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A way to make the DC classes in wxPython look like the ones in 2.5, so
[wxWidgets.git] / wxPython / demo / XmlResourceSubclass.py
1
2 import wx
3 import wx.xrc as xrc
4
5 #----------------------------------------------------------------------
6
7 resourceText = r'''<?xml version="1.0"?>
8 <resource>
9
10 <!-- Notice that the class IS a standard wx class, and a custom
11 subclass is specified as "moduleName.ClassName" Try changing
12 the classname to one that does not exist and see what happens -->
13
14 <object class="wxPanel" subclass="XmlResourceSubclass.MyCustomPanel" name="MyPanel">
15 <size>200,100</size>
16 <object class="wxStaticText" name="label1">
17 <label>This panel is a custom class derived from wx.Panel,\nand is loaded by a custom XmlResourceHandler.</label>
18 <pos>10,10</pos>
19 </object>
20 </object>
21 </resource>
22 '''
23
24 #----------------------------------------------------------------------
25
26 class MyCustomPanel(wx.Panel):
27 def __init__(self):
28 p = wx.PrePanel()
29 # the Create step is done by XRC.
30 self.PostCreate(p)
31 self.Bind(wx.EVT_WINDOW_CREATE, self.OnCreate)
32 self.Bind(wx.EVT_SIZE, self.OnSize)
33
34
35 def OnCreate(self, evt):
36 # This is the little bit of customization that we do for this
37 # silly example. It could just as easily have been done in
38 # the resource. We do it in the EVT_WINDOW_CREATE handler
39 # because the window doesn't really exist yet in the __init__.
40 if self is evt.GetEventObject():
41 t = wx.StaticText(self, -1, "MyCustomPanel")
42 f = t.GetFont()
43 f.SetWeight(wx.BOLD)
44 f.SetPointSize(f.GetPointSize()+2)
45 t.SetFont(f)
46 self.t = t
47 # On OSX the EVT_SIZE happens before EVT_WINDOW_CREATE !?!
48 # so give it another kick
49 wx.CallAfter(self.OnSize, None)
50 evt.Skip()
51
52 def OnSize(self, evt):
53 if hasattr(self, 't'):
54 sz = self.GetSize()
55 w, h = self.t.GetTextExtent(self.t.GetLabel())
56 print w, h
57 self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2))
58
59 #----------------------------------------------------------------------
60
61
62 class TestPanel(wx.Panel):
63 def __init__(self, parent, log):
64 self.log = log
65 wx.Panel.__init__(self, parent, -1)
66
67 # make the components
68 label = wx.StaticText(self, -1, "The lower panel was built from this XML:")
69 label.SetFont(wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD))
70
71 text = wx.TextCtrl(self, -1, resourceText,
72 style=wx.TE_READONLY|wx.TE_MULTILINE)
73 text.SetInsertionPoint(0)
74
75 line = wx.StaticLine(self, -1)
76
77 # Load the resource
78 res = xrc.EmptyXmlResource()
79 res.LoadFromString(resourceText)
80
81 # Now create a panel from the resource data
82 panel = res.LoadPanel(self, "MyPanel")
83
84 # and do the layout
85 sizer = wx.BoxSizer(wx.VERTICAL)
86 sizer.Add(label, 0, wx.EXPAND|wx.TOP|wx.LEFT, 5)
87 sizer.Add(text, 1, wx.EXPAND|wx.ALL, 5)
88 sizer.Add(line, 0, wx.EXPAND)
89 sizer.Add(panel, 1, wx.EXPAND|wx.ALL, 5)
90
91 self.SetSizer(sizer)
92 self.SetAutoLayout(True)
93
94
95 #----------------------------------------------------------------------
96
97 def runTest(frame, nb, log):
98 win = TestPanel(nb, log)
99 return win
100
101 #----------------------------------------------------------------------
102
103
104
105 overview = """<html><body>
106 <h2><center>wx.XmlResourceSubclass</center></h2>
107
108 Sometimes it is necessary to use custom classes, but you still want
109 them to be created from XRC. The subclass XRC attribute allows you to
110 do that.
111
112 </body></html>
113 """
114
115
116
117 if __name__ == '__main__':
118 import sys,os
119 import run
120 run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
121