File indexing completed on 2025-01-19 03:59:21

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2012-07-08
  * Description : Qt item view to import items - the delegate
  *
  * SPDX-FileCopyrightText: 2012      by Islam Wazery <wazery at ubuntu dot com>
  * SPDX-FileCopyrightText: 2012-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #ifndef DIGIKAM_IMPORT_DELEGATE_H
 #define DIGIKAM_IMPORT_DELEGATE_H
 
 #include <QtGlobal>
 #include <QListView>
 
 // Local includes
 
 #include "itemviewimportdelegate.h"
 #include "importthumbnailmodel.h"
 #include "importcategorydrawer.h"
 
 namespace Digikam
 {
 
 class ImportCategorizedView;
 class ImportThumbnailDelegatePrivate;
 class ImportNormalDelegatePrivate;
 
 class ImportDelegate : public ItemViewImportDelegate
 {
     Q_OBJECT
 
 public:
 
     explicit ImportDelegate(QWidget* const parent);
     ~ImportDelegate() override;
 
     void setView(ImportCategorizedView* view);
 
     ImportCategoryDrawer* categoryDrawer()           const;
 
 /*
     QRect commentsRect()                             const;
 */
     QRect tagsRect()                                 const;
     QRect actualPixmapRect(const QModelIndex& index) const;
     QRect groupIndicatorRect()                       const;
     QRect downloadIndicatorRect()                    const;
     QRect lockIndicatorRect()                        const;
     QRect coordinatesIndicatorRect()                 const;
 
     int calculatethumbSizeToFit(int ws);
 
     void setSpacing(int spacing)                                                                       override;
     void setDefaultViewOptions(const QStyleOptionViewItem& option)                                     override;
     bool acceptsToolTip(const QPoint& pos, const QRect& visualRect,
                                 const QModelIndex& index, QRect* tooltipRect = nullptr)          const override;
     bool acceptsActivation(const QPoint& pos, const QRect& visualRect,
                                    const QModelIndex& index, QRect* activationRect = nullptr)    const override;
 
     QRect pixmapRect()                                                                           const override;
     QRect imageInformationRect()                                                                 const override;
 
     void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index)  const override;
     QPixmap pixmapForDrag(const QStyleOptionViewItem& option, const QList<QModelIndex>& indexes) const override;
 
     /**
      * Retrieve the thumbnail pixmap in given size for the ImportItemModel::ThumbnailRole for
      * the given index from the given index, which must adhere to ImportThumbnailModel semantics.
      */
     static QPixmap retrieveThumbnailPixmap(const QModelIndex& index, int thumbnailSize);
 
 public:
 
     // Declared as public because of use in ImportNormalDelegate class.
     class ImportDelegatePrivate;
 
 protected:
 
     bool onActualPixmapRect(const QPoint& pos, const QRect& visualRect,
                             const QModelIndex& index, QRect* actualRect) const;
     void updateActualPixmapRect(const QModelIndex& index, const QRect& rect);
 
     void setModel(QAbstractItemModel* model);
 
     ImportDelegate(ImportDelegate::ImportDelegatePrivate& dd, QWidget* const parent);
 
     /**
      * Reimplement this to set contentWidth. This is the maximum width of all
      * content rectangles, typically excluding margins on both sides.
      */
     virtual void updateContentWidth();
 
     /**
      * In a subclass, you need to implement this method to set up the rects
      * for drawing. The paint() method operates depending on these rects.
      */
     virtual void updateRects() = 0;
 
     void clearCaches()               override;
 
     /**
      * Reimplement to clear caches based on model indexes (hash on row number etc.)
      * Change signals are listened to this is called whenever such properties become invalid.
      */
     virtual void clearModelDataCaches();
 
     virtual QPixmap thumbnailPixmap(const QModelIndex& index) const;
 
     void invalidatePaintingCache()   override;
     void updateSizeRectsAndPixmaps() override;
 
 protected Q_SLOTS:
 
     void modelChanged();
     void modelContentsChanged();
 
 private:
 
     Q_DECLARE_PRIVATE(ImportDelegate)
 };
 
 // ------ ImportThumbnailDelegate ----------------------------------------
 
 class ImportThumbnailDelegate : public ImportDelegate
 {
     Q_OBJECT
 
 public:
 
     explicit ImportThumbnailDelegate(ImportCategorizedView* const parent);
     ~ImportThumbnailDelegate() override;
 
     void setFlow(QListView::Flow flow);
 
     /**
      * Returns the minimum or maximum viewport size in the limiting dimension,
      * width or height, depending on current flow.
      */
     int maximumSize() const;
     int minimumSize() const;
 
     void setDefaultViewOptions(const QStyleOptionViewItem& option) override;
     bool acceptsActivation(const QPoint& pos, const QRect& visualRect, const QModelIndex& index,
                            QRect* activationRect) const            override;
 
 protected:
 
     void updateContentWidth()                                      override;
     void updateRects()                                             override;
     int thumbnailPixmapSize(bool withHighlight, int size);
 
 private:
 
     Q_DECLARE_PRIVATE(ImportThumbnailDelegate)
 };
 
 // ------ ImportNormalDelegate ----------------------------------------
 
 class ImportNormalDelegate : public ImportDelegate
 {
     Q_OBJECT
 
 public:
 
     explicit ImportNormalDelegate(ImportCategorizedView* const parent);
     ~ImportNormalDelegate() override;
 
 protected:
 
     ImportNormalDelegate(ImportNormalDelegatePrivate& dd, ImportCategorizedView* const parent);
 
     void updateRects()      override;
 
 private:
 
     Q_DECLARE_PRIVATE(ImportNormalDelegate)
 };
 
 } // namespace Digikam
 
 #endif // DIGIKAM_IMPORT_DELEGATE_H