void
qt_tm_widget_rep::install_main_menu () {
main_menu_widget = waiting_main_menu_widget;
QMenu* src = main_menu_widget->get_qmenu();
if (!src) return;
// REMARK: We do not want the menubar shared across windows as suggested
// in http://doc.qt.nokia.com/4.7/qmainwindow.html#menuBar
// e.g. :
//
// QMenuBar *dest = new QMenuBar(0);
// mainwindow()->setMenuBar(dest);
//
// as the default behavior on MacOS. The main reason is that in TeXmacs
// different windows can have different main menus so that it is indeed
// appropriate to change the main menu as the window focus changes.
// So we kindly ask to each window to give us its own menu and we install
// there our actions.
// So we do:
QMenuBar* dest = mainwindow()->menuBar();
// and everything is fine.
// Also please note that we have to do the replacement and not simply
// install the menu returned by get_qmenu() since the main menu there
// could contain some default items appropriate for the given OS (like the
// service menu on MacOS) which are not present in our menu widget.
// UPDATE: But replaceActions() *does remove* all actions (!?)
// It looks more like the reason is that we have to "flatten out" the first
// level of the QMenu returned... ?
replaceActions (dest, src);
QList<QAction*> list = dest->actions();
for (int i = 0; i < list.count(); i++) {
QAction* a = list[i];
if (a->menu()) {
QObject::connect (a->menu(), SIGNAL (aboutToShow()),
the_gui->gui_helper, SLOT (aboutToShowMainMenu()));
QObject::connect (a->menu(), SIGNAL (aboutToHide()),
the_gui->gui_helper, SLOT (aboutToHideMainMenu()));
}
}
}
void
qt_tm_widget_rep::install_main_menu () {
if (main_menu_widget == waiting_main_menu_widget) return;
main_menu_widget = waiting_main_menu_widget;
QList<QAction*>* src = main_menu_widget->get_qactionlist();
if (!src) return;
QMenuBar* dest = mainwindow()->menuBar();
dest->clear();
for (int i = 0; i < src->count(); i++) {
QAction* a = (*src)[i];
if (a->menu()) {
//TRICK: Mac native QMenuBar accepts only menus which are already populated
// this will cause a problem for us, since menus are lazy and populated only after triggering
// this is the reason we add a dummy action before inserting the menu
a->menu()->addAction("native menubar trick");
dest->addAction(a->menu()->menuAction());
QObject::connect (a->menu(), SIGNAL (aboutToShow()),
the_gui->gui_helper, SLOT (aboutToShowMainMenu()));
QObject::connect (a->menu(), SIGNAL (aboutToHide()),
the_gui->gui_helper, SLOT (aboutToHideMainMenu()));
}
}
}
