libs/gtkmm2ext/bindings.cc

   1 #include <iostream>
   2 #include "pbd/xml++.h"
   3 #include "gtkmm2ext/bindings.h"
   4 #include "gtkmm2ext/keyboard.h"
   5
   6 #include "i18n.h"
   7
   8 using namespace std;
   9 using namespace Glib;
  10 using namespace Gtk;
  11 using namespace Gtkmm2ext;
  12
  13 uint32_t KeyboardKey::_ignored_state = 0;
  14
  15 KeyboardKey::KeyboardKey (uint32_t state, uint32_t keycode)
  16 {
  17         uint32_t ignore = _ignored_state;
  18
  19         if (gdk_keyval_is_upper (keycode) && gdk_keyval_is_lower (keycode)) {
  20                 /* key is not subject to case, so ignore SHIFT
  21                  */
  22                 ignore |= GDK_SHIFT_MASK;
  23         }
  24
  25         _val = (state & ~ignore);
  26         _val <<= 32;
  27         _val |= keycode;
  28 };
  29
  30
  31 string
  32 KeyboardKey::name () const
  33 {
  34         int s = state();
  35
  36         string str;
  37
  38         if (s & Keyboard::PrimaryModifier) {
  39                 str += "Primary";
  40         }
  41         if (s & Keyboard::SecondaryModifier) {
  42                 if (!str.empty()) {
  43                         str += '-';
  44                 }
  45                 str += "Secondary";
  46         }
  47         if (s & Keyboard::TertiaryModifier) {
  48                 if (!str.empty()) {
  49                         str += '-';
  50                 }
  51                 str += "Tertiary";
  52         }
  53         if (s & Keyboard::Level4Modifier) {
  54                 if (!str.empty()) {
  55                         str += '-';
  56                 }
  57                 str += "Level4";
  58         }
  59
  60         if (!str.empty()) {
  61                 str += '-';
  62         }
  63
  64         str += gdk_keyval_name (key());
  65
  66         return str;
  67 }
  68
  69 bool
  70 KeyboardKey::make_key (const string& str, KeyboardKey& k)
  71 {
  72         int s = 0;
  73
  74         if (str.find ("Primary") != string::npos) {
  75                 s |= Keyboard::PrimaryModifier;
  76         }
  77
  78         if (str.find ("Secondary") != string::npos) {
  79                 s |= Keyboard::SecondaryModifier;
  80         }
  81
  82         if (str.find ("Tertiary") != string::npos) {
  83                 s |= Keyboard::TertiaryModifier;
  84         }
  85
  86         if (str.find ("Level4") != string::npos) {
  87                 s |= Keyboard::Level4Modifier;
  88         }
  89
  90         string::size_type lastmod = str.find_last_of ('-');
  91         guint keyval;
  92
  93         if (lastmod == string::npos) {
  94                 keyval = gdk_keyval_from_name (str.c_str());
  95         } else {
  96                 keyval = gdk_keyval_from_name (str.substr (lastmod+1).c_str());
  97         }
  98
  99         if (keyval == GDK_VoidSymbol) {
 100                 return false;
 101         }
 102
 103         k = KeyboardKey (s, keyval);
 104         return true;
 105 }
 106
 107 Bindings::Bindings ()
 108         : action_map (0)
 109 {
 110 }
 111
 112 Bindings::~Bindings()
 113 {
 114 }
 115
 116 void
 117 Bindings::set_action_map (ActionMap& am)
 118 {
 119         action_map = &am;
 120         press_bindings.clear ();
 121         release_bindings.clear ();
 122 }
 123
 124 bool
 125 Bindings::activate (KeyboardKey kb, KeyboardKey::Operation op)
 126 {
 127         KeybindingMap* kbm;
 128
 129         switch (op) {
 130         case KeyboardKey::Press:
 131                 kbm = &press_bindings;
 132                 break;
 133         case KeyboardKey::Release:
 134                 kbm = &release_bindings;
 135                 break;
 136         }
 137
 138         KeybindingMap::iterator k = kbm->find (kb);
 139
 140         if (k == kbm->end()) {
 141                 /* no entry for this key in the state map */
 142                 return false;
 143         }
 144
 145         /* lets do it ... */
 146
 147         k->second->activate ();
 148         return true;
 149 }
 150
 151 void
 152 Bindings::add (KeyboardKey kb, KeyboardKey::Operation op, RefPtr<Action> what)
 153 {
 154         KeybindingMap* kbm;
 155
 156         switch (op) {
 157         case KeyboardKey::Press:
 158                 kbm = &press_bindings;
 159                 break;
 160         case KeyboardKey::Release:
 161                 kbm = &release_bindings;
 162                 break;
 163         }
 164
 165         KeybindingMap::iterator k = kbm->find (kb);
 166
 167         if (k == kbm->end()) {
 168                 pair<KeyboardKey,RefPtr<Action> > newpair (kb, what);
 169                 kbm->insert (newpair);
 170                 cerr << "Bindings added " << kb.key() << " w/ " << kb.state() << endl;
 171         } else {
 172                 k->second = what;
 173         }
 174 }
 175
 176 void
 177 Bindings::remove (KeyboardKey kb, KeyboardKey::Operation op)
 178 {
 179         KeybindingMap* kbm;
 180
 181         switch (op) {
 182         case KeyboardKey::Press:
 183                 kbm = &press_bindings;
 184                 break;
 185         case KeyboardKey::Release:
 186                 kbm = &release_bindings;
 187                 break;
 188         }
 189
 190         KeybindingMap::iterator k = kbm->find (kb);
 191
 192         if (k != kbm->end()) {
 193                 kbm->erase (k);
 194         }
 195 }
 196
 197 bool
 198 Bindings::save (const string& path)
 199 {
 200         XMLTree tree;
 201         XMLNode* root = new XMLNode (X_("Bindings"));
 202         tree.set_root (root);
 203
 204         XMLNode* presses = new XMLNode (X_("Press"));
 205         root->add_child_nocopy (*presses);
 206
 207         for (KeybindingMap::iterator k = press_bindings.begin(); k != press_bindings.end(); ++k) {
 208                 XMLNode* child;
 209                 child = new XMLNode (X_("Binding"));
 210                 child->add_property (X_("key"), k->first.name());
 211                 child->add_property (X_("action"), k->second->get_name());
 212                 presses->add_child_nocopy (*child);
 213         }
 214
 215         XMLNode* releases = new XMLNode (X_("Release"));
 216         root->add_child_nocopy (*releases);
 217
 218         for (KeybindingMap::iterator k = release_bindings.begin(); k != release_bindings.end(); ++k) {
 219                 XMLNode* child;
 220                 child = new XMLNode (X_("Binding"));
 221                 child->add_property (X_("key"), k->first.name());
 222                 child->add_property (X_("action"), k->second->get_name());
 223                 releases->add_child_nocopy (*child);
 224         }
 225
 226         if (!tree.write (path)) {
 227                 ::unlink (path.c_str());
 228                 return false;
 229         }
 230
 231         return true;
 232 }
 233
 234 bool
 235 Bindings::load (const string& path)
 236 {
 237         XMLTree tree;
 238
 239         if (!action_map) {
 240                 return false;
 241         }
 242
 243         if (!tree.read (path)) {
 244                 return false;
 245         }
 246
 247         press_bindings.clear ();
 248         release_bindings.clear ();
 249
 250         XMLNode& root (*tree.root());
 251         const XMLNodeList& children (root.children());
 252
 253         for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
 254
 255                 if ((*i)->name() == X_("Press") || (*i)->name() == X_("Release")) {
 256
 257                         KeyboardKey::Operation op;
 258
 259                         if ((*i)->name() == X_("Press")) {
 260                                 op = KeyboardKey::Press;
 261                         } else {
 262                                 op = KeyboardKey::Release;
 263                         }
 264
 265                         const XMLNodeList& gchildren ((*i)->children());
 266
 267                         for (XMLNodeList::const_iterator p = gchildren.begin(); p != gchildren.end(); ++p) {
 268
 269                                 XMLProperty* ap;
 270                                 XMLProperty* kp;
 271
 272                                 ap = (*p)->property ("action");
 273                                 kp = (*p)->property ("key");
 274
 275                                 if (!ap || !kp) {
 276                                         continue;
 277                                 }
 278
 279                                 RefPtr<Action> act = action_map->find_action (ap->value());
 280
 281                                 if (!act) {
 282                                         continue;
 283                                 }
 284
 285                                 KeyboardKey k;
 286
 287                                 if (!KeyboardKey::make_key (kp->value(), k)) {
 288                                         continue;
 289                                 }
 290
 291                                 add (k, op, act);
 292                         }
 293                 }
 294         }
 295
 296         return true;
 297 }
 298
 299 RefPtr<Action>
 300 ActionMap::find_action (const string& name)
 301 {
 302         _ActionMap::iterator a = actions.find (name);
 303
 304         if (a != actions.end()) {
 305                 return a->second;
 306         }
 307
 308         return RefPtr<Action>();
 309 }
 310
 311 RefPtr<Action>
 312 ActionMap::register_action (const char* path,
 313                             const char* name, const char* label, sigc::slot<void> sl)
 314 {
 315         string fullpath;
 316
 317         RefPtr<Action> act = Action::create (name, label);
 318
 319         act->signal_activate().connect (sl);
 320
 321         fullpath = path;
 322         fullpath += '/';
 323         fullpath += name;
 324
 325         actions.insert (_ActionMap::value_type (fullpath, act));
 326         return act;
 327 }
 328
 329 RefPtr<Action>
 330 ActionMap::register_radio_action (const char* path, Gtk::RadioAction::Group& rgroup,
 331                                   const char* name, const char* label,
 332                                   sigc::slot<void,GtkAction*> sl,
 333                                   int value)
 334 {
 335         string fullpath;
 336
 337         RefPtr<Action> act = RadioAction::create (rgroup, name, label);
 338         RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
 339         ract->property_value() = value;
 340
 341         act->signal_activate().connect (sigc::bind (sl, act->gobj()));
 342
 343         fullpath = path;
 344         fullpath += '/';
 345         fullpath += name;
 346
 347         actions.insert (_ActionMap::value_type (fullpath, act));
 348         return act;
 349 }
 350
 351 RefPtr<Action>
 352 ActionMap::register_toggle_action (const char* path,
 353                                    const char* name, const char* label, sigc::slot<void> sl)
 354 {
 355         string fullpath;
 356
 357         RefPtr<Action> act = ToggleAction::create (name, label);
 358
 359         act->signal_activate().connect (sl);
 360
 361         fullpath = path;
 362         fullpath += '/';
 363         fullpath += name;
 364
 365         actions.insert (_ActionMap::value_type (fullpath, act));
 366         return act;
 367 }