import wx
import wx.xrc as xrc
#----------------------------------------------------------------------
resourceText = r'''<?xml version="1.0"?>
<resource>
<!-- Notice that the class IS a standard wx class, and a custom
subclass is specified as "moduleName.ClassName" Try changing
the classname to one that does not exist and see what happens -->
<object class="wxPanel" subclass="XmlResourceSubclass.MyCustomPanel" name="MyPanel">
<size>200,100</size>
<object class="wxStaticText" name="label1">
<label>This panel is a custom class derived from wx.Panel,\nand is loaded by a custom XmlResourceHandler.</label>
<pos>10,10</pos>
</object>
</object>
</resource>
'''
#----------------------------------------------------------------------
class MyCustomPanel(wx.Panel):
def __init__(self):
p = wx.PrePanel()
# the Create step is done by XRC.
self.PostCreate(p)
self.Bind(wx.EVT_WINDOW_CREATE, self.OnCreate)
self.Bind(wx.EVT_SIZE, self.OnSize)
def OnCreate(self, evt):
# This is the little bit of customization that we do for this
# silly example. It could just as easily have been done in
# the resource. We do it in the EVT_WINDOW_CREATE handler
# because the window doesn't really exist yet in the __init__.
if self is evt.GetEventObject():
t = wx.StaticText(self, -1, "MyCustomPanel")
f = t.GetFont()
f.SetWeight(wx.BOLD)
f.SetPointSize(f.GetPointSize()+2)
t.SetFont(f)
self.t = t
# On OSX the EVT_SIZE happens before EVT_WINDOW_CREATE !?!
# so give it another kick
wx.CallAfter(self.OnSize, None)
evt.Skip()
def OnSize(self, evt):
if hasattr(self, 't'):
sz = self.GetSize()
w, h = self.t.GetTextExtent(self.t.GetLabel())
self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2))
#----------------------------------------------------------------------
class TestPanel(wx.Panel):
def __init__(self, parent, log):
self.log = log
wx.Panel.__init__(self, parent, -1)
# make the components
label = wx.StaticText(self, -1, "The lower panel was built from this XML:")
label.SetFont(wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD))
text = wx.TextCtrl(self, -1, resourceText,
style=wx.TE_READONLY|wx.TE_MULTILINE)
text.SetInsertionPoint(0)
line = wx.StaticLine(self, -1)
# Load the resource
res = xrc.EmptyXmlResource()
res.LoadFromString(resourceText)
# Now create a panel from the resource data
panel = res.LoadPanel(self, "MyPanel")
# and do the layout
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(label, 0, wx.EXPAND|wx.TOP|wx.LEFT, 5)
sizer.Add(text, 1, wx.EXPAND|wx.ALL, 5)
sizer.Add(line, 0, wx.EXPAND)
sizer.Add(panel, 1, wx.EXPAND|wx.ALL, 5)
self.SetSizer(sizer)
self.SetAutoLayout(True)
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, log)
return win
#----------------------------------------------------------------------
overview = """<html><body>
<h2><center>wx.XmlResourceSubclass</center></h2>
Sometimes it is necessary to use custom classes, but you still want
them to be created from XRC. The subclass XRC attribute allows you to
do that.
</body></html>
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])