X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2d4dc3a4d0780f9d25804d93b0f1d9da59afa289..1c405bb51093fc7812fb66e7d47faac5707e02b5:/src/gtk/app.cpp?ds=sidebyside

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 65460281f1..86a0258e1b 100644
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -28,17 +28,20 @@
 #include "wx/module.h"
 #include "wx/image.h"
 
+#ifdef __WXUNIVERSAL__
+    #include "wx/univ/theme.h"
+    #include "wx/univ/renderer.h"
+#endif
+
 #if wxUSE_THREADS
     #include "wx/thread.h"
 #endif
 
 #include <unistd.h>
+#include "wx/gtk/win_gtk.h"
 
-#include <glib.h>
-#include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
-#include "wx/gtk/win_gtk.h"
 
 //-----------------------------------------------------------------------------
 // global data
@@ -49,21 +52,24 @@ wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NUL
 
 extern bool g_isIdle;
 
-bool g_mainThreadLocked = FALSE;
+bool   g_mainThreadLocked = FALSE;
+gint   g_pendingTag = 0;
 
-GtkWidget *wxRootWindow = (GtkWidget*) NULL;
+static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;
 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 
-/* forward declaration */
-gint   wxapp_idle_callback( gpointer WXUNUSED(data) );
-void   wxapp_install_idle_handler();
+extern "C"
+{
+    gint wxapp_idle_callback( gpointer WXUNUSED(data) );
+    gint wxapp_pending_callback( gpointer WXUNUSED(data) );
+}
 
-#if wxUSE_THREADS
-gint   wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) );
-#endif
+void wxapp_install_thread_wakeup();
+void wxapp_uninstall_thread_wakeup();
+void wxapp_install_idle_handler();
 
 //-----------------------------------------------------------------------------
 // wxExit
@@ -78,40 +84,59 @@ void wxExit()
 // wxYield
 //-----------------------------------------------------------------------------
 
-bool wxYield()
+bool wxApp::Yield(bool onlyIfNeeded)
 {
-    bool has_idle = (wxTheApp->m_idleTag != 0);
+    // MT-FIXME
+    static bool s_inYield = FALSE;
 
-    if (has_idle)
+    if ( s_inYield )
     {
-        /* We need to temporarily remove idle callbacks or the loop will
-           never finish. */
-        gtk_idle_remove( wxTheApp->m_idleTag );
-        wxTheApp->m_idleTag = 0;
+        if ( !onlyIfNeeded )
+        {
+            wxFAIL_MSG( wxT("wxYield called recursively" ) );
+        }
+
+        return FALSE;
     }
 
-    while (gtk_events_pending())
-        gtk_main_iteration();
+#if wxUSE_THREADS
+    if ( !wxThread::IsMain() )
+    {
+        // can't call gtk_main_iteration() from other threads like this
+        return TRUE;
+    }
+#endif // wxUSE_THREADS
+
+    s_inYield = TRUE;
 
-    if (has_idle)
+    if (!g_isIdle)
     {
-        /* re-add idle handler (very low priority) */
-        wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
+        // We need to remove idle callbacks or the loop will
+        // never finish.
+        gtk_idle_remove( m_idleTag );
+        m_idleTag = 0;
+        g_isIdle = TRUE;
     }
 
     // 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) */
-    while (wxTheApp->ProcessIdle())
-        ;
+    while ( ProcessIdle() )
+    {
+    }
 
     // let the logs be flashed again
     wxLog::Resume();
 
+    s_inYield = FALSE;
+
     return TRUE;
 }
 
@@ -139,7 +164,29 @@ void wxWakeUpIdle()
 // local functions
 //-----------------------------------------------------------------------------
 
-gint wxapp_idle_callback( gpointer WXUNUSED(data) )
+void wxapp_install_idle_handler()
+{
+    wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
+
+    g_isIdle = FALSE;
+
+    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
+       to the main thread (and processing these in
+       idle time). Very low priority. */
+
+    wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
+}
+
+// the callback functions must be extern "C" to comply with GTK+ declarations
+extern "C"
+{
+
+gint wxapp_pending_callback( gpointer WXUNUSED(data) )
 {
     if (!wxTheApp) return TRUE;
 
@@ -148,58 +195,65 @@ gint wxapp_idle_callback( gpointer WXUNUSED(data) )
     // thread so we must lock it here ourselves
     gdk_threads_enter();
 
-    /* we don't want any more idle events until the next event is
-       sent to wxGTK */
-    gtk_idle_remove( wxTheApp->m_idleTag );
-    wxTheApp->m_idleTag = 0;
+    // Sent idle event to all who request them
+    wxTheApp->ProcessPendingEvents();
 
-    /* indicate that we are now in idle mode - even so deeply
-       in idle mode that we don't get any idle events anymore.
-       this is like wxMSW where an idle event is sent only
-       once each time after the event queue has been completely
-       emptied */
-    g_isIdle = TRUE;
+    g_pendingTag = 0;
 
-    /* sent idle event to all who request them */
-    while (wxTheApp->ProcessIdle()) { }
+    /* flush the logged messages if any */
+#if wxUSE_LOG
+    wxLog::FlushActive();
+#endif // wxUSE_LOG
 
-    // release lock again
+    // Release lock again
     gdk_threads_leave();
 
-    return TRUE;
+    // Return FALSE to indicate that no more idle events are
+    // to be sent (single shot instead of continuous stream)
+    return FALSE;
 }
 
-void wxapp_install_idle_handler()
+gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 {
-    wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
+    if (!wxTheApp)
+        return TRUE;
 
-    /* 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. */
+#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__
 
-    wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
+    // 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();
 
-    g_isIdle = FALSE;
-}
+    /* Indicate that we are now in idle mode - even so deeply
+       in idle mode that we don't get any idle events anymore.
+       this is like wxMSW where an idle event is sent only
+       once each time after the event queue has been completely
+       emptied */
+    g_isIdle = TRUE;
+    wxTheApp->m_idleTag = 0;
 
-#if wxUSE_THREADS
+    // Sent idle event to all who request them as long as they do
+    while (wxTheApp->ProcessIdle())
+        ;
 
-void wxapp_install_thread_wakeup()
-{
-    if (wxTheApp->m_wakeUpTimerTag) return;
+    // Release lock again
+    gdk_threads_leave();
 
-    wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 50, wxapp_wakeup_timerout_callback, (gpointer) NULL );
+    // Return FALSE to indicate that no more idle events are
+    // to be sent (single shot instead of continuous stream)
+    return FALSE;
 }
 
-void wxapp_uninstall_thread_wakeup()
-{
-    if (!wxTheApp->m_wakeUpTimerTag) return;
-
-    gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );
-    wxTheApp->m_wakeUpTimerTag = 0;
-}
+#if wxUSE_THREADS
 
 gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
 {
@@ -233,6 +287,51 @@ gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
 
 #endif // wxUSE_THREADS
 
+} // extern "C"
+
+#if wxUSE_THREADS
+
+static int g_threadUninstallLevel = 0;
+
+void wxapp_install_thread_wakeup()
+{
+    g_threadUninstallLevel++;
+
+    if (g_threadUninstallLevel != 1) return;
+
+    if (wxTheApp->m_wakeUpTimerTag) return;
+
+    wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 50, wxapp_wakeup_timerout_callback, (gpointer) NULL );
+}
+
+void wxapp_uninstall_thread_wakeup()
+{
+    g_threadUninstallLevel--;
+
+    if (g_threadUninstallLevel != 0) return;
+
+    if (!wxTheApp->m_wakeUpTimerTag) return;
+
+    gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );
+    wxTheApp->m_wakeUpTimerTag = 0;
+}
+
+#endif // wxUSE_THREADS
+
+//-----------------------------------------------------------------------------
+// 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;
+}
+
 //-----------------------------------------------------------------------------
 // wxApp
 //-----------------------------------------------------------------------------
@@ -245,12 +344,13 @@ END_EVENT_TABLE()
 
 wxApp::wxApp()
 {
-    wxTheApp = this;
+    m_initialized = FALSE;
+#ifdef __WXDEBUG__
+    m_isInAssert = FALSE;
+#endif // __WXDEBUG__
 
-    m_topWindow = (wxWindow *) NULL;
-    m_exitOnFrameDelete = TRUE;
-
-    m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
+    m_idleTag = 0;
+    wxapp_install_idle_handler();
 
 #if wxUSE_THREADS
     m_wakeUpTimerTag = 0;
@@ -258,8 +358,9 @@ wxApp::wxApp()
 #endif
 
     m_colorCube = (unsigned char*) NULL;
-
-    m_useBestVisual = FALSE;
+    
+    // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
+    m_glVisualInfo = (void *) NULL;
 }
 
 wxApp::~wxApp()
@@ -275,14 +376,35 @@ 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
-       we make sure we get the best. this can sometimes be wasteful,
-       of course, but what do these guys pay $30.000 for? */
+    // 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)
+    {
+#ifdef __WXGTK20__
+        // seems gtk_widget_set_default_visual no longer exists?
+        GdkVisual* vis = gtk_widget_get_default_visual();
+#else
+        GdkVisual* vis = gdkx_visual_get( 
+            ((XVisualInfo *) m_glVisualInfo) ->visualid );
+        gtk_widget_set_default_visual( vis );
+#endif
+
+        GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
+        gtk_widget_set_default_colormap( colormap );
+
+        visual = vis;
+    }
+    
+    // On some machines, the default visual is just 256 colours, so
+    // we make sure we get the best. This can sometimes be wasteful.
 
-    if ((gdk_visual_get_best() != gdk_visual_get_system()) &&
-        (m_useBestVisual))
+    else
+    if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual))
     {
 #ifdef __WXGTK20__
         /* seems gtk_widget_set_default_visual no longer exists? */
@@ -298,10 +420,10 @@ bool wxApp::OnInitGui()
         visual = vis;
     }
 
-    /* Nothing to do for 15, 16, 24, 32 bit displays */
+    // Nothing to do for 15, 16, 24, 32 bit displays
     if (visual->depth > 8) return TRUE;
 
-    /* initialize color cube for 8-bit color reduction dithering */
+    // initialize color cube for 8-bit color reduction dithering
 
     GdkColormap *cmap = gtk_widget_get_default_colormap();
 
@@ -338,16 +460,11 @@ bool wxApp::OnInitGui()
                 }
                 else
                 {
-#if (GTK_MINOR_VERSION > 0)
-                    /* assume 8-bit true or static colors. this really
-                       exists. */
+                    // assume 8-bit true or static colors. this really exists
                     GdkVisual* vis = gdk_colormap_get_visual( cmap );
                     index = (r >> (5 - vis->red_prec)) << vis->red_shift;
                     index |= (g >> (5 - vis->green_prec)) << vis->green_shift;
                     index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift;
-#else
-                    wxFAIL_MSG( wxT("Unsupported graphics hardware") );
-#endif
                 }
                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
             }
@@ -357,6 +474,20 @@ bool wxApp::OnInitGui()
     return TRUE;
 }
 
+GdkVisual *wxApp::GetGdkVisual()
+{
+    GdkVisual *visual = NULL;
+    
+    if (m_glVisualInfo)
+        visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid );
+    else
+        visual = gdk_window_get_visual( wxGetRootWindow()->window );
+        
+    wxASSERT( visual );
+    
+    return visual;
+}
+
 bool wxApp::ProcessIdle()
 {
     wxIdleEvent event;
@@ -390,11 +521,6 @@ void wxApp::OnIdle( wxIdleEvent &event )
         event.RequestMore(TRUE);
 
     s_inOnIdle = FALSE;
-
-    /* flush the logged messages if any */
-#if wxUSE_LOG
-    wxLog::FlushActive();
-#endif // wxUSE_LOG
 }
 
 bool wxApp::SendIdleEvents()
@@ -488,7 +614,9 @@ 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.
@@ -540,15 +668,13 @@ void wxApp::CleanUp()
     delete wxPendingEventsLocker;
 #endif
 
-    wxSystemSettings::Done();
-
     delete[] wxBuffer;
 
     wxClassInfo::CleanUpClasses();
 
     // check for memory leaks
 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
-    if (wxDebugContext::CountObjectsLeft() > 0)
+    if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
     {
         wxLogDebug(wxT("There were memory leaks.\n"));
         wxDebugContext::Dump();
@@ -570,21 +696,15 @@ void wxApp::CleanUp()
 // wxEntry
 //-----------------------------------------------------------------------------
 
-
-int wxEntryStart( int argc, char *argv[] )
+// NB: argc and argv may be changed here, pass by reference!
+int wxEntryStart( int& argc, char *argv[] )
 {
 #if wxUSE_THREADS
-    /* GTK 1.2 up to version 1.2.3 has broken threads */
-#ifdef __VMS__
-   if ((vms_gtk_major_version() == 1) &&
-        (vms_gtk_minor_version() == 2) &&
-        (vms_gtk_micro_version() < 4))
-#else
-   if ((gtk_major_version == 1) &&
+    // GTK 1.2 up to version 1.2.3 has broken threads
+    if ((gtk_major_version == 1) &&
         (gtk_minor_version == 2) &&
         (gtk_micro_version < 4))
-#endif
-     {
+    {
         printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
     }
     else
@@ -595,11 +715,14 @@ 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
@@ -627,8 +750,7 @@ int wxEntryInitGui()
     if ( !wxTheApp->OnInitGui() )
         retValue = -1;
 
-    wxRootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
-    gtk_widget_realize( wxRootWindow );
+    wxGetRootWindow();
 
     return retValue;
 }
@@ -656,9 +778,17 @@ void wxEntryCleanup()
 }
 
 
-
 int wxEntry( int argc, char *argv[] )
 {
+#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+    // This seems to be necessary since there are 'rogue'
+    // objects present at this point (perhaps global objects?)
+    // Setting a checkpoint will ignore them as far as the
+    // memory checking facility is concerned.
+    // Of course you may argue that memory allocated in globals should be
+    // checked, but this is a reasonable compromise.
+    wxDebugContext::SetCheckpoint();
+#endif
     int err = wxEntryStart(argc, argv);
     if (err)
         return err;
@@ -745,13 +875,19 @@ int wxEntry( int argc, char *argv[] )
     return retValue;
 }
 
+#ifndef __WXUNIVERSAL__
+
+// XPM hack: make the arrays const
+#define static static const
+
 #include "wx/gtk/info.xpm"
 #include "wx/gtk/error.xpm"
 #include "wx/gtk/question.xpm"
 #include "wx/gtk/warning.xpm"
 
-wxIcon
-wxApp::GetStdIcon(int which) const
+#undef static
+
+wxIcon wxApp::GetStdIcon(int which) const
 {
     switch(which)
     {
@@ -772,3 +908,24 @@ wxApp::GetStdIcon(int which) const
             return wxIcon(error_xpm);
     }
 }
+#else
+wxIcon wxApp::GetStdIcon(int which) const
+{
+    return wxTheme::Get()->GetRenderer()->GetStdIcon(which);
+}
+#endif // !__WXUNIVERSAL__
+
+
+#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__
+