public void Render()
{
if (_bitmap1 == null || _renderTarget2D == null)
{
return;
}
DeviceContext.Target = _bitmap1;
using (DeviceContext.Target)
{
DeviceContext.BeginDraw();
if (this.needsClear)
{
DeviceContext.Clear(this.ClearColor);
this.needsClear = false;
}
while (_queue.Count > 0)
{
CanvasObject o = _queue.Dequeue();
o.DoWork(DeviceContext);
}
DeviceContext.EndDraw();
}
DeviceContext.Target = null;
_spriteBatch.Begin(SpriteSortMode.Immediate, this._graphicsDeviceManager.GraphicsDevice.BlendStates.NonPremultiplied);
_spriteBatch.Draw(_renderTarget2D, Vector2.Zero, Color.White);
_spriteBatch.End();
}
public void PushObject(CanvasObject canvasObject)
{
if (canvasObject == null)
{
throw new ArgumentNullException("canvasObject");
}
bool isInitialized = canvasObject.IsInitialized;
if (!isInitialized)
{
canvasObject.Initialize(DeviceContext);
}
_objects.Add(canvasObject);
_queue.Enqueue(canvasObject);
State = CanvasState.Append;
}