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 <gtkmmconfig.h>
#if GTKMM_MAJOR_VERSION < 3
#include <gdkmm/region.h>
#endif
#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()
    );
    mainwindow->signal_script_to_be_changed.connect(
        gigedit->signal_script_to_be_changed.make_slot()
    );
    mainwindow->signal_script_changed.connect(
        gigedit->signal_script_changed.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();
}

#if defined(WIN32) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
// make sure stack is 16-byte aligned for SSE instructions
__attribute__((force_align_arg_pointer))
#endif
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	2844	#include <gtkmmconfig.h>
31			#if GTKMM_MAJOR_VERSION < 3
32			#include <gdkmm/region.h>
33			#endif
34	persson	2325	#include <glibmm/dispatcher.h>
35			#include <glibmm/main.h>
36	schoenebeck	1225	#include <gtkmm/main.h>
37	persson	2325
38	schoenebeck	2474	#if defined(__APPLE__)
39			# include <CoreFoundation/CoreFoundation.h>
40			# include "MacHelper.h"
41			#endif
42
43	schoenebeck	1225	#include "mainwindow.h"
44
45	schoenebeck	1396	#include "global.h"
46	schoenebeck	1225
47	persson	2470	#ifdef __APPLE__
48			#include <dlfcn.h>
49			#include <glibmm/fileutils.h>
50			#include <glibmm/miscutils.h>
51			#endif
52
53	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)
54	persson	2841	#if defined(__APPLE__) && HAVE_LINUXSAMPLER // the following global external variables are defined in LinuxSampler's global_private.cpp ...
55	schoenebeck	2474	extern bool g_mainThreadCallbackSupported;
56			extern void (g_mainThreadCallback)(void info);
57			extern void* g_mainThreadCallbackInfo;
58			extern bool g_fireMainThreadCallback;
59			#endif
60
61	persson	1456	namespace {
62	schoenebeck	1225
63	persson	1456	// State for a gigedit thread.
64			//
65			// This class is only used when gigedit is run as a plugin and makes
66			// sure that there's only one Gtk::Main event loop. The event loop is
67			// started in a separate thread. The plugin thread just dispatches an
68			// event to the main loop to open a window and then goes to sleep
69			// until the window is closed.
70			//
71			class GigEditState : public sigc::trackable {
72			public:
73	persson	2841	GigEditState(GigEdit* parent) :
74			window(0), parent(parent), instrument(0) { }
75	persson	1456	void run(gig::Instrument* pInstrument);
76
77	schoenebeck	1654	MainWindow* window;
78
79	persson	1456	private:
80
81			// simple condition variable abstraction
82			class Cond {
83			private:
84			bool pred;
85	persson	2325	Glib::Threads::Mutex mutex;
86			Glib::Threads::Cond cond;
87	persson	1456	public:
88			Cond() : pred(false) { }
89			void signal() {
90	persson	2325	Glib::Threads::Mutex::Lock lock(mutex);
91	persson	1456	pred = true;
92			cond.signal();
93			}
94			void wait() {
95	persson	2325	Glib::Threads::Mutex::Lock lock(mutex);
96	persson	1456	while (!pred) cond.wait(mutex);
97			}
98			};
99
100	persson	2325	#ifdef OLD_THREADS
101	persson	1456	static Glib::StaticMutex mutex;
102	persson	2325	#else
103			static Glib::Threads::Mutex mutex;
104			#endif
105	persson	1456	static Glib::Dispatcher* dispatcher;
106			static GigEditState* current;
107
108			static void main_loop_run(Cond* intialized);
109			static void open_window_static();
110
111			GigEdit* parent;
112			Cond open;
113			Cond close;
114	schoenebeck	2474	Cond initialized;
115	persson	1456	gig::Instrument* instrument;
116
117			void open_window();
118			void close_window();
119	schoenebeck	2474	#if defined(__APPLE__)
120			static void runInCFMainLoop(void* info);
121			#endif
122	persson	1456	};
123
124	persson	1898	#ifdef WIN32
125			HINSTANCE gigedit_dll_handle = 0;
126			#endif
127
128	persson	2470	#ifdef __APPLE__
129			std::string gigedit_localedir;
130			#endif
131
132	persson	1456	void init_app() {
133	schoenebeck	1333	static bool process_initialized = false;
134			if (!process_initialized) {
135			std::cout << "Initializing 3rd party services needed by gigedit.\n"
136			<< std::flush;
137			setlocale(LC_ALL, "");
138	schoenebeck	1396
139	persson	2470	#ifdef __APPLE__
140			// Look for pango.modules, gdk-pixbuf.loaders and locale files
141			// under the same dir as the gigedit dylib is installed in.
142			Dl_info info;
143			if (dladdr((void*)&init_app, &info)) {
144			std::string libdir = Glib::path_get_dirname(info.dli_fname);
145
146			if (Glib::getenv("PANGO_SYSCONFDIR") == "" &&
147			Glib::file_test(Glib::build_filename(libdir,
148			"pango/pango.modules"),
149			Glib::FILE_TEST_EXISTS)) {
150			Glib::setenv("PANGO_SYSCONFDIR", libdir, true);
151			}
152			if (Glib::getenv("GDK_PIXBUF_MODULE_FILE") == "") {
153			std::string module_file =
154			Glib::build_filename(libdir,
155			"gtk-2.0/gdk-pixbuf.loaders");
156			if (Glib::file_test(module_file, Glib::FILE_TEST_EXISTS)) {
157			Glib::setenv("GDK_PIXBUF_MODULE_FILE", module_file, true);
158			}
159			}
160	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
161			//#if HAVE_GETTEXT
162	persson	2470	std::string localedir = Glib::build_filename(libdir, "locale");
163			if (Glib::file_test(localedir, Glib::FILE_TEST_EXISTS)) {
164			gigedit_localedir = localedir;
165			bindtextdomain(GETTEXT_PACKAGE, gigedit_localedir.c_str());
166			} else {
167			bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
168			}
169	schoenebeck	2474	//#endif
170	persson	2470	}
171	persson	1823
172	persson	2470	// The gtk file dialog stores its recent files state in
173			// ~/.local/share
174			g_mkdir_with_parents(
175			Glib::build_filename(Glib::get_home_dir(),
176			".local/share").c_str(), 0777);
177	schoenebeck	2474	#endif // __APPLE__
178	persson	2470
179	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
180			#if (HAVE_GETTEXT \|\| defined(__APPLE__))
181	persson	2470
182	schoenebeck	2474	#ifdef WIN32
183			#if GLIB_CHECK_VERSION(2, 16, 0)
184	persson	1823	gchar* root =
185	persson	1898	g_win32_get_package_installation_directory_of_module(gigedit_dll_handle);
186	schoenebeck	2474	#else
187	persson	1823	gchar* root =
188			g_win32_get_package_installation_directory(NULL, NULL);
189	schoenebeck	2474	#endif
190	persson	1823	gchar* temp = g_build_filename(root, "/share/locale", NULL);
191			g_free(root);
192			gchar* localedir = g_win32_locale_filename_from_utf8(temp);
193			g_free(temp);
194			bindtextdomain(GETTEXT_PACKAGE, localedir);
195			g_free(localedir);
196	schoenebeck	2474	#elif !defined(__APPLE__)
197	schoenebeck	1333	bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
198	schoenebeck	2474	#endif
199	schoenebeck	1333	bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
200			textdomain(GETTEXT_PACKAGE);
201	schoenebeck	1396	#endif // HAVE_GETTEXT
202
203	persson	2325	#ifdef OLD_THREADS
204	schoenebeck	1333	// make sure thread_init() is called once and ONLY once per process
205			if (!Glib::thread_supported()) Glib::thread_init();
206	persson	2325	#endif
207	schoenebeck	1333	process_initialized = true;
208			}
209	schoenebeck	1225	}
210
211	persson	1456	void connect_signals(GigEdit* gigedit, MainWindow* mainwindow) {
212	schoenebeck	1322	// the signals of the "GigEdit" class are actually just proxies, that
213			// is they simply forward the signals of the internal classes to the
214			// outer world
215			mainwindow->signal_file_structure_to_be_changed().connect(
216			gigedit->signal_file_structure_to_be_changed().make_slot()
217			);
218			mainwindow->signal_file_structure_changed().connect(
219			gigedit->signal_file_structure_changed().make_slot()
220			);
221			mainwindow->signal_samples_to_be_removed().connect(
222			gigedit->signal_samples_to_be_removed().make_slot()
223			);
224			mainwindow->signal_samples_removed().connect(
225			gigedit->signal_samples_removed().make_slot()
226			);
227			mainwindow->signal_region_to_be_changed().connect(
228			gigedit->signal_region_to_be_changed().make_slot()
229			);
230			mainwindow->signal_region_changed().connect(
231			gigedit->signal_region_changed().make_slot()
232			);
233			mainwindow->signal_dimreg_to_be_changed().connect(
234			gigedit->signal_dimreg_to_be_changed().make_slot()
235			);
236			mainwindow->signal_dimreg_changed().connect(
237			gigedit->signal_dimreg_changed().make_slot()
238			);
239	schoenebeck	1853	mainwindow->signal_sample_changed().connect(
240			gigedit->signal_sample_changed().make_slot()
241			);
242	schoenebeck	1322	mainwindow->signal_sample_ref_changed().connect(
243			gigedit->signal_sample_ref_changed().make_slot()
244			);
245	schoenebeck	1660	mainwindow->signal_keyboard_key_hit().connect(
246			gigedit->signal_keyboard_key_hit().make_slot()
247			);
248			mainwindow->signal_keyboard_key_released().connect(
249			gigedit->signal_keyboard_key_released().make_slot()
250			);
251	schoenebeck	2689	mainwindow->signal_switch_sampler_instrument().connect(
252			gigedit->signal_switch_sampler_instrument().make_slot()
253			);
254	schoenebeck	2903	mainwindow->signal_script_to_be_changed.connect(
255			gigedit->signal_script_to_be_changed.make_slot()
256			);
257			mainwindow->signal_script_changed.connect(
258			gigedit->signal_script_changed.make_slot()
259			);
260	schoenebeck	1322	}
261
262	schoenebeck	1654	} // namespace
263
264			GigEdit::GigEdit() {
265			state = NULL;
266	schoenebeck	1225	}
267
268	persson	1456	int GigEdit::run(int argc, char* argv[]) {
269			init_app();
270
271			Gtk::Main kit(argc, argv);
272	persson	2470
273	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
274			#if (/HAVE_GETTEXT &&/ defined(__APPLE__))
275	persson	2470	// Gtk::Main binds the gtk locale to a possible non-existent
276			// directory. If we have bundled gtk locale files, we rebind here,
277			// after the Gtk::Main constructor.
278			if (!gigedit_localedir.empty()) {
279			bindtextdomain("gtk20", gigedit_localedir.c_str());
280			}
281			#endif
282
283	schoenebeck	1225	MainWindow window;
284	persson	1456	connect_signals(this, &window);
285			if (argc >= 2) window.load_file(argv[1]);
286	schoenebeck	1225	kit.run(window);
287			return 0;
288			}
289
290			int GigEdit::run(gig::Instrument* pInstrument) {
291	persson	1456	init_app();
292
293			GigEditState state(this);
294	schoenebeck	1654	this->state = &state;
295	persson	1456	state.run(pInstrument);
296	schoenebeck	1654	this->state = NULL;
297	schoenebeck	1225	return 0;
298			}
299	schoenebeck	1322
300	schoenebeck	1654	void GigEdit::on_note_on_event(int key, int velocity) {
301			if (!this->state) return;
302	persson	2841	GigEditState* state = static_cast<GigEditState*>(this->state);
303	schoenebeck	1654	state->window->signal_note_on().emit(key, velocity);
304			}
305
306			void GigEdit::on_note_off_event(int key, int velocity) {
307			if (!this->state) return;
308	persson	2841	GigEditState* state = static_cast<GigEditState*>(this->state);
309	schoenebeck	1654	state->window->signal_note_off().emit(key, velocity);
310			}
311
312	schoenebeck	1339	sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_to_be_changed() {
313	schoenebeck	1322	return file_structure_to_be_changed_signal;
314			}
315
316	schoenebeck	1339	sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_changed() {
317	schoenebeck	1322	return file_structure_changed_signal;
318			}
319
320	schoenebeck	1339	sigc::signal<void, std::list<gig::Sample*> >& GigEdit::signal_samples_to_be_removed() {
321	schoenebeck	1322	return samples_to_be_removed_signal;
322			}
323
324	schoenebeck	1339	sigc::signal<void>& GigEdit::signal_samples_removed() {
325	schoenebeck	1322	return samples_removed_signal;
326			}
327
328	schoenebeck	1339	sigc::signal<void, gig::Region*>& GigEdit::signal_region_to_be_changed() {
329	schoenebeck	1322	return region_to_be_changed_signal;
330			}
331
332	schoenebeck	1339	sigc::signal<void, gig::Region*>& GigEdit::signal_region_changed() {
333	schoenebeck	1322	return region_changed_signal;
334			}
335
336	schoenebeck	1339	sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_to_be_changed() {
337	schoenebeck	1322	return dimreg_to_be_changed_signal;
338			}
339
340	schoenebeck	1339	sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_changed() {
341	schoenebeck	1322	return dimreg_changed_signal;
342			}
343
344	schoenebeck	1853	sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() {
345			return sample_changed_signal;
346			}
347
348	schoenebeck	1339	sigc::signal<void, gig::Sample/old/, gig::Sample/new/>& GigEdit::signal_sample_ref_changed() {
349	schoenebeck	1322	return sample_ref_changed_signal;
350			}
351	persson	1456
352	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/>& GigEdit::signal_keyboard_key_hit() {
353			return keyboard_key_hit_signal;
354			}
355	persson	1456
356	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/>& GigEdit::signal_keyboard_key_released() {
357			return keyboard_key_released_signal;
358			}
359
360	schoenebeck	2689	sigc::signal<void, gig::Instrument*>& GigEdit::signal_switch_sampler_instrument() {
361			return switch_sampler_instrument_signal;
362			}
363
364	persson	2325	#ifdef OLD_THREADS
365	persson	1456	Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
366	persson	2325	#else
367			Glib::Threads::Mutex GigEditState::mutex;
368			#endif
369	persson	1456	Glib::Dispatcher* GigEditState::dispatcher = 0;
370			GigEditState* GigEditState::current = 0;
371
372			void GigEditState::open_window_static() {
373			GigEditState* c = GigEditState::current;
374			c->open.signal();
375			c->open_window();
376			}
377
378			void GigEditState::open_window() {
379			window = new MainWindow();
380
381			connect_signals(parent, window);
382			if (instrument) window->load_instrument(instrument);
383
384			window->signal_hide().connect(sigc::mem_fun(this,
385			&GigEditState::close_window));
386			window->present();
387			}
388
389			void GigEditState::close_window() {
390			delete window;
391			close.signal();
392			}
393
394	persson	3021	#if defined(WIN32) && (__GNUC__ > 4 \|\| (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
395			// make sure stack is 16-byte aligned for SSE instructions
396			__attribute__((force_align_arg_pointer))
397			#endif
398	persson	1456	void GigEditState::main_loop_run(Cond* initialized) {
399			int argc = 1;
400			const char* argv_c[] = { "gigedit" };
401			char argv = const_cast<char>(argv_c);
402			Gtk::Main main_loop(argc, argv);
403	schoenebeck	2474	//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
404			#if (/HAVE_GETTEXT &&/ defined(__APPLE__))
405	persson	2470	if (!gigedit_localedir.empty()) {
406			bindtextdomain("gtk20", gigedit_localedir.c_str());
407			}
408			#endif
409	persson	1456
410			dispatcher = new Glib::Dispatcher();
411			dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
412			initialized->signal();
413
414			main_loop.run();
415			}
416
417	schoenebeck	2474	#if defined(__APPLE__)
418
419			void GigEditState::runInCFMainLoop(void* info) {
420			printf("runInCFMainLoop() entered\n"); fflush(stdout);
421			GigEditState* state = static_cast<GigEditState*>(info);
422			state->main_loop_run(
423			&state->initialized
424			);
425			printf("runInCFMainLoop() left\n"); fflush(stdout);
426			}
427
428			#endif // __APPLE__
429
430	persson	1456	void GigEditState::run(gig::Instrument* pInstrument) {
431			mutex.lock(); // lock access to static variables
432
433			static bool main_loop_started = false;
434	schoenebeck	2664	instrument = pInstrument;
435	persson	1456	if (!main_loop_started) {
436	persson	2841	#if defined(__APPLE__) && HAVE_LINUXSAMPLER
437	schoenebeck	2474	// spawn GUI on main thread :
438			// On OS X the Gtk GUI can only be launched on a process's "main"
439			// thread. When trying to launch the Gtk GUI on any other thread,
440			// there will only be a white box, because the GUI would not receive
441			// any events, since it would listen to the wrong system event loop.
442			// So far we haven't investigated whether there is any kind of
443			// circumvention to allow doing that also on other OS X threads.
444			{
445			// In case the sampler was launched as standalone sampler (not as
446			// plugin), use the following global callback variable hack ...
447			if (g_mainThreadCallbackSupported) {
448			printf("Setting callback ...\n"); fflush(stdout);
449			g_mainThreadCallback = runInCFMainLoop;
450			g_mainThreadCallbackInfo = this;
451			g_fireMainThreadCallback = true;
452			printf("Callback variables set.\n"); fflush(stdout);
453			} else { // Sampler was launched as (i.e. AU / VST) plugin ...
454			// When the sampler was launched as plugin, we have no idea
455			// whether any sampler thread is the process's "main" thread.
456			// So that's why we are trying to use Apple's API for trying to
457			// launch our callback function on the process's main thread.
458			// However this will only work, if the plugin host application
459			// established a CF event loop, that is if the application is
460			// using Cocoa for its GUI. For other host applications the
461			// callback will never be executed and thus gigedit would not
462			// popup.
463
464			// should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread()
465			/*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext();
466			sourceContext.info = this;
467			sourceContext.perform = runInCFMainLoop;
468			printf("CFRunLoopSourceCreate\n"); fflush(stdout);
469			CFRunLoopSourceRef source = CFRunLoopSourceCreate(
470			kCFAllocatorDefault, // allocator
471			1, // priority
472			&sourceContext
473			);
474			printf("CFRunLoopAddSource\n"); fflush(stdout);
475			CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode);
476			CFRelease(source);*/
477
478			// use Apple's Objective-C API to call our callback function
479			// 'runInCFMainLoop()' on the process's "main" thread
480			macHelperRunCFuncOnMainThread(runInCFMainLoop, this);
481			}
482			}
483			#else
484			#ifdef OLD_THREADS
485	persson	2332	Glib::Thread::create(
486	persson	1456	sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
487			&initialized),
488			false);
489	schoenebeck	2474	#else
490	persson	2332	Glib::Threads::Thread::create(
491			sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
492			&initialized));
493	schoenebeck	2474	#endif
494	persson	2332	#endif
495	schoenebeck	2474	printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout);
496	persson	1456	initialized.wait();
497	schoenebeck	2474	printf("GUI is now initialized. Everything done.\n"); fflush(stdout);
498	persson	1456	main_loop_started = true;
499			}
500			current = this;
501			dispatcher->emit();
502			open.wait(); // wait until the GUI thread has read current
503			mutex.unlock();
504			close.wait(); // sleep until window is closed
505			}
506	persson	1898
507			#if defined(WIN32)
508			extern "C" {
509			BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
510			{
511			switch (reason) {
512			case DLL_PROCESS_ATTACH:
513			gigedit_dll_handle = instance;
514			break;
515			}
516			return TRUE;
517			}
518			}
519			#endif