File indexing completed on 2025-01-19 03:53:21

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2009-03-25
  * Description : Tree View for album models
  *
  * SPDX-FileCopyrightText: 2009-2011 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
  * SPDX-FileCopyrightText: 2010-2011 by Andi Clemens <andi dot clemens at gmail dot com>
  * SPDX-FileCopyrightText: 2014      by Mohamed_Anwer <m_dot_anwer at gmx dot com>
  * SPDX-FileCopyrightText: 2014      by Michael G. Hansen <mike at mghansen dot de>
  * SPDX-FileCopyrightText: 2009-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #ifndef DIGIKAM_ABSTRACT_ALBUM_TREE_VIEW_P_H
 #define DIGIKAM_ABSTRACT_ALBUM_TREE_VIEW_P_H
 
 #include "abstractalbumtreeview.h"
 
 // Qt includes
 
 #include <QStyledItemDelegate>
 #include <QMouseEvent>
 #include <QScrollBar>
 #include <QQueue>
 #include <QTimer>
 #include <QDrag>
 #include <QMenu>
 #include <QIcon>
 
 // KDE includes
 
 #include <klocalizedstring.h>
 #include <kconfiggroup.h>
 
 // Local includes
 
 #include "digikam_debug.h"
 #include "digikam_globals.h"
 #include "albumdragdrop.h"
 #include "albummanager.h"
 #include "albummodeldragdrophandler.h"
 #include "applicationsettings.h"
 #include "albumthumbnailloader.h"
 #include "contextmenuhelper.h"
 #include "fileactionmngr.h"
 #include "tagdragdrop.h"
 #include "tagmodificationhelper.h"
 #include "coredb.h"
 
 namespace Digikam
 {
 
 template <class A>
 static QList<A*> selectedAlbums(QItemSelectionModel* const selModel,
                                 AlbumFilterModel* const filterModel)
 {
     const QList<QModelIndex> indexes = selModel->selectedIndexes();
     QList<A*> albums;
 
     Q_FOREACH (const QModelIndex& index, indexes)
     {
         albums << static_cast<A*>(filterModel->albumForIndex(index));
     }
 
     return albums;
 }
 
 // -------------------------------------------------------------------------------
 
 struct State
 {
     State()
         : selected    (false),
           expanded    (false),
           currentIndex(false)
     {
     }
 
     bool selected;
     bool expanded;
     bool currentIndex;
 };
 
 // -------------------------------------------------------------------------------
 
 class Q_DECL_HIDDEN AlbumTreeViewDelegate : public QStyledItemDelegate
 {
     Q_OBJECT
 
 public:
 
     explicit AlbumTreeViewDelegate(AbstractAlbumTreeView* const treeView = nullptr)
         : QStyledItemDelegate(treeView),
           m_treeView         (treeView),
           m_height           (0)
     {
         updateHeight();
     }
 
     QSize sizeHint(const QStyleOptionViewItem& option,
                    const QModelIndex& index) const override
     {
         QSize size = QStyledItemDelegate::sizeHint(option, index);
         size.setHeight(qMax(size.height(), m_height));
 
         return size;
     }
 
     void updateHeight()
     {
         int h = qMax(AlbumThumbnailLoader::instance()->thumbnailSize() + 2,
                      m_treeView->fontMetrics().height());
 
         if ((h % 2) > 0)
         {
             ++h;
         }
 
         setHeight(h);
     }
 
     void setHeight(int height)
     {
         if (m_height == height)
         {
             return;
         }
 
         m_height = height;
 
         Q_EMIT sizeHintChanged(QModelIndex());
     }
 
 protected:
 
     AbstractAlbumTreeView* m_treeView;
     int                    m_height;
 };
 
 // -------------------------------------------------------------------------------
 
 class Q_DECL_HIDDEN AbstractAlbumTreeView::Private
 {
 public:
 
     explicit Private()
       : delegate                (nullptr),
         expandOnSingleClick     (false),
         expandNewCurrent        (false),
         selectAlbumOnClick      (false),
         selectOnContextMenu     (true),
         enableContextMenu       (false),
         setInAlbumManager       (false),
         resizeColumnsTimer      (nullptr),
         configSelectionEntry    (QLatin1String("Selection")),
         configExpansionEntry    (QLatin1String("Expansion")),
         configCurrentIndexEntry (QLatin1String("CurrentIndex")),
         configSortColumnEntry   (QLatin1String("SortColumn")),
         configSortOrderEntry    (QLatin1String("SortOrder"))
     {
     }
 
     AlbumTreeViewDelegate*     delegate;
 
     bool                       expandOnSingleClick;
     bool                       expandNewCurrent;
     bool                       selectAlbumOnClick;
     bool                       selectOnContextMenu;
     bool                       enableContextMenu;
     bool                       setInAlbumManager;
 
     QMap<int, Digikam::State>  statesByAlbumId;
     QMap<int, Digikam::State>  searchBackup;
 
     QTimer*                    resizeColumnsTimer;
 
     AlbumPointer<Album>        lastSelectedAlbum;
 
     QList<ContextMenuElement*> contextMenuElements;
 
     QPixmap                    contextMenuIcon;
     QString                    contextMenuTitle;
 
     const QString              configSelectionEntry;
     const QString              configExpansionEntry;
     const QString              configCurrentIndexEntry;
     const QString              configSortColumnEntry;
     const QString              configSortOrderEntry;
 };
 
 } // namespace Digikam
 
 #endif // DIGIKAM_ABSTRACT_ALBUM_TREE_VIEW_P_H