File indexing completed on 2024-04-28 04:58:04

 /*  This file is part of the KDE libraries
     SPDX-FileCopyrightText: 2000 Malte Starostik <malte@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef _THUMBNAIL_H_
 #define _THUMBNAIL_H_
 
 #include <QHash>
 #include <QPainter>
 #include <QRandomGenerator>
 #include <QSet>
 
 #include <KIO/ThumbnailCreator>
 #include <KIO/WorkerBase>
 #include <KPluginMetaData>
 
 #include <kio_version.h>
 
 class ThumbCreator;
 class QImage;
 
 struct ThumbCreatorWithMetadata {
     std::unique_ptr<KIO::ThumbnailCreator> creator;
     bool cacheThumbnail = true;
     bool devicePixelRatioDependent = false;
     bool handleSequences = false;
 };
 
 class ThumbnailProtocol : public KIO::WorkerBase
 {
 public:
     ThumbnailProtocol(const QByteArray &pool, const QByteArray &app);
     ~ThumbnailProtocol() override;
 
     KIO::WorkerResult get(const QUrl &url) override;
 
 protected:
     ThumbCreatorWithMetadata *getThumbCreator(const QString &plugin);
     bool isOpaque(const QImage &image) const;
     void drawPictureFrame(QPainter *painter, const QPoint &pos, const QImage &image, int frameWidth, QSize imageTargetSize, int rotationAngle) const;
     QImage thumbForDirectory(const QString &directory);
     KPluginMetaData pluginForMimeType(const QString &mimeType);
 
     float sequenceIndex() const;
 
 private:
     /**
      * Creates a sub thumbnail for the directory thumbnail. If a cached
      * version of the sub thumbnail is available, the cached version will be used.
      * If no cached version is available, the created sub thumbnail will be
      * added to the cache for later use.
      */
     bool createSubThumbnail(QImage &thumbnail, const QString &filePath, int segmentWidth, int segmentHeight);
 
     /**
      * Draw the SubThumbnail
      **/
     void drawSubThumbnail(QPainter &p, QImage subThumbnail, int width, int height, int xPos, int yPos, int borderStrokeWidth);
 
 private:
     void ensureDirsCreated();
     bool createThumbnail(ThumbCreatorWithMetadata *subCreator, const QString &filePath, int width, int height, QImage &thumbnail);
 
     QString m_mimeType;
     int m_width;
     int m_height;
     qreal m_devicePixelRatio;
     // Thumbnail creators
     QHash<QString, ThumbCreatorWithMetadata *> m_creators;
     QStringList m_enabledPlugins;
     QSet<QString> m_propagationDirectories;
     QString m_thumbBasePath;
     qint64 m_maxFileSize;
     QRandomGenerator m_randomGenerator;
     float m_sequenceIndexWrapAroundPoint = -1;
 };
 
 #endif