Re: wx.lib.agw.aui.AuiNotebook => Tab drag/drop bug

I checked the problem also with the new demo on 
https://github.com/wxWidgets/Phoenix. If you start the "AUI test frame" 
from the demo and you try dragging the tabs, the same bug appears 
=> self.ReleaseMouse() raise an wx._core.wxAssertionError ...

Am Samstag, 26. November 2016 06:57:12 UTC+1 schrieb Harald Hanöfner:
>
> I agree. But the problem is within the wxPython (Phoenix) package. And the 
> same code works fine with the Classic version, but not with the phoenix 
> version. I don't no what I have to do?
>
> Am Donnerstag, 24. November 2016 20:14:05 UTC+1 schrieb Eric Fahlgren:
>>
>> Hmm, I have some code that does mouse capture, and I couldn't get 
>> HasCapture to work either (written maybe 10 years ago???  never re-examined 
>> it).  I just added a "self.captured" state, changing it explicitly when I 
>> capture and release, then added an event handler to change the state when I 
>> don't get that explicit enter/leave event.  I suspect HasCapture is missing 
>> something like this?
>>
>> >>> self.Bind(wx.EVT_MOUSE_CAPTURE_LOST, self.OnCaptureLost)
>>
>>
>> On Thu, Nov 24, 2016 at 9:48 AM, Harald Hanöfner <[email protected]> 
>> wrote:
>>
>>> If you want drag-and-drop a tab of a wx.lib.agw.aui.AuiNotebook the 
>>> application hangs after releasing the left mouse and the following error 
>>> message occurs.
>>> (Environment: Python 3.5.2 | 
>>> wxPython_Phoenix-3.0.3.dev2680+55dda48-cp35-cp35m-win32.whl | Windows 10)
>>>
>>> Traceback (most recent call last):
>>>   File "C:\Program Files (x86)\Python 
>>> 3.5\lib\site-packages\wx\lib\agw\aui\auibook.py", line 2023, in OnLeftUp
>>>     self.ReleaseMouse()
>>> wx._core.wxAssertionError: C++ assertion 
>>> "!wxMouseCapture::stack.empty()" failed at ..\..\src\common\wincmn.cpp(
>>> 3319) in wxWindowBase::ReleaseMouse(): Releasing mouse capture but 
>>> capture stack empty?
>>>
>>> When I look into the code I see the following there:
>>>
>>> 2022            if self.HasCapture():
>>> 2023                self.ReleaseMouse()
>>>
>>> Very surprising, because the mouse releasing is checked before the 
>>> call!? I have no idea why that exception raised. With python 2.7 and 
>>> wxPython 3.0.2.0 this code makes no problems.
>>>
>>> A similar problem I have sometimes when I move the whole application 
>>> window. Then I get the following error message.
>>>
>>> Traceback (most recent call last):
>>>   File "C:\Program Files (x86)\Python 
>>> 3.5\lib\site-packages\wx\lib\agw\aui\framemanager.py", line 9219, in 
>>> OnLeftUp
>>>     self._frame.ReleaseMouse()
>>> wx._core.wxAssertionError: C++ assertion 
>>> "!wxMouseCapture::stack.empty()" failed at ..\..\src\common\wincmn.cpp(
>>> 3319) in wxWindowBase::ReleaseMouse(): Releasing mouse capture but 
>>> capture stack empty?
>>>
>>> But that error only appears very seldom and not predictable. But the 
>>> problem is the same as above => with calling the method ReleaseMouse() 
>>> despite of a previous HasCapture() check.
>>>
>>> Hope somebody can help me. Thanks!
>>>
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>>
>>

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