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+<meta name="generator" content="Docutils 0.3.1: http://docutils.sourceforge.net/" />
+<title>Example Programs Using wxPython</title>
+<meta name="author" content="Patrick K. O'Brien" />
+<meta name="organization" content="Orbtech" />
+<meta name="date" content="2003-07-02" />
+<link rel="stylesheet" href="default.css" type="text/css" />
+</head>
+<body>
+<div class="document" id="example-programs-using-wxpython">
+<h1 class="title">Example Programs Using wxPython</h1>
+<h2 class="subtitle" id="a-survival-guide-for-the-post-wx-prefixed-world">A survival guide for the post-wx-prefixed world.</h2>
+<table class="docinfo" frame="void" rules="none">
+<col class="docinfo-name" />
+<col class="docinfo-content" />
+<tbody valign="top">
+<tr><th class="docinfo-name">Author:</th>
+<td>Patrick K. O'Brien</td></tr>
+<tr><th class="docinfo-name">Contact:</th>
+<td><a class="first last reference" href="mailto:pobrien@orbtech.com">pobrien@orbtech.com</a></td></tr>
+<tr><th class="docinfo-name">Organization:</th>
+<td><a class="first last reference" href="http://www.orbtech.com/">Orbtech</a></td></tr>
+<tr><th class="docinfo-name">Date:</th>
+<td>2003-07-02</td></tr>
+<tr><th class="docinfo-name">Revision:</th>
+<td>1.2</td></tr>
+</tbody>
+</table>
+<div class="contents topic" id="contents">
+<p class="topic-title"><a name="contents">Contents</a></p>
+<ul class="simple">
+<li><a class="reference" href="#introduction" id="id1" name="id1">Introduction</a></li>
+<li><a class="reference" href="#background-with-tongue-firmly-in-cheek" id="id2" name="id2">Background (with tongue firmly in cheek)</a></li>
+<li><a class="reference" href="#basic-program-example" id="id3" name="id3">Basic Program Example</a></li>
+<li><a class="reference" href="#hello-wxpython-example" id="id4" name="id4">Hello wxPython Example</a></li>
+</ul>
+</div>
+<div class="section" id="introduction">
+<h1><a class="toc-backref" href="#id1" name="introduction">Introduction</a></h1>
+<p>This document illustrates example programs using wxPython. All the
+examples make use of the new wx package syntax introduced in wxPython
+2.4.1, which is a bit different than older examples you might come
+across.</p>
+</div>
+<div class="section" id="background-with-tongue-firmly-in-cheek">
+<h1><a class="toc-backref" href="#id2" name="background-with-tongue-firmly-in-cheek">Background (with tongue firmly in cheek)</a></h1>
+<p>If something hits you on the head, don't run around screaming that the
+sky is falling. Instead, take a close look and see if it wasn't a
+"wx" prefix that hit you. Apparently, they're dropping off wxPython
+class names like flies dropping dead in the scorching heat of a
+summer's day.</p>
+<p>Yes, the world is changing, and even our little wxPython world must
+change with it. Then again, I'm not fond of pesky summertime flies,
+and I'm not too upset that the "wx" prefixes are going to bite the
+dust. I think it's for the best. But, being the kind, considerate
+person that I am, I decided to write this guide to make the wx
+namespace transition easier for everyone, even Chicken Little.</p>
+<div class="note">
+<p class="admonition-title">Note</p>
+<p>Say what?</p>
+<p>If you have no idea what I mean by the "wx namespace transition,"
+consider yourself lucky. You can simply use these examples to
+learn wxPython in its current state (beginning with wxPython
+version 2.4.1). All you need to know is that previous wxPython
+code used a slightly different syntax that some folks (including
+me) considered ugly. So we changed it. And that's when the sky
+starting falling...</p>
+<p>If you want more of the technical details, read the <a class="reference" href="wxPackage.html">wx package
+documentation</a>.</p>
+</div>
+<p>Rather than simply <strong>tell</strong> you that everything will be okay, I
+decided to <strong>show</strong> you that everything will be okay. To do that,
+I've created a bunch of example programs using the new wx package. I
+hope you like them.</p>
+</div>
+<div class="section" id="basic-program-example">
+<h1><a class="toc-backref" href="#id3" name="basic-program-example">Basic Program Example</a></h1>
+<p>It doesn't get much simpler than this. Every wxPython program needs
+an application and a frame. To encourage good coding habits, I've
+split them into separate modules. They don't do much, but they're a
+good starting point.</p>
+<p>I include a simple App class in the frame module because the PyWrap
+"wrapper" utility (<tt class="literal"><span class="pre">pywrap</span></tt>) only works with modules that contain an
+application class. So including a simple one in each of your frame
+modules allows you to use the PyWrap runtime wrapper and debug your
+frames independent of your full application.</p>
+<p>Here is the module (<tt class="literal"><span class="pre">frame.py</span></tt>) that defines the frame class:</p>
+<pre class="literal-block">
+#!/usr/bin/env python
+
+"""Basic frame class, with App for testing."""
+
+__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
+__cvsid__ = "$Id$"
+__revision__ = "$Revision$"[11:-2]
+
+import wx
+
+class Frame(wx.Frame):
+ """Frame class."""
+
+ def __init__(self, parent=None, id=-1, title='Title',
+ pos=wx.DefaultPosition, size=(400, 200)):
+ """Create a Frame instance."""
+ wx.Frame.__init__(self, parent, id, title, pos, size)
+
+class App(wx.App):
+ """Application class."""
+
+ def OnInit(self):
+ self.frame = Frame()
+ self.frame.Show()
+ self.SetTopWindow(self.frame)
+ return True
+
+def main():
+ app = App()
+ app.MainLoop()
+
+if __name__ == '__main__':
+ main()
+
+</pre>
+<p>And here is the module (<tt class="literal"><span class="pre">app.py</span></tt>) that defines the application class
+and imports the frame from <tt class="literal"><span class="pre">frame.py</span></tt>:</p>
+<pre class="literal-block">
+#!/usr/bin/env python
+
+"""Basic application class."""
+
+__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
+__cvsid__ = "$Id$"
+__revision__ = "$Revision$"[11:-2]
+
+import wx
+
+from frame import Frame
+
+class App(wx.App):
+ """Application class."""
+
+ def OnInit(self):
+ self.frame = Frame()
+ self.frame.Show()
+ self.SetTopWindow(self.frame)
+ return True
+
+def main():
+ app = App()
+ app.MainLoop()
+
+if __name__ == '__main__':
+ main()
+
+</pre>
+</div>
+<div class="section" id="hello-wxpython-example">
+<h1><a class="toc-backref" href="#id4" name="hello-wxpython-example">Hello wxPython Example</a></h1>
+<p>This program displays an image file (<tt class="literal"><span class="pre">wxPython.jpg</span></tt>) inside a frame
+sized to match the graphic.</p>
+<div class="figure">
+<p><img alt="screenshots/hello-win98.png" scale="100" src="screenshots/hello-win98.png" /></p>
+<p class="caption">Running <tt class="literal"><span class="pre">hello.py</span></tt> on Windows.</p>
+</div>
+<div class="figure">
+<p><img alt="screenshots/hello-linux.png" scale="100" src="screenshots/hello-linux.png" /></p>
+<p class="caption">Running <tt class="literal"><span class="pre">hello.py</span></tt> on Linux.</p>
+</div>
+<div class="figure">
+<p><img alt="screenshots/hello-mac.png" scale="100" src="screenshots/hello-mac.png" /></p>
+<p class="caption">Running <tt class="literal"><span class="pre">hello.py</span></tt> on Mac OS X.</p>
+</div>
+<p>Here is the source code for <tt class="literal"><span class="pre">hello.py</span></tt>:</p>
+<pre class="literal-block">
+#!/usr/bin/env python
+
+"""Hello, wxPython! program."""
+
+__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
+__cvsid__ = "$Id$"
+__revision__ = "$Revision$"[11:-2]
+
+import wx
+
+class Frame(wx.Frame):
+ """Frame class that displays an image."""
+
+ def __init__(self, image, parent=None, id=-1,
+ pos=wx.DefaultPosition, title='Hello, wxPython!'):
+ """Create a Frame instance and display image."""
+ temp = image.ConvertToBitmap()
+ size = temp.GetWidth(), temp.GetHeight()
+ wx.Frame.__init__(self, parent, id, title, pos, size)
+ self.bmp = wx.StaticBitmap(parent=self, id=-1, bitmap=temp)
+
+class App(wx.App):
+ """Application class."""
+
+ def OnInit(self):
+ wx.InitAllImageHandlers()
+ image = wx.Image('wxPython.jpg', wx.BITMAP_TYPE_JPEG)
+ self.frame = Frame(image)
+ self.frame.Show()
+ self.SetTopWindow(self.frame)
+ return True
+
+def main():
+ app = App()
+ app.MainLoop()
+
+if __name__ == '__main__':
+ main()
+
+</pre>
+</div>
+</div>
+<hr class="footer" />
+<div class="footer">
+Generated on: 2004-02-04 23:31 UTC.
+</div>
+</body>
+</html>
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