+ // Called from several event handlers, if it returns true or false, the
+ // same value should be immediately returned by the handler without doing
+ // anything else. If it returns -1, the handler should continue as usual
+ int GTKCallbackCommonPrologue(struct _GdkEventAny *event) const;
+
+ // override this if some events should never be consumed by wxWidgets but
+ // but have to be left for the native control
+ //
+ // base version just calls HandleWindowEvent()
+ virtual bool GTKProcessEvent(wxEvent& event) const;
+
+ // Map GTK widget direction of the given widget to/from wxLayoutDirection
+ static wxLayoutDirection GTKGetLayout(GtkWidget *widget);
+ static void GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir);
+
+ // return true if this window must have a non-NULL parent, false if it can
+ // be created without parent (normally only top level windows but in wxGTK
+ // there is also the exception of wxMenuBar)
+ virtual bool GTKNeedsParent() const { return !IsTopLevel(); }
+
+ // This is called when capture is taken from the window. It will
+ // fire off capture lost events.
+ void GTKReleaseMouseAndNotify();
+
+ GdkWindow* GTKGetDrawingWindow() const;
+
+ bool GTKHandleFocusIn();
+ bool GTKHandleFocusOut();
+ void GTKHandleFocusOutNoDeferring();
+ static void GTKHandleDeferredFocusOut();
+
+protected:
+ // for controls composed of multiple GTK widgets, return true to eliminate
+ // spurious focus events if the focus changes between GTK+ children within
+ // the same wxWindow
+ virtual bool GTKNeedsToFilterSameWindowFocus() const { return false; }
+
+ // Override GTKWidgetNeedsMnemonic and return true if your
+ // needs to set its mnemonic widget, such as for a
+ // GtkLabel for wxStaticText, then do the actual
+ // setting of the widget inside GTKWidgetDoSetMnemonic
+ virtual bool GTKWidgetNeedsMnemonic() const;
+ virtual void GTKWidgetDoSetMnemonic(GtkWidget* w);
+
+ // Get the GdkWindows making part of this window: usually there will be
+ // only one of them in which case it should be returned directly by this
+ // function. If there is more than one GdkWindow (can be the case for
+ // composite widgets), return NULL and fill in the provided array
+ //
+ // This is not pure virtual for backwards compatibility but almost
+ // certainly must be overridden in any wxControl-derived class!
+ virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
+
+ // Check if the given window makes part of this widget
+ bool GTKIsOwnWindow(GdkWindow *window) const;
+
+public:
+ // Returns the default context which usually is anti-aliased
+ PangoContext *GTKGetPangoDefaultContext();