X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c9e352726232feaa1085f9950cddfa6c98fdda95..8f974c520a8733158591891458fda10fae4c3950:/src/gtk/app.cpp

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 680bbce0f0..8502f2a279 100644
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -52,7 +52,7 @@ extern bool g_isIdle;
 bool   g_mainThreadLocked = FALSE;
 gint   g_pendingTag = 0;
 
-GtkWidget *wxRootWindow = (GtkWidget*) NULL;
+static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;
 
 //-----------------------------------------------------------------------------
 // local functions
@@ -80,17 +80,25 @@ void wxExit()
 // wxYield
 //-----------------------------------------------------------------------------
 
+static bool gs_inYield = FALSE;
+
 bool wxYield()
 {
+#if wxUSE_THREADS
+    if ( !wxThread::IsMain() )
+    {
+        // can't call gtk_main_iteration() from other threads like this
+        return TRUE;
+    }
+#endif // wxUSE_THREADS
+
 #ifdef __WXDEBUG__
-    static bool s_inYield = FALSE;
-    
-    if (s_inYield)
+    if (gs_inYield)
         wxFAIL_MSG( wxT("wxYield called recursively" ) );
-    
-    s_inYield = TRUE;
 #endif
 
+    gs_inYield = TRUE;
+
     if (!g_isIdle)
     {
         // We need to remove idle callbacks or the loop will
@@ -100,13 +108,13 @@ bool wxYield()
         g_isIdle = TRUE;
     }
 
-    while (gtk_events_pending())
-        gtk_main_iteration();
-
     // disable log flushing from here because a call to wxYield() shouldn't
     // normally result in message boxes popping up &c
     wxLog::Suspend();
 
+    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) */
@@ -115,13 +123,24 @@ bool wxYield()
     // let the logs be flashed again
     wxLog::Resume();
 
-#ifdef __WXDEBUG__
-    s_inYield = FALSE;
-#endif
+    gs_inYield = FALSE;
 
     return TRUE;
 }
 
+//-----------------------------------------------------------------------------
+// wxYieldIfNeeded
+// Like wxYield, but fails silently if the yield is recursive.
+//-----------------------------------------------------------------------------
+
+bool wxYieldIfNeeded()
+{
+    if (gs_inYield)
+        return FALSE;
+
+    return wxYield();
+}
+
 //-----------------------------------------------------------------------------
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
@@ -149,7 +168,7 @@ void wxWakeUpIdle()
 gint wxapp_pending_callback( gpointer WXUNUSED(data) )
 {
     if (!wxTheApp) return TRUE;
-    
+
     // 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
@@ -175,8 +194,19 @@ gint wxapp_pending_callback( gpointer WXUNUSED(data) )
 
 gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 {
-    if (!wxTheApp) return TRUE;
-    
+    if (!wxTheApp)
+        return TRUE;
+
+#ifdef __WXDEBUG__
+    // don't generate the idle events while the assert modal dialog is shown,
+    // this completely confuses the apps which don't expect to be reentered
+    // from some safely-looking functions
+    if ( wxTheApp->IsInAssert() )
+    {
+        return TRUE;
+    }
+#endif // __WXDEBUG__
+
     // 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
@@ -190,8 +220,9 @@ gint wxapp_idle_callback( gpointer WXUNUSED(data) )
     g_isIdle = TRUE;
     wxTheApp->m_idleTag = 0;
 
-    // Sent idle event to all who request them
-    while (wxTheApp->ProcessIdle()) { }
+    // Sent idle event to all who request them as long as they do
+    while (wxTheApp->ProcessIdle())
+        ;
 
     // Release lock again
     gdk_threads_leave();
@@ -209,7 +240,7 @@ void wxapp_install_idle_handler()
 
     if (g_pendingTag == 0)
         g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL );
-        
+
     /* 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
@@ -226,7 +257,7 @@ static int g_threadUninstallLevel = 0;
 void wxapp_install_thread_wakeup()
 {
     g_threadUninstallLevel++;
-    
+
     if (g_threadUninstallLevel != 1) return;
 
     if (wxTheApp->m_wakeUpTimerTag) return;
@@ -237,7 +268,7 @@ void wxapp_install_thread_wakeup()
 void wxapp_uninstall_thread_wakeup()
 {
     g_threadUninstallLevel--;
-    
+
     if (g_threadUninstallLevel != 0) return;
 
     if (!wxTheApp->m_wakeUpTimerTag) return;
@@ -290,10 +321,10 @@ END_EVENT_TABLE()
 
 wxApp::wxApp()
 {
-    wxTheApp = this;
-
-    m_topWindow = (wxWindow *) NULL;
-    m_exitOnFrameDelete = TRUE;
+    m_initialized = FALSE;
+#ifdef __WXDEBUG__
+    m_isInAssert = FALSE;
+#endif // __WXDEBUG__
 
     m_idleTag = 0;
     wxapp_install_idle_handler();
@@ -304,8 +335,6 @@ wxApp::wxApp()
 #endif
 
     m_colorCube = (unsigned char*) NULL;
-
-    m_useBestVisual = FALSE;
 }
 
 wxApp::~wxApp()
@@ -321,6 +350,9 @@ wxApp::~wxApp()
 
 bool wxApp::OnInitGui()
 {
+    if ( !wxAppBase::OnInitGui() )
+        return FALSE;
+
     GdkVisual *visual = gdk_visual_get_system();
 
     /* on some machines, the default visual is just 256 colours, so
@@ -530,6 +562,10 @@ bool wxApp::Initialize()
     wxClassInfo::InitializeClasses();
 
     wxSystemSettings::Init();
+    
+#if wxUSE_INTL
+    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
+#endif
 
     // GL: I'm annoyed ... I don't know where to put this and I don't want to
     // create a module for that as it's part of the core.
@@ -607,6 +643,19 @@ void wxApp::CleanUp()
 #endif // wxUSE_LOG
 }
 
+//-----------------------------------------------------------------------------
+// Access to the root window global
+//-----------------------------------------------------------------------------
+
+GtkWidget* wxGetRootWindow()
+{
+    if (gs_RootWindow == NULL) {
+        gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+        gtk_widget_realize( gs_RootWindow );
+    }
+    return gs_RootWindow;
+}
+
 //-----------------------------------------------------------------------------
 // wxEntry
 //-----------------------------------------------------------------------------
@@ -630,11 +679,14 @@ int wxEntryStart( int argc, char *argv[] )
 
     gtk_set_locale();
 
+    // We should have the wxUSE_WCHAR_T test on the _outside_
+#if wxUSE_WCHAR_T
 #if defined(__WXGTK20__)
     // gtk+ 2.0 supports Unicode through UTF-8 strings
     wxConvCurrent = &wxConvUTF8;
-#elif wxUSE_WCHAR_T
+#else
     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
+#endif
 #else
     if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
 #endif
@@ -662,8 +714,7 @@ int wxEntryInitGui()
     if ( !wxTheApp->OnInitGui() )
         retValue = -1;
 
-    wxRootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
-    gtk_widget_realize( wxRootWindow );
+    wxGetRootWindow();
 
     return retValue;
 }
@@ -816,3 +867,17 @@ wxApp::GetStdIcon(int which) const
             return wxIcon(error_xpm);
     }
 }
+
+#ifdef __WXDEBUG__
+
+void wxApp::OnAssert(const wxChar *file, int line, const wxChar *msg)
+{
+    m_isInAssert = TRUE;
+
+    wxAppBase::OnAssert(file, line, msg);
+
+    m_isInAssert = FALSE;
+}
+
+#endif // __WXDEBUG__
+