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#include "global.h" |
#include "global.h" |
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// the app has to work from a DLL as well, so we hard code argv |
namespace { |
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int argc = 1; |
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const char* argv_c[] = { "gigedit" }; |
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char** argv = const_cast<char**>(argv_c); |
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//FIXME: Gtk only allows to instantiate one Gtk::Main object per process, so this might crash other Gtk applications, i.e. launched as plugins by LinuxSampler |
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Gtk::Main kit(argc, argv); |
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static void __init_app() { |
// State for a gigedit thread. |
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// |
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// This class is only used when gigedit is run as a plugin and makes |
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// sure that there's only one Gtk::Main event loop. The event loop is |
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// started in a separate thread. The plugin thread just dispatches an |
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// event to the main loop to open a window and then goes to sleep |
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// until the window is closed. |
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// |
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class GigEditState : public sigc::trackable { |
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public: |
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GigEditState(GigEdit* parent) : parent(parent) { } |
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void run(gig::Instrument* pInstrument); |
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private: |
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// simple condition variable abstraction |
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class Cond { |
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private: |
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bool pred; |
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Glib::Mutex mutex; |
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Glib::Cond cond; |
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public: |
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Cond() : pred(false) { } |
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void signal() { |
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Glib::Mutex::Lock lock(mutex); |
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pred = true; |
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cond.signal(); |
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} |
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void wait() { |
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Glib::Mutex::Lock lock(mutex); |
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while (!pred) cond.wait(mutex); |
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} |
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}; |
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static Glib::StaticMutex mutex; |
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static Glib::Dispatcher* dispatcher; |
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static GigEditState* current; |
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static void main_loop_run(Cond* intialized); |
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static void open_window_static(); |
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GigEdit* parent; |
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Cond open; |
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Cond close; |
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gig::Instrument* instrument; |
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MainWindow* window; |
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void open_window(); |
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void close_window(); |
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}; |
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void init_app() { |
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static bool process_initialized = false; |
static bool process_initialized = false; |
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if (!process_initialized) { |
if (!process_initialized) { |
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std::cout << "Initializing 3rd party services needed by gigedit.\n" |
std::cout << "Initializing 3rd party services needed by gigedit.\n" |
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} |
} |
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} |
} |
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static void __connect_signals(GigEdit* gigedit, MainWindow* mainwindow) { |
void connect_signals(GigEdit* gigedit, MainWindow* mainwindow) { |
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// the signals of the "GigEdit" class are actually just proxies, that |
// the signals of the "GigEdit" class are actually just proxies, that |
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// is they simply forward the signals of the internal classes to the |
// is they simply forward the signals of the internal classes to the |
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// outer world |
// outer world |
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); |
); |
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} |
} |
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int GigEdit::run() { |
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__init_app(); |
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MainWindow window; |
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__connect_signals(this, &window); |
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kit.run(window); |
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return 0; |
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} |
} |
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int GigEdit::run(const char* pFileName) { |
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__init_app(); |
int GigEdit::run(int argc, char* argv[]) { |
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init_app(); |
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Gtk::Main kit(argc, argv); |
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MainWindow window; |
MainWindow window; |
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__connect_signals(this, &window); |
connect_signals(this, &window); |
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if (pFileName) window.load_file(pFileName); |
if (argc >= 2) window.load_file(argv[1]); |
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kit.run(window); |
kit.run(window); |
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return 0; |
return 0; |
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} |
} |
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int GigEdit::run(gig::Instrument* pInstrument) { |
int GigEdit::run(gig::Instrument* pInstrument) { |
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__init_app(); |
init_app(); |
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MainWindow window; |
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__connect_signals(this, &window); |
GigEditState state(this); |
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if (pInstrument) window.load_instrument(pInstrument); |
state.run(pInstrument); |
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kit.run(window); |
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return 0; |
return 0; |
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} |
} |
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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() { |
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return sample_ref_changed_signal; |
return sample_ref_changed_signal; |
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} |
} |
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Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT; |
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Glib::Dispatcher* GigEditState::dispatcher = 0; |
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GigEditState* GigEditState::current = 0; |
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void GigEditState::open_window_static() { |
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GigEditState* c = GigEditState::current; |
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c->open.signal(); |
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c->open_window(); |
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} |
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void GigEditState::open_window() { |
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window = new MainWindow(); |
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connect_signals(parent, window); |
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if (instrument) window->load_instrument(instrument); |
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window->signal_hide().connect(sigc::mem_fun(this, |
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&GigEditState::close_window)); |
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window->present(); |
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} |
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void GigEditState::close_window() { |
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delete window; |
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close.signal(); |
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} |
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void GigEditState::main_loop_run(Cond* initialized) { |
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int argc = 1; |
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const char* argv_c[] = { "gigedit" }; |
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char** argv = const_cast<char**>(argv_c); |
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Gtk::Main main_loop(argc, argv); |
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dispatcher = new Glib::Dispatcher(); |
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dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static)); |
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initialized->signal(); |
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main_loop.run(); |
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} |
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void GigEditState::run(gig::Instrument* pInstrument) { |
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mutex.lock(); // lock access to static variables |
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static bool main_loop_started = false; |
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if (!main_loop_started) { |
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Cond initialized; |
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Glib::Thread::create( |
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sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run), |
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&initialized), |
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false); |
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initialized.wait(); |
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main_loop_started = true; |
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} |
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instrument = pInstrument; |
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current = this; |
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dispatcher->emit(); |
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open.wait(); // wait until the GUI thread has read current |
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mutex.unlock(); |
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close.wait(); // sleep until window is closed |
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} |