itemviewimportdelegate.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2012-05-07
 * Description : Item delegate for import interface items.
 *
 * Copyright (C) 2012      by Islam Wazery <wazery at ubuntu dot com>
 * Copyright (C) 2012-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_ITEM_VIEW_IMPORT_DELEGATE_H
#define DIGIKAM_ITEM_VIEW_IMPORT_DELEGATE_H
 
// Local includes
 
#include "thumbnailsize.h"
#include "ditemdelegate.h"
#include "itemdelegateoverlay.h"
 
namespace Digikam
{
 
class ImportCategoryDrawer;
class ImportCategorizedView;
class ImportFilterModel;
class ImportItemModel;
class ItemViewImportDelegatePrivate;
 
 
class ItemViewImportDelegate : public DItemDelegate, public ItemDelegateOverlayContainer
{
    Q_OBJECT
 
public:
 
    explicit ItemViewImportDelegate(QObject* const parent = nullptr);
    ~ItemViewImportDelegate() override;
 
    ThumbnailSize thumbnailSize() const;
    int           spacing() const;
    QRect         rect() const;
 
    QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    QSize gridSize() const override;
 
 
    void setThumbnailSize(const ThumbnailSize& thumbSize) override;
    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;
 
    virtual QRect pixmapRect() const;
 
    virtual QRect imageInformationRect() const;
 
    void setRatingEdited(const QModelIndex& index);
 
    virtual QRect ratingRect() const;
 
    void mouseMoved(QMouseEvent* e, const QRect& visualRect, const QModelIndex& index) override;
 
protected Q_SLOTS:
 
    void slotThemeChanged();
    void slotSetupChanged();
 
    void overlayDestroyed(QObject* o) override;
 
Q_SIGNALS:
 
    void requestNotification(const QModelIndex& index, const QString& message);
    void hideNotification();
 
protected:
 
    QRect drawThumbnail(QPainter* p, const QRect& thumbRect, const QPixmap& background, const QPixmap& thumbnail) const;
    void drawRating(QPainter* p, const QModelIndex& index, const QRect& ratingRect, int rating, bool isSelected)  const;
    void drawName(QPainter* p,const QRect& nameRect, const QString& name)                                         const;
    void drawCreationDate(QPainter* p, const QRect& dateRect, const QDateTime& date)                              const;
    void drawImageSize(QPainter* p, const QRect& dimsRect, const QSize& dims)                                     const;
    void drawImageFormat(QPainter* p, const QRect& dimsRect, const QString& mime)                                 const;
    void drawFileSize(QPainter* p, const QRect& r, qlonglong bytes)                                               const;
    void drawTags(QPainter* p, const QRect& r, const QString& tagsString, bool isSelected)                        const;
    void drawGroupIndicator(QPainter* p, const QRect& r, int numberOfGroupedImages, bool open)                    const;
    void drawPickLabelIcon(QPainter* p, const QRect& r, int pickLabel)                                            const;
    void drawColorLabelRect(QPainter* p, const QStyleOptionViewItem& option,bool isSelected, int colorId)         const;
    void drawGeolocationIndicator(QPainter* p, const QRect& r)                                                    const;
    void drawDownloadIndicator(QPainter* p, const QRect& r, int itemType)                                         const;
    void drawLockIndicator(QPainter* p, const QRect& r, int lockStatus)                                           const;
    void drawFocusRect(QPainter* p, const QStyleOptionViewItem& option, bool isSelected)                          const;
    void drawMouseOverRect(QPainter* p, const QStyleOptionViewItem& option)                                       const;
    void prepareFonts();
    void prepareMetrics(int maxWidth);
    void prepareBackground();
    void prepareRatingPixmaps(bool composeOverBackground = true);
 
    QPixmap ratingPixmap(int rating, bool selected) const;
 
    QAbstractItemDelegate* asDelegate() override;
 
    virtual void invalidatePaintingCache();
    virtual void updateSizeRectsAndPixmaps() = 0;
 
protected:
 
    ItemViewImportDelegatePrivate* const d_ptr;
    ItemViewImportDelegate(ItemViewImportDelegatePrivate& dd, QObject* const parent);
 
private:
 
    // Disable
    ItemViewImportDelegate(const ItemViewImportDelegate&)            = delete;
    ItemViewImportDelegate& operator=(const ItemViewImportDelegate&) = delete;
 
private:
 
    Q_DECLARE_PRIVATE(ItemViewImportDelegate)
};
 
} // namespace Digikam
 
#endif // DIGIKAM_ITEM_VIEW_IMPORT_DELEGATE_H