imagecache.h

来自「爱可视605看PDF程式源代码, 基于APDF」· C头文件 代码 · 共 51 行

#ifndef IMAGECACHE_H
#define IMAGECACHE_H

#include <qcache.h>
#include <qimage.h>
#include <qobject.h>
#include <qqueue.h>
#include <qsize.h>
#include <qtimer.h>
class AImageReader;


class ImageCache : public QObject {
	Q_OBJECT

 public:
	ImageCache(int entrycnt, const QSize &imgsize);
	~ImageCache();

	void    clear();
	void    setCapacity(int capacity);
	void    setSize(const QSize &size);
	QImage* getImage(const QString &path);
	QImage* getImageAsync(const QString &path);

 signals:
	void    imageRead();

 private slots:
	void    readLines();

 private:
	QCache<QImage> m_cache;
	QQueue<QString> m_toload;
	AImageReader *m_reader;
	QString m_curpath;
	QTimer m_loadt;
	QSize m_size;
	bool m_needs_caching;

	QImage* loadImage(const QString &path, const QSize &size);
	QImage* createFolderImage(const QString &path, const QSize &size);

	void    loadImageAsync(const QString &path);
	void    loadNextImageAsync();
	void	writeThumbnail(const QString &m_path) const;
};


#endif // IMAGECACHE_H