add comment to NinePatchImage
Merge pull request #269 from lytico/9PatchCom

added comment to NinePatchImage
Use the correct project type for XamMac
Fix build when using old Cairo
[WPF] Fixed pattern rendering issues
[WPF] Additional fix for image patterns
Added some null checks
Adjust Drawing Origin for CairoContextBackend

Offset Context Transformation Matrix to allow for origin of ContextBackend.
Merge branch 'master' of git://github.com/hwthomas/xwt into hwthomas-master
[GTK] Canvas issue drawing fix

Adjust the drawing origin only when the canvas is not using its
own GdkWindow.
[WPF] Canvas: Clip the drawing area

Fixes issue when drawing outside the canvas bounds.