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QQQ
Hello all,
I would like to have my app flash matching brackets in a QTextEdit.
But I am having problems locking out key events while the flashing
happens. I have tried all the obvious things. For example, in the my
code (see the Post Script), w is a QTextEdit, and the calls to
w.blockSignals(False)
w.setDisabled(False)
don't do the job. Alas, key events during the flashing can replace the
selected text (a bracket) with the incoming key.
Is there native support for flashing that I am overlooking?
Is there example code somewhere that would show how to lock out key
strokes until flashing is complete?
Is there some other recommended approach other than the code below?
Thanks.
Edward
P.S. Here is my present code::
def flashCharacter(self,i,bg='white',fg='red',flashes=3,delay=75):
w = self.widget
def after(func):
QtCore.QTimer.singleShot(delay,func)
def addFlashCallback(self=self,w=w):
n,i = self.flashCount,self.flashIndex
self.setSelectionRange(i,i+1) # = w.setSelection(i,i+1)
self.flashCount -= 1
after(removeFlashCallback)
def removeFlashCallback(self=self,w=w):
n,i = self.flashCount,self.flashIndex
if n > 0:
self.setSelectionRange(i,i)
after(addFlashCallback)
else:
w.blockSignals(False)
w.setDisabled(False)
i = self.afterFlashIndex
self.setSelectionRange(i,i,insert=i) # = w.textCursor
().setPosition(i)
w.setFocus()
self.flashCount = flashes
self.flashIndex = i
self.afterFlashIndex = self.getInsertPoint()
w.setDisabled(True)
w.blockSignals(True)
addFlashCallback()
EKR
QQQ
Edward
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