public void PasteRegionTest()
{
// Generate a white 20 x 20 bitmap
Bitmap bmp = new Bitmap(20, 20);
Random r = new Random();
for (int x = 0; x < bmp.Width; x++)
{
for (int y = 0; y < bmp.Height; y++)
{
bmp.SetPixel(x, y, Color.White);
}
}
// Generate a grid from the bitmap
DrawingGrid grid = new DrawingGrid(bmp, 10, 1);
// Generate a randomly colored 5 x 5 region
DrawingGrid.GridCell[,] region = new DrawingGrid.GridCell[5, 5];
for (int x = 0; x < region.GetLength(0); x++)
{
for (int y = 0; y < region.GetLength(1); y++)
{
region[x, y] = new DrawingGrid.GridCell(Color.FromArgb(255, Color.FromArgb(r.Next())));
}
}
// Paste the region in at (0,0)
grid.PasteRegion(0, 0, region);
// Verify that the region was correctly copied
for (int x = 0; x < region.GetLength(0); x++)
{
for (int y = 0; y < region.GetLength(1); y++)
{
AreEqual(region[x, y].color, grid.GetCell(x, y));
}
}
}
private void DragUp(MouseEventArgs e)
{
dragable = false;
Grid.PasteRegion(selectedRegion.X, selectedRegion.Y, tempClipboard);
DisplayImage();
}