src/frontends/gtk/GMenubar.C

   1 /**
   2  * \file GMenubar.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Huang Ying
   7  * \author John Spray
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 // Too hard to make concept checks work with this file
  15 #ifdef _GLIBCPP_CONCEPT_CHECKS
  16 #undef _GLIBCPP_CONCEPT_CHECKS
  17 #endif
  18
  19 #include "GMenubar.h"
  20 #include "GView.h"
  21 #include "ghelpers.h"
  22
  23 #include "ToolbarBackend.h" // for getIcon
  24
  25 #include "debug.h"
  26 #include "lyxfunc.h"
  27
  28 using std::string;
  29
  30 namespace lyx {
  31 namespace frontend {
  32
  33 namespace
  34 {
  35
  36 class LyxMenu : public Gtk::Menu {
  37 public:
  38         LyxMenu() { menu_.reset(new ::Menu); }
  39
  40         ::Menu& getBackMenu() { return *menu_.get(); }
  41
  42         void clearBackMenu() { menu_.reset(new ::Menu); }
  43 private:
  44         std::auto_ptr< ::Menu > menu_;
  45 };
  46
  47
  48 Glib::ustring labelTrans(string const & label, string const & shortcut)
  49 {
  50         string labelN = label;
  51         string::size_type i = label.find(shortcut);
  52         if (i == string::npos)
  53                 return Glib::locale_to_utf8(label);
  54         labelN.insert(i, "_");
  55         return Glib::locale_to_utf8(labelN);
  56 }
  57
  58
  59 void ClearMenu(Gtk::MenuShell * menu)
  60 {
  61         Gtk::Menu_Helpers::MenuList::iterator m = menu->items().begin();
  62         Gtk::Menu_Helpers::MenuList::iterator end = menu->items().end();
  63         Gtk::Menu * subMenu;
  64         for (; m != end; ++m) {
  65                 if ((subMenu = m->get_submenu()) != 0) {
  66                         ClearMenu(subMenu);
  67                         delete subMenu;
  68                 }
  69         }
  70         menu->items().clear();
  71 }
  72
  73
  74 }
  75
  76
  77 GMenubar::GMenubar(LyXView * lyxView, MenuBackend const & /*menuBackend*/) :
  78         view_(lyxView)
  79 {
  80         GView * gview = static_cast<GView*>(lyxView);
  81         Menu const & menu = menubackend.getMenubar();
  82         Menu::const_iterator i = menu.begin();
  83         Menu::const_iterator end = menu.end();
  84         for (; i != end; ++i) {
  85                 if (i->kind() != MenuItem::Submenu) {
  86                         lyxerr << "ERROR: GMenubar::createMenubar:"
  87                                 " only submenus can appear in a menubar"
  88                                << std::endl;
  89                         continue;
  90                 }
  91                 Gtk::Menu * gmenu = new LyxMenu;
  92                 menubar_.items().push_back(
  93                         Gtk::Menu_Helpers::MenuElem(
  94                                 labelTrans(i->label(), i->shortcut()),
  95                                 *gmenu));
  96                 menubar_.items().back().signal_activate().connect(
  97                         sigc::bind(sigc::mem_fun(*this, &GMenubar::onSubMenuActivate), &(*i),
  98                                    &menubar_.items().back()));
  99                 mainMenuNames_.push_back(i->submenuname());
 100         }
 101         menubar_.show();
 102         gview->getBox(GView::Top).children().push_back(
 103                 Gtk::Box_Helpers::Element(menubar_, Gtk::PACK_SHRINK));
 104 }
 105
 106
 107 GMenubar::~GMenubar()
 108 {
 109         ClearMenu(&menubar_);
 110 }
 111
 112
 113 void GMenubar::update()
 114 {
 115 }
 116
 117
 118 void GMenubar::openByName(string const & name)
 119 {
 120         Glib::ustring uname = Glib::locale_to_utf8(name);
 121         std::vector<Glib::ustring>::iterator it =
 122                 std::find(mainMenuNames_.begin(), mainMenuNames_.end(),
 123                           uname);
 124         if (it != mainMenuNames_.end()) {
 125                 Gtk::MenuItem& mitem = menubar_.items()[it - mainMenuNames_.begin()];
 126                 mitem.select();
 127                 mitem.activate();
 128                 return;
 129         }
 130         lyxerr << "GMenubar::openByName: menu "
 131                << name << " not found" << std::endl;
 132 }
 133
 134
 135 void GMenubar::onSubMenuActivate(MenuItem const * item,
 136                                  Gtk::MenuItem * gitem)
 137 {
 138         Gtk::Menu * gmenu = gitem->get_submenu();
 139         ClearMenu(gmenu);
 140         LyxMenu * lyxmenu = static_cast<LyxMenu*>(gmenu);
 141         lyxmenu->clearBackMenu();
 142         Menu * fmenu = item->submenuname().empty() ?
 143                 item->submenu() :
 144                 &menubackend.getMenu(item->submenuname());
 145
 146         // Choose size for icons on command items
 147         int iconwidth = 16;
 148         int iconheight = 16;
 149         Gtk::IconSize::lookup(Gtk::ICON_SIZE_MENU, iconwidth, iconheight);
 150
 151         menubackend.expand(*fmenu, lyxmenu->getBackMenu(), view_);
 152         Menu::const_iterator i = lyxmenu->getBackMenu().begin();
 153         Menu::const_iterator end = lyxmenu->getBackMenu().end();
 154         Gtk::Menu * gmenu_new;
 155         for (; i != end; ++i) {
 156                 switch (i->kind()) {
 157                 case MenuItem::Submenu:
 158                         gmenu_new = new LyxMenu;
 159                         gmenu->items().push_back(
 160                                 Gtk::Menu_Helpers::MenuElem(
 161                                         labelTrans(i->label(), i->shortcut()),
 162                                         *gmenu_new));
 163                         gmenu->items().back().signal_activate().connect(
 164                                 sigc::bind(sigc::mem_fun(*this, &GMenubar::onSubMenuActivate),
 165                                            &(*i),
 166                                            &gmenu->items().back()));
 167                         if (!i->status().enabled())
 168                                 gmenu->items().back().set_sensitive(false);
 169                         break;
 170                 case MenuItem::Command:
 171                 {
 172                         FuncStatus const flag = i->status();
 173                         bool on = flag.onoff(true);
 174                         bool off = flag.onoff(false);
 175
 176                         if (on || off) {
 177                                 gmenu->items().push_back(
 178                                         Gtk::Menu_Helpers::CheckMenuElem(
 179                                                 labelTrans(i->label(),
 180                                                            i->shortcut())));
 181                                 Gtk::CheckMenuItem& citem =
 182                                         static_cast<Gtk::CheckMenuItem&>(
 183                                                 gmenu->items().back());
 184                                 citem.set_active(on);
 185                         } else {
 186                                 // Choose an icon from the funcrequest
 187                                 Gtk::BuiltinStockID stockID = getGTKStockIcon(i->func());
 188                                 Gtk::Image * image = NULL;
 189                                 // Prefer stock graphics
 190                                 if (stockID != Gtk::Stock::MISSING_IMAGE) {
 191                                         image = Gtk::manage(new Gtk::Image(stockID, Gtk::ICON_SIZE_MENU));
 192                                 } else {
 193                                         Glib::ustring xpmName =
 194                                                 Glib::locale_to_utf8(toolbarbackend.getIcon(i->func()));
 195                                         if (xpmName.find("unknown.xpm") == -1) {
 196                                                 // Load icon and shrink it for menu size
 197                                                 Glib::RefPtr<Gdk::Pixbuf> bigicon =
 198                                                         Gdk::Pixbuf::create_from_file(xpmName);
 199                                                 Glib::RefPtr<Gdk::Pixbuf> smallicon =
 200                                                         bigicon->scale_simple(iconwidth,iconheight,Gdk::INTERP_TILES);
 201                                                 image = Gtk::manage(new Gtk::Image(smallicon));
 202                                         }
 203                                 }
 204
 205                                 Gtk::ImageMenuItem * item = Gtk::manage(new Gtk::ImageMenuItem);
 206                                 if (image)
 207                                         item->set_image(*image);
 208
 209                                 // This hbox is necessary because add_accel_label is protected,
 210                                 // and even if you subclass Gtk::MenuItem then add_accel_label
 211                                 // doesn't do what you'd expect.
 212                                 Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox);
 213                                 Gtk::Label * label1 = Gtk::manage(new Gtk::Label(
 214                                         labelTrans(i->label(), i->shortcut()), true));
 215                                 Gtk::Label * label2 = Gtk::manage(new Gtk::Label(
 216                                         "   " + i->binding(), false));
 217                                 hbox->pack_start(*label1, false, false, 0);
 218                                 hbox->pack_end(*label2, false, false, 0);
 219                                 item->add(*hbox);
 220
 221                                 gmenu->append(*item);
 222                                 item->show_all();
 223                         }
 224                         Gtk::MenuItem & item = gmenu->items().back();
 225                         item.signal_activate().connect(
 226                                 sigc::bind(sigc::mem_fun(*this, &GMenubar::onCommandActivate),
 227                                            &(*i), &item));
 228                         if (!flag.enabled())
 229                                 item.set_sensitive(false);
 230                         break;
 231                 }
 232                 case MenuItem::Separator:
 233                         gmenu->items().push_back(
 234                                 Gtk::Menu_Helpers::SeparatorElem());
 235                         break;
 236                 default:
 237                         lyxerr << "GMenubar::create_submenu: "
 238                                 "this should not happen" << std::endl;
 239                         break;
 240                 }
 241         }
 242 }
 243
 244
 245 void GMenubar::onCommandActivate(MenuItem const * item,
 246                                        Gtk::MenuItem * /*gitem*/)
 247 {
 248         view_->getLyXFunc().dispatch(item->func());
 249 }
 250
 251 } // namespace frontend
 252 } // namespace lyx