void MainWindow::slotNewFrameSourceTask(const QString taskDescription, int taskSize)
{
if (m_progressDialog == NULL) {
m_progressDialog = new ProgressDialog(this);
m_progressDialog->setWindowTitle(tr("Frame extraction progress"));
connect(m_project->frameSource(), SIGNAL(signalNextTask(QString,int)), m_progressDialog, SLOT(slotNextTask(QString,int)));
connect(m_project->frameSource(), SIGNAL(signalTaskProgress(int)), m_progressDialog, SLOT(slotTaskProgress(int)));
connect(m_project->frameSource(), SIGNAL(signalTaskItemDescription(QString)), m_progressDialog, SLOT(slotTaskItemDescription(QString)));
connect(m_project->frameSource(), SIGNAL(signalAllTasksFinished()), m_progressDialog, SLOT(slotAllTasksFinished()));
connect(m_progressDialog, SIGNAL(signalAbortTask()), m_project->frameSource(), SLOT(slotAbortInitialization()));
}
/// \todo What if image missing?
void ImagesFrameSource_sV::slotContinueInitialization()
{
emit signalNextTask("Creating preview images from the input images", m_imagesList.size());
for (; m_nextFrame < m_imagesList.size(); m_nextFrame++) {
QString outputFile(framePath(m_nextFrame, FrameSize_Small));
if (QFile(outputFile).exists()) {
emit signalTaskItemDescription("Resized image already exists for " + QFileInfo(m_imagesList.at(m_nextFrame)).fileName());
} else {
emit signalTaskItemDescription(QString("Re-sizing image %1 to:\n%2")
.arg(QFileInfo(m_imagesList.at(m_nextFrame)).fileName())
.arg(outputFile));
QImage small = QImage(m_imagesList.at(m_nextFrame)).scaled(m_sizeSmall, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
small.save(outputFile);
}
emit signalTaskProgress(m_nextFrame);
if (m_stopInitialization) {
break;
}
}
m_initialized = true;
emit signalAllTasksFinished();
}
