/usr/include/guichan/widgets/listbox.hpp is in libguichan-dev 0.8.2-13.
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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
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*/
#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.
*
* If you delete your selection listener, be sure to also remove it
* using removeSelectionListener().
*
* @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
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