public static WriteableBitmap Gradient(this WriteableBitmap bitmap, LinearGradientMode mode, Color color1, Color color2, System.Drawing.Rectangle region)
{
var result = bitmap.Bitmap();
using (var g = System.Drawing.Graphics.FromImage(result))
g.FillRectangle(new LinearGradientBrush(region, color1, color2, mode), region);
return(result.WriteableBitmap());
}
public override void Render(WriteableBitmap input)
{
var x1 = Region.X;
var y1 = Region.Y;
var x2 = Region.X + Region.Width;
var y2 = Region.Y + Region.Height;
if (Style.ColorOverlay.IsEnabled)
{
input.FillEllipse(x1, y1, x2, y2, Style.ColorOverlay.Color, null);
return;
}
input.FillEllipse(x1, y1, x2, y2, Stroke.Color, null);
x1 += StrokeThickness.Int32();
y1 += StrokeThickness.Int32();
x2 -= StrokeThickness.Int32();
y2 -= StrokeThickness.Int32();
x2 = x2 <= x1 ? x1 + 1 : x2;
y2 = y2 <= y1 ? y1 + 1 : y2;
input.FillEllipse(x1, y1, x2, y2, Fill.Color, null);
if (Transform is ScaleTransform)
{
}
if (Transform is SkewTransform)
{
if ((Transform as SkewTransform).TopLeft != null)
{
Preview = TransformTool.Shear(input.Bitmap(), (Transform as SkewTransform).TopLeft.X, (Transform as SkewTransform).TopLeft.Y).WriteableBitmap();
}
}
}