void PiqslImageView::setSelectedImage(const QModelIndexList& indexes)
{
if(m_image)
disconnect(m_image.data(), 0, this, 0);
if(indexes.empty())
{
// m_image.reset();
update();
return;
}
int prevWidth = 0;
int prevHeight = 0;
if(m_image)
{
prevWidth = m_image->frameWidth();
prevHeight = m_image->frameHeight();
}
m_image = indexes[0].data().value<QSharedPointer<CqImage> >();
if(prevWidth > 0 && m_image->frameWidth() > 0)
{
// Keep the center of the image in the same place when switching to an
// image of different dimensions.
m_tlPos += 0.5f*QPointF(prevWidth - m_image->frameWidth(),
prevHeight - m_image->frameHeight());
}
else
centerImage();
connect(m_image.data(), SIGNAL(updated(int,int,int,int)),
this, SLOT(imageUpdated(int,int,int,int)));
connect(m_image.data(), SIGNAL(resized()), this, SLOT(imageResized()));
update();
}
void rescalethread::scaleImage(const QString &imageFileName, const int ¤tIndex)
{
QImage image, result;
//construct the sting for the filename of the resized image
targetFileName = QFileInfo(imageFileName).path() + QDir::separator() +"resized" + QDir::separator() + QFileInfo(imageFileName).baseName()+ "_resized" +".jpg";
//if image was loaded succesfully, then scale it
if(image.load(imageFileName))
{
//resize to this width/height and save to target file location
result = image.scaled(resizeWidth, resizeHeight, Qt::KeepAspectRatio, Qt::FastTransformation);
//try saving the image
if(result.save(targetFileName, "JPG"))
{
//this signal is required to communicate the progress status on the main GUI thread
emit imageResized(currentIndex);
}
else
{
//there was a problem with saving the image
emit imageSaveErrorSIGNAL(imageFileName);
}
}
else
{
//there was a problem with loading the image
emit imageLoadErrorSIGNAL(imageFileName);
}
}