/*******************************************************************************
 * Copyright(c) 2014 DongkeSoft All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：C_GroupBox.cs
 *      2.功能描述：扩展的控件
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      陈晓野          2014/08/13          1.00            新建
 *******************************************************************************/

using System;
using System.ComponentModel;
using System.Windows.Forms;

using Dongke.IBOSS.PRD.Basics.Library;

namespace Dongke.IBOSS.PRD.Basics.BaseControls
{
    public partial class C_GroupBox : DKGroupBox
    {
        #region 变量定义

        private bool _isExpand = true;                                  // 展开关闭标识
        private bool _canExpand = true;
        private string _closingMark = ControlsConst.CLOSING_MARK;       // 关闭时的图标
        private string _openingMark = ControlsConst.OPENING_MARK;       // 展开时的图标
        private bool _isExpanding = true;                               // GroupBox展开中标识
        private int _originalHeight = -1;                               // 控件原始高度
        private int _differenceHeight = 0;                              // 计算高度差
        private bool _isAdjustingHeaderText = false;
        private bool _originalExpand = true;                            // 原始展开状态

        #endregion

        #region 控件实例化

        /// <summary>
        /// 控件实例化
        /// </summary>
        public C_GroupBox()
        {
            InitializeComponent();
            this.TextChanged += new EventHandler(dkGroupBox_TextChanged);
            this.MouseClick += new MouseEventHandler(dkGroupBox_MouseClick);
            this.BackColor = System.Drawing.Color.Transparent;
        }

        #endregion

        #region dkGroupBox控件属性

        /// <summary>
        /// 原始高度属性
        /// </summary>
        [Browsable(false)]
        [Description("dkGroupBox控件原始高度的设定和取得。")]
        public int OriginalHeight
        {
            get
            {
                return _originalHeight;
            }
            set
            {
                _originalHeight = value;
            }
        }

        /// <summary>
        /// 控件是否展开属性
        /// </summary>
        [Bindable(true)]
        [DefaultValue(true)]
        [Description("dkGroupBox控件是否是展开状态的设定和取得。")]
        public bool IsExpand
        {
            get
            {
                return _isExpand;
            }
            set
            {
                if (_isExpand != value)
                {
                    _isExpand = value;
                    if (!_isExpand)
                    {
                        _originalExpand = _isExpanding;
                        if (!_isExpanding)
                        {
                            this.Switch(true);
                        }
                        else
                        {
                            AdjustHeaderText();
                        }
                    }
                    else
                    {
                        if (_originalExpand != _isExpanding)
                        {
                            this.Switch(_originalExpand);
                        }
                        else
                        {
                            AdjustHeaderText();
                        }
                    }
                }
            }
        }

        /// <summary>
        /// 控件可否展开属性
        /// </summary>
        [DefaultValue(true)]
        public bool CanExpand
        {
            get
            {
                return _canExpand;
            }
            set
            {
                _canExpand = value;
            }
        }

        /// <summary>
        /// 控件高度差属性
        /// </summary>
        [Bindable(false)]
        [DefaultValue(0)]
        [Description("dkGroupBox控件的高度差的取得。")]
        public int DifferenceHeight
        {
            get
            {
                return _differenceHeight;
            }
        }

        /// <summary>
        /// 控件是否展开属性
        /// </summary>
        [Browsable(false)]
        [DefaultValue(true)]
        public bool IsExpanding
        {
            get
            {
                return _isExpanding;
            }
        }

        /// <summary>
        /// 控件收缩时图标属性
        /// </summary>
        [Browsable(true)]
        [DefaultValue(ControlsConst.CLOSING_MARK)]
        [Description("dkGroupBox控件关闭时图标的设定和取得。")]
        public string ClosingMark
        {
            get
            {
                return _closingMark;
            }
            set
            {
                _closingMark = value;
            }
        }

        /// <summary>
        /// 控件展开时图标属性
        /// </summary>
        [Browsable(true)]
        [DefaultValue(ControlsConst.OPENING_MARK)]
        [Description("dkGroupBox控件展开时图标的设定和取得。")]
        public string OpeningMark
        {
            get
            {
                return _openingMark;
            }
            set
            {
                _openingMark = value;
            }
        }

        /// <summary>
        /// 控件所属分组控件属性
        /// </summary>
        [Browsable(true)]
        [DefaultValue(null)]
        [Description("dkGroupBox控件所属的RadioButton组的值的设定和取得。")]
        public Object RadioBindingValue
        {
            get
            {
                foreach (Control control in this.Controls)
                {
                    RadioButton radioButton = control as RadioButton;
                    if (radioButton != null)
                    {
                        if (radioButton.Checked)
                        {
                            return radioButton.Tag;
                        }
                    }
                }
                return null;
            }
            set
            {
                if (Utility.IsNull(value))
                {
                    return;
                }
                foreach (Control control in this.Controls)
                {
                    RadioButton radioButton = control as RadioButton;
                    if (radioButton != null)
                    {
                        if (radioButton.Tag != null)
                        {
                            if (value.ToString().Equals(radioButton.Tag.ToString()))
                            {
                                radioButton.Checked = true;
                                return;
                            }
                        }
                    }
                }
            }
        }

        public void CloseExpand()
        {
            this.Switch(false);
        }

        #endregion

        #region 受保护的方法

        protected void AdjustHeaderText()
        {
            if (_isAdjustingHeaderText)
            {
                return;
            }
            _isAdjustingHeaderText = true;
            this.Text = DeleteRightString(this.Text, ClosingMark);
            this.Text = DeleteRightString(this.Text, OpeningMark);
            if (_isExpand)
            {
                // 控件打开的情况
                if (_isExpanding)
                {
                    // 控件打开的情况
                    this.Text = string.Format("{0}{1}{2}"
                                            , this.Text
                                            , ControlsConst.SPACE_MARK
                                            , OpeningMark);
                }
                else
                {
                    // 控件打开的情况
                    this.Text = string.Format("{0}{1}{2}"
                                            , this.Text
                                            , ControlsConst.SPACE_MARK
                                            , ClosingMark);
                }
            }
            _isAdjustingHeaderText = false;
        }

        /// <summary>
        /// 删除右侧字符
        /// </summary>
        /// <param name="source">源字符串</param>
        /// <param name="search">目标字符串</param>
        /// <returns>结果字符串</returns>
        protected string DeleteRightString(string source, string search)
        {
            if (IsMatchRightString(source, search))
            {
                source = source.Substring(0,
                    source.Length - search.Length - ControlsConst.SPACE_MARK.Length);
            }
            return source;
        }

        protected bool IsMatchRightString(string source, string search)
        {
            if (string.IsNullOrEmpty(source))
            {
                return false;
            }
            if (string.IsNullOrEmpty(search))
            {
                return false;
            }
            if (ControlsConst.SPACE_MARK.Length + search.Length <= source.Length)
            {
                if (source.LastIndexOf(string.Format("{0}{1}", ControlsConst.SPACE_MARK, search))
                    == source.Length - search.Length - ControlsConst.SPACE_MARK.Length)
                {
                    return true;
                }
            }
            return false;
        }

        #endregion 受保护的方法

        #region 私有方法

        private void dkGroupBox_TextChanged(Object sender, EventArgs e)
        {
            AdjustHeaderText();
        }

        private void dkGroupBox_MouseClick(Object sender, MouseEventArgs e)
        {
            if (this._isExpand
                && this.CanExpand)
            {
                if (e.Button == MouseButtons.Left)
                {
                    if (0 < e.Y && e.Y < this.FontHeight)
                    {
                        this.Switch(!this.IsExpanding);
                    }
                }
            }
        }

        /// <summary>
        /// 控件展开收缩处理
        /// </summary>
        /// <param name="isExpand">展开属性</param>
        private void Switch(bool isExpand)
        {
            if (!_isExpand && _isExpanding)
            {
                return;
            }
            if (isExpand)
            {
                // 处理展开情况
                if (0 < _originalHeight)
                {
                    // 原始高度被记住的情况，恢复原来的高度
                    this._differenceHeight = _originalHeight - this.Height;
                    this.Height = _originalHeight;
                    this._isExpanding = true;
                    if (this.Parent != null)
                    {
                        int baseY = this.Parent.Controls[this.Name].Top;
                        foreach (Control control in this.Parent.Controls)
                        {
                            if (baseY < control.Top
                                && !(control.Right < this.Left || this.Right < control.Left)
                                && !"NotFollow".Equals(control.Tag))
                            {
                                if ((control.Anchor & AnchorStyles.Top) == AnchorStyles.Top)
                                {
                                    control.Top += this._differenceHeight;
                                }
                                if ((control.Anchor & AnchorStyles.Bottom) == AnchorStyles.Bottom)
                                {
                                    if ((control.Anchor & AnchorStyles.Top) == AnchorStyles.Top)
                                    {
                                        control.Height -= this._differenceHeight;
                                    }
                                }
                            }
                        }
                    }
                }
            }
            else
            {
                _originalHeight = this.Height;
                this._differenceHeight = _originalHeight - this.FontHeight - 1;
                this.Height = this.FontHeight + 1;
                this._isExpanding = false;
                if (this.Parent != null)
                {
                    int baseY = this.Parent.Controls[this.Name].Top + _originalHeight;
                    foreach (Control control in this.Parent.Controls)
                    {
                        if (baseY < control.Top
                            && !(control.Right < this.Left || this.Right < control.Left)
                            && !"NotFollow".Equals(control.Tag))
                        {
                            if ((control.Anchor & AnchorStyles.Top) == AnchorStyles.Top)
                            {
                                control.Top -= this._differenceHeight;
                            }

                            if ((control.Anchor & AnchorStyles.Bottom) == AnchorStyles.Bottom)
                            {
                                if ((control.Anchor & AnchorStyles.Top) == AnchorStyles.Top)
                                {
                                    control.Height += this._differenceHeight;
                                }
                            }
                        }
                    }
                }
            }
            AdjustHeaderText();
        }

        #endregion 私有方法
    }
}