internal static DrawingCall[] AppendCommand(DrawingCall[] drawing, DrawingCall draw)
{
if (drawing == null)
{
return new[] { draw }
}
;
else
{
var subCanvas = drawing[drawing.Length - 1].Action.Target as SubCanvas;
if (subCanvas != null)
{
subCanvas = new SubCanvas(subCanvas, draw);
var result = new DrawingCall[drawing.Length];
Array.Copy(drawing, result, drawing.Length - 1);
draw.Action = subCanvas.Draw;
result[drawing.Length - 1] = draw;
return(result);
}
else
{
var result = new DrawingCall[drawing.Length + 1];
Array.Copy(drawing, result, drawing.Length);
result[drawing.Length] = draw;
return(result);
}
}
}
public SubCanvas(SubCanvas canvas, DrawingCall draw)
{
generator = canvas.generator;
drawing = AppendCommand(canvas.drawing, draw);
}
internal Canvas(Canvas canvas, DrawingCall draw)
{
generator = canvas.generator;
drawing = SubCanvas.AppendCommand(canvas.drawing, draw);
}
