protected override void OnPaint(PaintEventArgs e)
{
if (this.exampleBase == null)
{
base.OnPaint(e);
return;
}
if (!_useGdiPlusOutput)
{
exampleBase.Draw(painter);
Graphics g = e.Graphics;
IntPtr displayDC = g.GetHdc();
bitmapBackBuffer.UpdateToHardwareSurface(displayDC);
g.ReleaseHdc(displayDC);
}
else
{
exampleBase.Draw(painter);
Graphics g = e.Graphics;
IntPtr displayDC = g.GetHdc();
sx.RenderTo(displayDC, 0, 0, new PixelFarm.Drawing.Rectangle(0, 0, bufferBmpRect.Width, bufferBmpRect.Height));
g.ReleaseHdc(displayDC);
}
base.OnPaint(e);
}
protected override void RenderClientContent(DrawBoard d, UpdateArea updateArea)
{
//****
//because our demo may run the 'manual GL code',
//(out of state-control of the shader share resource/ current program/ render tree/
//***
_painter.DetachCurrentShader();
_demo.Draw(_painter);
}
public override void CustomDrawToThisCanvas(DrawBoard canvas, Rectangle updateArea)
{
//****
//because our demo may run the 'manual GL code',
//(out of state-control of the shader share resource/ current program/ render tree/
//***
_painter.DetachCurrentShader();
_demo.Draw(_painter);
}
protected override void OnPaint(PaintEventArgs e)
{
if (this.exampleBase == null)
{
base.OnPaint(e);
return;
}
if (!_useGdiPlusOutput)
{
exampleBase.Draw(painter);
bitmapBackBuffer.UpdateToHardwareSurface(e.Graphics);
}
else
{
UpdateOutput();
}
base.OnPaint(e);
}
protected override void OnPaint(PaintEventArgs e)
{
if (this.exampleBase == null)
{
base.OnPaint(e);
return;
}
if (!_useGdiPlusOutput)
{
exampleBase.Draw(painter);
Graphics g = e.Graphics;
IntPtr displayDC = g.GetHdc();
bitmapBackBuffer.UpdateToHardwareSurface(displayDC);
g.ReleaseHdc(displayDC);
}
else
{
UpdateOutput();
}
base.OnPaint(e);
}
protected override void OnPaint(PaintEventArgs e)
{
if (this.exampleBase == null)
{
base.OnPaint(e);
return;
}
//--------------------------------
exampleBase.Draw(gfx);
//--------------------------------
bitmapBackBuffer.UpdateToHardwareSurface(e.Graphics);
//--------------------------------
base.OnPaint(e);
}
public override void CustomDrawToThisCanvas(DrawBoard canvas, Rectangle updateArea)
{
//
//TODO: review here again
//in pure agg, we could bypass the cache/resolve process
//and render directly to the target canvas
//
//if img changed then clear cache and render again
MemBitmap.ClearCache(_memBmp);
MemBitmap.SetCacheInnerImage(_memBmp, _nativeWin32DC, false);//** set to false because the (life-time) owner of the dc is this class (not the memBmp)
_demo.Draw(_painter);
//copy from actual image and paint to canvas
canvas.DrawImage(_memBmp, 0, 0);
}
void HandleGLPaint(object sender, System.EventArgs e)
{
canvas2d.SmoothMode = CanvasSmoothMode.Smooth;
canvas2d.StrokeColor = PixelFarm.Drawing.Color.Black;
canvas2d.ClearColorBuffer();
//example
canvasPainter.FillColor = PixelFarm.Drawing.Color.Black;
canvasPainter.FillRectLBWH(20, 20, 150, 150);
//load bmp image
//-------------------------------------------------------------------------
if (exampleBase != null)
{
exampleBase.Draw(canvasPainter);
}
miniGLControl.SwapBuffers();
}
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);
}
