src/gigedit/gigedit.cpp

/*
 * Copyright (C) 2007-2015 Andreas Persson
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with program; see the file COPYING. If not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#include <glibmmconfig.h>
// threads.h must be included first to be able to build with
// G_DISABLE_DEPRECATED
#if (GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION == 31 && GLIBMM_MICRO_VERSION >= 2) || \
    (GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION > 31) || GLIBMM_MAJOR_VERSION > 2
#include <glibmm/threads.h>
#endif

#include "gigedit.h"

#include <glibmm/dispatcher.h>
#include <glibmm/main.h>
#include <gtkmm/main.h>

#if defined(__APPLE__)
# include <CoreFoundation/CoreFoundation.h>
# include "MacHelper.h"
#endif

#include "mainwindow.h"

#include "global.h"

#ifdef __APPLE__
#include <dlfcn.h>
#include <glibmm/fileutils.h>
#include <glibmm/miscutils.h>
#endif

//TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments below in this file for details)
#if defined(__APPLE__) && HAVE_LINUXSAMPLER // the following global external variables are defined in LinuxSampler's global_private.cpp ...
extern bool g_mainThreadCallbackSupported;
extern void (*g_mainThreadCallback)(void* info);
extern void* g_mainThreadCallbackInfo;
extern bool g_fireMainThreadCallback;
#endif

namespace {

// State for a gigedit thread.
//
// This class is only used when gigedit is run as a plugin and makes
// sure that there's only one Gtk::Main event loop. The event loop is
// started in a separate thread. The plugin thread just dispatches an
// event to the main loop to open a window and then goes to sleep
// until the window is closed.
//
class GigEditState : public sigc::trackable {
public:
    GigEditState(GigEdit* parent) :
        window(0), parent(parent), instrument(0) { }
    void run(gig::Instrument* pInstrument);

    MainWindow* window;

private:

    // simple condition variable abstraction
    class Cond {
    private:
        bool pred;
        Glib::Threads::Mutex mutex;
        Glib::Threads::Cond cond;
    public:
        Cond() : pred(false) { }
        void signal() {
            Glib::Threads::Mutex::Lock lock(mutex);
            pred = true;
            cond.signal();
        }
        void wait() {
            Glib::Threads::Mutex::Lock lock(mutex);
            while (!pred) cond.wait(mutex);
        }
    };

#ifdef OLD_THREADS
    static Glib::StaticMutex mutex;
#else
    static Glib::Threads::Mutex mutex;
#endif
    static Glib::Dispatcher* dispatcher;
    static GigEditState* current;

    static void main_loop_run(Cond* intialized);
    static void open_window_static();

    GigEdit* parent;
    Cond open;
    Cond close;
    Cond initialized;
    gig::Instrument* instrument;

    void open_window();
    void close_window();
#if defined(__APPLE__)
    static void runInCFMainLoop(void* info);
#endif
};

#ifdef WIN32
HINSTANCE gigedit_dll_handle = 0;
#endif

#ifdef __APPLE__
std::string gigedit_localedir;
#endif

void init_app() {
    static bool process_initialized = false;
    if (!process_initialized) {
        std::cout << "Initializing 3rd party services needed by gigedit.\n"
                  << std::flush;
        setlocale(LC_ALL, "");

#ifdef __APPLE__
        // Look for pango.modules, gdk-pixbuf.loaders and locale files
        // under the same dir as the gigedit dylib is installed in.
        Dl_info info;
        if (dladdr((void*)&init_app, &info)) {
            std::string libdir = Glib::path_get_dirname(info.dli_fname);

            if (Glib::getenv("PANGO_SYSCONFDIR") == "" &&
                Glib::file_test(Glib::build_filename(libdir,
                                                     "pango/pango.modules"),
                                Glib::FILE_TEST_EXISTS)) {
                Glib::setenv("PANGO_SYSCONFDIR", libdir, true);
            }
            if (Glib::getenv("GDK_PIXBUF_MODULE_FILE") == "") {
                std::string module_file =
                    Glib::build_filename(libdir,
                                         "gtk-2.0/gdk-pixbuf.loaders");
                if (Glib::file_test(module_file, Glib::FILE_TEST_EXISTS)) {
                    Glib::setenv("GDK_PIXBUF_MODULE_FILE", module_file, true);
                }
            }
  //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
  //#if HAVE_GETTEXT
            std::string localedir = Glib::build_filename(libdir, "locale");
            if (Glib::file_test(localedir, Glib::FILE_TEST_EXISTS)) {
                gigedit_localedir = localedir;
                bindtextdomain(GETTEXT_PACKAGE, gigedit_localedir.c_str());
            } else {
                bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
            }
  //#endif
        }

        // The gtk file dialog stores its recent files state in
        // ~/.local/share
        g_mkdir_with_parents(
            Glib::build_filename(Glib::get_home_dir(),
                                 ".local/share").c_str(), 0777);
#endif // __APPLE__

//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
#if (HAVE_GETTEXT || defined(__APPLE__))

  #ifdef WIN32
    #if GLIB_CHECK_VERSION(2, 16, 0)
        gchar* root =
            g_win32_get_package_installation_directory_of_module(gigedit_dll_handle);
    #else
        gchar* root =
            g_win32_get_package_installation_directory(NULL, NULL);
    #endif
        gchar* temp = g_build_filename(root, "/share/locale", NULL);
        g_free(root);
        gchar* localedir = g_win32_locale_filename_from_utf8(temp);
        g_free(temp);
        bindtextdomain(GETTEXT_PACKAGE, localedir);
        g_free(localedir);
  #elif !defined(__APPLE__)
        bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
  #endif
        bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
        textdomain(GETTEXT_PACKAGE);
#endif // HAVE_GETTEXT

#ifdef OLD_THREADS
        // make sure thread_init() is called once and ONLY once per process
        if (!Glib::thread_supported()) Glib::thread_init();
#endif
        process_initialized = true;
    }
}

void connect_signals(GigEdit* gigedit, MainWindow* mainwindow) {
    // the signals of the "GigEdit" class are actually just proxies, that
    // is they simply forward the signals of the internal classes to the
    // outer world
    mainwindow->signal_file_structure_to_be_changed().connect(
        gigedit->signal_file_structure_to_be_changed().make_slot()
    );
    mainwindow->signal_file_structure_changed().connect(
        gigedit->signal_file_structure_changed().make_slot()
    );
    mainwindow->signal_samples_to_be_removed().connect(
        gigedit->signal_samples_to_be_removed().make_slot()
    );
    mainwindow->signal_samples_removed().connect(
        gigedit->signal_samples_removed().make_slot()
    );
    mainwindow->signal_region_to_be_changed().connect(
        gigedit->signal_region_to_be_changed().make_slot()
    );
    mainwindow->signal_region_changed().connect(
        gigedit->signal_region_changed().make_slot()
    );
    mainwindow->signal_dimreg_to_be_changed().connect(
        gigedit->signal_dimreg_to_be_changed().make_slot()
    );
    mainwindow->signal_dimreg_changed().connect(
        gigedit->signal_dimreg_changed().make_slot()
    );
    mainwindow->signal_sample_changed().connect(
        gigedit->signal_sample_changed().make_slot()
    );
    mainwindow->signal_sample_ref_changed().connect(
        gigedit->signal_sample_ref_changed().make_slot()
    );
    mainwindow->signal_keyboard_key_hit().connect(
        gigedit->signal_keyboard_key_hit().make_slot()
    );
    mainwindow->signal_keyboard_key_released().connect(
        gigedit->signal_keyboard_key_released().make_slot()
    );
    mainwindow->signal_switch_sampler_instrument().connect(
        gigedit->signal_switch_sampler_instrument().make_slot()
    );
}

} // namespace

GigEdit::GigEdit() {
    state = NULL;
}

int GigEdit::run(int argc, char* argv[]) {
    init_app();

    Gtk::Main kit(argc, argv);

//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
#if (/*HAVE_GETTEXT &&*/ defined(__APPLE__))
    // Gtk::Main binds the gtk locale to a possible non-existent
    // directory. If we have bundled gtk locale files, we rebind here,
    // after the Gtk::Main constructor.
    if (!gigedit_localedir.empty()) {
        bindtextdomain("gtk20", gigedit_localedir.c_str());
    }
#endif

    MainWindow window;
    connect_signals(this, &window);
    if (argc >= 2) window.load_file(argv[1]);
    kit.run(window);
    return 0;
}

int GigEdit::run(gig::Instrument* pInstrument) {
    init_app();

    GigEditState state(this);
    this->state = &state;
    state.run(pInstrument);
    this->state = NULL;
    return 0;
}

void GigEdit::on_note_on_event(int key, int velocity) {
    if (!this->state) return;
    GigEditState* state = static_cast<GigEditState*>(this->state);
    state->window->signal_note_on().emit(key, velocity);
}

void GigEdit::on_note_off_event(int key, int velocity) {
    if (!this->state) return;
    GigEditState* state = static_cast<GigEditState*>(this->state);
    state->window->signal_note_off().emit(key, velocity);
}

sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_to_be_changed() {
    return file_structure_to_be_changed_signal;
}

sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_changed() {
    return file_structure_changed_signal;
}

sigc::signal<void, std::list<gig::Sample*> >& GigEdit::signal_samples_to_be_removed() {
    return samples_to_be_removed_signal;
}

sigc::signal<void>& GigEdit::signal_samples_removed() {
    return samples_removed_signal;
}

sigc::signal<void, gig::Region*>& GigEdit::signal_region_to_be_changed() {
    return region_to_be_changed_signal;
}

sigc::signal<void, gig::Region*>& GigEdit::signal_region_changed() {
    return region_changed_signal;
}

sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_to_be_changed() {
    return dimreg_to_be_changed_signal;
}

sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_changed() {
    return dimreg_changed_signal;
}

sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() {
    return sample_changed_signal;
}

sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/>& GigEdit::signal_sample_ref_changed() {
    return sample_ref_changed_signal;
}

sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_hit() {
    return keyboard_key_hit_signal;
}

sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_released() {
    return keyboard_key_released_signal;
}

sigc::signal<void, gig::Instrument*>& GigEdit::signal_switch_sampler_instrument() {
    return switch_sampler_instrument_signal;
}

#ifdef OLD_THREADS
Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
#else
Glib::Threads::Mutex GigEditState::mutex;
#endif
Glib::Dispatcher* GigEditState::dispatcher = 0;
GigEditState* GigEditState::current = 0;

void GigEditState::open_window_static() {
    GigEditState* c = GigEditState::current;
    c->open.signal();
    c->open_window();
}

void GigEditState::open_window() {
    window = new MainWindow();

    connect_signals(parent, window);
    if (instrument) window->load_instrument(instrument);

    window->signal_hide().connect(sigc::mem_fun(this,
                                                &GigEditState::close_window));
    window->present();
}

void GigEditState::close_window() {
    delete window;
    close.signal();
}

void GigEditState::main_loop_run(Cond* initialized) {
    int argc = 1;
    const char* argv_c[] = { "gigedit" };
    char** argv = const_cast<char**>(argv_c);
    Gtk::Main main_loop(argc, argv);
//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
#if (/*HAVE_GETTEXT &&*/ defined(__APPLE__))
    if (!gigedit_localedir.empty()) {
        bindtextdomain("gtk20", gigedit_localedir.c_str());
    }
#endif

    dispatcher = new Glib::Dispatcher();
    dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
    initialized->signal();

    main_loop.run();
}

#if defined(__APPLE__)

void GigEditState::runInCFMainLoop(void* info) {
    printf("runInCFMainLoop() entered\n"); fflush(stdout);
    GigEditState* state = static_cast<GigEditState*>(info);
    state->main_loop_run(
        &state->initialized
    );
    printf("runInCFMainLoop() left\n"); fflush(stdout);
}

#endif // __APPLE__

void GigEditState::run(gig::Instrument* pInstrument) {
    mutex.lock(); // lock access to static variables

    static bool main_loop_started = false;
    instrument = pInstrument;
    if (!main_loop_started) {
#if defined(__APPLE__) && HAVE_LINUXSAMPLER
        // spawn GUI on main thread :
        //     On OS X the Gtk GUI can only be launched on a process's "main"
        //     thread. When trying to launch the Gtk GUI on any other thread,
        //     there will only be a white box, because the GUI would not receive
        //     any events, since it would listen to the wrong system event loop.
        //     So far we haven't investigated whether there is any kind of
        //     circumvention to allow doing that also on other OS X threads.
        {
            // In case the sampler was launched as standalone sampler (not as
            // plugin), use the following global callback variable hack ...
            if (g_mainThreadCallbackSupported) {
                printf("Setting callback ...\n"); fflush(stdout);
                g_mainThreadCallback = runInCFMainLoop;
                g_mainThreadCallbackInfo = this;
                g_fireMainThreadCallback = true;
                printf("Callback variables set.\n"); fflush(stdout);
            } else { // Sampler was launched as (i.e. AU / VST) plugin ...
                // When the sampler was launched as plugin, we have no idea
                // whether any sampler thread is the process's "main" thread.
                // So that's why we are trying to use Apple's API for trying to
                // launch our callback function on the process's main thread.
                // However this will only work, if the plugin host application
                // established a CF event loop, that is if the application is
                // using Cocoa for its GUI. For other host applications the
                // callback will never be executed and thus gigedit would not
                // popup.
                
                // should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread()
                /*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext();
                sourceContext.info = this;
                sourceContext.perform = runInCFMainLoop;
                printf("CFRunLoopSourceCreate\n"); fflush(stdout);
                CFRunLoopSourceRef source = CFRunLoopSourceCreate(
                    kCFAllocatorDefault, // allocator
                    1, // priority
                    &sourceContext
                );
                printf("CFRunLoopAddSource\n"); fflush(stdout);
                CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode);
                CFRelease(source);*/
                
                // use Apple's Objective-C API to call our callback function
                // 'runInCFMainLoop()' on the process's "main" thread
                macHelperRunCFuncOnMainThread(runInCFMainLoop, this);
            }
        }
#else
  #ifdef OLD_THREADS
        Glib::Thread::create(
            sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
                       &initialized),
            false);
  #else
        Glib::Threads::Thread::create(
            sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
                       &initialized));
  #endif
#endif
        printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout);
        initialized.wait();
        printf("GUI is now initialized. Everything done.\n"); fflush(stdout);
        main_loop_started = true;
    }
    current = this;
    dispatcher->emit();
    open.wait(); // wait until the GUI thread has read current
    mutex.unlock();
    close.wait(); // sleep until window is closed
}

#if defined(WIN32)
extern "C" {
    BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
    {
        switch (reason) {
        case DLL_PROCESS_ATTACH:
            gigedit_dll_handle = instance;
            break;
        }
        return TRUE;
    }
}
#endif
1	schoenebeck	1225	/*
2	schoenebeck	2689	* Copyright (C) 2007-2015 Andreas Persson
3	schoenebeck	1225	*
4			* This program is free software; you can redistribute it and/or
5			* modify it under the terms of the GNU General Public License as
6			* published by the Free Software Foundation; either version 2, or (at
7			* your option) any later version.
8			*
9			* This program is distributed in the hope that it will be useful, but
10			* WITHOUT ANY WARRANTY; without even the implied warranty of
11			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12			* General Public License for more details.
13			*
14			* You should have received a copy of the GNU General Public License
15			* along with program; see the file COPYING. If not, write to the Free
16			* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
17			* 02110-1301 USA.
18			*/
19
20	persson	2841	#include <glibmmconfig.h>
21			// threads.h must be included first to be able to build with
22			// G_DISABLE_DEPRECATED
23			#if (GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION == 31 && GLIBMM_MICRO_VERSION >= 2) \|\| \
24			(GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION > 31) \|\| GLIBMM_MAJOR_VERSION > 2
25			#include <glibmm/threads.h>
26			#endif
27
28	schoenebeck	1225	#include "gigedit.h"
29
30	persson	2325	#include <glibmm/dispatcher.h>
31			#include <glibmm/main.h>
32	schoenebeck	1225	#include <gtkmm/main.h>
33	persson	2325
34	schoenebeck	2474	#if defined(__APPLE__)
35			# include <CoreFoundation/CoreFoundation.h>
36			# include "MacHelper.h"
37			#endif
38
39	schoenebeck	1225	#include "mainwindow.h"
40
41	schoenebeck	1396	#include "global.h"
42	schoenebeck	1225
43	persson	2470	#ifdef __APPLE__
44			#include <dlfcn.h>
45			#include <glibmm/fileutils.h>
46			#include <glibmm/miscutils.h>
47			#endif
48
49	schoenebeck	2474	//TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments below in this file for details)
50	persson	2841	#if defined(__APPLE__) && HAVE_LINUXSAMPLER // the following global external variables are defined in LinuxSampler's global_private.cpp ...
51	schoenebeck	2474	extern bool g_mainThreadCallbackSupported;
52			extern void (g_mainThreadCallback)(void info);
53			extern void* g_mainThreadCallbackInfo;
54			extern bool g_fireMainThreadCallback;
55			#endif
56
57	persson	1456	namespace {
58	schoenebeck	1225
59	persson	1456	// State for a gigedit thread.
60			//
61			// This class is only used when gigedit is run as a plugin and makes
62			// sure that there's only one Gtk::Main event loop. The event loop is
63			// started in a separate thread. The plugin thread just dispatches an
64			// event to the main loop to open a window and then goes to sleep
65			// until the window is closed.
66			//
67			class GigEditState : public sigc::trackable {
68			public:
69	persson	2841	GigEditState(GigEdit* parent) :
70			window(0), parent(parent), instrument(0) { }
71	persson	1456	void run(gig::Instrument* pInstrument);
72
73	schoenebeck	1654	MainWindow* window;
74
75	persson	1456	private:
76
77			// simple condition variable abstraction
78			class Cond {
79			private:
80			bool pred;
81	persson	2325	Glib::Threads::Mutex mutex;
82			Glib::Threads::Cond cond;
83	persson	1456	public:
84			Cond() : pred(false) { }
85			void signal() {
86	persson	2325	Glib::Threads::Mutex::Lock lock(mutex);
87	persson	1456	pred = true;
88			cond.signal();
89			}
90			void wait() {
91	persson	2325	Glib::Threads::Mutex::Lock lock(mutex);
92	persson	1456	while (!pred) cond.wait(mutex);
93			}
94			};
95
96	persson	2325	#ifdef OLD_THREADS
97	persson	1456	static Glib::StaticMutex mutex;
98	persson	2325	#else
99			static Glib::Threads::Mutex mutex;
100			#endif
101	persson	1456	static Glib::Dispatcher* dispatcher;
102			static GigEditState* current;
103
104			static void main_loop_run(Cond* intialized);
105			static void open_window_static();
106
107			GigEdit* parent;
108			Cond open;
109			Cond close;
110	schoenebeck	2474	Cond initialized;
111	persson	1456	gig::Instrument* instrument;
112
113			void open_window();
114			void close_window();
115	schoenebeck	2474	#if defined(__APPLE__)
116			static void runInCFMainLoop(void* info);
117			#endif
118	persson	1456	};
119
120	persson	1898	#ifdef WIN32
121			HINSTANCE gigedit_dll_handle = 0;
122			#endif
123
124	persson	2470	#ifdef __APPLE__
125			std::string gigedit_localedir;
126			#endif
127
128	persson	1456	void init_app() {
129	schoenebeck	1333	static bool process_initialized = false;
130			if (!process_initialized) {
131			std::cout << "Initializing 3rd party services needed by gigedit.\n"
132			<< std::flush;
133			setlocale(LC_ALL, "");
134	schoenebeck	1396
135	persson	2470	#ifdef __APPLE__
136			// Look for pango.modules, gdk-pixbuf.loaders and locale files
137			// under the same dir as the gigedit dylib is installed in.
138			Dl_info info;
139			if (dladdr((void*)&init_app, &info)) {
140			std::string libdir = Glib::path_get_dirname(info.dli_fname);
141
142			if (Glib::getenv("PANGO_SYSCONFDIR") == "" &&
143			Glib::file_test(Glib::build_filename(libdir,
144			"pango/pango.modules"),
145			Glib::FILE_TEST_EXISTS)) {
146			Glib::setenv("PANGO_SYSCONFDIR", libdir, true);
147			}
148			if (Glib::getenv("GDK_PIXBUF_MODULE_FILE") == "") {
149			std::string module_file =
150			Glib::build_filename(libdir,
151			"gtk-2.0/gdk-pixbuf.loaders");
152			if (Glib::file_test(module_file, Glib::FILE_TEST_EXISTS)) {
153			Glib::setenv("GDK_PIXBUF_MODULE_FILE", module_file, true);
154			}
155			}
156	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
157			//#if HAVE_GETTEXT
158	persson	2470	std::string localedir = Glib::build_filename(libdir, "locale");
159			if (Glib::file_test(localedir, Glib::FILE_TEST_EXISTS)) {
160			gigedit_localedir = localedir;
161			bindtextdomain(GETTEXT_PACKAGE, gigedit_localedir.c_str());
162			} else {
163			bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
164			}
165	schoenebeck	2474	//#endif
166	persson	2470	}
167	persson	1823
168	persson	2470	// The gtk file dialog stores its recent files state in
169			// ~/.local/share
170			g_mkdir_with_parents(
171			Glib::build_filename(Glib::get_home_dir(),
172			".local/share").c_str(), 0777);
173	schoenebeck	2474	#endif // __APPLE__
174	persson	2470
175	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
176			#if (HAVE_GETTEXT \|\| defined(__APPLE__))
177	persson	2470
178	schoenebeck	2474	#ifdef WIN32
179			#if GLIB_CHECK_VERSION(2, 16, 0)
180	persson	1823	gchar* root =
181	persson	1898	g_win32_get_package_installation_directory_of_module(gigedit_dll_handle);
182	schoenebeck	2474	#else
183	persson	1823	gchar* root =
184			g_win32_get_package_installation_directory(NULL, NULL);
185	schoenebeck	2474	#endif
186	persson	1823	gchar* temp = g_build_filename(root, "/share/locale", NULL);
187			g_free(root);
188			gchar* localedir = g_win32_locale_filename_from_utf8(temp);
189			g_free(temp);
190			bindtextdomain(GETTEXT_PACKAGE, localedir);
191			g_free(localedir);
192	schoenebeck	2474	#elif !defined(__APPLE__)
193	schoenebeck	1333	bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
194	schoenebeck	2474	#endif
195	schoenebeck	1333	bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
196			textdomain(GETTEXT_PACKAGE);
197	schoenebeck	1396	#endif // HAVE_GETTEXT
198
199	persson	2325	#ifdef OLD_THREADS
200	schoenebeck	1333	// make sure thread_init() is called once and ONLY once per process
201			if (!Glib::thread_supported()) Glib::thread_init();
202	persson	2325	#endif
203	schoenebeck	1333	process_initialized = true;
204			}
205	schoenebeck	1225	}
206
207	persson	1456	void connect_signals(GigEdit* gigedit, MainWindow* mainwindow) {
208	schoenebeck	1322	// the signals of the "GigEdit" class are actually just proxies, that
209			// is they simply forward the signals of the internal classes to the
210			// outer world
211			mainwindow->signal_file_structure_to_be_changed().connect(
212			gigedit->signal_file_structure_to_be_changed().make_slot()
213			);
214			mainwindow->signal_file_structure_changed().connect(
215			gigedit->signal_file_structure_changed().make_slot()
216			);
217			mainwindow->signal_samples_to_be_removed().connect(
218			gigedit->signal_samples_to_be_removed().make_slot()
219			);
220			mainwindow->signal_samples_removed().connect(
221			gigedit->signal_samples_removed().make_slot()
222			);
223			mainwindow->signal_region_to_be_changed().connect(
224			gigedit->signal_region_to_be_changed().make_slot()
225			);
226			mainwindow->signal_region_changed().connect(
227			gigedit->signal_region_changed().make_slot()
228			);
229			mainwindow->signal_dimreg_to_be_changed().connect(
230			gigedit->signal_dimreg_to_be_changed().make_slot()
231			);
232			mainwindow->signal_dimreg_changed().connect(
233			gigedit->signal_dimreg_changed().make_slot()
234			);
235	schoenebeck	1853	mainwindow->signal_sample_changed().connect(
236			gigedit->signal_sample_changed().make_slot()
237			);
238	schoenebeck	1322	mainwindow->signal_sample_ref_changed().connect(
239			gigedit->signal_sample_ref_changed().make_slot()
240			);
241	schoenebeck	1660	mainwindow->signal_keyboard_key_hit().connect(
242			gigedit->signal_keyboard_key_hit().make_slot()
243			);
244			mainwindow->signal_keyboard_key_released().connect(
245			gigedit->signal_keyboard_key_released().make_slot()
246			);
247	schoenebeck	2689	mainwindow->signal_switch_sampler_instrument().connect(
248			gigedit->signal_switch_sampler_instrument().make_slot()
249			);
250	schoenebeck	1322	}
251
252	schoenebeck	1654	} // namespace
253
254			GigEdit::GigEdit() {
255			state = NULL;
256	schoenebeck	1225	}
257
258	persson	1456	int GigEdit::run(int argc, char* argv[]) {
259			init_app();
260
261			Gtk::Main kit(argc, argv);
262	persson	2470
263	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
264			#if (/HAVE_GETTEXT &&/ defined(__APPLE__))
265	persson	2470	// Gtk::Main binds the gtk locale to a possible non-existent
266			// directory. If we have bundled gtk locale files, we rebind here,
267			// after the Gtk::Main constructor.
268			if (!gigedit_localedir.empty()) {
269			bindtextdomain("gtk20", gigedit_localedir.c_str());
270			}
271			#endif
272
273	schoenebeck	1225	MainWindow window;
274	persson	1456	connect_signals(this, &window);
275			if (argc >= 2) window.load_file(argv[1]);
276	schoenebeck	1225	kit.run(window);
277			return 0;
278			}
279
280			int GigEdit::run(gig::Instrument* pInstrument) {
281	persson	1456	init_app();
282
283			GigEditState state(this);
284	schoenebeck	1654	this->state = &state;
285	persson	1456	state.run(pInstrument);
286	schoenebeck	1654	this->state = NULL;
287	schoenebeck	1225	return 0;
288			}
289	schoenebeck	1322
290	schoenebeck	1654	void GigEdit::on_note_on_event(int key, int velocity) {
291			if (!this->state) return;
292	persson	2841	GigEditState* state = static_cast<GigEditState*>(this->state);
293	schoenebeck	1654	state->window->signal_note_on().emit(key, velocity);
294			}
295
296			void GigEdit::on_note_off_event(int key, int velocity) {
297			if (!this->state) return;
298	persson	2841	GigEditState* state = static_cast<GigEditState*>(this->state);
299	schoenebeck	1654	state->window->signal_note_off().emit(key, velocity);
300			}
301
302	schoenebeck	1339	sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_to_be_changed() {
303	schoenebeck	1322	return file_structure_to_be_changed_signal;
304			}
305
306	schoenebeck	1339	sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_changed() {
307	schoenebeck	1322	return file_structure_changed_signal;
308			}
309
310	schoenebeck	1339	sigc::signal<void, std::list<gig::Sample*> >& GigEdit::signal_samples_to_be_removed() {
311	schoenebeck	1322	return samples_to_be_removed_signal;
312			}
313
314	schoenebeck	1339	sigc::signal<void>& GigEdit::signal_samples_removed() {
315	schoenebeck	1322	return samples_removed_signal;
316			}
317
318	schoenebeck	1339	sigc::signal<void, gig::Region*>& GigEdit::signal_region_to_be_changed() {
319	schoenebeck	1322	return region_to_be_changed_signal;
320			}
321
322	schoenebeck	1339	sigc::signal<void, gig::Region*>& GigEdit::signal_region_changed() {
323	schoenebeck	1322	return region_changed_signal;
324			}
325
326	schoenebeck	1339	sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_to_be_changed() {
327	schoenebeck	1322	return dimreg_to_be_changed_signal;
328			}
329
330	schoenebeck	1339	sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_changed() {
331	schoenebeck	1322	return dimreg_changed_signal;
332			}
333
334	schoenebeck	1853	sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() {
335			return sample_changed_signal;
336			}
337
338	schoenebeck	1339	sigc::signal<void, gig::Sample/old/, gig::Sample/new/>& GigEdit::signal_sample_ref_changed() {
339	schoenebeck	1322	return sample_ref_changed_signal;
340			}
341	persson	1456
342	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/>& GigEdit::signal_keyboard_key_hit() {
343			return keyboard_key_hit_signal;
344			}
345	persson	1456
346	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/>& GigEdit::signal_keyboard_key_released() {
347			return keyboard_key_released_signal;
348			}
349
350	schoenebeck	2689	sigc::signal<void, gig::Instrument*>& GigEdit::signal_switch_sampler_instrument() {
351			return switch_sampler_instrument_signal;
352			}
353
354	persson	2325	#ifdef OLD_THREADS
355	persson	1456	Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
356	persson	2325	#else
357			Glib::Threads::Mutex GigEditState::mutex;
358			#endif
359	persson	1456	Glib::Dispatcher* GigEditState::dispatcher = 0;
360			GigEditState* GigEditState::current = 0;
361
362			void GigEditState::open_window_static() {
363			GigEditState* c = GigEditState::current;
364			c->open.signal();
365			c->open_window();
366			}
367
368			void GigEditState::open_window() {
369			window = new MainWindow();
370
371			connect_signals(parent, window);
372			if (instrument) window->load_instrument(instrument);
373
374			window->signal_hide().connect(sigc::mem_fun(this,
375			&GigEditState::close_window));
376			window->present();
377			}
378
379			void GigEditState::close_window() {
380			delete window;
381			close.signal();
382			}
383
384			void GigEditState::main_loop_run(Cond* initialized) {
385			int argc = 1;
386			const char* argv_c[] = { "gigedit" };
387			char argv = const_cast<char>(argv_c);
388			Gtk::Main main_loop(argc, argv);
389	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
390			#if (/HAVE_GETTEXT &&/ defined(__APPLE__))
391	persson	2470	if (!gigedit_localedir.empty()) {
392			bindtextdomain("gtk20", gigedit_localedir.c_str());
393			}
394			#endif
395	persson	1456
396			dispatcher = new Glib::Dispatcher();
397			dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
398			initialized->signal();
399
400			main_loop.run();
401			}
402
403	schoenebeck	2474	#if defined(__APPLE__)
404
405			void GigEditState::runInCFMainLoop(void* info) {
406			printf("runInCFMainLoop() entered\n"); fflush(stdout);
407			GigEditState* state = static_cast<GigEditState*>(info);
408			state->main_loop_run(
409			&state->initialized
410			);
411			printf("runInCFMainLoop() left\n"); fflush(stdout);
412			}
413
414			#endif // __APPLE__
415
416	persson	1456	void GigEditState::run(gig::Instrument* pInstrument) {
417			mutex.lock(); // lock access to static variables
418
419			static bool main_loop_started = false;
420	schoenebeck	2664	instrument = pInstrument;
421	persson	1456	if (!main_loop_started) {
422	persson	2841	#if defined(__APPLE__) && HAVE_LINUXSAMPLER
423	schoenebeck	2474	// spawn GUI on main thread :
424			// On OS X the Gtk GUI can only be launched on a process's "main"
425			// thread. When trying to launch the Gtk GUI on any other thread,
426			// there will only be a white box, because the GUI would not receive
427			// any events, since it would listen to the wrong system event loop.
428			// So far we haven't investigated whether there is any kind of
429			// circumvention to allow doing that also on other OS X threads.
430			{
431			// In case the sampler was launched as standalone sampler (not as
432			// plugin), use the following global callback variable hack ...
433			if (g_mainThreadCallbackSupported) {
434			printf("Setting callback ...\n"); fflush(stdout);
435			g_mainThreadCallback = runInCFMainLoop;
436			g_mainThreadCallbackInfo = this;
437			g_fireMainThreadCallback = true;
438			printf("Callback variables set.\n"); fflush(stdout);
439			} else { // Sampler was launched as (i.e. AU / VST) plugin ...
440			// When the sampler was launched as plugin, we have no idea
441			// whether any sampler thread is the process's "main" thread.
442			// So that's why we are trying to use Apple's API for trying to
443			// launch our callback function on the process's main thread.
444			// However this will only work, if the plugin host application
445			// established a CF event loop, that is if the application is
446			// using Cocoa for its GUI. For other host applications the
447			// callback will never be executed and thus gigedit would not
448			// popup.
449
450			// should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread()
451			/*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext();
452			sourceContext.info = this;
453			sourceContext.perform = runInCFMainLoop;
454			printf("CFRunLoopSourceCreate\n"); fflush(stdout);
455			CFRunLoopSourceRef source = CFRunLoopSourceCreate(
456			kCFAllocatorDefault, // allocator
457			1, // priority
458			&sourceContext
459			);
460			printf("CFRunLoopAddSource\n"); fflush(stdout);
461			CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode);
462			CFRelease(source);*/
463
464			// use Apple's Objective-C API to call our callback function
465			// 'runInCFMainLoop()' on the process's "main" thread
466			macHelperRunCFuncOnMainThread(runInCFMainLoop, this);
467			}
468			}
469			#else
470			#ifdef OLD_THREADS
471	persson	2332	Glib::Thread::create(
472	persson	1456	sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
473			&initialized),
474			false);
475	schoenebeck	2474	#else
476	persson	2332	Glib::Threads::Thread::create(
477			sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
478			&initialized));
479	schoenebeck	2474	#endif
480	persson	2332	#endif
481	schoenebeck	2474	printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout);
482	persson	1456	initialized.wait();
483	schoenebeck	2474	printf("GUI is now initialized. Everything done.\n"); fflush(stdout);
484	persson	1456	main_loop_started = true;
485			}
486			current = this;
487			dispatcher->emit();
488			open.wait(); // wait until the GUI thread has read current
489			mutex.unlock();
490			close.wait(); // sleep until window is closed
491			}
492	persson	1898
493			#if defined(WIN32)
494			extern "C" {
495			BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
496			{
497			switch (reason) {
498			case DLL_PROCESS_ATTACH:
499			gigedit_dll_handle = instance;
500			break;
501			}
502			return TRUE;
503			}
504			}
505			#endif