ScaleWidget.h

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/***************************************************************************
          ScaleWidget.h  -  widget for drawing a scale under an image
                             -------------------
    begin                : Sep 18 2001
    copyright            : (C) 2001 by Thomas Eschenbacher
    email                : Thomas Eschenbacher <thomas.eschenbacher@gmx.de>
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef SCALE_WIDGET_H
#define SCALE_WIDGET_H

#include "config.h"

#include <QtGlobal>
#include <QString>
#include <QWidget>

class QPaintEvent;
class QPainter;
class QSize;

namespace Kwave
{
    class Q_DECL_EXPORT ScaleWidget: public QWidget
    {
    public:

        explicit ScaleWidget(QWidget *parent);

        ScaleWidget(QWidget *parent, int low, int high, const QString &unit);

        virtual ~ScaleWidget() Q_DECL_OVERRIDE;

        void setMinMax(int min, int max);

        void setUnit(const QString &text);

        void setLogMode(bool log);

        virtual QSize minimumSize() const;

        virtual QSize sizeHint() const Q_DECL_OVERRIDE;

    protected:

        virtual void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;

        void drawLinear(QPainter &p, int w, int h, bool inverse);

        void drawLog(QPainter &p, int w, int h, bool inverse);

        void paintText(QPainter &p, int x, int y,
                        bool reverse, const QString &text);

    private:

        int m_low;

        int m_high;

        bool m_logmode;

        QString m_unittext;

    };
}

#endif // SCALE_WIDGET_H

//***************************************************************************
//***************************************************************************