public void TestBitmapResize()
{
Color green = Color.FromArgb(0, 200, 0);
Color red = Color.FromArgb(200, 0, 0);
using (var bitmap = new Bitmap(20, 20))
{
using (var graphics = Graphics.FromImage(bitmap))
using (var gBrush = new SolidBrush(green))
using (var rBrush = new SolidBrush(red))
{
graphics.FillRectangle(gBrush, 0, 0, 10, 20);
graphics.FillRectangle(rBrush, 10, 0, 10, 20);
}
using (var sourceRepresentation = new BitmapRepresentation(bitmap))
using (var sourceBitmapEx = sourceRepresentation.CreateBitmap())
using (var destinationBitmapEx = new BitmapEx(10, 10))
{
BitmapHelpers.ResizeBitmap(sourceBitmapEx, destinationBitmapEx);
var bmp = destinationBitmapEx.GetInternal();
{
var green2 = bmp.GetPixel(3, 5);
var red2 = bmp.GetPixel(7, 5);
Assert.AreEqual(true, CompareColors(green, green2, 5));
Assert.AreEqual(true, CompareColors(red, red2, 5));
}
}
}
}
public static IEnumerable <LayoutDrawElement> ExtractLayoutDrawElements(BitmapEx source, DeviceSize deviceSize, byte left, byte top, LayoutContext layoutContext, TransitionInfo transitionInfo = default(TransitionInfo))
{
var itemWidth = source.Width / deviceSize.Width;
var itemHeight = source.Height / deviceSize.Height;
for (byte x = 0; x < deviceSize.Width; x++)
{
for (byte y = 0; y < deviceSize.Height; y++)
{
var part = layoutContext.CreateBitmap();
using (Graphics grD = part.CreateGraphics())
{
grD.DrawImage(source.GetInternal(), new Rectangle(0, 0, itemWidth, itemHeight), new Rectangle(x * itemWidth, y * itemHeight, itemWidth, itemHeight), GraphicsUnit.Pixel);
}
yield return(new LayoutDrawElement(new Location(left + x, top + y), part, transitionInfo));
}
}
}
internal void SetImage(Location location, BitmapEx bitmap)
{
Action action = () =>
{
var picBox = Controls.OfType <PictureBox>().FirstOrDefault(p => (Location)p.Tag == location);
if (picBox != null)
{
picBox.Image?.Dispose();
picBox.Image = (Image)bitmap.GetInternal().Clone();
}
};
if (InvokeRequired)
{
Invoke(action);
}
else
{
action();
}
}
public static void ResizeBitmap(BitmapEx source, BitmapEx destination, Rectangle destRectangle, ColorMatrix colorMatrix = null)
{
using (var graphics = destination.CreateGraphics())
{
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
using (var wrapMode = new ImageAttributes())
{
wrapMode.SetWrapMode(WrapMode.TileFlipXY);
if (colorMatrix != null)
{
wrapMode.SetColorMatrix(colorMatrix);
}
graphics.DrawImage(source.GetInternal(), destRectangle, 0, 0, source.Width, source.Height, GraphicsUnit.Pixel, wrapMode);
}
}
}