kcolorbutton.h

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/* This file is part of the KDE libraries
    Copyright (C) 1997 Martin Jones (mjones@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 KCOLORBUTTON_H
#define KCOLORBUTTON_H

#include <kdeui_export.h>

#include <QtGui/QPushButton>

class KColorButtonPrivate;
class KDEUI_EXPORT KColorButton : public QPushButton
{
    Q_OBJECT
    Q_PROPERTY( QColor color READ color WRITE setColor NOTIFY changed USER true )
    Q_PROPERTY( QColor defaultColor READ defaultColor WRITE setDefaultColor )
    Q_PROPERTY( bool alphaChannelEnabled READ isAlphaChannelEnabled WRITE setAlphaChannelEnabled )

public:
    explicit KColorButton( QWidget *parent = 0 );

    explicit KColorButton( const QColor &c, QWidget *parent = 0 );

    KColorButton( const QColor &c, const QColor &defaultColor, QWidget *parent = 0 );

    virtual ~KColorButton();

    QColor color() const;

     void setColor( const QColor &c );

     void setAlphaChannelEnabled( bool alpha );

     bool isAlphaChannelEnabled() const;

    QColor defaultColor() const;

    void setDefaultColor( const QColor &c );

    QSize sizeHint() const;
    QSize minimumSizeHint() const;

Q_SIGNALS:
    void changed( const QColor &newColor );

protected:
    virtual void paintEvent( QPaintEvent *pe );
    virtual void dragEnterEvent( QDragEnterEvent *);
    virtual void dropEvent( QDropEvent *);
    virtual void mousePressEvent( QMouseEvent *e );
    virtual void mouseMoveEvent( QMouseEvent *e);
    virtual void keyPressEvent( QKeyEvent *e );

private:
    class KColorButtonPrivate;
    KColorButtonPrivate * const d;

    Q_PRIVATE_SLOT( d, void _k_chooseColor() )
    Q_PRIVATE_SLOT( d, void _k_colorChosen() )
};

#endif