[QScintilla] Command modifier problems on Mac OS X

[Phil Thompson]

On Sun, 3 May 2009 21:45:35 -0500, David Hess <dhess at fishsoftware.com>
wrote:
> I'm having trouble with QScintilla accepting Command keystrokes such  
> as Command-C, Command-X, etc.
> 
> My system looks like:
>      QScintilla 2.3.2
>      PyQt4 4.4.4
>      Qt 4.4.3
>      Python 2.5.1
>      Mac OS X 10.5.6
> 
> The following works around the problem somewhat (all letter based  
> Command combinations work).
> 
> -----
> import string
> 
> from PyQt4.QtCore import Qt
> from PyQt4.QtCore import QString
> from PyQt4.QtGui import QKeyEvent
> from PyQt4.Qsci import QsciScintilla
> 
> class ViewerQsciScintilla(QsciScintilla):
>      def keyPressEvent(self, event):
>          if event.text() == "" and \
>                  event.count() == 1 and \
>                  int(event.modifiers()) != 0 and \
>                  event.key() >= Qt.Key_A and \
>                  event.key() <= Qt.Key_Z:
>              new_text = QString(string.ascii_lowercase[event.key() -  
> Qt.Key_A])
>          else:
>              new_text = event.text()
> 
>          new_event = QKeyEvent(event.type(), event.key(),  
> event.modifiers(), new_text, event.isAutoRepeat(), event.count())
>          QsciScintilla.keyPressEvent(self, new_event)
> 
>          if new_event.isAccepted():
>              event.accept()
> -----
> 
> The root of the problem appears to be that  
> QsciScintillaBase::keyPressEvent expects event.text() to be set when a  
> Command modifier is used and it's ending up a zero length string on my  
> Mac.
> 
> Would be happy to work with someone to produce a real bug fix.

Exactly what problem are you having? Does Command-A select all the text?

The event handler effectively ignores events like the press of the Command
key but passes on the subsequent press of the A key (with a flag set saying
the Command modifier is in effect).

Phil