Cleaned up samples 7, 8, and 9 for chapter 18

Author: jurisgalang

chapter_18/07_loading_a_url_with_simpleml.rb

@@ -31,13 +31,12 @@ def draw
     @timer.start
   end
 
-  # When a request is finished the data the available 
-  # flag is set to true - and we get a chance to read
-  # the data returned by the request
+  # XXX: There are still issues related to events from imported library
+  #      so we call the net_event method ourselves
+  # When a request is finished the data the available flag is set to true 
+  # and we get a chance to read the data returned by the request
   if @request.available?
-    @html = @request.read_raw_source # Read the raw data
-    @back = 255                    # Reset background
-    puts "Request completed!"      # Print message 
+    net_event(@request)
   end
 
   # Draw some lines with colors based on characters from data retrieved
@@ -57,16 +56,13 @@ def draw
   @back    = constrain(@back - 1, 0, 255)
 end
 
-# XXX: There are still issues related to events from imported library
-#      so we're not implementing this yet.
 # When a request is finished the data is received in the netEvent() 
 # function which is automatically called whenever data is ready.
-#def net_event(ml) 
-#  @html = ml.readRawSource      # Read the raw data
-#  @back = 255                   # Reset background
-#  # XXX: was println("Request completed!");
-#  puts "Request completed!"     # Print message 
-#end
+def net_event(ml) 
+  @html = ml.readRawSource      # Read the raw data
+  @back = 255                   # Reset background
+  puts "Request completed!"     # Print message 
+end
 
 #
 # Timer Class from Chapter 10

chapter_18/08_loading_xml_with_simpleml.rb

@@ -15,26 +15,22 @@ def setup
 end
 
 def draw
-  # When a request is finished the data the available 
-  # flag is set to true - and we get a chance to read
-  # the data returned by the request
+  # XXX: There are still issues related to events from imported library
+  #      so we call the net_event method ourselves
+  # When a request is finished the data the available flag is set to true 
+  # and we get a chance to read the data returned by the request
   if @request.available?
-    # Retrieving an array of all XML elements inside "  title*  " tags
-    headlines = @request.get_element_array("title")
-    # XXX: was println(headlines[i]);
-    headlines.each {|line| puts line }
-    no_loop # Nothing to see here
+    net_event(@request)
+    no_loop
   end
 end
 
-# XXX: There are still issues related to events from imported library
-#      so we're not implementing this yet.
 # When a request is finished the data is received in the netEvent() 
 # function which is automatically called whenever data is ready.
-# def net_event(ml)
-#   # Retrieving an array of all XML elements inside "  title*  " tags
-#   headlines = ml.getElementArray("title")
-#   headlines.each do |headline|
-#     puts headline # XXX: was println(headlines[i]);
-#   end
-# end
+def net_event(ml)
+  # Retrieving an array of all XML elements inside "  title*  " tags
+  headlines = ml.getElementArray("title")
+  headlines.each do |headline|
+    puts headline # XXX: was println(headlines[i]);
+  end
+end

chapter_18/09_using_processings_xml_library.rb

@@ -55,21 +55,6 @@ def initialize(r, g, diameter)
     @diameter = diameter
   end
 
-  # XXX: Unused - probably best to remove instead
-  # True or False if point is inside circle
-  #def rollover(mx, my)
-  #  return $app.dist(mx, my, @x, @y) < @diameter / 2
-  #end
-  
-  
-  # XXX: Unused - probably best to remove instead
-  # Change Bubble variables
-  #def change
-  #  @r = $app.constrain(@r + $app.random(-10, 10), 0, 255)
-  #  @g = $app.constrain(@g + $app.random(-10, 10), 0, 255)
-  #  @diameter = $app.constrain(@diameter + $app.random(-2, 4), 4, 72)
-  #end
-
   # Display Bubble
   def display
     $app.stroke 0