mirror of
https://github.com/wxWidgets/Phoenix.git
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558fcfa5a3
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@75686 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
134 lines
3.8 KiB
Python
134 lines
3.8 KiB
Python
#!/usr/bin/env python
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import wx
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try:
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import wx.lib.wxcairo
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import cairo
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haveCairo = True
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except ImportError:
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haveCairo = False
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from math import pi as M_PI # used by many snippets
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from snippets import snip_list, snippet_normalize
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from Main import opj, DemoCodeEditor
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#----------------------------------------------------------------------
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# TODO: Add the ability for the user to edit and render their own snippet
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class DisplayPanel(wx.Panel):
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def __init__(self, parent):
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wx.Panel.__init__(self, parent, style=wx.BORDER_SIMPLE)
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self.Bind(wx.EVT_PAINT, self.OnPaint)
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self.curr_snippet = ''
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def OnPaint(self, evt):
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dc = wx.PaintDC(self)
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if self.curr_snippet:
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width, height = self.GetClientSize()
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cr = wx.lib.wxcairo.ContextFromDC(dc)
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exec(self.curr_snippet, globals(), locals())
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def SetSnippet(self, text):
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self.curr_snippet = text
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self.Refresh()
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class TestPanel(wx.Panel):
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def __init__(self, parent, log):
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self.log = log
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wx.Panel.__init__(self, parent, -1)
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self.lb = wx.ListBox(self, choices=snip_list)
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self.canvas = DisplayPanel(self)
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self.editor = DemoCodeEditor(self, style=wx.BORDER_SIMPLE)
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self.editor.SetEditable(False)
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self.Bind(wx.EVT_LISTBOX, self.OnListBoxSelect, self.lb)
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sizer = wx.BoxSizer(wx.HORIZONTAL)
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sizer.Add(self.lb, 0, wx.EXPAND)
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sizer.Add((15,1))
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vbox = wx.BoxSizer(wx.VERTICAL)
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vbox.Add(self.canvas, 1, wx.EXPAND)
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vbox.Add((1, 15))
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vbox.Add(self.editor, 1, wx.EXPAND)
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sizer.Add(vbox, 1, wx.EXPAND)
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border = wx.BoxSizer()
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border.Add(sizer, 1, wx.EXPAND|wx.ALL, 30)
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self.SetSizer(border)
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def OnListBoxSelect(self, evt):
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snippet_file = opj('snippets/%s.py' % evt.GetString())
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text = file(snippet_file).read()
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self.canvas.SetSnippet(text)
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self.editor.SetValue(text)
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#----------------------------------------------------------------------
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if not haveCairo:
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from wx.lib.msgpanel import MessagePanel
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def runTest(frame, nb, log):
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win = MessagePanel(nb, 'This demo requires the Pycairo package,\n'
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'or there is some other unmet dependency.',
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'Sorry', wx.ICON_WARNING)
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return win
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else:
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def runTest(frame, nb, log):
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win = TestPanel(nb, log)
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return win
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#----------------------------------------------------------------------
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if haveCairo:
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extra = "\n<h3>wx.lib.wxcairo</h3>\n%s" % (
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wx.lib.wxcairo.__doc__.replace('\n\n', '\n<p>'))
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else:
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extra = '\n<p>See the docstring in the wx.lib.wxcairo module for details about installing dependencies.'
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overview = """<html><body>
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<h2><center>Cairo Integration</center></h2>
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The wx.lib.wxcairo module provides a bit of glue that will allow you to
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use the Pycairo package drawing directly on wx.DC's.
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<p> This sample draws the standard 'snippet' examples that come with
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the Pycairo pacakge, and a few others. The C version of the samples
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can be seen at http://cairographics.org/samples/
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<p> In most snippets you'll see a call to a snippet_normalize()
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function. This is part of the demo and not part of Cairo. It is
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simply scaling the context such that the range of 0.0 to 1.0 is the
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min(width, height) of the window in pixels. In other words, it allows
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the rendering code to use a range or 0.0 to 1.0 and it will always fit
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in the drawing area. (Try resizing the demo and reselecting a snippet
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to see this.)
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<pre>
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def snippet_normalize(ctx, width, height):
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size = min(width, height)
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ctx.scale(size, size)
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ctx.set_line_width(0.04)
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</pre>
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%s
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</body></html>
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""" % extra
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if __name__ == '__main__':
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import sys,os
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import run
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run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
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