public void Render()
{
if ((null == Label) || ("" == Label))
{
return;
}
if (NeedToRenderTexture)
{
using (var Bitmap = new Bitmap(Width, Height)) {
var Rectangle = new Rectangle(0, 0, Bitmap.Width, Bitmap.Height);
using (Graphics Graphics = Graphics.FromImage(Bitmap)) {
Graphics.Clear(System.Drawing.Color.Transparent);
Graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
Graphics.DrawString(Label, Font, Brushes.White, Rectangle);
if (null != Texture)
{
Texture.Dispose();
}
Texture = new Texture(Bitmap);
}
}
NeedToRenderTexture = false;
}
Texture.Bind();
GL.Color4(Color);
GL.Begin(BeginMode.Quads);
GL.TexCoord2(0, 0);
GL.Vertex2(0, 0);
GL.TexCoord2((float)Texture.Width / Texture.PotWidth, 0);
GL.Vertex2(Width, 0);
GL.TexCoord2((float)Texture.Width / Texture.PotWidth, (float)Texture.Height / Texture.PotHeight);
GL.Vertex2(Width, Height);
GL.TexCoord2(0, (float)Texture.Height / Texture.PotHeight);
GL.Vertex2(0, Height);
GL.End();
}
private void RenderBackground()
{
TextureBackground.Bind();
GL.Color4(Color4.White);
GL.Begin(BeginMode.Quads);
GL.TexCoord2(0, 0);
GL.Vertex2(0, 0);
GL.TexCoord2((float)ClientRectangle.Width / TextureBackground.Width, 0);
GL.Vertex2(ProjectionWidth, 0);
GL.TexCoord2((float)ClientRectangle.Width / TextureBackground.Width, (float)ClientRectangle.Height / TextureBackground.Height);
GL.Vertex2(ProjectionWidth, ProjectionHeight);
GL.TexCoord2(0, (float)ClientRectangle.Height / TextureBackground.Height);
GL.Vertex2(0, ProjectionHeight);
GL.End();
}
