private void GlControlLoad(object sender, EventArgs e)
{
GL.ClearColor(1, 1, 1, 1);
GL.Viewport(0, 0, glControl.Width, glControl.Height);
GL.ShadeModel(ShadingModel.Smooth);
GL.Hint(HintTarget.PolygonSmoothHint, HintMode.Nicest);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
_graph = new CaptureGraph();
_loaded = true;
}
private void GlControlPaint(object sender, PaintEventArgs e)
{
if (!_loaded)
{
GL.ClearColor(Color4.LightSteelBlue);
GL.Clear(ClearBufferMask.ColorBufferBit);
}
else if (!_bound)
{
GL.ClearColor(Color4.SteelBlue);
GL.Clear(ClearBufferMask.ColorBufferBit);
}
else if (_screenCap)
{
_screenCap = false;
SuspendLayout();
_graph.HideUI();
Size tmp = glControl.Size;
glControl.Size = new Size(2000, 750);
CanvasManager.ChangeViewportSize(glControl.Size);
GL.ClearColor(Color4.White);
GL.Clear(ClearBufferMask.ColorBufferBit);
_graph.DrawGraph();
Bitmap bmp = new Bitmap(glControl.Width, this.glControl.Height);
BitmapData data =
bmp.LockBits(glControl.ClientRectangle, ImageLockMode.WriteOnly,
System.Drawing.Imaging.PixelFormat.Format24bppRgb);
GL.Finish();
GL.ReadPixels(0, 0, this.glControl.Width, this.glControl.Height, PixelFormat.Bgr, PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
bmp.Save(_screenCapFile, ImageFormat.Png);
glControl.Size = tmp;
CanvasManager.ChangeViewportSize(glControl.Size);
_graph.ShowUI();
ResumeLayout();
}
else
{
GL.ClearColor(Color4.White);
GL.Clear(ClearBufferMask.ColorBufferBit);
_graph.DrawGraph();
}
glControl.SwapBuffers();
}
public void SetBackgroundColor(float r, float g, float b)
{
GL.ClearColor(new Color4(r, g, b, 1));
}