/// <summary>
/// Raises the <see cref="EventBroker.ImageDrawing"/> event and
/// renders the <see cref="PresentationImage"/>.
/// </summary>
/// <param name="drawArgs"></param>
/// <remarks>
/// For internal Framework use only.
/// </remarks>
/// <exception cref="RenderingException">Thrown if any <see cref="Exception"/> is encountered while rendering the image.</exception>
public virtual void Draw(DrawArgs drawArgs)
{
drawArgs.SceneGraph = this.SceneGraph;
_clientRectangle = drawArgs.RenderingSurface.ClientRectangle;
// Let others know that we're about to draw
ImageDrawingEventArgs args = new ImageDrawingEventArgs(this);
if (this.ImageViewer != null && this.ImageViewer.EventBroker != null)
{
this.ImageViewer.EventBroker.OnImageDrawing(args);
}
OnDrawing();
this.ImageRenderer.Draw(drawArgs);
}
internal void OnImageDrawing(ImageDrawingEventArgs args)
{
EventsHelper.Fire(_imageDrawingEvent, this, args);
}