[macruby-changes] [2341] MacRuby/trunk/lib/hotcocoa

[source_changes at macosforge.org]

Revision: 2341
          http://trac.macosforge.org/projects/ruby/changeset/2341
Author:   mattaimonetti at gmail.com
Date:     2009-08-16 22:01:19 -0700 (Sun, 16 Aug 2009)
Log Message:
-----------
[HotCocoa Graphics] added an accessor for the canvas context (so a developer can use CG methods on it directly) and default filename so we can generate CGimages without passing a filename.

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

Modified: MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb
===================================================================
--- MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb	2009-08-17 04:13:27 UTC (rev 2340)
+++ MacRuby/trunk/lib/hotcocoa/graphics/canvas.rb	2009-08-17 05:01:19 UTC (rev 2341)
@@ -11,9 +11,13 @@
 #
 # Author::    James Reynolds  (mailto:drtoast at drtoast.com)
 # Copyright:: Copyright (c) 2008 James Reynolds
-# License::   Distributes under the same terms as Ruby
+# License::   Distributes under the same terms as Ruby 
 
+# In Quartz 2D, the canvas is often referred as the "page".
+# Overview of the underlying page concept available at:
+# http://developer.apple.com/documentation/GraphicsImaging/Conceptual/drawingwithquartz2d/dq_overview/dq_overview.html#//apple_ref/doc/uid/TP30001066-CH202-TPXREF101
 
+
 module HotCocoa::Graphics
 
   # drawing destination for writing a PDF, PNG, GIF, JPG, or TIF file
@@ -42,8 +46,12 @@
     
     DefaultOptions = {:quality => 0.8, :width => 400, :height => 400}
   
-    attr_accessor :width, :height
+    attr_accessor :width, :height  
     
+    # We make the context available so developers can directly use underlying CG methods
+    # on objects created by this wrapper
+    attr_reader :ctx
+    
     class << self
       def for_rendering(options={}, &block)
         options[:type] = :render
@@ -83,7 +91,7 @@
     
       @width = options[:width]
       @height = options[:height]
-      @output = options[:filename]
+      @output = options[:filename] || 'test'
       @stacksize = 0
       @colorspace = CGColorSpaceCreateDeviceRGB() # => CGColorSpaceRef
       @autoclosepath = false
@@ -131,7 +139,7 @@
       quality(options[:quality])   # set the compression default
       push  # save the pristine default default graphics state (retrieved by calling "reset")
       push  # create a new graphics state for the user to mess up
-      if block
+      if block_given?
         case block.arity
         when 0
           send(:instance_eval, &block)

Modified: MacRuby/trunk/lib/hotcocoa/graphics.rb
===================================================================
--- MacRuby/trunk/lib/hotcocoa/graphics.rb	2009-08-17 04:13:27 UTC (rev 2340)
+++ MacRuby/trunk/lib/hotcocoa/graphics.rb	2009-08-17 05:01:19 UTC (rev 2341)
@@ -11,8 +11,13 @@
 #
 # Author::    James Reynolds  (mailto:drtoast at drtoast.com)
 # Copyright:: Copyright (c) 2008 James Reynolds
-# License::   Distributes under the same terms as Ruby
+# License::   Distributes under the same terms as Ruby 
 
+# More information about Quartz 2D is available on the Apple's website:
+# http://developer.apple.com/documentation/GraphicsImaging/Conceptual/drawingwithquartz2d/dq_overview/dq_overview.html#//apple_ref/doc/uid/TP30001066-CH202-TPXREF101
+
+
+
 module HotCocoa;end # needed in case this is required without hotcocoa
 
 framework 'Cocoa'
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