The Rabbit Feed http://furui.org/blog Jeff's Log Mon, 25 Dec 2006 22:57:05 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Rounded Corners in Rails (updated!) http://furui.org/blog/2006/12/25/rounded-corners-in-rails-updated/ http://furui.org/blog/2006/12/25/rounded-corners-in-rails-updated/#comments Mon, 25 Dec 2006 22:57:05 +0000 furui http://furui.org/blog/2006/12/25/rounded-corners-in-rails-updated/ Here’s a gift for everyone.

In my last entry, I posted a rounded corners implementation in Rails using the RMagick gem. I have since updated it do take advantage of fragment caching. I also added in a CAPTCHA implementation and an animated spinner generator.

Enjoy!

Download it here (hot and fresh straight out of my application): http://furui.org/tools_controller.rb

Check out the corner generator here: http://www.furui.org/testbench/tools/roundedcorners?c=red&w=25&h=25

Check out the spinner generator here: http://www.furui.org/testbench/tools/spinner

The CAPTCHA generator doesn’t work with my hosting provider.

]]> http://furui.org/blog/2006/12/25/rounded-corners-in-rails-updated/feed/ 1 Rounded Corners in Rails http://furui.org/blog/2006/12/18/rounded-corners-in-rails/ http://furui.org/blog/2006/12/18/rounded-corners-in-rails/#comments Mon, 18 Dec 2006 08:57:59 +0000 furui http://furui.org/blog/2006/12/18/rounded-corners-in-rails/ Here is a controller I wrote that spits out rounded corners. It utilizes RMagick and operates nearly identical (width and height limited to 256) to the Google implementation as discovered by xach on LiveJournal.

You can see it below (or see it in action), or grab it from here: http://furui.org/tools_controller.rb

If you use it or see it in the wild, post a comment here. Thanks!

  1. # Rails Graphics Tools
  2. # (c) 2006 Jeffrey Davis
  3.  
  4. class ToolsController < ApplicationController
  5.  
  6. # Require the RMagick library and include its namespace
  7. require ‘RMagick’
  8. include Magick
  9.  
  10. def roundedcorners
  11. # Rounded Corners similar to Google’s implementation for Groups Beta
  12.  
  13. # Don’t render a layout.
  14. render :layout => false
  15.  
  16. # Retrieve the background color
  17. bgcolor = params[:bc]
  18. # If the background color wasn’t specified, use a transparent color
  19. if bgcolor == nil
  20. bgcolor = ‘transparent’
  21. end
  22. # If this is not a CSS2 color, then it must be a hex value.
  23. if bgcolor.match(‘[g-zG-Z]‘)
  24. else
  25. bgcolor = "#" + bgcolor
  26. end
  27.  
  28. # Retrieve the color
  29. fgcolor = params[:c]
  30. # If this is not a CSS2 color, then it must be a hex value.
  31. if fgcolor.match(‘[g-zG-Z]‘)
  32. else
  33. fgcolor = "#" + fgcolor
  34. end
  35.  
  36. # Retrive the size of the image
  37. width = params[:w]
  38. height = params[:h]
  39.  
  40. # If size wasn’t specified, set it to the default of 8
  41. if width == nil
  42. width = 8
  43. else
  44. width = width.to_i
  45. end
  46. if height == nil
  47. height = 8
  48. else
  49. height = height.to_i
  50. end
  51.  
  52. # Create a new image and set the background color
  53. img = Image.new(256,256) {
  54. self.background_color = bgcolor
  55. }
  56.  
  57. # Create a new drawing object
  58. gc = Draw.new
  59.  
  60. # Draw a circle in the upper left corner
  61. gc.fill(fgcolor)
  62. gc.stroke(fgcolor)
  63. gc.circle(0,0,0,255)
  64.  
  65. # Write the drawing to the image
  66. gc.draw(img)
  67.  
  68. # Check the orientation of the corner, and flip/flop accordingly
  69. case params[:a]
  70. when ‘tl’
  71. img.flip!
  72. img.flop!
  73. when ‘bl’
  74. img.flop!
  75. when ‘br’
  76. when ‘tr’
  77. img.flip!
  78. else
  79. img.flip!
  80. img.flop!
  81. end
  82.  
  83. # Scale the image to the correct width and height
  84. img.scale!(width,height)
  85.  
  86. # Write the image to a blob
  87. blob = img.to_blob() {
  88. self.format = ‘PNG’
  89. self.depth = 8
  90. }
  91.  
  92. # Send the blob to the client
  93. send_data blob, :type => ‘image/png’, :disposition => ‘inline’
  94. end
  95. end
]]> http://furui.org/blog/2006/12/18/rounded-corners-in-rails/feed/ 8 About http://furui.org/blog/2006/12/06/about/ http://furui.org/blog/2006/12/06/about/#comments Wed, 06 Dec 2006 22:04:51 +0000 furui http://furui.org/blog/about/ http://furui.org

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