public unsafe void ApplyBackground(IPenContext context)
{
if (context == null)
{
return;
}
IBufferPen Pen = (context is IBufferPen) ? context as IBufferPen : context.ToPen(Width, Height);
if (Pen == null || Pen.ID == BackgroundPen)
{
return;
}
var rc = Factory.newRectangle(0, 0, Pen.Width, Pen.Height);
Pen.CopyTo(rc, Pixels, Length, Width, 0, 0);
BackgroundPen = Pen.ID;
Factory.Add(Pen, ObjType.Buffer);
PendingUpdates.Clear();
BackgroundChanged?.Invoke(this, Factory.EventArgsEmpty);
//RefreshAll();
PendingUpdates.Clear();
PendingUpdates.Invalidate(rc);
}
public unsafe void ClearBackground(IRectangle target)
{
IBufferPen pen = null;
var rc = this.CompitibleRC(target?.X, target?.Y, target?.Width, target?.Height);
if (!string.IsNullOrEmpty(BackgroundPen))
{
Factory.Get(BackgroundPen, out pen, ObjType.Buffer);
if (pen is IPenContext && (pen.Width != Width || pen.Height != Height))
{
Factory.Remove(pen.ID, ObjType.Buffer);
pen = (pen as IPenContext).ToPen(Width, Height);
BackgroundPen = pen.ID;
Factory.Add(pen, ObjType.Buffer);
}
}
if (pen != null)
{
pen.CopyTo(rc, Pixels, Length, Width, rc.X, rc.Y);
goto mks;
}
int[] array = new int[rc.Width * rc.Height];
fixed(int *p = array)
{
CopyMemory(p, 0, (int *)Pixels, IndexOf(rc.X, rc.Y, true), array.Length);
}
mks:
PendingUpdates.Invalidate(target);
}