void HandleGLPaint(object sender, System.EventArgs e)
{
_glsx.SmoothMode = SmoothMode.Smooth;
_glsx.StrokeColor = PixelFarm.Drawing.Color.Black;
_glsx.ClearColorBuffer();
//example
canvasPainter.FillColor = PixelFarm.Drawing.Color.Black;
canvasPainter.FillRect(20, 20, 150, 150);
//load bmp image
//-------------------------------------------------------------------------
if (demobase != null)
{
demobase.Draw(canvasPainter);
}
glControl.SwapBuffers();
}
public void LoadExample(DemoBase demoBase)
{
_glControl.MakeCurrent();
_demoBase = demoBase;
demoBase.Init();
if (WithGdiPlusDrawBoard)
{
_bridgeUI = new GdiOnGLESUIElement(_myWidth, _myHeight);
}
else
{
//pure agg's cpu blit
_bridgeUI = new CpuBlitGLESUIElement(_myWidth, _myHeight);
}
//
_bridgeUI.SetUpdateCpuBlitSurfaceDelegate((p, updateArea) => _demoBase.Draw(p));
DemoBase.InvokePainterReady(_demoBase, _bridgeUI.GetAggPainter());
//
//use existing GLRenderSurface and GLPainter
//see=>UISurfaceViewportControl.InitRootGraphics()
GLPainterContext pcx = _surfaceViewport.GetGLRenderSurface();
GLPainter glPainter = _surfaceViewport.GetGLPainter();
_bridgeUI.CreatePrimaryRenderElement(pcx, glPainter, _rootGfx);
//-----------------------------------------------
demoBase.SetEssentialGLHandlers(
() => _glControl.SwapBuffers(),
() => _glControl.GetEglDisplay(),
() => _glControl.GetEglSurface()
);
//-----------------------------------------------
DemoBase.InvokeGLPainterReady(demoBase, pcx, glPainter);
//Add to RenderTree
_rootGfx.AddChild(_bridgeUI.GetPrimaryRenderElement(_rootGfx));
//-----------------------------------------------
//***
GeneralEventListener genEvListener = new GeneralEventListener();
genEvListener.MouseDown += e =>
{
_demoBase.MouseDown(e.X, e.Y, e.Button == UIMouseButtons.Right);
_bridgeUI.InvalidateGraphics();
};
genEvListener.MouseMove += e =>
{
if (e.IsDragging)
{
_bridgeUI.InvalidateGraphics();
_demoBase.MouseDrag(e.X, e.Y);
_bridgeUI.InvalidateGraphics();
}
};
genEvListener.MouseUp += e =>
{
_demoBase.MouseUp(e.X, e.Y);
};
//-----------------------------------------------
_bridgeUI.AttachExternalEventListener(genEvListener);
}