diff ext/guichan-0.8.1/include/guichan/widgets/listbox.hpp @ 0:4a0efb7baf70

* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ext/guichan-0.8.1/include/guichan/widgets/listbox.hpp	Sun Jun 29 18:44:17 2008 +0000
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+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * 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_LISTBOX_HPP
+#define GCN_LISTBOX_HPP
+
+#include <list>
+
+#include "guichan/keylistener.hpp"
+#include "guichan/listmodel.hpp"
+#include "guichan/mouselistener.hpp"
+#include "guichan/platform.hpp"
+#include "guichan/widget.hpp"
+
+namespace gcn
+{
+    class SelectionListener;
+
+    /**
+     * An implementation of a list box where an item can be selected.
+     *
+     * To be able display a list the list box uses a user provided list model. 
+     * A list model can be any class that implements the ListModel interface.
+     *     
+     * If an item is selected in the list box a select event will be sent to all selection 
+     * listeners of the list box. If an item is selected by using a mouse click or by using 
+     * the enter or space key an action event will be sent to all action listeners of the 
+     * list box.
+     */
+    class GCN_CORE_DECLSPEC ListBox :
+        public Widget,
+        public MouseListener,
+        public KeyListener
+    {
+    public:
+        /**
+         * Constructor.
+         */
+        ListBox();
+
+        /**
+         * Constructor.
+         *
+         * @param listModel the list model to use.
+         */
+        ListBox(ListModel *listModel);
+
+        /**
+         * Destructor.
+         */
+        virtual ~ListBox() { }
+
+        /**
+         * Gets the selected item as an index in the list model.
+         *
+         * @return the selected item as an index in the list model.
+         * @see setSelected
+         */
+        int getSelected() const;
+
+         /**
+         * Sets the selected item. The selected item is represented by
+         * an index from the list model.
+         *
+         * @param selected the selected item as an index from the list model.
+         * @see getSelected
+         */
+        void setSelected(int selected);
+
+        /**
+         * Sets the list model to use.
+         *
+         * @param listModel the list model to use.
+         * @see getListModel
+         */
+        void setListModel(ListModel *listModel);
+
+        /**
+         * Gets the list model used.
+         *
+         * @return the list model used.
+         * @see setListModel
+         */
+        ListModel *getListModel();
+
+        /**
+         * Adjusts the size of the list box to fit it's list model.
+         */
+        void adjustSize();
+
+        /**
+         * Checks whether the list box wraps when selecting items with a keyboard.
+         *
+         * Wrapping means that the selection of items will be wrapped. That is, if 
+         * the first item is selected and up is pressed, the last item will get 
+         * selected. If the last item is selected and down is pressed, the first item 
+         * will get selected.
+         *
+         * @return true if wrapping is enabled, fasle otherwise.
+         * @see setWrappingEnabled
+         */
+        bool isWrappingEnabled() const;
+
+        /**
+         * Sets the list box to wrap or not when selecting items with a keyboard.
+         *
+         * Wrapping means that the selection of items will be wrapped. That is, if 
+         * the first item is selected and up is pressed, the last item will get 
+         * selected. If the last item is selected and down is pressed, the first item 
+         * will get selected.
+         * 
+         * @see isWrappingEnabled
+         */
+        void setWrappingEnabled(bool wrappingEnabled);
+
+        /**
+         * Adds a selection listener to the list box. When the selection
+         * changes an event will be sent to all selection listeners of the
+         * list box.
+         *
+         * @param selectionListener The selection listener to add.
+         * @since 0.8.0
+         */
+        void addSelectionListener(SelectionListener* selectionListener);
+
+        /**
+         * Removes a selection listener from the list box.
+         *
+         * @param selectionListener The selection listener to remove.
+         * @since 0.8.0
+         */
+        void removeSelectionListener(SelectionListener* selectionListener);
+
+		/**
+		 * Gets the height of a row. Should be overridden if another row
+		 * height than the font height is preferred.
+		 *
+		 * @return The height of a row.
+		 * @since 0.8.0
+		 */
+		virtual unsigned int getRowHeight() const;
+
+
+        // Inherited from Widget
+
+        virtual void draw(Graphics* graphics);
+
+        virtual void logic();
+
+
+        // Inherited from KeyListener
+
+        virtual void keyPressed(KeyEvent& keyEvent);
+
+
+        // Inherited from MouseListener
+
+        virtual void mousePressed(MouseEvent& mouseEvent);
+
+        virtual void mouseWheelMovedUp(MouseEvent& mouseEvent);
+
+        virtual void mouseWheelMovedDown(MouseEvent& mouseEvent);
+        
+        virtual void mouseDragged(MouseEvent& mouseEvent);
+
+        
+    protected:
+        /**
+         * Distributes a value changed event to all selection listeners
+         * of the list box.
+         * 
+         * @since 0.8.0
+         */
+        void distributeValueChangedEvent();
+
+        /**
+         * The selected item as an index in the list model.
+         */
+        int mSelected;
+
+        /**
+         * The list model to use.
+         */
+        ListModel *mListModel;
+
+        /**
+         * True if wrapping is enabled, false otherwise.
+         */
+        bool mWrappingEnabled;
+
+        /**
+         * Typdef.
+         */ 
+        typedef std::list<SelectionListener*> SelectionListenerList;
+        
+        /**
+         * The selection listeners of the list box.
+         */
+        SelectionListenerList mSelectionListeners;
+
+        /**
+         * Typedef.
+         */
+        typedef SelectionListenerList::iterator SelectionListenerIterator;
+    };
+}
+
+#endif // end GCN_LISTBOX_HPP