* Apply Guichan's changes from b50089aa71c0625f5273c468ac169b71f8bba6…

…64 (August 28th 2008)

Widget::getTop has been added.

TODO

@@ -1,4 +1,4 @@
-* Continue rebasing from b50089aa71c0625f5273c468ac169b71f8bba664
+* Continue rebasing from 8090b4fbd0cb73c092307a5b551929275b8aef5a
 * Add a focus listener interface.
 * Make focus apply synchronously.
 * Graphics and input objects for DirectX.

include/guisan/widget.hpp

@@ -188,6 +188,16 @@ namespace gcn
          */
         virtual Widget* getParent() const;
 
+        /**
+         * Gets the top widget, or top parent, of this widget.
+         *
+         * @return The top widget, or top parent, of this widget.
+         *         NULL if no top widget exists
+         *         (that is this widget doesn't have a parent).
+         * @since 1.1.0
+         */
+        virtual Widget* getTop() const;
+
         /**
          * Sets the width of the widget.
          *
@@ -883,37 +893,41 @@ namespace gcn
          * Moves a widget to the top of this widget. The moved widget will be
          * drawn above all other widgets in this widget.
          *
+         * This method is safe to call at any times.
+         *
          * @param widget The widget to move to the top.
          * @see moveToBottom
          * @since 0.1.0
          */
-        virtual void moveToTop(Widget* widget) { };
+        virtual void moveToTop(Widget* widget) {}
 
         /**
          * Moves a widget in this widget to the bottom of this widget.
          * The moved widget will be drawn below all other widgets in this widget.
          *
+         * This method is safe to call at any times.
+         *
          * @param widget The widget to move to the bottom.
          * @see moveToTop
          * @since 0.1.0
          */
-        virtual void moveToBottom(Widget* widget) { };
+        virtual void moveToBottom(Widget* widget) {}
 
         /**
          * Focuses the next widget in the widget.
          * 
          * @see moveToBottom
          * @since 0.1.0
          */
-        virtual void focusNext() { };
+        virtual void focusNext() {}
 
         /**
          * Focuses the previous widget in the widget.
          *
          * @see moveToBottom
          * @since 0.1.0
          */
-        virtual void focusPrevious() { };
+        virtual void focusPrevious() {}
 
         /**
          * Tries to show a specific part of a widget by moving it. Used if the
@@ -923,7 +937,7 @@ namespace gcn
          * @param area The area to show.
          * @since 0.1.0
          */
-        virtual void showWidgetPart(Widget* widget, Rectangle area) { };
+        virtual void showWidgetPart(Widget* widget, Rectangle area) {}
 
         /**
          * Sets an id of a widget. An id can be useful if a widget needs to be

src/widget.cpp

@@ -743,4 +743,20 @@ namespace gcn
             mParent->showWidgetPart(this, rectangle);
         }
     }
+
+    Widget* Widget::getTop() const
+    {
+        if (getParent() == NULL) return NULL;
+
+        Widget* widget = getParent();
+        Widget* parent = getParent()->getParent();
+
+        while (parent != NULL)
+        {
+            widget = parent;
+            parent = parent->getParent();
+        }
+
+        return widget;
+    }
 }