On Wed, Oct 17, 2018 at 2:09 PM <[email protected]> wrote:
> On Tuesday, October 16, 2018 at 8:21:02 PM UTC-4, Michael Boon wrote:
> > I think Wexler has basically what you need there.
> > All the self.my_btn stuff should be in a function, probably in __init__
> for a simple case.
> >
> > You might also need
> > self.my_btn.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
> > and the connections don't need to use a partial function as long as you
> accept the correct arguments in your connected functions.
> >
> > On Wednesday, 17 October 2018 08:07:54 UTC+11, Wexler wrote:
> >
> > Here is an example that might put you in the right track...... please
> note, I did not test this snippet
> >
> >
> >
> >
> >
> > from functools import partial
> >
> > class MyUI(window or dialog or widget or whatever...):
> > # create a button
> > self.my_btn = QtWidgets.QPushButton('Right Click Me')
> > # left click
> > self.my_btn.clicked.connect(partial(self.call_def_left))
> > # set it with custom menu Contex
> >
> self.my_btn.customContextMenuRequested.connect(partial(self.add_menu))
> >
> >
> > # menu thingy, this is the right click
> > def add_menu(self):
> > """ add menus to btns """
> > menu = QtWidgets.QMenu(self)
> >
> >
> > for char_env in [('Char Yes',
> QtGui.QPixmap('img_char_location')),
> > ('Env Yes', QtGui.QPixmap('img_env_location'))
> > ]:
> > action = QtWidgets.QAction(char_env[1], char_env[0], self,
> >
> triggered=partial(self.call_def_YES))
> >
> >
> > # add the action to the menu
> > menu.addAction(action)
> >
> >
> > # exec' the menu on the position of the cursor
> > menu.exec_(QtGui.QCursor.pos())
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > On Tuesday, October 16, 2018 at 1:42:33 PM UTC-7, Adam Baker wrote:I’m
> looking to create a menu that is shown when you preform a right click on a
> button. The photo was an example for the maya.cmds.popupMenu() that I want
> to repeat using QT Instead.
> >
> >
> >
> > Hope this helps
> >
> >
> >
> > - Adam
>
> I am starting to get a little confused with both replies I was able to
> capture to left click using
> self.my_btn.clicked.connect(partial(self.call_def_left)) but unable to show
> the CustomContextMenu with the right click.
>
> could you please simplify this for me ?
>
The CustomContextMenu approach requires 2 thing:
1) widget.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
2) widget.customContextMenuRequested.connect(self.handleMenu)
The first one sets the mode for the way the widget handles context menus to
fire the customContextMenuRequested signal when you right click the widget.
The second one connects that customContextMenuRequested signal to a custom
function, in this case called handleMenu().
For the handler function, Qt will pass you the widget local position if you
want it. Otherwise you can have it accept no arguments and pass a position
directly:
```python
class MyWidget(QtGui.QWidget):
def __init__(self):
super(MyWidget, self).__init__()
self.resize(600,400)
self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.customContextMenuRequested.connect(self._showMenu)
def _showMenu(self):
m = QtGui.QMenu()
m.addAction("test")
m.exec_(QtGui.QCursor.pos())
```
Also, I want to point out one "gotcha" about the example given by Wexler.
When you do something like this:
menu = QMenu(self)
...
menu.exec_()
You are most likely leaking a QMenu instance every time. This is because
the menu has been parented to the widget and once you close the menu, the
instance hangs around. You can either call menu.deleteLater() after the
exec returns, or you can just avoid parenting it to the widget.
Justin
>
> Thanks
> - Adam B.
>
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