/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2004 Alexander Dymo <cloudtemple@mskat.net>
   Copyright (C) 2006-2008 Jarosław Staniek <staniek@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#ifndef KPROPERTY_BOOLEDIT_H
#define KPROPERTY_BOOLEDIT_H

#include "combobox.h"
#include "koproperty/Factory.h"

#include <QEvent>
#include <QPixmap>
#include <QResizeEvent>
#include <QToolButton>

namespace KoProperty
{

//! A bool editor supporting two states: true and false. 
/*! For null values, false is displayed.
*/
class KOPROPERTY_EXPORT BoolEdit : public QToolButton
{
    Q_OBJECT
    Q_PROPERTY(bool value READ value WRITE setValue USER true)

public:
    explicit BoolEdit(const Property *prop, QWidget *parent = 0);

    ~BoolEdit();

    bool value() const;

    static void draw(QPainter *p, const QRect &r, const QVariant &value,
                     const QString& text, bool threeState);
signals:
    void commitData(QWidget* editor);

public slots:
    void setValue(bool value);

protected slots:
    void  slotValueChanged(bool state);

protected:
    virtual void paintEvent( QPaintEvent * event );
//    virtual void setReadOnlyInternal(bool readOnly);
//    void setState(bool state);
//    virtual void resizeEvent(QResizeEvent *ev);
    virtual bool eventFilter(QObject* watched, QEvent* e);

private:
    QString m_yesText;
    QString m_noText;
};

//! A bool editor supporting three states: true, false and null. 
/*! The editor is implemented as a drop-down list.
*/
class KOPROPERTY_EXPORT ThreeStateBoolEdit : public ComboBox
{
    Q_OBJECT
//    Q_PROPERTY(QVariant value READ value WRITE setValue USER true)

public:
    explicit ThreeStateBoolEdit(const Property::ListData& listData, QWidget *parent = 0);
    ~ThreeStateBoolEdit();

    QVariant value() const;
    void setValue(const QVariant &value);

//    virtual void setProperty(Property *property);
//    virtual void drawViewer(QPainter *p, const QColorGroup &cg, const QRect &r, const QVariant &value);
//    QPixmap m_yesIcon, m_noIcon; //!< icons for m_toggle
signals:
    void commitData( QWidget * editor );
};

class KOPROPERTY_EXPORT BoolDelegate : public EditorCreatorInterface, 
                                       public ValuePainterInterface
{
public:
    BoolDelegate();

    virtual QWidget * createEditor( int type, QWidget *parent, 
        const QStyleOptionViewItem & option, const QModelIndex & index ) const;

    virtual void paint( QPainter * painter, 
        const QStyleOptionViewItem & option, const QModelIndex & index ) const;
};

}

#endif
