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+---
+date: "2005-03-04T01:38:28Z"
+title: Profanity!
+---
+
+<p>
+The last week or so I've been working on <a href='http://cvs.pablotron.org/?m=profanity'>Profanity</a>, a <a href='http://ruby-lang.org/'>Ruby</a> windowing library for Curses.  It's features include relative window geometry, a include an <acronym title='HyperText Markup Language'>HTML</acronym>-like markup for styled text, and proper terminal resizes support.  I've whipped up a couple of example movies to demonstrate the geometry engine and styled text:
+</p>
+
+<ul>
+<li><a href='/download/profanity-20050228.mpg'><code>profanity-2050228.mpg</code></a>: An example of the geometry engine handling terminal resizes.</li>
+<li><a href='/download/profanity-20050228.mpg'><code>profanity-2050228.mpg</code></a>: An example of window constraints, window gravity, and styled text (notice how styles can be applied to window titles as well as contents).</li>
+</ul>
+
+<p>
+By the way, if you're having trouble with these movies, try them in <a href='http://www.mplayerhq.hu/'>MPlayer</a> (I'm usually an <a href='http://xine.sf.net/'>Xine</a> guy myself, but it seems to mangle these too).  In the interest of staving of the torch- and pitchfork-wielding mob of people who can't get either movie to play, here are a few still shots from each (click the thumbnails for the full image):
+</p>
+
+<p>
+<a href='/software/profanity/demos/20050228-shots/00.png'><img src='/software/profanity/demos/20050228-shots/thumb/00.png' width='160' height='164' title='profanity 20050228-00' alt='profanity 20050228-00' border='0' /></a>
+<a href='/software/profanity/demos/20050228-shots/01.png'><img src='/software/profanity/demos/20050228-shots/thumb/01.png' width='160' height='164' title='profanity 20050228-01' alt='profanity 20050228-01' border='0' /></a>
+<a href='/software/profanity/demos/20050228-shots/02.png'><img src='/software/profanity/demos/20050228-shots/thumb/02.png' width='160' height='164' title='profanity 20050228-02' alt='profanity 20050228-02' border='0' /></a>
+<a href='/software/profanity/demos/20050228-shots/03.png'><img src='/software/profanity/demos/20050228-shots/thumb/03.png' width='160' height='164' title='profanity 20050228-03' alt='profanity 20050228-03' border='0' /></a>
+
+<a href='/software/profanity/demos/20050301-shots/00.png'><img src='/software/profanity/demos/20050301-shots/thumb/00.png' width='160' height='164' title='profanity 20050301-00' alt='profanity 20050301-00' border='0' /></a>
+<a href='/software/profanity/demos/20050301-shots/01.png'><img src='/software/profanity/demos/20050301-shots/thumb/01.png' width='160' height='164' title='profanity 20050301-01' alt='profanity 20050301-01' border='0' /></a>
+<a href='/software/profanity/demos/20050301-shots/02.png'><img src='/software/profanity/demos/20050301-shots/thumb/02.png' width='160' height='164' title='profanity 20050301-02' alt='profanity 20050301-02' border='0' /></a>
+</p>
+
+<p>
+Finally, here is a <a href='http://cvs.pablotron.org/cgi-bin/viewcvs.cgi/profanity/doc/examples/hello.rb?rev=1.1&view=auto'>simple example from <acronym title='Concurrent Versioning System'>CVS</acronym>)</a> which demonstrates what Profanity code looks like:
+</p>
+
+<div style='font-size: 75%; background-color: #eee; padding: 10px;
+margin: 10px 30px 10px 30px; border: 1px solid black;'>
+<pre>
+<code>
+require 'profanity'
+
+# create a basic window class
+class HelloWorldWindow &lt; Profanity::Window
+  # contents of this window
+  LINES = [
+    &quot;&lt;center&gt;Welcome to &lt;u&gt;Profanity&lt;/u&gt;!&lt;/center&gt;&quot;,
+    '&lt;center&gt;Press &lt;b&gt;Q&lt;/b&gt; or &lt;b&gt;ESC&lt;/b&gt; to quit.&lt;/center&gt;',
+  ]
+
+  # override Window#draw_contents for our own devious purposes
+  def draw_contents
+    clear
+    puts LINES
+  end
+end
+
+# create the profanity window manager
+wm = Profanity::WindowManager.new
+
+# create geometry, and fix height to 4 lines
+geom = Profanity::Geometry.new(0.5, 0.5, 0.7, 0.0)
+geom.height_absolute = 4
+
+# set gravity to center of the screen
+geom.gravity.x = geom.gravity.y = 0.5
+
+# create our window, show and refresh it
+win = HelloWorldWindow.new(wm, geom, 'Hello World')
+win.show; win.refresh
+
+# run until the user presses q, ctrl-c, or escape
+wm.run { |key| break if [?q, 27, Curses::KEY_CTRL_C].include?(key) }
+</code>
+</pre>
+</div>
+