File indexing completed on 2024-04-28 05:45:06

 /*
  * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
  *
  * Based on the Itemviews NG project from Trolltech Labs
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef KITEMLISTCONTAINER_H
 #define KITEMLISTCONTAINER_H
 
 #include "dolphin_export.h"
 
 #include <QAbstractScrollArea>
 
 class KItemListController;
 class KItemListSmoothScroller;
 class KItemListView;
 class KItemModelBase;
 class QScroller;
 
 /**
  * @brief Provides a QWidget based scrolling view for a KItemListController.
  *
  * The model and view are maintained by the KItemListController.
  *
  * @see KItemListController
  */
 class DOLPHIN_EXPORT KItemListContainer : public QAbstractScrollArea
 {
     Q_OBJECT
 
 public:
     /**
      * @param controller Controller that maintains the model and the view.
      *                   The KItemListContainer takes ownership of the controller
      *                   (the parent will be set to the KItemListContainer).
      * @param parent     Optional parent widget.
      */
     explicit KItemListContainer(KItemListController *controller, QWidget *parent = nullptr);
     ~KItemListContainer() override;
     KItemListController *controller() const;
 
     void setEnabledFrame(bool enable);
     bool enabledFrame() const;
 
 protected:
     void keyPressEvent(QKeyEvent *event) override;
     void contextMenuEvent(QContextMenuEvent *event) override;
     void showEvent(QShowEvent *event) override;
     void resizeEvent(QResizeEvent *event) override;
     void scrollContentsBy(int dx, int dy) override;
     void wheelEvent(QWheelEvent *event) override;
     void focusInEvent(QFocusEvent *event) override;
     void focusOutEvent(QFocusEvent *event) override;
 
 private Q_SLOTS:
     void slotScrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous);
     void slotModelChanged(KItemModelBase *current, KItemModelBase *previous);
     void slotViewChanged(KItemListView *current, KItemListView *previous);
     void scrollTo(qreal offset);
     void updateScrollOffsetScrollBar();
     void updateItemOffsetScrollBar();
     void stopScroller();
 
 private:
     void updateGeometries();
     void updateSmoothScrollers(Qt::Orientation orientation);
 
     /**
      * Helper method for updateScrollOffsetScrollBar(). Updates the scrollbar-policy
      * to Qt::ScrollBarAlwaysOn for cases where turning off the scrollbar might lead
      * to an endless layout loop (see bug #293318).
      */
     void updateScrollOffsetScrollBarPolicy();
 
 private:
     KItemListController *m_controller;
 
     KItemListSmoothScroller *m_horizontalSmoothScroller;
     KItemListSmoothScroller *m_verticalSmoothScroller;
     QScroller *m_scroller;
 };
 
 #endif