libs/gtkmm2ext/actions.cc

   1 /*
   2     Copyright (C) 2005 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstring>
  21 #include <vector>
  22 #include <string>
  23 #include <list>
  24 #include <stdint.h>
  25
  26 #include <gtk/gtkaccelmap.h>
  27 #include <gtk/gtkuimanager.h>
  28 #include <gtk/gtkactiongroup.h>
  29
  30 #include <gtkmm/accelmap.h>
  31 #include <gtkmm/uimanager.h>
  32
  33 #include "pbd/error.h"
  34
  35 #include "gtkmm2ext/actions.h"
  36 #include "gtkmm2ext/utils.h"
  37
  38 #include "i18n.h"
  39
  40 using namespace std;
  41 using namespace Gtk;
  42 using namespace Glib;
  43 using namespace sigc;
  44 using namespace PBD;
  45 using namespace Gtkmm2ext;
  46
  47 RefPtr<UIManager> ActionManager::ui_manager;
  48 string ActionManager::unbound_string = "--";
  49
  50
  51 RefPtr<Action>
  52 ActionManager::register_action (RefPtr<ActionGroup> group, const char * name, const char * label, slot<void> sl)
  53 {
  54         RefPtr<Action> act;
  55
  56         act = Action::create (name, label);
  57         group->add (act, sl);
  58
  59         return act;
  60 }
  61
  62 RefPtr<Action>
  63 ActionManager::register_action (RefPtr<ActionGroup> group, const char * name, const char * label)
  64 {
  65         RefPtr<Action> act;
  66
  67         act = Action::create (name, label);
  68         group->add (act);
  69
  70         return act;
  71 }
  72
  73
  74 RefPtr<Action>
  75 ActionManager::register_radio_action (RefPtr<ActionGroup> group, RadioAction::Group& rgroup, const char * name, const char * label, slot<void> sl)
  76 {
  77         RefPtr<Action> act;
  78
  79         act = RadioAction::create (rgroup, name, label);
  80         group->add (act, sl);
  81
  82         return act;
  83 }
  84
  85 RefPtr<Action>
  86 ActionManager::register_radio_action (
  87         RefPtr<ActionGroup> group, RadioAction::Group& rgroup, string const & name, string const & label, string const & tooltip, slot<void> sl
  88         )
  89 {
  90         RefPtr<Action> act;
  91
  92         act = RadioAction::create (rgroup, name, label, tooltip);
  93         group->add (act, sl);
  94
  95         return act;
  96 }
  97
  98 RefPtr<Action>
  99 ActionManager::register_toggle_action (RefPtr<ActionGroup> group, const char * name, const char * label, slot<void> sl)
 100 {
 101         RefPtr<Action> act;
 102
 103         act = ToggleAction::create (name, label);
 104         group->add (act, sl);
 105
 106         return act;
 107 }
 108
 109 RefPtr<Action>
 110 ActionManager::register_toggle_action (RefPtr<ActionGroup> group, string const & name, string const & label, string const & tooltip, slot<void> sl)
 111 {
 112         RefPtr<Action> act;
 113
 114         act = ToggleAction::create (name, label, tooltip);
 115         group->add (act, sl);
 116
 117         return act;
 118 }
 119
 120 bool
 121 ActionManager::lookup_entry (const ustring accel_path, Gtk::AccelKey& key)
 122 {
 123         GtkAccelKey gkey;
 124         bool known = gtk_accel_map_lookup_entry (accel_path.c_str(), &gkey);
 125
 126         if (known) {
 127                 key = AccelKey (gkey.accel_key, Gdk::ModifierType (gkey.accel_mods));
 128         } else {
 129                 key = AccelKey (GDK_VoidSymbol, Gdk::ModifierType (0));
 130         }
 131
 132         return known;
 133 }
 134
 135 struct SortActionsByLabel {
 136     bool operator() (Glib::RefPtr<Gtk::Action> a, Glib::RefPtr<Gtk::Action> b) {
 137             ustring astr = a->get_accel_path();
 138             ustring bstr = b->get_accel_path();
 139             return astr < bstr;
 140     }
 141 };
 142
 143 void
 144 ActionManager::get_all_actions (vector<string>& groups, vector<string>& names, vector<string>& tooltips, vector<AccelKey>& bindings)
 145 {
 146         /* the C++ API for functions used here appears to be broken in
 147            gtkmm2.6, so we fall back to the C level.
 148         */
 149
 150         GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
 151         GList* node;
 152         GList* acts;
 153
 154         for (node = list; node; node = g_list_next (node)) {
 155
 156                 GtkActionGroup* group = (GtkActionGroup*) node->data;
 157
 158                 /* first pass: collect them all */
 159
 160                 typedef std::list<Glib::RefPtr<Gtk::Action> > action_list;
 161                 action_list the_acts;
 162
 163                 for (acts = gtk_action_group_list_actions (group); acts; acts = g_list_next (acts)) {
 164                         GtkAction* action = (GtkAction*) acts->data;
 165                         the_acts.push_back (Glib::wrap (action, true));
 166                 }
 167
 168                 /* now sort by label */
 169
 170                 SortActionsByLabel cmp;
 171                 the_acts.sort (cmp);
 172
 173                 for (action_list::iterator a = the_acts.begin(); a != the_acts.end(); ++a) {
 174
 175                         string accel_path = (*a)->get_accel_path ();
 176
 177                         groups.push_back (gtk_action_group_get_name(group));
 178                         names.push_back (accel_path.substr (accel_path.find_last_of ('/') + 1));
 179                         tooltips.push_back ((*a)->get_tooltip ());
 180
 181                         AccelKey key;
 182                         lookup_entry (accel_path, key);
 183                         bindings.push_back (AccelKey (key.get_key(), Gdk::ModifierType (key.get_mod())));
 184                 }
 185         }
 186 }
 187
 188 void
 189 ActionManager::get_all_actions (vector<string>& names, vector<string>& paths, vector<string>& tooltips, vector<string>& keys, vector<AccelKey>& bindings)
 190 {
 191         /* the C++ API for functions used here appears to be broken in
 192            gtkmm2.6, so we fall back to the C level.
 193         */
 194
 195         GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
 196         GList* node;
 197         GList* acts;
 198
 199         for (node = list; node; node = g_list_next (node)) {
 200
 201                 GtkActionGroup* group = (GtkActionGroup*) node->data;
 202
 203                 /* first pass: collect them all */
 204
 205                 typedef std::list<Glib::RefPtr<Gtk::Action> > action_list;
 206                 action_list the_acts;
 207
 208                 for (acts = gtk_action_group_list_actions (group); acts; acts = g_list_next (acts)) {
 209                         GtkAction* action = (GtkAction*) acts->data;
 210                         the_acts.push_back (Glib::wrap (action, true));
 211                 }
 212
 213                 /* now sort by label */
 214
 215                 SortActionsByLabel cmp;
 216                 the_acts.sort (cmp);
 217
 218                 for (action_list::iterator a = the_acts.begin(); a != the_acts.end(); ++a) {
 219
 220                         ustring const label = (*a)->property_label ();
 221                         string const accel_path = (*a)->get_accel_path ();
 222
 223                         names.push_back (label);
 224                         paths.push_back (accel_path);
 225                         tooltips.push_back ((*a)->get_tooltip ());
 226
 227                         AccelKey key;
 228                         keys.push_back (get_key_representation (accel_path, key));
 229                         bindings.push_back (AccelKey (key.get_key(), Gdk::ModifierType (key.get_mod())));
 230                 }
 231         }
 232 }
 233
 234 void
 235 ActionManager::add_action_group (RefPtr<ActionGroup> grp)
 236 {
 237         ui_manager->insert_action_group (grp);
 238 }
 239
 240 Widget*
 241 ActionManager::get_widget (const char * name)
 242 {
 243         return ui_manager->get_widget (name);
 244 }
 245
 246 RefPtr<Action>
 247 ActionManager::get_action (const char* path)
 248 {
 249         GtkAction* _act;
 250         RefPtr<Action> act;
 251
 252         if ((_act = gtk_ui_manager_get_action (ui_manager->gobj(), path)) != 0) {
 253                 return Glib::wrap (_act, true);
 254         }
 255
 256         return act;
 257 }
 258
 259 RefPtr<Action>
 260 ActionManager::get_action (const char* group_name, const char* action_name)
 261 {
 262         /* the C++ API for functions used here appears to be broken in
 263            gtkmm2.6, so we fall back to the C level.
 264         */
 265
 266         if (ui_manager == 0) {
 267                 return RefPtr<Action> ();
 268         }
 269
 270         GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
 271         GList* node;
 272         RefPtr<Action> act;
 273
 274         for (node = list; node; node = g_list_next (node)) {
 275
 276                 GtkActionGroup* _ag = (GtkActionGroup*) node->data;
 277
 278                 if (strcmp (group_name,  gtk_action_group_get_name (_ag)) == 0) {
 279
 280                         GtkAction* _act;
 281
 282                         if ((_act = gtk_action_group_get_action (_ag, action_name)) != 0) {
 283                                 act = Glib::wrap (_act, true);
 284                                 break;
 285                         }
 286                 }
 287         }
 288
 289         return act;
 290 }
 291
 292 void
 293 ActionManager::set_sensitive (vector<RefPtr<Action> >& actions, bool state)
 294 {
 295         for (vector<RefPtr<Action> >::iterator i = actions.begin(); i != actions.end(); ++i) {
 296                 (*i)->set_sensitive (state);
 297         }
 298 }
 299
 300 void
 301 ActionManager::uncheck_toggleaction (string n)
 302 {
 303         char const * name = n.c_str ();
 304
 305         const char *last_slash = strrchr (name, '/');
 306
 307         if (last_slash == 0) {
 308                 fatal << string_compose ("programmer error: %1 %2", "illegal toggle action name", name) << endmsg;
 309                 /*NOTREACHED*/
 310                 return;
 311         }
 312
 313         /* 10 = strlen ("<Actions>/") */
 314         size_t len = last_slash - (name + 10);
 315
 316         char* group_name = new char[len+1];
 317         memcpy (group_name, name + 10, len);
 318         group_name[len] = '\0';
 319
 320         const char* action_name = last_slash + 1;
 321
 322         RefPtr<Action> act = get_action (group_name, action_name);
 323         if (act) {
 324                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
 325                 tact->set_active (false);
 326         } else {
 327                 error << string_compose (_("Unknown action name: %1"),  name) << endmsg;
 328         }
 329
 330         delete [] group_name;
 331 }
 332
 333 string
 334 ActionManager::get_key_representation (const string& accel_path, AccelKey& key)
 335 {
 336         bool known = lookup_entry (accel_path, key);
 337
 338         if (known) {
 339                 uint32_t k = possibly_translate_legal_accelerator_to_real_key (key.get_key());
 340                 key = AccelKey (k, Gdk::ModifierType (key.get_mod()));
 341                 return ui_manager->get_accel_group()->name (key.get_key(), Gdk::ModifierType (key.get_mod()));
 342         }
 343
 344         return unbound_string;
 345 }