/// <summary>
/// Draws the specified portion of the specified <see cref="T:System.Drawing.Image"/> at the specified location and with the specified size.
/// </summary>
/// <param name="image"><see cref="T:System.Drawing.Image"/> to draw. </param>
/// <param name="destRect"><see cref="T:System.Drawing.RectangleF"/> structure that specifies the location and size of the drawn image. The image is scaled to fit the rectangle. </param>
/// <param name="srcRect"><see cref="T:System.Drawing.RectangleF"/> structure that specifies the portion of the <paramref name="image"/> object to draw. </param>
/// <exception cref="T:System.ArgumentNullException"><paramref name="image"/> is null.</exception>
public override void DrawImage(Image image, RectangleF destRect, RectangleF srcRect)
{
DrawingGL.GLBitmap glbmp = ResolveForGLBitmap(image);
if (glbmp != null)
{
painter1.Canvas.DrawSubImage(glbmp, destRect.Left, srcRect.Top, srcRect.Width, srcRect.Height, destRect.Left, this.Height - destRect.Top);
}
}
/// <summary>
/// Draws the specified <see cref="T:System.Drawing.Image"/> at the specified location and with the specified size.
/// </summary>
/// <param name="image"><see cref="T:System.Drawing.Image"/> to draw. </param><param name="destRect"><see cref="T:System.Drawing.Rectangle"/> structure that specifies the location and size of the drawn image. </param><exception cref="T:System.ArgumentNullException"><paramref name="image"/> is null.</exception><PermissionSet><IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence"/></PermissionSet>
public override void DrawImage(Image image, RectangleF destRect)
{
//1. image from outside
//resolve to internal presentation
DrawingGL.GLBitmap glbmp = ResolveForGLBitmap(image);
if (glbmp != null)
{
painter1.Canvas.DrawImage(glbmp, destRect.X, this.Height - destRect.Y, destRect.Width, destRect.Height);
}
}
DrawingGL.GLBitmap ResolveForGLBitmap(Image image)
{
var cacheBmp = Image.GetCacheInnerImage(image) as DrawingGL.GLBitmap;
if (cacheBmp != null)
{
return(cacheBmp);
}
else
{
//TODO: review here
//we should create 'borrow' method ? => send direct exact ptr to img buffer
//for now, create a new one -- after we copy we, don't use it
var req = new Image.ImgBufferRequestArgs(32, Image.RequestType.Copy);
image.RequestInternalBuffer(ref req);
var glBmp = new DrawingGL.GLBitmap(image.Width, image.Height, req.OutputBuffer32, req.IsInvertedImage);
Image.SetCacheInnerImage(image, glBmp);
return(glBmp);
}
}
