empty.cpp
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright 2012 The MITRE Corporation *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <QtConcurrent>
#include <openbr/plugins/openbr_internal.h>
#include <openbr/core/qtutils.h>
#include <openbr/core/utility.h>
typedef QPair<QString,QStringList> FilesWithLabel;
namespace br
{
/*!
* \ingroup galleries
* \brief Reads/writes templates to/from folders.
* \author Josh Klontz \cite jklontz
* \br_property QString regexp An optional regular expression to match against the files extension.
*/
class EmptyGallery : public Gallery
{
Q_OBJECT
Q_PROPERTY(QString regexp READ get_regexp WRITE set_regexp RESET reset_regexp STORED false)
BR_PROPERTY(QString, regexp, QString())
qint64 gallerySize;
void init()
{
QDir dir(file.name);
QtUtils::touchDir(dir);
QDirIterator it(dir.absolutePath(), QDir::Files | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);
gallerySize = 0;
while (it.hasNext()) {
it.next();
gallerySize++;
}
}
TemplateList readBlock(bool *done)
{
TemplateList templates;
*done = true;
// Enrolling a null file is used as an idiom to initialize an algorithm
if (file.isNull()) return templates;
// Add immediate subfolders
QDir dir(file);
QList< QFuture<TemplateList> > futures;
foreach (const QString &folder, QtUtils::naturalSort(dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot))) {
const QDir subdir = dir.absoluteFilePath(folder);
futures.append(QtConcurrent::run(&EmptyGallery::getTemplates, subdir));
}
foreach (const QFuture<TemplateList> &future, futures)
templates.append(future.result());
// Add root folder
foreach (const QString &fileName, getFiles(file.name, false))
templates.append(File(fileName, dir.dirName()));
if (!regexp.isEmpty()) {
QRegExp re(regexp);
re.setPatternSyntax(QRegExp::Wildcard);
for (int i=templates.size()-1; i>=0; i--) {
if (!re.exactMatch(templates[i].file.fileName())) {
templates.removeAt(i);
}
}
}
for (int i = 0; i < templates.size(); i++) templates[i].file.set("progress", i);
return templates;
}
void write(const Template &t)
{
static QMutex diskLock;
// Enrolling a null file is used as an idiom to initialize an algorithm
if (file.name.isEmpty()) return;
const QString newFormat = file.get<QString>("newFormat",QString());
QString destination = file.name + "/" + (file.getBool("preservePath") ? t.file.path()+"/" : QString());
destination += (newFormat.isEmpty() ? t.file.fileName() : t.file.baseName()+newFormat);
QMutexLocker diskLocker(&diskLock); // Windows prefers to crash when writing to disk in parallel
if (t.isNull()) {
QtUtils::copyFile(t.file.resolved(), destination);
} else {
QScopedPointer<Format> format(Factory<Format>::make(destination));
format->write(t);
}
}
qint64 totalSize()
{
return gallerySize;
}
static TemplateList getTemplates(const QDir &dir)
{
const QList<FilesWithLabel> filesWithLabels = getFilesWithLabels(dir);
TemplateList templates; templates.reserve(filesWithLabels.size());
foreach (const FilesWithLabel &filesWithLabel, filesWithLabels)
foreach (const QString &file, filesWithLabel.second)
templates.append(File(file, filesWithLabel.first));
return templates;
}
};
BR_REGISTER(Gallery, EmptyGallery)
} // namespace br
#include "gallery/empty.moc"