File indexing completed on 2024-04-28 09:25:32

 /*
     SPDX-FileCopyrightText: 2018 Michail Vourlakos <mvourlakos@gmail.com>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef PLASMABACKGROUNDCACHE_H
 #define PLASMABACKGROUNDCACHE_H
 
 // local
 #include "screenpool.h"
 
 // Qt
 #include <QHash>
 #include <QObject>
 
 // Plasma
 #include <Plasma>
 
 // KDE
 #include <KConfigGroup>
 #include <KSharedConfig>
 
 struct imageHints {
     bool busy{false};
     float brightness{-1000};
 };
 
 typedef QHash<Plasma::Types::Location, imageHints> EdgesHash;
 
 namespace Latte {
 namespace PlasmaExtended {
 
 class BackgroundCache: public QObject
 {
     Q_OBJECT
 
 public:
     static BackgroundCache *self();
     ~BackgroundCache() override;
 
     bool busyFor(QString activity, QString screen, Plasma::Types::Location location);
     float brightnessFor(QString activity, QString screen, Plasma::Types::Location location);
 
     QString background(QString activity, QString screen) const;
 
     void setBackgroundFromBroadcast(QString activity, QString screen, QString filename);
     void setBroadcastedBackgroundsEnabled(QString activity, QString screen, bool enabled);
 
 signals:
     void backgroundChanged(const QString &activity, const QString &screenName);
 
 private slots:
     void reload();
     void settingsFileChanged(const QString &file);
 
 private:
     BackgroundCache(QObject *parent = nullptr);
 
     bool backgroundIsBroadcasted(QString activity, QString screenName) const;
     bool pluginExistsFor(QString activity, QString screenName) const;
     bool areaIsBusy(float bright1, float bright2) const;
     bool busyForFile(QString imageFile, Plasma::Types::Location location);
     bool isDesktopContainment(const KConfigGroup &containment) const;
 
     float brightnessForFile(QString imageFile, Plasma::Types::Location location);
     float brightnessFromArea(QImage &image, int firstRow, int firstColumn, int endRow, int endColumn);
     QString backgroundFromConfig(const KConfigGroup &config, QString wallpaperPlugin) const;
 
     void cleanupHashes();
     void updateImageCalculations(QString imageFile, Plasma::Types::Location location);
 
 private:
     bool m_initialized{false};
 
     QString m_defaultWallpaperPath;
 
     ScreenPool *m_pool{nullptr};
 
     //! screen aware backgrounds: activity id, screen name, backgroundfile
     QHash<QString, QHash<QString, QString>> m_backgrounds;
 
     //! plugin names tracked: activity id, screen name, pluginName
     QHash<QString, QHash<QString, QString>> m_plugins;
 
     //! backgrounds that are broadcasted (not found through plasma files):
     //! and have higher priority: activity id, screen names
     QHash<QString, QList<QString>> m_broadcasted;
 
     //! image file and brightness per edge
     QHash<QString, EdgesHash> m_hintsCache;
 
     KSharedConfig::Ptr m_plasmaConfig;
 };
 
 }
 }
 
 #endif