lyx_mirror/src/frontends/qt2/QLPopupMenu.C

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/**
* \file QLPopupMenu.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
*
* Full author contact details are available in file CREDITS
*/
#include <config.h>
#include "support/lstrings.h"
#include "MenuBackend.h"
#include "lyxfunc.h"
#include "debug.h"
#include "QtView.h"
#include "QLPopupMenu.h"
#include "qt_helpers.h"
#include <boost/scoped_ptr.hpp>
using std::endl;
using std::pair;
using std::make_pair;
namespace {
string const getLabel(MenuItem const & mi)
{
string const shortcut = mi.shortcut();
string label = subst(mi.label(), "&", "&&");
if (shortcut.empty())
return label;
string::size_type pos = label.find(shortcut);
if (pos == string::npos)
return label;
label.insert(pos, 1, '&');
if (mi.kind() == MenuItem::Command) {
string const binding(mi.binding());
if (!binding.empty()) {
label += '\t' + binding;
}
lyxerr[Debug::GUI] << "Label: " << mi.label()
<< " Shortcut: " << mi.shortcut()
<< " Accel: " << binding << endl;
} else
lyxerr[Debug::GUI] << "Label: " << mi.label()
<< " Shortcut: " << mi.shortcut() << endl;
return label;
}
} // namespace anon
pair<int, QLPopupMenu *>
createMenu(QMenuData * parent, MenuItem const * item, Menubar::Pimpl * owner,
bool is_toplevel)
{
// FIXME: leaks ??
QLPopupMenu * pm = new QLPopupMenu(owner, item->submenuname(), is_toplevel);
int id = parent->insertItem(toqstr(getLabel(*item)), pm);
return make_pair(id, pm);
}
QLPopupMenu::QLPopupMenu(Menubar::Pimpl * owner,
string const & name, bool toplevel)
: owner_(owner), name_(name)
{
if (toplevel)
connect(this, SIGNAL(aboutToShow()), this, SLOT(showing()));
connect(this, SIGNAL(activated(int)),
owner_->view(), SLOT(activated(int)));
}
void QLPopupMenu::populate(Menu * menu)
{
Menu::const_iterator m = menu->begin();
Menu::const_iterator end = menu->end();
for (; m != end; ++m) {
if (m->kind() == MenuItem::Separator) {
insertSeparator();
} else if (m->kind() == MenuItem::Submenu) {
pair<int, QLPopupMenu *> res = createMenu(this, &(*m), owner_);
setItemEnabled(res.first,
!m->status().disabled());
res.second->populate(m->submenu());
} else {
FuncStatus const status = m->status();
insertItem(toqstr(getLabel(*m)), m->action());
setItemEnabled(m->action(), !status.disabled());
setItemChecked(m->action(), status.onoff(true));
}
}
}
void QLPopupMenu::showing()
{
clear();
Menu tomenu;
Menu const frommenu = owner_->backend().getMenu(name_);
owner_->backend().expand(frommenu, tomenu, owner_->view());
populate(&tomenu);
}