Questions about QToolbar/QToolButton

[django.Reinhard]

Hi,

I am experimenting a bit with QToolbar and QToolButtons.
Accidentally I noticed that the toolbar has a context menu that can be used to close the toolbar.

• How can I avoid that the toolbar can be closed?

It should be floatable and moveable, but not closeable.

Another issue I discovered with the QToolButtons. When I apply setDefaultAction() to existing toolbutton, a down arrow appears, which means that the defaultAction has not been replaced but added.

• How can I replace the action of a QToolButton?

[Bonnie]

About the first question, according to the doc of QMainWindow:

The createPopupMenu() function creates popup menus when the main window receives context menu events. The default implementation generates a menu with the checkable actions from the dock widgets and toolbars. You can reimplement createPopupMenu() for a custom menu.

That's the menu you see, not from QToolbar, but from QMainWindow.
If you didn't need any context menu for the main window, you can simply call setContextMenuPolicy(Qt::NoContextMenu) to disable it (this will not affect the context menu of its child widgets).

[django.Reinhard]

Hi,

@Bonnie said in Questions about QToolbar/QToolButton:

That's the menu you see, not from QToolbar, but from QMainWindow.

Ok, as it appears on floating toolbars too, I thought it was the menue of QToolbar.

@Bonnie said in Questions about QToolbar/QToolButton:

you can simply call setContextMenuPolicy(Qt::NoContextMenu)

Thank you very much!!!
That did the trick :)

Regarding the second question - I tried lot of different ways - the only way to get desired visible behaviour is toolbar.clear() followed by recreating the entire toolbar from scratch.
I consider that way as absolutely stupid.
Especially if I want to replace just the third toolbutton.

Isn't there a somewhat more clever way to get same result?
Just as if I want to create a toolbar that reflects function keys.
There are always 12 function keys and the keys have always the same order. So how can I reflect, that i.e. F8 has changed behaviour?

[django.Reinhard]

Hi,

I worked it out :)

I replaced QToolBar and subclassed QToolButton and now I have a toolbar, where you can reference a button by position and replace the action without changing attached shortcut.

That works together with my variant of a statemachine.

See github StateMachine with branch dynamic_toolbar