public static Bitmap generateLongBitmap(List <Bitmap> bitmaps, Rectangle selectRect)
{
if (bitmaps.Count == 0)
{
return(new Bitmap(10, 10));
}
else if (bitmaps.Count == 1)
{
return(bitmaps[0]);
}
Bitmap longBitmap = new Bitmap(selectRect.Width, selectRect.Height * bitmaps.Count);
Graphics g = Graphics.FromImage(longBitmap);
// 将画布涂为白色(底部颜色可自行设置)
g.FillRectangle(Brushes.White, new Rectangle(0, 0, longBitmap.Width, longBitmap.Height));
List <int> bitmapRowCRCList1, bitmapRowCRCList2, bitmapColmunCRCList, lastBitmapColmunCRCList;
Bitmap bitmap = bitmaps[0];
bitmapColmunCRCList = ImageTool.GetBitmapCRCCode(bitmap, false);
g.DrawImage(bitmap, 0, 0, bitmap.Width, bitmap.Height);
int edgeIndex1 = 0, edgeIndex2 = 0, height = 0, img1Index = 0, img2Index = 0;
for (int i = 1; i < bitmaps.Count; i++)
{
bitmap = bitmaps[i];
lastBitmapColmunCRCList = bitmapColmunCRCList;
bitmapColmunCRCList = ImageTool.GetBitmapCRCCode(bitmap, false);
ImageTool.FindMaxCommonEdge(bitmapColmunCRCList, lastBitmapColmunCRCList, ref edgeIndex1, ref edgeIndex2);
bitmapRowCRCList1 = ImageTool.GetBitmapCRCCode(bitmaps[i - 1], true, edgeIndex1, edgeIndex2);
bitmapRowCRCList2 = ImageTool.GetBitmapCRCCode(bitmap, true, edgeIndex1, edgeIndex2);
if (ImageTool.FindMaxCommonList(bitmapRowCRCList1, bitmapRowCRCList2, ref img1Index, ref img2Index))
{
height += img1Index;
}
else
{
height += bitmap.Height;
img2Index = 0;
}
//g.DrawImage(bitmap, i*selectRect.Width, index, bitmap.Width, bitmap.Height);
g.DrawImage(bitmap, new Rectangle(0, height, bitmap.Width, bitmap.Height - img2Index),
new Rectangle(0, img2Index, bitmap.Width, bitmap.Height - img2Index), GraphicsUnit.Pixel);
Console.WriteLine(string.Format("合并,i:{0},h:{1},i1:{2},i2:{3},e1;{4},e2:{5}",
i, height, img1Index, img2Index, edgeIndex1, edgeIndex2));
}
g.Dispose();
height += bitmap.Height;
bitmap = new Bitmap(selectRect.Width, height);
g = Graphics.FromImage(bitmap);
g.FillRectangle(Brushes.White, new Rectangle(0, 0, bitmap.Width, bitmap.Height));
g.DrawImage(longBitmap, new Rectangle(0, 0, bitmap.Width, height),
new Rectangle(0, 0, bitmap.Width, height), GraphicsUnit.Pixel);
g.Dispose();
return(bitmap);
}