src/frontends/qt2/QLPopupMenu.C

   1 /**
   2  * \file QLPopupMenu.h
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13
  14 #include "support/lstrings.h"
  15 #include "MenuBackend.h"
  16 #include "lyxfunc.h"
  17 #include "debug.h"
  18
  19 #include "QtView.h"
  20
  21 #include "QLPopupMenu.h"
  22 #include "qt_helpers.h"
  23
  24 #include <boost/scoped_ptr.hpp>
  25
  26 using std::endl;
  27 using std::pair;
  28 using std::make_pair;
  29
  30 namespace {
  31
  32 string const getLabel(MenuItem const & mi)
  33 {
  34         string const shortcut = mi.shortcut();
  35         string label = subst(mi.label(), "&", "&&");
  36
  37         if (shortcut.empty())
  38                 return label;
  39
  40         string::size_type pos = label.find(shortcut);
  41         if (pos == string::npos)
  42                 return label;
  43         label.insert(pos, 1, '&');
  44
  45         if (mi.kind() == MenuItem::Command) {
  46                 string const binding(mi.binding());
  47                 if (!binding.empty()) {
  48                         label += '\t' + binding;
  49                 }
  50         }
  51
  52         return label;
  53 }
  54
  55 } // namespace anon
  56
  57
  58 pair<int, QLPopupMenu *>
  59 createMenu(QMenuData * parent, MenuItem const * item, Menubar::Pimpl * owner,
  60            bool is_toplevel)
  61 {
  62         // FIXME: leaks ??
  63         QLPopupMenu * pm = new QLPopupMenu(owner, item->submenuname(), is_toplevel);
  64         int id = parent->insertItem(toqstr(getLabel(*item)), pm);
  65         return make_pair(id, pm);
  66 }
  67
  68
  69 QLPopupMenu::QLPopupMenu(Menubar::Pimpl * owner,
  70                          string const & name, bool toplevel)
  71         : owner_(owner), name_(name)
  72 {
  73         if (toplevel)
  74                 connect(this, SIGNAL(aboutToShow()), this, SLOT(showing()));
  75         connect(this, SIGNAL(activated(int)),
  76                 owner_->view(), SLOT(activated(int)));
  77 }
  78
  79
  80 void QLPopupMenu::populate(Menu * menu)
  81 {
  82         Menu::const_iterator m = menu->begin();
  83         Menu::const_iterator end = menu->end();
  84         for (; m != end; ++m) {
  85                 if (m->kind() == MenuItem::Separator) {
  86                         insertSeparator();
  87                 } else if (m->kind() == MenuItem::Submenu) {
  88                         pair<int, QLPopupMenu *> res = createMenu(this, &(*m), owner_);
  89                         setItemEnabled(res.first,
  90                                        !m->status().disabled());
  91                         res.second->populate(m->submenu());
  92                 } else {
  93                         FuncStatus const status = m->status();
  94
  95                         insertItem(toqstr(getLabel(*m)), m->action());
  96                         setItemEnabled(m->action(), !status.disabled());
  97                         setItemChecked(m->action(), status.onoff(true));
  98                 }
  99         }
 100 }
 101
 102
 103 void QLPopupMenu::showing()
 104 {
 105         clear();
 106         Menu tomenu;
 107         Menu const frommenu = owner_->backend().getMenu(name_);
 108         owner_->backend().expand(frommenu, tomenu, owner_->view());
 109         populate(&tomenu);
 110 }