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 "QLMenubar.h"
  22 #include "QLPopupMenu.h"
  23 #include "qt_helpers.h"
  24
  25 #include <boost/scoped_ptr.hpp>
  26
  27 using namespace lyx::support;
  28
  29 using std::endl;
  30 using std::pair;
  31 using std::make_pair;
  32
  33 namespace {
  34
  35 string const getLabel(MenuItem const & mi)
  36 {
  37         string const shortcut = mi.shortcut();
  38         string label = subst(mi.label(), "&", "&&");
  39
  40         if (shortcut.empty())
  41                 return label;
  42
  43         string::size_type pos = label.find(shortcut);
  44         if (pos == string::npos)
  45                 return label;
  46         label.insert(pos, 1, '&');
  47
  48         if (mi.kind() == MenuItem::Command) {
  49                 string const binding(mi.binding());
  50                 if (!binding.empty()) {
  51                         label += '\t' + binding;
  52                 }
  53         }
  54
  55         return label;
  56 }
  57
  58 } // namespace anon
  59
  60
  61 pair<int, QLPopupMenu *>
  62 createMenu(QMenuData * parent, MenuItem const * item, QLMenubar * owner,
  63            bool is_toplevel)
  64 {
  65         // FIXME: leaks ??
  66         QLPopupMenu * pm = new QLPopupMenu(owner, item->submenuname(), is_toplevel);
  67         int id = parent->insertItem(toqstr(getLabel(*item)), pm);
  68         return make_pair(id, pm);
  69 }
  70
  71
  72 QLPopupMenu::QLPopupMenu(QLMenubar * owner,
  73                          string const & name, bool toplevel)
  74         : owner_(owner), name_(name)
  75 {
  76         if (toplevel)
  77                 connect(this, SIGNAL(aboutToShow()), this, SLOT(showing()));
  78         connect(this, SIGNAL(activated(int)),
  79                 owner_->view(), SLOT(activated(int)));
  80 }
  81
  82
  83 void QLPopupMenu::populate(Menu * menu)
  84 {
  85         Menu::const_iterator m = menu->begin();
  86         Menu::const_iterator end = menu->end();
  87         for (; m != end; ++m) {
  88                 if (m->kind() == MenuItem::Separator) {
  89                         insertSeparator();
  90                 } else if (m->kind() == MenuItem::Submenu) {
  91                         pair<int, QLPopupMenu *> res = createMenu(this, &(*m), owner_);
  92                         setItemEnabled(res.first,
  93                                        !m->status().disabled());
  94                         res.second->populate(m->submenu());
  95                 } else {
  96                         FuncStatus const status = m->status();
  97
  98                         insertItem(toqstr(getLabel(*m)), m->action());
  99                         setItemEnabled(m->action(), !status.disabled());
 100                         setItemChecked(m->action(), status.onoff(true));
 101                 }
 102         }
 103 }
 104
 105
 106 void QLPopupMenu::showing()
 107 {
 108         clear();
 109         Menu tomenu;
 110         Menu const frommenu = owner_->backend().getMenu(name_);
 111         owner_->backend().expand(frommenu, tomenu, owner_->view());
 112         populate(&tomenu);
 113 }