/[svn]/gigedit/trunk/src/gigedit/gigedit.cpp
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Diff of /gigedit/trunk/src/gigedit/gigedit.cpp

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revision 1328 by schoenebeck, Fri Sep 7 21:18:31 2007 UTC revision 1853 by schoenebeck, Sun Mar 1 22:26:36 2009 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (C) 2007 Andreas Persson   * Copyright (C) 2007, 2008 Andreas Persson
3   *   *
4   * This program is free software; you can redistribute it and/or   * This program is free software; you can redistribute it and/or
5   * modify it under the terms of the GNU General Public License as   * modify it under the terms of the GNU General Public License as
# Line 20  Line 20 
20  #include "gigedit.h"  #include "gigedit.h"
21    
22  #include <gtkmm/main.h>  #include <gtkmm/main.h>
23    #include <glibmm/main.h>
24  #include "mainwindow.h"  #include "mainwindow.h"
25    
26  #include <libintl.h>  #include "global.h"
 #include <config.h>  
27    
28  // the app has to work from a DLL as well, so we hard code argv  namespace {
29  int argc = 1;  
30  const char* argv_c[] = { "gigedit" };  // State for a gigedit thread.
31  char** argv = const_cast<char**>(argv_c);  //
32    // This class is only used when gigedit is run as a plugin and makes
33  static void __init_app() {  // sure that there's only one Gtk::Main event loop. The event loop is
34      setlocale(LC_ALL, "");  // started in a separate thread. The plugin thread just dispatches an
35      bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);  // event to the main loop to open a window and then goes to sleep
36      bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");  // until the window is closed.
37      textdomain(GETTEXT_PACKAGE);  //
38      // make sure thread_init() is called once and ONLY once per process  class GigEditState : public sigc::trackable {
39      if (!Glib::thread_supported()) Glib::thread_init();  public:
40        GigEditState(GigEdit* parent) : parent(parent) { }
41        void run(gig::Instrument* pInstrument);
42    
43        MainWindow* window;
44    
45    private:
46    
47        // simple condition variable abstraction
48        class Cond {
49        private:
50            bool pred;
51            Glib::Mutex mutex;
52            Glib::Cond cond;
53        public:
54            Cond() : pred(false) { }
55            void signal() {
56                Glib::Mutex::Lock lock(mutex);
57                pred = true;
58                cond.signal();
59            }
60            void wait() {
61                Glib::Mutex::Lock lock(mutex);
62                while (!pred) cond.wait(mutex);
63            }
64        };
65    
66        static Glib::StaticMutex mutex;
67        static Glib::Dispatcher* dispatcher;
68        static GigEditState* current;
69    
70        static void main_loop_run(Cond* intialized);
71        static void open_window_static();
72    
73        GigEdit* parent;
74        Cond open;
75        Cond close;
76        gig::Instrument* instrument;
77    
78        void open_window();
79        void close_window();
80    };
81    
82    void init_app() {
83        static bool process_initialized = false;
84        if (!process_initialized) {
85            std::cout << "Initializing 3rd party services needed by gigedit.\n"
86                      << std::flush;
87            setlocale(LC_ALL, "");
88    
89    #if HAVE_GETTEXT
90    
91    #ifdef WIN32
92    #if GLIB_CHECK_VERSION(2, 16, 0)
93            gchar* root =
94                g_win32_get_package_installation_directory_of_module(NULL);
95    #else
96            gchar* root =
97                g_win32_get_package_installation_directory(NULL, NULL);
98    #endif
99            gchar* temp = g_build_filename(root, "/share/locale", NULL);
100            g_free(root);
101            gchar* localedir = g_win32_locale_filename_from_utf8(temp);
102            g_free(temp);
103            bindtextdomain(GETTEXT_PACKAGE, localedir);
104            g_free(localedir);
105    #else
106            bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
107    #endif
108            bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
109            textdomain(GETTEXT_PACKAGE);
110    #endif // HAVE_GETTEXT
111    
112            // make sure thread_init() is called once and ONLY once per process
113            if (!Glib::thread_supported()) Glib::thread_init();
114    
115            process_initialized = true;
116        }
117  }  }
118    
119  static void __connect_signals(GigEdit* gigedit, MainWindow* mainwindow) {  void connect_signals(GigEdit* gigedit, MainWindow* mainwindow) {
120      // the signals of the "GigEdit" class are actually just proxies, that      // the signals of the "GigEdit" class are actually just proxies, that
121      // is they simply forward the signals of the internal classes to the      // is they simply forward the signals of the internal classes to the
122      // outer world      // outer world
# Line 67  static void __connect_signals(GigEdit* g Line 144  static void __connect_signals(GigEdit* g
144      mainwindow->signal_dimreg_changed().connect(      mainwindow->signal_dimreg_changed().connect(
145          gigedit->signal_dimreg_changed().make_slot()          gigedit->signal_dimreg_changed().make_slot()
146      );      );
147        mainwindow->signal_sample_changed().connect(
148            gigedit->signal_sample_changed().make_slot()
149        );
150      mainwindow->signal_sample_ref_changed().connect(      mainwindow->signal_sample_ref_changed().connect(
151          gigedit->signal_sample_ref_changed().make_slot()          gigedit->signal_sample_ref_changed().make_slot()
152      );      );
153        mainwindow->signal_keyboard_key_hit().connect(
154            gigedit->signal_keyboard_key_hit().make_slot()
155        );
156        mainwindow->signal_keyboard_key_released().connect(
157            gigedit->signal_keyboard_key_released().make_slot()
158        );
159  }  }
160    
161  int GigEdit::run() {  } // namespace
162      __init_app();  
163      Gtk::Main kit(argc, argv);  GigEdit::GigEdit() {
164      MainWindow window;      state = NULL;
     __connect_signals(this, &window);  
     kit.run(window);  
     return 0;  
165  }  }
166    
167  int GigEdit::run(const char* pFileName) {  int GigEdit::run(int argc, char* argv[]) {
168      __init_app();      init_app();
169    
170      Gtk::Main kit(argc, argv);      Gtk::Main kit(argc, argv);
171      MainWindow window;      MainWindow window;
172      __connect_signals(this, &window);      connect_signals(this, &window);
173      if (pFileName) window.load_file(pFileName);      if (argc >= 2) window.load_file(argv[1]);
174      kit.run(window);      kit.run(window);
175      return 0;      return 0;
176  }  }
177    
178  int GigEdit::run(gig::Instrument* pInstrument) {  int GigEdit::run(gig::Instrument* pInstrument) {
179      __init_app();      init_app();
180      Gtk::Main kit(argc, argv);  
181      MainWindow window;      GigEditState state(this);
182      __connect_signals(this, &window);      this->state = &state;
183      if (pInstrument) window.load_instrument(pInstrument);      state.run(pInstrument);
184      kit.run(window);      this->state = NULL;
185      return 0;      return 0;
186  }  }
187    
188  sigc::signal<void, gig::File*> GigEdit::signal_file_structure_to_be_changed() {  void GigEdit::on_note_on_event(int key, int velocity) {
189        if (!this->state) return;
190        GigEditState* state = (GigEditState*) this->state;
191        state->window->signal_note_on().emit(key, velocity);
192    }
193    
194    void GigEdit::on_note_off_event(int key, int velocity) {
195        if (!this->state) return;
196        GigEditState* state = (GigEditState*) this->state;
197        state->window->signal_note_off().emit(key, velocity);
198    }
199    
200    sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_to_be_changed() {
201      return file_structure_to_be_changed_signal;      return file_structure_to_be_changed_signal;
202  }  }
203    
204  sigc::signal<void, gig::File*> GigEdit::signal_file_structure_changed() {  sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_changed() {
205      return file_structure_changed_signal;      return file_structure_changed_signal;
206  }  }
207    
208  sigc::signal<void, std::list<gig::Sample*> > GigEdit::signal_samples_to_be_removed() {  sigc::signal<void, std::list<gig::Sample*> >& GigEdit::signal_samples_to_be_removed() {
209      return samples_to_be_removed_signal;      return samples_to_be_removed_signal;
210  }  }
211    
212  sigc::signal<void> GigEdit::signal_samples_removed() {  sigc::signal<void>& GigEdit::signal_samples_removed() {
213      return samples_removed_signal;      return samples_removed_signal;
214  }  }
215    
216  sigc::signal<void, gig::Region*> GigEdit::signal_region_to_be_changed() {  sigc::signal<void, gig::Region*>& GigEdit::signal_region_to_be_changed() {
217      return region_to_be_changed_signal;      return region_to_be_changed_signal;
218  }  }
219    
220  sigc::signal<void, gig::Region*> GigEdit::signal_region_changed() {  sigc::signal<void, gig::Region*>& GigEdit::signal_region_changed() {
221      return region_changed_signal;      return region_changed_signal;
222  }  }
223    
224  sigc::signal<void, gig::DimensionRegion*> GigEdit::signal_dimreg_to_be_changed() {  sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_to_be_changed() {
225      return dimreg_to_be_changed_signal;      return dimreg_to_be_changed_signal;
226  }  }
227    
228  sigc::signal<void, gig::DimensionRegion*> GigEdit::signal_dimreg_changed() {  sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_changed() {
229      return dimreg_changed_signal;      return dimreg_changed_signal;
230  }  }
231    
232  sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/> GigEdit::signal_sample_ref_changed() {  sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() {
233        return sample_changed_signal;
234    }
235    
236    sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/>& GigEdit::signal_sample_ref_changed() {
237      return sample_ref_changed_signal;      return sample_ref_changed_signal;
238  }  }
239    
240    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_hit() {
241        return keyboard_key_hit_signal;
242    }
243    
244    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_released() {
245        return keyboard_key_released_signal;
246    }
247    
248    Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
249    Glib::Dispatcher* GigEditState::dispatcher = 0;
250    GigEditState* GigEditState::current = 0;
251    
252    void GigEditState::open_window_static() {
253        GigEditState* c = GigEditState::current;
254        c->open.signal();
255        c->open_window();
256    }
257    
258    void GigEditState::open_window() {
259        window = new MainWindow();
260    
261        connect_signals(parent, window);
262        if (instrument) window->load_instrument(instrument);
263    
264        window->signal_hide().connect(sigc::mem_fun(this,
265                                                    &GigEditState::close_window));
266        window->present();
267    }
268    
269    void GigEditState::close_window() {
270        delete window;
271        close.signal();
272    }
273    
274    void GigEditState::main_loop_run(Cond* initialized) {
275        int argc = 1;
276        const char* argv_c[] = { "gigedit" };
277        char** argv = const_cast<char**>(argv_c);
278        Gtk::Main main_loop(argc, argv);
279    
280        dispatcher = new Glib::Dispatcher();
281        dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
282        initialized->signal();
283    
284        main_loop.run();
285    }
286    
287    void GigEditState::run(gig::Instrument* pInstrument) {
288        mutex.lock(); // lock access to static variables
289    
290        static bool main_loop_started = false;
291        if (!main_loop_started) {
292            Cond initialized;
293            Glib::Thread::create(
294                sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
295                           &initialized),
296                false);
297            initialized.wait();
298            main_loop_started = true;
299        }
300        instrument = pInstrument;
301        current = this;
302        dispatcher->emit();
303        open.wait(); // wait until the GUI thread has read current
304        mutex.unlock();
305        close.wait(); // sleep until window is closed
306    }
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