| public CreateSimilar ( Cairo content, int width, int height ) : Cairo.Surface | ||
| content | Cairo | |
| width | int | |
| height | int | |
| Результат | Cairo.Surface | |
public ImageInfo(ImageInfo info, Widget w, Gdk.Rectangle bounds)
{
Cairo.Surface similar = CairoUtils.CreateSurface(w.GdkWindow);
Bounds = bounds;
Surface = similar.CreateSimilar(Content.ColorAlpha, Bounds.Width, Bounds.Height);
Context ctx = new Context(Surface);
ctx.Matrix = info.Fill(Bounds);
Pattern p = new SurfacePattern(info.Surface);
ctx.Source = p;
ctx.Paint();
((IDisposable)ctx).Dispose();
p.Destroy();
}
public virtual void EnsureSurfaceModel (Surface reference)
{
if (disposed)
return;
if (reference == null)
throw new ArgumentNullException ("Reference Surface", "Reference Surface may not be null");
bool hadInternal = HasInternal;
Surface last = null;
if (hadInternal)
last = Internal;
// we dont need to copy to a model we are already on
if (hadInternal && reference.SurfaceType == Internal.SurfaceType)
return;
Internal = reference.CreateSimilar (Cairo.Content.ColorAlpha, Width, Height);
if (hadInternal) {
using (Cairo.Context cr = new Cairo.Context (Internal)) {
last.Show (cr, 0, 0);
(cr.Target as IDisposable).Dispose ();
}
if (context != null) {
(context as IDisposable).Dispose ();
context = null;
}
(last as IDisposable).Dispose ();
last.Destroy ();
}
}
