/*******************************************************************************
 * Copyright(c) 2012 dongke All rights reserved. / Confidential
 * 类的信息：
 *        1.程序名称：LayoutBox.cs
 *        2.功能描述：票据主控件
 * 编辑履历：
 *        作者                日期                    版本                修改内容
 *        欧阳涛                2012/09/11                1.00                新建
 *******************************************************************************/
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Printing;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.Serialization.Formatters.Binary;
using System.Security.Cryptography;
using System.Windows.Forms;

namespace Dongke.WinForm.Controls.InvoiceLayout
{
    /// <summary>
    /// 票据模板控件
    /// </summary>
    public partial class LayoutBox : UserControl
    {
        #region 常量
        internal const string ITEMNAME_FIX = "Free";

        #region 保存、读取相关
        // TODO 加密保存 解密读取
        private static readonly byte[] KEY = new byte[] { 106, 240, 243, 74, 29, 163, 145, 29, 39, 65, 118, 96, 247, 237, 40, 121, 116, 10, 14, 50, 139, 117, 244, 163, 193, 190, 184, 66, 8, 185, 78, 73 };
        private static readonly byte[] IV = new byte[] { 26, 122, 25, 28, 97, 211, 152, 32, 223, 110, 120, 242, 170, 35, 96, 93 };
        #endregion 保存、读取相关
        #endregion 常量

        #region 成员变量
        #region Layout相关
        private bool _isDirty;                                                    // Layout是否变更
        private short _updateCount;                                        // 更新数量
        private int _newItemID;                                                // 生成新的ItemID
        private LayoutBoxDataBinding _dataBinding;                // 数据源绑定
        private object _dataSource;                                            // 数据源
        private string _dataMember;                                        // 数据源名
        private LayoutBoxPrintDataBinding _printDataBinding;    // 打印的数据源绑定
        private object _printDataSource;                                    // 打印的数据源
        private string _printDataMember;                                // 打印的数据源名
        /* Item的显示循序
         *                       Items     PaperArea.Controls
         *    Item的显示循序     Index     Index
         *            最前面     count-1   0
         *                ↓     ↑        ↓
         *                ↓     ↑        ↓
         *                ↓     ↑        ↓
         *            最背面     0         count-1
         */
        private Comparison<LayoutItem> _comparisonItems;        // 排序Item
        private List<LayoutItem> _items;                                        // LayoutBox中的Item集合
        private List<LayoutItem> _selectedItems;                            // 选择状态的Item集合
        private LayoutMode _layoutMode;                                    // Layout编辑模式
        private ZoomType _zoomType;                                        // Layout缩放模式
        private int _zoom;                                                            // Layout缩放比例
        private float _paperHeight;                                                // Layout的纸张的高
        private float _paperWidth;                                                // Layout的纸张的宽
        private DataFormats.Format _clipboardFormat;                    // 剪贴板数据格式
        private string _backgroundImageName;                            // 背景图片名
        #endregion Layout相关

        #region Item选择
        private bool _isMouseDownInPaperArea;                        // 鼠标按下
        private bool _isMouseMoveInPaperArea;                        // 鼠标移动
        private Rectangle _mouseRect;                                    // 鼠标框选范围
        #endregion Item选择

        #region Item移动
        private int _startX;                                            // 鼠标按下位置X
        private int _startY;                                            // 鼠标按下位置Y
        private int _mouseMoveX;                                // 鼠标移动位置X
        private int _mouseMoveY;                                // 鼠标移动位置Y
        private bool _isMouseDown;                            // 鼠标按下
        private bool _isMouseMove;                            // 鼠标移动
        private Rectangle[] _downRectangles;                // 鼠标按下Item范围
        private Rectangle[] _moveRectangles;                // 鼠标移动Item范围
        private bool _isShiftDown = false;                    // Shift按下
        private bool _isCtrlDown = false;                        // Ctrl按下
        #endregion Item移动

        #region 打印相关
        private bool _isPrintAreaVisible;                                // 是否标识打印范围
        private bool _isPrintBackground;                                // 是否打印背景
        private bool _landscape;                                            // true：横向打印；false：纵向打印
        private float _printOffsetX;                                        // 打印横向偏移
        private float _printOffsetY;                                        // 打印纵向偏移
        //private PrintPreviewDialogEx printPreviewDialogEx;
        private int _numberOfCopies = 1;                            // 打印份数
        private int _allocationSkipCount = 0;                        // 分配打印开头跳过的位置数
        private int _allocationNumX = 1;                                // 分配打印横方向的分配数
        private int _allocationNumY = 1;                                // 分配打印纵方向的分配数
        private float _allocationVerticalSpace;                        // 分配打印横方向的间隔
        private float _allocationHorizontalSpace;                    // 分配打印纵方向的间隔
        private float _marginLeft;                                        // 分配打印左侧余白
        private float _marginRight;                                        // 分配打印右侧余白
        private float _marginTop;                                        // 分配打印上侧余白
        private float _marginBottom;                                    // 分配打印下侧余白
        private PrintType _printType;                                    // 打印类别
        private int _printDataPosition = -1;                            // 打印数据源位置
        private int _printDataTotal = 0;                                // 打印数据总数
        private int _printDataCopies = -1;                            // 打印数据份数
        private int _allocationNum = 0;                                // 分配打印每页的分配数
        private PrintAction _printAction;                                // 打印种类
        private RectangleF _rectangleFGreed;                        // 打印范围
        private float _allOffsetX;                                            // 打印横向偏移
        private float _allOffsetY;                                            // 打印纵向偏移
        private float _printerOffsetX;                                    // 打印横向偏移
        private float _printerOffsetY;                                    // 打印纵向偏移
        #endregion 打印相关

        #region Item相关
        private int _maxItemLeft = 0;                                // 位置X上限(Pixel)
        private int _maxItemTop = 0;                                // 位置Y上限(Pixel)
        private int _maxItemWidth = 0;                            // 尺寸宽上限(Pixel)
        private int _maxItemHeight = 0;                            // 尺寸高上限(Pixel)
        private int _minItemWidth = 0;                                // 尺寸幅下限(Pixel)
        private int _minItemHeight = 0;                            // 尺寸高下限(Pixel)
        private int _pasteCount = 0;
        private RectangleF _lastItemRF = RectangleF.Empty;
        #endregion Item相关

        #region GridItem相关
        private int _currentPageNum = 1;                // 当前页码
        private int _printPageNum = 1;                    // 打印页的当前页码
        private int _totalPageNum = 1;                    // 总页数
        private DataSet _gridDataSet = null;                // GridItem利用的数据源
        #endregion GridItem相关
        #endregion 成员变量

        #region 构造函数
        /// <summary>
        /// 构造函数
        /// </summary>
        public LayoutBox(LayoutMode layoutMode = InvoiceLayout.LayoutMode.Preview)
        {
            this._layoutMode = layoutMode;
            InitializeComponent();
            InitializeLayoutBox();
            //printPreviewDialogEx = new PrintPreviewDialogEx();
            //this.printPreviewDialogEx.AutoScrollMargin = new System.Drawing.Size(0, 0);
            //this.printPreviewDialogEx.AutoScrollMinSize = new System.Drawing.Size(0, 0);
            //this.printPreviewDialogEx.ClientSize = new System.Drawing.Size(400, 300);
            //this.printPreviewDialogEx.Document = this.printDocument;
            //this.printPreviewDialogEx.Enabled = true;
            //this.printPreviewDialogEx.Name = "printPreviewDialogEx";
            //this.printPreviewDialogEx.Visible = false;
        }
        #endregion 构造函数

        #region 属性
        #region Layout
        /// <summary>
        /// Item选择状态变化中
        /// </summary>
        public bool ItemSelectionChanging
        {
            get;
            private set;
        }

        /// <summary>
        /// 一个GridItem
        /// </summary>
        public GridItem OneGridItem
        {
            get;
            private set;
        }

        /// <summary>
        /// 打印纸张
        /// </summary>
        [Browsable(false)]
        public Control PaperArea
        {
            get
            {
                return paperArea;
            }
        }

        /// <summary>
        /// 打印纸张图形范围
        /// </summary>
        [Browsable(false)]
        internal Microsoft.VisualBasic.PowerPacks.ShapeContainer ItemShapeContainer
        {
            get
            {
                return paperArea.ShapeContainer;
            }
        }

        /// <summary>
        /// Item图形集合
        /// </summary>
        [Browsable(false)]
        internal Microsoft.VisualBasic.PowerPacks.ShapeCollection ItemShapes
        {
            get
            {
                return paperArea.ShapeContainer.Shapes;
            }
        }

        /// <summary>
        /// 获得新的ItemID
        /// </summary>
        [Browsable(false)]
        internal int NewItemID
        {
            get
            {
                lock (this)
                {
                    return _newItemID++;
                }
            }
        }

        /// <summary>
        ///  获取或设置数据源
        /// </summary>
        [Browsable(true)]
        [Description(" 获取或设置数据源"), Category("LayoutBox")]
        [DefaultValue((string)null), RefreshProperties(RefreshProperties.Repaint), AttributeProvider(typeof(IListSource))]
        public object DataSource
        {
            get
            {
                return _dataSource;
            }
            set
            {
                if (value != _dataSource)
                {
                    _dataSource = value;
                    if (_layoutMode == LayoutMode.Preview)
                    {
                        SetDataSource();
                    }
                }
            }
        }

        /// <summary>
        /// 获取或设置被用作模块的基表中的数据源名称
        /// </summary>
        [Description("获取或设置被用作模块的基表中的数据源名称"), Category("LayoutBox")]
        [DefaultValue("")]
        public string DataMember
        {
            get
            {
                return _dataMember;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    value = string.Empty;
                }
                if (!value.Equals(_dataMember))
                {
                    _dataMember = value;
                    if (_layoutMode == LayoutMode.Preview)
                    {
                        SetDataMember();
                    }
                }
            }
        }

        /// <summary>
        /// 获取数据绑定源，从外部刷新数据源
        /// </summary>
        [Browsable(false)]
        [Description("获取数据绑定源，从外部刷新数据源"), Category("LayoutBox")]
        [DefaultValue((string)null)]
        public BindingSource BindingSource
        {
            get
            {
                if (_layoutMode == LayoutMode.Preview)
                {
                    if (_dataBinding != null)
                    {
                        return _dataBinding.BindingSource;
                    }
                }
                return null;
            }
        }

        /// <summary>
        /// 获取LayoutBox的全部Item集合
        /// </summary>
        [Description("获取LayoutBox的全部Item集合"), Category("LayoutBox")]
        [Browsable(false)]
        public List<LayoutItem> Items
        {
            get
            {
                return _items;
            }
        }

        /// <summary>
        /// 获取LayoutBox的全部Item集合
        /// </summary>
        [Description("获取剪贴板的内容"), Category("LayoutBox")]
        public DataFormats.Format ClipboardFormat
        {
            get
            {
                return GetCipboardFormat();
                //return _clipboardFormat;
            }
        }

        /// <summary>
        /// 获取LayoutBox的选择状态的Item集合
        /// </summary>
        [Description("获取LayoutBox的选择状态的Item集合"), Category("LayoutBox")]
        [Browsable(false)]
        public List<LayoutItem> SelectedItems
        {
            get
            {
                return _selectedItems;
            }
        }

        /// <summary>
        /// 获取或设置LayoutBox的编辑模式
        /// </summary>
        [Description("获取或设置LayoutBox的编辑模式"), Category("LayoutBox")]
        [DefaultValue(LayoutMode.Preview)]
        public LayoutMode LayoutMode
        {
            get
            {
                return _layoutMode;
            }
            set
            {
                if (_layoutMode != value)
                {
                    if (_layoutMode == LayoutMode.Edit)
                    {
                        ClearSelection();
                    }
                    _layoutMode = value;
                    if (_layoutMode == LayoutMode.Edit)
                    {
                        //// TODO
                        //if (this._clipboardFormat == null)
                        //{
                        //    _clipboardFormat =
                        //        DataFormats.GetFormat(typeof(LayoutItem).FullName
                        //                + "{"
                        //                + Guid.NewGuid().ToString()
                        //                + "}");
                        //}
                        tsmiAllSelect.Enabled = true;
                        tsmiBackgroundImage.Enabled = true;
                        tsmiPaperSize.Enabled = true;
                        paperArea.Click += new System.EventHandler(this.paperArea_Click);
                        paperArea.MouseDown += new System.Windows.Forms.MouseEventHandler(this.paperArea_MouseDown);
                        paperArea.MouseMove += new System.Windows.Forms.MouseEventHandler(this.paperArea_MouseMove);
                        paperArea.MouseUp += new System.Windows.Forms.MouseEventHandler(this.paperArea_MouseUp);
                        // TODO Item范围内移动
                        paperArea.ShapeContainer.KeyDown += new KeyEventHandler(RectTracker_KeyDown);
                        paperArea.ShapeContainer.KeyUp += new KeyEventHandler(RectTracker_KeyUp);
                        paperArea.ShapeContainer.MouseDown += new MouseEventHandler(RectTracker_MouseDown);
                        paperArea.ShapeContainer.MouseMove += new MouseEventHandler(RectTracker_MouseMove);
                        paperArea.ShapeContainer.MouseUp += new MouseEventHandler(RectTracker_MouseUp);
                        paperArea.ShapeContainer.LostFocus += new EventHandler(RectTracker_LostFocus);
                    }
                    else
                    {
                        tsmiAllSelect.Enabled = false;
                        tsmiBackgroundImage.Enabled = false;
                        tsmiPaperSize.Enabled = false;
                        paperArea.Click -= new System.EventHandler(this.paperArea_Click);
                        paperArea.MouseDown -= new System.Windows.Forms.MouseEventHandler(this.paperArea_MouseDown);
                        paperArea.MouseMove -= new System.Windows.Forms.MouseEventHandler(this.paperArea_MouseMove);
                        paperArea.MouseUp -= new System.Windows.Forms.MouseEventHandler(this.paperArea_MouseUp);
                        // TODO Item范围内移动
                        paperArea.ShapeContainer.KeyDown -= new KeyEventHandler(RectTracker_KeyDown);
                        paperArea.ShapeContainer.KeyUp -= new KeyEventHandler(RectTracker_KeyUp);
                        paperArea.ShapeContainer.MouseDown -= new MouseEventHandler(RectTracker_MouseDown);
                        paperArea.ShapeContainer.MouseMove -= new MouseEventHandler(RectTracker_MouseMove);
                        paperArea.ShapeContainer.MouseUp -= new MouseEventHandler(RectTracker_MouseUp);
                        paperArea.ShapeContainer.LostFocus -= new EventHandler(RectTracker_LostFocus);
                        if (_layoutMode == LayoutMode.Preview)
                        {
                            SetDataSource();
                            SetDataMember();
                            SetPrintDataSource();
                            SetPrintDataMember();
                        }
                    }
                }
            }
        }

        /// <summary>
        /// 获取或设置LayoutBox的缩放模式
        /// </summary>
        [Description("获取或设置LayoutBox的缩放模式"), Category("LayoutBox")]
        [DefaultValue(ZoomType.Specify)]
        public ZoomType ZoomType
        {
            get
            {
                return _zoomType;
            }
            set
            {
                if (_zoomType != value)
                {
                    _zoomType = value;
                    if (value != ZoomType.Whole)
                    {
                        paperBox.AutoScroll = true;
                        // 改变纸张大小
                        ChangePaperSize();
                        // 设置全部Item的比例
                        ZoomAllItems();
                    }
                    else
                    {
                        paperBox.AutoScroll = false;
                        // 全部Item显示
                        InitializeZoom();
                    }
                    if (ZoomChanged != null)
                    {
                        ZoomChanged(this, EventArgs.Empty);
                    }
                }
            }
        }

        /// <summary>
        /// 获取或设置LayoutBox的缩放比例（%）
        /// </summary>
        [Description("获取或设置LayoutBox的缩放比例"), Category("LayoutBox")]
        [DefaultValue(100)]
        public int Zoom
        {
            get
            {
                return _zoom;
            }
            set
            {
                if (0 <= value && _zoom != value)
                {
                    _zoom = value;
                    if (_zoomType == ZoomType.Specify)
                    {
                        // 改变纸张大小
                        ChangePaperSize();
                        // 设置全部Item的比例
                        ZoomAllItems();
                        if (ZoomChanged != null)
                        {
                            ZoomChanged(this, EventArgs.Empty);
                        }
                    }
                    else
                    {
                        ZoomType = ZoomType.Specify;
                    }
                }
            }
        }

        /// <summary>
        /// 获取或设置纸张的高（mm）
        /// </summary>
        [Description("获取或设置纸张的高"), Category("LayoutBox")]
        [DefaultValue(297f)]
        public float PaperHeight
        {
            get
            {
                return _paperHeight;
            }
            set
            {
                if (_layoutMode != LayoutMode.Edit)
                {
                    return;
                }
                SetPaperAreaSize(_paperWidth, value);
            }
        }

        /// <summary>
        /// 获取或设置纸张的宽（mm）
        /// </summary>
        [Description("获取或设置纸张的宽"), Category("LayoutBox")]
        [DefaultValue(210f)]
        public float PaperWidth
        {
            get
            {
                return _paperWidth;
            }
            set
            {
                if (_layoutMode != LayoutMode.Edit)
                {
                    return;
                }
                SetPaperAreaSize(value, _paperHeight);
            }
        }

        /// <summary>
        /// 获取纸张的背景图片名
        /// </summary>
        [Description("获取或设置纸张的背景图片"), Category("LayoutBox")]
        [DefaultValue("")]
        public string BackgroundImageName
        {
            get
            {
                return _backgroundImageName;
            }
        }

        /// <summary>
        /// 获取或设置纸张的背景图片
        /// </summary>
        [Description("获取或设置纸张的背景图片"), Category("LayoutBox")]
        [DefaultValue((string)null)]
        public override Image BackgroundImage
        {
            get
            {
                return paperArea.BackgroundImage;
            }
            set
            {
                paperArea.BackgroundImage = value;
                _backgroundImageName = string.Empty;
            }
        }

        /// <summary>
        /// 获取LayoutBox的布局是否已经改变
        /// </summary>
        //[Description("获取LayoutBox的布局是否已经改变"), Category("LayoutBox")]
        [Browsable(false)]
        public bool Dirty
        {
            get
            {
                return _isDirty;
            }
            internal set
            {
                SetDitry(value);
            }
        }

        /// <summary>
        /// 获取或设置是否加密保存、读取流
        /// </summary>
        [Description("获取或设置是否加密保存、读取流"), Category("LayoutBox")]
        [DefaultValue(true)]
        public bool CryptoStream = true;
        #endregion Layout

        #region 打印相关
        /// <summary>
        /// 获取或设置打印数据源
        /// </summary>
        [Browsable(true)]
        [Description("获取或设置打印数据源"), Category("打印相关")]
        [DefaultValue((string)null), RefreshProperties(RefreshProperties.Repaint), AttributeProvider(typeof(IListSource))]
        public object PrintDataSource
        {
            get
            {
                return _printDataSource;
            }
            set
            {
                if (value != _printDataSource)
                {
                    _printDataSource = value;
                    if (_layoutMode == LayoutMode.Preview)
                    {
                        SetPrintDataSource();
                    }
                }
            }
        }

        /// <summary>
        /// 获取或设置打印数据源
        /// </summary>
        [Description("获取或设置打印数据源"), Category("打印相关")]
        [DefaultValue("")]
        public string PrintDataMember
        {
            get
            {
                return _printDataMember;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    value = string.Empty;
                }
                if (!value.Equals(_printDataMember))
                {
                    _printDataMember = value;
                    if (_layoutMode == LayoutMode.Preview)
                    {
                        SetPrintDataMember();
                    }
                }
            }
        }

        /// <summary>
        /// 获取或设置是否用绿色虚线标识出打印区域
        /// </summary>
        [Description("获取或设置是否用绿色虚线标识出打印区域"), Category("打印相关")]
        [DefaultValue(true)]
        public bool PrintAreaVisible
        {
            get
            {
                return _isPrintAreaVisible;
            }
            set
            {
                if (_isPrintAreaVisible != value)
                {
                    _isPrintAreaVisible = value;
                    _isDirty = true;
                }
            }
        }

        /// <summary>
        /// 获取或设置一个值，该值指示是否打印背景
        /// </summary>
        [Description("获取或设置一个值，该值指示是否打印背景"), Category("打印相关")]
        [DefaultValue(false)]
        public bool PrintBackground
        {
            get
            {
                return _isPrintBackground;
            }
            set
            {
                if (_isPrintBackground != value)
                {
                    _isPrintBackground = value;
                    _isDirty = true;
                }
            }
        }

        /// <summary>
        /// 获取或设置一个值，该值指示是否在横向或纵向的纸张打印页面
        /// </summary>
        [Description("获取或设置一个值，该值指示是否在横向或纵向的纸张时打印页面\r\n打印横向的页面为true；否则为false。默认是由打印机决定。"), Category("打印相关")]
        [DefaultValue(false)]
        public bool Landscape
        {
            get
            {
                return _landscape;
            }
            set
            {
                printDocument.DefaultPageSettings.Landscape = value;
                _landscape = value;
            }
        }

        /// <summary>
        /// 获取或设置打印纸张的大小
        /// </summary>
        [Description("获取或设置打印纸张的大小"), Category("LayoutBox")]
        [AmbientValue(typeof(Size), "0, 0")]
        [Browsable(false)]
        [DefaultValue((string)null)]
        public PaperSize PaperSize
        {
            get
            {
                return printDocument.PrinterSettings.DefaultPageSettings.PaperSize;
            }
            set
            {
                printDocument.PrinterSettings.DefaultPageSettings.PaperSize = value;
            }
        }

        /// <summary>
        /// Defines a reusable object that sends output to a printer, when printing from a Windows Forms application
        /// </summary>
        [Description("Defines a reusable object that sends output to a printer, when printing from a Windows Forms application"), Category("打印相关")]
        [Browsable(false)]
        public PrintDocument PrintDocument
        {
            get
            {
                return printDocument;
            }
        }

        /// <summary>
        /// 获取或设置打印机的配置信息
        /// </summary>
        [Description("获取或设置打印机的配置信息"), Category("打印相关")]
        [Browsable(false)]
        [DefaultValue((string)null)]
        public PrinterSettings PrinterSettings
        {
            get
            {
                return printDocument.PrinterSettings;
            }
            set
            {
                printDocument.PrinterSettings = value;
                _landscape = printDocument.PrinterSettings.DefaultPageSettings.Landscape;
            }
        }

        /// <summary>
        /// 获取或设置水平方向打印偏移（mm）
        /// </summary>
        [Description("获取或设置水平方向打印偏移"), Category("打印相关")]
        [DefaultValue(0f)]
        public float PrintOffsetX
        {
            get
            {
                return _printOffsetX;
            }
            set
            {
                _printOffsetX = value;
            }
        }

        /// <summary>
        /// 获取或设置垂直方向打印偏移（mm）
        /// </summary>
        [Description("获取或设置垂直方向打印偏移"), Category("打印相关")]
        [DefaultValue(0f)]
        public float PrintOffsetY
        {
            get
            {
                return _printOffsetY;
            }
            set
            {
                _printOffsetY = value;
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，水平方向的分配数
        /// </summary>
        [Description("获取或设置分配打印时，水平方向的分配数"), Category("打印相关")]
        [DefaultValue(1)]
        public int AllocationNumX
        {
            get
            {
                return _allocationNumX;
            }
            set
            {
                if (0 < value)
                {
                    _allocationNumX = value;
                }
                else
                {
                    _allocationNumX = 1;
                }
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，垂直方向的分配数
        /// </summary>
        [Description("获取或设置分配打印时，垂直方向的分配数"), Category("打印相关")]
        [DefaultValue(1)]
        public int AllocationNumY
        {
            get
            {
                return _allocationNumY;
            }
            set
            {
                if (0 < value)
                {
                    _allocationNumY = value;
                }
                else
                {
                    _allocationNumY = 1;
                }
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，左侧余白（mm）
        /// </summary>
        [Description("获取或设置分配打印时，左侧余白（mm）"), Category("打印相关")]
        [DefaultValue(0f)]
        public float MarginLeft
        {
            get
            {
                return _marginLeft;
            }
            set
            {
                _marginLeft = value;
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，右侧余白（mm）
        /// </summary>
        [Description("获取或设置分配打印时，右侧余白（mm）"), Category("打印相关")]
        [DefaultValue(0f)]
        public float MarginRight
        {
            get
            {
                return _marginRight;
            }
            set
            {
                _marginRight = value;
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，上侧余白（mm）
        /// </summary>
        [Description("获取或设置分配打印时，上侧余白（mm）"), Category("打印相关")]
        [DefaultValue(0f)]
        public float MarginTop
        {
            get
            {
                return _marginTop;
            }
            set
            {
                _marginTop = value;
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，下侧余白（mm）
        /// </summary>
        [Description("获取或设置分配打印时，下侧余白（mm）"), Category("打印相关")]
        [DefaultValue(0f)]
        public float MarginBottom
        {
            get
            {
                return _marginBottom;
            }
            set
            {
                _marginBottom = value;
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，上下间隔（mm）
        /// </summary>
        [Description("获取或设置分配打印时，上下间隔（mm）"), Category("打印相关")]
        [DefaultValue(0f)]
        public float AllocationVirticalSpace
        {
            get
            {
                return _allocationVerticalSpace;
            }
            set
            {
                if (value < 0)
                {
                    _allocationVerticalSpace = 0;
                }
                else
                {
                    _allocationVerticalSpace = value;
                }
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，左右间隔（mm）
        /// </summary>
        [Description("获取或设置分配打印时，左右间隔（mm）"), Category("打印相关")]
        [DefaultValue(0f)]
        public float AllocationHorizontalSpace
        {
            get
            {
                return _allocationHorizontalSpace;
            }
            set
            {
                if (value < 0)
                {
                    _allocationHorizontalSpace = 0;
                }
                else
                {
                    _allocationHorizontalSpace = value;
                }
            }
        }

        /// <summary>
        /// 获取或设置打印份数
        /// </summary>
        [Description("获取或设置打印份数"), Category("打印相关")]
        [DefaultValue(1)]
        public int NumberOfCopies
        {
            get
            {
                return _numberOfCopies;
            }
            set
            {
                if (0 < value)
                {
                    _numberOfCopies = value;
                }
                else
                {
                    _numberOfCopies = 1;
                }
            }
        }

        /// <summary>
        /// 获取或设置分配打印时，开头跳过的位置数
        /// </summary>
        [Description("获取或设置分配打印时，开头跳过的位置数"), Category("打印相关")]
        [DefaultValue(0)]
        public int AllocationSkipCount
        {
            get
            {
                return _allocationSkipCount;
            }
            set
            {
                if (0 < value)
                {
                    _allocationSkipCount = value;
                }
                else
                {
                    _allocationSkipCount = 0;
                }
            }
        }
        #endregion 打印相关

        #region Item相关
        /// <summary>
        /// 位置X上限(Pixel)
        /// </summary>
        [Browsable(false)]
        internal int MaxItemLeft
        {
            get
            {
                return _maxItemLeft;
            }
        }

        /// <summary>
        /// 位置Y上限(Pixel)
        /// </summary>
        [Browsable(false)]
        internal int MaxItemTop
        {
            get
            {
                return _maxItemTop;
            }
        }

        /// <summary>
        /// 尺寸宽上限(Pixel)
        /// </summary>
        [Browsable(false)]
        internal int MaxItemWidth
        {
            get
            {
                return _maxItemWidth;
            }
        }

        /// <summary>
        /// 尺寸高上限(Pixel)
        /// </summary>
        [Browsable(false)]
        internal int MaxItemHeight
        {
            get
            {
                return _maxItemHeight;
            }
        }

        /// <summary>
        ///尺寸宽下限(Pixel)
        /// </summary>
        [Browsable(false)]
        internal int MinItemWidth
        {
            get
            {
                return _minItemWidth;
            }
        }

        /// <summary>
        /// 尺寸高下限(Pixel)
        /// </summary>
        [Browsable(false)]
        internal int MinItemHeight
        {
            get
            {
                return _minItemHeight;
            }
        }
        #endregion Item相关
        #endregion 属性

        #region public函数
        #region 保存、读取相关
        /// <summary>
        /// 从模版中读取Layout
        /// </summary>
        /// <param name="bytes">布局模版</param>
        /// <returns>读取成功true；读取失败false</returns>
        public bool ReadLayout(byte[] bytes)
        {
            MemoryStream memoryStream = null;
            if (bytes != null && 0 < bytes.Length)
            {
                memoryStream = new MemoryStream(bytes);
                memoryStream.Position = 0;
            }
            return ReadLayout(memoryStream);
        }

        /// <summary>
        /// 保存Layout到布局模版
        /// </summary>
        /// <returns>布局模版</returns>
        public byte[] WriteLayout()
        {
            MemoryStream memoryStream = new MemoryStream();
            if (WriteLayout(memoryStream))
            {
                return memoryStream.ToArray();
            }
            return null;
        }

        /// <summary>
        /// 从模版中读取Layout
        /// </summary>
        /// <param name="stream">布局模版</param>
        /// <returns>读取成功true；读取失败false</returns>
        public bool ReadLayout(Stream stream)
        {
            // TODO 异常分析
            int err_level = 0;
            try
            {
                if (stream == null)
                {
                    // 清除Layout布局
                    ClearLayoutBox();
                    //paperArea.Refresh();
                    return true;
                }
                err_level = 1;
                // TODO
                if (_clipboardFormat != null)
                {
                    this.ClearClipboard();
                    //if (Clipboard.ContainsData(_clipboardFormat.Name))
                    //{
                    //    CopyToClipboard(_clipboardFormat.Name, null);
                    //}
                    //_clipboardFormat =
                    //    DataFormats.GetFormat(typeof(LayoutItem).FullName
                    //                        + "{"
                    //                        + Guid.NewGuid().ToString()
                    //                        + "}");
                }
                err_level = 2;
                _lastItemRF = RectangleF.Empty;
                _mouseRect = Rectangle.Empty;
                SetDitry(false);
                _selectedItems.Clear();
                err_level = 3;
                foreach (LayoutItem item in _items)
                {
                    if (item.Frame != null)
                    {
                        item.Frame.Dispose();
                        item.Frame = null;
                    }
                    item.Selected = false;
                    item.Dispose();
                }
                _items.Clear();

                err_level = 4;
                // 反序列化
                BinaryFormatter formatter = new BinaryFormatter();
                PropertyOfLayoutBox propertyOflayoutBox = null;
                // TODO 解密读取
                if (CryptoStream)
                {
                    Rijndael age = Rijndael.Create();
                    CryptoStream cStream = new CryptoStream(stream,
                            age.CreateDecryptor(KEY, IV),
                            CryptoStreamMode.Read);
                    propertyOflayoutBox = (PropertyOfLayoutBox)formatter.Deserialize(cStream);
                }
                else
                {
                    propertyOflayoutBox = (PropertyOfLayoutBox)formatter.Deserialize(stream);
                }
                err_level = 5;
                _lastItemRF = propertyOflayoutBox.LastItemRF;
                _newItemID = propertyOflayoutBox.NewItemID;
                _paperHeight = propertyOflayoutBox.PaperHeight;
                _paperWidth = propertyOflayoutBox.PaperWidth;
                if (_zoomType != ZoomType.Whole)
                {
                    ChangePaperSize();
                }
                else
                {
                    InitializeZoom();
                }
                err_level = 6;
                paperArea.BackgroundImage = propertyOflayoutBox.BackgroundImage;
                _backgroundImageName = propertyOflayoutBox.BackgroundImageName;
                _isPrintBackground = propertyOflayoutBox.PrintBackground;
                _isPrintAreaVisible = propertyOflayoutBox.PrintAreaVisible;
                ArrayList items = propertyOflayoutBox.Items;
                if (items != null && 0 < items.Count)
                {
                    foreach (LayoutItem item in items)
                    {
                        item.Init(this, false);
                        if (item.ItemType == ItemType.Grid)
                        {
                            this.OneGridItem = item as GridItem;
                        }
                    }
                }
                err_level = 7;
                paperArea.Select();
                RefreshItemsBound();
                //paperArea.Refresh();
                return true;
            }
            catch (Exception ex)
            {
                Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
                      "PrintBarcode --- " + err_level, ex.ToString(),
                      DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
                      Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
                throw ex;
            }
        }

        /// <summary>
        /// 保存Layout到布局模版
        /// </summary>
        /// <param name="stream">布局模版</param>
        /// <returns>保存成功true；保存失败false</returns>
        public bool WriteLayout(Stream stream)
        {
            PropertyOfLayoutBox propertyOflayoutBox = new PropertyOfLayoutBox();
            propertyOflayoutBox.LastItemRF = _lastItemRF;
            propertyOflayoutBox.NewItemID = _newItemID;
            propertyOflayoutBox.PaperHeight = _paperHeight;
            propertyOflayoutBox.PaperWidth = _paperWidth;
            propertyOflayoutBox.BackgroundImage = paperArea.BackgroundImage;
            propertyOflayoutBox.BackgroundImageName = _backgroundImageName;
            propertyOflayoutBox.PrintBackground = _isPrintBackground;
            propertyOflayoutBox.PrintAreaVisible = _isPrintAreaVisible;
            propertyOflayoutBox.Items = new ArrayList(_items);
            // 序列化
            BinaryFormatter formatter = new BinaryFormatter();
            // TODO 加密保存
            if (CryptoStream)
            {
                Rijndael age = Rijndael.Create();
                CryptoStream cStream = new CryptoStream(stream,
                        age.CreateEncryptor(KEY, IV),
                        CryptoStreamMode.Write);
                formatter.Serialize(cStream, propertyOflayoutBox);
                cStream.FlushFinalBlock();
            }
            else
            {
                formatter.Serialize(stream, propertyOflayoutBox);
            }
            return true;
        }

        /// <summary>
        /// 根据指定的ItemType，创建一个新Item对象
        /// </summary>
        /// <param name="itemType">ItemType的枚举值，表示创建的项目类型</param>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        public LayoutItem NewItem(ItemType itemType, bool isShowDialog)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return null;
            }
            LayoutItem item = null;
            switch (itemType)
            {
                case ItemType.Text:
                    item = NewTextItem(isShowDialog);
                    break;
                case ItemType.Image:
                    item = NewImageItem(isShowDialog);
                    break;
                case ItemType.Rectangle:
                    item = NewRectangleItem(isShowDialog);
                    break;
                case ItemType.Ellipse:
                    item = NewEllipseItem(isShowDialog);
                    break;
                case ItemType.Grid:
                    if (OneGridItem != null)
                    {
                        return null;
                    }
                    item = NewGridItem(isShowDialog);
                    OneGridItem = item as GridItem;
                    break;
                case ItemType.PageNum:
                    item = NewPageNumItem(isShowDialog);
                    break;
                case ItemType.TotalText:
                    item = NewTotalTextItem(isShowDialog);
                    break;
                case ItemType.Barcode:
                    item = NewBarcodeItem(isShowDialog);
                    break;
                case ItemType.QRcode:
                    item = NewQRcodeItem(isShowDialog);
                    break;
                default:
                    return null;
            }
            if (item != null)
            {
                _lastItemRF.X = item.Left;
                _lastItemRF.Y = item.Top;
                if (_lastItemRF.Width < item.Width)
                {
                    _lastItemRF.Width = item.Width;
                }
                _lastItemRF.Height = item.Height;
                _isDirty = true;

                SetItemChangedArgs(item, ItemChangeType.Added);
            }
            return item;
        }
        #endregion 保存、读取相关

        #region Item操作相关
        /// <summary>
        /// 根据ItemID，获取Item
        /// </summary>
        /// <param name="itemID">ItemID</param>
        /// <returns>Item</returns>
        public LayoutItem GetItem(int itemID)
        {
            foreach (LayoutItem item in _items)
            {
                if (item.ID == itemID)
                {
                    return item;
                }
            }
            return null;
        }

        /// <summary>
        /// 根据指定的ItemType，获取Item
        /// </summary>
        /// <param name="itemType">ItemType</param>
        /// <returns>Item</returns>
        public LayoutItem[] GetItems(ItemType itemType)
        {
            //var q = from item in _items where item.ItemType ==itemType select item;
            Predicate<LayoutItem> isPrime = delegate(LayoutItem item)
            {
                return (item.ItemType == itemType) ? true : false;
            };
            return _items.FindAll(isPrime).ToArray();
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="index">Item在Item集合中的索引</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        public void SelectItem(int index, bool value)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            if (index < 0 || index >= Items.Count)
            {
                return;
            }
            LayoutItem item = _items[index];
            SelectItemMultiple(item, value);
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="indexes">Item在Item集合中的索引</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        public void SelectItems(int[] indexes, bool value)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }

            List<LayoutItem> items = new List<LayoutItem>();
            foreach (int index in indexes)
            {
                if (index < 0 || Items.Count <= index)
                {
                    continue;
                }
                items.Add(Items[index]);
            }
            if (0 < items.Count)
            {
                SelectItemsSingle(items.ToArray(), value);
            }
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="item">Item</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        public void SelectItemSingle(LayoutItem item, bool value)
        {
            if (_layoutMode != LayoutMode.Edit || item == null)
            {
                return;
            }
            bool isChanging = false;
            ItemSelectionChanging = true;

            if (value)
            {
                if (0 < _selectedItems.Count)
                {
                    LayoutItem[] selectedItems = _selectedItems.ToArray();
                    foreach (LayoutItem selectedItem in selectedItems)
                    {
                        if (item == null || item.ID == selectedItem.ID)
                        {
                            continue;
                        }
                        isChanging = true;
                        selectedItem.Selected = false;
                        _selectedItems.Remove(selectedItem);
                        if (selectedItem.Frame != null)
                        {
                            selectedItem.Frame.Dispose();
                            selectedItem.Frame = null;
                        }
                        SetItemSelectionChangedArgs(selectedItem, false);
                    }
                }
            }

            if (value != item.Selected)
            {
                if (value)
                {
                    item.Frame = new ItemFrame(item);
                    item.Selected = true;
                    _selectedItems.Add(item);
                    _selectedItems.Sort(_comparisonItems);
                    paperArea.Controls.Add(item.Frame);
                    item.Frame.BringToFront();
                }
                else
                {
                    item.Selected = false;
                    _selectedItems.Remove(item);
                    if (item.Frame != null)
                    {
                        item.Frame.Dispose();
                        item.Frame = null;
                    }
                }
                isChanging = true;
                SetItemSelectionChangedArgs(item, value);
            }
            ItemSelectionChanging = false;
            if (isChanging)
            {
                if (UserSelectionChanged != null)
                {
                    UserSelectionChanged(this, EventArgs.Empty);
                }
            }
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="items">Item</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        public void SelectItemsSingle(LayoutItem[] items, bool value)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            if (items == null || items.Length <= 0)
            {
                return;
            }

            bool isChanging = false;
            ItemSelectionChanging = true;

            if (value)
            {
                if (0 < _selectedItems.Count)
                {
                    LayoutItem[] selecteditems = _selectedItems.ToArray();
                    foreach (LayoutItem selecteditem in selecteditems)
                    {
                        if (selecteditem == null)
                        {
                            continue;
                        }
                        foreach (LayoutItem item in items)
                        {
                            if (item == null || item.ID == selecteditem.ID)
                            {
                                continue;
                            }
                            isChanging = true;
                            selecteditem.Selected = false;
                            _selectedItems.Remove(selecteditem);
                            if (selecteditem.Frame != null)
                            {
                                selecteditem.Frame.Dispose();
                                selecteditem.Frame = null;
                            }
                            SetItemSelectionChangedArgs(selecteditem, false);
                        }
                    }
                }
            }

            foreach (LayoutItem item in items)
            {
                SelectItemMultiple(item, value, ref isChanging);
            }

            ItemSelectionChanging = false;
            if (isChanging)
            {
                if (UserSelectionChanged != null)
                {
                    UserSelectionChanged(this, EventArgs.Empty);
                }
            }
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="item">Item</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        public void SelectItemMultiple(LayoutItem item, bool value)
        {
            bool isChanging = false;
            ItemSelectionChanging = true;
            SelectItemMultiple(item, value, ref isChanging);
            ItemSelectionChanging = false;
            if (isChanging)
            {
                if (UserSelectionChanged != null)
                {
                    UserSelectionChanged(this, EventArgs.Empty);
                }
            }
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="item">Item</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        /// <param name="isChanging">是否改变</param>
        private void SelectItemMultiple(LayoutItem item, bool value, ref bool isChanging)
        {
            if (_layoutMode != LayoutMode.Edit || item == null)
            {
                return;
            }
            if (value != item.Selected)
            {
                if (value)
                {
                    item.Frame = new ItemFrame(item);
                    item.Selected = true;
                    _selectedItems.Add(item);
                    _selectedItems.Sort(_comparisonItems);
                    paperArea.Controls.Add(item.Frame);
                    item.Frame.BringToFront();
                }
                else
                {
                    item.Selected = false;
                    _selectedItems.Remove(item);
                    if (item.Frame != null)
                    {
                        item.Frame.Dispose();
                        item.Frame = null;
                    }
                }
                isChanging = true;
                SetItemSelectionChangedArgs(item, value);
            }
        }

        /// <summary>
        /// 改变指定Item的选择状态
        /// </summary>
        /// <param name="items">Item</param>
        /// <param name="value">Item的选择状态，选中为true；未选中为true</param>
        public void SelectItemsMultiple(LayoutItem[] items, bool value)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            if (items == null || items.Length <= 0)
            {
                return;
            }

            bool isChanging = false;
            ItemSelectionChanging = true;
            foreach (LayoutItem item in items)
            {
                SelectItemMultiple(item, value, ref isChanging);
            }

            ItemSelectionChanging = false;
            if (isChanging)
            {
                if (UserSelectionChanged != null)
                {
                    UserSelectionChanged(this, EventArgs.Empty);
                }
            }
        }

        /// <summary>
        /// 取消所有选择的项目
        /// </summary>
        public void ClearSelection()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            bool isChanging = false;
            ItemSelectionChanging = true;

            if (0 < _selectedItems.Count)
            {
                LayoutItem[] selectedItems = _selectedItems.ToArray();
                foreach (LayoutItem selectedItem in selectedItems)
                {
                    if (selectedItem == null)
                    {
                        continue;
                    }
                    isChanging = true;
                    selectedItem.Selected = false;
                    _selectedItems.Remove(selectedItem);
                    if (selectedItem.Frame != null)
                    {
                        selectedItem.Frame.Dispose();
                        selectedItem.Frame = null;
                    }
                    SetItemSelectionChangedArgs(selectedItem, false);
                }
            }
            ItemSelectionChanging = false;
            if (isChanging)
            {
                if (UserSelectionChanged != null)
                {
                    UserSelectionChanged(this, EventArgs.Empty);
                }
            }
        }

        /// <summary>
        /// 剪切选中的Item到剪切板
        /// </summary>
        public void CutItem()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            _pasteCount = 0;
            if (0 < _selectedItems.Count)
            {
                CopyToClipboard(new ArrayList(_selectedItems));
                DeleteItem();
                _isDirty = true;
            }
        }

        /// <summary>
        /// 粘贴Item到LayoutBox
        /// </summary>
        public void PasteItem()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            object objectItems = GetFromClipboard();
            if (objectItems == null)
            {
                _pasteCount = 0;
                return;
            }
            ArrayList items = objectItems as ArrayList;
            if (items == null || items.Count <= 0)
            {
                _pasteCount = 0;
                return;
            }
            List<LayoutItem> layoutItems = new List<LayoutItem>();
            _pasteCount++;
            foreach (LayoutItem item in items)
            {
                if (item == null || item is GridItem)
                {
                    continue;
                }
                int id = item.ID;
                TextItem textItem = null;
                string dataMember = null;
                string defaultItemName = null;
                string textItemName = null;
                if (item.ItemType == ItemType.Text || item.ItemType == ItemType.TotalText)
                {
                    textItem = item as TextItem;
                    if (textItem != null)
                    {
                        dataMember = textItem.DataMember;
                        defaultItemName = textItem.DefaultItemName;
                        textItemName = textItem.TextItemName;
                    }
                }
                item.Init(this, true);
                if (textItem != null)
                {
                    textItem.DataMember = dataMember;
                    textItem.DefaultItemName = defaultItemName;
                    textItem.TextItemName = textItemName;
                }
                //int top = item.ShapeBounds.Top + (item.ShapeBounds.Height + 2) * _pasteCount;
                // 下移60mm
                //int top = item.ShapeBounds.Top + 227;
                ////item.ResetItemLocation(item.ShapeBounds.Left, top);
                //设置图形像素坐标时刷新毫米坐标
                //item.MoveItem(item.ShapeBounds.Left, top);
                // 下移5mm
                item.Top += 5;

                _isDirty = true;
                layoutItems.Add(item);
                if (this.UserAddedItem != null)
                {
                    ItemChangedEventArgs e = new ItemChangedEventArgs();
                    e.Item = item;
                    e.ChangedType = ItemChangeType.Added;
                    e.ItemID = item.ID;
                    this.UserAddedItem(this, e);
                }
                SetItemChangedArgs(item, ItemChangeType.Added);
            }

            // 粘贴的新Item为选择状态
            if (1 == layoutItems.Count)
            {
                SelectItemSingle(layoutItems[0], true);
            }
            else if (1 < layoutItems.Count)
            {
                ClearSelection();
                SelectItemsMultiple(layoutItems.ToArray(), true);
            }
        }

        /// <summary>
        /// 复制选中的Item到剪切板
        /// </summary>
        public void CopyItem()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            _pasteCount = 0;
            if (0 < _selectedItems.Count)
            {
                CopyToClipboard(new ArrayList(_selectedItems));
            }
        }

        /// <summary>
        /// 删除选中的Item
        /// </summary>
        public void DeleteItem()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            if (0 < _selectedItems.Count)
            {
                LayoutItem[] items = _selectedItems.ToArray();
                foreach (LayoutItem item in items)
                {
                    ItemChangedEventArgs e = new ItemChangedEventArgs();
                    e.Item = item;
                    e.ChangedType = ItemChangeType.Deleted;
                    e.ItemID = item.ID;

                    DeletetItem(item);

                    if (this.UserDeletedItem != null)
                    {
                        this.UserDeletedItem(this, e);
                    }
                }
            }
        }

        /// <summary>
        /// 根据ItemID删除Item
        /// </summary>
        /// <param name="itemID">ItemID</param>
        public void DeletetItem(int itemID)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            LayoutItem item = GetItem(itemID);
            DeletetItem(item);
        }

        /// <summary>
        /// 删除指定的Item
        /// </summary>
        /// <param name="item">item</param>
        public void DeletetItem(LayoutItem item)
        {
            if (_layoutMode != LayoutMode.Edit || item == null)
            {
                return;
            }

            if (item.Selected)
            {
                item.Selected = false;
                _selectedItems.Remove(item);
                if (item.Frame != null)
                {
                    item.Frame.Dispose();
                    item.Frame = null;
                }
                SetItemSelectionChangedArgs(item, false);
            }
            _items.Remove(item);
            item.Dispose();
            _isDirty = true;
            SetItemChangedArgs(item, ItemChangeType.Deleted);
        }

        /// <summary>
        /// 重绘Item的内容
        /// </summary>
        public void RefreshItems()
        {
            if (_layoutMode == LayoutMode.Preview)
            {
                RefreshItemsCurrentPositionValue();
            }
        }

        /// <summary>
        /// 对齐选定的Item
        /// </summary>
        /// <param name="arrangeType">对齐方式</param>
        public void ArrangeItem(ArrangeType arrangeType)
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            switch (arrangeType)
            {
                case ArrangeType.Left:
                    ArrangeItemsLeft();
                    break;
                case ArrangeType.Right:
                    ArrangeItemsRight();
                    break;
                case ArrangeType.HorizontalCenter:
                    ArrangeItemsHorizontalCenter();
                    break;
                case ArrangeType.Top:
                    ArrangeItemsTop();
                    break;
                case ArrangeType.Bottom:
                    ArrangeItemsBottom();
                    break;
                case ArrangeType.VerticalCenter:
                    ArrangeItemsVerticalCenter();
                    break;
                //case ArrangeType.LeftRight:
                //    ArrangeItemsLeftRight();
                //    break;
                //case ArrangeType.TopBottom:
                //    ArrangeItemsTopBottom();
                //    break;
                default:
                    break;
            }
        }

        /// <summary>
        /// 所有选中的Item的顶部对齐
        /// </summary>
        public void ArrangeItemsTop()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            float minTop = paperArea.Height;
            foreach (LayoutItem item in _selectedItems)
            {
                minTop = Math.Min(item.Top, minTop);
            }
            foreach (LayoutItem item in _selectedItems)
            {
                item.Top = minTop;
            }
            _isDirty = true;
        }

        /// <summary>
        /// 所有选中的Item的底部对齐
        /// </summary>
        public void ArrangeItemsBottom()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            float maxBottom = 0;
            foreach (LayoutItem item in _selectedItems)
            {
                maxBottom = Math.Max(item.Bottom, maxBottom);
            }
            foreach (LayoutItem item in _selectedItems)
            {
                item.Top = maxBottom - item.Height;
            }
            _isDirty = true;
        }

        /// <summary>
        /// 所有选中的Item的左侧对齐
        /// </summary>
        public void ArrangeItemsLeft()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            float minLeft = paperArea.Width;
            foreach (LayoutItem item in _selectedItems)
            {
                minLeft = Math.Min(item.Left, minLeft);
            }
            foreach (LayoutItem item in _selectedItems)
            {
                item.Left = minLeft;
            }
            _isDirty = true;
        }

        /// <summary>
        /// 所有选中的Item的右侧对齐
        /// </summary>
        public void ArrangeItemsRight()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            float maxRight = 0;
            foreach (LayoutItem item in _selectedItems)
            {
                maxRight = Math.Max(item.Right, maxRight);
            }
            foreach (LayoutItem item in _selectedItems)
            {
                item.Left = maxRight - item.Width;
            }
            _isDirty = true;
        }

        /// <summary>
        /// 所有选中的Item的垂直方向中心对齐
        /// </summary>
        public void ArrangeItemsVerticalCenter()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            float minTop = paperArea.Height;
            float maxBottom = 0;
            foreach (LayoutItem item in _selectedItems)
            {
                minTop = Math.Min(item.Top, minTop);
                maxBottom = Math.Max(item.Bottom, maxBottom);
            }
            float center = (minTop + maxBottom) / 2;
            foreach (LayoutItem item in _selectedItems)
            {
                item.Top = center - item.Height / 2;
            }
            _isDirty = true;
        }

        /// <summary>
        /// 所有选中的Item的水平方向中心对齐
        /// </summary>
        public void ArrangeItemsHorizontalCenter()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count < 2)
            {
                return;
            }
            float minLeft = paperArea.Width;
            float maxRight = 0;
            foreach (LayoutItem item in _selectedItems)
            {
                minLeft = Math.Min(item.Left, minLeft);
                maxRight = Math.Max(item.Right, maxRight);
            }
            float center = (minLeft + maxRight) / 2;
            foreach (LayoutItem item in _selectedItems)
            {
                item.Left = center - item.Width / 2;
            }
            _isDirty = true;
        }

        /// <summary>
        /// 更改所选Item（Z顺序）的顺序
        /// </summary>
        /// <param name="position">指定的位置MovingPosition的枚举值，Z-顺序</param>
        public void ChangeItemOrder(MovingPosition position)
        {
            if (_layoutMode != LayoutMode.Edit || 0 == _selectedItems.Count)
            {
                return;
            }
            switch (position)
            {
                case MovingPosition.Foremost:
                    ChangeItemsOrderForemost();
                    break;
                case MovingPosition.Aftermost:
                    ChangeItemsOrderAftermost();
                    break;
                case MovingPosition.Front:
                    ChangeItemsOrderFront();
                    break;
                case MovingPosition.Back:
                    ChangeItemsOrderBack();
                    break;
                default:
                    break;
            }
        }

        /// <summary>
        /// 将选定的Item移动到最前面
        /// </summary>
        public void ChangeItemsOrderForemost()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            int count = _selectedItems.Count;
            if (0 < count)
            {
                foreach (LayoutItem item in _selectedItems)
                {
                    paperArea.ShapeContainer.Shapes.SetChildIndex(item.Shape, 0);
                }
                paperArea.ShapeContainer.Refresh();
                _items.Sort(_comparisonItems);
                _isDirty = true;
            }
        }

        /// <summary>
        /// 将选定的Item上移一层
        /// </summary>
        public void ChangeItemsOrderFront()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            int count = _selectedItems.Count;
            if (0 < count)
            {
                int childIndex = paperArea.ShapeContainer.Shapes.
                    GetChildIndex(_selectedItems[count - 1].Shape) - 1;
                childIndex = (childIndex < 0) ? 0 : childIndex;
                foreach (LayoutItem item in _selectedItems)
                {
                    paperArea.ShapeContainer.Shapes.SetChildIndex(item.Shape, childIndex);
                }
                paperArea.ShapeContainer.Refresh();
                _items.Sort(_comparisonItems);
                _isDirty = true;
            }
        }

        /// <summary>
        /// 将选定的Item移动到最后面
        /// </summary>
        public void ChangeItemsOrderBack()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            int count = _selectedItems.Count;
            if (0 < count)
            {
                int childIndex = paperArea.ShapeContainer.Shapes.
                    GetChildIndex(_selectedItems[0].Shape) + 1;
                for (int i = count - 1; 0 <= i; i--)
                {
                    paperArea.ShapeContainer.Shapes.SetChildIndex(_selectedItems[i].Shape, childIndex);
                }
                paperArea.ShapeContainer.Refresh();
                _items.Sort(_comparisonItems);
                _isDirty = true;
            }
        }

        /// <summary>
        /// 将选定的Item下移一层
        /// </summary>
        public void ChangeItemsOrderAftermost()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            int count = _selectedItems.Count;
            if (0 < count)
            {
                for (int i = count - 1; 0 <= i; i--)
                {
                    paperArea.ShapeContainer.Shapes.SetChildIndex(_selectedItems[i].Shape, int.MaxValue);
                }
                paperArea.ShapeContainer.Refresh();
                _items.Sort(_comparisonItems);
                _isDirty = true;
            }
        }

        /// <summary>
        /// 将LayoutBox的Dirty状态修改成false
        /// 接受之前所有的改变
        /// </summary>
        public void AcceptChange()
        {
            this._isDirty = false;
        }

        #endregion Item操作相关

        #region 设置对话框

        /// <summary>
        /// 显示背景设置的对话框
        /// </summary>
        /// <returns>
        /// DialogResult.OK:设置成功<br/>
        /// DialogResult.Cancel:取消设置<br/>
        /// DialogResult.None:LayoutBox不是编辑模式
        /// </returns>
        public DialogResult ShowBackgroundSettingDialog()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return DialogResult.None;
            }
            using (BackgroundSetting backgroundSetting = new BackgroundSetting(this))
            {
                DialogResult result = backgroundSetting.ShowDialog();
                if (result == DialogResult.OK)
                {
                    _backgroundImageName = backgroundSetting.BackgroundImageName;
                    paperArea.BackgroundImage = backgroundSetting.BackgroundImage;
                    _isDirty = true;
                }
                return result;
            }
        }

        /// <summary>
        /// 显示纸张设置的对话框
        /// </summary>
        /// <returns>
        /// DialogResult.OK:设置成功<br/>
        /// DialogResult.Cancel:取消设置<br/>
        /// DialogResult.None:LayoutBox不是编辑模式
        /// </returns>
        public DialogResult ShowPaperPropertyDialog()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return DialogResult.None;
            }
            using (PaperAreaSetting paperSizeSetting = new PaperAreaSetting())
            {
                paperSizeSetting.PaperWidth = _paperWidth;
                paperSizeSetting.PaperHeight = _paperHeight;
                DialogResult result = paperSizeSetting.ShowDialog();
                if (result == DialogResult.OK)
                {
                    SetPaperAreaSize(paperSizeSetting.PaperWidth,
                                    paperSizeSetting.PaperHeight);
                }
                return result;
            }
        }

        /// <summary>
        /// 显示选中Item的属性设置画面
        /// </summary>
        /// <returns>
        /// DialogResult.OK:选中的Item有效，设置成功<br/>
        /// DialogResult.Cancel:选中的Item有效，取消设置<br/>
        /// DialogResult.None:LayoutBox不是编辑模式，或选中的Item不是一个
        /// </returns>
        public DialogResult ShowItemPropertyDialog()
        {
            if (_layoutMode != LayoutMode.Edit || _selectedItems.Count != 1)
            {
                return DialogResult.None;
            }
            LayoutItem item = _selectedItems[0];
            if (item != null)
            {
                return item.ShowItemPropertyDialog();
            }
            return DialogResult.None;
        }
        #endregion 设置对话框

        #region 打印相关
        /// <summary>
        /// 使用打印机已设置的信息进行打印测试
        /// </summary>
        public bool PrintTest()
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return false;
            }
            _printType = PrintType.PrintTest;
            if (CheckPrintSetting())
            {
                DialogResult result = printDialog.ShowDialog(this);
                if (result == DialogResult.OK)
                {
                    printDocument.PrinterSettings.PrinterName = printDialog.PrinterSettings.PrinterName;
                    if (printDocument.PrinterSettings.IsValid)
                    {
                        printDocument.Print();
                        return true;
                    }
                    else
                    {
                        MessageBox.Show(string.Format("打印机名({0}/{1})不正确。"
                                                    , printDocument.PrinterSettings.PrinterName
                                                    , printDialog.PrinterSettings.PrinterName),
                                        "打印失败",
                                        MessageBoxButtons.OK,
                                        MessageBoxIcon.Error,
                                        MessageBoxDefaultButton.Button1);
                        return false;
                    }
                }
            }
            return false;
        }

        /// <summary>
        /// 使用打印机已设置的信息进行打印
        /// </summary>
        public bool Print(bool checkPrintSetting = true)
        {
//#if DEBUG
//            Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
//                   "Print",
//                   "begin",
//                   DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
//                                   Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
//#endif

            _printType = PrintType.Print;
            if (!checkPrintSetting || CheckPrintSetting())
            {
                printDocument.Print();
//#if DEBUG
//                Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
//                       "Print",
//                       "end",
//                       DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
//                                   Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
//#endif
                return true;
            }
            return false;
        }

        /// <summary>
        /// 使用打印机已设置的信息进行分配打印
        /// </summary>
        public bool AllocationPrint()
        {
            _printType = PrintType.AllocationPrint;
            if (CheckPrintSetting())
            {
                printDocument.Print();
                return true;
            }
            return false;
        }

        /// <summary>
        /// 使用打印机已设置的信息进行打印预览
        /// </summary>
        public bool PrintPreview()
        {
            _printType = PrintType.PrintPreview;
            if (CheckPrintSetting())
            {
                //printPreviewDialogEx.WindowState = FormWindowState.Maximized;
                //printPreviewDialogEx.PrintPreviewControl.Columns = 1;
                //printPreviewDialogEx.PrintPreviewControl.Rows = 1;
                //printPreviewDialogEx.PrintPreviewControl.StartPage = 0;
                //printPreviewDialogEx.ShowDialog();

                printPreviewDialog1.WindowState = FormWindowState.Maximized;
                printPreviewDialog1.PrintPreviewControl.Columns = 1;
                printPreviewDialog1.PrintPreviewControl.Rows = 1;
                printPreviewDialog1.PrintPreviewControl.StartPage = 0;
                printPreviewDialog1.ShowDialog();
                return true;
            }
            return false;
        }

        /// <summary>
        /// 使用打印机已设置的信息进行分配打印预览
        /// </summary>
        public bool AllocationPrintPreview()
        {
            _printType = PrintType.AllocationPrintPreview;
            if (CheckPrintSetting())
            {
                //printPreviewDialogEx.WindowState = FormWindowState.Maximized;
                //printPreviewDialogEx.PrintPreviewControl.Columns = 1;
                //printPreviewDialogEx.PrintPreviewControl.Rows = 1;
                //printPreviewDialogEx.PrintPreviewControl.StartPage = 0;
                //printPreviewDialogEx.ShowDialog();

                printPreviewDialog1.WindowState = FormWindowState.Maximized;
                printPreviewDialog1.PrintPreviewControl.Columns = 1;
                printPreviewDialog1.PrintPreviewControl.Rows = 1;
                printPreviewDialog1.PrintPreviewControl.StartPage = 0;
                printPreviewDialog1.ShowDialog();
                return true;
            }
            return false;
        }

        #endregion 打印相关
        #endregion public函数

        #region private函数
        #region 保存、读取相关
        /// <summary>
        /// 创建一个新条码文本Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewQRcodeItem(bool isShowDialog)
        {
            TextItem textItem = new TextItem(null);
            textItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(LayoutCommon.DefaultTextItemSizeWidth,
                                                        LayoutCommon.DefaultTextItemSizeHeight);
            if (isShowDialog)
            {
                using (TextItemSetting itemPropertySetting = new TextItemSetting())
                {
                    itemPropertySetting.IsNew = true;
                    itemPropertySetting.IsDataBinding = false;
                    itemPropertySetting.TextPreview = "1234567890";
                    itemPropertySetting.TextWidth = 25;
                    itemPropertySetting.TextHeight = 25;
                    itemPropertySetting.TextFont = textItem.Font;
                    itemPropertySetting.TextLocationX = newItemLocation.X;
                    itemPropertySetting.TextLocationY = newItemLocation.Y;
                    itemPropertySetting.ItemStyle = ItemStyle.QRCode;
                    itemPropertySetting.ItemName = LayoutBox.ITEMNAME_FIX + _newItemID;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        textItem.Init(this, true);
                        textItem.IsDataBinding = false;
                        textItem.Left = itemPropertySetting.TextLocationX;
                        textItem.Top = itemPropertySetting.TextLocationY;
                        textItem.Width = itemPropertySetting.TextWidth;
                        textItem.Height = itemPropertySetting.TextHeight;
                        textItem.LineSpace = itemPropertySetting.LineSpace;
                        textItem.CharacterSpace = itemPropertySetting.CharacterSpace;
                        textItem.CharacterCount = itemPropertySetting.CharacterCount;
                        textItem.Font = itemPropertySetting.TextFont;
                        textItem.Wrap = itemPropertySetting.Wrap;
                        textItem.TextColor = itemPropertySetting.TextColor;
                        textItem.TextAlign = itemPropertySetting.TextAlign;
                        textItem.TextAlignVertical = itemPropertySetting.TextAlignVertical;
                        textItem.DisplayValue = itemPropertySetting.TextPreview;
                        textItem.ItemStyle = itemPropertySetting.ItemStyle;
                        textItem.TextItemName = itemPropertySetting.ItemName;
                        textItem.Format = itemPropertySetting.TextFormat;
                        textItem.Culture = itemPropertySetting.Culture;
                        textItem.DefaultValue = itemPropertySetting.DefaultValue;
                        textItem.IsNew = false;
                        textItem.PicColumn = false;
                        textItem.PicMargin = itemPropertySetting.chkM.Checked;
                        textItem.FixedRatio = itemPropertySetting.chkFixedRatio.Checked;
                        textItem.SetDrawProperty();
                        return textItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                textItem.Init(this, true);
                textItem.Left = newItemLocation.X;
                textItem.Top = newItemLocation.Y;
                textItem.ItemStyle = ItemStyle.QRCode;
                textItem.Width = 25;
                textItem.Height = 25;
                textItem.DisplayValue = "1234567890";
                textItem.IsNew = false;
                textItem.PicColumn = false;
                textItem.PicMargin = false;
                textItem.FixedRatio = false;
                textItem.SetDrawProperty();
                return textItem;
            }
        }

        /// <summary>
        /// 创建一个新条码文本Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewBarcodeItem(bool isShowDialog)
        {
            TextItem textItem = new TextItem(null);
            textItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(LayoutCommon.DefaultTextItemSizeWidth,
                                                        LayoutCommon.DefaultTextItemSizeHeight);
            if (isShowDialog)
            {
                using (TextItemSetting itemPropertySetting = new TextItemSetting())
                {
                    itemPropertySetting.IsNew = true;
                    itemPropertySetting.IsDataBinding = false;
                    itemPropertySetting.TextPreview = "12345678901";
                    itemPropertySetting.TextWidth = 50;
                    itemPropertySetting.TextHeight = 20;
                    itemPropertySetting.TextFont = textItem.Font;
                    itemPropertySetting.TextLocationX = newItemLocation.X;
                    itemPropertySetting.TextLocationY = newItemLocation.Y;
                    itemPropertySetting.ItemStyle = ItemStyle.Barcode;
                    itemPropertySetting.ItemName = LayoutBox.ITEMNAME_FIX + _newItemID;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        textItem.Init(this, true);
                        textItem.IsDataBinding = false;
                        textItem.Left = itemPropertySetting.TextLocationX;
                        textItem.Top = itemPropertySetting.TextLocationY;
                        textItem.Width = itemPropertySetting.TextWidth;
                        textItem.Height = itemPropertySetting.TextHeight;
                        textItem.LineSpace = itemPropertySetting.LineSpace;
                        textItem.CharacterSpace = itemPropertySetting.CharacterSpace;
                        textItem.CharacterCount = itemPropertySetting.CharacterCount;
                        textItem.Font = itemPropertySetting.TextFont;
                        textItem.Wrap = itemPropertySetting.Wrap;
                        textItem.TextColor = itemPropertySetting.TextColor;
                        textItem.TextAlign = itemPropertySetting.TextAlign;
                        textItem.TextAlignVertical = itemPropertySetting.TextAlignVertical;
                        textItem.DisplayValue = itemPropertySetting.TextPreview;
                        textItem.ItemStyle = itemPropertySetting.ItemStyle;
                        textItem.TextItemName = itemPropertySetting.ItemName;
                        textItem.Format = itemPropertySetting.TextFormat;
                        textItem.Culture = itemPropertySetting.Culture;
                        textItem.DefaultValue = itemPropertySetting.DefaultValue;
                        textItem.IsNew = false;
                        textItem.PicColumn = false;
                        textItem.PicMargin = itemPropertySetting.chkM.Checked;
                        textItem.FixedRatio = itemPropertySetting.chkFixedRatio.Checked;
                        textItem.SetDrawProperty();
                        return textItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                textItem.Init(this, true);
                textItem.Left = newItemLocation.X;
                textItem.Top = newItemLocation.Y;
                textItem.ItemStyle = ItemStyle.Barcode;
                textItem.Width = 50;
                textItem.Height = 20;
                textItem.DisplayValue = "12345678901";
                textItem.IsNew = false;
                textItem.PicColumn = false;
                textItem.PicMargin = false;
                textItem.FixedRatio = false;
                textItem.SetDrawProperty();
                return textItem;
            }
        }

        /// <summary>
        /// 创建一个新文本Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewTextItem(bool isShowDialog)
        {
            TextItem textItem = new TextItem(null);
            textItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(LayoutCommon.DefaultTextItemSizeWidth,
                                                        LayoutCommon.DefaultTextItemSizeHeight);
            if (isShowDialog)
            {
                using (TextItemSetting itemPropertySetting = new TextItemSetting())
                {
                    itemPropertySetting.IsNew = true;
                    itemPropertySetting.IsDataBinding = false;
                    itemPropertySetting.TextFont = textItem.Font;
                    itemPropertySetting.TextLocationX = newItemLocation.X;
                    itemPropertySetting.TextLocationY = newItemLocation.Y;
                    itemPropertySetting.ItemStyle = ItemStyle.Other;
                    itemPropertySetting.ItemName = LayoutBox.ITEMNAME_FIX + _newItemID;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        textItem.Init(this, true);
                        textItem.IsDataBinding = false;
                        textItem.Left = itemPropertySetting.TextLocationX;
                        textItem.Top = itemPropertySetting.TextLocationY;
                        textItem.Width = itemPropertySetting.TextWidth;
                        textItem.Height = itemPropertySetting.TextHeight;
                        textItem.LineSpace = itemPropertySetting.LineSpace;
                        textItem.CharacterSpace = itemPropertySetting.CharacterSpace;
                        textItem.CharacterCount = itemPropertySetting.CharacterCount;
                        textItem.Font = itemPropertySetting.TextFont;
                        textItem.Wrap = itemPropertySetting.Wrap;
                        textItem.TextColor = itemPropertySetting.TextColor;
                        textItem.TextAlign = itemPropertySetting.TextAlign;
                        textItem.TextAlignVertical = itemPropertySetting.TextAlignVertical;
                        textItem.DisplayValue = itemPropertySetting.TextPreview;
                        textItem.ItemStyle = itemPropertySetting.ItemStyle;
                        textItem.TextItemName = itemPropertySetting.ItemName;
                        textItem.Format = itemPropertySetting.TextFormat;
                        textItem.Culture = itemPropertySetting.Culture;
                        textItem.DefaultValue = itemPropertySetting.DefaultValue;
                        textItem.IsNew = false;
                        textItem.SetDrawProperty();
                        return textItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                textItem.Init(this, true);
                textItem.Left = newItemLocation.X;
                textItem.Top = newItemLocation.Y;
                textItem.IsNew = false;
                textItem.SetDrawProperty();
                return textItem;
            }
        }

        /// <summary>
        /// 创建一个新图片Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewImageItem(bool isShowDialog)
        {
            ImageItem imageItem = new ImageItem(null);
            imageItem.IsNew = true;
            openFileDialog.FileName = string.Empty;
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                FileInfo fileInfo = new FileInfo(openFileDialog.FileName);
                // 图片尺寸超过200kbyte
                if (LayoutConsts.FILE_DIALOG_IMAGE_MAX_SIZE < fileInfo.Length)
                {
                    DialogResult dr = MessageBox.Show(
                                    "图片太大，影响显示和打印速度，请准备200KByte以下的图片。",
                                    "LayoutBox",
                                    MessageBoxButtons.YesNo,
                                    MessageBoxIcon.Warning,
                                    MessageBoxDefaultButton.Button1);
                    if (dr == DialogResult.Yes)
                    {
                        return null;
                    }
                }
                Image image = null;
                float imageWidth = LayoutConsts.SHAPE_ITEM_SIZE_DEFAULT_WIDTH;
                float imageHeigh = LayoutConsts.SHAPE_ITEM_SIZE_DEFAULT_HEIGHT;
                if (fileInfo.Length > 0)
                {
                    Stream imageStream = null;
                    try
                    {
                        imageStream = fileInfo.Open(FileMode.Open,
                                                    FileAccess.Read,
                                                    FileShare.ReadWrite | FileShare.Delete);
                        image = Image.FromStream(imageStream);
                        MemoryStream mstream = new MemoryStream();
                        image.Save(mstream, image.RawFormat);
                        image = Image.FromStream(mstream);
                    }
                    finally
                    {
                        if (imageStream != null)
                        {
                            imageStream.Dispose();
                        }
                    }
                    imageWidth = LayoutCommon.PixelToMillimeter(image.Width, _zoom, image.HorizontalResolution);
                    imageHeigh = LayoutCommon.PixelToMillimeter(image.Height, _zoom, image.VerticalResolution);
                }
                else
                {
                    MessageBox.Show("不能设置大小为0的图片。",
                                    "LayoutBox",
                                    MessageBoxButtons.OK,
                                    MessageBoxIcon.Error,
                                    MessageBoxDefaultButton.Button1);
                    return null;
                }
                PointF newItemLocation = GetNewItemLocation(imageWidth, imageHeigh);
                if (isShowDialog)
                {
                    ImageItemSetting itemPropertySetting = new ImageItemSetting();
                    itemPropertySetting.ImageLocationX = newItemLocation.X;
                    itemPropertySetting.ImageLocationY = newItemLocation.Y;
                    itemPropertySetting.ImageWidth = imageWidth;
                    itemPropertySetting.ImageHeight = imageHeigh;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        imageItem.Init(this, true);
                        imageItem.Width = itemPropertySetting.ImageWidth;
                        imageItem.Height = itemPropertySetting.ImageHeight;
                        imageItem.Left = itemPropertySetting.ImageLocationX;
                        imageItem.Top = itemPropertySetting.ImageLocationY;
                        imageItem.SideRatioFixed = itemPropertySetting.SideRatioFixed;
                        imageItem.Image = image;
                        imageItem.FileName = openFileDialog.FileName;
                        imageItem.IsNew = false;
                        imageItem.SetDrawProperty();
                        return imageItem;
                    }
                    else
                    {
                        if (image != null)
                        {
                            image.Dispose();
                        }
                        return null;
                    }
                }
                else
                {
                    if (imageWidth < LayoutConsts.ITEM_SIZE_MIN)
                    {
                        imageWidth = LayoutConsts.ITEM_SIZE_MIN;
                    }
                    else if (LayoutConsts.ITEM_SIZE_WIDTH_MAX < imageWidth)
                    {
                        imageWidth = LayoutConsts.ITEM_SIZE_WIDTH_MAX;
                    }
                    if (imageHeigh < LayoutConsts.ITEM_SIZE_MIN)
                    {
                        imageHeigh = LayoutConsts.ITEM_SIZE_MIN;
                    }
                    else if (LayoutConsts.ITEM_SIZE_HEIGHT_MAX < imageHeigh)
                    {
                        imageHeigh = LayoutConsts.ITEM_SIZE_HEIGHT_MAX;
                    }
                    imageItem.Init(this, true);
                    imageItem.Left = newItemLocation.X;
                    imageItem.Top = newItemLocation.Y;
                    imageItem.Width = imageWidth;
                    imageItem.Height = imageHeigh;
                    imageItem.Image = image;
                    imageItem.FileName = openFileDialog.FileName;
                    imageItem.SideRatioFixed = true;
                    imageItem.IsNew = false;
                    imageItem.SetDrawProperty();
                    return imageItem;
                }
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 创建一个新矩形Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewRectangleItem(bool isShowDialog)
        {
            RectangleItem rectangleItem = new RectangleItem(null);
            rectangleItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(50, 50);
            if (isShowDialog)
            {
                using (GraphicsItemSetting itemPropertySetting = new GraphicsItemSetting())
                {
                    itemPropertySetting.ShapeLocationX = newItemLocation.X;
                    itemPropertySetting.ShapeLocationY = newItemLocation.Y;
                    itemPropertySetting.ShapeWidth = rectangleItem.Width;
                    itemPropertySetting.ShapeHeight = rectangleItem.Height;
                    itemPropertySetting.LineColor = rectangleItem.LineColor;
                    itemPropertySetting.FillColor = rectangleItem.FillColor;
                    itemPropertySetting.LineWidth = rectangleItem.LineWidth;
                    itemPropertySetting.Transparent = rectangleItem.Transparent;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        rectangleItem.Init(this, true);
                        rectangleItem.Left = itemPropertySetting.ShapeLocationX;
                        rectangleItem.Top = itemPropertySetting.ShapeLocationY;
                        rectangleItem.Width = itemPropertySetting.ShapeWidth;
                        rectangleItem.Height = itemPropertySetting.ShapeHeight;
                        rectangleItem.LineColor = itemPropertySetting.LineColor;
                        rectangleItem.FillColor = itemPropertySetting.FillColor;
                        rectangleItem.LineWidth = itemPropertySetting.LineWidth;
                        rectangleItem.Transparent = itemPropertySetting.Transparent;
                        rectangleItem.IsNew = false;
                        rectangleItem.SetDrawProperty();
                        return rectangleItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                rectangleItem.Init(this, true);
                rectangleItem.Left = newItemLocation.X;
                rectangleItem.Top = newItemLocation.Y;
                rectangleItem.IsNew = false;
                rectangleItem.SetDrawProperty();
                return rectangleItem;
            }
        }

        /// <summary>
        /// 创建一个新椭圆Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewEllipseItem(bool isShowDialog)
        {
            EllipseItem ellipseItem = new EllipseItem(null);
            ellipseItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(50, 50);
            if (isShowDialog)
            {
                using (GraphicsItemSetting itemPropertySetting = new GraphicsItemSetting())
                {
                    itemPropertySetting.ShapeLocationX = newItemLocation.X;
                    itemPropertySetting.ShapeLocationY = newItemLocation.Y;
                    itemPropertySetting.ShapeWidth = ellipseItem.Width;
                    itemPropertySetting.ShapeHeight = ellipseItem.Height;
                    itemPropertySetting.LineColor = ellipseItem.LineColor;
                    itemPropertySetting.FillColor = ellipseItem.FillColor;
                    itemPropertySetting.LineWidth = ellipseItem.LineWidth;
                    itemPropertySetting.Transparent = ellipseItem.Transparent;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        ellipseItem.Init(this, true);
                        ellipseItem.Left = itemPropertySetting.ShapeLocationX;
                        ellipseItem.Top = itemPropertySetting.ShapeLocationY;
                        ellipseItem.Width = itemPropertySetting.ShapeWidth;
                        ellipseItem.Height = itemPropertySetting.ShapeHeight;
                        ellipseItem.LineColor = itemPropertySetting.LineColor;
                        ellipseItem.FillColor = itemPropertySetting.FillColor;
                        ellipseItem.LineWidth = itemPropertySetting.LineWidth;
                        ellipseItem.Transparent = itemPropertySetting.Transparent;
                        ellipseItem.IsNew = false;
                        ellipseItem.SetDrawProperty();
                        return ellipseItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                ellipseItem.Init(this, true);
                ellipseItem.Left = newItemLocation.X;
                ellipseItem.Top = newItemLocation.Y;
                ellipseItem.IsNew = false;
                ellipseItem.SetDrawProperty();
                return ellipseItem;
            }
        }

        /// <summary>
        /// 创建一个新表格Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewGridItem(bool isShowDialog)
        {
            GridItem gridItem = new GridItem(null);
            gridItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(50, 50);
            if (isShowDialog)
            {
                using (GridItemSetting itemPropertySetting = new GridItemSetting())
                {
                    itemPropertySetting.ShapeLocationX = newItemLocation.X;
                    itemPropertySetting.ShapeLocationY = newItemLocation.Y;
                    itemPropertySetting.ShapeWidth = gridItem.Width;
                    itemPropertySetting.ShapeHeight = gridItem.Height;
                    itemPropertySetting.LineColor = gridItem.LineColor;
                    itemPropertySetting.FillColor = gridItem.FillColor;
                    itemPropertySetting.LineWidth = gridItem.LineWidth;
                    itemPropertySetting.Transparent = gridItem.Transparent;
                    itemPropertySetting.TitleVisible = gridItem.TitleVisible;
                    itemPropertySetting.AlwaysTitleVisible = gridItem.AlwaysTitleVisible;
                    itemPropertySetting.RowsHeight = gridItem.RowsHeight;
                    itemPropertySetting.HeadRowsHeight = gridItem.HeadRowsHeight;
                    itemPropertySetting.RowsCount = gridItem.DisplayRowCount;
                    itemPropertySetting.Columns = gridItem.Columns.CopyTo();
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        gridItem.Init(this, true);
                        gridItem.Left = itemPropertySetting.ShapeLocationX;
                        gridItem.Top = itemPropertySetting.ShapeLocationY;
                        gridItem.Width = itemPropertySetting.ShapeWidth;
                        gridItem.Height = itemPropertySetting.ShapeHeight;
                        gridItem.LineColor = itemPropertySetting.LineColor;
                        gridItem.FillColor = itemPropertySetting.FillColor;
                        gridItem.LineWidth = itemPropertySetting.LineWidth;
                        gridItem.Transparent = itemPropertySetting.Transparent;
                        gridItem.TitleVisible = itemPropertySetting.TitleVisible;
                        gridItem.AlwaysTitleVisible = itemPropertySetting.AlwaysTitleVisible;
                        gridItem.DisplayRowCount = itemPropertySetting.RowsCount;
                        gridItem.RowsHeight = itemPropertySetting.RowsHeight;
                        gridItem.HeadRowsHeight = itemPropertySetting.HeadRowsHeight;
                        if (itemPropertySetting.ColumnsChanged)
                        {
                            itemPropertySetting.Columns.GridItem = gridItem;
                            gridItem.Columns = itemPropertySetting.Columns;
                        }
                        gridItem.IsNew = false;
                        gridItem.SetDrawProperty();
                        return gridItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                gridItem.Init(this, true);
                gridItem.Left = newItemLocation.X;
                gridItem.Top = newItemLocation.Y;
                gridItem.IsNew = false;
                gridItem.SetDrawProperty();
                return gridItem;
            }
        }

        /// <summary>
        /// 创建一个Grid页码Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewPageNumItem(bool isShowDialog)
        {
            PageNumItem pageNumItem = new PageNumItem(null);
            pageNumItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(50, 50);
            if (isShowDialog)
            {
                using (PageNumItemSetting itemPropertySetting = new PageNumItemSetting())
                {
                    itemPropertySetting.TextLocationX = newItemLocation.X;
                    itemPropertySetting.TextLocationY = newItemLocation.Y;
                    itemPropertySetting.TextWidth = pageNumItem.Width;
                    itemPropertySetting.TextHeight = pageNumItem.Height;
                    itemPropertySetting.TextAlign = pageNumItem.TextAlign;
                    itemPropertySetting.TextAlignVertical = pageNumItem.TextAlignVertical;
                    itemPropertySetting.TextColor = pageNumItem.TextColor;
                    itemPropertySetting.TextFormat = pageNumItem.Format;
                    itemPropertySetting.TextFont = pageNumItem.Font;
                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        pageNumItem.Init(this, true);
                        pageNumItem.Left = itemPropertySetting.TextLocationX;
                        pageNumItem.Top = itemPropertySetting.TextLocationY;
                        pageNumItem.Width = itemPropertySetting.TextWidth;
                        pageNumItem.Height = itemPropertySetting.TextHeight;
                        pageNumItem.Font = itemPropertySetting.TextFont;
                        pageNumItem.TextAlign = itemPropertySetting.TextAlign;
                        pageNumItem.TextAlignVertical = itemPropertySetting.TextAlignVertical;
                        pageNumItem.TextColor = itemPropertySetting.TextColor;
                        pageNumItem.Format = itemPropertySetting.TextFormat;
                        pageNumItem.IsNew = false;
                        pageNumItem.SetDrawProperty();
                        return pageNumItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                pageNumItem.Init(this, true);
                pageNumItem.Left = newItemLocation.X;
                pageNumItem.Top = newItemLocation.Y;
                pageNumItem.IsNew = false;
                pageNumItem.SetDrawProperty();
                return pageNumItem;
            }
        }

        /// <summary>
        /// 创建一个合计文本Item
        /// </summary>
        /// <param name="isShowDialog">是否显示属性设置对话框</param>
        /// <returns>创建的新Item对象</returns>
        private LayoutItem NewTotalTextItem(bool isShowDialog)
        {
            TotalTextItem textItem = new TotalTextItem(null);
            textItem.IsNew = true;
            PointF newItemLocation = GetNewItemLocation(LayoutCommon.DefaultTextItemSizeWidth,
                                                        LayoutCommon.DefaultTextItemSizeHeight);
            if (isShowDialog)
            {
                using (TotalTextItemSetting itemPropertySetting = new TotalTextItemSetting())
                {
                    itemPropertySetting.IsNew = true;
                    itemPropertySetting.IsDataBinding = false;
                    itemPropertySetting.TextFont = textItem.Font;
                    itemPropertySetting.TextLocationX = newItemLocation.X;
                    itemPropertySetting.TextLocationY = newItemLocation.Y;
                    itemPropertySetting.ItemStyle = ItemStyle.Other;
                    itemPropertySetting.ItemName = LayoutBox.ITEMNAME_FIX + _newItemID;

                    itemPropertySetting.NotTotalFont = textItem.NotTotalFont;
                    itemPropertySetting.NotTotalColor = textItem.NotTotalColor;
                    itemPropertySetting.NotTotalValue = textItem.NotTotalValue;
                    itemPropertySetting.NotTotalAlign = textItem.NotTotalAlign;
                    itemPropertySetting.NotTotalAlignVertical = textItem.NotTotalAlignVertical;

                    DialogResult result = itemPropertySetting.ShowDialog();
                    if (result == DialogResult.OK)
                    {
                        textItem.Init(this, true);
                        textItem.IsDataBinding = false;
                        textItem.Left = itemPropertySetting.TextLocationX;
                        textItem.Top = itemPropertySetting.TextLocationY;
                        textItem.Width = itemPropertySetting.TextWidth;
                        textItem.Height = itemPropertySetting.TextHeight;
                        textItem.LineSpace = itemPropertySetting.LineSpace;
                        textItem.CharacterSpace = itemPropertySetting.CharacterSpace;
                        textItem.CharacterCount = itemPropertySetting.CharacterCount;
                        textItem.Font = itemPropertySetting.TextFont;
                        textItem.Wrap = itemPropertySetting.Wrap;
                        textItem.TextColor = itemPropertySetting.TextColor;
                        textItem.TextAlign = itemPropertySetting.TextAlign;
                        textItem.TextAlignVertical = itemPropertySetting.TextAlignVertical;
                        textItem.DisplayValue = itemPropertySetting.TextPreview;
                        textItem.ItemStyle = itemPropertySetting.ItemStyle;
                        textItem.TextItemName = itemPropertySetting.ItemName;
                        textItem.Format = itemPropertySetting.TextFormat;
                        textItem.Culture = itemPropertySetting.Culture;
                        textItem.DefaultValue = itemPropertySetting.DefaultValue;

                        textItem.NotTotalFont = itemPropertySetting.NotTotalFont;
                        textItem.NotTotalColor = itemPropertySetting.NotTotalColor;
                        textItem.NotTotalValue = itemPropertySetting.NotTotalValue;
                        textItem.NotTotalAlign = itemPropertySetting.NotTotalAlign;
                        textItem.NotTotalAlignVertical = itemPropertySetting.NotTotalAlignVertical;

                        textItem.IsNew = false;
                        textItem.SetDrawProperty();
                        return textItem;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            else
            {
                textItem.Init(this, true);
                textItem.Left = newItemLocation.X;
                textItem.Top = newItemLocation.Y;
                textItem.IsNew = false;
                textItem.SetDrawProperty();
                return textItem;
            }
        }

        /// <summary>
        /// 清除LayoutBox的设置
        /// </summary>
        private void ClearLayoutBox()
        {
            // TODO
            if (this._clipboardFormat != null)
            {
                this.ClearClipboard();
                //if (Clipboard.ContainsData(_clipboardFormat.Name))
                //{
                //    CopyToClipboard(_clipboardFormat.Name, null);
                //}
                //_clipboardFormat =
                //    DataFormats.GetFormat(typeof(LayoutItem).FullName
                //                        + "{"
                //                        + Guid.NewGuid().ToString()
                //                        + "}");
            }
            _lastItemRF = RectangleF.Empty;
            _mouseRect = Rectangle.Empty;
            SetDitry(false);
            _selectedItems.Clear();
            foreach (LayoutItem item in _items)
            {
                if (item.Frame != null)
                {
                    item.Frame.Dispose();
                    item.Frame = null;
                }
                item.Selected = false;
                item.Dispose();
            }
            _items.Clear();

            _updateCount = 0;
            _newItemID = 1;
            _paperHeight = 297.0f;
            _paperWidth = 210.0f;
            _backgroundImageName = string.Empty;
            paperArea.BackgroundImage = null;
            _isPrintAreaVisible = true;
            _isPrintBackground = false;
            if (_zoomType != ZoomType.Whole)
            {
                ChangePaperSize();
            }
            else
            {
                InitializeZoom();
            }
        }

        /// <summary>
        /// 初始化LayoutBox
        /// </summary>
        private void InitializeLayoutBox()
        {
            openFileDialog.Filter = LayoutConsts.FILE_DIALOG_IMAGE_FILTER;
            openFileDialog.FilterIndex = 6;
            string directory = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
            if (Directory.Exists(directory))
            {
                openFileDialog.InitialDirectory = directory;
            }
            else
            {
                openFileDialog.InitialDirectory =
                    Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
            }
            _comparisonItems = new Comparison<LayoutItem>(SortItemsWithChildIndex);
            //// TODO
            //if (this._layoutMode == InvoiceLayout.LayoutMode.Edit)
            //{
            //    _clipboardFormat =
            //        DataFormats.GetFormat(typeof(LayoutItem).FullName
            //                            + "{"
            //                            + Guid.NewGuid().ToString()
            //                            + "}");
            //}
            tsmiPaste.Enabled = true;
            _lastItemRF = RectangleF.Empty;
            _mouseRect = Rectangle.Empty;
            _updateCount = 0;
            _newItemID = 1;
            _dataMember = string.Empty;
            _printDataMember = string.Empty;
            //_layoutMode = LayoutMode.Display;
            _paperHeight = 297.0f;
            _paperWidth = 210.0f;
            _zoom = 100;
            _backgroundImageName = string.Empty;
            _isDirty = false;
            _isPrintAreaVisible = true;
            _isPrintBackground = false;
            _selectedItems = new List<LayoutItem>();
            _items = new List<LayoutItem>();
            _zoomType = ZoomType.Specify;
            ChangePaperSize();
            InitItemZoom();
        }

        /// <summary>
        /// 获取新建Item的位置
        /// </summary>
        /// <returns>新建Item的位置</returns>
        private PointF GetNewItemLocation(float itemWidth, float itemHeight)
        {
            PointF newItemLocation = new PointF(LayoutConsts.ITEM_LOCATION_DEF, LayoutConsts.ITEM_LOCATION_DEF);
            if (paperArea.Left < 0)
            {
                newItemLocation.X += LayoutCommon.PixelToMillimeter(Math.Abs(paperArea.Left), _zoom);
            }
            if (paperArea.Top < 0)
            {
                newItemLocation.Y += LayoutCommon.PixelToMillimeter(Math.Abs(paperArea.Top), _zoom);
            }
            return newItemLocation;
        }

        /// <summary>
        /// 复制到剪贴板中
        /// </summary>
        /// <param name="format">格式</param>
        /// <param name="items">选定的Item</param>
        private void CopyToClipboard(object items)
        {
            this.GetCipboardFormat();
            if (this._clipboardFormat != null)
            {
                IDataObject dataObj = new DataObject();
                dataObj.SetData(this._clipboardFormat.Name, false, items);
                Clipboard.SetDataObject(dataObj, false);
            }
        }

        /// <summary>
        /// 获取剪贴板中的数据
        /// </summary>
        /// <param name="format">格式</param>
        /// <returns>Item</returns>
        private object GetFromClipboard()
        {
            this.GetCipboardFormat();
            if (this._clipboardFormat != null)
            {
                if (Clipboard.ContainsData(this._clipboardFormat.Name))
                {
                    return Clipboard.GetData(this._clipboardFormat.Name);
                }
            }
            return null;
        }

        private void ClearClipboard()
        {
            if (this._clipboardFormat != null)
            {
                if (Clipboard.ContainsData(_clipboardFormat.Name))
                {
                    IDataObject dataObj = new DataObject();
                    dataObj.SetData(this._clipboardFormat.Name, false, null);
                    Clipboard.SetDataObject(dataObj, false);
                }
            }
            this._clipboardFormat = null;
        }

        private DataFormats.Format GetCipboardFormat()
        {
            if (_clipboardFormat != null)
            {
                return _clipboardFormat;
            }
            // TODO
            if (this._layoutMode == InvoiceLayout.LayoutMode.Edit)
            {
                _clipboardFormat =
                    DataFormats.GetFormat(typeof(LayoutItem).FullName
                                        + "{"
                                        + Guid.NewGuid().ToString()
                                        + "}");
            }
            return _clipboardFormat;
        }
        #endregion 保存、读取相关

        #region 缩放比例和位置
        /// <summary>
        /// 设置纸张的高和宽
        /// </summary>
        /// <param name="paperWidth">纸张的宽</param>
        /// <param name="paperHeight">纸张的高</param>
        public void SetPaperAreaSize(float paperWidth, float paperHeight)
        {
            if (paperWidth < LayoutConsts.PAPER_SIZE_MIN
                || LayoutConsts.PAPER_SIZE_MAX < paperWidth)
            {
                return;
            }
            if (paperHeight < LayoutConsts.PAPER_SIZE_MIN
                || LayoutConsts.PAPER_SIZE_MAX < paperHeight)
            {
                return;
            }
            if (_paperHeight != paperHeight || _paperWidth != paperWidth)
            {
                foreach (LayoutItem item in _items)
                {
                    if (paperHeight < item.Top + item.Height
                        || paperWidth < item.Left + item.Width)
                    {
                        MessageBox.Show("在纸张范围外有Item，请设置纸张大小包含所有Item",
                                        "LayoutBox",
                                        MessageBoxButtons.OK,
                                        MessageBoxIcon.Error,
                                        MessageBoxDefaultButton.Button1);
                        return;
                    }
                }

                _paperHeight = paperHeight;
                _paperWidth = paperWidth;
                if (_zoomType != ZoomType.Whole)
                {
                    ChangePaperSize();
                }
                else
                {
                    InitializeZoom();
                }
                if (PaperSizeChanged != null)
                {
                    PaperSizeChanged(this, EventArgs.Empty);
                }
                _isDirty = true;
            }
        }

        /// <summary>
        /// 设置所有Item的缩放比例
        /// </summary>
        private void ZoomAllItems()
        {
            InitItemZoom();
            if (0 < _items.Count)
            {
                foreach (LayoutItem item in _items)
                {
                    item.ResetShapeLocationAndSize(false);
                    item.SetDrawProperty();
                }
            }
        }

        /// <summary>
        /// 整页显示
        /// </summary>
        private void InitializeZoom()
        {
            int paperHeight = LayoutCommon.MillimeterToPixel(_paperHeight);
            int paperWidth = LayoutCommon.MillimeterToPixel(_paperWidth);
            int marginHeight = Height - LayoutConsts.LAYOUT_MARGIN - LayoutConsts.LAYOUT_MARGIN;
            int marginWidth = Width - LayoutConsts.LAYOUT_MARGIN - LayoutConsts.LAYOUT_MARGIN;
            double zoomHeight = 100.0 * marginHeight / paperHeight;
            double zoomWidth = 100.0 * marginWidth / paperWidth;
            int zoom = System.Convert.ToInt32(Math.Truncate(Math.Min(zoomHeight, zoomWidth)));
            if (zoom < 0)
            {
                _zoom = 0;
            }
            else
            {
                _zoom = zoom;
            }
            ChangePaperSize();
            ZoomAllItems();
        }

        /// <summary>
        /// 纸张的显示比率
        /// </summary>
        private void ChangePaperSize()
        {
            int width = LayoutCommon.MillimeterToPixel(_paperWidth, _zoom);
            int height = LayoutCommon.MillimeterToPixel(_paperHeight, _zoom);
            paperArea.Size = new Size(width, height);
            AdjustPaperArea();
        }

        /// <summary>
        /// 缩放比例变更
        /// </summary>
        private void InitItemZoom()
        {
            _maxItemLeft = LayoutCommon.MillimeterToPixel(LayoutConsts.ITEM_LOCATION_MAX, _zoom);
            _maxItemTop = _maxItemLeft;
            _maxItemWidth = LayoutCommon.MillimeterToPixel(LayoutConsts.ITEM_SIZE_WIDTH_MAX, _zoom);
            _maxItemHeight = LayoutCommon.MillimeterToPixel(LayoutConsts.ITEM_SIZE_HEIGHT_MAX, _zoom);
            _minItemWidth = LayoutCommon.MillimeterToPixel(LayoutConsts.ITEM_SIZE_MIN, _zoom);
            _minItemHeight = _minItemWidth;
        }

        /// <summary>
        /// 设置纸张范围和位置
        /// </summary>
        private void AdjustPaperArea()
        {
            int top = AdjustPaperAreaTop();
            int left = AdjustPaperAreaLeft();

            paperArea.Location = new Point(left, top);
            lblRightBottomPoint.Location = new Point(paperArea.Right, paperArea.Bottom);
        }

        /// <summary>
        /// 设置纸张位置Y
        /// </summary>
        /// <returns>位置Y</returns>
        private int AdjustPaperAreaTop()
        {
            int margin = paperBox.ClientSize.Height
                - paperArea.Height
                - LayoutConsts.LAYOUT_MARGIN
                - LayoutConsts.LAYOUT_MARGIN;
            if (0 < margin)
            {
                return lblLeftTopPoint.Top + LayoutConsts.LAYOUT_MARGIN + (margin) / 2;
            }
            else
            {
                return lblLeftTopPoint.Top + LayoutConsts.LAYOUT_MARGIN;
            }
        }

        /// <summary>
        /// 设置纸张位置X
        /// </summary>
        /// <returns>位置X</returns>
        private int AdjustPaperAreaLeft()
        {
            int margin = paperBox.ClientSize.Width
                - paperArea.Width
                - LayoutConsts.LAYOUT_MARGIN
                - LayoutConsts.LAYOUT_MARGIN;
            if (0 < margin)
            {
                return lblLeftTopPoint.Left + LayoutConsts.LAYOUT_MARGIN + (margin) / 2;
            }
            else
            {
                return lblLeftTopPoint.Left + LayoutConsts.LAYOUT_MARGIN;
            }
        }
        #endregion 缩放比例和位置

        #region Item操作相关
        /// <summary>
        /// 设置Ditry
        /// </summary>
        /// <param name="vaule"></param>
        private void SetDitry(bool vaule)
        {
            _isDirty = vaule;
        }

        /// <summary>
        /// 计算滚动到指定子控制的偏移
        /// </summary>
        /// <param name="activeControl">滚动显示的子控制</param>
        /// <returns>滚动到指定子控制的偏移</returns>
        protected override Point ScrollToControl(Control activeControl)
        {
            // 选定Item时，滚动条不动
            return DisplayRectangle.Location;
        }

        /// <summary>
        /// 代表一个函数来比较两个相同类型的对象
        /// </summary>
        /// <param name="itemX">第一个比较对象</param>
        /// <param name="itemY">第二个比较对象</param>
        /// <returns>
        /// 小于0 x小于y。
        /// 等于0 x等于y。
        /// 大于0 x大于y。
        /// </returns>
        private int SortItemsWithChildIndex(LayoutItem itemX, LayoutItem itemY)
        {
            try
            {
                int x = paperArea.ShapeContainer.Shapes.GetChildIndex(itemX.Shape);
                int y = paperArea.ShapeContainer.Shapes.GetChildIndex(itemY.Shape);
                return y - x;
            }
            catch
            {
                return 0;
            }
        }

        /// <summary>
        /// 调整拖动范围
        /// </summary>
        /// <param name="p">鼠标所在位置</param>
        private void ResizeToRectangle(Point p)
        {
            Rectangle rect = _mouseRect;
            _mouseRect.Width = p.X - _mouseRect.Left;
            _mouseRect.Height = p.Y - _mouseRect.Top;
            DrawReversibleFrame(_mouseRect);
            DrawReversibleFrame(rect);
        }

        /// <summary>
        /// 显示拖动范围
        /// </summary>
        /// <param name="rect">范围</param>
        internal void DrawReversibleFrame(Rectangle rect)
        {
            ControlPaint.DrawReversibleFrame(paperArea.RectangleToScreen(rect),
                Color.Black, FrameStyle.Dashed);
        }

        /// <summary>
        /// 当前选择的对象已经改变
        /// </summary>
        private void SetTSMIOnSelectionChanged()
        {
            if (0 < _selectedItems.Count)
            {
                tsmiCut.Enabled = true;
                tsmiCopy.Enabled = true;
                tsmiDelete.Enabled = true;
                tsmiOrder.Enabled = true;
                if (_selectedItems.Count == 1)
                {
                    tsmiProperties.Enabled = true;
                    tsmiArrange.Enabled = false;
                }
                else
                {
                    tsmiProperties.Enabled = false;
                    tsmiArrange.Enabled = true;
                }
            }
            else
            {
                tsmiCut.Enabled = false;
                tsmiCopy.Enabled = false;
                tsmiDelete.Enabled = false;
                tsmiProperties.Enabled = false;
                tsmiArrange.Enabled = false;
                tsmiOrder.Enabled = false;
            }
        }

        /// <summary>
        /// 调整Item范围
        /// </summary>
        /// <param name="p">鼠标所在位置</param>
        /// <param name="index">Item索引</param>
        private void ResizeToRectangle(Point p, int index)
        {
            Rectangle rect = _moveRectangles[index];
            if (_isShiftDown)
            {
                // 长宽比例
                double sizeRatio = 1.0 * _downRectangles[index].Height / _downRectangles[index].Width;
                int changedX = Math.Abs(p.X - _startX);
                int changedY = Math.Abs(p.Y - _startY);
                if (Math.Abs(p.X - _startX) < Math.Abs(p.Y - _startY))
                {
                    rect.X = _downRectangles[index].Left;
                    rect.Y = _downRectangles[index].Top + p.Y - _startY;
                }
                else
                {
                    rect.X = _downRectangles[index].Left + p.X - _startX;
                    rect.Y = _downRectangles[index].Top;
                }
                rect.Width = _downRectangles[index].Width;
                rect.Height = _downRectangles[index].Height;
            }
            else if (_isCtrlDown)
            {
                rect.X = _downRectangles[index].Left + p.X - _startX;
                rect.Y = _downRectangles[index].Top + p.Y - _startY;
                rect.Width = _downRectangles[index].Width;
                rect.Height = _downRectangles[index].Height;
            }
            else
            {
                rect.X = _downRectangles[index].Left + p.X - _startX;
                rect.Y = _downRectangles[index].Top + p.Y - _startY;
                rect.Width = _downRectangles[index].Width;
                rect.Height = _downRectangles[index].Height;
            }

            {
                DrawReversibleFrame(_selectedItems[index].ItemLockType, _moveRectangles[index], rect);
            }
            _moveRectangles[index] = rect;
        }

        /// <summary>
        /// 绘制Item移动范围
        /// </summary>
        /// <param name="itemLock">Item锁定状态</param>
        /// <param name="rectOriginal">源范围</param>
        /// <param name="rectCurrent">新范围</param>
        private void DrawReversibleFrame(ItemLock itemLock, Rectangle? rectOriginal, Rectangle? rectCurrent)
        {
            if (itemLock == ItemLock.LockLocationAndSize)
            {
                return;
            }
            if (rectCurrent.HasValue)
            {
                Rectangle rect = rectCurrent.Value;
                rect.Width += 1;
                rect.Height += 1;
                DrawReversibleFrame(rect);
            }
            if (rectOriginal.HasValue && _isMouseMove)
            {
                Rectangle rect = rectOriginal.Value;
                rect.Width += 1;
                rect.Height += 1;
                DrawReversibleFrame(rect);
            }
        }

        /// <summary>
        /// 调整控件的大小
        /// </summary>
        /// <param name="item">Item</param>
        /// <param name="rect">范围</param>
        private void DragHandler(LayoutItem item, Rectangle rect)
        {
            if (item.ItemLockType == ItemLock.LockLocationAndSize)
            {
                return;
            }

            int top = 0;
            int left = 0;
            int width = 0;
            int height = 0;
            if (rect.Width < 0)
            {
                left = rect.Right;
                width -= rect.Width;
            }
            else
            {
                left = rect.Left;
                width = rect.Width;
            }
            if (rect.Height < 0)
            {
                top = rect.Bottom;
                height -= rect.Height;
            }
            else
            {
                top = rect.Top;
                height = rect.Height;
            }
            if (left < 0
                || _maxItemLeft < left
                || top < 0
                || _maxItemTop < top
                || width < _minItemWidth
                || _maxItemWidth < width
                || height < _minItemHeight
                || _maxItemHeight < height
                || paperArea.Width - 1 < left
                || paperArea.Height - 1 < top
                )
            {
                //return;
            }
            item.MoveItem(left, top);
            item.ChangeItemSize(width, height);
            item.ResetItemFrame();
            Dirty = true;
        }
        #endregion Item操作相关

        #region 数据绑定相关
        /// <summary>
        /// 设置数据源
        /// </summary>
        private void SetDataSource()
        {
            if (_dataBinding == null)
            {
                _dataBinding = new LayoutBoxDataBinding(this);
                _dataBinding.SetDataConnection(_dataSource, _dataMember);
            }
            else
            {
                if (_dataBinding.ContainsDataMember(_dataSource))
                {
                    _dataMember = string.Empty;
                }
                _dataBinding.SetDataConnection(_dataSource, _dataMember);
                if (_dataSource == null)
                {
                    _dataBinding = null;
                }
            }
            RefreshItemsBound();
        }

        /// <summary>
        /// 设置数据成员
        /// </summary>
        private void SetDataMember()
        {
            if (_dataBinding == null)
            {
                _dataBinding = new LayoutBoxDataBinding(this);
            }
            _dataBinding.SetDataConnection(_dataSource, _dataMember);
            RefreshItemsBound();
        }

        /// <summary>
        /// 设置打印数据源
        /// </summary>
        private void SetPrintDataSource()
        {
            if (_printDataBinding == null)
            {
                _printDataBinding = new LayoutBoxPrintDataBinding(this);
                _printDataBinding.SetDataConnection(_printDataSource, _printDataMember);
            }
            else
            {
                if (_printDataBinding.ContainsDataMember(_printDataSource))
                {
                    _printDataMember = string.Empty;
                }
                _printDataBinding.SetDataConnection(_printDataSource, _printDataMember);
                if (_printDataSource == null)
                {
                    _printDataBinding = null;
                }
            }
            RefreshItemsPrintBound();
        }

        /// <summary>
        /// 设置打印数据成员
        /// </summary>
        private void SetPrintDataMember()
        {
            if (_printDataBinding == null)
            {
                _printDataBinding = new LayoutBoxPrintDataBinding(this);
            }
            _printDataBinding.SetDataConnection(_printDataSource, _printDataMember);
            RefreshItemsPrintBound();
        }

        /// <summary>
        /// 启动数据更新
        /// </summary>
        private void BeginUpdateInternal()
        {
            if (IsHandleCreated)
            {
                if (_updateCount == 0)
                {
                    SendMessage(new HandleRef(this, Handle), 11, 0, 0);
                }
                _updateCount = (short)(_updateCount + 1);
            }
        }

        /// <summary>
        /// 结束数据更新
        /// </summary>
        private void EndUpdateInternal()
        {
            if (_updateCount <= 0)
            {
                return;
            }
            _updateCount = (short)(_updateCount - 1);
            if (_updateCount == 0)
            {
                SendMessage(new HandleRef(this, Handle), 11, -1, 0);
            }
        }

        /// <summary>
        /// 刷新该项目的数据
        /// </summary>
        private void RefreshItemsCurrentPositionValue()
        {
            bool visible = base.Visible;
            if (visible)
            {
                BeginUpdateInternal();
            }
            try
            {
                if (_dataBinding == null)
                {
                    return;
                }
                foreach (LayoutItem item in _items)
                {
                    if ((item.ItemType == ItemType.Text || item.ItemType == ItemType.TotalText) && _dataBinding != null)
                    {
                        _dataBinding.BoundDataValueToTextItem(item as TextItem);
                    }
                    else
                    {
                        continue;
                    }
                }
            }
            finally
            {
                if (visible)
                {
                    EndUpdateInternal();
                    base.Invalidate(true);
                }
            }
        }

        /// <summary>
        /// 刷新该项目的数据绑定
        /// </summary>
        internal void RefreshItemsBound()
        {
            bool visible = base.Visible;
            if (visible)
            {
                BeginUpdateInternal();
            }
            try
            {
                if (_dataBinding == null)
                {
                    return;
                }
                foreach (LayoutItem item in _items)
                {
                    if ((item.ItemType == ItemType.Text || item.ItemType == ItemType.TotalText) && _dataBinding != null)
                    {
                        _dataBinding.BoundFieldToTextItem(item as TextItem);
                    }
                    else
                    {
                        continue;
                    }
                }
            }
            finally
            {
                if (visible)
                {
                    EndUpdateInternal();
                    base.Invalidate(true);
                }
            }
        }

        /// <summary>
        /// 刷新文本项目的数据绑定
        /// </summary>
        /// <param name="textItem">文本Item</param>
        internal void RefreshTextItemBound(TextItem textItem)
        {
            bool visible = base.Visible;
            if (visible)
            {
                BeginUpdateInternal();
            }
            try
            {
                if (_dataBinding != null)
                {
                    _dataBinding.BoundFieldToTextItem(textItem);
                }
            }
            finally
            {
                if (visible)
                {
                    EndUpdateInternal();
                    base.Invalidate(true);
                }
            }
        }

        /// <summary>
        /// 刷新该项目的打印数据
        /// </summary>
        internal void RefreshItemsCurrentPositionPrintValue()
        {
            bool visible = base.Visible;
            if (visible)
            {
                BeginUpdateInternal();
            }
            try
            {
                if (_printDataBinding == null)
                {
                    return;
                }
                foreach (LayoutItem item in _items)
                {
                    if ((item.ItemType == ItemType.Text || item.ItemType == ItemType.TotalText) && _printDataBinding != null)
                    {
                        _printDataBinding.BoundPrintDataValueToTextItem(item as TextItem);
                    }
                    else
                    {
                        continue;
                    }
                }
            }
            finally
            {
                if (visible)
                {
                    EndUpdateInternal();
                    base.Invalidate(true);
                }
            }
        }

        /// <summary>
        /// 刷新该项目的打印数据绑定
        /// </summary>
        internal void RefreshItemsPrintBound()
        {
            bool visible = base.Visible;
            if (visible)
            {
                BeginUpdateInternal();
            }
            try
            {
                if (_printDataBinding == null)
                {
                    return;
                }
                foreach (LayoutItem item in _items)
                {
                    if ((item.ItemType == ItemType.Text || item.ItemType == ItemType.TotalText) && _printDataBinding != null)
                    {
                        _printDataBinding.BoundPrintFieldToTextItem(item as TextItem);
                    }
                    else
                    {
                        continue;
                    }
                }
            }
            finally
            {
                if (visible)
                {
                    EndUpdateInternal();
                    base.Invalidate(true);
                }
            }
        }

        /// <summary>
        /// 刷新文本项目的打印数据绑定
        /// </summary>
        /// <param name="textItem">文本Item</param>
        internal void RefreshTextItemPrintBound(TextItem textItem)
        {
            bool visible = base.Visible;
            if (visible)
            {
                BeginUpdateInternal();
            }
            try
            {
                if (_printDataBinding != null)
                {
                    _printDataBinding.BoundPrintFieldToTextItem(textItem);
                }
            }
            finally
            {
                if (visible)
                {
                    EndUpdateInternal();
                    base.Invalidate(true);
                }
            }
        }
        #endregion 数据绑定相关

        #region 打印相关
        /// <summary>
        /// 检查打印设置
        /// </summary>
        /// <returns>可以打印true；其他为false</returns>
        public bool CheckPrintSetting()
        {
            // 获取打印机设置非常慢，暂不校验
            return true;
            //string message = this.CheckPrintSettingIn(_printType);
            //if (!string.IsNullOrWhiteSpace(message))
            //{
            //    MessageBox.Show(message,
            //                    "打印失败",
            //                    MessageBoxButtons.OK,
            //                    MessageBoxIcon.Error,
            //                    MessageBoxDefaultButton.Button1);
            //    return false;
            //}
            //return true;
        }

        public string CheckPrintSettingIn(PrintType printType)
        {
            // 获取打印机设置非常慢，暂不校验
            return null;
            /*
            if (System.Drawing.Printing.PrinterSettings.InstalledPrinters.Count < 1)
            {
                return "请安装打印机驱动程序。";
            }
            if (PrinterSettings == null || PrinterSettings.DefaultPageSettings == null)
            {
                return "请设置打印机。";
            }
            if (PaperSize == null)
            {
                return "请设置打印纸张大小。";
            }
            if (!printDocument.PrinterSettings.IsValid)
            {
                return string.Format("打印机名称（{0}/{1}）不正确。"
                                            , printDocument.PrinterSettings.PrinterName
                                            , printDialog.PrinterSettings.PrinterName);
            }
            if (short.MaxValue < _numberOfCopies)
            {
                return string.Format("此打印机一次可以打印的最大份数是{0}，不能打印{1}份。"
                                        , short.MaxValue
                                        , _numberOfCopies);
            }
            if (printType == PrintType.Print || printType == PrintType.PrintPreview)
            {
                if (PrinterSettings.MaximumCopies < _numberOfCopies)
                {
                    return string.Format("此打印机一次可以打印的最大份数是{0}，不能打印{1}份。"
                                                , PrinterSettings.MaximumCopies
                                                , _numberOfCopies);
                }
            }
            else if (printType == PrintType.AllocationPrint || printType == PrintType.AllocationPrintPreview)
            {
                float paperWidth = 0;
                float paperHeight = 0;
                float horizontal = 0;
                float vertical = 0;
                if (_landscape)
                {
                    paperWidth = (float)Math.Round(LayoutCommon.Inch100ToMillimeter(PaperSize.Height), 0);
                    paperHeight = (float)Math.Round(LayoutCommon.Inch100ToMillimeter(PaperSize.Width), 0);
                    horizontal = paperWidth + _allocationHorizontalSpace
                                                 - _marginLeft
                                                 - _marginRight
                                                 - (_allocationHorizontalSpace + _paperWidth)
                                                 * _allocationNumX;
                    vertical = paperHeight + _allocationVerticalSpace
                                                 - _marginTop
                                                 - _marginBottom
                                                 - (_allocationVerticalSpace + _paperHeight)
                                                 * _allocationNumY;
                }
                else
                {
                    paperWidth = (float)Math.Round(LayoutCommon.Inch100ToMillimeter(PaperSize.Width), 0);
                    paperHeight = (float)Math.Round(LayoutCommon.Inch100ToMillimeter(PaperSize.Height), 0);
                    horizontal = paperWidth + _allocationHorizontalSpace
                                                 - _marginLeft
                                                 - _marginRight
                                                 - (_allocationHorizontalSpace + _paperWidth)
                                                 * _allocationNumX;
                    vertical = paperHeight + _allocationVerticalSpace
                                                 - _marginTop
                                                 - _marginBottom
                                                 - (_allocationVerticalSpace + _paperHeight)
                                                 * _allocationNumY;
                }
                if (horizontal < 0 && vertical < 0)
                {
                    return "设置值大于纸张尺寸。请检查纸张横纵个数，间距，和余白。";
                }
                if (horizontal < 0)
                {
                    return string.Format("分配的纸张宽度不能打印{0}列，请确认。"
                                                , _allocationNumX);
                }
                if (vertical < 0)
                {
                    return string.Format("分配的纸张高度不能打印{0}行，请确认。"
                                                , _allocationNumY);
                }
            }
            return null;
            */
        }

        /// <summary>
        /// 打印背景图片
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        private void PrintBackgroundImage(Graphics graphics)
        {
            if (BackgroundImage != null)
            {
                // 背景图片的高宽比例
                float imgWHRate = (float)BackgroundImage.Width / (float)BackgroundImage.Height;
                // 打印纸张的高宽比例
                float paperWHRate = PaperWidth / PaperHeight;

                // 背景图片打印范围
                RectangleF newImgRectangleF = RectangleF.Empty;

                // 缩放背景图片，但保持图片高宽比例
                if (imgWHRate > paperWHRate)
                {
                    newImgRectangleF.Width = PaperWidth;
                    newImgRectangleF.Height = PaperWidth / imgWHRate;
                    newImgRectangleF.X = _allOffsetX;
                    newImgRectangleF.Y = (PaperHeight - newImgRectangleF.Height) / 2 + _allOffsetY;
                }
                else
                {
                    newImgRectangleF.Width = PaperHeight * imgWHRate;
                    newImgRectangleF.Height = PaperHeight;
                    newImgRectangleF.X = (PaperWidth - newImgRectangleF.Width) / 2 + _allOffsetX;
                    newImgRectangleF.Y = _allOffsetY;
                }

                // 在指定的范围绘制背景图片
                graphics.DrawImage(BackgroundImage, newImgRectangleF);
            }
        }

        /// <summary>
        /// 打印文本Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="textItem">文本Item</param>
        private void DrawTextItem(Graphics graphics, TextItem textItem)
        {
            // 文本Item打印范围
            RectangleF rectangleFM = new RectangleF(
                _allOffsetX + textItem.Left,
                _allOffsetY + textItem.Top,
                textItem.Width,
                textItem.Height);

            RectangleF rectangleF = rectangleFM;
            rectangleF.Inflate(0 - LayoutConsts.TEXT_MARGIN, 0 - LayoutConsts.TEXT_MARGIN);
            rectangleFM.Height -= LayoutConsts.TEXT_MARGIN;
            /* Edit For Draw Pic 
            // 在指定的范围绘制文本Item
            LayoutUtility.DrawText(graphics,
                                   rectangleFM,
                                   rectangleF,
                                   textItem.PrintText,
                                   textItem.Font,
                                   textItem.TextColor,
                                   textItem.LineSpace,
                                   textItem.CharacterSpace,
                                   textItem.CharacterCount,
                                   textItem.TextAlign,
                                   textItem.Wrap,
                                   textItem.Clip,
                                   false);
             */
            textItem.DrawTextItem(textItem.PrintDataValue, textItem.PrintBoundField, graphics, rectangleFM, rectangleF, true);
        }

        /// <summary>
        /// 打印图片Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="imageItem">图片Item</param>
        private void DrawImageItem(Graphics graphics, ImageItem imageItem)
        {
            // 图片Item打印范围
            RectangleF rectangleF = new RectangleF(
                _allOffsetX + imageItem.Left,
                _allOffsetY + imageItem.Top,
                imageItem.Width,
                imageItem.Height);
            // 在指定的范围绘制图片Item
            LayoutUtility.DrawImage(graphics, rectangleF, imageItem.Image);
        }

        /// <summary>
        /// 打印矩形Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="rectangleItem">矩形Item</param>
        private void DrawRectangleItem(Graphics graphics, RectangleItem rectangleItem)
        {
            // 矩形Item打印范围
            RectangleF rectangleF = new RectangleF(
                _allOffsetX + rectangleItem.Left,
                _allOffsetY + rectangleItem.Top,
                rectangleItem.Width,
                rectangleItem.Height);
            float lineWidthDraw = rectangleItem.LineWidth;
            // 在指定的范围绘制矩形Item
            LayoutUtility.DrawRectangle(graphics, rectangleF, rectangleItem.LineColor,
                rectangleItem.FillColor, lineWidthDraw, rectangleItem.Transparent);
        }

        /// <summary>
        /// 打印椭圆Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="ellipseItem">椭圆Item</param>
        private void DrawEllipseItem(Graphics graphics, EllipseItem ellipseItem)
        {
            // 椭圆Item打印范围
            RectangleF rectangleF = new RectangleF(
                _allOffsetX + ellipseItem.Left,
                _allOffsetY + ellipseItem.Top,
                ellipseItem.Width,
                ellipseItem.Height);
            float lineWidthDraw = ellipseItem.LineWidth;
            // 在指定的范围绘制椭圆Item
            LayoutUtility.DrawEllipse(graphics, rectangleF, ellipseItem.LineColor,
                ellipseItem.FillColor, lineWidthDraw, ellipseItem.Transparent);
        }

        /// <summary>
        /// 打印表格Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="gridItem">表格Item</param>
        private void DrawGridItem(Graphics graphics, GridItem gridItem)
        {
            // 表格Item打印范围
            RectangleF rectangleF = new RectangleF(
                _allOffsetX + gridItem.Left,
                _allOffsetY + gridItem.Top,
                gridItem.Width,
                gridItem.Height);

            //// 在指定的范围绘制表格Item
            gridItem.DrawGridItem(graphics, rectangleF, 1, _printPageNum);
        }

        /// <summary>
        /// 打印页码Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="pageNumItem">页码Item</param>
        private void DrawPageNumItem(Graphics graphics, PageNumItem pageNumItem)
        {
            // 文本Item打印范围
            RectangleF rectangleFM = new RectangleF(
                 _allOffsetX + pageNumItem.Left,
                _allOffsetY + pageNumItem.Top,
                pageNumItem.Width,
                pageNumItem.Height);

            RectangleF rectangleF = rectangleFM;
            rectangleF.Inflate(0 - LayoutConsts.TEXT_MARGIN, 0 - LayoutConsts.TEXT_MARGIN);
            rectangleFM.Height -= LayoutConsts.TEXT_MARGIN;

            // 在指定的范围绘制文本Item
            LayoutUtility.DrawText(graphics,
                                   rectangleFM,
                                   rectangleF,
                                   pageNumItem.PrintText,
                                   pageNumItem.Font,
                                   pageNumItem.TextColor,
                                   0,
                                   0,
                                   0,
                                   pageNumItem.TextAlign,
                                   pageNumItem.TextAlignVertical,
                                   false,
                                   false,
                                   false);
        }

        /// <summary>
        /// 打印合计Item
        /// </summary>
        /// <param name="graphics">用于绘制的System.Drawing.Graphics</param>
        /// <param name="totalTextItem">合计Item</param>
        private void DrawTotalTextItem(Graphics graphics, TotalTextItem totalTextItem)
        {
            // 文本Item打印范围
            RectangleF rectangleFM = new RectangleF(
                _allOffsetX + totalTextItem.Left,
                _allOffsetY + totalTextItem.Top,
                totalTextItem.Width,
                totalTextItem.Height);

            RectangleF rectangleF = rectangleFM;
            rectangleF.Inflate(0 - LayoutConsts.TEXT_MARGIN, 0 - LayoutConsts.TEXT_MARGIN);
            rectangleFM.Height -= LayoutConsts.TEXT_MARGIN;

            if (PrintPageNum != TotalPageNum)
            {
                LayoutUtility.DrawText(graphics,
                                       rectangleFM,
                                       rectangleF,
                                       totalTextItem.NotTotalValue,
                                       totalTextItem.NotTotalFont,
                                       totalTextItem.NotTotalColor,
                                       totalTextItem.LineSpace,
                                       totalTextItem.CharacterSpace,
                                       totalTextItem.CharacterCount,
                                       totalTextItem.NotTotalAlign,
                                       totalTextItem.NotTotalAlignVertical,
                                       totalTextItem.Wrap,
                                       totalTextItem.Clip,
                                       false);
                return;
            }
            // 在指定的范围绘制文本Item
            string text = totalTextItem.ResetTextValue(totalTextItem.PrintDataValue, totalTextItem.BoundField.IsDataBound) as string;
            LayoutUtility.DrawText(graphics,
                                   rectangleFM,
                                   rectangleF,
                                   text,
                                   totalTextItem.Font,
                                   totalTextItem.TextColor,
                                   totalTextItem.LineSpace,
                                   totalTextItem.CharacterSpace,
                                   totalTextItem.CharacterCount,
                                   totalTextItem.TextAlign,
                                   totalTextItem.NotTotalAlignVertical,
                                   totalTextItem.Wrap,
                                   totalTextItem.Clip,
                                   false);
        }
        #endregion 打印相关

        #region 事件
        /// <summary>
        /// 当一个项目被改变，移动，添加或删除引发此事件。
        /// </summary>
        /// <param name="layoutItem">Item</param>
        /// <param name="itemChangeType">变更类型</param>
        internal void SetItemChangedArgs(LayoutItem layoutItem, ItemChangeType itemChangeType)
        {
            if (ItemChanged != null && !layoutItem.IsNew)
            {
                ItemChangedEventArgs e = new ItemChangedEventArgs();
                e.Item = layoutItem;
                e.ChangedType = itemChangeType;
                e.ItemID = layoutItem.ID;
                _isDirty = true;
                ItemChanged(this, e);
            }
            if (itemChangeType != ItemChangeType.Deleted)
            {
                layoutItem.Shape.Refresh();
            }
            else
            {
                if (layoutItem.ItemType == ItemType.Grid)
                {
                    this.OneGridItem = null;
                }
            }
        }

        /// <summary>
        /// 当一个项目被改变，移动，添加或删除引发此事件。
        /// </summary>
        /// <param name="layoutItem">Item</param>
        /// <param name="itemChangeType">变更类型</param>
        /// <param name="property">属性</param>
        internal void SetItemChangedArgs(LayoutItem layoutItem, ItemChangeType itemChangeType, string property)
        {
            if (ItemChanged != null && !layoutItem.IsNew)
            {
                ItemChangedEventArgs e = new ItemChangedEventArgs();
                e.Item = layoutItem;
                e.ChangedType = itemChangeType;
                e.ItemID = layoutItem.ID;
                e.Property = property;
                _isDirty = true;
                ItemChanged(this, e);
            }
            if (itemChangeType != ItemChangeType.Deleted)
            {
                layoutItem.Shape.Refresh();
            }
            else
            {
                if (layoutItem.ItemType == ItemType.Grid)
                {
                    this.OneGridItem = null;
                }
            }
        }

        /// <summary>
        /// 项目的选择状态改变时引发此事件。
        /// </summary>
        /// <param name="layoutItem">Item</param>
        /// <param name="isSelect">选择状态</param>
        internal void SetItemSelectionChangedArgs(LayoutItem layoutItem, bool isSelect)
        {
            SetTSMIOnSelectionChanged();
            if (ItemSelectionChanged != null && !layoutItem.IsNew)
            {
                ItemSelectionChangedEventArgs e = new ItemSelectionChangedEventArgs();
                e.Item = layoutItem;
                e.IsSelected = isSelect;
                e.ItemID = layoutItem.ID;
                ItemSelectionChanged(this, e);
            }
        }

        /// <summary>
        /// 打印或显示数据之前引发此事件。
        /// </summary>
        /// <param name="layoutItem">Item</param>
        /// <param name="value">数据</param>
        /// <param name="format">格式</param>
        /// <returns>e.Result格式化后结果</returns>
        internal object SetItemValueFormattingArgs(LayoutItem layoutItem, object value, string format)
        {
            if (ItemValueFormatting != null && !layoutItem.IsNew)
            {
                ItemValueFormattingEventArgs e = new ItemValueFormattingEventArgs();
                e.Item = layoutItem;
                e.ItemID = layoutItem.ID;
                e.Value = value;
                e.Format = format;
                ItemValueFormatting(this, e);
                return e.Result;
            }
            return null;
        }


        internal void SetUserChangedGridItemArgs(GridItem gItem, CollectionChangeEventArgs e)
        {
            if (this.UserChangedGridItem != null)
            {
                this.UserChangedGridItem(gItem, e);
            }
        }
        #endregion　事件

        #endregion private函数

        #region 事件处理
        #region 缩放比例和位置
        /// <summary>
        /// 调整纸张大小
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void PaperBox_SizeChanged(object sender, EventArgs e)
        {
            if (_zoomType == ZoomType.Whole)
            {
                InitializeZoom();
            }
            else
            {
                AdjustPaperArea();
            }
        }
        #endregion 缩放比例和位置

        #region 右键菜单
        /// <summary>
        /// 打开右键菜单
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void contextMenu_Opening(object sender, CancelEventArgs e)
        {
            //SetTSMIOnSelectionChanged();
            tsmiPaste.Enabled = (_clipboardFormat != null && Clipboard.ContainsData(_clipboardFormat.Name));
        }

        /// <summary>
        /// 打开对齐右键菜单
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void contextMenuArrange_Opening(object sender, CancelEventArgs e)
        {
            e.Cancel = !tsmiArrange.Enabled;
        }

        /// <summary>
        /// 打开排序右键菜单
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void contextMenuOrder_Opening(object sender, CancelEventArgs e)
        {
            e.Cancel = !tsmiOrder.Enabled;
        }

        /// <summary>
        /// 关闭右键菜单
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void contextMenu_Closing(object sender, ToolStripDropDownClosingEventArgs e)
        {
            tsmiPaste.Enabled = true;
        }

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiDelete_Click(object sender, EventArgs e)
        {
            DeleteItem();
        }

        /// <summary>
        /// 属性
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiProperties_Click(object sender, EventArgs e)
        {
            ShowItemPropertyDialog();
        }

        /// <summary>
        /// 选择全部Item
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiAllSelect_Click(object sender, EventArgs e)
        {
            SelectItemsMultiple(_items.ToArray(), true);
        }

        /// <summary>
        /// 纸张大小
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiPaperSize_Click(object sender, EventArgs e)
        {
            ShowPaperPropertyDialog();
        }

        /// <summary>
        /// 背景图片
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiBackgroundImage_Click(object sender, EventArgs e)
        {
            ShowBackgroundSettingDialog();
        }

        /// <summary>
        /// 打开缩放比例右键菜单
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void contextMenuZoom_Opening(object sender, CancelEventArgs e)
        {
            tsmiZoom500.Checked = false;
            tsmiZoom200.Checked = false;
            tsmiZoom100.Checked = false;
            tsmiZoom75.Checked = false;
            tsmiZoom50.Checked = false;
            tsmiZoom33.Checked = false;
            tsmiZoom25.Checked = false;
            tsmiZoom10.Checked = false;
            tsmiZoomWhole.Checked = false;
            switch (_zoom)
            {
                case 500:
                    tsmiZoom500.Checked = true;
                    break;
                case 200:
                    tsmiZoom200.Checked = true;
                    break;
                case 100:
                    tsmiZoom100.Checked = true;
                    break;
                case 75:
                    tsmiZoom75.Checked = true;
                    break;
                case 50:
                    tsmiZoom50.Checked = true;
                    break;
                case 33:
                    tsmiZoom33.Checked = true;
                    break;
                case 25:
                    tsmiZoom25.Checked = true;
                    break;
                case 10:
                    tsmiZoom10.Checked = true;
                    break;
                default:
                    tsmiZoomWhole.Checked = true;
                    break;
            }
        }

        /// <summary>
        /// 缩放比例
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiZoom_Click(object sender, EventArgs e)
        {
            ToolStripMenuItem itemZoom = sender as ToolStripMenuItem;
            if (itemZoom == null)
            {
                return;
            }

            int zoom = System.Convert.ToInt32(itemZoom.Tag);
            if (zoom > 0)
            {
                Zoom = zoom;
            }
            else
            {
                ZoomType = ZoomType.Whole;
            }
        }

        /// <summary>
        /// 置于顶层
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiForemost_Click(object sender, EventArgs e)
        {
            ChangeItemsOrderForemost();
        }

        /// <summary>
        /// 上移一层
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiFront_Click(object sender, EventArgs e)
        {
            ChangeItemsOrderFront();
        }

        /// <summary>
        /// 下移一层
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiBack_Click(object sender, EventArgs e)
        {
            ChangeItemsOrderBack();
        }

        /// <summary>
        /// 置于底层
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiAftermost_Click(object sender, EventArgs e)
        {
            ChangeItemsOrderAftermost();
        }

        /// <summary>
        /// 顶端对齐
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiTop_Click(object sender, EventArgs e)
        {
            ArrangeItemsTop();
        }

        /// <summary>
        /// 底端对齐
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiBottom_Click(object sender, EventArgs e)
        {
            ArrangeItemsBottom();
        }

        /// <summary>
        /// 垂直居中对齐
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiVerticalCenter_Click(object sender, EventArgs e)
        {
            ArrangeItemsVerticalCenter();
        }

        /// <summary>
        /// 右侧对齐
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiRight_Click(object sender, EventArgs e)
        {
            ArrangeItemsRight();
        }

        /// <summary>
        /// 左侧对齐
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiLeft_Click(object sender, EventArgs e)
        {
            ArrangeItemsLeft();
        }

        /// <summary>
        /// 水平居中对齐
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiHorizontalCenter_Click(object sender, EventArgs e)
        {
            ArrangeItemsHorizontalCenter();
        }

        /// <summary>
        /// 剪切
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiCut_Click(object sender, EventArgs e)
        {
            CutItem();
        }

        /// <summary>
        /// 复制
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiCopy_Click(object sender, EventArgs e)
        {
            CopyItem();
        }

        /// <summary>
        /// 粘贴
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void tsmiPaste_Click(object sender, EventArgs e)
        {
            PasteItem();
        }
        #endregion 右键菜单

        #region Item操作相关
        /// <summary>
        /// Item选择边框失去焦点时发生。
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void RectTracker_LostFocus(object sender, EventArgs e)
        {
            if (_moveRectangles != null && _isMouseMove)
            {
                //if (!_isRealFollow)
                {
                    int count = _moveRectangles.Length;
                    for (int i = 0; i < count; i++)
                    {
                        DrawReversibleFrame(_selectedItems[i].ItemLockType, _moveRectangles[i], null);
                    }
                }
                _isMouseDown = false;
                _isMouseMove = false;
                _moveRectangles = null;
            }
        }

        /// <summary>
        /// Item选择边框 KeyDown事件
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void RectTracker_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.ShiftKey && !_isShiftDown)
            {
                _isShiftDown = true;
            }
            else if (e.KeyCode == Keys.ControlKey && !_isCtrlDown)
            {
                _isCtrlDown = true;
            }
            else
            {
                return;
            }
            if (_isMouseMove)
            {
                int count = _moveRectangles.Length;
                for (int i = 0; i < count; i++)
                {
                    ResizeToRectangle(new Point(_mouseMoveX, _mouseMoveY), i);
                }
            }
        }

        /// <summary>
        /// Item选择边框 KeyUp事件
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void RectTracker_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.ShiftKey)
            {
                _isShiftDown = false;
            }
            else if (e.KeyCode == Keys.ControlKey)
            {
                _isCtrlDown = false;
            }
            else
            {
                return;
            }
            if (_isMouseMove)
            {
                int count = _moveRectangles.Length;
                for (int i = 0; i < count; i++)
                {
                    ResizeToRectangle(new Point(_mouseMoveX, _mouseMoveY), i);
                }
            }
        }

        /// <summary>
        /// Item选择边框 MouseDown事件
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void RectTracker_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                if (ItemShapeContainer.ClientRectangle.Contains(e.Location))
                {
                    _startX = e.X;
                    _startY = e.Y;
                    _mouseMoveX = e.X;
                    _mouseMoveY = e.Y;

                    int count = _selectedItems.Count;
                    _downRectangles = new Rectangle[count];
                    _moveRectangles = new Rectangle[count];
                    for (int i = 0; i < count; i++)
                    {
                        _downRectangles[i] = _selectedItems[i].ShapeBounds;
                        _moveRectangles[i] = _downRectangles[i];
                    }
                    _isMouseDown = true;
                    Cursor.Current = Cursors.SizeAll;
                }
            }
        }

        /// <summary>
        /// Item选择边框 MouseMove事件
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void RectTracker_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left && _isMouseDown)
            {
                Cursor.Current = Cursors.SizeAll;
                int mx = e.X;
                int my = e.Y;

                if (_mouseMoveX != mx || _mouseMoveY != my)
                {
                    int count = _moveRectangles.Length;
                    for (int i = 0; i < count; i++)
                    {
                        ResizeToRectangle(new Point(mx, my), i);
                    }
                    _isMouseMove = true;
                    _mouseMoveX = mx;
                    _mouseMoveY = my;
                }
            }
        }

        /// <summary>
        /// Item选择边框 MouseUp事件
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void RectTracker_MouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left && _isMouseDown)
            {
                if (_isMouseMove)
                {
                    Capture = false;
                    int count = _moveRectangles.Length;
                    for (int i = 0; i < count; i++)
                    {
                        DrawReversibleFrame(_selectedItems[i].ItemLockType, _moveRectangles[i], null);
                        DragHandler(_selectedItems[i], _moveRectangles[i]);
                    }
                }
                _isMouseDown = false;
                _isMouseMove = false;
                _moveRectangles = null;
            }
        }

        /// <summary>
        /// 鼠标在纸张范围内移动
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void paperArea_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left && _layoutMode == LayoutMode.Edit)
            {
                if (_isMouseDownInPaperArea)
                {
                    _mouseRect.X = e.X;
                    _mouseRect.Y = e.Y;
                    _isMouseDownInPaperArea = false;
                    _isMouseMoveInPaperArea = true;
                }
                else if (_isMouseMoveInPaperArea)
                {
                    ResizeToRectangle(e.Location);
                }
            }
        }

        /// <summary>
        /// 鼠标在纸张范围内抬起
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void paperArea_MouseUp(object sender, MouseEventArgs e)
        {
            if (_layoutMode != LayoutMode.Edit || e.Button != MouseButtons.Left)
            {
                return;
            }

            if (_isMouseMoveInPaperArea)
            {
                Capture = false;
                DrawReversibleFrame(_mouseRect);
                bool isChanging = false;
                if (Items.Count > 0)
                {
                    if (_mouseRect.Height > 0 && _mouseRect.Width > 0)
                    {
                        //_mouseRect.X = _mouseRect.X - paperArea.Left;
                        //_mouseRect.Y = _mouseRect.Y - paperArea.Top;
                    }
                    else if (_mouseRect.Height <= 0 && _mouseRect.Width > 0)
                    {
                        //_mouseRect.X = _mouseRect.X - paperArea.Left;
                        _mouseRect.Y = e.Y;
                        _mouseRect.Height = Math.Abs(_mouseRect.Height);
                        //_mouseRect.Width = Math.Abs(_mouseRect.Width);
                    }
                    else if (_mouseRect.Height > 0 && _mouseRect.Width <= 0)
                    {
                        _mouseRect.X = e.X;
                        //_mouseRect.Y = _mouseRect.Y - paperArea.Top;
                        _mouseRect.Width = Math.Abs(_mouseRect.Width);
                    }
                    else if (_mouseRect.Height <= 0 && _mouseRect.Width <= 0)
                    {
                        _mouseRect.X = e.X;
                        _mouseRect.Y = e.Y;
                        _mouseRect.Height = Math.Abs(_mouseRect.Height);
                        _mouseRect.Width = Math.Abs(_mouseRect.Width);
                    }
                    ItemSelectionChanging = true;
                    if (Control.ModifierKeys == Keys.Control)
                    {
                        foreach (LayoutItem item in _items)
                        {
                            if (item.BoundsContainsBy(_mouseRect))
                            {
                                SelectItemMultiple(item, !item.Selected, ref isChanging);
                            }
                        }
                    }
                    else if (Control.ModifierKeys == Keys.Shift)
                    {
                        foreach (LayoutItem item in _items)
                        {
                            if (item.BoundsContainsBy(_mouseRect))
                            {
                                SelectItemMultiple(item, true, ref isChanging);
                            }
                        }
                    }
                    else
                    {
                        foreach (LayoutItem item in _items)
                        {
                            //if (item.BoundsContainsBy(_mouseRect))
                            //{
                            //    SelectItemMultiple(item, true, ref isChanging);
                            //}
                            //else
                            //{
                            //    SelectItemMultiple(item, false, ref isChanging);
                            //}
                            bool isSelet = false;
                            if (item.ShapeBounds.Height <= 1 ||
                                item.ShapeBounds.Width <= 1)
                            {
                                isSelet = item.IntersectsWith(_mouseRect);
                            }
                            else
                            {
                                isSelet = item.BoundsContainsBy(_mouseRect);
                            }
                            SelectItemMultiple(item, isSelet, ref isChanging);
                        }
                    }
                }
                ItemSelectionChanging = false;
                if (isChanging)
                {
                    if (UserSelectionChanged != null)
                    {
                        UserSelectionChanged(this, EventArgs.Empty);
                    }
                }
                _isMouseMoveInPaperArea = false;
                _mouseRect = Rectangle.Empty;
            }
        }

        /// <summary>
        /// 鼠标在纸张范围内按下
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void paperArea_MouseDown(object sender, MouseEventArgs e)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            if (e.Button == MouseButtons.Left)
            {
                _isMouseDownInPaperArea = true;
                _isMouseMoveInPaperArea = false;
            }
        }

        /// <summary>
        /// 鼠标在纸张范围内点击
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void paperArea_Click(object sender, EventArgs e)
        {
            if (_layoutMode != LayoutMode.Edit)
            {
                return;
            }
            // 选择状态全部解除
            if (Control.ModifierKeys == Keys.Control || Control.ModifierKeys == Keys.Shift)
            {
                return;
            }
            ClearSelection();
            paperArea.Focus();
        }
        #endregion Item操作相关

        #region 打印相关

        //private PageSettings _defaultPageSettings = null;
        //private PaperSize _defaultPaperSize = null;
        //private RectangleF _defaultPrintableArea = RectangleF.Empty;

        /// <summary>
        /// 打印开始。
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void printDocument_BeginPrint(object sender, PrintEventArgs e)
        {
//#if DEBUG
//            Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
//                   "printDocument_BeginPrint",
//                   "begin",
//                   DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
//                                   Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
//#endif

            // 选定打印页码 modify by chenxy 2014-03-27 begin
            //if (PrinterSettings.PrintRange == PrintRange.SomePages)
            //{
            //    if (PrinterSettings.ToPage == 0 || TotalPageNum < PrinterSettings.FromPage)
            //    {
            //        e.Cancel = true;
            //        return;
            //    }
            //}
            // 选定打印页码 modify by chenxy 2014-03-27 end

            //if (_numberOfCopies < 1 || !CheckPrintSetting())
            //{
            //    e.Cancel = true;
            //    return;
            //}

            // 获取打印机配置非常慢，
            //_defaultPageSettings = PrinterSettings.DefaultPageSettings;
            //_defaultPaperSize = _defaultPageSettings.PaperSize;
            //_defaultPrintableArea = _defaultPageSettings.PrintableArea;

            // 页面左上点的坐标（1/100英寸）
            if (_printAction == PrintAction.PrintToPreview)
            {
                _printerOffsetX = 0;
                _printerOffsetY = 0;
                _allOffsetX = _printOffsetX;
                _allOffsetY = _printOffsetY;
            }
            else
            {
                //if (_landscape)
                //{
                //    _printerOffsetX = LayoutCommon.Inch100ToMillimeter(_defaultPaperSize.Height - _defaultPrintableArea.Bottom);
                //    _printerOffsetY = LayoutCommon.Inch100ToMillimeter(_defaultPrintableArea.Left);
                //}
                //else
                //{
                //    _printerOffsetX = LayoutCommon.Inch100ToMillimeter(_defaultPrintableArea.Left);
                //    _printerOffsetY = LayoutCommon.Inch100ToMillimeter(_defaultPrintableArea.Top);
                //}
                _allOffsetX = _printOffsetX - _printerOffsetX;
                _allOffsetY = _printOffsetY - _printerOffsetY;
            }

            _rectangleFGreed = RectangleF.Empty;
            _printPageNum = 1;

            if (_printType == PrintType.PrintTest)
            {
                //printDocument.PrinterSettings.Copies = 1;
            }
            else if (_printType == PrintType.Print || _printType == PrintType.PrintPreview)
            {
                if (_printDataBinding != null && _printDataBinding.BindingSource != null && 0 < _printDataBinding.BindingSource.Count)
                {
                    _printDataBinding.BindingSource.MoveFirst();
                    _printDataTotal = _printDataBinding.BindingSource.Count * _numberOfCopies;
                }
                else
                {
                    _printDataTotal = _numberOfCopies;
                }
                _printDataPosition = 0;
                _printDataCopies = 0;
                //if (_printType == PrintType.Print)
                if (_printAction == PrintAction.PrintToPrinter)
                {
                    printDocument.PrinterSettings.Copies = (short)_numberOfCopies;
                }
                else
                {
                    printDocument.PrinterSettings.Copies = 1;
                }
            }
            else if (_printType == PrintType.AllocationPrint || _printType == PrintType.AllocationPrintPreview)
            {
                if (_printDataBinding != null && _printDataBinding.BindingSource != null && 0 < _printDataBinding.BindingSource.Count)
                {
                    _printDataBinding.BindingSource.MoveFirst();
                    _printDataTotal = _printDataBinding.BindingSource.Count * _numberOfCopies;
                }
                else
                {
                    _printDataTotal = _numberOfCopies;
                }
                _printDataPosition = 0;
                _printDataCopies = 0;
                _allocationNum = _allocationNumY * _allocationNumX;
                _printDataTotal = _printDataTotal + _allocationSkipCount;
                printDocument.PrinterSettings.Copies = 1;
            }
            else
            {
                printDocument.PrinterSettings.Copies = 1;
            }
//#if DEBUG
//            Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
//                   "printDocument_BeginPrint",
//                   "end",
//                   DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
//                                   Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
//#endif
        }

        // 选定打印页码 modify by chenxy 2014-03-27 begin
        /// <summary>
        /// 打印每页
        /// </summary>
        /// <param name="sender">指定的对象</param>
        /// <param name="e">提供的事件数据</param>
        private void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
        {
//#if DEBUG
//            Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
//                   "PrintDocument_PrintPage",
//                   "begin",
//                   DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
//                                   Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
//#endif
            /*
            if (PrinterSettings.PrintRange == PrintRange.SomePages)
            {
                bool isPrintCurrentPage = false;

                do
                {
                    if (_printPageNum < PrinterSettings.FromPage)
                    {
                        isPrintCurrentPage = false;
                    }
                    else if (PrinterSettings.ToPage < _printPageNum)
                    {
                        isPrintCurrentPage = false;
                        e.HasMorePages = false;
                        e.Cancel = true;
                        return;
                    }
                    else
                    {
                        isPrintCurrentPage = true;
                    }

                    if (isPrintCurrentPage)
                    {
                        e.Cancel = false;

                        this.PrintPage(e);

                        if (_printPageNum - 1 == PrinterSettings.ToPage)
                        {
                            e.HasMorePages = false;
                        }
                    }
                    else
                    {
                        e.Cancel = true;

                        if (_printType == PrintType.PrintTest)
                        {
                            e.HasMorePages = false;
                            return;
                        }
                        else if (_printType == PrintType.Print || _printType == PrintType.PrintPreview)
                        {
                            // 表格Item是否有下一页
                            if (_printPageNum < TotalPageNum)
                            {
                                _printPageNum++;
                                e.HasMorePages = true;
                                //return;
                            }
                            else
                            {
                                if (_printAction == PrintAction.PrintToPrinter)
                                {
                                    // 纸张数是否增加判断
                                    if (_printDataBinding != null && _printDataBinding.BindingSource != null && 0 < _printDataBinding.BindingSource.Count)
                                    {
                                        if (_printDataBinding.BindingSource.Position + 1 < _printDataBinding.BindingSource.Count)
                                        {
                                            // 打印数据源下移一条记录
                                            _printDataBinding.BindingSource.MoveNext();
                                            _printPageNum = 1;
                                            e.HasMorePages = true;
                                        }
                                        else
                                        {
                                            e.HasMorePages = false;
                                            return;
                                        }
                                    }
                                    else
                                    {
                                        e.HasMorePages = false;
                                        return;
                                    }
                                }
                                else
                                {
                                    // 纸张数是否增加判断
                                    if (++_printDataPosition < _printDataTotal)
                                    {
                                        _printPageNum = 1;
                                        e.HasMorePages = true;
                                        // 同一数据一次印刷/分批印刷
                                        if (true)
                                        {
                                            // 同一数据一次印刷
                                            if (++_printDataCopies < _numberOfCopies)
                                            {
                                                return;
                                            }
                                            else
                                            {
                                                _printDataCopies = 0;
                                            }
                                        }
                                    }
                                    else
                                    {
                                        e.HasMorePages = false;
                                        return;
                                    }

                                    if (_printDataBinding != null && _printDataBinding.BindingSource != null && 0 < _printDataBinding.BindingSource.Count)
                                    {
                                        // 打印数据源下移一条记录
                                        if (_printDataBinding.BindingSource.Position + 1 < _printDataBinding.BindingSource.Count)
                                        {
                                            _printDataBinding.BindingSource.MoveNext();
                                        }
                                        else
                                        {
                                            _printDataBinding.BindingSource.MoveFirst();
                                        }
                                    }
                                }
                            }
                        }
                        else if (_printType == PrintType.AllocationPrint || _printType == PrintType.AllocationPrintPreview)
                        {
                            int allocationIndex = -1;
                            // 一张纸打印
                            for (int i = 0; i < _allocationNum; i++)
                            {
                                allocationIndex++;
                                if (_printDataPosition < _allocationSkipCount)
                                {
                                    // 跳过的打印位置
                                    e.HasMorePages = true;
                                    continue;
                                }

                                // 表格Item是否有下一页
                                if (_printPageNum < TotalPageNum)
                                {
                                    _printPageNum++;
                                    continue;
                                }

                                // 纸张数是否增加判断
                                if (++_printDataPosition < _printDataTotal)
                                {
                                    _printPageNum = 1;
                                    e.HasMorePages = true;
                                    // 同一数据一次印刷/分批印刷
                                    if (true)
                                    {
                                        // 同一数据一次印刷
                                        if (++_printDataCopies < _numberOfCopies)
                                        {
                                            continue;
                                        }
                                        else
                                        {
                                            _printDataCopies = 0;
                                        }
                                    }
                                }
                                else
                                {
                                    e.HasMorePages = false;
                                    break;
                                }

                                if (_printDataBinding != null && _printDataBinding.BindingSource != null && 1 < _printDataBinding.BindingSource.Count)
                                {
                                    // 打印数据源下移一条记录
                                    if (_printDataBinding.BindingSource.Position + 1 < _printDataBinding.BindingSource.Count)
                                    {
                                        _printDataBinding.BindingSource.MoveNext();
                                    }
                                    else
                                    {
                                        _printDataBinding.BindingSource.MoveFirst();
                                    }
                                }
                            }

                            // 纸张数是否增加判断
                            if (e.HasMorePages && _printDataPosition < _printDataTotal)
                            {
                                e.HasMorePages = true;
                            }
                            else
                            {
                                e.HasMorePages = false;
                                return;
                            }
                        }
                        else
                        {
                            e.HasMorePages = false;
                            return;
                        }
                        //e.HasMorePages = false;
                        //e.Graphics.Clear(Color.White);
                    }

                } while (!isPrintCurrentPage);
            }
            else
            */
            {
                this.PrintPage(e);
            }
            
//#if DEBUG
//            Dongke.IBOSS.PRD.Basics.Library.OutputLog.TraceLog(Dongke.IBOSS.PRD.Basics.Library.LogPriority.Debug,
//                   "PrintDocument_PrintPage",
//                   "end",
//                   DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ffffff"),
//                                   Dongke.IBOSS.PRD.Basics.Library.LocalPath.LogExePath + @"printdebug\");
//#endif
        }

        private void PrintPage(PrintPageEventArgs e)
        {
            e.Graphics.PageUnit = GraphicsUnit.Millimeter;

            if (_isPrintAreaVisible && _rectangleFGreed.IsEmpty)
            {
                //if (_landscape)
                //{
                //    // 横向打印
                //    _rectangleFGreed = new RectangleF(
                //        (_defaultPaperSize.Height - _defaultPrintableArea.Bottom) / 100 * e.Graphics.DpiY,
                //        _defaultPrintableArea.Left / 100 * e.Graphics.DpiX,
                //        _defaultPrintableArea.Height / 100 * e.Graphics.DpiY,
                //        _defaultPrintableArea.Width / 100 * e.Graphics.DpiX);
                //}
                //else
                //{
                //    // 纵向打印
                //    _rectangleFGreed = new RectangleF(
                //        _defaultPrintableArea.Left / 100 * e.Graphics.DpiX,
                //        _defaultPrintableArea.Top / 100 * e.Graphics.DpiY,
                //        _defaultPrintableArea.Width / 100 * e.Graphics.DpiX,
                //        _defaultPrintableArea.Height / 100 * e.Graphics.DpiY);
                //}
                _rectangleFGreed = new RectangleF(
                    0,
                    0,
                    LayoutCommon.MillimeterToInch100Single(this.PaperWidth) / 100 * e.Graphics.DpiX,
                    LayoutCommon.MillimeterToInch100Single(this.PaperHeight) / 100 * e.Graphics.DpiY);
            }

            if (_printType == PrintType.PrintTest)
            {
                // 打印范围
                RectangleF rectangleF = new RectangleF(_allOffsetX,
                                                       _allOffsetY,
                                                       _paperWidth,
                                                       _paperHeight);
                e.Graphics.SetClip(rectangleF);

                // 背景打印
                if (_isPrintBackground)
                {
                    PrintBackgroundImage(e.Graphics);
                }

                // Item打印
                foreach (LayoutItem layoutItem in _items)
                {
                    switch (layoutItem.ItemType)
                    {
                        case ItemType.Text:
                            DrawTextItem(e.Graphics, (TextItem)layoutItem);
                            break;
                        case ItemType.Image:
                            DrawImageItem(e.Graphics, (ImageItem)layoutItem);
                            break;
                        case ItemType.Rectangle:
                            DrawRectangleItem(e.Graphics, (RectangleItem)layoutItem);
                            break;
                        case ItemType.Ellipse:
                            DrawEllipseItem(e.Graphics, (EllipseItem)layoutItem);
                            break;
                        //case ItemType.Line:
                        //    DrawLineItem(e.Graphics, (LineItem)layoutItem);
                        //    break;
                        case ItemType.Grid:
                            DrawGridItem(e.Graphics, (GridItem)layoutItem);
                            break;
                        case ItemType.PageNum:
                            DrawPageNumItem(e.Graphics, (PageNumItem)layoutItem);
                            break;
                        case ItemType.TotalText:
                            DrawTotalTextItem(e.Graphics, (TotalTextItem)layoutItem);
                            break;
                        default:
                            //throw new NotImplementedException();
                            break;
                    }
                }

                // 可以打印范围
                if (_isPrintAreaVisible)
                {
                    e.Graphics.PageUnit = GraphicsUnit.Pixel;
                    e.Graphics.ResetClip();
                    e.Graphics.DrawRectangle(LayoutCommon.GreedDotPen,
                                            _rectangleFGreed.X,
                                            _rectangleFGreed.Y,
                                            _rectangleFGreed.Width,
                                            _rectangleFGreed.Height);
                }

                e.HasMorePages = false;
            }
            else if (_printType == PrintType.Print || _printType == PrintType.PrintPreview)
            {
                // 打印范围
                RectangleF rectangleF = new RectangleF(_allOffsetX,
                                                       _allOffsetY,
                                                       _paperWidth,
                                                       _paperHeight);
                e.Graphics.SetClip(rectangleF);

                // 背景打印
                if (_isPrintBackground)
                {
                    PrintBackgroundImage(e.Graphics);
                }

                // Item打印
                foreach (LayoutItem layoutItem in _items)
                {
                    switch (layoutItem.ItemType)
                    {
                        case ItemType.Text:
                            DrawTextItem(e.Graphics, (TextItem)layoutItem);
                            break;
                        case ItemType.Image:
                            DrawImageItem(e.Graphics, (ImageItem)layoutItem);
                            break;
                        case ItemType.Rectangle:
                            DrawRectangleItem(e.Graphics, (RectangleItem)layoutItem);
                            break;
                        case ItemType.Ellipse:
                            DrawEllipseItem(e.Graphics, (EllipseItem)layoutItem);
                            break;
                        //case ItemType.Line:
                        //    DrawLineItem(e.Graphics, (LineItem)layoutItem);
                        //    break;
                        case ItemType.Grid:
                            DrawGridItem(e.Graphics, (GridItem)layoutItem);
                            break;
                        case ItemType.PageNum:
                            DrawPageNumItem(e.Graphics, (PageNumItem)layoutItem);
                            break;
                        case ItemType.TotalText:
                            DrawTotalTextItem(e.Graphics, (TotalTextItem)layoutItem);
                            break;
                        default:
                            //throw new NotImplementedException();
                            break;
                    }
                }

                // 可以打印范围
                if (_isPrintAreaVisible)
                {
                    e.Graphics.PageUnit = GraphicsUnit.Pixel;
                    e.Graphics.ResetClip();
                    e.Graphics.DrawRectangle(LayoutCommon.GreedDotPen,
                                            _rectangleFGreed.X,
                                            _rectangleFGreed.Y,
                                            _rectangleFGreed.Width,
                                            _rectangleFGreed.Height);
                }

                // 表格Item是否有下一页
                if (_printPageNum < TotalPageNum)
                {
                    _printPageNum++;
                    e.HasMorePages = true;
                    return;
                }

                if (_printAction == PrintAction.PrintToPrinter)
                {
                    // 纸张数是否增加判断
                    if (_printDataBinding != null && _printDataBinding.BindingSource != null && 0 < _printDataBinding.BindingSource.Count)
                    {
                        if (_printDataBinding.BindingSource.Position + 1 < _printDataBinding.BindingSource.Count)
                        {
                            // 打印数据源下移一条记录
                            _printDataBinding.BindingSource.MoveNext();
                            _printPageNum = 1;
                            e.HasMorePages = true;
                        }
                        else
                        {
                            e.HasMorePages = false;
                        }
                    }
                    else
                    {
                        e.HasMorePages = false;
                    }
                }
                else
                {
                    // 纸张数是否增加判断
                    if (++_printDataPosition < _printDataTotal)
                    {
                        _printPageNum = 1;
                        e.HasMorePages = true;
                        // 同一数据一次印刷/分批印刷
                        if (true)
                        {
                            // 同一数据一次印刷
                            if (++_printDataCopies < _numberOfCopies)
                            {
                                return;
                            }
                            else
                            {
                                _printDataCopies = 0;
                            }
                        }
                    }
                    else
                    {
                        e.HasMorePages = false;
                        return;
                    }

                    if (_printDataBinding != null && _printDataBinding.BindingSource != null && 0 < _printDataBinding.BindingSource.Count)
                    {
                        // 打印数据源下移一条记录
                        if (_printDataBinding.BindingSource.Position + 1 < _printDataBinding.BindingSource.Count)
                        {
                            _printDataBinding.BindingSource.MoveNext();
                        }
                        else
                        {
                            _printDataBinding.BindingSource.MoveFirst();
                        }
                    }
                }
            }
            else if (_printType == PrintType.AllocationPrint || _printType == PrintType.AllocationPrintPreview)
            {
                e.Graphics.SetClip(RectangleF.Empty);

                int allocationIndex = -1;
                // 一张纸打印
                for (int i = 0; i < _allocationNum; i++)
                {
                    allocationIndex++;
                    if (_printDataPosition < _allocationSkipCount)
                    {
                        // 跳过的打印位置
                        e.HasMorePages = true;
                        continue;
                    }

                    _allOffsetX = _marginLeft
                        + (allocationIndex % _allocationNumX)
                        * (_paperWidth + _allocationHorizontalSpace)
                        - _printerOffsetX;

                    _allOffsetY = _marginTop
                        + (allocationIndex / _allocationNumX)
                        * (_paperHeight + _allocationVerticalSpace)
                        - _printerOffsetY;

                    // 打印范围
                    RectangleF rectangleF = new RectangleF(_allOffsetX,
                                                           _allOffsetY,
                                                           _paperWidth,
                                                           _paperHeight);

                    e.Graphics.SetClip(rectangleF);

                    // 背景打印
                    if (_isPrintBackground)
                    {
                        PrintBackgroundImage(e.Graphics);
                    }

                    // Item打印
                    foreach (LayoutItem layoutItem in _items)
                    {
                        switch (layoutItem.ItemType)
                        {
                            case ItemType.Text:
                                DrawTextItem(e.Graphics, (TextItem)layoutItem);
                                break;
                            case ItemType.Image:
                                DrawImageItem(e.Graphics, (ImageItem)layoutItem);
                                break;
                            case ItemType.Rectangle:
                                DrawRectangleItem(e.Graphics, (RectangleItem)layoutItem);
                                break;
                            case ItemType.Ellipse:
                                DrawEllipseItem(e.Graphics, (EllipseItem)layoutItem);
                                break;
                            //case ItemType.Line:
                            //    DrawLineItem(e.Graphics, (LineItem)layoutItem);
                            //    break;
                            case ItemType.Grid:
                                DrawGridItem(e.Graphics, (GridItem)layoutItem);
                                break;
                            case ItemType.PageNum:
                                DrawPageNumItem(e.Graphics, (PageNumItem)layoutItem);
                                break;
                            case ItemType.TotalText:
                                DrawTotalTextItem(e.Graphics, (TotalTextItem)layoutItem);
                                break;
                            default:
                                break;
                        }
                    }

                    // 表格Item是否有下一页
                    if (_printPageNum < TotalPageNum)
                    {
                        _printPageNum++;
                        continue;
                    }

                    // 纸张数是否增加判断
                    if (++_printDataPosition < _printDataTotal)
                    {
                        _printPageNum = 1;
                        e.HasMorePages = true;
                        // 同一数据一次印刷/分批印刷
                        if (true)
                        {
                            // 同一数据一次印刷
                            if (++_printDataCopies < _numberOfCopies)
                            {
                                continue;
                            }
                            else
                            {
                                _printDataCopies = 0;
                            }
                        }
                    }
                    else
                    {
                        e.HasMorePages = false;
                        break;
                    }

                    if (_printDataBinding != null && _printDataBinding.BindingSource != null && 1 < _printDataBinding.BindingSource.Count)
                    {
                        // 打印数据源下移一条记录
                        if (_printDataBinding.BindingSource.Position + 1 < _printDataBinding.BindingSource.Count)
                        {
                            _printDataBinding.BindingSource.MoveNext();
                        }
                        else
                        {
                            _printDataBinding.BindingSource.MoveFirst();
                        }
                    }
                }

                // 可以打印范围
                if (_isPrintAreaVisible)
                {
                    e.Graphics.PageUnit = GraphicsUnit.Pixel;
                    e.Graphics.ResetClip();
                    e.Graphics.DrawRectangle(LayoutCommon.GreedDotPen,
                                            _rectangleFGreed.X,
                                            _rectangleFGreed.Y,
                                            _rectangleFGreed.Width,
                                            _rectangleFGreed.Height);
                }

                // 纸张数是否增加判断
                if (e.HasMorePages && _printDataPosition < _printDataTotal)
                {
                    e.HasMorePages = true;
                }
                else
                {
                    e.HasMorePages = false;
                }
            }
            else
            {
                e.HasMorePages = false;
            }
        }
        // 选定打印页码 modify by chenxy 2014-03-27 end
        #endregion 打印相关

        #endregion 事件处理

        #region 委托事件
        /// <summary>
        /// 用户操作数据项目完成时发生
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public delegate void UserChangedItemEventHandler(object sender, ItemChangedEventArgs e);

        /// <summary>
        /// 用户操作数据项目完成时发生
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public delegate void UserChangedGridItemEventHandler(object sender, CollectionChangeEventArgs e);
        #endregion

        #region 事件
        /// <summary>
        /// 改变纸张尺寸。
        /// </summary>
        public event EventHandler PaperSizeChanged;

        /// <summary>
        /// 改变缩放比例
        /// </summary>
        public event EventHandler ZoomChanged;

        /// <summary>
        /// 当一个项目被改变，移动，添加或删除引发此事件。
        /// </summary>
        public event ItemChangedEventHandler ItemChanged;

        /// <summary>
        /// 项目的选择状态改变时引发此事件。
        /// </summary>
        public event ItemSelectionChangedEventHandler ItemSelectionChanged;

        /// <summary>
        /// 打印或显示数据之前引发此事件。
        /// </summary>
        public event ItemValueFormattingEventHandler ItemValueFormatting;

        /// <summary>
        /// 用户追加Item完成时触发事件
        /// </summary>
        public event UserChangedItemEventHandler UserAddedItem;

        /// <summary>
        /// 用户删除Item完成时触发事件
        /// </summary>
        public event UserChangedItemEventHandler UserDeletedItem;

        /// <summary>
        /// 用户修改GridItem列时触发事件
        /// </summary>
        public event UserChangedGridItemEventHandler UserChangedGridItem;

        /// <summary>
        /// 改变项目的选中状态
        /// </summary>
        public event EventHandler UserSelectionChanged;
        #endregion 事件

        #region User32
        /// <summary>
        /// 
        /// </summary>
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr SendMessage(HandleRef hWnd, int msg, int wParam, int lParam);
        #endregion User32

        #region Grid页码相关
        /// <summary>
        /// 当前页码
        /// </summary>
        [Browsable(false)]
        public int CurrentPageNum
        {
            get
            {
                return _currentPageNum;
            }
        }

        /// <summary>
        /// 页数
        /// </summary>
        [Browsable(false)]
        public int TotalPageNum
        {
            get
            {
                return _totalPageNum;
            }
        }

        /// <summary>
        /// 打印页码
        /// </summary>
        internal int PrintPageNum
        {
            get
            {
                return _printPageNum;
            }
        }

        /// <summary>
        /// 设置总页数
        /// </summary>
        internal void SetTotalPageNum()
        {
            LayoutItem[] grids = this.GetItems(ItemType.Grid);
            int total = 1;
            foreach (GridItem grid in grids)
            {
                total = Math.Max(total, grid.TotalPageNum);
            }

            if (total != _totalPageNum)
            {
                _totalPageNum = total;
                LayoutItem[] pageNums = this.GetItems(ItemType.PageNum);
                foreach (PageNumItem pageNum in pageNums)
                {
                    pageNum.Refresh();
                }
            }
        }

        /// <summary>
        /// 设定显示第几页
        /// </summary>
        /// <param name="pageNum"></param>
        public void SetPageNum(int pageNum)
        {
            if (pageNum < 1)
            {
                pageNum = 1;
            }
            if (pageNum > _totalPageNum)
            {
                pageNum = _totalPageNum;
            }
            if (pageNum != _currentPageNum)
            {
                _currentPageNum = pageNum;
                LayoutItem[] grids = this.GetItems(ItemType.Grid);
                foreach (GridItem grid in grids)
                {
                    grid.Refresh();
                }
                LayoutItem[] pageNums = this.GetItems(ItemType.PageNum);
                foreach (PageNumItem pageNumItem in pageNums)
                {
                    pageNumItem.Refresh();
                }
                LayoutItem[] totalTextItems = this.GetItems(ItemType.TotalText);
                foreach (TotalTextItem totalTextItem in totalTextItems)
                {
                    totalTextItem.Refresh();
                }
            }
        }

        /// <summary>
        /// Grid使用的数据源
        /// </summary>
        [Browsable(false)]
        public DataSet GridDataSource
        {
            get
            {
                return _gridDataSet;
            }
            set
            {
                if (value != _gridDataSet)
                {
                    _gridDataSet = value;
                    LayoutItem[] grids = this.GetItems(ItemType.Grid);
                    if (grids != null && grids.Length > 0)
                    {
                        if (_gridDataSet == null || _gridDataSet.Tables.Count == 0)
                        {
                            foreach (GridItem grid in grids)
                            {
                                grid.GridSource = null;
                            }
                        }
                        else
                        {
                            foreach (GridItem grid in grids)
                            {
                                if (_gridDataSet.Tables.Contains(grid.GridDataMember))
                                {
                                    grid.GridSource = _gridDataSet.Tables[grid.GridDataMember];
                                }
                                else
                                {
                                    grid.GridSource = null;
                                }
                            }
                        }
                    }
                }
            }
        }
        #endregion Grid页码相关
    }
}