File indexing completed on 2024-04-28 04:21:23

 // SPDX-FileCopyrightText: 2003-2020 The KPhotoAlbum Development Team
 // SPDX-FileCopyrightText: 2021-2022 Johannes Zarl-Zierl <johannes@zarl-zierl.at>
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #ifndef THUMBNAILVIEW_THUMBNAILWIDGET_H
 #define THUMBNAILVIEW_THUMBNAILWIDGET_H
 
 #include "GridResizeInteraction.h"
 #include "MouseTrackingInteraction.h"
 #include "SelectionInteraction.h"
 #include "ThumbnailComponent.h"
 #include "VideoThumbnailCycler.h"
 #include "enums.h"
 
 #include <QListView>
 #include <QScopedPointer>
 
 class QTimer;
 namespace Utilities
 {
 class FastDateTime;
 }
 
 namespace DB
 {
 class ImageDate;
 class Id;
 class FileNameList;
 }
 
 namespace ThumbnailView
 {
 class ThumbnailPainter;
 class CellGeometry;
 class ThumbnailModel;
 class ThumbnailFactory;
 class KeyboardEventHandler;
 class ThumbnailDND;
 
 class ThumbnailWidget : public QListView, private ThumbnailComponent
 {
     Q_OBJECT
 
 public:
     explicit ThumbnailWidget(ThumbnailFactory *factory);
 
     void reload(SelectionUpdateMethod method);
     DB::FileName mediaIdUnderCursor() const;
     QModelIndex indexUnderCursor() const;
 
     bool isMouseOverStackIndicator(const QPoint &point);
     bool isGridResizing() const;
     void setCurrentItem(const DB::FileName &fileName);
     DB::FileName currentItem() const;
     void changeSingleSelection(const DB::FileName &fileName);
 
     // Misc
     int cellWidth() const;
     void showEvent(QShowEvent *) override;
     DB::FileNameList selection(ThumbnailView::SelectionMode mode) const;
     bool isSelected(const DB::FileName &id) const;
     void select(const DB::FileNameList &);
     bool isItemUnderCursorSelected() const;
 
 public Q_SLOTS:
     void gotoDate(const DB::ImageDate &date, bool includeRanges);
     /**
      * @brief setExternallyResizing
      * Used by the GridResizeSlider to indicate that the grid is being resized.
      * @param state true, if the grid is being resized by an external widget, false if not
      */
     void setExternallyResizing(bool state);
 
 Q_SIGNALS:
     void showImage(const DB::FileName &id);
     void showSelection();
     void showSearch();
     void fileIdUnderCursorChanged(const DB::FileName &id);
     void currentDateChanged(const Utilities::FastDateTime &);
     void selectionCountChanged(int numberOfItemsSelected);
 
 protected:
     // event handlers
     void keyPressEvent(QKeyEvent *) override;
     void keyReleaseEvent(QKeyEvent *) override;
     void mousePressEvent(QMouseEvent *) override;
     void mouseMoveEvent(QMouseEvent *) override;
     void mouseReleaseEvent(QMouseEvent *) override;
     void mouseDoubleClickEvent(QMouseEvent *) override;
     void wheelEvent(QWheelEvent *) override;
 
     // Drag and drop
     void dragEnterEvent(QDragEnterEvent *event) override;
     void dragMoveEvent(QDragMoveEvent *) override;
     void dragLeaveEvent(QDragLeaveEvent *) override;
     void dropEvent(QDropEvent *) override;
 
 private Q_SLOTS:
     void emitDateChange();
     void scheduleDateChangeSignal();
     void emitSelectionChangedSignal();
 
 private:
     friend class GridResizeInteraction;
     inline ThumbnailModel *model() { return ThumbnailComponent::model(); }
     inline const ThumbnailModel *model() const { return ThumbnailComponent::model(); }
     void updatePalette();
     void setupDateChangeTimer();
 
     /**
      * When the user selects a date on the date bar the thumbnail view will
      * position itself accordingly. As a consequence, the thumbnail view
      * is telling the date bar which date it moved to. This is all fine
      * except for the fact that the date selected in the date bar, may be
      * for an image which is in the middle of a line, while the date
      * emitted from the thumbnail view is for the top most image in
      * the view (that is the first image on the line), which results in a
      * different cell being selected in the date bar, than what the user
      * selected.
      * Therefore we need this variable to disable the emission of the date
      * change while setting the date.
      */
     bool m_isSettingDate;
 
     GridResizeInteraction m_gridResizeInteraction;
     bool m_wheelResizing;
     bool m_externallyResizing;
     SelectionInteraction m_selectionInteraction;
     MouseTrackingInteraction m_mouseTrackingHandler;
     MouseInteraction *m_mouseHandler;
     ThumbnailDND *m_dndHandler;
     bool m_pressOnStackIndicator;
 
     QTimer *m_dateChangedTimer;
 
     friend class SelectionInteraction;
     friend class KeyboardEventHandler;
     friend class ThumbnailDND;
     friend class ThumbnailModel;
     KeyboardEventHandler *m_keyboardHandler;
     QScopedPointer<VideoThumbnailCycler> m_videoThumbnailCycler;
 };
 }
 
 #endif /* THUMBNAILVIEW_THUMBNAILWIDGET_H */
 
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