/[svn]/gigedit/trunk/src/gigedit/gigedit.cpp
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revision 1322 by schoenebeck, Tue Sep 4 11:04:56 2007 UTC revision 1823 by persson, Sun Dec 28 09:58:05 2008 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 {
 int argc = 1;  
 const char* argv_c[] = { "gigedit" };  
 char** argv = const_cast<char**>(argv_c);  
29    
30  static void __init_app() {  // State for a gigedit thread.
31      setlocale(LC_ALL, "");  //
32      bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);  // This class is only used when gigedit is run as a plugin and makes
33      bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");  // sure that there's only one Gtk::Main event loop. The event loop is
34      textdomain(GETTEXT_PACKAGE);  // started in a separate thread. The plugin thread just dispatches an
35    // event to the main loop to open a window and then goes to sleep
36    // until the window is closed.
37    //
38    class GigEditState : public sigc::trackable {
39    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      Glib::thread_init();          // 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 70  static void __connect_signals(GigEdit* g Line 147  static void __connect_signals(GigEdit* g
147      mainwindow->signal_sample_ref_changed().connect(      mainwindow->signal_sample_ref_changed().connect(
148          gigedit->signal_sample_ref_changed().make_slot()          gigedit->signal_sample_ref_changed().make_slot()
149      );      );
150        mainwindow->signal_keyboard_key_hit().connect(
151            gigedit->signal_keyboard_key_hit().make_slot()
152        );
153        mainwindow->signal_keyboard_key_released().connect(
154            gigedit->signal_keyboard_key_released().make_slot()
155        );
156  }  }
157    
158  int GigEdit::run() {  } // namespace
159      __init_app();  
160      Gtk::Main kit(argc, argv);  GigEdit::GigEdit() {
161      MainWindow window;      state = NULL;
     __connect_signals(this, &window);  
     kit.run(window);  
     return 0;  
162  }  }
163    
164  int GigEdit::run(const char* pFileName) {  int GigEdit::run(int argc, char* argv[]) {
165      __init_app();      init_app();
166    
167      Gtk::Main kit(argc, argv);      Gtk::Main kit(argc, argv);
168      MainWindow window;      MainWindow window;
169      __connect_signals(this, &window);      connect_signals(this, &window);
170      if (pFileName) window.load_file(pFileName);      if (argc >= 2) window.load_file(argv[1]);
171      kit.run(window);      kit.run(window);
172      return 0;      return 0;
173  }  }
174    
175  int GigEdit::run(gig::Instrument* pInstrument) {  int GigEdit::run(gig::Instrument* pInstrument) {
176      __init_app();      init_app();
177      Gtk::Main kit(argc, argv);  
178      MainWindow window;      GigEditState state(this);
179      __connect_signals(this, &window);      this->state = &state;
180      if (pInstrument) window.load_instrument(pInstrument);      state.run(pInstrument);
181      kit.run(window);      this->state = NULL;
182      return 0;      return 0;
183  }  }
184    
185  sigc::signal<void, gig::File*> GigEdit::signal_file_structure_to_be_changed() {  void GigEdit::on_note_on_event(int key, int velocity) {
186        if (!this->state) return;
187        GigEditState* state = (GigEditState*) this->state;
188        state->window->signal_note_on().emit(key, velocity);
189    }
190    
191    void GigEdit::on_note_off_event(int key, int velocity) {
192        if (!this->state) return;
193        GigEditState* state = (GigEditState*) this->state;
194        state->window->signal_note_off().emit(key, velocity);
195    }
196    
197    sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_to_be_changed() {
198      return file_structure_to_be_changed_signal;      return file_structure_to_be_changed_signal;
199  }  }
200    
201  sigc::signal<void, gig::File*> GigEdit::signal_file_structure_changed() {  sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_changed() {
202      return file_structure_changed_signal;      return file_structure_changed_signal;
203  }  }
204    
205  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() {
206      return samples_to_be_removed_signal;      return samples_to_be_removed_signal;
207  }  }
208    
209  sigc::signal<void> GigEdit::signal_samples_removed() {  sigc::signal<void>& GigEdit::signal_samples_removed() {
210      return samples_removed_signal;      return samples_removed_signal;
211  }  }
212    
213  sigc::signal<void, gig::Region*> GigEdit::signal_region_to_be_changed() {  sigc::signal<void, gig::Region*>& GigEdit::signal_region_to_be_changed() {
214      return region_to_be_changed_signal;      return region_to_be_changed_signal;
215  }  }
216    
217  sigc::signal<void, gig::Region*> GigEdit::signal_region_changed() {  sigc::signal<void, gig::Region*>& GigEdit::signal_region_changed() {
218      return region_changed_signal;      return region_changed_signal;
219  }  }
220    
221  sigc::signal<void, gig::DimensionRegion*> GigEdit::signal_dimreg_to_be_changed() {  sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_to_be_changed() {
222      return dimreg_to_be_changed_signal;      return dimreg_to_be_changed_signal;
223  }  }
224    
225  sigc::signal<void, gig::DimensionRegion*> GigEdit::signal_dimreg_changed() {  sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_changed() {
226      return dimreg_changed_signal;      return dimreg_changed_signal;
227  }  }
228    
229  sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/> GigEdit::signal_sample_ref_changed() {  sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/>& GigEdit::signal_sample_ref_changed() {
230      return sample_ref_changed_signal;      return sample_ref_changed_signal;
231  }  }
232    
233    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_hit() {
234        return keyboard_key_hit_signal;
235    }
236    
237    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_released() {
238        return keyboard_key_released_signal;
239    }
240    
241    Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
242    Glib::Dispatcher* GigEditState::dispatcher = 0;
243    GigEditState* GigEditState::current = 0;
244    
245    void GigEditState::open_window_static() {
246        GigEditState* c = GigEditState::current;
247        c->open.signal();
248        c->open_window();
249    }
250    
251    void GigEditState::open_window() {
252        window = new MainWindow();
253    
254        connect_signals(parent, window);
255        if (instrument) window->load_instrument(instrument);
256    
257        window->signal_hide().connect(sigc::mem_fun(this,
258                                                    &GigEditState::close_window));
259        window->present();
260    }
261    
262    void GigEditState::close_window() {
263        delete window;
264        close.signal();
265    }
266    
267    void GigEditState::main_loop_run(Cond* initialized) {
268        int argc = 1;
269        const char* argv_c[] = { "gigedit" };
270        char** argv = const_cast<char**>(argv_c);
271        Gtk::Main main_loop(argc, argv);
272    
273        dispatcher = new Glib::Dispatcher();
274        dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
275        initialized->signal();
276    
277        main_loop.run();
278    }
279    
280    void GigEditState::run(gig::Instrument* pInstrument) {
281        mutex.lock(); // lock access to static variables
282    
283        static bool main_loop_started = false;
284        if (!main_loop_started) {
285            Cond initialized;
286            Glib::Thread::create(
287                sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
288                           &initialized),
289                false);
290            initialized.wait();
291            main_loop_started = true;
292        }
293        instrument = pInstrument;
294        current = this;
295        dispatcher->emit();
296        open.wait(); // wait until the GUI thread has read current
297        mutex.unlock();
298        close.wait(); // sleep until window is closed
299    }
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