public void DrawGraph()
{
if (!_canvasReady)
{
return;
}
CanvasManager.SimpleShader2D.UseProgram();
GL.MatrixMode(OpenTK.Graphics.OpenGL.MatrixMode.Modelview);
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.Viewport((int)CanvasManager.CanvasLocationX, (int)CanvasManager.CanvasLocationY, (int)CanvasManager.CanvasWidth, (int)CanvasManager.CanvasHeight);
GL.Scissor((int)CanvasManager.CanvasLocationX, (int)CanvasManager.CanvasLocationY, (int)CanvasManager.CanvasWidth, (int)CanvasManager.CanvasHeight);
GL.Enable(EnableCap.ScissorTest);
var scale = new GraphScaleData(_scaleData);
if (_transitionState == 1) //reposition
{
float factor = _transitionCounter / Interval;
//x difference
scale.XShift = _scaleData.XShift + (_transitionCanvas.ScaleData.XShift - _scaleData.XShift) * factor;
//scale difference
scale.BaseScale = _scaleData.BaseScale + (_transitionCanvas.ScaleData.BaseScale - _scaleData.BaseScale) * factor;
}
else if (_transitionState == 2)
{
scale.XShift = _transitionCanvas.ScaleData.XShift;
scale.BaseScale = _transitionCanvas.ScaleData.BaseScale;
}
else
{
scale.XShift = _scaleData.XShift;
scale.BaseScale = _scaleData.BaseScale;
}
if (_transitionState == 2) //blend colors
{
//DataVolume.AlphaBlend = 1 - _transitionCounter / Interval;
//PacketCount.AlphaBlend = 1 - _transitionCounter / Interval;
CanvasCollection.AlphaBlend(1 - _transitionCounter / Interval);
}
_background.Draw(scale.XShift);
////draw data volume
//DataVolume.Draw(scale);
////draw packet count
//PacketCount.Draw(scale);
//
CanvasCollection.DrawCollection(scale);
if (_transitionState == 2)
{
//DataVolume.DrawBackBuffer(scale.BaseScale, _transitionCanvas.ScaleData.MaxData, scale.XShift);
//PacketCount.DrawBackBuffer(scale.BaseScale, _transitionCanvas.ScaleData.MaxCount, scale.XShift);
CanvasCollection.DrawCollectionBackBuffer(scale);
}
//////reset viewport
GL.Viewport(0, 0, CanvasManager.ControlWidth, CanvasManager.ControlHeight);
GL.Disable(EnableCap.ScissorTest);
Matrix4 transform = CanvasManager.ViewportTransform;
GL.UniformMatrix4(CanvasManager.SimpleShader2D.UniformTransform, false, ref transform);
GL.Uniform4(CanvasManager.SimpleShader2D.UniformColor, Color4.Black);
GL.LineWidth(2f);
Border.BeginDraw();
Border.Draw(BeginMode.LineLoop);
Border.EndDraw();
//transform.Invert();
//float left = -(transform.M11 - transform.M41);
//float right = transform.M11 + transform.M41;
_yAxis.Draw(_scaleData.MaxData);
_xAxis.Draw(scale.XShift, scale.BaseScale);
}