fileutil.h

#ifndef FILEUTIL_H
#define FILEUTIL_H
class QString;
#include <QDateTime>
enum class EncodingFormat:int
{
    ANSI = 0,//GBK
    UTF16LE,
    UTF16BE,
    UTF8,
    UTF8BOM,
};

class AppendInterface{
public:
    virtual void append(QString line) = 0;
    virtual void clear() = 0;
};
typedef std::pair<QString,QString>  NameUrl;

class FileUtil
{
private:
        FileUtil() = delete;
public:
    /**  read file to append in text
     * @brief readFileToShow
     * @param filePath
     * @param ap
     */
    static void readFileToShow(QString filePath,AppendInterface *ap);
    static EncodingFormat FileCharacterEncoding(const QString &fileName);
    static QString  sizeFormat(qint64 size);
    static const  QString TIME_FORMAT ;
    static inline QString timeStr(const QDateTime & datetime){
        return datetime.toString(TIME_FORMAT);
    }
    static void  defaultOpen(QString filepaths);
    static QList<NameUrl> generatePathUrls(QString filePath);
    static QString generateFileLink(QString filePath);
    /*
     * generate a new file , if filename exists, add one int to filename. /home/ljl/abc.txt => /home/ljl/abc0.txt
    */
    static QString getNewFile(QString path, QString fileName);

};



#endif // FILEUTIL_H