--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ext/guichan-0.8.1/include/guichan/focushandler.hpp	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,398 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name of Guichan nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef GCN_FOCUSHANDLER_HPP
+#define GCN_FOCUSHANDLER_HPP
+
+#include <vector>
+
+#include "guichan/event.hpp"
+#include "guichan/platform.hpp"
+
+namespace gcn
+{
+    class Widget;
+
+    /**
+     * Handles focus for widgets in a Gui. Each Gui has at least one
+     * focus handler. 
+     
+     * You will probably not use the focus handler directly as Widget 
+     * has functions that automatically uses the active focus handler.
+     *
+     * @see Widget::isFocus, Widget::isModalFocused, 
+     *      Widget::isModalMouseInputFocused, Widget::requestFocus,
+     *      Widget::requestModalFocus, Widget::requestModalMouseInputFocus,
+     *      Widget::releaseModalFocus, Widget::relaseModalMouseInputFocus, 
+     *      Widget::setFocusable, Widget::isFocusable, FocusListener
+     *
+     * @since 0.1.0
+     */
+    class GCN_CORE_DECLSPEC FocusHandler
+    {
+    public:
+
+        /**
+         * Constructor.
+         */
+        FocusHandler();
+
+        /**
+         * Destructor.
+         */
+        virtual ~FocusHandler() { };
+
+        /**
+         * Requests focus for a widget. Focus will only be granted to a widget
+         * if it's focusable and if no other widget has modal focus.
+         * If a widget receives focus a focus event will be sent to the 
+         * focus listeners of the widget.
+         *
+         * @param widget The widget to request focus for.
+         * @see isFocused, Widget::requestFocus
+         */
+        virtual void requestFocus(Widget* widget);
+
+        /**
+         * Requests modal focus for a widget. Focus will only be granted
+         * to a widget if it's focusable and if no other widget has modal 
+         * focus.
+         *
+         * @param widget The widget to request modal focus for.
+         * @throws Exception when another widget already has modal focus.
+         * @see releaseModalFocus, Widget::requestModalFocus
+         */
+        virtual void requestModalFocus(Widget* widget);
+
+        /**
+         * Requests modal mouse input focus for a widget. Focus will only 
+         * be granted to a widget if it's focusable and if no other widget 
+         * has modal mouse input focus.
+         *
+         * Modal mouse input focus means no other widget then the widget with 
+         * modal mouse input focus will receive mouse input. The widget with 
+         * modal mouse input focus will also receive mouse input no matter what 
+         * the mouse input is or where the mouse input occurs.
+         *
+         * @param widget The widget to focus for modal mouse input focus.
+         * @throws Exception when another widget already has modal mouse input 
+         *         focus.
+         * @see releaseModalMouseInputFocus, Widget::requestModalMouseInputFocus
+         */
+        virtual void requestModalMouseInputFocus(Widget* widget);
+
+        /**
+         * Releases modal focus if the widget has modal focus.
+         * If the widget doesn't have modal focus no relase will occur.
+         *
+         * @param widget The widget to release modal focus for.
+         * @see reuqestModalFocus, Widget::releaseModalFocus
+         */
+        virtual void releaseModalFocus(Widget* widget);
+
+        /**
+         * Releases modal mouse input focus if the widget has modal mouse input
+         * focus. If the widget doesn't have modal mouse input focus no relase 
+         * will occur.
+         *
+         * @param widget the widget to release modal mouse input focus for.
+         * @see requestModalMouseInputFocus, Widget::releaseModalMouseInputFocus
+         */
+        virtual void releaseModalMouseInputFocus(Widget* widget);
+
+        /**
+         * Checks if a widget is focused.
+         *
+         * @param widget The widget to check.
+         * @return True if the widget is focused, false otherwise.
+         * @see Widget::isFocused
+         */
+        virtual bool isFocused(const Widget* widget) const;
+
+        /**
+         * Gets the widget with focus.
+         *
+         * @return The widget with focus. NULL if no widget has focus.
+         */
+        virtual Widget* getFocused() const;
+
+        /**
+         * Gets the widget with modal focus.
+         *
+         * @return The widget with modal focus. NULL if no widget has
+         *         modal focus.
+         */
+        virtual Widget* getModalFocused() const;
+
+        /**
+         * Gets the widget with modal mouse input focus.
+         *
+         * @return The widget with modal mouse input focus. NULL if
+         *         no widget has modal mouse input focus.
+         */
+        virtual Widget* getModalMouseInputFocused() const;
+
+        /**
+         * Focuses the next widget added to a conainer. 
+         * If no widget has focus the first widget gets focus. The order 
+         * in which the widgets are focused is determined by the order
+         * they were added to a container.
+         *
+         * @see focusPrevious
+         */
+        virtual void focusNext();
+
+        /**
+         * Focuses the previous widget added to a contaienr. 
+         * If no widget has focus the first widget gets focus. The order 
+         * in which the widgets are focused is determined by the order
+         * they were added to a container.
+         *
+         * @see focusNext
+         */
+        virtual void focusPrevious();
+
+        /**
+         * Adds a widget to by handles by the focus handler.
+         *
+         * @param widget The widget to add.
+         * @see remove
+         */
+        virtual void add(Widget* widget);
+
+        /**
+         * Removes a widget from the focus handler.
+         *
+         * @param widget The widget to remove.
+         * @see add
+         */
+        virtual void remove(Widget* widget);
+
+        /**
+         * Focuses nothing. A focus event will also be sent to the 
+         * focused widget's focus listeners if a widget has focus.
+         */
+        virtual void focusNone();
+
+        /**
+         * Focuses the next widget which allows tabbing in unless 
+         * the current focused Widget disallows tabbing out.
+         * 
+         * @see tabPrevious
+         */
+        virtual void tabNext();
+
+        /**
+         * Focuses the previous widget which allows tabbing in unless 
+         * current focused widget disallows tabbing out.
+         *
+         * @see tabNext
+         */
+        virtual void tabPrevious();
+
+        /**
+         * Gets the widget being dragged. Used by the Gui class to 
+         * keep track of the dragged widget.
+         * 
+         * @return the widget being dragged.
+         * @see setDraggedWidget
+         */
+        virtual Widget* getDraggedWidget();
+
+        /**
+         * Sets the widget being dragged. Used by the Gui class to 
+         * keep track of the dragged widget.
+         * 
+         * @param draggedWidget The widget being dragged.
+         * @see getDraggedWidget
+         */
+        virtual void setDraggedWidget(Widget* draggedWidget);
+
+        /**
+         * Gets the last widget with the mouse. Used by the Gui class 
+         * to keep track the last widget with the mouse.
+         * 
+         * @return The last widget with the mouse.
+         * @see setLastWidgetWithMouse
+         */ 
+        virtual Widget* getLastWidgetWithMouse();
+
+        /**
+         * Sets the last widget with the mouse. Used by the Gui class 
+         * to keep track the last widget with the mouse.
+         *
+         * @param lastWidgetWithMouse The last widget with the mouse.
+         * @see getLastWidgetWithMouse
+         */
+        virtual void setLastWidgetWithMouse(Widget* lastWidgetWithMouse);
+
+        /**
+         * Gets the last widget with modal focus.
+         * 
+         * @return The last widget with modal focus.
+         * @see setLastWidgetWithModalFocus
+         */
+        virtual Widget* getLastWidgetWithModalFocus();
+
+        /**
+         * Sets the last widget with modal focus.
+         * 
+         * @param lastWidgetWithModalFocus The last widget with modal focus.
+         * @see getLastWidgetWithModalFocus
+         */
+        virtual void setLastWidgetWithModalFocus(Widget* lastWidgetWithModalFocus);
+
+        /**
+         * Gets the last widget with modal mouse input focus.
+         *
+         * @return The last widget with modal mouse input focus.
+         * @see setLastWidgetWithModalMouseInputFocus
+         */
+        virtual Widget* getLastWidgetWithModalMouseInputFocus();
+
+        /**
+         * Sets the last widget with modal mouse input focus.
+         *
+         * @param lastMouseWithModalMouseInputFocus The last widget with 
+         *                                          modal mouse input focus.
+         * @see getLastWidgetWithModalMouseInputFocus
+         */
+        virtual void setLastWidgetWithModalMouseInputFocus(Widget* lastWidgetWithModalMouseInputFocus);
+
+        /**
+         * Gets the last widget pressed. Used by the Gui class to keep track
+         * of pressed widgets.
+         *
+         * @return The last widget pressed. 
+         * @see setLastWidgetPressed
+         */
+        virtual Widget* getLastWidgetPressed();
+
+        /**
+         * Sets the last widget pressed. Used by the Gui class to keep track
+         * of pressed widgets.
+         *
+         * @param lastWidgetPressed The last widget pressed.
+         * @see getLastWidgetPressed
+         */
+        virtual void setLastWidgetPressed(Widget* lastWidgetPressed);
+
+    protected:
+        /**
+         * Distributes a focus lost event.
+         *
+         * @param focusEvent the event to distribute.
+         * @since 0.7.0
+         */
+        virtual void distributeFocusLostEvent(const Event& focusEvent);
+
+        /**
+         * Distributes a focus gained event.
+         *
+         * @param focusEvent the event to distribute.
+         * @since 0.7.0
+         */
+        virtual void distributeFocusGainedEvent(const Event& focusEvent);
+
+        /**
+         * Typedef.
+         */
+        typedef std::vector<Widget*> WidgetVector;
+
+        /**
+         * Typedef.
+         */
+        typedef WidgetVector::iterator WidgetIterator;
+
+        /**
+         * Holds the widgets currently being handled by the
+         * focus handler.
+         */
+        WidgetVector mWidgets;
+
+        /**
+         * Holds the focused widget. NULL if no widget has focus.
+         */
+        Widget* mFocusedWidget;
+
+        /**
+         * Holds the modal focused widget. NULL if no widget has
+         * modal focused.
+         */
+        Widget* mModalFocusedWidget;
+
+        /**
+         * Holds the modal mouse input focused widget. NULL if no widget 
+         * is being dragged.
+         */
+        Widget* mModalMouseInputFocusedWidget;
+
+        /** 
+         * Holds the dragged widget. NULL if no widget is
+         * being dragged.
+         */
+        Widget* mDraggedWidget;
+
+        /**
+         * Holds the last widget with the mouse.
+         */
+        Widget* mLastWidgetWithMouse;
+
+        /**
+         * Holds the last widget with modal focus.
+         */
+        Widget* mLastWidgetWithModalFocus;
+
+        /**
+         * Holds the last widget with modal mouse input focus.
+         */
+        Widget* mLastWidgetWithModalMouseInputFocus;
+
+        /**
+         * Holds the last widget pressed.
+         */
+        Widget* mLastWidgetPressed;
+    };
+}
+
+#endif // end GCN_FOCUSHANDLER_HPP