filereadworker.cpp

   1 #include "filereadworker.h"
   2
   3 #include <QDebug>
   4 #include <QThread>
   5
   6 FileReadWorker::FileReadWorker() :
   7     AbstractWorker(),
   8     m_file()
   9 {
  10 }
  11
  12 FileReadWorker::~FileReadWorker()
  13 {
  14     qDebug() << "FileReadWorker::~FileReadWorker()---------------------------";
  15 }
  16
  17 bool FileReadWorker::open(const QString &path)
  18 {
  19     m_file.setFileName(path);
  20     return m_file.open(QIODevice::ReadOnly);
  21 }
  22
  23 void FileReadWorker::run()
  24 {
  25     if (!m_file.isOpen()) {
  26         emit finished();
  27         return;
  28     }
  29
  30     emit size(m_file.size());
  31
  32     QByteArray data;
  33     while (!m_file.atEnd()) {
  34         this->thread()->msleep(1);
  35         if (isAborted()) {
  36             emit finished(true);
  37             m_file.close();
  38             return;
  39         }
  40
  41         data.append(m_file.read(2048));
  42         emit progress(data.size());
  43     }
  44
  45     emit resultReady(data);
  46     emit finished();
  47 }