src/frontends/qt2/QLPopupMenu.C

   1 /**
   2  * \file QLPopupMenu.C
   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 namespace lyx::support;
  27
  28 using std::endl;
  29 using std::pair;
  30 using std::make_pair;
  31
  32 namespace {
  33
  34 string const getLabel(MenuItem const & mi)
  35 {
  36         string const shortcut = mi.shortcut();
  37         string label = subst(mi.label(), "&", "&&");
  38
  39         if (shortcut.empty())
  40                 return label;
  41
  42         string::size_type pos = label.find(shortcut);
  43         if (pos == string::npos)
  44                 return label;
  45         label.insert(pos, 1, '&');
  46
  47         if (mi.kind() == MenuItem::Command) {
  48                 string const binding(mi.binding());
  49                 if (!binding.empty()) {
  50                         label += '\t' + binding;
  51                 }
  52         }
  53
  54         return label;
  55 }
  56
  57 } // namespace anon
  58
  59
  60 pair<int, QLPopupMenu *>
  61 createMenu(QMenuData * parent, MenuItem const * item, Menubar::Pimpl * owner,
  62            bool is_toplevel)
  63 {
  64         // FIXME: leaks ??
  65         QLPopupMenu * pm = new QLPopupMenu(owner, item->submenuname(), is_toplevel);
  66         int id = parent->insertItem(toqstr(getLabel(*item)), pm);
  67         return make_pair(id, pm);
  68 }
  69
  70
  71 QLPopupMenu::QLPopupMenu(Menubar::Pimpl * owner,
  72                          string const & name, bool toplevel)
  73         : owner_(owner), name_(name)
  74 {
  75         if (toplevel)
  76                 connect(this, SIGNAL(aboutToShow()), this, SLOT(showing()));
  77         connect(this, SIGNAL(activated(int)),
  78                 owner_->view(), SLOT(activated(int)));
  79 }
  80
  81
  82 void QLPopupMenu::populate(Menu * menu)
  83 {
  84         Menu::const_iterator m = menu->begin();
  85         Menu::const_iterator end = menu->end();
  86         for (; m != end; ++m) {
  87                 if (m->kind() == MenuItem::Separator) {
  88                         insertSeparator();
  89                 } else if (m->kind() == MenuItem::Submenu) {
  90                         pair<int, QLPopupMenu *> res = createMenu(this, &(*m), owner_);
  91                         setItemEnabled(res.first,
  92                                        !m->status().disabled());
  93                         res.second->populate(m->submenu());
  94                 } else {
  95                         FuncStatus const status = m->status();
  96
  97                         insertItem(toqstr(getLabel(*m)), m->action());
  98                         setItemEnabled(m->action(), !status.disabled());
  99                         setItemChecked(m->action(), status.onoff(true));
 100                 }
 101         }
 102 }
 103
 104
 105 void QLPopupMenu::showing()
 106 {
 107         clear();
 108         Menu tomenu;
 109         Menu const frommenu = owner_->backend().getMenu(name_);
 110         owner_->backend().expand(frommenu, tomenu, owner_->view());
 111         populate(&tomenu);
 112 }