X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/53010e52d3adc63d2771263e294714bf644fc979..fb8d7eb7a880f1f2e32d8830f9c5e12b2536e05f:/src/gtk/app.cpp diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp index ee5c02afca..3754531c01 100644 --- a/src/gtk/app.cpp +++ b/src/gtk/app.cpp @@ -1,59 +1,185 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: app.cpp +// Name: src/gtk/app.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 -// Id: -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Id: $Id$ +// Copyright: (c) 1998 Robert Roebling, Julian Smart +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "app.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/app.h" -#include "wx/gdicmn.h" -#include "wx/utils.h" -#include "wx/postscrp.h" -#include "wx/intl.h" -#include "wx/log.h" -#include "unistd.h" +#ifndef WX_PRECOMP + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/memory.h" + #include "wx/font.h" +#endif + +#include "wx/thread.h" -#ifdef USE_GDK_IMLIB -#include "gdk_imlib.h" +#ifdef __WXGPE__ + #include #endif +#include "wx/apptrait.h" +#include "wx/fontmap.h" + +#if wxUSE_LIBHILDON + #include +#endif // wxUSE_LIBHILDON + +#if wxUSE_LIBHILDON2 + #include +#endif // wxUSE_LIBHILDON2 + +#include +#include "wx/gtk/private.h" + //----------------------------------------------------------------------------- -// global data +// link GnomeVFS //----------------------------------------------------------------------------- -wxApp *wxTheApp = NULL; -wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL; - -extern wxList wxPendingDelete; +#if wxUSE_MIMETYPE && wxUSE_LIBGNOMEVFS + #include "wx/link.h" + wxFORCE_LINK_MODULE(gnome_vfs) +#endif //----------------------------------------------------------------------------- // local functions //----------------------------------------------------------------------------- -extern void wxFlushResources(void); +// One-shot signal emission hook, to install idle handler. +extern "C" { +static gboolean +wx_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer data) +{ + wxApp* app = wxTheApp; + if (app != NULL) + app->WakeUpIdle(); + bool* hook_installed = (bool*)data; + // record that hook is not installed + *hook_installed = false; + // remove hook + return false; +} +} + +// Add signal emission hooks, to re-install idle handler when needed. +static void wx_add_idle_hooks() +{ + // "event" hook + { + static bool hook_installed; + if (!hook_installed) + { + static guint sig_id; + if (sig_id == 0) + sig_id = g_signal_lookup("event", GTK_TYPE_WIDGET); + hook_installed = true; + g_signal_add_emission_hook( + sig_id, 0, wx_emission_hook, &hook_installed, NULL); + } + } + // "size_allocate" hook + // Needed to match the behaviour of the old idle system, + // but probably not necessary. + { + static bool hook_installed; + if (!hook_installed) + { + static guint sig_id; + if (sig_id == 0) + sig_id = g_signal_lookup("size_allocate", GTK_TYPE_WIDGET); + hook_installed = true; + g_signal_add_emission_hook( + sig_id, 0, wx_emission_hook, &hook_installed, NULL); + } + } +} + +extern "C" { +static gboolean wxapp_idle_callback(gpointer) +{ + return wxTheApp->DoIdle(); +} +} + +bool wxApp::DoIdle() +{ + guint id_save; + { + // Allow another idle source to be added while this one is busy. + // Needed if an idle event handler runs a new event loop, + // for example by showing a dialog. +#if wxUSE_THREADS + wxMutexLocker lock(m_idleMutex); +#endif + id_save = m_idleSourceId; + m_idleSourceId = 0; + wx_add_idle_hooks(); + +#if wxDEBUG_LEVEL + // don't generate the idle events while the assert modal dialog is shown, + // this matches the behaviour of wxMSW + if (m_isInAssert) + return false; +#endif + } + + gdk_threads_enter(); + bool needMore; + do { + ProcessPendingEvents(); + + needMore = ProcessIdle(); + } while (needMore && gtk_events_pending() == 0); + gdk_threads_leave(); + +#if wxUSE_THREADS + wxMutexLocker lock(m_idleMutex); +#endif + + bool keepSource = false; + // if a new idle source has not been added, either as a result of idle + // processing above or by another thread calling WakeUpIdle() + if (m_idleSourceId == 0) + { + // if more idle processing was requested or pending events have appeared + if (needMore || HasPendingEvents()) + { + // keep this source installed + m_idleSourceId = id_save; + keepSource = true; + } + else // add hooks and remove this source + wx_add_idle_hooks(); + } + // else remove this source, leave new one installed + // we must keep an idle source, otherwise a wakeup could be lost + + return keepSource; +} //----------------------------------------------------------------------------- -// global functions +// Access to the root window global //----------------------------------------------------------------------------- -void wxExit(void) +GtkWidget* wxGetRootWindow() { - gtk_main_quit(); -}; + static GtkWidget *s_RootWindow = NULL; -bool wxYield(void) -{ - while (gtk_events_pending() > 0) gtk_main_iteration(); - return TRUE; -}; + if (s_RootWindow == NULL) + { + s_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL ); + gtk_widget_realize( s_RootWindow ); + } + return s_RootWindow; +} //----------------------------------------------------------------------------- // wxApp @@ -61,307 +187,372 @@ bool wxYield(void) IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler) -BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) -END_EVENT_TABLE() - -gint wxapp_idle_callback( gpointer WXUNUSED(data) ) -{ - if (wxTheApp) while (wxTheApp->ProcessIdle()) {}; - usleep( 10000 ); - return TRUE; -}; - wxApp::wxApp() { - m_idleTag = 0; - m_topWindow = NULL; - m_exitOnFrameDelete = TRUE; -}; + m_isInAssert = false; + m_idleSourceId = 0; +} -wxApp::~wxApp(void) +wxApp::~wxApp() { - gtk_idle_remove( m_idleTag ); -}; +} -bool wxApp::OnInit(void) +bool wxApp::SetNativeTheme(const wxString& theme) { - return TRUE; -}; +#ifdef __WXGTK3__ + wxUnusedVar(theme); + return false; +#else + wxString path; + path = gtk_rc_get_theme_dir(); + path += "/"; + path += theme.utf8_str(); + path += "/gtk-2.0/gtkrc"; + + if ( wxFileExists(path.utf8_str()) ) + gtk_rc_add_default_file(path.utf8_str()); + else if ( wxFileExists(theme.utf8_str()) ) + gtk_rc_add_default_file(theme.utf8_str()); + else + { + wxLogWarning("Theme \"%s\" not available.", theme); -bool wxApp::OnInitGui(void) -{ - m_idleTag = gtk_idle_add( wxapp_idle_callback, NULL ); - return TRUE; -}; + return false; + } -int wxApp::OnRun(void) -{ - return MainLoop(); -}; + gtk_rc_reparse_all_for_settings(gtk_settings_get_default(), TRUE); -bool wxApp::ProcessIdle(void) -{ - wxIdleEvent event; - event.SetEventObject( this ); - ProcessEvent( event ); - - return event.MoreRequested(); -}; - -void wxApp::OnIdle( wxIdleEvent &event ) + return true; +#endif +} + +bool wxApp::OnInitGui() { - static bool inOnIdle = FALSE; + if ( !wxAppBase::OnInitGui() ) + return false; - // Avoid recursion (via ProcessEvent default case) - if (inOnIdle) - return; +#ifndef __WXGTK3__ + // if this is a wxGLApp (derived from wxApp), and we've already + // chosen a specific visual, then derive the GdkVisual from that + if ( GetXVisualInfo() ) + { + GdkVisual* vis = gtk_widget_get_default_visual(); - inOnIdle = TRUE; + GdkColormap *colormap = gdk_colormap_new( vis, FALSE ); + gtk_widget_set_default_colormap( colormap ); + } + else + { + // On some machines, the default visual is just 256 colours, so + // we make sure we get the best. This can sometimes be wasteful. + if (m_useBestVisual) + { + if (m_forceTrueColour) + { + GdkVisual* visual = gdk_visual_get_best_with_both( 24, GDK_VISUAL_TRUE_COLOR ); + if (!visual) + { + wxLogError(wxT("Unable to initialize TrueColor visual.")); + return false; + } + GdkColormap *colormap = gdk_colormap_new( visual, FALSE ); + gtk_widget_set_default_colormap( colormap ); + } + else + { + if (gdk_visual_get_best() != gdk_visual_get_system()) + { + GdkVisual* visual = gdk_visual_get_best(); + GdkColormap *colormap = gdk_colormap_new( visual, FALSE ); + gtk_widget_set_default_colormap( colormap ); + } + } + } + } +#endif - // 'Garbage' collection of windows deleted with Close(). - DeletePendingObjects(); +#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2 + if ( !GetHildonProgram() ) + { + wxLogError(_("Unable to initialize Hildon program")); + return false; + } +#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2 - // flush the logged messages if any - wxLog *pLog = wxLog::GetActiveTarget(); - if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); + return true; +} - // Send OnIdle events to all windows - bool needMore = SendIdleEvents(); +// use unusual names for the parameters to avoid conflict with wxApp::arg[cv] +bool wxApp::Initialize(int& argc_, wxChar **argv_) +{ + if ( !wxAppBase::Initialize(argc_, argv_) ) + return false; - if (needMore) - event.RequestMore(TRUE); +#if wxUSE_THREADS + if (!g_thread_supported()) + { + g_thread_init(NULL); + gdk_threads_init(); + } +#endif // wxUSE_THREADS + + // gtk+ 2.0 supports Unicode through UTF-8 strings + wxConvCurrent = &wxConvUTF8; + +#ifdef __UNIX__ + // decide which conversion to use for the file names + + // (1) this variable exists for the sole purpose of specifying the encoding + // of the filenames for GTK+ programs, so use it if it is set + wxString encName(wxGetenv(wxT("G_FILENAME_ENCODING"))); + encName = encName.BeforeFirst(wxT(',')); + if (encName.CmpNoCase(wxT("@locale")) == 0) + encName.clear(); + encName.MakeUpper(); + if (encName.empty()) + { +#if wxUSE_INTL + // (2) if a non default locale is set, assume that the user wants his + // filenames in this locale too + encName = wxLocale::GetSystemEncodingName().Upper(); + + // But don't consider ASCII in this case. + if ( !encName.empty() ) + { +#if wxUSE_FONTMAP + wxFontEncoding enc = wxFontMapperBase::GetEncodingFromName(encName); + if ( enc == wxFONTENCODING_DEFAULT ) +#else // !wxUSE_FONTMAP + if ( encName == wxT("US-ASCII") ) +#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP + { + // This means US-ASCII when returned from GetEncodingFromName(). + encName.clear(); + } + } +#endif // wxUSE_INTL + + // (3) finally use UTF-8 by default + if ( encName.empty() ) + encName = wxT("UTF-8"); + wxSetEnv(wxT("G_FILENAME_ENCODING"), encName); + } + + static wxConvBrokenFileNames fileconv(encName); + wxConvFileName = &fileconv; +#endif // __UNIX__ + + + bool init_result; + int i; + +#if wxUSE_UNICODE + // gtk_init() wants UTF-8, not wchar_t, so convert + char **argvGTK = new char *[argc_ + 1]; + for ( i = 0; i < argc_; i++ ) + { + argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv_[i])); + } - inOnIdle = FALSE; -}; + argvGTK[argc_] = NULL; -bool wxApp::SendIdleEvents(void) -{ - bool needMore = FALSE; - wxNode* node = wxTopLevelWindows.First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; - - node = node->Next(); - } - return needMore; -}; - -bool wxApp::SendIdleEvents( wxWindow* win ) -{ - bool needMore = FALSE; + int argcGTK = argc_; - wxIdleEvent event; - event.SetEventObject(win); - win->ProcessEvent(event); + // Prevent gtk_init_check() from changing the locale automatically for + // consistency with the other ports that don't do it. If necessary, + // wxApp::SetCLocale() may be explicitly called. + gtk_disable_setlocale(); - if (event.MoreRequested()) - needMore = TRUE; +#ifdef __WXGPE__ + init_result = true; // is there a _check() version of this? + gpe_application_init( &argcGTK, &argvGTK ); +#else + init_result = gtk_init_check( &argcGTK, &argvGTK ) != 0; +#endif - wxNode* node = win->GetChildren()->First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; + if ( argcGTK != argc_ ) + { + // we have to drop the parameters which were consumed by GTK+ + for ( i = 0; i < argcGTK; i++ ) + { + while ( strcmp(wxConvUTF8.cWX2MB(argv_[i]), argvGTK[i]) != 0 ) + { + memmove(argv_ + i, argv_ + i + 1, (argc_ - i)*sizeof(*argv_)); + } + } + + argc_ = argcGTK; + argv_[argc_] = NULL; + } + //else: gtk_init() didn't modify our parameters + + // free our copy + for ( i = 0; i < argcGTK; i++ ) + { + free(argvGTK[i]); + } - node = node->Next(); - } - return needMore ; -}; + delete [] argvGTK; +#else // !wxUSE_UNICODE + // gtk_init() shouldn't actually change argv_ itself (just its contents) so + // it's ok to pass pointer to it + init_result = gtk_init_check( &argc_, &argv_ ); +#endif // wxUSE_UNICODE/!wxUSE_UNICODE -int wxApp::OnExit(void) -{ - return 0; -}; + // update internal arg[cv] as GTK+ may have removed processed options: + this->argc = argc_; + this->argv = argv_; -int wxApp::MainLoop(void) -{ - gtk_main(); - return 0; -}; + if ( m_traits ) + { + // if there are still GTK+ standard options unparsed in the command + // line, it means that they were not syntactically correct and GTK+ + // already printed a warning on the command line and we should now + // exit: + wxArrayString opt, desc; + m_traits->GetStandardCmdLineOptions(opt, desc); + + for ( i = 0; i < argc_; i++ ) + { + // leave just the names of the options with values + const wxString str = wxString(argv_[i]).BeforeFirst('='); + + for ( size_t j = 0; j < opt.size(); j++ ) + { + // remove the leading spaces from the option string as it does + // have them + if ( opt[j].Trim(false).BeforeFirst('=') == str ) + { + // a GTK+ option can be left on the command line only if + // there was an error in (or before, in another standard + // options) it, so abort, just as we do if incorrect + // program option is given + wxLogError(_("Invalid GTK+ command line option, use \"%s --help\""), + argv_[0]); + return false; + } + } + } + } + + if ( !init_result ) + { + wxLogError(_("Unable to initialize GTK+, is DISPLAY set properly?")); + return false; + } -void wxApp::ExitMainLoop(void) -{ - gtk_main_quit(); -}; + // we cannot enter threads before gtk_init is done + gdk_threads_enter(); -bool wxApp::Initialized(void) -{ - return m_initialized; -}; +#if wxUSE_INTL + wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); +#endif -bool wxApp::Pending(void) -{ - return FALSE; -}; + // make sure GtkWidget type is loaded, idle hooks need it + g_type_class_ref(GTK_TYPE_WIDGET); + WakeUpIdle(); -void wxApp::Dispatch(void) -{ -}; + return true; +} -void wxApp::DeletePendingObjects(void) +void wxApp::CleanUp() { - wxNode *node = wxPendingDelete.First(); - while (node) - { - wxObject *obj = (wxObject *)node->Data(); - - delete obj; - - if (wxPendingDelete.Member(obj)) - delete node; + if (m_idleSourceId != 0) + g_source_remove(m_idleSourceId); - node = wxPendingDelete.First(); - }; -}; + // release reference acquired by Initialize() + g_type_class_unref(g_type_class_peek(GTK_TYPE_WIDGET)); -wxWindow *wxApp::GetTopWindow(void) -{ - if (m_topWindow) return m_topWindow; - wxNode *node = wxTopLevelWindows.First(); - if (!node) return NULL; - return (wxWindow*)node->Data(); -}; + gdk_threads_leave(); -void wxApp::SetTopWindow( wxWindow *win ) -{ - m_topWindow = win; -}; + wxAppBase::CleanUp(); +} -void wxApp::CommonInit(void) +void wxApp::WakeUpIdle() { - -/* -#if USE_RESOURCES - (void) wxGetResource("wxWindows", "OsVersion", &wxOsVersion); +#if wxUSE_THREADS + wxMutexLocker lock(m_idleMutex); #endif -*/ - - wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); - wxTheColourDatabase->Initialize(); - wxInitializeStockObjects(); + if (m_idleSourceId == 0) + m_idleSourceId = g_idle_add_full(G_PRIORITY_LOW, wxapp_idle_callback, NULL, NULL); +} - // For PostScript printing -#if USE_POSTSCRIPT - wxInitializePrintSetupData(); - wxThePrintPaperDatabase = new wxPrintPaperDatabase; - wxThePrintPaperDatabase->CreateDatabase(); +// Checking for pending events requires first removing our idle source, +// otherwise it will cause the check to always return true. +bool wxApp::EventsPending() +{ +#if wxUSE_THREADS + wxMutexLocker lock(m_idleMutex); #endif + if (m_idleSourceId != 0) + { + g_source_remove(m_idleSourceId); + m_idleSourceId = 0; + wx_add_idle_hooks(); + } + return gtk_events_pending() != 0; +} - -/* - wxBitmap::InitStandardHandlers(); - - g_globalCursor = new wxCursor; -*/ - - wxInitializeStockObjects(); -}; - -void wxApp::CommonCleanUp(void) -{ - wxDeleteStockObjects(); - - wxFlushResources(); -}; - -wxLog *wxApp::CreateLogTarget() +void wxApp::OnAssertFailure(const wxChar *file, + int line, + const wxChar* func, + const wxChar* cond, + const wxChar *msg) { - return new wxLogGui; + // there is no need to do anything if asserts are disabled in this build + // anyhow +#if wxDEBUG_LEVEL + // block wx idle events while assert dialog is showing + m_isInAssert = true; + + wxAppBase::OnAssertFailure(file, line, func, cond, msg); + + m_isInAssert = false; +#else // !wxDEBUG_LEVEL + wxUnusedVar(file); + wxUnusedVar(line); + wxUnusedVar(func); + wxUnusedVar(cond); + wxUnusedVar(msg); +#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL } -//----------------------------------------------------------------------------- -// wxEntry -//----------------------------------------------------------------------------- +#if wxUSE_THREADS +void wxGUIAppTraits::MutexGuiEnter() +{ + gdk_threads_enter(); +} -int wxEntry( int argc, char *argv[] ) +void wxGUIAppTraits::MutexGuiLeave() { - wxBuffer = new char[BUFSIZ + 512]; + gdk_threads_leave(); +} +#endif // wxUSE_THREADS - wxClassInfo::InitializeClasses(); - - if (!wxTheApp) - { - if (!wxApp::GetInitializerFunction()) +/* static */ +bool wxApp::GTKIsUsingGlobalMenu() +{ + static int s_isUsingGlobalMenu = -1; + if ( s_isUsingGlobalMenu == -1 ) { - printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" ); - return 0; - }; - - wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction(); - - wxObject *test_app = app_ini(); - - wxTheApp = (wxApp*) test_app; - -// wxTheApp = (wxApp*)( app_ini() ); - }; - - if (!wxTheApp) - { - printf( "wxWindows error: wxTheApp == NULL\n" ); - return 0; - }; - -// printf( "Programmstart.\n" ); - - wxTheApp->argc = argc; - wxTheApp->argv = argv; - - gtk_init( &argc, &argv ); - -#ifdef USE_GDK_IMLIB - - gdk_imlib_init(); - - gtk_widget_push_visual(gdk_imlib_get_visual()); - - gtk_widget_push_colormap(gdk_imlib_get_colormap()); - -#endif - - wxApp::CommonInit(); - - wxTheApp->OnInitGui(); - - // Here frames insert themselves automatically - // into wxTopLevelWindows by getting created - // in OnInit(). - - if (!wxTheApp->OnInit()) return 0; - - wxTheApp->m_initialized = (wxTopLevelWindows.Number() > 0); - - int retValue = 0; - - if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun(); - - wxTheApp->DeletePendingObjects(); - - wxTheApp->OnExit(); - - wxApp::CommonCleanUp(); - - return retValue; -}; - -//----------------------------------------------------------------------------- -// main() -//----------------------------------------------------------------------------- - -#if defined(AIX) || defined(AIX4) || defined(____HPUX__) - - // main in IMPLEMENT_WX_MAIN in IMPLEMENT_APP in app.h - -#else - - int main(int argc, char *argv[]) { return wxEntry(argc, argv); } - -#endif + // Currently we just check for this environment variable because this + // is how support for the global menu is implemented under Ubuntu. + // + // If we ever get false positives, we could also check for + // XDG_CURRENT_DESKTOP env var being set to "Unity". + wxString proxy; + s_isUsingGlobalMenu = wxGetEnv("UBUNTU_MENUPROXY", &proxy) && + !proxy.empty() && proxy != "0"; + } + + return s_isUsingGlobalMenu == 1; +} +#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2 +// Maemo-specific method: get the main program object +HildonProgram *wxApp::GetHildonProgram() +{ + return hildon_program_get_instance(); +} +#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2