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 string
  14 KeyboardKey::name () const
  15 {
  16         int s = state();
  17
  18         string str;
  19
  20         if (s & Keyboard::PrimaryModifier) {
  21                 str += "Primary";
  22         }
  23         if (s & Keyboard::SecondaryModifier) {
  24                 if (!str.empty()) {
  25                         str += '-';
  26                 }
  27                 str += "Secondary";
  28         }
  29         if (s & Keyboard::TertiaryModifier) {
  30                 if (!str.empty()) {
  31                         str += '-';
  32                 }
  33                 str += "Tertiary";
  34         }
  35         if (s & Keyboard::Level4Modifier) {
  36                 if (!str.empty()) {
  37                         str += '-';
  38                 }
  39                 str += "Level4";
  40         }
  41
  42         if (!str.empty()) {
  43                 str += '-';
  44         }
  45
  46         str += gdk_keyval_name (key());
  47
  48         return str;
  49 }
  50
  51 bool
  52 KeyboardKey::make_key (const string& str, KeyboardKey& k)
  53 {
  54         int s = 0;
  55
  56         if (str.find ("Primary") != string::npos) {
  57                 s |= Keyboard::PrimaryModifier;
  58         }
  59
  60         if (str.find ("Secondary") != string::npos) {
  61                 s |= Keyboard::SecondaryModifier;
  62         }
  63
  64         if (str.find ("Tertiary") != string::npos) {
  65                 s |= Keyboard::TertiaryModifier;
  66         }
  67
  68         if (str.find ("Level4") != string::npos) {
  69                 s |= Keyboard::Level4Modifier;
  70         }
  71
  72         string::size_type lastmod = str.find_last_of ('-');
  73         guint keyval;
  74
  75         if (lastmod == string::npos) {
  76                 keyval = gdk_keyval_from_name (str.c_str());
  77         } else {
  78                 keyval = gdk_keyval_from_name (str.substr (lastmod+1).c_str());
  79         }
  80
  81         if (keyval == GDK_VoidSymbol) {
  82                 return false;
  83         }
  84
  85         k = KeyboardKey (s, keyval);
  86         return true;
  87 }
  88
  89 Bindings::Bindings ()
  90         : action_map (0)
  91 {
  92 }
  93
  94 Bindings::~Bindings()
  95 {
  96 }
  97
  98 void
  99 Bindings::set_action_map (ActionMap& am)
 100 {
 101         action_map = &am;
 102         press_bindings.clear ();
 103         release_bindings.clear ();
 104 }
 105
 106 bool
 107 Bindings::activate (KeyboardKey kb, KeyboardKey::Operation op)
 108 {
 109         KeybindingMap* kbm;
 110
 111         switch (op) {
 112         case KeyboardKey::Press:
 113                 kbm = &press_bindings;
 114                 break;
 115         case KeyboardKey::Release:
 116                 kbm = &release_bindings;
 117                 break;
 118         }
 119
 120         KeybindingMap::iterator k = kbm->find (kb);
 121
 122         if (k == kbm->end()) {
 123                 /* no entry for this key in the state map */
 124                 return false;
 125         }
 126
 127         /* lets do it ... */
 128
 129         cerr << "Firing up " << k->second->get_name() << endl;
 130         k->second->activate ();
 131         return true;
 132 }
 133
 134 void
 135 Bindings::add (KeyboardKey kb, KeyboardKey::Operation op, RefPtr<Action> what)
 136 {
 137         KeybindingMap* kbm;
 138
 139         switch (op) {
 140         case KeyboardKey::Press:
 141                 kbm = &press_bindings;
 142                 break;
 143         case KeyboardKey::Release:
 144                 kbm = &release_bindings;
 145                 break;
 146         }
 147
 148         KeybindingMap::iterator k = kbm->find (kb);
 149
 150         if (k == kbm->end()) {
 151                 pair<KeyboardKey,RefPtr<Action> > newpair (kb, what);
 152                 kbm->insert (newpair);
 153         } else {
 154                 k->second = what;
 155         }
 156 }
 157
 158 void
 159 Bindings::remove (KeyboardKey kb, KeyboardKey::Operation op)
 160 {
 161         KeybindingMap* kbm;
 162
 163         switch (op) {
 164         case KeyboardKey::Press:
 165                 kbm = &press_bindings;
 166                 break;
 167         case KeyboardKey::Release:
 168                 kbm = &release_bindings;
 169                 break;
 170         }
 171
 172         KeybindingMap::iterator k = kbm->find (kb);
 173
 174         if (k != kbm->end()) {
 175                 kbm->erase (k);
 176         }
 177 }
 178
 179 bool
 180 Bindings::save (const string& path)
 181 {
 182         XMLTree tree;
 183         XMLNode* root = new XMLNode (X_("Bindings"));
 184         tree.set_root (root);
 185
 186         XMLNode* presses = new XMLNode (X_("Press"));
 187         root->add_child_nocopy (*presses);
 188
 189         for (KeybindingMap::iterator k = press_bindings.begin(); k != press_bindings.end(); ++k) {
 190                 XMLNode* child;
 191                 child = new XMLNode (X_("Binding"));
 192                 child->add_property (X_("key"), k->first.name());
 193                 child->add_property (X_("action"), k->second->get_name());
 194                 presses->add_child_nocopy (*child);
 195         }
 196
 197         if (!tree.write (path)) {
 198                 ::unlink (path.c_str());
 199                 return false;
 200         }
 201
 202         return true;
 203 }
 204
 205 bool
 206 Bindings::load (const string& path)
 207 {
 208         XMLTree tree;
 209
 210         if (!action_map) {
 211                 return false;
 212         }
 213
 214         if (!tree.read (path)) {
 215                 return false;
 216         }
 217
 218         press_bindings.clear ();
 219         release_bindings.clear ();
 220
 221         XMLNode& root (*tree.root());
 222         const XMLNodeList& children (root.children());
 223
 224         for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
 225
 226                 if ((*i)->name() == X_("Press") || (*i)->name() == X_("Release")) {
 227
 228                         KeyboardKey::Operation op;
 229
 230                         if ((*i)->name() == X_("Press")) {
 231                                 op = KeyboardKey::Press;
 232                         } else {
 233                                 op = KeyboardKey::Release;
 234                         }
 235
 236                         const XMLNodeList& gchildren ((*i)->children());
 237
 238                         for (XMLNodeList::const_iterator p = gchildren.begin(); p != gchildren.end(); ++p) {
 239
 240                                 XMLProperty* ap;
 241                                 XMLProperty* kp;
 242
 243                                 ap = (*p)->property ("action");
 244                                 kp = (*p)->property ("key");
 245
 246                                 if (!ap || !kp) {
 247                                         continue;
 248                                 }
 249
 250                                 RefPtr<Action> act = action_map->find_action (ap->value());
 251
 252                                 if (!act) {
 253                                         continue;
 254                                 }
 255
 256                                 KeyboardKey k;
 257
 258                                 if (!KeyboardKey::make_key (kp->value(), k)) {
 259                                         continue;
 260                                 }
 261
 262                                 add (k, op, act);
 263                         }
 264                 }
 265         }
 266
 267         return true;
 268 }
 269
 270 RefPtr<Action>
 271 ActionMap::find_action (const string& name)
 272 {
 273         _ActionMap::iterator a = actions.find (name);
 274
 275         if (a != actions.end()) {
 276                 return a->second;
 277         }
 278
 279         return RefPtr<Action>();
 280 }
 281
 282 RefPtr<Action>
 283 ActionMap::register_action (const char* path,
 284                             const char* name, const char* label, sigc::slot<void> sl)
 285 {
 286         string fullpath;
 287
 288         RefPtr<Action> act = Action::create (name, label);
 289
 290         act->signal_activate().connect (sl);
 291
 292         fullpath = path;
 293         fullpath += '/';
 294         fullpath += name;
 295
 296         actions.insert (_ActionMap::value_type (fullpath, act));
 297         return act;
 298 }
 299
 300 RefPtr<Action>
 301 ActionMap::register_radio_action (const char* path, Gtk::RadioAction::Group& rgroup,
 302                                  const char* name, const char* label, sigc::slot<void> sl)
 303 {
 304         string fullpath;
 305
 306         RefPtr<Action> act = RadioAction::create (rgroup, name, label);
 307
 308         act->signal_activate().connect (sl);
 309
 310         fullpath = path;
 311         fullpath += '/';
 312         fullpath += name;
 313
 314         actions.insert (_ActionMap::value_type (fullpath, act));
 315         return act;
 316 }
 317
 318 RefPtr<Action>
 319 ActionMap::register_toggle_action (const char* path,
 320                                    const char* name, const char* label, sigc::slot<void> sl)
 321 {
 322         string fullpath;
 323
 324         RefPtr<Action> act = ToggleAction::create (name, label);
 325
 326         act->signal_activate().connect (sl);
 327
 328         fullpath = path;
 329         fullpath += '/';
 330         fullpath += name;
 331
 332         actions.insert (_ActionMap::value_type (fullpath, act));
 333         return act;
 334 }