X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/da2101204027855793c4264388b95a208967ae15..9959e2b6aa19b1f113a0355e60aa53ad3d6b5fdf:/src/gtk1/window.cpp

diff --git a/src/gtk1/window.cpp b/src/gtk1/window.cpp
index 4c95bf0741..8947ad7008 100644
--- a/src/gtk1/window.cpp
+++ b/src/gtk1/window.cpp
@@ -965,6 +965,30 @@ static inline bool wxIsAsciiKeysym(KeySym ks)
     return ks < 256;
 }
 
+static void wxFillOtherKeyEventFields(wxKeyEvent& event,
+                                      wxWindowGTK *win,
+                                      GdkEventKey *gdk_event)
+{
+    int x = 0;
+    int y = 0;
+    GdkModifierType state;
+    if (gdk_event->window)
+        gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
+
+    event.SetTimestamp( gdk_event->time );
+    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
+    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
+    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
+    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK) != 0;
+    event.m_scanCode = gdk_event->keyval;
+    event.m_rawCode = (wxUint32) gdk_event->keyval;
+    event.m_rawFlags = 0;
+    event.m_x = x;
+    event.m_y = y;
+    event.SetEventObject( win );
+}
+
+
 static bool
 wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
                            wxWindowGTK *win,
@@ -1060,29 +1084,32 @@ wxTranslateGTKKeyEventToWx(wxKeyEvent& event,
         return FALSE;
 
     // now fill all the other fields
-    int x = 0;
-    int y = 0;
-    GdkModifierType state;
-    if (gdk_event->window)
-        gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
-
-    event.SetTimestamp( gdk_event->time );
-    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK) != 0;
-    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK) != 0;
-    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK) != 0;
-    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK) != 0;
+    wxFillOtherKeyEventFields(event, win, gdk_event);
+    
     event.m_keyCode = key_code;
-    event.m_scanCode = gdk_event->keyval;
-    event.m_rawCode = (wxUint32) gdk_event->keyval;
-    event.m_rawFlags = 0;
-    event.m_x = x;
-    event.m_y = y;
-    event.SetEventObject( win );
 
     return TRUE;
 }
 
 
+#ifdef __WXGTK20__
+struct wxGtkIMData
+{
+    GtkIMContext *context;
+    GdkEventKey  *lastKeyEvent;
+
+    wxGtkIMData()
+    {
+        context = gtk_im_multicontext_new();
+        lastKeyEvent = NULL;
+    }
+    ~wxGtkIMData()
+    {
+        g_object_unref(context);
+    }
+};
+#endif
+
 static gint gtk_window_key_press_callback( GtkWidget *widget,
                                            GdkEventKey *gdk_event,
                                            wxWindow *win )
@@ -1096,12 +1123,43 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
         return FALSE;
     if (g_blockEventsOnDrag)
         return FALSE;
-
-
+    
+#ifdef __WXGTK20__
+    // We have to pass key press events through GTK+'s Input Method context
+    // object in order to get correct characters. By doing so, we loose the
+    // ability to let other GTK+'s handlers (namely, widgets' default signal
+    // handlers) handle the signal by returning false from this callback.
+    // Because GTK+ sends the events to parent widgets as well, we can't
+    // afford loosing it, otherwise native widgets inserted into wxPanel
+    // would break in subtle ways (e.g. spacebar would no longer toggle
+    // wxCheckButton's state). Therefore, we only pass the event to IM if it
+    // originated in this window's widget, which we detect by checking if we've
+    // seen the same event before (no events from children are lost this way,
+    // because gtk_window_key_press_callback is installed for native controls
+    // as well and the wxKeyEvent it creates propagates upwards).
+    static GdkEventKey s_lastEvent;
+    
+    bool useIM = (win->m_imData != NULL) &&
+                 memcmp(gdk_event, &s_lastEvent, sizeof(GdkEventKey)) != 0;
+    
+    s_lastEvent = *gdk_event;
+#endif
+    
     wxKeyEvent event( wxEVT_KEY_DOWN );
     if ( !wxTranslateGTKKeyEventToWx(event, win, gdk_event) )
     {
         // unknown key pressed, ignore (the event would be useless anyhow)
+#ifdef __WXGTK20__
+        if ( useIM )
+        {
+            // it may be useful for the input method, though:
+            win->m_imData->lastKeyEvent = gdk_event;
+            bool ret = gtk_im_context_filter_keypress(win->m_imData->context,
+                                                      gdk_event);
+            win->m_imData->lastKeyEvent = NULL;
+            return ret;
+        }
+#endif
         return FALSE;
     }
 
@@ -1132,58 +1190,63 @@ static gint gtk_window_key_press_callback( GtkWidget *widget,
     // will only be sent if it is not in an accelerator table.
     if (!ret)
     {
-        long key_code;
-        KeySym keysym = gdk_event->keyval;
 #ifdef __WXGTK20__
-        // In GTK 2.0, we need to hand over the key event to an input method
-        // and the IM will emit a "commit" event containing the actual utf8
-        // character.  In that case the EVT_CHAR events will be sent from
-        // there.  But only do it this way for non-KeySym keys.
-        key_code = wxTranslateKeySymToWXKey(gdk_event->keyval, FALSE /* isChar */);
-        if ( !key_code && win->m_imContext )
+        if (useIM)
         {
-            gtk_im_context_filter_keypress(win->m_imContext, gdk_event );
-            ret = TRUE;
+            // In GTK 2.0, we need to hand over the key event to an input method
+            // and the IM will emit a "commit" event containing the actual utf8
+            // character.  In that case the EVT_CHAR events will be sent from
+            // there.
+            win->m_imData->lastKeyEvent = gdk_event;
+            if ( gtk_im_context_filter_keypress(win->m_imData->context,
+                                                gdk_event) )
+            {
+                win->m_imData->lastKeyEvent = NULL;
+                wxLogTrace(TRACE_KEYS, _T("Key event intercepted by IM"));
+                return TRUE;
+            }
+            else
+                win->m_imData->lastKeyEvent = NULL;
         }
-        else
 #endif
+
+        long key_code;
+        KeySym keysym = gdk_event->keyval;
+        // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
+        key_code = wxTranslateKeySymToWXKey(keysym, TRUE /* isChar */);
+        if ( !key_code )
         {
-            // Find key code for EVT_CHAR and EVT_CHAR_HOOK events
-            key_code = wxTranslateKeySymToWXKey(keysym, TRUE /* isChar */);
-            if ( !key_code )
+            if ( gdk_event->length == 1 )
             {
-                if ( gdk_event->length == 1 )
-                {
-                    key_code = (unsigned char)gdk_event->string[0];
-                }
-                else if ( wxIsAsciiKeysym(keysym) )
-                {
-                    // ASCII key
-                    key_code = (unsigned char)keysym;
-                }
+                key_code = (unsigned char)gdk_event->string[0];
             }
-
-            if ( key_code )
+            else if ( wxIsAsciiKeysym(keysym) )
             {
-                wxLogTrace(TRACE_KEYS, _T("Char event: %ld"), key_code);
+                // ASCII key
+                key_code = (unsigned char)keysym;
+            }
+        }
 
-                event.m_keyCode = key_code;
+        if ( key_code )
+        {
+            wxLogTrace(TRACE_KEYS, _T("Char event: %ld"), key_code);
 
-                // Implement OnCharHook by checking ancesteror top level windows
-                wxWindow *parent = win;
-                while (parent && !parent->IsTopLevel())
-                    parent = parent->GetParent();
-                if (parent)
-                {
-                    event.SetEventType( wxEVT_CHAR_HOOK );
-                    ret = parent->GetEventHandler()->ProcessEvent( event );
-                }
+            event.m_keyCode = key_code;
 
-                if (!ret)
-                {
-                    event.SetEventType(wxEVT_CHAR);
-                    ret = win->GetEventHandler()->ProcessEvent( event );
-                }
+            // Implement OnCharHook by checking ancesteror top level windows
+            wxWindow *parent = win;
+            while (parent && !parent->IsTopLevel())
+                parent = parent->GetParent();
+            if (parent)
+            {
+                event.SetEventType( wxEVT_CHAR_HOOK );
+                ret = parent->GetEventHandler()->ProcessEvent( event );
+            }
+
+            if (!ret)
+            {
+                event.SetEventType(wxEVT_CHAR);
+                ret = win->GetEventHandler()->ProcessEvent( event );
             }
         }
     }
@@ -1263,28 +1326,37 @@ static void gtk_wxwindow_commit_cb (GtkIMContext *context,
                            const gchar  *str,
                            wxWindow     *window)
 {
-    bool ret = FALSE;
-
     wxKeyEvent event( wxEVT_KEY_DOWN );
 
+    // take modifiers, cursor position, timestamp etc. from the last
+    // key_press_event that was fed into Input Method:
+    if (window->m_imData->lastKeyEvent)
+    {
+        wxFillOtherKeyEventFields(event,
+                                  window, window->m_imData->lastKeyEvent);
+    }
+
 #if wxUSE_UNICODE
     event.m_uniChar = g_utf8_get_char( str );
 
     // Backward compatible for ISO-8859
     if (event.m_uniChar < 256)
         event.m_keyCode = event.m_uniChar;
+    wxLogTrace(TRACE_KEYS, _T("IM sent character '%c'"), event.m_uniChar);
 #else
-    gunichar uniChar = g_utf8_get_char( str );
-    // We cannot handle Unicode in non-Unicode mode
-    if (uniChar > 255) return;
-
-    event.m_keyCode = uniChar;
-#endif
-
-
-    // TODO:  We still need to set all the extra attributes of the
-    //        event, modifiers and such...
+    wchar_t unistr[2];
+    unistr[0] = g_utf8_get_char(str);
+    unistr[1] = 0;
+    wxCharBuffer ansistr(wxConvLocal.cWC2MB(unistr));
+    // We cannot handle characters that cannot be represented in 
+    // current locale's charset in non-Unicode mode:
+    if (ansistr.data() == NULL)
+        return;
+    event.m_keyCode = ansistr[0u];
+    wxLogTrace(TRACE_KEYS, _T("IM sent character '%c'"), (wxChar)event.m_keyCode);
+#endif // wxUSE_UNICODE
 
+    bool ret = false;
 
     // Implement OnCharHook by checking ancestor top level windows
     wxWindow *parent = window;
@@ -1900,6 +1972,11 @@ static gint gtk_window_focus_in_callback( GtkWidget *widget,
     if (g_isIdle)
         wxapp_install_idle_handler();
 
+#ifdef __WXGTK20__
+    if (win->m_imData)
+        gtk_im_context_focus_in(win->m_imData->context);
+#endif
+
     if (!win->m_hasVMT) return FALSE;
     if (g_blockEventsOnDrag) return FALSE;
 
@@ -1988,6 +2065,11 @@ static gint gtk_window_focus_out_callback( GtkWidget *widget, GdkEventFocus *gdk
     if (g_isIdle)
         wxapp_install_idle_handler();
 
+#ifdef __WXGTK20__
+    if (win->m_imData)
+        gtk_im_context_focus_out(win->m_imData->context);
+#endif
+
     if (!win->m_hasVMT) return FALSE;
     if (g_blockEventsOnDrag) return FALSE;
 
@@ -2308,10 +2390,11 @@ gtk_window_realized_callback( GtkWidget *m_widget, wxWindow *win )
         wxapp_install_idle_handler();
         
 #ifdef __WXGTK20__
-    if (win->m_imContext)
+    if (win->m_imData)
     {
         GtkPizza *pizza = GTK_PIZZA( m_widget );
-        gtk_im_context_set_client_window( win->m_imContext, pizza->bin_window );
+        gtk_im_context_set_client_window( win->m_imData->context,
+                                          pizza->bin_window );
     }
 #endif
 
@@ -2570,8 +2653,9 @@ void wxWindowGTK::Init()
     m_cursor = *wxSTANDARD_CURSOR;
 
 #ifdef __WXGTK20__
-    m_imContext = NULL;
+    m_imData = NULL;
     m_x11Context = NULL;
+    m_dirtyTabOrder = false;
 #else
 #ifdef HAVE_XIM
     m_ic = (GdkIC*) NULL;
@@ -2695,17 +2779,6 @@ bool wxWindowGTK::Create( wxWindow *parent,
     gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed",
           (GtkSignalFunc) gtk_window_vscroll_callback, (gpointer) this );
 
-#ifdef __WXGTK20__
-    // Create input method handler
-    m_imContext = gtk_im_multicontext_new();
-
-    // Cannot handle drawing preedited text yet
-    gtk_im_context_set_use_preedit( m_imContext, FALSE );
-
-    g_signal_connect (G_OBJECT (m_imContext), "commit",
-                      G_CALLBACK (gtk_wxwindow_commit_cb), this);
-#endif
-
     gtk_widget_show( m_wxwindow );
 
     if (m_parent)
@@ -2757,6 +2830,10 @@ wxWindowGTK::~wxWindowGTK()
         gtk_widget_destroy( m_widget );
         m_widget = (GtkWidget*) NULL;
     }
+
+#ifdef __WXGTK20__
+    delete m_imData;
+#endif
 }
 
 bool wxWindowGTK::PreCreation( wxWindowGTK *parent, const wxPoint &pos,  const wxSize &size )
@@ -2801,18 +2878,18 @@ void wxWindowGTK::PostCreation()
 #else
             // gtk_widget_set_redraw_on_allocate( GTK_WIDGET(m_wxwindow), !HasFlag( wxFULL_REPAINT_ON_RESIZE ) );
 #endif
+        }
 
 #ifdef __WXGTK20__
         // Create input method handler
-        m_imContext = gtk_im_multicontext_new();
+        m_imData = new wxGtkIMData;
 
         // Cannot handle drawing preedited text yet
-        gtk_im_context_set_use_preedit( m_imContext, FALSE );
+        gtk_im_context_set_use_preedit( m_imData->context, FALSE );
 
-        g_signal_connect (G_OBJECT (m_imContext), "commit",
+        g_signal_connect (G_OBJECT (m_imData->context), "commit",
                           G_CALLBACK (gtk_wxwindow_commit_cb), this);
 #endif
-        }
 
         // these are called when the "sunken" or "raised" borders are drawn
         gtk_signal_connect( GTK_OBJECT(m_widget), "expose_event",
@@ -3040,6 +3117,11 @@ void wxWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags
 
 void wxWindowGTK::OnInternalIdle()
 {
+#ifdef __WXGTK20__
+    if ( m_dirtyTabOrder )
+        RealizeTabOrder();
+#endif
+
     // Update invalidated regions.
     GtkUpdate();
 
@@ -3408,7 +3490,7 @@ int wxWindowGTK::GetCharHeight() const
 
     g_object_unref( G_OBJECT( layout ) );
 
-    return (int) (rect.height / PANGO_SCALE);
+    return (int) PANGO_PIXELS(rect.height);
 #else
     GdkFont *gfont = font.GetInternalFont( 1.0 );
 
@@ -3442,7 +3524,7 @@ int wxWindowGTK::GetCharWidth() const
 
     g_object_unref( G_OBJECT( layout ) );
 
-    return (int) (rect.width / PANGO_SCALE);
+    return (int) PANGO_PIXELS(rect.width);
 #else
     GdkFont *gfont = font.GetInternalFont( 1.0 );
 
@@ -3493,17 +3575,18 @@ void wxWindowGTK::GetTextExtent( const wxString& string,
         pango_layout_set_text(layout, (const char*) data, strlen( (const char*) data ));
 #endif
     }
-    PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
 
     PangoRectangle rect;
-    pango_layout_line_get_extents(line, NULL, &rect);
+    pango_layout_get_extents(layout, NULL, &rect);
 
-    if (x) (*x) = (wxCoord) (rect.width / PANGO_SCALE);
-    if (y) (*y) = (wxCoord) (rect.height / PANGO_SCALE);
+    if (x) (*x) = (wxCoord) PANGO_PIXELS(rect.width);
+    if (y) (*y) = (wxCoord) PANGO_PIXELS(rect.height);
     if (descent)
     {
-        // Do something about metrics here
-        (*descent) = 0;
+        PangoLayoutIter *iter = pango_layout_get_iter(layout);
+        int baseline = pango_layout_iter_get_baseline(iter);
+        pango_layout_iter_free(iter);
+        *descent = *y - PANGO_PIXELS(baseline);
     }
     if (externalLeading) (*externalLeading) = 0;  // ??
 
@@ -3627,6 +3710,62 @@ void wxWindowGTK::DoAddChild(wxWindowGTK *child)
     (*m_insertCallback)(this, child);
 }
 
+#ifdef __WXGTK20__
+
+void wxWindowGTK::AddChild(wxWindowBase *child)
+{
+    wxWindowBase::AddChild(child);
+    m_dirtyTabOrder = true;
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+}
+
+void wxWindowGTK::RemoveChild(wxWindowBase *child)
+{
+    wxWindowBase::RemoveChild(child);
+    m_dirtyTabOrder = true;
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+}
+    
+void wxWindowGTK::DoMoveInTabOrder(wxWindow *win, MoveKind move)
+{
+    wxWindowBase::DoMoveInTabOrder(win, move);
+    m_dirtyTabOrder = true;
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+}
+
+void wxWindowGTK::RealizeTabOrder()
+{
+    if (m_wxwindow)
+    {
+        if (m_children.size() > 0)
+        {
+            GList *chain = NULL;
+            
+            for (wxWindowList::const_iterator i = m_children.begin();
+                    i != m_children.end(); ++i)
+            {
+                chain = g_list_prepend(chain, (*i)->m_widget);
+            }
+            
+            chain = g_list_reverse(chain);
+            
+            gtk_container_set_focus_chain(GTK_CONTAINER(m_wxwindow), chain);
+            g_list_free(chain);
+        }
+        else
+        {
+            gtk_container_unset_focus_chain(GTK_CONTAINER(m_wxwindow));
+        }
+    }
+    
+    m_dirtyTabOrder = false;
+}
+
+#endif // __WXGTK20__
+
 void wxWindowGTK::Raise()
 {
     wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );