/* ============================================================
 * Author: Tom Albers <tomalbers@kde.nl>
 * Date  : 2005-01-01
 * Description : 
 * 
 * Copyright 2005 by Tom Albers
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * ============================================================ */

/** @file squeezedcombobox.h */

#ifndef SQUEEZEDCOMBOBOX_H
#define SQUEEZEDCOMBOBOX_H

class TQTimer;

// TQt includes.

#include <tqcombobox.h>
#include <tqtooltip.h>

class SqueezedComboBox;

/** @class SqueezedComboBoxTip
 * This class shows a tooltip for a SqueezedComboBox
 * the tooltip will contain the full text and helps
 * the user find the correct entry. It is automatically
 * activated when starting a SqueezedComboBox. This is
 * inherited from TQToolTip
 * 
 * @author Tom Albers
 */
class SqueezedComboBoxTip : public TQToolTip
{
public:
    /**
     * Constructor. An example call (as done in
     * SqueezedComboBox::SqueezedComboBox):
     * @code
     * t = new SqueezedComboBoxTip( this->listBox()->viewport(), this );
     * @endcode
     * 
     * @param parent parent widget (viewport)
     * @param name parent widget
     */
    SqueezedComboBoxTip( TQWidget *parent, SqueezedComboBox *name );

protected:
    /**
     * Reimplemented version from TQToolTip which shows the
     * tooltip when needed.
     * @param  pos the point where the mouse currently is
     */
    void maybeTip( const TQPoint& pos );

private:
    SqueezedComboBox*        m_originalWidget;
};

/** @class SqueezedComboBox
 *
 * This widget is a TQComboBox, but then a little bit
 * different. It only shows the right part of the items
 * depending on de size of the widget. When it is not
 * possible to show the complete item, it will be shortened
 * and "..." will be prepended.
 *
 * @image html squeezedcombobox.png "This is how it looks"
 * @author Tom Albers
 */
class SqueezedComboBox : public TQComboBox
{
    Q_OBJECT
  

public:
    /**
     * Constructor
     * @param parent parent widget
     * @param name name to give to the widget
     */
    SqueezedComboBox(TQWidget *parent = 0, const char *name = 0 );

    /**
     * destructor
     */
    virtual ~SqueezedComboBox();

    bool contains(const TQString & text) const;

    /**
     * This inserts a item to the list. See TQComboBox::insertItem()
     * for detaills. Please do not use TQComboBox::insertItem() to this
     * widget, as that will fail.
     * @param newItem the original (long version) of the item which needs
     *                to be added to the combobox
     * @param index the position in the widget.
     */
    void insertSqueezedItem(const TQString& newItem, int index);

    /**
     * This method returns the full text (not squeezed) of the currently
     * highlighted item.
     * @return full text of the highlighted item
     */
    TQString itemHighlighted( );

    /**
     * Sets the sizeHint() of this widget.
     */
    virtual TQSize sizeHint() const;

private slots:
    void slotTimeOut();
    void slotUpdateToolTip( int index );

private:
    void resizeEvent ( TQResizeEvent * );
    TQString squeezeText( const TQString& original);

    TQMap<int,TQString>   m_originalItems;
    TQTimer*             m_timer;
    SqueezedComboBoxTip*      m_tooltip;
};

#endif // SQUEEZEDCOMBOBOX_H