gtk2_ardour/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
  25 #include <gtk/gtkaccelmap.h>
  26 #include <gtk/gtkuimanager.h>
  27 #include <gtk/gtkactiongroup.h>
  28
  29 #include <gtkmm/accelmap.h>
  30 #include <gtkmm/uimanager.h>
  31
  32 #include <pbd/error.h>
  33
  34 #include <ardour/ardour.h>
  35
  36 #include "actions.h"
  37 #include "opts.h"
  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 ARDOUR;
  46
  47 vector<RefPtr<Gtk::Action> > ActionManager::session_sensitive_actions;
  48 vector<RefPtr<Gtk::Action> > ActionManager::region_list_selection_sensitive_actions;
  49 vector<RefPtr<Gtk::Action> > ActionManager::plugin_selection_sensitive_actions;
  50 vector<RefPtr<Gtk::Action> > ActionManager::region_selection_sensitive_actions;
  51 vector<RefPtr<Gtk::Action> > ActionManager::track_selection_sensitive_actions;
  52 vector<RefPtr<Gtk::Action> > ActionManager::point_selection_sensitive_actions;
  53 vector<RefPtr<Gtk::Action> > ActionManager::time_selection_sensitive_actions;
  54 vector<RefPtr<Gtk::Action> > ActionManager::line_selection_sensitive_actions;
  55 vector<RefPtr<Gtk::Action> > ActionManager::playlist_selection_sensitive_actions;
  56 vector<RefPtr<Gtk::Action> > ActionManager::mouse_edit_point_requires_canvas_actions;
  57
  58 vector<RefPtr<Gtk::Action> > ActionManager::range_sensitive_actions;
  59 vector<RefPtr<Gtk::Action> > ActionManager::jack_sensitive_actions;
  60 vector<RefPtr<Gtk::Action> > ActionManager::jack_opposite_sensitive_actions;
  61 vector<RefPtr<Gtk::Action> > ActionManager::transport_sensitive_actions;
  62 vector<RefPtr<Gtk::Action> > ActionManager::edit_point_in_region_sensitive_actions;
  63
  64 RefPtr<UIManager> ActionManager::ui_manager;
  65 string ActionManager::unbound_string = "--";
  66
  67 void
  68 ActionManager::init ()
  69 {
  70         ui_manager = UIManager::create ();
  71
  72         std::string ui_file = ARDOUR::find_config_file (ARDOUR_COMMAND_LINE::menus_file);
  73
  74         bool loaded = false;
  75
  76         try {
  77                 ui_manager->add_ui_from_file (ui_file);
  78                 loaded = true;
  79         } catch (Glib::MarkupError& err) {
  80                 error << string_compose (_("badly formatted UI definition file: %1"), err.what()) << endmsg;
  81                 cerr << string_compose (_("badly formatted UI definition file: %1"), err.what()) << endl;
  82         } catch (...) {
  83                 error << _("Ardour menu definition file not found") << endmsg;
  84         }
  85
  86         if (!loaded) {
  87                 error << _("ardour will not work without a valid ardour.menus file") << endmsg;
  88                 exit(1);
  89         }
  90 }
  91
  92 RefPtr<Action>
  93 ActionManager::register_action (RefPtr<ActionGroup> group, const char * name, const char * label, slot<void> sl)
  94 {
  95         RefPtr<Action> act;
  96
  97         act = Action::create (name, label);
  98         group->add (act, sl);
  99
 100         return act;
 101 }
 102
 103 RefPtr<Action>
 104 ActionManager::register_action (RefPtr<ActionGroup> group, const char * name, const char * label)
 105 {
 106         RefPtr<Action> act;
 107
 108         act = Action::create (name, label);
 109         group->add (act);
 110
 111         return act;
 112 }
 113
 114
 115 RefPtr<Action>
 116 ActionManager::register_radio_action (RefPtr<ActionGroup> group, RadioAction::Group& rgroup, const char * name, const char * label, slot<void> sl)
 117 {
 118         RefPtr<Action> act;
 119
 120         act = RadioAction::create (rgroup, name, label);
 121         group->add (act, sl);
 122
 123         return act;
 124 }
 125
 126 RefPtr<Action>
 127 ActionManager::register_toggle_action (RefPtr<ActionGroup> group, const char * name, const char * label, slot<void> sl)
 128 {
 129         RefPtr<Action> act;
 130
 131         act = ToggleAction::create (name, label);
 132         group->add (act, sl);
 133
 134         return act;
 135 }
 136
 137 bool
 138 ActionManager::lookup_entry (const ustring accel_path, Gtk::AccelKey& key)
 139 {
 140         GtkAccelKey gkey;
 141         bool known = gtk_accel_map_lookup_entry (accel_path.c_str(), &gkey);
 142
 143         if (known) {
 144                 key = AccelKey (gkey.accel_key, Gdk::ModifierType (gkey.accel_mods));
 145         } else {
 146                 key = AccelKey (GDK_VoidSymbol, Gdk::ModifierType (0));
 147         }
 148
 149         return known;
 150 }
 151
 152 struct SortActionsByLabel {
 153     bool operator() (Glib::RefPtr<Gtk::Action> a, Glib::RefPtr<Gtk::Action> b) {
 154             ustring astr = a->get_accel_path();
 155             ustring bstr = b->get_accel_path();
 156             return astr < bstr;
 157     }
 158 };
 159
 160 void
 161 ActionManager::get_all_actions (vector<string>& groups, vector<string>& names, vector<AccelKey>& bindings)
 162 {
 163         /* the C++ API for functions used here appears to be broken in
 164            gtkmm2.6, so we fall back to the C level.
 165         */
 166
 167         GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
 168         GList* node;
 169         GList* acts;
 170
 171         for (node = list; node; node = g_list_next (node)) {
 172
 173                 GtkActionGroup* group = (GtkActionGroup*) node->data;
 174
 175                 /* first pass: collect them all */
 176
 177                 typedef std::list<Glib::RefPtr<Gtk::Action> > action_list;
 178                 action_list the_acts;
 179
 180                 for (acts = gtk_action_group_list_actions (group); acts; acts = g_list_next (acts)) {
 181                         GtkAction* action = (GtkAction*) acts->data;
 182                         the_acts.push_back (Glib::wrap (action, true));
 183                 }
 184
 185                 /* now sort by label */
 186
 187                 SortActionsByLabel cmp;
 188                 the_acts.sort (cmp);
 189
 190                 for (action_list::iterator a = the_acts.begin(); a != the_acts.end(); ++a) {
 191
 192                         string accel_path = (*a)->get_accel_path ();
 193
 194                         groups.push_back (gtk_action_group_get_name(group));
 195                         names.push_back (accel_path.substr (accel_path.find_last_of ('/') + 1));
 196
 197                         AccelKey key;
 198                         lookup_entry (accel_path, key);
 199                         bindings.push_back (AccelKey (key.get_key(), Gdk::ModifierType (key.get_mod())));
 200                 }
 201         }
 202 }
 203
 204 void
 205 ActionManager::get_all_actions (vector<string>& names, vector<string>& paths, vector<string>& keys, vector<AccelKey>& bindings)
 206 {
 207         /* the C++ API for functions used here appears to be broken in
 208            gtkmm2.6, so we fall back to the C level.
 209         */
 210
 211         GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
 212         GList* node;
 213         GList* acts;
 214
 215         for (node = list; node; node = g_list_next (node)) {
 216
 217                 GtkActionGroup* group = (GtkActionGroup*) node->data;
 218
 219                 /* first pass: collect them all */
 220
 221                 typedef std::list<Glib::RefPtr<Gtk::Action> > action_list;
 222                 action_list the_acts;
 223
 224                 for (acts = gtk_action_group_list_actions (group); acts; acts = g_list_next (acts)) {
 225                         GtkAction* action = (GtkAction*) acts->data;
 226                         the_acts.push_back (Glib::wrap (action, true));
 227                 }
 228
 229                 /* now sort by label */
 230
 231                 SortActionsByLabel cmp;
 232                 the_acts.sort (cmp);
 233
 234                 for (action_list::iterator a = the_acts.begin(); a != the_acts.end(); ++a) {
 235
 236                         string accel_path = (*a)->get_accel_path ();
 237                         ustring label = (*a)->property_label();
 238
 239                         names.push_back (label);
 240                         paths.push_back (accel_path);
 241
 242                         AccelKey key;
 243                         bool known = lookup_entry (accel_path, key);
 244
 245                         if (known) {
 246                                 keys.push_back (ui_manager->get_accel_group()->name (key.get_key(), Gdk::ModifierType (key.get_mod())));
 247                         } else {
 248                                 keys.push_back (unbound_string);
 249                         }
 250
 251                         bindings.push_back (AccelKey (key.get_key(), Gdk::ModifierType (key.get_mod())));
 252                 }
 253         }
 254 }
 255
 256
 257 void
 258 ActionManager::add_action_group (RefPtr<ActionGroup> grp)
 259 {
 260         ui_manager->insert_action_group (grp);
 261 }
 262
 263 Widget*
 264 ActionManager::get_widget (const char * name)
 265 {
 266         return ui_manager->get_widget (name);
 267 }
 268
 269 RefPtr<Action>
 270 ActionManager::get_action (const char* path)
 271 {
 272         GtkAction* _act;
 273         RefPtr<Action> act;
 274
 275         if ((_act = gtk_ui_manager_get_action (ui_manager->gobj(), path)) != 0) {
 276                 return Glib::wrap (_act, true);
 277         }
 278
 279         return act;
 280 }
 281
 282 RefPtr<Action>
 283 ActionManager::get_action (const char* group_name, const char* action_name)
 284 {
 285         /* the C++ API for functions used here appears to be broken in
 286            gtkmm2.6, so we fall back to the C level.
 287         */
 288
 289         GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
 290         GList* node;
 291         RefPtr<Action> act;
 292
 293         for (node = list; node; node = g_list_next (node)) {
 294
 295                 GtkActionGroup* _ag = (GtkActionGroup*) node->data;
 296
 297                 if (strcmp (group_name,  gtk_action_group_get_name (_ag)) == 0) {
 298
 299                         GtkAction* _act;
 300
 301                         if ((_act = gtk_action_group_get_action (_ag, action_name)) != 0) {
 302                                 act = Glib::wrap (_act, true);
 303                                 break;
 304                         }
 305                 }
 306         }
 307
 308         return act;
 309 }
 310
 311 void
 312 ActionManager::set_sensitive (vector<RefPtr<Action> >& actions, bool state)
 313 {
 314         for (vector<RefPtr<Action> >::iterator i = actions.begin(); i != actions.end(); ++i) {
 315                 (*i)->set_sensitive (state);
 316         }
 317 }
 318
 319 void
 320 ActionManager::uncheck_toggleaction (const char * name)
 321 {
 322         char *last_slash = strrchr (name, '/');
 323
 324         if (last_slash == 0) {
 325                 fatal << string_compose (_("programmer error: %1 %2"), X_("illegal toggle action name"), name) << endmsg;
 326                 /*NOTREACHED*/
 327                 return;
 328         }
 329
 330         /* 10 = strlen ("<Actions>/") */
 331         size_t len = last_slash - (name + 10);
 332
 333         char* group_name = new char[len+1];
 334         memcpy (group_name, name + 10, len);
 335         group_name[len] = '\0';
 336
 337         char* action_name = last_slash + 1;
 338
 339         RefPtr<Action> act = get_action (group_name, action_name);
 340         if (act) {
 341                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
 342                 tact->set_active (false);
 343         } else {
 344                 error << string_compose (_("Unknown action name: %1"),  name) << endmsg;
 345         }
 346
 347         delete [] group_name;
 348 }
 349
 350 /** Examine the state of a Configuration setting and a toggle action, and toggle the Configuration
 351  * setting if its state doesn't match the toggle action.
 352  * @param group Action group.
 353  * @param action Action name.
 354  * @param Method to set the state of the Configuration setting.
 355  * @param Method to get the state of the Configuration setting.
 356  */
 357 void
 358 ActionManager::toggle_config_state (const char* group, const char* action, bool (Configuration::*set)(bool), bool (Configuration::*get)(void) const)
 359 {
 360         Glib::RefPtr<Action> act = ActionManager::get_action (group, action);
 361         if (act) {
 362                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
 363
 364                 if (tact) {
 365                         bool x = (Config->*get)();
 366
 367                         if (x != tact->get_active()) {
 368                                 (Config->*set) (!x);
 369                         }
 370                 }
 371         }
 372 }
 373
 374 void
 375 ActionManager::toggle_config_state (const char* group, const char* action, sigc::slot<void> theSlot)
 376 {
 377         Glib::RefPtr<Action> act = ActionManager::get_action (group, action);
 378         if (act) {
 379                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
 380                 if (tact->get_active()) {
 381                         theSlot ();
 382                 }
 383         }
 384 }
 385
 386
 387 /** Set the state of a ToggleAction using a particular Configuration get() method
 388  * @param group Action group.
 389  * @param action Action name.
 390  * @param get Method to obtain the state that the ToggleAction should have.
 391  */
 392 void
 393 ActionManager::map_some_state (const char* group, const char* action, bool (Configuration::*get)() const)
 394 {
 395         Glib::RefPtr<Action> act = ActionManager::get_action (group, action);
 396         if (act) {
 397                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
 398
 399                 if (tact) {
 400
 401                         bool x = (Config->*get)();
 402
 403                         if (tact->get_active() != x) {
 404                                 tact->set_active (x);
 405                         }
 406                 } else {
 407                         cerr << group << ':' << action << " is not a toggle\n";
 408                 }
 409         } else {
 410                 cerr << group << ':' << action << " not an action\n";
 411         }
 412 }