[macruby-changes] [716] MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb

[source_changes at macosforge.org]

Revision: 716
          http://trac.macosforge.org/projects/ruby/changeset/716
Author:   rich at infoether.com
Date:     2008-11-07 11:27:22 -0800 (Fri, 07 Nov 2008)
Log Message:
-----------
add nsimage

Modified Paths:
--------------
    MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb

Modified: MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb
===================================================================
--- MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb	2008-11-07 18:32:21 UTC (rev 715)
+++ MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb	2008-11-07 19:27:22 UTC (rev 716)
@@ -64,6 +64,13 @@
         options[:type] = :context
         Canvas.new(options, &block)
       end
+      
+      def for_current_context(options={}, &block)
+        options[:type] = :context
+        options[:context] = NSGraphicsContext.currentContext.graphicsPort
+        Canvas.new(options, &block)
+      end
+      
     end
   
     # create a new canvas with the given width, height, and output filename (pdf, png, jpg, gif, or tif)
@@ -604,7 +611,13 @@
   
   
     # SAVING/EXPORTING
-  
+    
+    def nsimage
+      image = NSImage.alloc.init
+      image.addRepresentation(NSBitmapImageRep.alloc.initWithCGImage(cgimage))
+      image
+    end
+    
     # return a CGImage of the canvas for reprocessing (only works if using a bitmap context)
     def cgimage
       CGBitmapContextCreateImage(@ctx)  # => CGImageRef (works with bitmap context only)
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