src/visualizer/LogInput.cpp

   1 /** Aesalon, a tool to visualize program behaviour in real time.
   2         Copyright (C) 2009-2011, Aesalon development team.
   3
   4         Aesalon is distributed under the terms of the GNU GPLv3. See
   5         the included file LICENSE for more information.
   6
   7         @file src/visualizer/LogInput.cpp
   8 */
   9
  10 #include <QString>
  11
  12 #include "visualizer/LogInput.h"
  13 #include "util/MessageSystem.h"
  14
  15 namespace Visualizer {
  16
  17 LogInput::LogInput(const std::string& filename, Visualizer::ArtisanManager *artisanManager)
  18         : DataInput(artisanManager) {
  19         m_file.setFileName(QString::fromStdString(filename));
  20
  21         m_file.open(QIODevice::ReadOnly);
  22
  23         connect(&m_timer, SIGNAL(timeout()), this, SLOT(readMore()));
  24         connect(this, SIGNAL(moreData(QByteArray)), this, SLOT(addData(QByteArray)));
  25
  26         m_timer.start(10);
  27 }
  28
  29 LogInput::~LogInput() {
  30
  31 }
  32
  33 void LogInput::readMore() {
  34         QByteArray more = m_file.read(1048576);
  35
  36         if(more.size() == 0) m_timer.stop();
  37         else {
  38                 emit moreData(more);
  39         }
  40 }
  41
  42 } // namespace Visualizer