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livetrax/gtk2_ardour/route_group_menu.cc

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/*
Copyright (C) 2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gtkmm/menu.h>
#include <gtkmm/stock.h>
#include "gtkmm2ext/utils.h"
#include "ardour/session.h"
#include "ardour/route_group.h"
#include "ardour/route.h"
#include "route_group_menu.h"
#include "route_group_dialog.h"
#include "i18n.h"
using namespace Gtk;
using namespace ARDOUR;
using namespace PBD;
RouteGroupMenu::RouteGroupMenu (Session* s, PropertyList* plist)
: SessionHandlePtr (s)
, _menu (0)
, _default_properties (plist)
, _inhibit_group_selected (false)
{
}
RouteGroupMenu::~RouteGroupMenu()
{
delete _menu;
delete _default_properties;
}
/** @param s Routes to operate on */
void
RouteGroupMenu::build (WeakRouteList const & s)
{
assert (!s.empty ());
using namespace Menu_Helpers;
_subject = s;
/* FInd all the route groups that our subjects are members of */
std::set<RouteGroup*> groups;
for (WeakRouteList::const_iterator i = _subject.begin (); i != _subject.end(); ++i) {
boost::shared_ptr<Route> r = i->lock ();
if (r) {
groups.insert (r->route_group ());
}
}
_inhibit_group_selected = true;
delete _menu;
/* Note: don't use manage() here, otherwise if our _menu object is attached as a submenu
and its parent is then destroyed, our _menu object will be deleted and we'll have no
way of knowing about it. Without manage(), when the above happens our _menu's gobject
will be destroyed and its value set to 0, so we know.
*/
_menu = new Menu;
MenuList& items = _menu->items ();
items.push_back (MenuElem (_("New Group..."), sigc::mem_fun (*this, &RouteGroupMenu::new_group)));
items.push_back (SeparatorElem ());
RadioMenuItem::Group group;
items.push_back (RadioMenuElem (group, _("No Group")));
RadioMenuItem* i = static_cast<RadioMenuItem *> (&items.back ());
i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteGroupMenu::set_group), (RouteGroup *) 0));
if (groups.size() == 1 && *groups.begin() == 0) {
i->set_active ();
} else if (groups.size() > 1) {
i->set_inconsistent ();
}
if (_session) {
_session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &RouteGroupMenu::add_item), groups, &group));
}
_inhibit_group_selected = false;
}
/** @param rg Route group to add.
* @param groups Active route groups (may included 0 for `no group')
* @param group Radio item group to add radio items to.
*/
void
RouteGroupMenu::add_item (RouteGroup* rg, std::set<RouteGroup*> const & groups, RadioMenuItem::Group* group)
{
using namespace Menu_Helpers;
MenuList& items = _menu->items ();
items.push_back (RadioMenuElem (*group, rg->name()));
RadioMenuItem* i = static_cast<RadioMenuItem*> (&items.back ());
i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteGroupMenu::set_group), rg));
if (groups.size() == 1 && *groups.begin() == rg) {
/* there's only one active group, and it's this one */
i->set_active ();
} else if (groups.size() > 1) {
/* there are >1 active groups */
i->set_inconsistent ();
}
}
/** Called when a group is selected from the menu.
* @param Group, or 0 for none.
*/
void
RouteGroupMenu::set_group (RouteGroup* g)
{
if (_inhibit_group_selected) {
return;
}
for (WeakRouteList::const_iterator i = _subject.begin(); i != _subject.end(); ++i) {
boost::shared_ptr<Route> r = i->lock ();
if (!r || r->route_group () == g) {
/* lock of weak_ptr failed, or the group for this route is already right */
continue;
}
if (g) {
g->add (r);
} else {
if (r->route_group ()) {
r->route_group()->remove (r);
}
}
}
}
void
RouteGroupMenu::new_group ()
{
if (!_session) {
return;
}
RouteGroup* g = new RouteGroup (*_session, "");
g->apply_changes (*_default_properties);
RouteGroupDialog d (g, true);
if (d.do_run ()) {
delete g;
} else {
_session->add_route_group (g);
set_group (g);
}
}
Gtk::Menu *
RouteGroupMenu::menu ()
{
/* Our menu's gobject can be 0 if it was attached as a submenu whose
parent was subsequently deleted.
*/
assert (_menu && _menu->gobj());
return _menu;
}
void
RouteGroupMenu::detach ()
{
if (_menu && _menu->gobj ()) {
Gtkmm2ext::detach_menu (*_menu);
}
}