File indexing completed on 2025-04-27 03:58:29

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2009-04-30
  * Description : Qt item view mouse hover button
  *
  * SPDX-FileCopyrightText: 2009-2011 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #ifndef DIGIKAM_ITEM_VIEW_HOVER_BUTTON_H
 #define DIGIKAM_ITEM_VIEW_HOVER_BUTTON_H
 
 // Qt includes
 
 #include <QAbstractButton>
 #include <QAbstractItemView>
 
 // Local includes
 
 #include "digikam_export.h"
 
 class QTimeLine;
 
 namespace Digikam
 {
 
 class DIGIKAM_EXPORT ItemViewHoverButton : public QAbstractButton
 {
     Q_OBJECT
 
 public:
 
     explicit ItemViewHoverButton(QAbstractItemView* const parentView);
 
     void initIcon();
     void reset();
     void setIndex(const QModelIndex& index);
     QModelIndex index() const;
     void setVisible(bool visible) override;
 
     /**
      * Reimplement to match the size of your icon
      */
     QSize sizeHint() const override = 0;
 
 protected:
 
     /**
      * to call in children class constructors to init signal/slot connections.
      */
     void setup();
 
 #if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
 
     void enterEvent(QEnterEvent* event);
 
 #else
 
     void enterEvent(QEvent* event);
 
 #endif
 
     void leaveEvent(QEvent* event);
     void paintEvent(QPaintEvent* event);
 
     /**
      * Return your icon here. Will be queried again on toggle.
      */
     virtual QIcon icon() = 0;
 
     /**
      * Optionally update tooltip here. Will be called again on state change.
      */
     virtual void updateToolTip();
 
 protected Q_SLOTS:
 
     void setFadingValue(int value);
     void refreshIcon();
     void startFading();
     void stopFading();
 
 protected:
 
     QPersistentModelIndex m_index;
     bool                  m_isHovered;
     int                   m_fadingValue;
     QIcon                 m_icon;
     QTimeLine*            m_fadingTimeLine;
 };
 
 } // namespace Digikam
 
 #endif // DIGIKAM_ITEM_VIEW_HOVER_BUTTON_H