src/sample53-4.rb @@ -2,7 +2,7 @@ Shoes Tutorial Note =================== **- For the Shoes App Rookie Creators -** -October 18th, 2009 by ashbb (Satoshi Asakawa), citizen428 (Michael Kohl), kotp (Victor H. Goff III) +October 20th, 2009 by ashbb (Satoshi Asakawa), citizen428 (Michael Kohl), kotp (Victor H. Goff III) **Note: Now under revising with Policeman!** @@ -54,7 +54,7 @@ Table of contents - [00529 UTF-8 (sample45.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00529_UTF-8.mdown) - [00530 Open a new app window (sample46.rb, sample48.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00530_Open_a_new_app_window.mdown) - [00531 Open the Shoes console window from your app (sample51.rb, sample55.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00531_Open_the_Shoes_console_window_from_your_app.mdown) - - [00532 Customize Shoes Class (sample53.rb, sample53-1.rb, sample53-2.rb, sample53-2.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00532_Customize_Shoes_Class.mdown) + - [00532 Customize Shoes Class (sample53.rb, sample53-1.rb, sample53-2.rb, sample53-3.rb, sample53-4.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00532_Customize_Shoes_Class.mdown) - [00533 Image Effects with blur method (sample54.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00533_Image_Effects_with_blur_method.mdown) - [00534 Video playback (sample59.rb, sample59-1.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00534_Video_playback.mdown) - [00535 Scope: local variable and instance variable (sample60.rb)](http://github.com/ashbb/shoes_tutorial_html/tree/master/mdowns/00535_Scope__local_variable_and_instance_variable.mdown) README.md @@ -1,5 +1,6 @@ Change log: ----------- +Oct 20th, 2009: Use class_eval to Customize Shoes Class (00532, gallery 9, 10) Oct 18th, 2009: Finished confiming all 132 sample codes with Policeman (0.r1263) Oct 17th, 2009: Confirmed 00508-00520 with Policeman (0.r1263) Oct 15th, 2009: Confirmed 00507 with Policeman (0.r1263) changelog.mdown @@ -79,7 +79,7 @@ Umm... I'm not sure Policeman changed the spec or .... bug. Not customize Shoes class, though... - # sample53-2.rb + # sample53-3.rb module ExImage def small self.style :width => self.width / 2, :height => self.height / 2 @@ -109,7 +109,31 @@ Not customize Shoes class, though... This code works well both with Policeman and Raisins. +**Solution** +It seems good to use `class_eval` instead of `class` like this: - - + # sample53-4.rb + Shoes::Image.class_eval do + def small + self.style :width => self.width / 2, :height => self.height / 2 + end + + def big + self.style :width => self.width * 2, :height => self.height * 2 + end + end + + PATH = '../images/yar.png' + + Shoes.app :width => 250, :height => 150 do + w, h = imagesize(PATH) + img = image PATH, :width => w, :height => h, :name => PATH.split('/').last + msg = para 'ready', :left => w, :top => h + every 3 do + img.style[:width] > w ? img.small : img.big + msg.text = "#{img.style[:name]} width is : #{img.style[:width]}" + "\n" + + "#{img.style[:name]} height is : #{img.style[:height]}" + end + end + mdowns/00532_Customize_Shoes_Class.mdown @@ -233,7 +233,7 @@ Look at the [online demo](http://www.rin-shun.com/rubylearning/shoes/scatter_pac # gallery9.rb # ScatterPack: Scatters like a school of fish - class Shoes::Shape + Shoes::Shape.class_eval do [:v, :flag].each do |m| define_method(m){style[m]} define_method(m.to_s + '='){|v| style m => v} @@ -388,7 +388,7 @@ Helper methods for writing the simple code: # gallery10-image.rb - class Shoes::Image + Shoes::Image.class_eval do [:vel, :pos].each do |m| define_method(m){style[m]} define_method("#{m}="){|arg| style m => arg} @@ -397,6 +397,7 @@ Helper methods for writing the simple code: [:x, :y].each_with_index{|m, i| define_method(m){pos[i].to_i}} end + **gallery10.png**  @@ -405,4 +406,6 @@ Helper methods for writing the simple code: Policeman --------- -Gallery 6, 7 and 8 worked well with Shoes-0.r1263. But Gallery 9 and 10 didn't... so far. +Gallery 6, 7 and 8 worked well with Shoes-0.r1263. + +Gallery 9 and 10 worked well after replaced `class` to `class_eval`. mdowns/01120_Fancy_Gallery_6-10.mdown @@ -1,5 +1,5 @@ # gallery10-image.rb -class Shoes::Image +Shoes::Image.class_eval do [:vel, :pos].each do |m| define_method(m){style[m]} define_method("#{m}="){|arg| style m => arg} src/gallery10-image.rb @@ -1,7 +1,7 @@ # gallery9.rb # ScatterPack: Scatters like a school of fish -class Shoes::Shape +Shoes::Shape.class_eval do [:v, :flag].each do |m| define_method(m){style[m]} define_method(m.to_s + '='){|v| style m => v} src/gallery9.rb @@ -1,4 +1,4 @@ -# sample53-2.rb +# sample53-3.rb module ExImage def small self.style :width => self.width / 2, :height => self.height / 2 src/sample53-3.rb @@ -2,7 +2,7 @@ Shoes Tutorial Note =================== **- For the Shoes App Rookie Creators -** -October 18th, 2009 by ashbb (Satoshi Asakawa), citizen428 (Michael Kohl), kotp (Victor H. Goff III) +October 20th, 2009 by ashbb (Satoshi Asakawa), citizen428 (Michael Kohl), kotp (Victor H. Goff III) **Note: Now under revising with Policeman!** tools/table_of_contents.txt 08c7455facd2e3ebc0796d28a9a770ff3464bc59 ashbb ashbbb@gmail.com http://github.com/ashbb/shoes_tutorial_html/commit/3b43183cb1258803d4e831372a7a7d81a17b7d3d 3b43183cb1258803d4e831372a7a7d81a17b7d3d 2009-10-20T06:09:08-07:00 2009-10-20T06:09:08-07:00 Use class_eval to Customize Shoes Class (00532, gallery 9, 10) cdc3df5a00335cc1569bdcc684fbddc1ec2ce224 ashbb ashbbb@gmail.com