Reputation: 7210
pyQt sub-menu backtrack
I have a menu that has a structure like this:
Elements
A
B
C\
1\
a
b
2\
a
b
D
where Elements is displayed on the menubar anything with a \ has a sub-menu.
In this example I have two a's. I want to be able to distinguish which a was clicked buy getting a list like this for example ['a', '1', 'C', 'Elements'].
Does Qt have a function where I can look up the top menus, or a way of backtracking?
I don't want to have to write a connection for each QAction in the menu because that would be a lot of extra code and rather redundant I think.
Upvotes: 1
Views: 279
Answers (3)
Reputation: 7210
I found another way of solving the problem, below, but I'm going with ekhumoro's answer because his was is cleaner I think.
backtrack = [str(event.text())]
previousWidget = event.associatedWidgets()[0]
while previousWidget.__class__.__name__ != 'QMenuBar':
backtrack.append(str(previousWidget.title()))
previousWidget = previousWidget.parent()
print backtrack
Upvotes: 0
Reputation: 120568
Make use of the QMenu.triggered, QMenuBar.triggered, and QToolBar.actionTriggered signals.
These signals all pass a reference to the action that was triggered, thus avoiding the need to connect each action to an individual slot.
An alternative approach would be to create a subclass of QAction that allows a handler to be passed as an argument to its constructor. All the boiler-plate connection code could then be factored out into the __init__ method. This approach can be more flexible if there are a lot of actions that are re-used in several different menus and toolbars.
Upvotes: 1
