dzoombar.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2007-04-15
 * Description : a zoom bar used in status bar.
 *
 * Copyright (C) 2007-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * 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.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_DZOOM_BAR_H
#define DIGIKAM_DZOOM_BAR_H
 
// Qt includes
 
#include <QString>
 
// Local includes
 
#include "dlayoutbox.h"
#include "digikam_export.h"
 
class QAction;
 
namespace Digikam
{
 
class DIGIKAM_EXPORT DZoomBar : public DHBox
{
    Q_OBJECT
 
public:
 
    enum BarMode
    {
        PreviewZoomCtrl = 0,      
        ThumbsSizeCtrl,           
        NoPreviewZoomCtrl         
    };
 
public:
 
    explicit DZoomBar(QWidget* const parent = nullptr);
    ~DZoomBar() override;
 
    void setBarMode(BarMode mode);
    void setZoom(double zoom, double zmin, double zmax);
    void setThumbsSize(int size);
 
    void setZoomToFitAction(QAction* const action);
    void setZoomTo100Action(QAction* const action);
    void setZoomPlusAction(QAction* const action);
    void setZoomMinusAction(QAction* const action);
 
    void triggerZoomTrackerToolTip();
 
    static int    sizeFromZoom(double zoom, double zmin, double zmax);
    static double zoomFromSize(int size, double zmin, double zmax);
 
Q_SIGNALS:
 
    void signalZoomSliderChanged(int);
    void signalDelayedZoomSliderChanged(int);
    void signalZoomSliderReleased(int);
    void signalZoomValueEdited(double);
 
public Q_SLOTS:
 
    void slotUpdateTrackerPos();
 
private Q_SLOTS:
 
    void slotZoomSliderChanged(int);
    void slotDelayedZoomSliderChanged();
    void slotZoomSliderReleased();
    void slotZoomSelected(int);
    void slotZoomTextChanged();
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_DZOOM_BAR_H