showfotoitemviewdelegate.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2013-08-01
 * Description : Qt model view for Showfoto item - the delegate
 *
 * Copyright (C) 2013 by Mohamed_Anwer <m_dot_anwer at gmx 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 SHOW_FOTO_ITEM_VIEW_DELEGATE_H
#define SHOW_FOTO_ITEM_VIEW_DELEGATE_H
 
// Local includes
 
#include "thumbnailsize.h"
#include "ditemdelegate.h"
#include "itemdelegateoverlay.h"
 
using namespace Digikam;
 
namespace ShowFoto
{
 
class ShowfotoFilterModel;
class ShowfotoItemModel;
class ShowfotoItemViewDelegatePrivate;
 
class ShowfotoItemViewDelegate : public DItemDelegate,
                                 public ItemDelegateOverlayContainer
{
    Q_OBJECT
 
public:
 
    explicit ShowfotoItemViewDelegate(QObject* const parent = nullptr);
    ~ShowfotoItemViewDelegate()                                                               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 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 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 drawGeolocationIndicator(QPainter* p, const QRect& r)                          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();
 
    QAbstractItemDelegate* asDelegate()                                                       override;
 
    virtual void invalidatePaintingCache();
    virtual void updateSizeRectsAndPixmaps()                                            = 0;
 
protected:
 
    ShowfotoItemViewDelegatePrivate* const d_ptr;
 
protected:
 
    ShowfotoItemViewDelegate(ShowfotoItemViewDelegatePrivate& dd, QObject* const parent);
 
private:
 
    // Disable.
    ShowfotoItemViewDelegate(const ShowfotoItemViewDelegate&)            = delete;
    ShowfotoItemViewDelegate& operator=(const ShowfotoItemViewDelegate&) = delete;
 
private:
 
    Q_DECLARE_PRIVATE(ShowfotoItemViewDelegate)
};
 
} // namespace ShowFoto
 
#endif // SHOW_FOTO_ITEM_VIEW_DELEGATE_H