dcursortracker.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2007-23-03
 * Description : A tool tip widget which follows cursor movements.
 *               Tool tip content is displayed without delay.
 *
 * Copyright (C) 2007-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 * Copyright (C) 2009-2010 by Andi Clemens <andi dot clemens 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_DCURSOR_TRACKER_H
#define DIGIKAM_DCURSOR_TRACKER_H
 
// Qt includes
 
#include <QEvent>
#include <QString>
#include <QLabel>
 
// Local includes
 
#include "digikam_export.h"
 
namespace Digikam
{
 
class DIGIKAM_EXPORT DCursorTracker : public QLabel
{
    Q_OBJECT
 
public:
 
    explicit DCursorTracker(const QString& txt, QWidget* const parent, Qt::Alignment align = Qt::AlignCenter);
    ~DCursorTracker()                   override;
 
    void setText(const QString& txt);
    void setEnable(bool b);
    void setKeepOpen(bool b);
    void setTrackerAlignment(Qt::Alignment alignment);
 
    void triggerAutoShow(int timeout = 2000);
    void refresh();
 
protected:
 
    bool eventFilter(QObject*, QEvent*) override;
    void paintEvent(QPaintEvent*)       override;
 
private Q_SLOTS:
 
    void slotAutoHide();
 
private:
 
    void moveToParent(QWidget* const parent);
    bool canBeDisplayed();
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_DCURSOR_TRACKER_H