X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/49f29fbe2ca82fc6c603bc4027d02aae6677c2e8..0d53638f7147c18153f63fdfc096b17be6e22a27:/src/gtk/app.cpp diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp index 1aee54439b..2bd616a4ba 100644 --- a/src/gtk/app.cpp +++ b/src/gtk/app.cpp @@ -2,17 +2,10 @@ // Name: src/gtk/app.cpp // Purpose: // Author: Robert Roebling -// Id: $Id$ // Copyright: (c) 1998 Robert Roebling, Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __VMS -// vms_jackets.h should for proper working be included before anything else -# include -#undef ConnectionNumber -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -32,10 +25,19 @@ #include #endif -#include "wx/gtk/win_gtk.h" -#include "wx/gtk/private.h" +#include "wx/apptrait.h" +#include "wx/fontmap.h" + +#if wxUSE_LIBHILDON + #include +#endif // wxUSE_LIBHILDON -#include +#if wxUSE_LIBHILDON2 + #include +#endif // wxUSE_LIBHILDON2 + +#include +#include "wx/gtk/private.h" //----------------------------------------------------------------------------- // link GnomeVFS @@ -46,254 +48,120 @@ wxFORCE_LINK_MODULE(gnome_vfs) #endif -//----------------------------------------------------------------------------- -// global data -//----------------------------------------------------------------------------- - -bool g_mainThreadLocked = false; - -static GtkWidget *gs_RootWindow = (GtkWidget*) NULL; - -//----------------------------------------------------------------------------- -// idle system -//----------------------------------------------------------------------------- - -void wxapp_install_idle_handler(); - -#if wxUSE_THREADS -static wxMutex gs_idleTagsMutex; -#endif - -//----------------------------------------------------------------------------- -// wxYield -//----------------------------------------------------------------------------- - -// not static because used by textctrl.cpp -// -// MT-FIXME -bool wxIsInsideYield = false; - -bool wxApp::Yield(bool onlyIfNeeded) -{ - if ( wxIsInsideYield ) - { - if ( !onlyIfNeeded ) - { - wxFAIL_MSG( wxT("wxYield called recursively" ) ); - } - - return false; - } - -#if wxUSE_THREADS - if ( !wxThread::IsMain() ) - { - // can't call gtk_main_iteration() from other threads like this - return true; - } -#endif // wxUSE_THREADS - - wxIsInsideYield = true; - - // We need to remove idle callbacks or the loop will - // never finish. - SuspendIdleCallback(); - -#if wxUSE_LOG - // disable log flushing from here because a call to wxYield() shouldn't - // normally result in message boxes popping up &c - wxLog::Suspend(); -#endif - - while (gtk_events_pending()) - gtk_main_iteration(); - - // It's necessary to call ProcessIdle() to update the frames sizes which - // might have been changed (it also will update other things set from - // OnUpdateUI() which is a nice (and desired) side effect). But we - // call ProcessIdle() only once since this is not meant for longish - // background jobs (controlled by wxIdleEvent::RequestMore() and the - // return value of Processidle(). - ProcessIdle(); - -#if wxUSE_LOG - // let the logs be flashed again - wxLog::Resume(); -#endif - - wxIsInsideYield = false; - - return true; -} - -//----------------------------------------------------------------------------- -// wxWakeUpIdle -//----------------------------------------------------------------------------- - -// RR/KH: No wxMutexGui calls are needed here according to the GTK faq, -// http://www.gtk.org/faq/#AEN500 - this caused problems for wxPostEvent. - -void wxApp::WakeUpIdle() -{ - wxapp_install_idle_handler(); -} - //----------------------------------------------------------------------------- // local functions //----------------------------------------------------------------------------- -// the callback functions must be extern "C" to comply with GTK+ declarations -extern "C" -{ - -// One-shot emission hook for "event" signal, to install idle handler. -// This will be called when the "event" signal is issued on any GtkWidget object. +// One-shot signal emission hook, to install idle handler. +extern "C" { static gboolean -event_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer) +wx_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer data) { - wxapp_install_idle_handler(); + 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 emission hook for "event" signal, to re-install idle handler when needed -static inline void wxAddEmissionHook() -{ - GType widgetType = GTK_TYPE_WIDGET; - // if GtkWidget type is loaded - if (g_type_class_peek(widgetType) != NULL) - { - guint sig_id = g_signal_lookup("event", widgetType); - g_signal_add_emission_hook(sig_id, 0, event_emission_hook, NULL, NULL); - } } -static gint wxapp_idle_callback( gpointer WXUNUSED(data) ) +// Add signal emission hooks, to re-install idle handler when needed. +static void wx_add_idle_hooks() { - // this does not look possible, but just in case... - if (!wxTheApp) - return false; - - bool moreIdles = false; - -#ifdef __WXDEBUG__ - // don't generate the idle events while the assert modal dialog is shown, - // this matches the behavior of wxMSW - if (!wxTheApp->IsInAssert()) -#endif // __WXDEBUG__ + // "event" hook { - guint idleID_save; + static bool hook_installed; + if (!hook_installed) { - // 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(gs_idleTagsMutex); -#endif - idleID_save = wxTheApp->m_idleTag; - wxTheApp->m_idleTag = 0; - g_isIdle = true; - wxAddEmissionHook(); - } - - // When getting called from GDK's time-out handler - // we are no longer within GDK's grab on the GUI - // thread so we must lock it here ourselves. - gdk_threads_enter(); - - // Send idle event to all who request them as long as - // no events have popped up in the event queue. - do { - moreIdles = wxTheApp->ProcessIdle(); - } while (moreIdles && gtk_events_pending() == 0); - - // Release lock again - gdk_threads_leave(); - - { - // If another idle source was added, remove it -#if wxUSE_THREADS - wxMutexLocker lock(gs_idleTagsMutex); -#endif - if (wxTheApp->m_idleTag != 0) - g_source_remove(wxTheApp->m_idleTag); - wxTheApp->m_idleTag = idleID_save; - g_isIdle = false; + 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); } } - - if (!moreIdles) + // "size_allocate" hook + // Needed to match the behaviour of the old idle system, + // but probably not necessary. { -#if wxUSE_THREADS - wxMutexLocker lock(gs_idleTagsMutex); -#endif - // Indicate that we are now in idle mode and event handlers - // will have to reinstall the idle handler again. - g_isIdle = true; - wxTheApp->m_idleTag = 0; - - wxAddEmissionHook(); + 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); + } } - - // Return FALSE if no more idle events are to be sent - return moreIdles; } -} // extern "C" - -#if wxUSE_THREADS - -static GPollFunc wxgs_poll_func; extern "C" { -static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout ) +static gboolean wxapp_idle_callback(gpointer) { - gdk_threads_enter(); - - wxMutexGuiLeave(); - g_mainThreadLocked = true; - - gint res = (*wxgs_poll_func)(ufds, nfds, timeout); - - wxMutexGuiEnter(); - g_mainThreadLocked = false; - - gdk_threads_leave(); - - return res; + return wxTheApp->DoIdle(); } } -#endif // wxUSE_THREADS - -void wxapp_install_idle_handler() +bool wxApp::DoIdle() { - if (wxTheApp == NULL) - return; - + 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(gs_idleTagsMutex); + 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 + } - // Don't install the handler if it's already installed. This test *MUST* - // be done when gs_idleTagsMutex is locked! - if (!g_isIdle) - return; + gdk_threads_enter(); + bool needMore; + do { + ProcessPendingEvents(); - // GD: this assert is raised when using the thread sample (which works) - // so the test is probably not so easy. Can widget callbacks be - // triggered from child threads and, if so, for which widgets? - // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") ); + needMore = ProcessIdle(); + } while (needMore && gtk_events_pending() == 0); + gdk_threads_leave(); - wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") ); +#if wxUSE_THREADS + wxMutexLocker lock(m_idleMutex); +#endif - g_isIdle = false; + 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 - // This routine gets called by all event handlers - // indicating that the idle is over. It may also - // get called from other thread for sending events - // to the main thread (and processing these in - // idle time). Very low priority. - wxTheApp->m_idleTag = g_idle_add_full(G_PRIORITY_LOW, wxapp_idle_callback, NULL, NULL); + return keepSource; } //----------------------------------------------------------------------------- @@ -302,12 +170,14 @@ void wxapp_install_idle_handler() GtkWidget* wxGetRootWindow() { - if (gs_RootWindow == NULL) + static GtkWidget *s_RootWindow = NULL; + + if (s_RootWindow == NULL) { - gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL ); - gtk_widget_realize( gs_RootWindow ); + s_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL ); + gtk_widget_realize( s_RootWindow ); } - return gs_RootWindow; + return s_RootWindow; } //----------------------------------------------------------------------------- @@ -316,29 +186,43 @@ GtkWidget* wxGetRootWindow() IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler) -BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxAppBase::OnIdle) -END_EVENT_TABLE() - wxApp::wxApp() { -#ifdef __WXDEBUG__ m_isInAssert = false; -#endif // __WXDEBUG__ - - m_idleTag = 0; - g_isIdle = true; - wxapp_install_idle_handler(); - - // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp - m_glVisualInfo = (void *) NULL; - m_glFBCInfo = (void *) NULL; + m_idleSourceId = 0; } wxApp::~wxApp() { - if (m_idleTag) - g_source_remove( m_idleTag ); +} + +bool wxApp::SetNativeTheme(const wxString& theme) +{ +#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); + + return false; + } + + gtk_rc_reparse_all_for_settings(gtk_settings_get_default(), TRUE); + + return true; +#endif } bool wxApp::OnInitGui() @@ -346,9 +230,10 @@ bool wxApp::OnInitGui() if ( !wxAppBase::OnInitGui() ) return false; +#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 (m_glVisualInfo != NULL) + if ( GetXVisualInfo() ) { GdkVisual* vis = gtk_widget_get_default_visual(); @@ -383,106 +268,120 @@ bool wxApp::OnInitGui() } } } +#endif - return true; -} - -GdkVisual *wxApp::GetGdkVisual() -{ - GdkVisual *visual = NULL; - - if (m_glVisualInfo) - visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid ); - else - visual = gdk_drawable_get_visual( wxGetRootWindow()->window ); - - wxASSERT( visual ); +#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2 + if ( !GetHildonProgram() ) + { + wxLogError(_("Unable to initialize Hildon program")); + return false; + } +#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2 - return visual; + return true; } -bool wxApp::Initialize(int& argc, wxChar **argv) +// use unusual names for the parameters to avoid conflict with wxApp::arg[cv] +bool wxApp::Initialize(int& argc_, wxChar **argv_) { - bool init_result; + if ( !wxAppBase::Initialize(argc_, argv_) ) + return false; #if wxUSE_THREADS if (!g_thread_supported()) + { g_thread_init(NULL); - - wxgs_poll_func = g_main_context_get_poll_func(NULL); - g_main_context_set_poll_func(NULL, wxapp_poll_func); + gdk_threads_init(); + } #endif // wxUSE_THREADS - gtk_set_locale(); - - // We should have the wxUSE_WCHAR_T test on the _outside_ -#if wxUSE_WCHAR_T // gtk+ 2.0 supports Unicode through UTF-8 strings wxConvCurrent = &wxConvUTF8; -#else // !wxUSE_WCHAR_T - if (!wxOKlibc()) - wxConvCurrent = (wxMBConv*) NULL; -#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T +#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(_T("G_FILENAME_ENCODING"))); - encName = encName.BeforeFirst(_T(',')); - if (encName.CmpNoCase(_T("@locale")) == 0) + wxString encName(wxGetenv(wxT("G_FILENAME_ENCODING"))); + encName = encName.BeforeFirst(wxT(',')); + if (encName.CmpNoCase(wxT("@locale")) == 0) encName.clear(); encName.MakeUpper(); -#if wxUSE_INTL 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 == _T("US-ASCII")) - encName = _T("UTF-8"); - wxSetEnv(_T("G_FILENAME_ENCODING"), encName); + if ( encName.empty() ) + encName = wxT("UTF-8"); + wxSetEnv(wxT("G_FILENAME_ENCODING"), encName); } -#else - if (encName.empty()) - encName = _T("UTF-8"); -#endif // wxUSE_INTL + 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 - int i; - char **argvGTK = new char *[argc + 1]; - for ( i = 0; i < argc; i++ ) + char **argvGTK = new char *[argc_ + 1]; + for ( i = 0; i < argc_; i++ ) { - argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i])); + argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv_[i])); } - argvGTK[argc] = NULL; + argvGTK[argc_] = NULL; + + int argcGTK = argc_; - int argcGTK = argc; + // 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(); #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 ); + init_result = gtk_init_check( &argcGTK, &argvGTK ) != 0; #endif - if ( argcGTK != argc ) + 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 ) + while ( strcmp(wxConvUTF8.cWX2MB(argv_[i]), argvGTK[i]) != 0 ) { - memmove(argv + i, argv + i + 1, argc - i); + memmove(argv_ + i, argv_ + i + 1, (argc_ - i)*sizeof(*argv_)); } } - argc = argcGTK; + argc_ = argcGTK; + argv_[argc_] = NULL; } //else: gtk_init() didn't modify our parameters @@ -494,43 +393,104 @@ bool wxApp::Initialize(int& argc, wxChar **argv) delete [] argvGTK; #else // !wxUSE_UNICODE - // gtk_init() shouldn't actually change argv itself (just its contents) so + // 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 ); + init_result = gtk_init_check( &argc_, &argv_ ); #endif // wxUSE_UNICODE/!wxUSE_UNICODE - if (!init_result) { - wxLogError(wxT("Unable to initialize gtk, is DISPLAY set properly?")); - return false; - } + // update internal arg[cv] as GTK+ may have removed processed options: + this->argc = argc_; + this->argv = argv_; - // we can not enter threads before gtk_init is done - gdk_threads_enter(); - - if ( !wxAppBase::Initialize(argc, argv) ) + if ( m_traits ) { - gdk_threads_leave(); + // 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; } - wxSetDetectableAutoRepeat( true ); + // we cannot enter threads before gtk_init is done + gdk_threads_enter(); #if wxUSE_INTL wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); #endif + // make sure GtkWidget type is loaded, idle hooks need it + g_type_class_ref(GTK_TYPE_WIDGET); + WakeUpIdle(); + return true; } void wxApp::CleanUp() { + if (m_idleSourceId != 0) + g_source_remove(m_idleSourceId); + + // release reference acquired by Initialize() + g_type_class_unref(g_type_class_peek(GTK_TYPE_WIDGET)); + gdk_threads_leave(); wxAppBase::CleanUp(); } -#ifdef __WXDEBUG__ +void wxApp::WakeUpIdle() +{ +#if wxUSE_THREADS + wxMutexLocker lock(m_idleMutex); +#endif + if (m_idleSourceId == 0) + m_idleSourceId = g_idle_add_full(G_PRIORITY_LOW, wxapp_idle_callback, NULL, NULL); +} + +// 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; +} void wxApp::OnAssertFailure(const wxChar *file, int line, @@ -538,27 +498,60 @@ void wxApp::OnAssertFailure(const wxChar *file, const wxChar* cond, const wxChar *msg) { - + // 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 } -#endif // __WXDEBUG__ +#if wxUSE_THREADS +void wxGUIAppTraits::MutexGuiEnter() +{ + gdk_threads_enter(); +} -void wxApp::SuspendIdleCallback() +void wxGUIAppTraits::MutexGuiLeave() { -#if wxUSE_THREADS - wxMutexLocker lock(gs_idleTagsMutex); -#endif - if (m_idleTag != 0) + gdk_threads_leave(); +} +#endif // wxUSE_THREADS + +/* static */ +bool wxApp::GTKIsUsingGlobalMenu() +{ + static int s_isUsingGlobalMenu = -1; + if ( s_isUsingGlobalMenu == -1 ) { - g_source_remove(m_idleTag); - m_idleTag = 0; - g_isIdle = true; - wxAddEmissionHook(); + // 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