using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;

using Curtain.Framework.Barcode;
using Curtain.Framework.Barcode.OneD;
using Curtain.Framework.Barcode.QRCode;

namespace Dongke.WinForm.Controls.InvoiceLayout
{
    public static class BarcodeDraw
    {
        /// <summary>
        /// 绘制图片
        /// </summary>
        /// <param name="data"></param>
        /// <param name="options"></param>
        /// <param name="rectangle"></param>
        /// <returns></returns>
        public static void DrawOneDImageOnGraphics(string value, Rectangle rectangle, OneDDrawingOptions options)
        {
            OneDData data = OneDHelper.Encode(value, rectangle.Width);

            using (Bitmap dataImage = new Bitmap(data.Size, rectangle.Height, options.DrawGraphics))
            {
                Rectangle imageRect = new Rectangle(0, 0, dataImage.Width, dataImage.Height);

                BitmapData bmpData = dataImage.LockBits(imageRect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
                try
                {
                    byte[] pixels = new byte[bmpData.Stride * bmpData.Height];
                    int index = 0;
                    for (int x = 0; x < bmpData.Width; x++)
                    {
                        Color color = (data[x] ? options.ForeColor : options.BackColor);
                        pixels[index++] = color.B;
                        pixels[index++] = color.G;
                        pixels[index++] = color.R;
                        pixels[index++] = color.A;
                    }
                    //index += padding;

                    for (int y = 1; y < bmpData.Height; y++)
                    {
                        Array.Copy(pixels, 0, pixels, y * bmpData.Stride, bmpData.Stride);
                    }
                    Marshal.Copy(pixels, 0, bmpData.Scan0, pixels.Length);
                }
                finally
                {
                    dataImage.UnlockBits(bmpData);
                }

                Rectangle rect = new Rectangle(rectangle.Left + (rectangle.Width - dataImage.Width) / 2,
                   rectangle.Top,
                   dataImage.Width,
                   dataImage.Height);
                //options.DrawGraphics.DrawImage(dataImage, rect, imageRect, GraphicsUnit.Pixel);
                options.DrawGraphics.DrawImage(dataImage, rect.Left, rect.Top, imageRect, GraphicsUnit.Pixel);
            }
        }


        /// <summary>
        /// 绘制图片
        /// </summary>
        /// <param name="data"></param>
        /// <param name="options"></param>
        /// <param name="rectangle"></param>
        /// <returns></returns>
        public static void DrawQRCodeImageOnGraphics(string value, Rectangle rectangle, QRCodeDrawingOptions options)
        {
            QRCodeData data = QRCodeHelper.Encode(value, rectangle.Width, rectangle.Height);

            using (Bitmap dataImage = new Bitmap(data.Size, data.Size, options.DrawGraphics))
            {
                Rectangle imageRect = new Rectangle(0, 0, dataImage.Width, dataImage.Height);
                BitmapData bmpData = dataImage.LockBits(imageRect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
                try
                {
                    byte[] pixels = new byte[bmpData.Stride * bmpData.Height];
                    int index = 0;
                    for (int y = 0; y < data.Size; y++)
                    {
                        for (int x = 0; x < data.Size; x++)
                        {
                            Color color = (data[x, y] ? options.ForeColor : options.BackColor);
                            pixels[index++] = color.B;
                            pixels[index++] = color.G;
                            pixels[index++] = color.R;
                            pixels[index++] = color.A;
                        }
                    }
                    Marshal.Copy(pixels, 0, bmpData.Scan0, pixels.Length);
                }
                finally
                {
                    dataImage.UnlockBits(bmpData);
                }

                Rectangle rect = new Rectangle(rectangle.Left + (rectangle.Width - dataImage.Width) / 2,
                   rectangle.Top + (rectangle.Height - dataImage.Height) / 2,
                   dataImage.Width,
                   dataImage.Height);
                //options.DrawGraphics.DrawImage(dataImage, rect, imageRect, GraphicsUnit.Pixel);
                options.DrawGraphics.DrawImage(dataImage, rect.Left, rect.Top, imageRect, GraphicsUnit.Pixel);
            }
        }

    }
}