static DFA generateMachine(const Config &cfg)
{
if (cfg.cache) {
QFileInfo ruleInfo(cfg.ruleFile);
QFileInfo cacheInfo(ruleInfo.baseName() + ".dfa");
if (cacheInfo.exists()
&& cacheInfo.lastModified() > ruleInfo.lastModified()) {
QFile f(cacheInfo.absoluteFilePath());
f.open(QIODevice::ReadOnly);
QDataStream stream(&f);
DFA machine;
stream >> machine;
return machine;
}
ossimRefPtr<ossimImageData> ossimFixedTileCache::addTile(ossimRefPtr<ossimImageData> imageData,
bool duplicateData)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(theMutex);
ossimRefPtr<ossimImageData> result = NULL;
if(!imageData.valid())
{
return result;
}
if(!imageData->getBuf())
{
return result;
}
ossim_int32 id = computeId(imageData->getOrigin());
if(id < 0)
{
return result;
}
std::map<ossim_int32, ossimFixedTileCacheInfo>::iterator tileIter =
theTileMap.find(id);
if(tileIter==theTileMap.end())
{
if(duplicateData)
{
result = (ossimImageData*)imageData->dup();
}
else
{
result = imageData;
}
ossimFixedTileCacheInfo cacheInfo(result, id);
theCacheSize += imageData->getDataSizeInBytes();
theTileMap.insert(make_pair(id, cacheInfo));
if(theUseLruFlag)
{
theLruQueue.push_back(id);
}
}
return result;
}
void ThumbGenerator::run()
{
RunProlog();
m_cancel = false;
while (moreWork() && !m_cancel)
{
QString file, dir;
bool isGallery;
m_mutex.lock();
dir = m_directory;
isGallery = m_isGallery;
file = m_fileList.first();
if (!m_fileList.isEmpty())
m_fileList.pop_front();
m_mutex.unlock();
if (file.isEmpty())
continue;
QString filePath = dir + QString("/") + file;
QFileInfo fileInfo(filePath);
if (!fileInfo.exists())
continue;
if (isGallery)
{
if (fileInfo.isDir())
isGallery = checkGalleryDir(fileInfo);
else
isGallery = checkGalleryFile(fileInfo);
}
if (!isGallery)
{
QString cachePath = QString("%1%2.jpg").arg(getThumbcacheDir(dir))
.arg(file);
QFileInfo cacheInfo(cachePath);
if (cacheInfo.exists() &&
cacheInfo.lastModified() >= fileInfo.lastModified())
{
continue;
}
else
{
// cached thumbnail not there or out of date
QImage image;
// Remove the old one if it exists
if (cacheInfo.exists())
QFile::remove(cachePath);
if (fileInfo.isDir())
loadDir(image, fileInfo);
else
loadFile(image, fileInfo);
if (image.isNull())
continue; // give up;
// if the file is a movie save the image to use as a screenshot
if (GalleryUtil::IsMovie(fileInfo.filePath()))
{
QString screenshotPath = QString("%1%2-screenshot.jpg")
.arg(getThumbcacheDir(dir))
.arg(file);
image.save(screenshotPath, "JPEG", 95);
}
image = image.scaled(m_width,m_height,
Qt::KeepAspectRatio, Qt::SmoothTransformation);
image.save(cachePath, "JPEG", 95);
// deep copies all over
ThumbData *td = new ThumbData;
td->directory = dir;
td->fileName = file;
td->thumb = image.copy();
// inform parent we have thumbnail ready for it
QApplication::postEvent(m_parent, new ThumbGenEvent(td));
}
}
}
RunEpilog();
}
