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/* |
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* Copyright (C) 2007-2015 Andreas Persson |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with program; see the file COPYING. If not, write to the Free |
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
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* 02110-1301 USA. |
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*/ |
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|
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#include <glibmmconfig.h> |
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// threads.h must be included first to be able to build with |
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// G_DISABLE_DEPRECATED |
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#if (GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION == 31 && GLIBMM_MICRO_VERSION >= 2) || \ |
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(GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION > 31) || GLIBMM_MAJOR_VERSION > 2 |
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#include <glibmm/threads.h> |
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#endif |
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|
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#include "gigedit.h" |
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|
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#include <gtkmmconfig.h> |
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#if GTKMM_MAJOR_VERSION < 3 |
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#include <gdkmm/region.h> |
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#endif |
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#include <glibmm/dispatcher.h> |
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#include <glibmm/main.h> |
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#include <gtkmm/main.h> |
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|
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#if defined(__APPLE__) |
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# include <CoreFoundation/CoreFoundation.h> |
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# include "MacHelper.h" |
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#endif |
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|
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#include "mainwindow.h" |
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|
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#include "global.h" |
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|
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#ifdef __APPLE__ |
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#include <dlfcn.h> |
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#include <glibmm/fileutils.h> |
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#include <glibmm/miscutils.h> |
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#endif |
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|
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//TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments below in this file for details) |
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#if defined(__APPLE__) && HAVE_LINUXSAMPLER // the following global external variables are defined in LinuxSampler's global_private.cpp ... |
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extern bool g_mainThreadCallbackSupported; |
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extern void (*g_mainThreadCallback)(void* info); |
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extern void* g_mainThreadCallbackInfo; |
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extern bool g_fireMainThreadCallback; |
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#endif |
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|
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namespace { |
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|
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// 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) : |
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window(0), parent(parent), instrument(0) { } |
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void run(gig::Instrument* pInstrument); |
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|
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MainWindow* window; |
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|
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private: |
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|
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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::Threads::Mutex mutex; |
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Glib::Threads::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::Threads::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::Threads::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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|
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#ifdef OLD_THREADS |
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static Glib::StaticMutex mutex; |
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#else |
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static Glib::Threads::Mutex mutex; |
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#endif |
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static Glib::Dispatcher* dispatcher; |
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static GigEditState* current; |
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|
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static void main_loop_run(Cond* intialized); |
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static void open_window_static(); |
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|
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GigEdit* parent; |
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Cond open; |
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Cond close; |
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Cond initialized; |
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gig::Instrument* instrument; |
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|
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void open_window(); |
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void close_window(); |
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#if defined(__APPLE__) |
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static void runInCFMainLoop(void* info); |
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#endif |
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}; |
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|
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#ifdef WIN32 |
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HINSTANCE gigedit_dll_handle = 0; |
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#endif |
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|
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#ifdef __APPLE__ |
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std::string gigedit_localedir; |
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#endif |
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|
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void init_app() { |
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static bool process_initialized = false; |
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if (!process_initialized) { |
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std::cout << "Initializing 3rd party services needed by gigedit.\n" |
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<< std::flush; |
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setlocale(LC_ALL, ""); |
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|
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#ifdef __APPLE__ |
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// Look for pango.modules, gdk-pixbuf.loaders and locale files |
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// under the same dir as the gigedit dylib is installed in. |
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Dl_info info; |
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if (dladdr((void*)&init_app, &info)) { |
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std::string libdir = Glib::path_get_dirname(info.dli_fname); |
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|
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if (Glib::getenv("PANGO_SYSCONFDIR") == "" && |
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Glib::file_test(Glib::build_filename(libdir, |
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"pango/pango.modules"), |
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Glib::FILE_TEST_EXISTS)) { |
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Glib::setenv("PANGO_SYSCONFDIR", libdir, true); |
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} |
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if (Glib::getenv("GDK_PIXBUF_MODULE_FILE") == "") { |
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std::string module_file = |
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Glib::build_filename(libdir, |
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"gtk-2.0/gdk-pixbuf.loaders"); |
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if (Glib::file_test(module_file, Glib::FILE_TEST_EXISTS)) { |
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Glib::setenv("GDK_PIXBUF_MODULE_FILE", module_file, true); |
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} |
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} |
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//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler? |
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//#if HAVE_GETTEXT |
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std::string localedir = Glib::build_filename(libdir, "locale"); |
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if (Glib::file_test(localedir, Glib::FILE_TEST_EXISTS)) { |
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gigedit_localedir = localedir; |
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bindtextdomain(GETTEXT_PACKAGE, gigedit_localedir.c_str()); |
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} else { |
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bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR); |
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} |
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//#endif |
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} |
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|
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// The gtk file dialog stores its recent files state in |
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// ~/.local/share |
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g_mkdir_with_parents( |
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Glib::build_filename(Glib::get_home_dir(), |
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".local/share").c_str(), 0777); |
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#endif // __APPLE__ |
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|
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//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler? |
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#if (HAVE_GETTEXT || defined(__APPLE__)) |
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|
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#ifdef WIN32 |
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#if GLIB_CHECK_VERSION(2, 16, 0) |
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gchar* root = |
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g_win32_get_package_installation_directory_of_module(gigedit_dll_handle); |
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#else |
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gchar* root = |
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g_win32_get_package_installation_directory(NULL, NULL); |
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#endif |
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gchar* temp = g_build_filename(root, "/share/locale", NULL); |
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g_free(root); |
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gchar* localedir = g_win32_locale_filename_from_utf8(temp); |
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g_free(temp); |
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bindtextdomain(GETTEXT_PACKAGE, localedir); |
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g_free(localedir); |
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#elif !defined(__APPLE__) |
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bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR); |
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#endif |
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bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8"); |
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textdomain(GETTEXT_PACKAGE); |
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#endif // HAVE_GETTEXT |
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|
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#ifdef OLD_THREADS |
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// make sure thread_init() is called once and ONLY once per process |
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if (!Glib::thread_supported()) Glib::thread_init(); |
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#endif |
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process_initialized = true; |
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} |
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} |
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|
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void connect_signals(GigEdit* gigedit, MainWindow* mainwindow) { |
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// 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 |
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// outer world |
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mainwindow->signal_file_structure_to_be_changed().connect( |
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gigedit->signal_file_structure_to_be_changed().make_slot() |
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); |
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mainwindow->signal_file_structure_changed().connect( |
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gigedit->signal_file_structure_changed().make_slot() |
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); |
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mainwindow->signal_samples_to_be_removed().connect( |
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gigedit->signal_samples_to_be_removed().make_slot() |
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); |
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mainwindow->signal_samples_removed().connect( |
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gigedit->signal_samples_removed().make_slot() |
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); |
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mainwindow->signal_region_to_be_changed().connect( |
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gigedit->signal_region_to_be_changed().make_slot() |
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); |
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mainwindow->signal_region_changed().connect( |
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gigedit->signal_region_changed().make_slot() |
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); |
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mainwindow->signal_dimreg_to_be_changed().connect( |
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gigedit->signal_dimreg_to_be_changed().make_slot() |
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); |
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mainwindow->signal_dimreg_changed().connect( |
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gigedit->signal_dimreg_changed().make_slot() |
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); |
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mainwindow->signal_sample_changed().connect( |
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gigedit->signal_sample_changed().make_slot() |
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); |
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mainwindow->signal_sample_ref_changed().connect( |
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gigedit->signal_sample_ref_changed().make_slot() |
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); |
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mainwindow->signal_keyboard_key_hit().connect( |
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gigedit->signal_keyboard_key_hit().make_slot() |
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); |
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mainwindow->signal_keyboard_key_released().connect( |
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gigedit->signal_keyboard_key_released().make_slot() |
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); |
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mainwindow->signal_switch_sampler_instrument().connect( |
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gigedit->signal_switch_sampler_instrument().make_slot() |
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); |
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} |
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|
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} // namespace |
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|
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GigEdit::GigEdit() { |
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state = NULL; |
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} |
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|
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int GigEdit::run(int argc, char* argv[]) { |
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init_app(); |
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|
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Gtk::Main kit(argc, argv); |
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|
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//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler? |
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#if (/*HAVE_GETTEXT &&*/ defined(__APPLE__)) |
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// Gtk::Main binds the gtk locale to a possible non-existent |
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// directory. If we have bundled gtk locale files, we rebind here, |
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// after the Gtk::Main constructor. |
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if (!gigedit_localedir.empty()) { |
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bindtextdomain("gtk20", gigedit_localedir.c_str()); |
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} |
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#endif |
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|
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MainWindow window; |
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connect_signals(this, &window); |
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if (argc >= 2) window.load_file(argv[1]); |
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kit.run(window); |
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return 0; |
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} |
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|
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int GigEdit::run(gig::Instrument* pInstrument) { |
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init_app(); |
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|
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GigEditState state(this); |
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this->state = &state; |
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state.run(pInstrument); |
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this->state = NULL; |
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return 0; |
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} |
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|
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void GigEdit::on_note_on_event(int key, int velocity) { |
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if (!this->state) return; |
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GigEditState* state = static_cast<GigEditState*>(this->state); |
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state->window->signal_note_on().emit(key, velocity); |
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} |
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|
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void GigEdit::on_note_off_event(int key, int velocity) { |
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if (!this->state) return; |
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GigEditState* state = static_cast<GigEditState*>(this->state); |
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state->window->signal_note_off().emit(key, velocity); |
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} |
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|
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sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_to_be_changed() { |
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return file_structure_to_be_changed_signal; |
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} |
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|
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sigc::signal<void, gig::File*>& GigEdit::signal_file_structure_changed() { |
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return file_structure_changed_signal; |
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} |
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|
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sigc::signal<void, std::list<gig::Sample*> >& GigEdit::signal_samples_to_be_removed() { |
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return samples_to_be_removed_signal; |
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} |
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|
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sigc::signal<void>& GigEdit::signal_samples_removed() { |
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return samples_removed_signal; |
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} |
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|
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sigc::signal<void, gig::Region*>& GigEdit::signal_region_to_be_changed() { |
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return region_to_be_changed_signal; |
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} |
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|
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sigc::signal<void, gig::Region*>& GigEdit::signal_region_changed() { |
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return region_changed_signal; |
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} |
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|
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sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_to_be_changed() { |
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return dimreg_to_be_changed_signal; |
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} |
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|
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sigc::signal<void, gig::DimensionRegion*>& GigEdit::signal_dimreg_changed() { |
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return dimreg_changed_signal; |
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} |
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|
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sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() { |
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return sample_changed_signal; |
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} |
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|
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sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/>& GigEdit::signal_sample_ref_changed() { |
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return sample_ref_changed_signal; |
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} |
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|
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sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_hit() { |
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return keyboard_key_hit_signal; |
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} |
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|
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sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_released() { |
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return keyboard_key_released_signal; |
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} |
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|
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sigc::signal<void, gig::Instrument*>& GigEdit::signal_switch_sampler_instrument() { |
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return switch_sampler_instrument_signal; |
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} |
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|
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#ifdef OLD_THREADS |
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Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT; |
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#else |
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Glib::Threads::Mutex GigEditState::mutex; |
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#endif |
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Glib::Dispatcher* GigEditState::dispatcher = 0; |
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GigEditState* GigEditState::current = 0; |
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|
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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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|
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void GigEditState::open_window() { |
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window = new MainWindow(); |
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|
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connect_signals(parent, window); |
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if (instrument) window->load_instrument(instrument); |
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|
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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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|
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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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|
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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); |
| 393 |
//FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler? |
| 394 |
#if (/*HAVE_GETTEXT &&*/ defined(__APPLE__)) |
| 395 |
if (!gigedit_localedir.empty()) { |
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bindtextdomain("gtk20", gigedit_localedir.c_str()); |
| 397 |
} |
| 398 |
#endif |
| 399 |
|
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dispatcher = new Glib::Dispatcher(); |
| 401 |
dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static)); |
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initialized->signal(); |
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|
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main_loop.run(); |
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} |
| 406 |
|
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#if defined(__APPLE__) |
| 408 |
|
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void GigEditState::runInCFMainLoop(void* info) { |
| 410 |
printf("runInCFMainLoop() entered\n"); fflush(stdout); |
| 411 |
GigEditState* state = static_cast<GigEditState*>(info); |
| 412 |
state->main_loop_run( |
| 413 |
&state->initialized |
| 414 |
); |
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printf("runInCFMainLoop() left\n"); fflush(stdout); |
| 416 |
} |
| 417 |
|
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#endif // __APPLE__ |
| 419 |
|
| 420 |
void GigEditState::run(gig::Instrument* pInstrument) { |
| 421 |
mutex.lock(); // lock access to static variables |
| 422 |
|
| 423 |
static bool main_loop_started = false; |
| 424 |
instrument = pInstrument; |
| 425 |
if (!main_loop_started) { |
| 426 |
#if defined(__APPLE__) && HAVE_LINUXSAMPLER |
| 427 |
// spawn GUI on main thread : |
| 428 |
// On OS X the Gtk GUI can only be launched on a process's "main" |
| 429 |
// thread. When trying to launch the Gtk GUI on any other thread, |
| 430 |
// there will only be a white box, because the GUI would not receive |
| 431 |
// any events, since it would listen to the wrong system event loop. |
| 432 |
// So far we haven't investigated whether there is any kind of |
| 433 |
// circumvention to allow doing that also on other OS X threads. |
| 434 |
{ |
| 435 |
// In case the sampler was launched as standalone sampler (not as |
| 436 |
// plugin), use the following global callback variable hack ... |
| 437 |
if (g_mainThreadCallbackSupported) { |
| 438 |
printf("Setting callback ...\n"); fflush(stdout); |
| 439 |
g_mainThreadCallback = runInCFMainLoop; |
| 440 |
g_mainThreadCallbackInfo = this; |
| 441 |
g_fireMainThreadCallback = true; |
| 442 |
printf("Callback variables set.\n"); fflush(stdout); |
| 443 |
} else { // Sampler was launched as (i.e. AU / VST) plugin ... |
| 444 |
// When the sampler was launched as plugin, we have no idea |
| 445 |
// whether any sampler thread is the process's "main" thread. |
| 446 |
// So that's why we are trying to use Apple's API for trying to |
| 447 |
// launch our callback function on the process's main thread. |
| 448 |
// However this will only work, if the plugin host application |
| 449 |
// established a CF event loop, that is if the application is |
| 450 |
// using Cocoa for its GUI. For other host applications the |
| 451 |
// callback will never be executed and thus gigedit would not |
| 452 |
// popup. |
| 453 |
|
| 454 |
// should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread() |
| 455 |
/*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext(); |
| 456 |
sourceContext.info = this; |
| 457 |
sourceContext.perform = runInCFMainLoop; |
| 458 |
printf("CFRunLoopSourceCreate\n"); fflush(stdout); |
| 459 |
CFRunLoopSourceRef source = CFRunLoopSourceCreate( |
| 460 |
kCFAllocatorDefault, // allocator |
| 461 |
1, // priority |
| 462 |
&sourceContext |
| 463 |
); |
| 464 |
printf("CFRunLoopAddSource\n"); fflush(stdout); |
| 465 |
CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode); |
| 466 |
CFRelease(source);*/ |
| 467 |
|
| 468 |
// use Apple's Objective-C API to call our callback function |
| 469 |
// 'runInCFMainLoop()' on the process's "main" thread |
| 470 |
macHelperRunCFuncOnMainThread(runInCFMainLoop, this); |
| 471 |
} |
| 472 |
} |
| 473 |
#else |
| 474 |
#ifdef OLD_THREADS |
| 475 |
Glib::Thread::create( |
| 476 |
sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run), |
| 477 |
&initialized), |
| 478 |
false); |
| 479 |
#else |
| 480 |
Glib::Threads::Thread::create( |
| 481 |
sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run), |
| 482 |
&initialized)); |
| 483 |
#endif |
| 484 |
#endif |
| 485 |
printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout); |
| 486 |
initialized.wait(); |
| 487 |
printf("GUI is now initialized. Everything done.\n"); fflush(stdout); |
| 488 |
main_loop_started = true; |
| 489 |
} |
| 490 |
current = this; |
| 491 |
dispatcher->emit(); |
| 492 |
open.wait(); // wait until the GUI thread has read current |
| 493 |
mutex.unlock(); |
| 494 |
close.wait(); // sleep until window is closed |
| 495 |
} |
| 496 |
|
| 497 |
#if defined(WIN32) |
| 498 |
extern "C" { |
| 499 |
BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved) |
| 500 |
{ |
| 501 |
switch (reason) { |
| 502 |
case DLL_PROCESS_ATTACH: |
| 503 |
gigedit_dll_handle = instance; |
| 504 |
break; |
| 505 |
} |
| 506 |
return TRUE; |
| 507 |
} |
| 508 |
} |
| 509 |
#endif |
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