2001-05-17 18:47:09 -04:00
|
|
|
|
|
|
|
|
from wxPython.wx import *
|
|
|
|
|
from wxPython.html import *
|
|
|
|
|
|
|
|
|
|
#----------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
BTN1 = wxNewId()
|
|
|
|
|
BTN2 = wxNewId()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class TestPanel(wxPanel):
|
|
|
|
|
def __init__(self, parent, log):
|
|
|
|
|
wxPanel.__init__(self, parent, -1)
|
|
|
|
|
self.log = log
|
|
|
|
|
|
|
|
|
|
sizer = wxBoxSizer(wxVERTICAL)
|
|
|
|
|
html = wxHtmlWindow(self, -1)
|
|
|
|
|
html.SetPage(overview)
|
|
|
|
|
sizer.Add(html, 1, wxEXPAND|wxALL, 5)
|
|
|
|
|
|
|
|
|
|
btns = wxBoxSizer(wxHORIZONTAL)
|
|
|
|
|
btns.Add(50, -1, 1, wxEXPAND)
|
|
|
|
|
btn1 = wxButton(self, BTN1, "Find My Alter-ego") # don't save a ref to this one
|
|
|
|
|
btns.Add(btn1)
|
|
|
|
|
btns.Add(50, -1, 1, wxEXPAND)
|
|
|
|
|
self.btn2 = wxButton(self, BTN2, "Find Myself")
|
|
|
|
|
btns.Add(self.btn2)
|
|
|
|
|
btns.Add(50, -1, 1, wxEXPAND)
|
|
|
|
|
|
2001-05-18 19:46:30 -04:00
|
|
|
sizer.Add(btns, 0, wxEXPAND|wxALL, 15)
|
2001-05-17 18:47:09 -04:00
|
|
|
|
|
|
|
|
self.SetSizer(sizer)
|
2003-03-25 01:35:27 -05:00
|
|
|
self.SetAutoLayout(True)
|
2001-05-17 18:47:09 -04:00
|
|
|
|
2001-10-20 23:56:07 -04:00
|
|
|
self.sizer = sizer # save it for testing later
|
|
|
|
|
|
2001-05-17 18:47:09 -04:00
|
|
|
EVT_BUTTON(self, BTN1, self.OnFindButton1)
|
|
|
|
|
EVT_BUTTON(self, BTN2, self.OnFindButton2)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def OnFindButton1(self, evt):
|
|
|
|
|
win = self.FindWindowById(BTN1)
|
|
|
|
|
if win is None:
|
|
|
|
|
self.log.write("***** OOPS! None returned...\n")
|
|
|
|
|
return
|
|
|
|
|
className = win.__class__.__name__
|
|
|
|
|
if className in ["wxButton", "wxButtonPtr"]:
|
|
|
|
|
self.log.write("The types are the same! <grin>\n")
|
|
|
|
|
else:
|
|
|
|
|
self.log.write("Got %s, expected wxButton or wxButtonPtr\n" % className)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def OnFindButton2(self, evt):
|
|
|
|
|
win = self.FindWindowById(BTN2)
|
|
|
|
|
if win is None:
|
|
|
|
|
self.log.write("***** OOPS! None returned...\n")
|
|
|
|
|
return
|
|
|
|
|
if win is self.btn2:
|
|
|
|
|
self.log.write("The objects are the same! <grin>\n")
|
|
|
|
|
else:
|
|
|
|
|
self.log.write("The objects are NOT the same! <frown>\n")
|
|
|
|
|
|
2001-10-12 19:26:38 -04:00
|
|
|
win = evt.GetEventObject()
|
|
|
|
|
if win is None:
|
|
|
|
|
self.log.write("***** OOPS! None returned...\n")
|
|
|
|
|
return
|
|
|
|
|
if win is self.btn2:
|
2001-10-20 23:56:07 -04:00
|
|
|
self.log.write("The objects are the same! <grin>\n")
|
|
|
|
|
else:
|
|
|
|
|
self.log.write("The objects are NOT the same! <frown>\n")
|
|
|
|
|
|
|
|
|
|
sizer = self.GetSizer()
|
|
|
|
|
if sizer is None:
|
|
|
|
|
self.log.write("***** OOPS! None returned...\n")
|
|
|
|
|
return
|
|
|
|
|
if sizer is self.sizer:
|
2001-10-12 19:26:38 -04:00
|
|
|
self.log.write("The objects are the same! <grin>\n")
|
|
|
|
|
else:
|
|
|
|
|
self.log.write("The objects are NOT the same! <frown>\n")
|
|
|
|
|
|
2001-05-17 18:47:09 -04:00
|
|
|
|
|
|
|
|
#----------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
def runTest(frame, nb, log):
|
|
|
|
|
win = TestPanel(nb, log)
|
|
|
|
|
return win
|
|
|
|
|
|
|
|
|
|
#----------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
overview = """\
|
|
|
|
|
<html><body>
|
|
|
|
|
<h2>Original Object Return</h2>
|
|
|
|
|
|
|
|
|
|
<p>Several methods in wxWindows return pointers to base class objects,
|
|
|
|
|
when in fact the actual object pointed to is of a derived type. Since
|
|
|
|
|
SWIG isn't able to tell the actual type it just creates a new Python
|
|
|
|
|
shadow object of the base type to wrap around the base type pointer
|
|
|
|
|
and returns it.
|
|
|
|
|
|
2001-10-12 19:26:38 -04:00
|
|
|
<p>In wxPython prior to 2.3.0 this could cause annoying issues. For
|
|
|
|
|
example if you called:
|
2001-05-17 18:47:09 -04:00
|
|
|
|
|
|
|
|
<pre>
|
|
|
|
|
|
|
|
|
|
myText = someWindow.FindWindowById(txtID)
|
|
|
|
|
</pre>
|
|
|
|
|
|
2001-10-12 19:26:38 -04:00
|
|
|
expecting to get a wxTextCtrl you would actually get a wxWindow object
|
2001-05-17 18:47:09 -04:00
|
|
|
instead. If you then try to call SetValue on that object you'll get
|
|
|
|
|
an exception since there is no such method. This is the reason for
|
|
|
|
|
the wxPyTypeCast hack that has been in wxPython for so long.
|
|
|
|
|
|
2001-10-12 19:26:38 -04:00
|
|
|
<p>Even with wxPyTypeCast there was the issue that the object returned
|
|
|
|
|
was not the same one that was created in Python originally, but a new
|
2001-05-17 18:47:09 -04:00
|
|
|
object of the same type that wraps the same C++ pointer. If the
|
|
|
|
|
programmer has set additional attributes of that original object they
|
|
|
|
|
will not exist in the new object.
|
|
|
|
|
|
|
|
|
|
<p>For a long time now I have wanted to do away with wxPyTypeCast and
|
|
|
|
|
also find a way to return the original Python object from methods like
|
|
|
|
|
FindWindowById. This project naturally divides into two phases:
|
|
|
|
|
|
|
|
|
|
<p><ol>
|
|
|
|
|
|
|
|
|
|
<li>Teach the wrapper methods how to return objects of the right type,
|
|
|
|
|
and be able to then turn wxPyTypeCast in to a no-op.
|
|
|
|
|
|
|
|
|
|
<li>Be able to return the original Python shadow object if it still exists.
|
|
|
|
|
|
|
|
|
|
</ol>
|
|
|
|
|
|
|
|
|
|
<p>The first button below shows the first of these phases (<i>working</i>)
|
2001-10-12 19:26:38 -04:00
|
|
|
and the second will show #2 (<i>working as of 2.3.2</i>)
|
2001-05-17 18:47:09 -04:00
|
|
|
|
|
|
|
|
</body></html>
|
|
|
|
|
"""
|
2003-07-02 19:13:10 -04:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
|
import sys,os
|
|
|
|
|
import run
|
|
|
|
|
run.main(['', os.path.basename(sys.argv[0])])
|
|
|
|
|
|
