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#pragma once
#include <qobject.h>
#include <qqmlintegration.h>
#include <QtQuick/QQuickItem>
class CachingImageManager : public QObject {
Q_OBJECT;
QML_ELEMENT;
Q_PROPERTY(QQuickItem* item READ item WRITE setItem NOTIFY itemChanged REQUIRED);
Q_PROPERTY(QUrl cacheDir READ cacheDir WRITE setCacheDir NOTIFY cacheDirChanged REQUIRED);
Q_PROPERTY(QString path READ path WRITE setPath NOTIFY pathChanged);
Q_PROPERTY(QUrl cachePath READ cachePath NOTIFY cachePathChanged);
public:
explicit CachingImageManager(QObject* parent = nullptr): QObject(parent) {};
[[nodiscard]] QQuickItem* item() const;
void setItem(QQuickItem* item);
[[nodiscard]] QUrl cacheDir() const;
void setCacheDir(const QUrl& cacheDir);
[[nodiscard]] QString path() const;
void setPath(const QString& path);
[[nodiscard]] QUrl cachePath() const;
Q_INVOKABLE void updateSource();
Q_INVOKABLE void updateSource(const QString& path);
signals:
void itemChanged();
void cacheDirChanged();
void pathChanged();
void cachePathChanged();
void usingCacheChanged();
private:
QString m_shaPath;
QQuickItem* m_item;
QUrl m_cacheDir;
QString m_path;
QUrl m_cachePath;
QMetaObject::Connection m_widthConn;
QMetaObject::Connection m_heightConn;
[[nodiscard]] qreal effectiveScale() const;
[[nodiscard]] int effectiveWidth() const;
[[nodiscard]] int effectiveHeight() const;
void createCache(const QString& path, const QString& cache, const QString& fillMode, const QSize& size) const;
[[nodiscard]] QString sha256sum(const QString& path) const;
};
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