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#ifndef PAGECACHE_H
#define PAGECACHE_H
#include <QBrush>
#include <QHash>
#include <QPixmap>
#include <QRunnable>
#include <QThread>
#include <QPdfDocument>
class QPdfDocument;
class PageRenderer : public QThread
{
Q_OBJECT
public:
PageRenderer();
~PageRenderer();
public slots:
QVector<QSizeF> openDocument(const QUrl &location);
void requestPage(int page, qreal zoom, Priority priority = QThread::NormalPriority);
signals:
void pageReady(int page, qreal zoom, QImage image);
protected:
Q_DECL_OVERRIDE void run();
private:
void renderPage(int page, qreal zoom);
private:
QPdfDocument m_doc;
// current request only
int m_page;
qreal m_zoom;
// performance statistics
qreal m_minRenderTime;
qreal m_maxRenderTime;
qreal m_totalRenderTime;
int m_totalPagesRendered;
};
#endif // PAGECACHE_H
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