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[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 blue panel is a class derived from wx.Panel
18 and is loaded by a using a subclass attribute of the object tag.</label>
19 <pos>10,10</pos>
20 </object>
21 </object>
22 </resource>
23 '''
24
25 #----------------------------------------------------------------------
26
27 class MyCustomPanel(wx.Panel):
28 def __init__(self):
29 p = wx.PrePanel()
30 # the Create step is done by XRC.
31 self.PostCreate(p)
32 self.Bind(wx.EVT_WINDOW_CREATE, self.OnCreate)
33 self.Bind(wx.EVT_SIZE, self.OnSize)
34
35
36 def OnCreate(self, evt):
37 # This is the little bit of customization that we do for this
38 # silly example. It could just as easily have been done in
39 # the resource. We do it in the EVT_WINDOW_CREATE handler
40 # because the window doesn't really exist yet in the __init__.
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
48 def OnSize(self, evt):
49 sz = self.GetSize()
50 w, h = self.t.GetTextExtent(self.t.GetLabel())
51 self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2))
52
53 #----------------------------------------------------------------------
54
55
56 class TestPanel(wx.Panel):
57 def __init__(self, parent, log):
58 self.log = log
59 wx.Panel.__init__(self, parent, -1)
60
61 # make the components
62 label = wx.StaticText(self, -1, "The lower panel was built from this XML:")
63 label.SetFont(wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD))
64
65 text = wx.TextCtrl(self, -1, resourceText,
66 style=wx.TE_READONLY|wx.TE_MULTILINE)
67 text.SetInsertionPoint(0)
68
69 line = wx.StaticLine(self, -1)
70
71 # Load the resource
72 res = xrc.EmptyXmlResource()
73 res.LoadFromString(resourceText)
74
75 # Now create a panel from the resource data
76 panel = res.LoadPanel(self, "MyPanel")
77
78 # and do the layout
79 sizer = wx.BoxSizer(wx.VERTICAL)
80 sizer.Add(label, 0, wx.EXPAND|wx.TOP|wx.LEFT, 5)
81 sizer.Add(text, 1, wx.EXPAND|wx.ALL, 5)
82 sizer.Add(line, 0, wx.EXPAND)
83 sizer.Add(panel, 1, wx.EXPAND|wx.ALL, 5)
84
85 self.SetSizer(sizer)
86 self.SetAutoLayout(True)
87
88
89 #----------------------------------------------------------------------
90
91 def runTest(frame, nb, log):
92 win = TestPanel(nb, log)
93 return win
94
95 #----------------------------------------------------------------------
96
97
98
99 overview = """<html><body>
100 <h2><center>wx.XmlResourceSubclass</center></h2>
101
102 Sometimes it is necessary to use custom classes, but you still want
103 them to be created from XRC. The subclass XRC attribute allows you to
104 do that.
105
106 </body></html>
107 """
108
109
110
111 if __name__ == '__main__':
112 import sys,os
113 import run
114 run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
115