public void StartRendering()
{
while (Parent != null && Parent.Visible)
{
Application.DoEvents();
RenderContext.DispatchEvents();
var args = new OpenGLRenderEventsArgs();
RenderContext.Clear(Color.White);
OnRender?.Invoke(RenderContext, args);
Render(RenderContext, args);
RenderContext.Display();
}
}
protected override void Render(RenderWindow context, OpenGLRenderEventsArgs lastArgs)
{
base.Render(context, lastArgs);
if (!isZoom)
{
return;
}
var drawBackGround = (lastArgs.DrawHistory["background"] as Sprite);
_intRectBackGround = drawBackGround.TextureRect;
Shape shape = new RectangleShape(new Vector2f(_selectionRect.Width, _selectionRect.Height));
shape.Position = new Vector2f(_selectionRect.Left, _selectionRect.Top);
shape.OutlineColor = Color.Red;
shape.OutlineThickness = 2f;
shape.FillColor = Color.Transparent;
context.Draw(shape);
}
protected virtual void Render(RenderWindow context, OpenGLRenderEventsArgs lastArgs)
{
}
