fixed crash in OnSize() handler

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

diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index 866d2b4f8b1dd47f9d6ecc10619c70accdfc32b3..e9f5e00cbb15dbe7c95db0e3c90072d2eb5c125d 100644 (file)
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -216,6 +216,11 @@ static bool g_captureWindowHasMouse = FALSE;
 // keeps its previous value
 static wxWindowGTK *g_focusWindowLast = (wxWindowGTK *)NULL;
 
 // keeps its previous value
 static wxWindowGTK *g_focusWindowLast = (wxWindowGTK *)NULL;
 

+// the frame that is currently active (i.e. its child has focus). It is
+// used to generate wxActivateEvents
+static wxWindowGTK *g_activeFrame = (wxWindowGTK *)NULL;
+static bool g_activeFrameLostFocus = FALSE;
+

 // if we detect that the app has got/lost the focus, we set this variable to
 // either TRUE or FALSE and an activate event will be sent during the next
 // OnIdle() call and it is reset to -1: this value means that we shouldn't
 // if we detect that the app has got/lost the focus, we set this variable to
 // either TRUE or FALSE and an activate event will be sent during the next
 // OnIdle() call and it is reset to -1: this value means that we shouldn't


@@ -358,6 +363,16 @@ wxWindow *wxFindFocusedChild(wxWindowGTK *win)
     return (wxWindow *)NULL;
 }
 
     return (wxWindow *)NULL;
 }
 

+// Returns toplevel grandparent of given window:
+static wxWindowGTK* wxGetTopLevelParent(wxWindowGTK *win)
+{
+    wxWindowGTK *p = win;
+    while (p && !p->IsTopLevel())
+         p = p->GetParent();
+    return p;
+}
+
+

 static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
 {
     // wxUniversal widgets draw the borders and scrollbars themselves
 static void draw_frame( GtkWidget *widget, wxWindowGTK *win )
 {
     // wxUniversal widgets draw the borders and scrollbars themselves


@@ -472,7 +487,7 @@ static void gtk_window_own_draw_callback( GtkWidget *widget, GdkRectangle *WXUNU
 static long map_to_unmodified_wx_keysym( GdkEventKey *event )
 {
     KeySym keysym = event->keyval;
 static long map_to_unmodified_wx_keysym( GdkEventKey *event )
 {
     KeySym keysym = event->keyval;

-    guint key_code = 0;
+    long key_code;

 
     switch (keysym)
     {
 
     switch (keysym)
     {


@@ -566,21 +581,19 @@ static long map_to_unmodified_wx_keysym( GdkEventKey *event )
         case GDK_F11:           key_code = WXK_F11;         break;
         case GDK_F12:           key_code = WXK_F12;         break;
         default:
         case GDK_F11:           key_code = WXK_F11;         break;
         case GDK_F12:           key_code = WXK_F12;         break;
         default:

-        {
-        if (event->length == 1)
-        {
-            key_code = toupper( (unsigned char)*event->string );
-        }
-        else if ((keysym & 0xFF) == keysym)
+            if ( (keysym & 0xFF) == keysym )

             {
                 guint upper = gdk_keyval_to_upper( (guint)keysym );
             {
                 guint upper = gdk_keyval_to_upper( (guint)keysym );

-                keysym = (upper != 0 ? upper : keysym ); /* to be MSW compatible */
-                key_code = (guint)keysym;
+                key_code = upper ? upper : keysym;
+            }
+            else
+            {
+                // unknown key code
+                key_code = 0;

             }
             }

-        }

     }
 
     }
 

-    return (key_code);
+    return key_code;

 }
 
 static long map_to_wx_keysym( GdkEventKey *event )
 }
 
 static long map_to_wx_keysym( GdkEventKey *event )


@@ -670,19 +683,17 @@ static long map_to_wx_keysym( GdkEventKey *event )
         case GDK_F11:           key_code = WXK_F11;         break;
         case GDK_F12:           key_code = WXK_F12;         break;
         default:
         case GDK_F11:           key_code = WXK_F11;         break;
         case GDK_F12:           key_code = WXK_F12;         break;
         default:

-        {
-        if (event->length == 1)
-        {
-            key_code = (unsigned char)*event->string;
-        }
-        else if ((keysym & 0xFF) == keysym)
+            if (event->length == 1)
+            {
+                key_code = (unsigned char)*event->string;
+            }
+            else if ((keysym & 0xFF) == keysym)

             {
                 key_code = (guint)keysym;
             }
             {
                 key_code = (guint)keysym;
             }

-        }

     }
 
     }
 

-    return (key_code);
+    return key_code;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -952,6 +963,9 @@ static void gtk_window_draw_callback( GtkWidget *widget,
 // "key_press_event" from any window
 //-----------------------------------------------------------------------------
 
 // "key_press_event" from any window
 //-----------------------------------------------------------------------------
 

+// turn on to see the key event codes on the console
+#undef DEBUG_KEY_EVENTS
+

 static gint gtk_window_key_press_callback( GtkWidget *widget,
                                            GdkEventKey *gdk_event,
                                            wxWindow *win )
 static gint gtk_window_key_press_callback( GtkWidget *widget,
                                            GdkEventKey *gdk_event,
                                            wxWindow *win )


@@ -965,23 +979,23 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
     if (g_blockEventsOnDrag) return FALSE;
 
 
     if (g_blockEventsOnDrag) return FALSE;
 
 

-/*
-    wxString tmp;
-    tmp += (char)gdk_event->keyval;
-    printf( "KeyDown-Code is: %s.\n", tmp.c_str() );
-    printf( "KeyDown-ScanCode is: %d.\n", gdk_event->keyval );
-*/
-

     int x = 0;
     int y = 0;
     GdkModifierType state;
     int x = 0;
     int y = 0;
     GdkModifierType state;

-    if (gdk_event->window) gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
+    if (gdk_event->window)
+        gdk_window_get_pointer(gdk_event->window, &x, &y, &state);

 
     bool ret = FALSE;
 
     long key_code = map_to_unmodified_wx_keysym( gdk_event );
 
     bool ret = FALSE;
 
     long key_code = map_to_unmodified_wx_keysym( gdk_event );

+
+#ifdef DEBUG_KEY_EVENTS
+    wxPrintf(_T("Key press event: %d => %ld\n"), gdk_event->keyval, key_code);
+#endif // DEBUG_KEY_EVENTS
+

     /* sending unknown key events doesn't really make sense */
     /* sending unknown key events doesn't really make sense */

-    if (key_code == 0) return FALSE;
+    if (key_code == 0)
+        return FALSE;

 
     wxKeyEvent event( wxEVT_KEY_DOWN );
     event.SetTimestamp( gdk_event->time );
 
     wxKeyEvent event( wxEVT_KEY_DOWN );
     event.SetTimestamp( gdk_event->time );


@@ -1016,39 +1030,37 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
     }
 #endif // wxUSE_ACCEL
 
     }
 #endif // wxUSE_ACCEL
 

-    /* wxMSW doesn't send char events with Alt pressed */

     /* Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
        will only be sent if it is not in an accelerator table. */
     /* Only send wxEVT_CHAR event if not processed yet. Thus, ALT-x
        will only be sent if it is not in an accelerator table. */

-    key_code = map_to_wx_keysym( gdk_event );
+    if ( !ret )
+    {
+        key_code = map_to_wx_keysym( gdk_event );

 
 

-    if ( (!ret) &&
-         (key_code != 0))
-    {
-        wxKeyEvent event2( wxEVT_CHAR );
-        event2.SetTimestamp( gdk_event->time );
-        event2.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
-        event2.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
-        event2.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
-        event2.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
-        event2.m_keyCode = key_code;
-        event2.m_scanCode = gdk_event->keyval;
-        event2.m_x = x;
-        event2.m_y = y;
-        event2.SetEventObject( win );
-        ret = win->GetEventHandler()->ProcessEvent( event2 );
+        if ( key_code )
+        {
+#ifdef DEBUG_KEY_EVENTS
+            wxPrintf(_T("Char event: %ld\n"), key_code);
+#endif // DEBUG_KEY_EVENTS
+
+            // reuse the ame event object, just change its type and use the
+            // translated keycode instead of the raw one
+            event.SetEventType(wxEVT_CHAR);
+            event.m_keyCode = key_code;
+
+            ret = win->GetEventHandler()->ProcessEvent( event );
+        }

     }
 
     /* win is a control: tab can be propagated up */
     }
 
     /* win is a control: tab can be propagated up */

-    if ( (!ret) &&
+    if ( !ret &&

          ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab)) &&
 // VZ: testing for wxTE_PROCESS_TAB shouldn't be done here the control may
 //     have this style, yet choose not to process this particular TAB in which
 //     case TAB must still work as a navigational character
 #if 0
          ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab)) &&
 // VZ: testing for wxTE_PROCESS_TAB shouldn't be done here the control may
 //     have this style, yet choose not to process this particular TAB in which
 //     case TAB must still work as a navigational character
 #if 0

-         (!win->HasFlag(wxTE_PROCESS_TAB)) &&
+         !win->HasFlag(wxTE_PROCESS_TAB) &&

 #endif // 0
 #endif // 0

-         (win->GetParent()) &&
-         (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
+         win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )

     {
         wxNavigationKeyEvent new_event;
         new_event.SetEventObject( win->GetParent() );
     {
         wxNavigationKeyEvent new_event;
         new_event.SetEventObject( win->GetParent() );


@@ -1061,7 +1073,7 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
     }
 
     /* generate wxID_CANCEL if <esc> has been pressed (typically in dialogs) */
     }
 
     /* generate wxID_CANCEL if <esc> has been pressed (typically in dialogs) */

-    if ( (!ret) &&
+    if ( !ret &&

          (gdk_event->keyval == GDK_Escape) )
     {
         wxCommandEvent new_event(wxEVT_COMMAND_BUTTON_CLICKED,wxID_CANCEL);
          (gdk_event->keyval == GDK_Escape) )
     {
         wxCommandEvent new_event(wxEVT_COMMAND_BUTTON_CLICKED,wxID_CANCEL);


@@ -1069,10 +1081,9 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
         ret = win->GetEventHandler()->ProcessEvent( new_event );
     }
 
         ret = win->GetEventHandler()->ProcessEvent( new_event );
     }
 

-#if (GTK_MINOR_VERSION > 0)
-    /* Pressing F10 will activate the menu bar of the top frame. */

     /* Doesn't work. */
     /* Doesn't work. */

-/*
+#if 0 // (GTK_MINOR_VERSION > 0)
+    /* Pressing F10 will activate the menu bar of the top frame. */

     if ( (!ret) &&
          (gdk_event->keyval == GDK_F10) )
     {
     if ( (!ret) &&
          (gdk_event->keyval == GDK_F10) )
     {


@@ -1098,8 +1109,7 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
             ancestor = ancestor->GetParent();
         }
     }
             ancestor = ancestor->GetParent();
         }
     }

-*/
-#endif
+#endif // 0

 
     if (ret)
     {
 
     if (ret)
     {


@@ -1124,28 +1134,20 @@ static gint gtk_window_key_release_callback( GtkWidget *widget, GdkEventKey *gdk
     if (!win->m_hasVMT) return FALSE;
     if (g_blockEventsOnDrag) return FALSE;
 
     if (!win->m_hasVMT) return FALSE;
     if (g_blockEventsOnDrag) return FALSE;
 

-/*
-    printf( "KeyUp-ScanCode is: %d.\n", gdk_event->keyval );
-    if (gdk_event->state & GDK_SHIFT_MASK)
-      printf( "ShiftDown.\n" );
-    else
-      printf( "ShiftUp.\n" );
-    if (gdk_event->state & GDK_CONTROL_MASK)
-      printf( "ControlDown.\n" );
-    else
-      printf( "ControlUp.\n" );
-    printf( "\n" );
-*/
-

     long key_code = map_to_unmodified_wx_keysym( gdk_event );
 
     long key_code = map_to_unmodified_wx_keysym( gdk_event );
 

+#ifdef DEBUG_KEY_EVENTS
+    wxPrintf(_T("Key release event: %d => %ld\n"), gdk_event->keyval, key_code);
+#endif // DEBUG_KEY_EVENTS
+

     /* sending unknown key events doesn't really make sense */
     if (key_code == 0) return FALSE;
 
     int x = 0;
     int y = 0;
     GdkModifierType state;
     /* sending unknown key events doesn't really make sense */
     if (key_code == 0) return FALSE;
 
     int x = 0;
     int y = 0;
     GdkModifierType state;

-    if (gdk_event->window) gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
+    if (gdk_event->window)
+        gdk_window_get_pointer(gdk_event->window, &x, &y, &state);

 
     wxKeyEvent event( wxEVT_KEY_UP );
     event.SetTimestamp( gdk_event->time );
 
     wxKeyEvent event( wxEVT_KEY_UP );
     event.SetTimestamp( gdk_event->time );


@@ -1709,14 +1711,25 @@ static gint gtk_window_focus_in_callback( GtkWidget *widget,
     }
 #endif // wxUSE_CARET
 
     }
 #endif // wxUSE_CARET
 

-    if (win->IsTopLevel())
+    wxWindowGTK *active = wxGetTopLevelParent(win);
+    if ( active != g_activeFrame )

     {
     {

-        wxActivateEvent event( wxEVT_ACTIVATE, TRUE, win->GetId() );
-        event.SetEventObject( win );
+        if ( g_activeFrame )
+        {
+            wxLogTrace(wxT("activate"), wxT("Deactivating frame %p (from focus_in)"), g_activeFrame);
+            wxActivateEvent event(wxEVT_ACTIVATE, FALSE, g_activeFrame->GetId());
+            event.SetEventObject(g_activeFrame);
+            g_activeFrame->GetEventHandler()->ProcessEvent(event);
+        }

 
 

-        // ignore return value
-        win->GetEventHandler()->ProcessEvent( event );
+        wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), active);
+        g_activeFrame = active;
+        wxActivateEvent event(wxEVT_ACTIVATE, TRUE, g_activeFrame->GetId());
+        event.SetEventObject(g_activeFrame);
+        g_activeFrame->GetEventHandler()->ProcessEvent(event);

     }
     }

+    g_activeFrameLostFocus = FALSE;
+

 
     wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
     event.SetEventObject( win );
 
     wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
     event.SetEventObject( win );


@@ -1735,6 +1748,8 @@ static gint gtk_window_focus_in_callback( GtkWidget *widget,
 // "focus_out_event"
 //-----------------------------------------------------------------------------
 
 // "focus_out_event"
 //-----------------------------------------------------------------------------
 

+static GtkWidget *gs_widgetLastFocus = NULL;
+

 static gint gtk_window_focus_out_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxWindowGTK *win )
 {
     DEBUG_MAIN_THREAD
 static gint gtk_window_focus_out_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxWindowGTK *win )
 {
     DEBUG_MAIN_THREAD


@@ -1745,6 +1760,24 @@ static gint gtk_window_focus_out_callback( GtkWidget *widget, GdkEvent *WXUNUSED
     if (!win->m_hasVMT) return FALSE;
     if (g_blockEventsOnDrag) return FALSE;
 
     if (!win->m_hasVMT) return FALSE;
     if (g_blockEventsOnDrag) return FALSE;
 

+    // VZ: this is really weird but GTK+ seems to call us from inside
+    //     gtk_widget_grab_focus(), i.e. it first sends "focus_out" signal to
+    //     this widget and then "focus_in". This is totally unexpected and
+    //     completely breaks wxUniv code so ignore this dummy event (we can't
+    //     be losing focus if we're about to acquire it!)
+    if ( widget == gs_widgetLastFocus )
+    {
+        gs_widgetLastFocus = NULL;
+
+        return FALSE;
+    }
+
+    if ( !g_activeFrameLostFocus && g_activeFrame )
+    {
+        wxASSERT_MSG( wxGetTopLevelParent(win) == g_activeFrame, wxT("unfocusing window that haven't gained focus properly") )
+        g_activeFrameLostFocus = TRUE;
+    }
+

     // if the focus goes out of our app alltogether, OnIdle() will send
     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
     // g_sendActivateEvent to -1
     // if the focus goes out of our app alltogether, OnIdle() will send
     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
     // g_sendActivateEvent to -1


@@ -1777,15 +1810,6 @@ static gint gtk_window_focus_out_callback( GtkWidget *widget, GdkEvent *WXUNUSED
     }
 #endif // wxUSE_CARET
 
     }
 #endif // wxUSE_CARET
 

-    if (win->IsTopLevel())
-    {
-        wxActivateEvent event( wxEVT_ACTIVATE, FALSE, win->GetId() );
-        event.SetEventObject( win );
-
-        // ignore return value
-        win->GetEventHandler()->ProcessEvent( event );
-    }
-

     wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
     event.SetEventObject( win );
 
     wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
     event.SetEventObject( win );
 


@@ -2477,6 +2501,9 @@ wxWindowGTK::~wxWindowGTK()
     if (g_focusWindow == this)
         g_focusWindow = NULL;
 
     if (g_focusWindow == this)
         g_focusWindow = NULL;
 

+    if (g_activeFrame == this)
+        g_activeFrame = NULL;
+

     m_isBeingDeleted = TRUE;
     m_hasVMT = FALSE;
 
     m_isBeingDeleted = TRUE;
     m_hasVMT = FALSE;
 


@@ -2690,10 +2717,12 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
     if (m_resizing) return; /* I don't like recursions */
     m_resizing = TRUE;
 
     if (m_resizing) return; /* I don't like recursions */
     m_resizing = TRUE;
 

-    if (x == -1) 
-        x = m_x;
+    int currentX, currentY;
+    GetPosition(&currentX, &currentY);
+    if (x == -1)
+        x = currentX;

     if (y == -1)
     if (y == -1)

-        y = m_y;
+        y = currentY;

     AdjustForParentClientOrigin(x, y, sizeFlags);
 
     if (m_parent->m_wxwindow == NULL) /* i.e. wxNotebook */
     AdjustForParentClientOrigin(x, y, sizeFlags);
 
     if (m_parent->m_wxwindow == NULL) /* i.e. wxNotebook */


@@ -2794,6 +2823,19 @@ void wxWindowGTK::OnInternalIdle()
         wxTheApp->SetActive(activate, (wxWindow *)g_focusWindowLast);
     }
 
         wxTheApp->SetActive(activate, (wxWindow *)g_focusWindowLast);
     }
 

+    if ( g_activeFrameLostFocus )
+    {
+        if ( g_activeFrame )
+        {
+            wxLogTrace(wxT("activate"), wxT("Deactivating frame %p (from idle)"), g_activeFrame);
+            wxActivateEvent event(wxEVT_ACTIVATE, FALSE, g_activeFrame->GetId());
+            event.SetEventObject(g_activeFrame);
+            g_activeFrame->GetEventHandler()->ProcessEvent(event);
+            g_activeFrame = NULL;
+        }
+        g_activeFrameLostFocus = FALSE;
+    }
+

     wxCursor cursor = m_cursor;
     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 
     wxCursor cursor = m_cursor;
     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 


@@ -2986,7 +3028,7 @@ void wxWindowGTK::DoGetPosition( int *x, int *y ) const
         dx = pizza->xoffset;
         dy = pizza->yoffset;
     }
         dx = pizza->xoffset;
         dy = pizza->yoffset;
     }

-
+    

     if (x) (*x) = m_x - dx;
     if (y) (*y) = m_y - dy;
 }
     if (x) (*x) = m_x - dx;
     if (y) (*y) = m_y - dy;
 }


@@ -3151,11 +3193,13 @@ void wxWindowGTK::SetFocus()
     if (m_wxwindow)
     {
         if (!GTK_WIDGET_HAS_FOCUS (m_wxwindow))
     if (m_wxwindow)
     {
         if (!GTK_WIDGET_HAS_FOCUS (m_wxwindow))

+        {
+            // see comment in gtk_window_focus_out_callback()
+            gs_widgetLastFocus = m_wxwindow;

             gtk_widget_grab_focus (m_wxwindow);
             gtk_widget_grab_focus (m_wxwindow);

-        return;
+        }

     }
     }

-
-    if (m_widget)
+    else if (m_widget)

     {
         if (GTK_WIDGET_CAN_FOCUS(m_widget) && !GTK_WIDGET_HAS_FOCUS (m_widget) )
         {
     {
         if (GTK_WIDGET_CAN_FOCUS(m_widget) && !GTK_WIDGET_HAS_FOCUS (m_widget) )
         {