Converting uninitialized data is not a Good Idea

[wxWidgets.git] / src / gtk / app.cpp

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index bb01f6b87295551dd9ed0f2f618766003a1f2fbc..0ef365ec055a62bd6ecd44daee068b277a3c089a 100644 (file)
--- 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
@@ -80,10 +83,21 @@ void wxExit()
 // wxYield
 //-----------------------------------------------------------------------------
 
-static bool gs_inYield = FALSE;
-
-bool wxYield()
+bool wxApp::Yield(bool onlyIfNeeded)
 {
+    // MT-FIXME
+    static bool s_inYield = FALSE;
+
+    if ( s_inYield )
+    {
+        if ( !onlyIfNeeded )
+        {
+            wxFAIL_MSG( wxT("wxYield called recursively" ) );
+        }
+
+        return FALSE;
+    }
+
 #if wxUSE_THREADS
     if ( !wxThread::IsMain() )
     {
@@ -92,55 +106,39 @@ bool wxYield()
     }
 #endif // wxUSE_THREADS
 
-#ifdef __WXDEBUG__
-    if (gs_inYield)
-        wxFAIL_MSG( wxT("wxYield called recursively" ) );
-#endif
-
-    gs_inYield = TRUE;
+    s_inYield = TRUE;
 
     if (!g_isIdle)
     {
         // We need to remove idle callbacks or the loop will
         // never finish.
-        gtk_idle_remove( wxTheApp->m_idleTag );
-        wxTheApp->m_idleTag = 0;
+        gtk_idle_remove( m_idleTag );
+        m_idleTag = 0;
         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) */
-    while (wxTheApp->ProcessIdle()) { }
+    while ( ProcessIdle() )
+    {
+    }
 
     // let the logs be flashed again
     wxLog::Resume();
 
-    gs_inYield = FALSE;
+    s_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
 //-----------------------------------------------------------------------------
@@ -198,12 +196,12 @@ gint wxapp_idle_callback( gpointer WXUNUSED(data) )
         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() )
     {
-        // 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
-        return FALSE;
+        return TRUE;
     }
 #endif // __WXDEBUG__
 
@@ -220,8 +218,9 @@ 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();
@@ -334,6 +333,9 @@ wxApp::wxApp()
 #endif
 
     m_colorCube = (unsigned char*) NULL;
+    
+    // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
+    m_glVisualInfo = (void *) NULL;
 }
 
 wxApp::~wxApp()
@@ -354,11 +356,29 @@ bool wxApp::OnInitGui()
 
     GdkVisual *visual = gdk_visual_get_system();
 
+    // 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,
        of course, but what do these guys pay $30.000 for? */
 
-    if ((gdk_visual_get_best() != gdk_visual_get_system()) &&
+    else if ((gdk_visual_get_best() != gdk_visual_get_system()) &&
         (m_useBestVisual))
     {
 #ifdef __WXGTK20__
@@ -839,13 +859,14 @@ int wxEntry( int argc, char *argv[] )
     return retValue;
 }
 
+#ifndef __WXUNIVERSAL__
+
 #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
+wxIcon wxApp::GetStdIcon(int which) const
 {
     switch(which)
     {
@@ -866,6 +887,13 @@ 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__