protected virtual void OnDrawLayerGrid(DrawLayerEventArgs e)
{
if (DrawLayerGrid != null) {
DrawLayerGrid(this, e);
}
}
protected virtual void OnDrawExtra(DrawLayerEventArgs e)
{
if (DrawExtra != null) {
DrawExtra(this, e);
}
}
protected virtual void OnDrawLayerContent(DrawLayerEventArgs e)
{
if (DrawLayerContent != null) {
DrawLayerContent(this, e);
}
}
protected override void Draw()
{
GraphicsDevice.Clear(_backColor);
DrawLayerEventArgs e = new DrawLayerEventArgs(_spriteBatch, _zoom);
if (_canvasLayer != null)
_canvasLayer.DrawContent(_spriteBatch);
foreach (BaseControlLayer layer in _layers) {
layer.DrawContent(_spriteBatch);
}
OnDrawLayerContent(e);
if (ShowGrid) {
foreach (BaseControlLayer layer in _layers) {
layer.DrawGrid(_spriteBatch);
}
OnDrawLayerGrid(e);
}
foreach (BaseControlLayer layer in _layers) {
layer.DrawExtra(_spriteBatch);
}
OnDrawExtra(e);
if (_annotLayer != null)
_annotLayer.DrawContent(_spriteBatch);
}
