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/* |
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* Copyright (C) 2007-2017 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 <glibmm/miscutils.h> |
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#include <gtkmm/main.h> |
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|
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#ifdef WIN32 |
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#include <gtkmm/icontheme.h> |
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#endif |
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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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#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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std::string gigedit_datadir; |
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bool gigedit_installdir_is_parent = false; |
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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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#ifdef CONFIG_FORCE_GTK_LIBDIR |
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std::string libdir = CONFIG_FORCE_GTK_LIBDIR; |
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#else |
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std::string libdir = Glib::path_get_dirname(info.dli_fname); |
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#endif |
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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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#ifdef WIN32 |
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// Find the data directory: the linuxsampler installer puts |
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// the binaries in sub directories "32" and "64", so the share |
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// directory is located in the parent of the directory of the |
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// binaries. |
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|
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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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std::string installdir(root); |
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g_free(root); |
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std::string basename = Glib::path_get_basename(installdir); |
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if (basename == "32" || basename == "64") { |
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installdir = Glib::path_get_dirname(installdir); |
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gigedit_installdir_is_parent = true; |
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} |
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gigedit_datadir = Glib::build_filename(installdir, "share"); |
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|
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// the file dialogs need glib-2.0/schemas/gschemas.compiled |
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if (gigedit_installdir_is_parent) { |
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Glib::setenv("GSETTINGS_SCHEMA_DIR", |
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Glib::build_filename(gigedit_datadir, |
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"glib-2.0/schemas")); |
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} |
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#endif |
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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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#ifdef WIN32 |
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std::string temp = Glib::build_filename(gigedit_datadir, "locale"); |
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gchar* localedir = g_win32_locale_filename_from_utf8(temp.c_str()); |
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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 init_app_after_gtk_init() { |
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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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#ifdef WIN32 |
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if (gigedit_installdir_is_parent) { |
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std::string icon_dir = Glib::build_filename(gigedit_datadir, "icons"); |
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Gtk::IconTheme::get_default()->append_search_path(icon_dir); |
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} |
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#endif |
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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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mainwindow->signal_script_to_be_changed.connect( |
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gigedit->signal_script_to_be_changed.make_slot() |
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); |
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mainwindow->signal_script_changed.connect( |
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gigedit->signal_script_changed.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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init_app_after_gtk_init(); |
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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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} |
417 |
|
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void GigEditState::open_window() { |
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window = new MainWindow(); |
420 |
|
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connect_signals(parent, window); |
422 |
if (instrument) window->load_instrument(instrument); |
423 |
|
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window->signal_hide().connect(sigc::mem_fun(this, |
425 |
&GigEditState::close_window)); |
426 |
window->present(); |
427 |
} |
428 |
|
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void GigEditState::close_window() { |
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delete window; |
431 |
close.signal(); |
432 |
} |
433 |
|
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#if defined(WIN32) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2)) |
435 |
// make sure stack is 16-byte aligned for SSE instructions |
436 |
__attribute__((force_align_arg_pointer)) |
437 |
#endif |
438 |
void GigEditState::main_loop_run(Cond* initialized) { |
439 |
int argc = 1; |
440 |
const char* argv_c[] = { "gigedit" }; |
441 |
char** argv = const_cast<char**>(argv_c); |
442 |
Gtk::Main main_loop(argc, argv); |
443 |
init_app_after_gtk_init(); |
444 |
|
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dispatcher = new Glib::Dispatcher(); |
446 |
dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static)); |
447 |
initialized->signal(); |
448 |
|
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main_loop.run(); |
450 |
} |
451 |
|
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#if defined(__APPLE__) |
453 |
|
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void GigEditState::runInCFMainLoop(void* info) { |
455 |
printf("runInCFMainLoop() entered\n"); fflush(stdout); |
456 |
GigEditState* state = static_cast<GigEditState*>(info); |
457 |
state->main_loop_run( |
458 |
&state->initialized |
459 |
); |
460 |
printf("runInCFMainLoop() left\n"); fflush(stdout); |
461 |
} |
462 |
|
463 |
#endif // __APPLE__ |
464 |
|
465 |
void GigEditState::run(gig::Instrument* pInstrument) { |
466 |
mutex.lock(); // lock access to static variables |
467 |
|
468 |
static bool main_loop_started = false; |
469 |
instrument = pInstrument; |
470 |
if (!main_loop_started) { |
471 |
#if defined(__APPLE__) && HAVE_LINUXSAMPLER |
472 |
// spawn GUI on main thread : |
473 |
// On OS X the Gtk GUI can only be launched on a process's "main" |
474 |
// thread. When trying to launch the Gtk GUI on any other thread, |
475 |
// there will only be a white box, because the GUI would not receive |
476 |
// any events, since it would listen to the wrong system event loop. |
477 |
// So far we haven't investigated whether there is any kind of |
478 |
// circumvention to allow doing that also on other OS X threads. |
479 |
{ |
480 |
// In case the sampler was launched as standalone sampler (not as |
481 |
// plugin), use the following global callback variable hack ... |
482 |
if (g_mainThreadCallbackSupported) { |
483 |
printf("Setting callback ...\n"); fflush(stdout); |
484 |
g_mainThreadCallback = runInCFMainLoop; |
485 |
g_mainThreadCallbackInfo = this; |
486 |
g_fireMainThreadCallback = true; |
487 |
printf("Callback variables set.\n"); fflush(stdout); |
488 |
} else { // Sampler was launched as (i.e. AU / VST) plugin ... |
489 |
// When the sampler was launched as plugin, we have no idea |
490 |
// whether any sampler thread is the process's "main" thread. |
491 |
// So that's why we are trying to use Apple's API for trying to |
492 |
// launch our callback function on the process's main thread. |
493 |
// However this will only work, if the plugin host application |
494 |
// established a CF event loop, that is if the application is |
495 |
// using Cocoa for its GUI. For other host applications the |
496 |
// callback will never be executed and thus gigedit would not |
497 |
// popup. |
498 |
|
499 |
// should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread() |
500 |
/*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext(); |
501 |
sourceContext.info = this; |
502 |
sourceContext.perform = runInCFMainLoop; |
503 |
printf("CFRunLoopSourceCreate\n"); fflush(stdout); |
504 |
CFRunLoopSourceRef source = CFRunLoopSourceCreate( |
505 |
kCFAllocatorDefault, // allocator |
506 |
1, // priority |
507 |
&sourceContext |
508 |
); |
509 |
printf("CFRunLoopAddSource\n"); fflush(stdout); |
510 |
CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode); |
511 |
CFRelease(source);*/ |
512 |
|
513 |
// use Apple's Objective-C API to call our callback function |
514 |
// 'runInCFMainLoop()' on the process's "main" thread |
515 |
macHelperRunCFuncOnMainThread(runInCFMainLoop, this); |
516 |
} |
517 |
} |
518 |
#else |
519 |
#ifdef OLD_THREADS |
520 |
Glib::Thread::create( |
521 |
sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run), |
522 |
&initialized), |
523 |
false); |
524 |
#else |
525 |
Glib::Threads::Thread::create( |
526 |
sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run), |
527 |
&initialized)); |
528 |
#endif |
529 |
#endif |
530 |
printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout); |
531 |
initialized.wait(); |
532 |
printf("GUI is now initialized. Everything done.\n"); fflush(stdout); |
533 |
main_loop_started = true; |
534 |
} |
535 |
current = this; |
536 |
dispatcher->emit(); |
537 |
open.wait(); // wait until the GUI thread has read current |
538 |
mutex.unlock(); |
539 |
close.wait(); // sleep until window is closed |
540 |
} |
541 |
|
542 |
#if defined(WIN32) |
543 |
extern "C" { |
544 |
BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved) |
545 |
{ |
546 |
switch (reason) { |
547 |
case DLL_PROCESS_ATTACH: |
548 |
gigedit_dll_handle = instance; |
549 |
break; |
550 |
} |
551 |
return TRUE; |
552 |
} |
553 |
} |
554 |
#endif |