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From: wxpython-users@googlegroups.com
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Date: Tue, 22 May 2012 17:11:08 +0000
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Subject: [wxPython-users] Digest for wxpython-users@googlegroups.com - 9
Messages in 5 Topics
Today’s Topic Summary
Group: http://groups.google.com/group/wxpython-users/topics
- textctrl multiline errors on linux [2 Updates]
- Problem with wxConfig & wxPython Demo [1 Update]
- Why does EVT_TREE_ITEM_HYPERLINK trigger on selection [2 Updates]
- wx.BitmapFromBuffer data for PNG format [3 Updates]
- Possible to detect if control is on the screen or not? [1 Update]
textctrl multiline errors on linux
blissend blissend@gmail.com May 22 09:06AM -0700
Hi,
I’m using Fedora 16 with wxPython 2.9.3.1 and I’m having problems setting a
textctrl to be multiline. It works fine on both Windows 7 and Fedora 16 if
I do this…
text = wx.TextCtrl(frame, -1, ‘test’, size=(200,200), style=wx.TE_MULTILINE)
However, if I do it this way it only works on Windows 7 but throws
errors/warnings on Fedora 16…
text = wx.TextCtrl(frame, -1, ‘test’, size=(200,200))
text.SetWindowStyle(wx.TE_MULTILINE)
This is the warning I get on Linux…
(debug.py:2094): GLib-GObject-WARNING **: invalid cast from `GtkEntry’ to
`GtkTextView’
I first noticed this using XRC to define a textctrl to be multiline but it
threw a different message on Linux…
wx._core.PyAssertionError: C++ assertion “IsSingleLine()” failed at
/tools/wxPython-src-2.9.3.1/src/gtk/textctrl.cpp(828) in GetEditable():
shouldn’t be called for multiline
Am I doing something wrong here?
Thanks,
Adam
Mike Driscoll kyosohma@gmail.com May 22 09:15AM -0700
On Tuesday, May 22, 2012 11:06:23 AM UTC-5, blissend wrote:
Am I doing something wrong here?
Thanks,
Adam
I’m guessing there are two different widgets on Linux whereas on Windows,
it’s just one. Thus you probably have to instantiate it one way or the
other, not change it after it’s been created. We’ll see if my hunch is
right when Robin jumps in here…
- Mike
Problem with wxConfig & wxPython Demo
Gadget/Steve GadgetSteve@live.co.uk May 22 10:39AM +0100
Hi All,
I had a problem which occurred with the wxPython demo that highlighted a
problem with wxConfig - when the demo had a problem reading the config
file it displayed a message, giving me the path and a details button -
the only trouble is that the error box only persisted for a few seconds
- presumably until the application terminated - this was not long enough
to read the file path. Once I had managed to find the faulty file I
just needed to rename it to get things running again but I had to try
running the demo 5 or 6 times before I saw enough of the path.
Is there any way of, when an error is displayed, waiting until the error
has been read by the user before terminating the application - e.g.
making the error dialogue modal and giving it a go away button, (OK or
Cancel), in the case of a fatal error like this?
I am sure that I have seen errors like this before with other wx based
applications and they have been known to make an application unusable.
Even worse uninstalling the demo and reinstalling it - my first option -
didn’t remove the configuration file that contained the fault.
wx python version 2.8.12.1 (msw-unicode)
demo version ditto.
Gadget/Steve
Why does EVT_TREE_ITEM_HYPERLINK trigger on selection
Andrea Gavana andrea.gavana@gmail.com May 21 10:05PM +0200
Hi,
On 21 May 2012 11:21, Dag Wastberg wrote:
Just tested it and it seems to work fine. Thanks!
Now that that works, I’m thinking about the possibility to trigger a
hyperlink with space/enter. What do you think?
I gave it a try and implemented it in SVN. Could you test it and see
if it works?
Andrea.
“Imagination Is The Only Weapon In The War Against Reality.”
http://xoomer.alice.it/infinity77/
Andrea Gavana andrea.gavana@gmail.com May 22 09:16AM +0200
On 21 May 2012 22:05, Andrea Gavana wrote:
hyperlink with space/enter. What do you think?
I gave it a try and implemented it in SVN. Could you test it and see
if it works?
Bad attempt. Shame on me for not testing it… I’ll fix it when I get
back home tonight 
Andrea.
“Imagination Is The Only Weapon In The War Against Reality.”
http://xoomer.alice.it/infinity77/
wx.BitmapFromBuffer data for PNG format
King animator333@gmail.com May 21 11:19AM -0700
Chris,
I think the problem is in data order. Even in the code (link posted), at
the bottom, before writing png image, some manipulation is going on but not
able to understand it correctly.
Thanks for pointing out “result[1]” mistake, unfortunately it didn’t helped.
Yes, Cython recently added support for array.array. I’ll look into this
later.
Robin,
I changed to char array instead of python’s list, it works but results are
pretty much same.
Cheers
Prashant
Robin Dunn robin@alldunn.com May 21 11:26AM -0700
On 5/21/12 11:19 AM, King wrote:
Robin,
I changed to char array instead of python’s list, it works but results
are pretty much same.
Ah, I just noticed that you seem to be adding 4 values per pixel, 3 for
RGB (presumably) and 1 with a constant value of 255 for the alpha
(presumably). I only noticed the 1st 3 lines before. If that is your
intent then you should be using wx.BitmapFromBufferRGBA instead of
wx.BitmapFromBuffer, and use widthheight4 instead of the *3 I
mentioned before. Also you should double check that the values you are
fetching from the source buffer are in RGB order.
–
Robin Dunn
Software Craftsman
King animator333@gmail.com May 21 09:50PM -0700
Thanks Robin,
Using wx.BitmapFromBufferRGBA, every thing is working fine.
Cheers
Prashant
On Monday, May 21, 2012 11:56:57 PM UTC+5:30, Robin Dunn wrote:
Possible to detect if control is on the screen or not?
Gadget/Steve GadgetSteve@live.co.uk May 21 07:04PM +0100
On 21/05/2012 1:16 PM, Paul Wiseman wrote:
every time the timer event is fired which I’d rather avoid. Hoping
there will be a an event.
When’s EVT_ACTIVATE supposed to fire? is it based on the app focus?
Yes it is/should be see the demo for splitter window - that logs every
time the focus moves from the window(s) of the application to something
else.
Gadget/Steve
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