tag:old.nabble.com,2006:forum-14278Nabble - wxWidgets2009-12-17T13:14:27ZwxWidgets gives you a single, easy-to-use API for writing GUI applications on multiple platforms. Link with the appropriate library for your platform (Windows/Unix/Mac, others coming shortly) and compiler (almost any popular C++ compiler), and your application will adopt the look and feel appropriate to that platform. wxWidgets home is <a href="http://www.wxwidgets.org/" target="_top" rel="nofollow">here</a>.tag:old.nabble.com,2006:post-26835075Re: Setting focus to the grid in notebook2009-12-17T13:14:27Z2009-12-17T13:14:27ZikorotVadim,
<br><br><br>-----Original Message-----
<div class='shrinkable-quote'><br>>From: Vadim Zeitlin <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26835075&i=0" target="_top" rel="nofollow">vadim@...</a>>
<br>>Sent: Dec 17, 2009 2:47 AM
<br>>To: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26835075&i=1" target="_top" rel="nofollow">wx-users@...</a>
<br>>Subject: Re: Setting focus to the grid in notebook
<br>>
<br>>On Wed, 16 Dec 2009 22:19:12 -0800 (GMT-08:00) <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26835075&i=2" target="_top" rel="nofollow">ikorot@...</a> wrote:
<br>>
<br>>> I have a notebook and one of the pages consist of one grid.
<br>>> What I want to do is when the user changes the page to the one
<br>>> with the grid give focus to the grid.
<br>>
<br>> Normally this should already work. If it doesn't, try also putting this
<br>>grid inside a wxPanel.
</div><br>The grid _is_ inside the panel.
<br>Maybe all I need is to use grid without the panel?
<br><br>But then it does not make sense. In my case there is only grid in the notebook
<br>page, but somebody else might have other contros as well.
<br><br>Thank you.
<br><br>>
<br>> Regards,
<br>>VZ
<br>>
<br>>--
<br>>TT-Solutions: wxWidgets consultancy and technical support
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26827523Re: wxHTML & wrapping too long words2009-12-17T04:46:37Z2009-12-17T04:46:37ZMarcus FrenkelOn Mon, Dec 14, 2009 at 11:40 AM, Milan Babuskov <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26827523&i=0" target="_top" rel="nofollow">milanb@...</a>> wrote:
<br>> Marcus Frenkel wrote:
<br>>> I use wxHTML for my simple html needs. wxHTML wraps too long lines in
<br>>> a table cell just fine. However, it breaks the line by the word
<br>>> boundaries only, it never brakes the word no matter how long it is.
<br>>
<br>> It's this exactly how HTML is supposed to work? Does the Firefox break
<br>> words?
<br><br>Firefox does it when zero-width space characters are used in the html code.
<br><br>--
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26826320Re[4]: wxActiveX.cpp2009-12-17T02:56:37Z2009-12-17T02:56:37ZVadim Zeitlin-4On Thu, 17 Dec 2009 17:40:39 +0800 John Roberts <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26826320&i=0" target="_top" rel="nofollow">johnr@...</a>> wrote:
<br><br>JR> There are no user accessible controls on the activex control I am
<br>JR> interfacing with and it just displays a bitmap and some text that may change
<br>JR> when the control is accessed programmatically. The displayed text is changed
<br>JR> from the server end. What this means is that even though it works I will
<br>JR> still get a CHECK_HR(hret) log message after line
<br>JR> 1034 HRESULT hret = cpContainer->FindConnectionPoint(ta->guid, cp.GetRef());
<br>JR> hret can be S_OK, CONNECT_E_NOCONNECTION or E_POINTER
<br>JR> It would be good not to get the log message as the control works. If
<br>JR> CHECK_HR(hret) is removed then E_POINTER probably still needs to be checked
<br>JR> for.
<br>JR> Any thoughts?
<br><br> Yes, I guess failing to find any connection points shouldn't be fatal --
<br>all it means is that no events will be generated but it's not always a
<br>problem. If you can make a patch checking for CONNECT_E_NOCONNECTION (this
<br>is better than checking for E_POINTER: we should ignore only the errors we
<br>know about and not everything by default) and handling it specially, I'd be
<br>glad to apply it.
<br><br> Thanks,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26826320/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26826284Re: automtn.cpp code2009-12-17T02:53:46Z2009-12-17T02:53:46ZVadim Zeitlin-4On Thu, 17 Dec 2009 01:54:51 -0800 (PST) John Roberts <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26826284&i=0" target="_top" rel="nofollow">johnr@...</a>> wrote:
<br><br>JR> In wxAutomationObject::Invoke(...) excep is passed to
<br>JR> 195 hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL,
<br>JR> LOCALE_SYSTEM_DEFAULT, (WORD)action, &dispparams,
<br>JR> vReturnPtr, &excep, &uiArgErr);
<br>JR>
<br>JR> 189 excep.pfnDeferredFillIn is set to NULL which means that excep will
<br>JR> not be changed or filled in the call.
<br><br> Are you sure about this? I didn't test it but MSDN documentation seems to
<br>say something different, namely that if it is NULL the bstr fields should
<br>be filled immediately rather than deferred until later. This also seems to
<br>make more sense considering the name of the field..
<br><br>JR> excep.bstrSource etc are
<br>JR> uninitialized. If hr fails and returns a bad parameter etc error then
<br>JR> excep members are freed as per below resulting in a segfault.
<br>JR>
<br>JR> if (FAILED(hr))
<br>JR> {
<br>JR> 218 SysFreeString(excep.bstrSource);
<br>JR> SysFreeString(excep.bstrDescription);
<br>JR> SysFreeString(excep.bstrHelpFile);
<br>JR> }
<br>JR>
<br>JR> we need
<br>JR> 189 excep.pfnDeferredFillIn = NULL;
<br>JR> // initialize the following because they will be freed later if Invoke
<br>JR> (...) fails
<br>JR> excep.bstrSource = NULL;
<br>JR> excep.bstrDescription = NULL;
<br>JR> excep.bstrHelpFile = NULL;
<br>JR>
<br>JR> Should I submit a patch for this sort of thing.
<br><br> I fixed this blindly in r62908 but patches are still preferred as, for
<br>one, they ensure the message doesn't get lost/forgotten and they also
<br>ensure that we apply exactly the change which was tested by you.
<br><br> Thanks,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26826284/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26826216Re: Setting focus to the grid in notebook2009-12-17T02:47:11Z2009-12-17T02:47:11ZVadim Zeitlin-4On Wed, 16 Dec 2009 22:19:12 -0800 (GMT-08:00) <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26826216&i=0" target="_top" rel="nofollow">ikorot@...</a> wrote:
<br><br>> I have a notebook and one of the pages consist of one grid.
<br>> What I want to do is when the user changes the page to the one
<br>> with the grid give focus to the grid.
<br><br> Normally this should already work. If it doesn't, try also putting this
<br>grid inside a wxPanel.
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26826216/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26825636automtn.cpp code2009-12-17T01:54:51Z2009-12-17T01:54:51ZJohn Roberts-9In wxAutomationObject::Invoke(...) excep is passed to
<br>195 hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL,
<br>LOCALE_SYSTEM_DEFAULT, (WORD)action, &dispparams,
<br>vReturnPtr, &excep, &uiArgErr);
<br><br>189 excep.pfnDeferredFillIn is set to NULL which means that excep will
<br>not be changed or filled in the call. excep.bstrSource etc are
<br>uninitialized. If hr fails and returns a bad parameter etc error then
<br>excep members are freed as per below resulting in a segfault.
<br><br>if (FAILED(hr))
<br>{
<br>218 SysFreeString(excep.bstrSource);
<br> SysFreeString(excep.bstrDescription);
<br> SysFreeString(excep.bstrHelpFile);
<br>}
<br><br>we need
<br>189 excep.pfnDeferredFillIn = NULL;
<br> // initialize the following because they will be freed later if Invoke
<br>(...) fails
<br> excep.bstrSource = NULL;
<br> excep.bstrDescription = NULL;
<br> excep.bstrHelpFile = NULL;
<br><br>Should I submit a patch for this sort of thing.
<br>Thanks, John
<br><br>--
<br>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
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<br>> From: "Vadim Zeitlin" <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26825477&i=0" target="_top" rel="nofollow">vadim@...</a>>
<br>> To: <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26825477&i=1" target="_top" rel="nofollow">wx-users@...</a>>
<br>> Sent: Saturday, December 05, 2009 10:25 PM
<br>> Subject: Re[2]: wxActiveX.cpp
<br>>
<br>> VZ "However I couldn't prevent myself from noticing the weird
<br>>
<br>> IDispatch* disp;
<br>> m_frameSite->QueryInterface(IID_IDispatch, (void**)&disp);
<br>>
<br>> lines in this code. I don't understand what is their purpose ("disp" is
<br>> never used below) and I'm pretty sure we've got a memory leak here because
<br>> Release() is not called even if disp != NULL. Could we just remove these
<br>> lines? As you're using this class already, could you please test if your
<br>> code still works if you do this?"
<br>>
<br>> JR I had puzzled that "disp" was not used after that. My code fails before
<br>> that
<br>> at FindConnectionPoint in ConnectionPointContainer despite passing just
<br>> about every ID I found for the control and dispinterface in ms OLE viewer.
<br>> Could be the .net's control's problem. Unfortunately the developers have
<br>> not
<br>> yet been very responsive as it works when imported into VBasic and C# .net
<br>> though not for C++ even with MS VS9/10.
<br>> I will take a look at it over the next week or two as I get time. I have
<br>> preferred to avoid ActiveX stuff so I am learning as I go.
<br>> Cheers, John
</div><br>The ActiveX control that I am working with returns CONNECT_E_NOCONNECTION
<br>from HRESULT hret = cpContainer->FindConnectionPoint(ta->guid,
<br>cp.GetRef()); so will not go into the line approx 1040 "if(cp)". So there is
<br>not connection point and I cannot test whether removing those lines is a
<br>problem. It is a query directed at the ActiveX container's m_frameSite and
<br>will presumably err if m_frameSite does not return a IDispatch pointer for
<br>its own interface to the ActiveX control site. Odd that the returned pointer
<br>disp is not stored anywhere. Perhaps it is not released because m_frameSite
<br>is still in use but that doesn't make much sense either.
<br><br>There are no user accessible controls on the activex control I am
<br>interfacing with and it just displays a bitmap and some text that may change
<br>when the control is accessed programmatically. The displayed text is changed
<br>from the server end. What this means is that even though it works I will
<br>still get a CHECK_HR(hret) log message after line
<br>1034 HRESULT hret = cpContainer->FindConnectionPoint(ta->guid, cp.GetRef());
<br>hret can be S_OK, CONNECT_E_NOCONNECTION or E_POINTER
<br>It would be good not to get the log message as the control works. If
<br>CHECK_HR(hret) is removed then E_POINTER probably still needs to be checked
<br>for.
<br>Any thoughts?
<br>Cheers, John
<br><br>--
<br>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
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<br>> Hi,
<br>>
<br>> Are there any plans of supporting/showing animated gifs in wxRichTextCtrl?
<br>>
<br>No, but feel free to have a go at this - it shouldn't too difficult.
<br>Most of the animation code is in a wxAnimation class, so then it'll be a
<br>case of reproducing the code in wxAnimationCtrl (see
<br>src/generic/animateg.cpp and src/common/animatecmn.cpp) that zaps the
<br>frames to the window at intervals. The wxRTC would need to look through
<br>its images to check which are animations and draw the frames as
<br>appropriate. The loaded animation would have to be stored in the
<br>relevant wxRTC object so this means it would probably need to be done in
<br>2.9 since binary compatibility with 2.8 could not be preserved.
<br><br>Regards,
<br><br>Julian
<br><br>--
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<br>I have a notebook and one of the pages consist of one grid.
<br>What I want to do is when the user changes the page to the one
<br>with the grid give focus to the grid.
<br><br>So I override the page changed event but I have 2 problems.
<br><br>1. If I just leave the processing to me, the grid won't be painted
<br>on the screen.
<br>2. If I call event.Skip() at the end of processing, the page will
<br>have the focus.
<br><br>Any idea on how to solve this?\
<br><br>Thank you.
<br><br>--
<br>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
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<br>> Do you use 2.9.0 or trunk? There was a bug fixed in WM-related code which
<br>> happened when using fluxbox so if you're using 2.9.0 upgrading to trunk
<br>> should probably fix it.
<br><br>I was using 2.9.0. Indeed, I just tested with trunk, and it works fine.
<br><br>Thanks!
<br><br>- Chris
<br><br><br>--
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<br><br>CF> When I run under a fluxbox login, only 2.8 works.
<br><br> Do you use 2.9.0 or trunk? There was a bug fixed in WM-related code which
<br>happened when using fluxbox so if you're using 2.9.0 upgrading to trunk
<br>should probably fix it.
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26819070/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26818973Re: X over ssh, and wxWidgets 2.92009-12-16T13:40:28Z2009-12-16T13:40:28ZChris Frey-3Vadim Zeitlin <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26818973&i=0" target="_top" rel="nofollow">vadim@...</a>> wrote:
<br>> CF> such as when using the command 'ssh -Y user@host'.
<br>>
<br>> This definitely works with 2.9, I'm doing it daily. What exactly is the
<br>> problem you encounter?
<br><br>Hi Vadim,
<br><br>When I run a 2.9 app, the program seems to run, and then hangs, without
<br>the window ever appearing. I have to Ctrl-C to get out of it.
<br><br>I ran another test, and when I'm running under a Gnome login, then it
<br>works with both 2.8 and 2.9.
<br><br>When I run under a fluxbox login, only 2.8 works.
<br><br>This is all with a local machine, tested like this:
<br><br> Login to Gnome:
<br> ssh -Y -a -2 other@localhost
<br> ./run2.8 # works
<br> ./run2.9 # works
<br><br> Login to fluxbox:
<br> ssh -Y -a -2 other@localhost
<br> ./run2.8 # works
<br> ./run2.9 # hang waiting for a window
<br><br>Is there something I can do to create some debug output that would help?
<br>I'm not that familiar with debugging X protocol / window manager stuff.
<br><br>Thanks,
<br>- Chris
<br><br><br>--
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<br>ImportError: DLL load failed: %1 is not a valid Win32 application
<br>in _core.py", line 4, in <module>
<br>while launching python demo.py
<br><br>NOTE: I just installed wxPython
<br><br>ENVIRONMENT:
<br>Windows Vista family premium 64-bit, SP2
<br>Python 2.6.1 (r261:67517, Dec 4 2008, 16:51:00) [MSC v.1500 32 bit
<br>(Intel)] on win32
<br>I installed
<br>wxPython2.8-win64-unicode-2.8.10.1-py26.exe
<br>in C:\Python26\Lib\site-packages\wx-2.8-msw-unicode\wxPython
<br>and
<br>wxPython2.8-win32-docs-demos-2.8.10.1.exe
<br>in C:\Program Files (x86)\wxPython2.8 Docs and Demos\
<br><br>I set PYTHONPATH=C:\Python26\Lib\site-packages\wx-2.8-msw-unicode
<br>\wxPython
<br><br><br>FULL ERROR MESSAGE:
<br>C:\Program Files (x86)\wxPython2.8 Docs and Demos\demo>python demo.py
<br>Traceback (most recent call last):
<br> File "demo.py", line 3, in <module>
<br> import Main
<br> File "C:\Program Files (x86)\wxPython2.8 Docs and Demos\demo
<br>\Main.py", line 56
<br>, in <module>
<br> import wx
<br> File "C:\Python26\lib\site-packages\wx-2.8-msw-unicode\wx
<br>\__init__.py", line 4
<br>5, in <module>
<br> from wx._core import *
<br> File "C:\Python26\lib\site-packages\wx-2.8-msw-unicode\wx\_core.py",
<br>line 4, i
<br>n <module>
<br> import _core_
<br>ImportError: DLL load failed: %1 n'est pas une application Win32
<br>valide.
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<br><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26809782&i=0" target="_top" rel="nofollow">bigpilot@...</a>> wrote:
<br><br>> I have used Visual Leak Detector, a free open-source leak detector,
<br>> for years with wxWidgets and Visual C++ and it helped me squash a lot
<br>> of hard-to-find memory leaks. Try it.
<br><br>Agreed, that's a good one.
<br><br>For harder to find ones, look at the gflags utility that's part of
<br>Microsoft's free-to-download debugging tools package. It can change the
<br>kernel allocation flags so that you get extra guard pages and fast free
<br>operations, so that any touching of a page after it's freed is immediately
<br>caught by the hardware.
<br><br><<a href="http://www.microsoft.com/whdc/DevTools/Debugging/default.mspx" target="_top" rel="nofollow">http://www.microsoft.com/whdc/DevTools/Debugging/default.mspx</a>>
<br><br>--
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26808486Re[2]: Setting up wxWindows using XRC files?2009-12-16T01:32:47Z2009-12-16T01:32:47ZVadim Zeitlin-4On Tue, 15 Dec 2009 13:25:56 -0800 (PST) bobpitbull <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26808486&i=0" target="_top" rel="nofollow">bobpitbull@...</a>> wrote:
<br><br>b> I'm pretty new to wxWidgets, really, so forgive me for this "stupid"
<br>b> question, but... basically... all that I need to tell it to do is to
<br>b> let me split the parent window up into 2 parts - about 40% for left,
<br>b> 60% for right (option = 2 and option = 3?)... then... simply use the
<br>b> full height of the window, if needed, for both - and have vertical and
<br>b> horizontal scrollbars in case things don't fit.
<br>b>
<br>b> Is this possible through .xrc files?
<br><br> Yes, of course. Just create a horizontal wxBoxSizer with 2 items with the
<br>proportions 2 and 3, just as you wrote, and wxEXPAND flag. You're probably
<br>just making some mistake in your XML, it's easy to do unfortunately (XML
<br>may have its advantages but being easily human-editable is not one of them).
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26808486/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26808432Re: X over ssh, and wxWidgets 2.92009-12-16T01:28:00Z2009-12-16T01:28:00ZVadim Zeitlin-4On Wed, 16 Dec 2009 02:34:49 +0000 (UTC) Chris Frey <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26808432&i=0" target="_top" rel="nofollow">cdfrey@...</a>> wrote:
<br><br>CF> In testing my application between 2.8 and 2.9, I noticed that under
<br>CF> wxWidgets 2.9, I am unable to run my program over a forwarded X session
<br>CF> such as when using the command 'ssh -Y user@host'.
<br><br> This definitely works with 2.9, I'm doing it daily. What exactly is the
<br>problem you encounter?
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26808432/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26808060wxRichTextCtrl supporting animation2009-12-16T00:52:07Z2009-12-16T00:52:07ZMarcus FrenkelHi,
<br><br>Are there any plans of supporting/showing animated gifs in wxRichTextCtrl?
<br><br>Thx, Marcus
<br><br>--
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<br>
<br>I'm hoping someone has run into this issue before.
<br>
<br>In testing my application between 2.8 and 2.9, I noticed that under
<br>wxWidgets 2.9, I am unable to run my program over a forwarded X session
<br>such as when using the command 'ssh -Y user@host'.
<br>
<br>Using version 2.8, this works fine.
<br><br>Is there anything I can do to help debug this?
<br><br>Thanks,
<br>- Chris
<br><br><br>--
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<br>> I've tried using DialogBlocks to help me with this - but with no
<br>> luck :-( .. anyone got any advice?
<br>>
<br><br>When DialogBlocks tries to import the sample you posted,
<br>it gives an XML parsing error on the opening tag for the wxTreeCtrl
<br>object: the closing bracket of the name attribute is ” instead of "
<br>(unicode right double quotation mark instead of plain quotation
<br>mark). That makes the xml not well-formed.
<br><br>I think you will get the result you are expecting if you fix that error
<br>and then:
<br>- remove all <size> tags (for the wxTreeCtrl and the wxScrolledWindow)
<br>- use option 2 for the first sizeritem and option 3 for the second, just
<br> like you already suggested yourself
<br><br>HTH,
<br>Anton
<br><br>--
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<br>luck :-( .. anyone got any advice?
<br><br>On Dec 15, 9:25 pm, bobpitbull <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26803658&i=0" target="_top" rel="nofollow">bobpitb...@...</a>> wrote:
<div class='shrinkable-quote'><br>> Thanks for the answer, Vadim.
<br>>
<br>> I usually prefer to code without external tools where I can... but it
<br>> may be useful to use something in this case so that I can see how
<br>> generated .xrc differs from what I have...
<br>>
<br>> I'm pretty new to wxWidgets, really, so forgive me for this "stupid"
<br>> question, but... basically... all that I need to tell it to do is to
<br>> let me split the parent window up into 2 parts - about 40% for left,
<br>> 60% for right (option = 2 and option = 3?)... then... simply use the
<br>> full height of the window, if needed, for both - and have vertical and
<br>> horizontal scrollbars in case things don't fit.
<br>>
<br>> Is this possible through .xrc files? Both my wxTreeCtrl and my panel/
<br>> scrollablewindow/whatever on the right are "dynamic" - they can change
<br>> in total height dependent on what you choose to expand/collapse when
<br>> clicking on them...
<br>>
<br>> Thanks for the help,
<br>> Bob
<br>>
<br>> On Dec 15, 9:07 pm, Vadim Zeitlin <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26803658&i=1" target="_top" rel="nofollow">va...@...</a>> wrote:
<br>>
<br>>
<br>>
<br>> > On Tue, 15 Dec 2009 09:02:16 -0800 (PST) bobpitbull <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26803658&i=2" target="_top" rel="nofollow">bobpitb...@...</a>> wrote:
<br>>
<br>> > b> I’m trying to set up a very simple window – due to implementation, I
<br>> > b> need to do it through a .xrc file...
<br>>
<br>> > But you don't need to create XRC file by hand, most people prefer to use a
<br>> > dialog editor for it. Of course, there is absolutely nothing wrong with
<br>> > writing it manually neither, this is what I personally do. But if you don't
<br>> > know the meaning of "option" tag, it's probably better to start
<br>> > experimenting with the GUI tools.
<br>>
<br>> > b> PS. I can’t find any documentation for <option> but it seems to be
<br>> > b> littered all over our codebase... can someone explain what it’s for?
<br>>
<br>> > The documentation for option itself is at
<br>>
<br>> ><a href="http://docs.wxwidgets.org/trunk/overview_xrcformat.html#overview_xrcf" target="_top" rel="nofollow">http://docs.wxwidgets.org/trunk/overview_xrcformat.html#overview_xrcf</a>...
<br>>
<br>> > but the meaning of it is found in wxSizer documentation (overview and
<br>> > wxBoxSizer description).
<br>>
<br>> > Regards,
<br>> > VZ
<br>>
<br>> > --
<br>> > TT-Solutions: wxWidgets consultancy and technical support
<br>> > <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br>>
<br>> > application_pgp-signature_part
<br>> > < 1KViewDownload
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<br><br>I usually prefer to code without external tools where I can... but it
<br>may be useful to use something in this case so that I can see how
<br>generated .xrc differs from what I have...
<br><br>I'm pretty new to wxWidgets, really, so forgive me for this "stupid"
<br>question, but... basically... all that I need to tell it to do is to
<br>let me split the parent window up into 2 parts - about 40% for left,
<br>60% for right (option = 2 and option = 3?)... then... simply use the
<br>full height of the window, if needed, for both - and have vertical and
<br>horizontal scrollbars in case things don't fit.
<br><br>Is this possible through .xrc files? Both my wxTreeCtrl and my panel/
<br>scrollablewindow/whatever on the right are "dynamic" - they can change
<br>in total height dependent on what you choose to expand/collapse when
<br>clicking on them...
<br><br>Thanks for the help,
<br>Bob
<br><br>On Dec 15, 9:07 pm, Vadim Zeitlin <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26802047&i=0" target="_top" rel="nofollow">va...@...</a>> wrote:
<div class='shrinkable-quote'><br>> On Tue, 15 Dec 2009 09:02:16 -0800 (PST) bobpitbull <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26802047&i=1" target="_top" rel="nofollow">bobpitb...@...</a>> wrote:
<br>>
<br>> b> I’m trying to set up a very simple window – due to implementation, I
<br>> b> need to do it through a .xrc file...
<br>>
<br>> But you don't need to create XRC file by hand, most people prefer to use a
<br>> dialog editor for it. Of course, there is absolutely nothing wrong with
<br>> writing it manually neither, this is what I personally do. But if you don't
<br>> know the meaning of "option" tag, it's probably better to start
<br>> experimenting with the GUI tools.
<br>>
<br>> b> PS. I can’t find any documentation for <option> but it seems to be
<br>> b> littered all over our codebase... can someone explain what it’s for?
<br>>
<br>> The documentation for option itself is at
<br>>
<br>> <a href="http://docs.wxwidgets.org/trunk/overview_xrcformat.html#overview_xrcf" target="_top" rel="nofollow">http://docs.wxwidgets.org/trunk/overview_xrcformat.html#overview_xrcf</a>...
<br>>
<br>> but the meaning of it is found in wxSizer documentation (overview and
<br>> wxBoxSizer description).
<br>>
<br>> Regards,
<br>> VZ
<br>>
<br>> --
<br>> TT-Solutions: wxWidgets consultancy and technical support
<br>> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br>>
<br>> application_pgp-signature_part
<br>> < 1KViewDownload
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<br><br>JU> On Sat, Dec 12, 2009 at 12:21, Vadim Zeitlin <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26801862&i=1" target="_top" rel="nofollow">vadim@...</a>> wrote:
<br>JU> > On Sat, 12 Dec 2009 12:47:53 +0200 Jaakko Salli <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26801862&i=2" target="_top" rel="nofollow">jaakko.salli@...</a>> wrote:
<br>JU> >
<br>JU> > JS> Vadim Zeitlin wrote:
<br>JU> > JS> > On Fri, 11 Dec 2009 18:25:47 -0300 Alejandro Mostovoi <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26801862&i=3" target="_top" rel="nofollow">ahmostovoi@...</a>> wrote:
<br>JU> > JS> >
<br>JU> > JS> > AM> Why wxChoicebook::SetImagePage isn't implemented?
<br>JU> > JS> >
<br>JU> > JS> > It's impossible to implement it using a normal wxChoice. I guess we could
<br>JU> > JS> > use wxComboCtrl which does support images
<br>JU> > JS>
<br>JU> > JS> Maybe it would be even better to use wxBitmapComboBox?
<br>JU> >
<br>JU> > Yes, sorry, this is what I meant, I just wasn't sure about the exact class
<br>JU> > name.
<br>JU> >
<br>JU> > I'm still not sure if it's worth the trouble though, the icons in the book
<br>JU> > controls are usually used to allow the user to quickly spot the page he
<br>JU> > wants. As all the pages are hidden anyhow in the combobox drop down list,
<br>JU> > it's questionable whether using icons adds anything in this case.
<br>JU>
<br>JU> Having an assert here is misleading, at least it is not consistent
<br>JU> with itself... under this logic SetImageList should also assert.
<br><br> I definitely agree with this, if we don't remove this assert we should add
<br>another one there.
<br><br>JU> I would prefer the wxBitmapComboBox versión, I understand the work vs
<br>JU> benefits and may not be worth it,
<br><br> Probably not, especially as we'd also need to move wxChoicebook itself to
<br>adv library if we did this because wxBitmapComboBox is not in core.
<br><br>JU> but removing the assert should be simple enough.
<br><br> Yes, I've just done it in the trunk (r62895).
<br><br> Regards,
<br>VZ
<br><br>--
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<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26801862/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26801804Re: Setting up wxWindows using XRC files?2009-12-15T13:07:36Z2009-12-15T13:07:36ZVadim Zeitlin-4On Tue, 15 Dec 2009 09:02:16 -0800 (PST) bobpitbull <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26801804&i=0" target="_top" rel="nofollow">bobpitbull@...</a>> wrote:
<br><br>b> I’m trying to set up a very simple window – due to implementation, I
<br>b> need to do it through a .xrc file...
<br><br> But you don't need to create XRC file by hand, most people prefer to use a
<br>dialog editor for it. Of course, there is absolutely nothing wrong with
<br>writing it manually neither, this is what I personally do. But if you don't
<br>know the meaning of "option" tag, it's probably better to start
<br>experimenting with the GUI tools.
<br><br>b> PS. I can’t find any documentation for <option> but it seems to be
<br>b> littered all over our codebase... can someone explain what it’s for?
<br><br> The documentation for option itself is at
<br><br><a href="http://docs.wxwidgets.org/trunk/overview_xrcformat.html#overview_xrcformat_sizers" target="_top" rel="nofollow">http://docs.wxwidgets.org/trunk/overview_xrcformat.html#overview_xrcformat_sizers</a><br><br>but the meaning of it is found in wxSizer documentation (overview and
<br>wxBoxSizer description).
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26801804/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26798140Setting up wxWindows using XRC files?2009-12-15T09:02:16Z2009-12-15T09:02:16ZbobpitbullHey All,
<br><br>I’m trying to set up a very simple window – due to implementation, I
<br>need to do it through a .xrc file...
<br><br>What I want is to have a wxTreeCtrl on the left side of the window
<br>(non-editable) and a scrollable (editable part) on the right side...
<br><br>Right now here’s what I have:-
<br><br> <object class="wxPanel" name="ID_PANEL_MYBROWSER">
<br> <title>My Browser</title>
<br> <object class="wxBoxSizer">
<br> <orient>wxHORIZONTAL</orient>
<br> <object class="sizeritem">
<br> <flag>wxGROW|wxALL</flag>
<br> <option>1</option>
<br> <object class="wxTreeCtrl" name="IDTC_MyTreeControl”>
<br> <size>300,1000</size>
<br> <style>wxTR_HAS_BUTTONS|wxTR_ROW_LINES|wxTR_MULTIPLE</
<br>style>
<br> </object>
<br> </object>
<br> <object class="sizeritem">
<br> <flag>wxGROW|wxALL</flag>
<br> <option>1</option>
<br> <object class="wxScrolledWindow" name="IDSW_PROPERTIES">
<br> <size>450,1000</size>
<br> <style>wxHSCROLL|wxVSCROLL</style>
<br> </object>
<br> </object>
<br> </object>
<br> </object>
<br><br>The RHS of the window is completely wrong ... it’s offsetting the
<br>ScrolledWindow portion such that, when the window first appears, it’s
<br>nearly off screen...? So there’s just a large, blank area to the right
<br>of my tree control...
<br><br>Can anyone advise on the correct way to setup the sizing? And anything
<br>else wrong with the above..?
<br><br>Robert
<br><br>PS. I can’t find any documentation for <option> but it seems to be
<br>littered all over our codebase... can someone explain what it’s for?
<br><br>--
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26795594Re: Re[2]: wxChoicebook question2009-12-15T06:22:42Z2009-12-15T06:22:42ZpersonajeOn Sat, Dec 12, 2009 at 12:21, Vadim Zeitlin <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26795594&i=0" target="_top" rel="nofollow">vadim@...</a>> wrote:
<div class='shrinkable-quote'><br>> On Sat, 12 Dec 2009 12:47:53 +0200 Jaakko Salli <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26795594&i=1" target="_top" rel="nofollow">jaakko.salli@...</a>> wrote:
<br>>
<br>> JS> Vadim Zeitlin wrote:
<br>> JS> > On Fri, 11 Dec 2009 18:25:47 -0300 Alejandro Mostovoi <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26795594&i=2" target="_top" rel="nofollow">ahmostovoi@...</a>> wrote:
<br>> JS> >
<br>> JS> > AM> Why wxChoicebook::SetImagePage isn't implemented?
<br>> JS> >
<br>> JS> > It's impossible to implement it using a normal wxChoice. I guess we could
<br>> JS> > use wxComboCtrl which does support images
<br>> JS>
<br>> JS> Maybe it would be even better to use wxBitmapComboBox?
<br>>
<br>> Yes, sorry, this is what I meant, I just wasn't sure about the exact class
<br>> name.
<br>>
<br>> I'm still not sure if it's worth the trouble though, the icons in the book
<br>> controls are usually used to allow the user to quickly spot the page he
<br>> wants. As all the pages are hidden anyhow in the combobox drop down list,
<br>> it's questionable whether using icons adds anything in this case.
</div><br>Having an assert here is misleading, at least it is not consistent
<br>with itself... under this logic SetImageList should also assert.
<br><br>I would prefer the wxBitmapComboBox versión, I understand the work vs
<br>benefits and may not be worth it, but removing the assert should be
<br>simple enough.
<br><br>Regards.
<br><br>--
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<p></p>
-- <br />
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To unsubscribe, send email to <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26795466&i=0" target="_top" rel="nofollow">wx-users+unsubscribe@...</a><br />
or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26795217Re: Detecting Memory Leaks VS20082009-12-15T05:57:28Z2009-12-15T05:57:28ZBigPilot<br>On Dec 14, 7:32 pm, Mark Erbaugh <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26795217&i=0" target="_top" rel="nofollow">m...@...</a>> wrote:
<br>> I'm using MS VS2008 Express edition on Windows XP. I originally compiled wxWidgets 2.8.10 with the recommended 0 for wxUSE_DEBUG_CONTEXT, wxUSE_MEMORY_TRACING, wxGLOBAL_MEMORY_OPERATORS and wsUSE_DEBUG_NEW_ALWAYS. When I had memory allocation problems in my program, VS would report memory leaks although, the memory dump it gave wasn't very helpful in determining where the problem was.
<br>>
<br>> I read the section on Detecting Memory Leaks and Other Errors in "Cross Platform GUI Programming with wxWidgets" (page 416 in my copy). >It mentioned setting the above constants to 1. I rebuilt the debug version of wxWidgets with those settings and ran a program with >deliberate memory leaks (I removed the code that deleted some objects that were created with new) in VS. It reported the memory leaks, >but didn't give the details of the type of object and program location as shown in the book.
<br><br>I have used Visual Leak Detector, a free open-source leak detector,
<br>for years with wxWidgets and Visual C++ and it helped me squash a lot
<br>of hard-to-find memory leaks. Try it.
<br><br><a href="http://www.codeproject.com/KB/applications/visualleakdetector.aspx" target="_top" rel="nofollow">http://www.codeproject.com/KB/applications/visualleakdetector.aspx</a><br><br><br>--
<br>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26792416Re[2]: about wxdfb2009-12-15T02:07:43Z2009-12-15T02:07:43ZVadim Zeitlin-4On Tue, 15 Dec 2009 10:00:23 +0100 haithem rahmani <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26792416&i=0" target="_top" rel="nofollow">haithem.rahmani@...</a>> wrote:
<br><br>hr> > However now that wxWindow (and wxTLW) are implemented, I don't really
<br>hr> > think we want to change the code to use it any more. Or am I missing
<br>hr> > something that it does and wxDFB doesn't support?
<br>hr> >
<br>hr> I think yes since LiTe is "Lite is a ToolKit Engine" it is implenting
<br>hr> quite all widgets needed by wxWidget,
<br><br> Ah, I didn't realize this. I couldn't (and still can't) access
<br>www.directfb.org so I just saw a brief description of LITE in Google cache.
<br><br>hr> I think LiTE can provide all missing features, but I Don't know how
<br>hr> difficut it would be to use it inside wxdfb.
<br><br> It would basically mean creating another port on top of the existing
<br>wxDFB. E.g. you have wxX11 (using wxUniversal) and wxGTK which also uses
<br>X11 but uses GTK+ for the widgets. In the same way you could have wxDFB
<br>with wxUniversal and wxLITE reusing some of wxDFB code but using "native"
<br>widgets. This will definitely require quite some work.
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26792416/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26791660Re: about wxdfb2009-12-15T01:00:23Z2009-12-15T01:00:23Zrmh<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br>
However now that wxWindow (and wxTLW) are implemented, I don't really<br>
think we want to change the code to use it any more. Or am I missing<br>
something that it does and wxDFB doesn't support?<br>
<br></blockquote><div> I think yes since LiTe is "Lite is a ToolKit Engine" it is implenting</div><div>quite all widgets needed by wxWidget, if you look in the file box.h you'll find :</div><div><br></div><div>
<div>typedef enum {</div><div> LITE_TYPE_WINDOW = 0x1000,</div><div> LITE_TYPE_WINDOW_USER = 0x2000, </div><div> LITE_TYPE_BOX = 0x8000,</div><div>
LITE_TYPE_BUTTON = 0x8001, </div><div> LITE_TYPE_ANIMATION = 0x8002, </div><div> LITE_TYPE_IMAGE = 0x8003, </div><div> LITE_TYPE_LABEL = 0x8004, </div>
<div> LITE_TYPE_SLIDER = 0x8005,</div><div> LITE_TYPE_TEXTLINE = 0x8006,</div><div> LITE_TYPE_PROGRESSBAR = 0x8007, </div><div> LITE_TYPE_TEXT_BUTTON = 0x8008, </div>
<div> LITE_TYPE_CHECK = 0x8009, </div><div> LITE_TYPE_SCROLLBAR = 0x800A,</div><div> LITE_TYPE_LIST = 0x800B,</div><div> LITE_TYPE_BOX_USER = 0x9000,</div>
<div> LITE_TYPE_HANTEXTLINE = 0xF000, </div><div>} LiteBoxType;</div></div><div><br></div><div>LiTE also provides event handling API. </div></div><div><br></div><div>I think LiTE can provide all missing features, but I Don't know how </div>
<div>difficut it would be to use it inside wxdfb.</div><div><br></div><div>regards </div><div>Haithem</div>-- <br> Say: He is God, the One and Only;<br> God, the Eternal, Absolute;<br> He begetteth not, nor is He begotten;<br>
And there is none like unto Him.<br>
</div>
<p></p>
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To unsubscribe, send email to <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26791660&i=0" target="_top" rel="nofollow">wx-users+unsubscribe@...</a><br />
or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26791084Re: Changing a dot into a comma in an OnChar event2009-12-15T00:03:54Z2009-12-15T00:03:54ZFulvio SenoreVadim Zeitlin ha scritto:
<div class='shrinkable-quote'><br>> On Mon, 14 Dec 2009 20:41:00 +0100 Fulvio Senore <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26791084&i=0" target="_top" rel="nofollow">mailing@...</a>> wrote:
<br>>
<br>> FS> Thank you for your answer. I considered EmulateKeyPress() but the
<br>> FS> documentation says that it only works in Windows, so I did not even try it.
<br>>
<br>> It says that it doesn't work correctly for all keys except under Windows
<br>> because it's basically implemented as WriteText(event.GetKeyCode()) for the
<br>> other platforms (with a few exceptions, see src/common/textcmn.cpp). I.e.
<br>> it already does what you wanted to do manually (or at least is supposed to,
<br>> let us know if you find any bugs).
<br>>
</div><br>Thank you for pointing me to that code. Since my needs are very limited
<br>(change a dot to a comma in the OnChar() handler) I simply used
<br>WriteText() to directly write the comma to the text control, and it works.
<br><br>Fulvio
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26790963Re: Program Segfaulting2009-12-14T23:52:29Z2009-12-14T23:52:29ZTim-447Hi Polymath,
<br><br>I think you haven't moved everything from the wxApp to the wxFrame, so the callbacks are having trouble.
<br><br>For example, you have these two callbacks
<br><br> QuitButton->Connect(wxID_EXIT, wxEVT_COMMAND_BUTTON_CLICKED,
<br> wxCommandEventHandler(MandelbrotApp::OnQuit));
<br><br> GenerateButton->Connect(wxID_ANY, wxEVT_COMMAND_BUTTON_CLICKED,
<br> wxCommandEventHandler(MandelbrotApp::OnGenerate));
<br><br>The button sits on the panel. The panel sits on the frame. The frame has no parent. So the button callback should be handled by one of the windows in that heirarchy: either the button, the panel or the frame. The app is not a window and cannot receive the callback and I think that is why it abruptly crashes.
<br><br>Why are you calling the Connect() function directly? Usually this is done through a set of macros like this:
<br><br> BEGIN_EVENT_TABLE(MyFrame, wxFrame)
<br> EVT_MENU(ID_Quit, MyFrame::OnQuit)
<br> EVT_MENU(ID_About, MyFrame::OnAbout)
<br> END_EVENT_TABLE()
<br><br>Just about all of the examples use this type of an EVENT_TABLE and I think it does some error checking for you. Did you find some other example which calls Connect() directly which you liked better?
<br><br>Here is what I recommend.
<br><br> a) Make another class MandlebrotFrame which inherits from wxFrame
<br><br> b) Move all of the callbacks and pointers from class MandlebrotApp to MandlebrotFrame
<br><br> c) In MandlebrotApp::OnInit create and show the frame. All of the other stuff should be move to the constructor for MandlebrotFrame
<br><br> d) RefreshSize, DrawMandlebrot, OnQuit, OnGenerate, GenerateDialog should be in class MandelbrotFrame not MandlebrotApp
<br><br> e) Currently nothing in your program calls DrawMandlebrot. I think maybe it should be called when someone clicks OK in OnGenerate?
<br><br> f) In OnGenerate, you have this->OnQuit(event); which causes the App to quit if cancel is pushed on GenerateDialog. That seems incorrect.
<br><br> g) You will need an OnPaint() method to redraw areas when the user moves a window in front of your window. More info below.
<br><br>Now take a look at samples/drawing/drawing.cpp to see some of these concepts. I'll use the same letters as above to indicate what I'm talking about.
<br><br> a) See how MyFrame inherits from wxFrame
<br><br> b) Note that MyApp has no child windows and very few functions. All of the callbacks are in the two other classes MyFrame and MyCanvas both of which are windows because they inherit from classes that inherit from wxWindow
<br><br> c) Note how short MyApp:OnInit is. Yours should be just as short, creating the top level window. Now compare to the constructor MyFrame::MyFrame. Lots of UI stuff is created in that constructor for MyFrame
<br><br> d) Note that all of the window callbacks are in MyFrame or MyCanvas, not in MyApp::OnInit. So the window callbacks will go to the the window in which it occurred or to it's parent window. None of the callbacks go to the application wxApp.
<br><br> g) follow the model in MyCanvas::OnPaint. OnPaint fixes your drawing if any of these things occur: Another window comes in front and obscures it, the window gets minimized, half of the window goes offscreen. When you use buttons, menus, and lists, those things are smart enough to redraw themselves. However, if you use pens and brushes (which you are doing) then you need to redraw those lines yourself anytime they get overwritten by another window. That is the purpose of the OnPaint callback.
<br><br>Note that MyFrame and MyCanvas both have BEGIN_EVENT_TABLE, but MyApp does not.
<br><br>Now go look at samples/image/image.cpp
<br><br>It has the same concepts:
<br> MyCanvas is a window because it inherits from wxScrolledWindow
<br> MyFrame is a window because it inherits from wxFrame which is a window
<br> MyImageFrame is a window because it inherits from wxFrame which is a window
<br> MyApp is not a window, it inherits from wxApp
<br> You can find one BEGIN_EVENT_TABLE per Window.
<br> MyApp does not have a BEGIN_EVENT_TABLE because it is not a window
<br> Each window has an OnPaint() callback so it can redraw itself when it because corrupted by another window.
<br><br>Hopefully those two examples image/image.cpp and drawing/drawing.cpp will help you see what you need to change.
<br><br>Tim
<br><br>--- On Sun, 12/13/09, polymath <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26790963&i=0" target="_top" rel="nofollow">rbmj@...</a>> wrote:
<br><div class='shrinkable-quote'><br>> From: polymath <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26790963&i=1" target="_top" rel="nofollow">rbmj@...</a>>
<br>> Subject: Re: Program Segfaulting
<br>> To: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26790963&i=2" target="_top" rel="nofollow">wx-users@...</a>
<br>> Date: Sunday, December 13, 2009, 4:37 PM
<br>>
<br>> Thank You! I knew it was something I had forgotten to do- I
<br>> concentrated so
<br>> much on implementation and didn't remember to make a
<br>> frame.
<br>>
<br>> However, now i have another small problem. I added a
<br>> wxFrame* frame to my
<br>> wxApp class, and the main window works, but when i click
<br>> either button, it
<br>> segfaults. I put a breakpoint in the OnQuit handler,
<br>> and it got there, so
<br>> the problem is in the statement
<br>> frame->Close(true); The backtrace confirms
<br>> this, but i'm not exactly sure what it says (mainly a bunch
<br>> of GTK gunk)-
<br>> all i know is that the last called function was Close() and
<br>> before that is
<br>> my OnQuit handler, so its something in the Close
<br>> function.
<br>>
<br>> The same happens with the Generate button. THe backtrace
<br>> says that the last
<br>> called function was wxGetTopLevelParent(wxWindow*), which
<br>> was inside
<br>> wxTopLevelDialogGTK::Create, which was called because of
<br>> wxDialog::Create.
<br>> wxDialog::Create is part of the constructor for wxDialog,
<br>> so i guess i'm not
<br>> calling the constructor correctly.
<br>>
<br>> I call the wxDialog Constructor like this: new
<br>> wxDialog(frame, wxID_ANY,
<br>> wxT("Generate"));
<br>> and frame was constructed with new wxFrame(NULL, wxID_ANY,
<br>> wxT("Mandelbrot
<br>> Generator"));
<br>>
<br>> I see two possible screwups here. One, i can't use
<br>> wxID_ANY twice. THough
<br>> i don't *think* this is the case, it might be. On the
<br>> other hand, frame is
<br>> the same frame used to display the main interface. So
<br>> maybe i can't
<br>> Show()/ShowModal() two things at once, i.e. i would have to
<br>> either create a
<br>> new frame for the dialog or hide the existing window until
<br>> the dialog
<br>> completes. I really don't know how to solve either
<br>> problem, much less if
<br>> one of these is even the actual problem.
<br>>
<br>> If its useful, my updated source is attatched (but its
<br>> almost the same as
<br>> the old source, just added the frame).
<br>> <a href="http://old.nabble.com/file/p26767527/mandelbrot_graphics.cpp" target="_top" rel="nofollow">http://old.nabble.com/file/p26767527/mandelbrot_graphics.cpp</a><br>> mandelbrot_graphics.cpp
<br>>
<br>> Thanks again!
<br>>
<br>>
<br>> Hi Polymath,
<br>>
<br>> You are casting an wxApp to a wxWindow but they are the
<br>> same thing.
<br>> ...
<br>> I think if you create a frame, set it as your top window,
<br>> and put your
<br>> widgets on this frame, it will fix the problems you are
<br>> seeing and you won't
<br>> need any casts. Look at how the samples do this or
<br>> read this:
<br>> <a href="http://www.wxwidgets.org/docs/tutorials/hello.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/docs/tutorials/hello.htm</a><br>>
<br>> Tim
<br>> --
<br>> View this message in context: <a href="http://old.nabble.com/Program-Segfaulting-tp26760885p26767527.html" target="_top" rel="nofollow">http://old.nabble.com/Program-Segfaulting-tp26760885p26767527.html</a><br>> Sent from the wxWidgets - Users mailing list archive at
<br>> Nabble.com.
<br>>
<br>> --
<br>> Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before
<br>> posting.
<br>>
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</div><br><br>
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<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26788081RE: Re[12]: wxStaticText stops displaying text after tab character2009-12-14T17:36:26Z2009-12-14T17:36:26ZHighCommander4<div class='shrinkable-quote'><br>> From: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26788081&i=0" target="_top" rel="nofollow">ikorot@...</a>
<br>>
<br>> Hi, (Nathan, Vadim),
<br>>
<br>>>From: Nathan Ridge
<br>>>
<br>>> <snip>
<br>>>
<br>>>I was not able to figure out how to get GetTabbedTextExtent()
<br>>>to use the same tab spacing as TextOut(), so I implemented
<br>>>your suggested manual solution. Here's the patch against
<br>>>the original dc.cpp:
<br>>>
<br>>>diff -u -b dc.cpp.orig dc.cpp
<br>>>--- dc.cpp.orig Mon Dec 14 16:42:01 2009
<br>>>+++ dc.cpp Mon Dec 14 17:45:25 2009
<br>>>@@ -42,6 +42,7 @@
<br>>>
<br>>> #include "wx/sysopt.h"
<br>>> #include "wx/dynlib.h"
<br>>>+#include "wx/tokenzr.h"
<br>>>
<br>>> #ifdef wxHAVE_RAW_BITMAP
<br>>> #include "wx/rawbmp.h"
<br>>>@@ -1769,6 +1770,61 @@
<br>>> wxLogLastError(_T("GetTextExtentPoint32()"));
<br>>> }
<br>>>
<br>>>+ // The width of strings containing tabs needs to be treated specially
<br>>>+ // because GetTextExtentPoint32() does not handle tabs correctly.
<br>>>+ if ( string.Find('\t') != wxNOT_FOUND )
<br>>>+ {
<br>>>+ // Note: while there is a GetTabbedTextExtent() API, it does
<br>>>+ // not appear to handle tabs correctly either, so we need to do
<br>>>+ // some manual computation.
<br>>>+
<br>>>+ // Compute the average character width.
<br>>>+ // Tab stop positions are multiples of 8 of this.
<br>>>+ // Note: this computation cannot be done just once in advance because
<br>>>+ // the font may change, giving a different answer.
<br>>>+ static wxString allChars = "abcdefghijklmnopqrstuvwxyz"
<br>>>+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
<br>>>+ const size_t allCharsLen = allChars.length();
<br>>>+ SIZE allCharsSizeRect;
<br>>>+ if ( !::GetTextExtentPoint32(GetHdc(), allChars, allCharsLen,
<br>>>+ &allCharsSizeRect) )
<br>>>+ {
<br>>>+ wxLogLastError(_T("GetTextExtentPoint32()"));
<br>>>+ }
<br>>>+ DWORD avgCharWidth = allCharsSizeRect.cx / allCharsLen;
<br>>>+ DWORD tabWidth = avgCharWidth * 8;
<br>>>+
<br>>>+ // Split the string into chunks separated by tabs,
<br>>>+ // and add up the widths the chunks plus the tabs
<br>>>+ // betweent them.
<br>>>+ // Note: we use wxTOKEN_RET_EMPTY_ALL while tokenizing so that
<br>>>+ // multiple consecutive tabs and trailing tabs are handled correctly.
<br>>>+ DWORD width = 0;
<br>>>+ wxStringTokenizer tokenizer(string, '\t', wxTOKEN_RET_EMPTY_ALL);
<br>>>+ while ( tokenizer.HasMoreTokens() )
<br>>>+ {
<br>>>+ // Compute width of token.
<br>>>+ SIZE tokenSizeRect;
<br>>>+ wxString token = tokenizer.GetNextToken();
<br>>>+ const size_t tokenLen = token.length();
<br>>>+ if ( !::GetTextExtentPoint32(GetHdc(), token, tokenLen,
<br>>>+ &tokenSizeRect) )
<br>>>+ {
<br>>>+ wxLogLastError(_T("GetTextExtentPoint32()"));
<br>>>+ }
<br>>>+ width += tokenSizeRect.cx;
<br>>>+
<br>>>+ // If there are more tokens, there is a tab between this
<br>>>+ // token and the next. Compute its length.
<br>>>+ if ( tokenizer.HasMoreTokens() )
<br>>>+ width = ((width / tabWidth) + 1) * tabWidth;
<br>>>+ }
<br>>>+
<br>>>+ // Overwrite value computed by GetTextExtentPoint32() with the
<br>>>+ // correct value.
<br>>>+ sizeRect.cx = width;
<br>>>+ }
<br>>>+
<br>>> #if !defined(_WIN32_WCE) || (_WIN32_WCE>= 400)
<br>>> // the result computed by GetTextExtentPoint32() may be too small as it
<br>>> // accounts for under/overhang of the first/last character while we want
<br>>>
<br>>>
<br>>>I've tried this on a variety of strings, including on strings with
<br>>>multiple consecutive tabs and trailing tabs. It works correctly
<br>>>for every string I tried. Also, it does not do any extra work
<br>>>for strings that do not contain tabs.
<br>>>
<br>>>If someone can figure out how to use GetTabbedTextExtent() properly,
<br>>>that would obviously be a better solution, but until then this manual
<br>>>solution is the best I have.
<br>>
<br>> Maybe it's not even possible to do this?
<br>> Here is an except from the VC++5 help:
<br>>
<br>> "Because some devices do not place characters in regular cell arrays
<br>> (that is, they kern the characters), the sum of the extents of the
<br>> characters in a string may not be equal to the extent of the string."
<br>>
<br>> I'm assuming that in this case the function won't fail, but just produce
<br>> incorrect results.
<br>>
<br>> Thank you.
<br>>
</div><br>My understanding is that the point of kerning is to adjust the spacing
<br>between consecutive characters to make the text look more natural.
<br>I don't see how it would make sense to have any "kerning" between
<br>visible characters and tabs. Since I only split the string at
<br>visible character-tab boundaries, I don't think kerning will be a problem.
<br>
<br>I could be wrong, of course, but I haven't come across a string for which
<br>this modified version of DoGetTextExtent() returns an incorrect result,
<br>not even off by a few pixels.
<br>
<br>Regards,
<br>Nate.
<br>_________________________________________________________________
<br>Windows Live: Keep your friends up to date with what you do online.
<br><a href="http://go.microsoft.com/?linkid=9691815" target="_top" rel="nofollow">http://go.microsoft.com/?linkid=9691815</a><br><br>--
<br>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
<br><br>To unsubscribe, send email to <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26788081&i=1" target="_top" rel="nofollow">wx-users+unsubscribe@...</a>
<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26787585Re: Re[12]: wxStaticText stops displaying text after tab character2009-12-14T16:33:16Z2009-12-14T16:33:16ZikorotHi, (Nathan, Vadim),
<br><br>-----Original Message-----
<div class='shrinkable-quote'><br>>From: Nathan Ridge <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26787585&i=0" target="_top" rel="nofollow">zeratul976@...</a>>
<br>>Sent: Dec 14, 2009 5:52 PM
<br>>To: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26787585&i=1" target="_top" rel="nofollow">wx-users@...</a>
<br>>Subject: Re[12]: wxStaticText stops displaying text after tab character
<br>>
<br>>
<br>>> From: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26787585&i=2" target="_top" rel="nofollow">vadim@...</a>
<br>>> Subject: Re[11]: wxStaticText stops displaying text after tab character
<br>>> To: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26787585&i=3" target="_top" rel="nofollow">wx-users@...</a>
<br>>>
<br>>> On Mon, 14 Dec 2009 06:35:40 +0000 Nathan Ridge wrote:
<br>>>
<br>>> NR> Perhaps we can use GetTabbedTextExtent() instead of GetTextExtentPoint32()?
<br>>>
<br>>> This looks like exactly the right function to use, I simply didn't know
<br>>> about it, thanks!
<br>>>
<br>>> Just to play a devil advocate it could be argued that maybe wxDC doesn't
<br>>> need to use it as, after all, it doesn't use TabbedTextOut() in its
<br>>> DrawText(). Maybe it would be better to provide separate function for text
<br>>> with TABs just as MSW itself does (I'd prefer to append a flags parameter
<br>>> to GetTextExtent() but this would require changing all derived wxDC
<br>>> classes). Of course, this objection has nothing to do with whether we use
<br>>> GetTabbedTextExtent() or the manual solution I initially thought of, it's
<br>>> just that now that I see that MSW has different functions for normal and
<br>>> tabbed text I start thinking that it might be a bad idea to always use the
<br>>> tabbed versions.
<br>>>
<br>>> <snip>
<br>>>
<br>>> All I can offer is a patch for testing this function which I found
<br>>> convenient to use as using wxBORDER_SIMPLE allows to see the computed
<br>>> control size visually:
<br>>>
<br>>
<br>>Thanks for that patch, it made debugging this much easier!
<br>>
<br>>It turns out GetTabbedTextExtent() barely ever returns the correct
<br>>length for strings with tabs in them. Sometimes it leaves extra space
<br>>at the end of the string, and sometimes it cuts the string off.
<br>>
<br>>The reason for all this, it seems, is that the tab spacing used
<br>>by GetTabbedTextExtent() is not the same as the one used by TextOut().
<br>>This is evident when you display "\t" and "\ta" one underneath
<br>>the other. The box around the "\t" is wider than the amount of space
<br>>actually taken up by the tab in "\ta", indicating that the tab spacing
<br>>used by GetTabbedTextExtent() to compute the length of "\t"
<br>>is larger than the tab spacing used by TextOut() to display a tab
<br>>at the beginning of a line.
<br>>
<br>>I tried changing wxDC::DrawText() to use TabbedTextOut() instead of
<br>>TextOut(), but the results were identical: there appears to be
<br>>no difference between the spacing used by TextOut() and TabbedTextOut().
<br>>
<br>>I was not able to figure out how to get GetTabbedTextExtent()
<br>>to use the same tab spacing as TextOut(), so I implemented
<br>>your suggested manual solution. Here's the patch against
<br>>the original dc.cpp:
<br>>
<br>>diff -u -b dc.cpp.orig dc.cpp
<br>>--- dc.cpp.orig Mon Dec 14 16:42:01 2009
<br>>+++ dc.cpp Mon Dec 14 17:45:25 2009
<br>>@@ -42,6 +42,7 @@
<br>>
<br>> #include "wx/sysopt.h"
<br>> #include "wx/dynlib.h"
<br>>+#include "wx/tokenzr.h"
<br>>
<br>> #ifdef wxHAVE_RAW_BITMAP
<br>> #include "wx/rawbmp.h"
<br>>@@ -1769,6 +1770,61 @@
<br>> wxLogLastError(_T("GetTextExtentPoint32()"));
<br>> }
<br>>
<br>>+ // The width of strings containing tabs needs to be treated specially
<br>>+ // because GetTextExtentPoint32() does not handle tabs correctly.
<br>>+ if ( string.Find('\t') != wxNOT_FOUND )
<br>>+ {
<br>>+ // Note: while there is a GetTabbedTextExtent() API, it does
<br>>+ // not appear to handle tabs correctly either, so we need to do
<br>>+ // some manual computation.
<br>>+
<br>>+ // Compute the average character width.
<br>>+ // Tab stop positions are multiples of 8 of this.
<br>>+ // Note: this computation cannot be done just once in advance because
<br>>+ // the font may change, giving a different answer.
<br>>+ static wxString allChars = "abcdefghijklmnopqrstuvwxyz"
<br>>+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
<br>>+ const size_t allCharsLen = allChars.length();
<br>>+ SIZE allCharsSizeRect;
<br>>+ if ( !::GetTextExtentPoint32(GetHdc(), allChars, allCharsLen,
<br>>+ &allCharsSizeRect) )
<br>>+ {
<br>>+ wxLogLastError(_T("GetTextExtentPoint32()"));
<br>>+ }
<br>>+ DWORD avgCharWidth = allCharsSizeRect.cx / allCharsLen;
<br>>+ DWORD tabWidth = avgCharWidth * 8;
<br>>+
<br>>+ // Split the string into chunks separated by tabs,
<br>>+ // and add up the widths the chunks plus the tabs
<br>>+ // betweent them.
<br>>+ // Note: we use wxTOKEN_RET_EMPTY_ALL while tokenizing so that
<br>>+ // multiple consecutive tabs and trailing tabs are handled correctly.
<br>>+ DWORD width = 0;
<br>>+ wxStringTokenizer tokenizer(string, '\t', wxTOKEN_RET_EMPTY_ALL);
<br>>+ while ( tokenizer.HasMoreTokens() )
<br>>+ {
<br>>+ // Compute width of token.
<br>>+ SIZE tokenSizeRect;
<br>>+ wxString token = tokenizer.GetNextToken();
<br>>+ const size_t tokenLen = token.length();
<br>>+ if ( !::GetTextExtentPoint32(GetHdc(), token, tokenLen,
<br>>+ &tokenSizeRect) )
<br>>+ {
<br>>+ wxLogLastError(_T("GetTextExtentPoint32()"));
<br>>+ }
<br>>+ width += tokenSizeRect.cx;
<br>>+
<br>>+ // If there are more tokens, there is a tab between this
<br>>+ // token and the next. Compute its length.
<br>>+ if ( tokenizer.HasMoreTokens() )
<br>>+ width = ((width / tabWidth) + 1) * tabWidth;
<br>>+ }
<br>>+
<br>>+ // Overwrite value computed by GetTextExtentPoint32() with the
<br>>+ // correct value.
<br>>+ sizeRect.cx = width;
<br>>+ }
<br>>+
<br>> #if !defined(_WIN32_WCE) || (_WIN32_WCE>= 400)
<br>> // the result computed by GetTextExtentPoint32() may be too small as it
<br>> // accounts for under/overhang of the first/last character while we want
<br>>
<br>>
<br>>I've tried this on a variety of strings, including on strings with
<br>>multiple consecutive tabs and trailing tabs. It works correctly
<br>>for every string I tried. Also, it does not do any extra work
<br>>for strings that do not contain tabs.
<br>>
<br>>If someone can figure out how to use GetTabbedTextExtent() properly,
<br>>that would obviously be a better solution, but until then this manual
<br>>solution is the best I have.
</div><br>Maybe it's not even possible to do this?
<br>Here is an except from the VC++5 help:
<br><br>"Because some devices do not place characters in regular cell arrays
<br>(that is, they kern the characters), the sum of the extents of the
<br>characters in a string may not be equal to the extent of the string."
<br><br>I'm assuming that in this case the function won't fail, but just produce
<br>incorrect results.
<br><br>Thank you.
<br><div class='shrinkable-quote'><br>>
<br>>Let me know if I still should open a Trac ticket about this issue.
<br>>
<br>>Regards,
<br>>Nate.
<br>>
<br>>_________________________________________________________________
<br>>Eligible CDN College & University students can upgrade to Windows 7 before Jan 3 for only $39.99. Upgrade now!
<br>><a href="http://go.microsoft.com/?linkid=9691819" target="_top" rel="nofollow">http://go.microsoft.com/?linkid=9691819</a><br>>
<br>>--
<br>>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
<br>>
<br>>To unsubscribe, send email to <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26787585&i=4" target="_top" rel="nofollow">wx-users+unsubscribe@...</a>
<br>>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a></div><br>--
<br>Please read <a href="http://www.wxwidgets.org/support/mlhowto.htm" target="_top" rel="nofollow">http://www.wxwidgets.org/support/mlhowto.htm</a> before posting.
<br><br>To unsubscribe, send email to <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26787585&i=5" target="_top" rel="nofollow">wx-users+unsubscribe@...</a>
<br>or visit <a href="http://groups.google.com/group/wx-users" target="_top" rel="nofollow">http://groups.google.com/group/wx-users</a><br><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26786564Re[2]: Changing a dot into a comma in an OnChar event2009-12-14T15:01:11Z2009-12-14T15:01:11ZVadim Zeitlin-4On Mon, 14 Dec 2009 20:41:00 +0100 Fulvio Senore <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26786564&i=0" target="_top" rel="nofollow">mailing@...</a>> wrote:
<br><br>FS> Thank you for your answer. I considered EmulateKeyPress() but the
<br>FS> documentation says that it only works in Windows, so I did not even try it.
<br><br> It says that it doesn't work correctly for all keys except under Windows
<br>because it's basically implemented as WriteText(event.GetKeyCode()) for the
<br>other platforms (with a few exceptions, see src/common/textcmn.cpp). I.e.
<br>it already does what you wanted to do manually (or at least is supposed to,
<br>let us know if you find any bugs).
<br><br> Regards,
<br>VZ
<br><br>--
<br>TT-Solutions: wxWidgets consultancy and technical support
<br> <a href="http://www.tt-solutions.com/" target="_top" rel="nofollow">http://www.tt-solutions.com/</a><br><br /> <div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>attachment0</strong> (203 bytes) <a href="http://old.nabble.com/attachment/26786564/0/attachment0" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/wxWidgets---Users-f14279.html" embed="fixTarget[14279]" target="_top" >wxWidgets - Users</a></p>tag:old.nabble.com,2006:post-26786447Re[12]: wxStaticText stops displaying text after tab character2009-12-14T14:52:00Z2009-12-14T14:52:00ZHighCommander4<div class='shrinkable-quote'><br>> From: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26786447&i=0" target="_top" rel="nofollow">vadim@...</a>
<br>> Subject: Re[11]: wxStaticText stops displaying text after tab character
<br>> To: <a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26786447&i=1" target="_top" rel="nofollow">wx-users@...</a>
<br>>
<br>> On Mon, 14 Dec 2009 06:35:40 +0000 Nathan Ridge wrote:
<br>>
<br>> NR> Perhaps we can use GetTabbedTextExtent() instead of GetTextExtentPoint32()?
<br>>
<br>> This looks like exactly the right function to use, I simply didn't know
<br>> about it, thanks!
<br>>
<br>> Just to play a devil advocate it could be argued that maybe wxDC doesn't
<br>> need to use it as, after all, it doesn't use TabbedTextOut() in its
<br>> DrawText(). Maybe it would be better to provide separate function for text
<br>> with TABs just as MSW itself does (I'd prefer to append a flags parameter
<br>> to GetTextExtent() but this would require changing all derived wxDC
<br>> classes). Of course, this objection has nothing to do with whether we use
<br>> GetTabbedTextExtent() or the manual solution I initially thought of, it's
<br>> just that now that I see that MSW has different functions for normal and
<br>> tabbed text I start thinking that it might be a bad idea to always use the
<br>> tabbed versions.
<br>>
<br>> <snip>
<br>>
<br>> All I can offer is a patch for testing this function which I found
<br>> convenient to use as using wxBORDER_SIMPLE allows to see the computed
<br>> control size visually:
<br>>
</div>
<br>Thanks for that patch, it made debugging this much easier!
<br>
<br>It turns out GetTabbedTextExtent() barely ever returns the correct
<br>length for strings with tabs in them. Sometimes it leaves extra space
<br>at the end of the string, and sometimes it cuts the string off.
<br>
<br>The reason for all this, it seems, is that the tab spacing used
<br>by GetTabbedTextExtent() is not the same as the one used by TextOut().
<br>This is evident when you display "\t" and "\ta" one underneath
<br>the other. The box around the "\t" is wider than the amount of space
<br>actually taken up by the tab in "\ta", indicating that the tab spacing
<br>used by GetTabbedTextExtent() to compute the length of "\t"
<br>is larger than the tab spacing used by TextOut() to display a tab
<br>at the beginning of a line.
<br>
<br>I tried changing wxDC::DrawText() to use TabbedTextOut() instead of
<br>TextOut(), but the results were identical: there appears to be
<br>no difference between the spacing used by TextOut() and TabbedTextOut().
<br>
<br>I was not able to figure out how to get GetTabbedTextExtent()
<br>to use the same tab spacing as TextOut(), so I implemented
<br>your suggested manual solution. Here's the patch against
<br>the original dc.cpp:
<br>
<br>diff -u -b dc.cpp.orig dc.cpp
<br>--- dc.cpp.orig Mon Dec 14 16:42:01 2009
<br>+++ dc.cpp Mon Dec 14 17:45:25 2009
<br>@@ -42,6 +42,7 @@
<br>
<br> #include "wx/sysopt.h"
<br> #include "wx/dynlib.h"
<br>+#include "wx/tokenzr.h"
<br>
<br> #ifdef wxHAVE_RAW_BITMAP
<br> #include "wx/rawbmp.h"
<br>@@ -1769,6 +1770,61 @@
<br> wxLogLastError(_T("GetTextExtentPoint32()"));
<br> }
<br>
<br>+ // The width of strings containing tabs needs to be treated specially
<br>+ // because GetTextExtentPoint32() does not handle tabs correctly.
<br>+ if ( string.Find('\t') != wxNOT_FOUND )
<br>+ {
<br>+ // Note: while there is a GetTabbedTextExtent() API, it does
<br>+ // not appear to handle tabs correctly either, so we need to do
<br>+ // some manual computation.
<br>+
<br>+ // Compute the average character width.
<br>+ // Tab stop positions are multiples of 8 of this.
<br>+ // Note: this computation cannot be done just once in advance because
<br>+ // the font may change, giving a different answer.
<br>+ static wxString allChars = "abcdefghijklmnopqrstuvwxyz"
<br>+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
<br>+ const size_t allCharsLen = allChars.length();
<br>+ SIZE allCharsSizeRect;
<br>+ if ( !::GetTextExtentPoint32(GetHdc(), allChars, allCharsLen,
<br>+ &allCharsSizeRect) )
<br>+ {
<br>+ wxLogLastError(_T("GetTextExtentPoint32()"));
<br>+ }
<br>+ DWORD avgCharWidth = allCharsSizeRect.cx / allCharsLen;
<br>+ DWORD tabWidth = avgCharWidth * 8;
<br>+
<br>+ // Split the string into chunks separated by tabs,
<br>+ // and add up the widths the chunks plus the tabs
<br>+ // betweent them.
<br>+ // Note: we use wxTOKEN_RET_EMPTY_ALL while tokenizing so that
<br>+ // multiple consecutive tabs and trailing tabs are handled correctly.
<br>+ DWORD width = 0;
<br>+ wxStringTokenizer tokenizer(string, '\t', wxTOKEN_RET_EMPTY_ALL);
<br>+ while ( tokenizer.HasMoreTokens() )
<br>+ {
<br>+ // Compute width of token.
<br>+ SIZE tokenSizeRect;
<br>+ wxString token = tokenizer.GetNextToken();
<br>+ const size_t tokenLen = token.length();
<br>+ if ( !::GetTextExtentPoint32(GetHdc(), token, tokenLen,
<br>+ &tokenSizeRect) )
<br>+ {
<br>+ wxLogLastError(_T("GetTextExtentPoint32()"));
<br>+ }
<br>+ width += tokenSizeRect.cx;
<br>+
<br>+ // If there are more tokens, there is a tab between this
<br>+ // token and the next. Compute its length.
<br>+ if ( tokenizer.HasMoreTokens() )
<br>+ width = ((width / tabWidth) + 1) * tabWidth;
<br>+ }
<br>+
<br>+ // Overwrite value computed by GetTextExtentPoint32() with the
<br>+ // correct value.
<br>+ sizeRect.cx = width;
<br>+ }
<br>+
<br> #if !defined(_WIN32_WCE) || (_WIN32_WCE>= 400)
<br> // the result computed by GetTextExtentPoint32() may be too small as it
<br> // accounts for under/overhang of the first/last character while we want
<br><br>
<br>I've tried this on a variety of strings, including on strings with
<br>multiple consecutive tabs and trailing tabs. It works correctly
<br>for every string I tried. Also, it does not do any extra work
<br>for strings that do not contain tabs.
<br>
<br>If someone can figure out how to use GetTabbedTextExtent() properly,
<br>that would obviously be a better solution, but until then this manual
<br>solution is the best I have.
<br>
<br>Let me know if I still should open a Trac ticket about this issue.
<br>
<br>Regards,
<br>Nate.
<br>
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