This replaces ToolAction by a near-drop-in replacement named ToggleActionMenu. The new annotation toolbar already uses this (D15580).
Unlike ToolAction, ToggleActionMenu inherits from KActionMenu to be more flexible.
* Menu can be set from outside, not hard coded.
* Default action for toolbar button is controllable from outside. (Theoretically, the button could trigger //anything// now.)
* KActionMenu instead of KSelectAction:
- Pluggable in other menus, thus called “Menu”.
- Doesn’t make the actions exclusive, so //any// actions can be added to the menu.
* ImplicitDefaultAction mode can choose the default action of the toolbar buttons automatically, by looking for the first checked action in the menu.
Toolbar buttons use the default action //of// this menu, not this menu itself as action.
Because the default action is configurable now, D21622 and D21635 (where we tried to fine-tune ToolAction) become obsolete.
Screenshot:
Everything like before, here with mouse_selecttool added to Tools menu to show submenu capability.
{F6884228}