diff --git a/Utilities/Util.cpp b/Utilities/Util.cpp index b695a29b..1aa166cd 100644 --- a/Utilities/Util.cpp +++ b/Utilities/Util.cpp @@ -1,812 +1,812 @@ /* Copyright (C) 2003-2010 Jesper K. Pedersen This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "Util.h" extern "C" { #include #include #include #include #include #include #include } #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "JpeglibWithFix.h" /** * Add a line label + info text to the result text if info is not empty. * If the result already contains something, a HTML newline is added first. * To be used in createInfoText(). */ static void AddNonEmptyInfo(const QString &label, const QString &info, QString *result) { if (info.isEmpty()) return; if (!result->isEmpty()) *result += QString::fromLatin1("
"); result->append(label).append(info); } /** * Given an ImageInfoPtr this function will create an HTML blob about the * image. The blob is used in the viewer and in the tool tip box from the * thumbnail view. * * As the HTML text is created, the parameter linkMap is filled with * information about hyperlinks. The map maps from an index to a pair of * (categoryName, categoryItem). This linkMap is used when the user selects * one of the hyberlinks. */ QString Utilities::createInfoText( DB::ImageInfoPtr info, QMap< int,QPair >* linkMap ) { Q_ASSERT( info ); QString result; if ( Settings::SettingsData::instance()->showFilename() ) { AddNonEmptyInfo(i18n("File Name: "), info->fileName().relative(), &result); } if ( Settings::SettingsData::instance()->showDate() ) { AddNonEmptyInfo(i18n("Date: "), info->date().toString( Settings::SettingsData::instance()->showTime() ? true : false ), &result); } /* XXX */ if ( Settings::SettingsData::instance()->showImageSize() && info->mediaType() == DB::Image) { const QSize imageSize = info->size(); // Do not add -1 x -1 text if (imageSize.width() >= 0 && imageSize.height() >= 0) { const double megapix = imageSize.width() * imageSize.height() / 1000000.0; QString info = i18nc("width x height","%1x%2" ,QString::number(imageSize.width()) ,QString::number(imageSize.height())); if (megapix > 0.05) { info += i18nc("short for: x megapixels"," (%1MP)" ,QString::number(megapix, 'f', 1)); } const double aspect = (double) imageSize.width() / (double) imageSize.height(); if (aspect > 1) info += i18nc("aspect ratio"," (%1:1)" ,QLocale::system().toString(aspect, 'f', 2)); else if (aspect >= 0.995 && aspect < 1.005) info += i18nc("aspect ratio"," (1:1)"); else info += i18nc("aspect ratio"," (1:%1)" ,QLocale::system().toString(1.0/aspect, 'f', 2)); AddNonEmptyInfo(i18n("Image Size: "), info, &result); } } if ( Settings::SettingsData::instance()->showRating() ) { if ( info->rating() != -1 ) { if ( ! result.isEmpty() ) result += QString::fromLatin1("
"); QUrl rating; rating.setScheme(QString::fromLatin1("kratingwidget")); // we don't use the host part, but if we don't set it, we can't use port: rating.setHost(QString::fromLatin1("int")); rating.setPort(qMin( qMax( static_cast(0), info->rating() ), static_cast(10))); result += QString::fromLatin1("").arg( rating.toString(QUrl::None) ); } } QList categories = DB::ImageDB::instance()->categoryCollection()->categories(); int link = 0; Q_FOREACH( const DB::CategoryPtr category, categories ) { const QString categoryName = category->name(); if ( category->doShow() ) { StringSet items = info->itemsOfCategory( categoryName ); if (Settings::SettingsData::instance()->hasUntaggedCategoryFeatureConfigured() && ! Settings::SettingsData::instance()->untaggedImagesTagVisible()) { if (categoryName == Settings::SettingsData::instance()->untaggedCategory()) { if (items.contains(Settings::SettingsData::instance()->untaggedTag())) { items.remove(Settings::SettingsData::instance()->untaggedTag()); } } } if (!items.empty()) { QString title = QString::fromUtf8("%1: ").arg(category->name()); QString infoText; bool first = true; Q_FOREACH( const QString &item, items) { if ( first ) first = false; else infoText += QString::fromLatin1( ", " ); if ( linkMap ) { ++link; (*linkMap)[link] = QPair( categoryName, item ); infoText += QString::fromLatin1( "%2").arg( link ).arg( item ); infoText += formatAge(category, item, info); } else infoText += item; } AddNonEmptyInfo(title, infoText, &result); } } } if ( Settings::SettingsData::instance()->showLabel()) { AddNonEmptyInfo(i18n("Label: "), info->label(), &result); } - if ( Settings::SettingsData::instance()->showDescription()) { + if ( Settings::SettingsData::instance()->showDescription() && !info->description().trimmed().isEmpty() ) { AddNonEmptyInfo(i18n("Description: "), info->description(), &result); } QString exifText; if ( Settings::SettingsData::instance()->showEXIF() ) { typedef QMap ExifMap; typedef ExifMap::const_iterator ExifMapIterator; ExifMap exifMap = Exif::Info::instance()->infoForViewer( info->fileName(), Settings::SettingsData::instance()->iptcCharset() ); for( ExifMapIterator exifIt = exifMap.constBegin(); exifIt != exifMap.constEnd(); ++exifIt ) { if ( exifIt.key().startsWith( QString::fromLatin1( "Exif." ) ) ) for ( QStringList::const_iterator valuesIt = exifIt.value().constBegin(); valuesIt != exifIt.value().constEnd(); ++valuesIt ) { QString exifName = exifIt.key().split( QChar::fromLatin1('.') ).last(); AddNonEmptyInfo(QString::fromLatin1( "%1: ").arg(exifName), *valuesIt, &exifText); } } QString iptcText; for( ExifMapIterator exifIt = exifMap.constBegin(); exifIt != exifMap.constEnd(); ++exifIt ) { if ( !exifIt.key().startsWith( QString::fromLatin1( "Exif." ) ) ) for ( QStringList::const_iterator valuesIt = exifIt.value().constBegin(); valuesIt != exifIt.value().constEnd(); ++valuesIt ) { QString iptcName = exifIt.key().split( QChar::fromLatin1('.') ).last(); AddNonEmptyInfo(QString::fromLatin1( "%1: ").arg(iptcName), *valuesIt, &iptcText); } } if ( !iptcText.isEmpty() ) { if ( exifText.isEmpty() ) exifText = iptcText; else exifText += QString::fromLatin1( "
" ) + iptcText; } } if ( !result.isEmpty() && !exifText.isEmpty() ) result += QString::fromLatin1( "
" ); result += exifText; return result; } using DateSpec = QPair; DateSpec dateDiff(const QDate& birthDate, const QDate& imageDate) { const int bday = birthDate.day(); const int iday = imageDate.day(); const int bmonth = birthDate.month(); const int imonth = imageDate.month(); const int byear = birthDate.year(); const int iyear = imageDate.year(); // Image before birth const int diff = birthDate.daysTo(imageDate); if (diff < 0) return qMakePair(0, 'I'); if (diff < 31) return qMakePair(diff, 'D'); int months = (iyear-byear)*12; months += (imonth-bmonth); months += (iday >= bday) ? 0 : -1; if ( months < 24) return qMakePair(months, 'M'); else return qMakePair(months/12, 'Y'); } QString formatDate(const DateSpec& date) { if (date.second == 'I') return {}; else if (date.second == 'D') return i18np("1 day", "%1 days", date.first); else if (date.second == 'M') return i18np("1 month", "%1 months", date.first); else return i18np("1 year", "%1 years", date.first); } void test() { Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1971,7,11))) == QString::fromLatin1("0 days")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1971,8,10))) == QString::fromLatin1("30 days")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1971,8,11))) == QString::fromLatin1("1 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1971,8,12))) == QString::fromLatin1("1 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1971,9,10))) == QString::fromLatin1("1 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1971,9,11))) == QString::fromLatin1("2 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,6,10))) == QString::fromLatin1("10 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,6,11))) == QString::fromLatin1("11 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,6,12))) == QString::fromLatin1("11 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,7,10))) == QString::fromLatin1("11 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,7,11))) == QString::fromLatin1("12 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,7,12))) == QString::fromLatin1("12 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1972,12,11))) == QString::fromLatin1("17 month")); Q_ASSERT(formatDate(dateDiff(QDate(1971,7,11), QDate(1973,7,11))) == QString::fromLatin1("2 years")); } QString Utilities::formatAge(DB::CategoryPtr category, const QString &item, DB::ImageInfoPtr info) { // test(); // I wish I could get my act together to set up a test suite. const QDate birthDate = category->birthDate(item); const QDate start = info->date().start().date(); const QDate end = info->date().end().date(); if (birthDate.isNull() || start.isNull()) return {}; if ( start == end) return QString::fromUtf8(" (%1)").arg(formatDate(dateDiff(birthDate, start))); else { DateSpec lower = dateDiff(birthDate,start); DateSpec upper = dateDiff(birthDate,end); if (lower == upper) return QString::fromUtf8(" (%1)").arg(formatDate(lower)); else if (lower.second == 'I') return QString::fromUtf8(" (< %1)").arg(formatDate(upper)); else { if (lower.second == upper.second) return QString::fromUtf8(" (%1-%2)").arg(lower.first).arg(formatDate(upper)); else return QString::fromUtf8(" (%1-%2)").arg(formatDate(lower)).arg(formatDate(upper)); } } } void Utilities::checkForBackupFile( const QString& fileName, const QString& message ) { QString backupName = QFileInfo( fileName ).absolutePath() + QString::fromLatin1("/.#") + QFileInfo( fileName ).fileName(); QFileInfo backUpFile( backupName); QFileInfo indexFile( fileName ); if ( !backUpFile.exists() || indexFile.lastModified() > backUpFile.lastModified() || backUpFile.size() == 0 ) if ( !( backUpFile.exists() && !message.isNull() ) ) return; int code; if ( message.isNull() ) code = KMessageBox::questionYesNo( nullptr, i18n("Autosave file '%1' exists (size %3 KB) and is newer than '%2'. " "Should the autosave file be used?", backupName, fileName, backUpFile.size() >> 10 ), i18n("Found Autosave File") ); else if ( backUpFile.size() > 0 ) code = KMessageBox::warningYesNo( nullptr,i18n( "

Error: Cannot use current database file '%1':

%2

" "

Do you want to use autosave (%3 - size %4 KB) instead of exiting?

" "

(Manually verifying and copying the file might be a good idea)

", fileName, message, backupName, backUpFile.size() >> 10 ), i18n("Recover from Autosave?") ); else { KMessageBox::error( nullptr, i18n( "

Error: %1

Also autosave file is empty, check manually " "if numbered backup files exist and can be used to restore index.xml.

", message ) ); exit(-1); } if ( code == KMessageBox::Yes ) { QFile in( backupName ); if ( in.open( QIODevice::ReadOnly ) ) { QFile out( fileName ); if (out.open( QIODevice::WriteOnly ) ) { char data[1024]; int len; while ( (len = in.read( data, 1024 ) ) ) out.write( data, len ); } } } else if ( !message.isNull() ) exit(-1); } bool Utilities::ctrlKeyDown() { return QApplication::keyboardModifiers() & Qt::ControlModifier; } void Utilities::copyList( const QStringList& from, const QString& directoryTo ) { for( QStringList::ConstIterator it = from.constBegin(); it != from.constEnd(); ++it ) { QString destFile = directoryTo + QString::fromLatin1( "/" ) + QFileInfo(*it).fileName(); if ( ! QFileInfo( destFile ).exists() ) { const bool ok = copy( *it, destFile ); if ( !ok ) { KMessageBox::error( nullptr, i18n("Unable to copy '%1' to '%2'.", *it , destFile ), i18n("Error Running Demo") ); exit(-1); } } } } QString Utilities::setupDemo() { QString demoDir = QString::fromLatin1( "%1/kphotoalbum-demo-%2" ).arg(QDir::tempPath()).arg(QString::fromLocal8Bit( qgetenv( "LOGNAME" ) )); QFileInfo fi(demoDir); if ( ! fi.exists() ) { bool ok = QDir().mkdir( demoDir ); if ( !ok ) { KMessageBox::error( nullptr, i18n("Unable to create directory '%1' needed for demo.", demoDir ), i18n("Error Running Demo") ); exit(-1); } } // index.xml QString demoDB = locateDataFile(QString::fromLatin1("demo/index.xml")); if ( demoDB.isEmpty() ) { qDebug() << "No demo database in standard locations:" << QStandardPaths::standardLocations(QStandardPaths::DataLocation); exit(-1); } QString configFile = demoDir + QString::fromLatin1( "/index.xml" ); copy(demoDB, configFile); // Images const QStringList kpaDemoDirs = QStandardPaths::locateAll( QStandardPaths::DataLocation, QString::fromLatin1("demo"), QStandardPaths::LocateDirectory); QStringList images; Q_FOREACH(const QString &dir, kpaDemoDirs) { QDirIterator it(dir, QStringList() << QStringLiteral("*.jpg") << QStringLiteral("*.avi")); while (it.hasNext()) { images.append(it.next()); } } copyList( images, demoDir ); // CategoryImages QString catDir = demoDir + QString::fromLatin1("/CategoryImages"); fi = QFileInfo(catDir); if ( ! fi.exists() ) { bool ok = QDir().mkdir( catDir ); if ( !ok ) { KMessageBox::error( nullptr, i18n("Unable to create directory '%1' needed for demo.", catDir ), i18n("Error Running Demo") ); exit(-1); } } const QStringList kpaDemoCatDirs = QStandardPaths::locateAll( QStandardPaths::DataLocation, QString::fromLatin1("demo/CategoryImages"), QStandardPaths::LocateDirectory); QStringList catImages; Q_FOREACH(const QString &dir, kpaDemoCatDirs) { QDirIterator it(dir, QStringList() << QStringLiteral("*.jpg")); while (it.hasNext()) { catImages.append(it.next()); } } copyList( catImages, catDir ); return configFile; } bool Utilities::copy( const QString& from, const QString& to ) { if ( QFileInfo(to).exists()) QDir().remove(to); return QFile::copy(from,to); } bool Utilities::makeHardLink( const QString& from, const QString& to ) { if (link(from.toLocal8Bit().constData(), to.toLocal8Bit().constData()) != 0) return false; else return true; } bool Utilities::makeSymbolicLink( const QString& from, const QString& to ) { if (symlink(from.toLocal8Bit().constData(), to.toLocal8Bit().constData()) != 0) return false; else return true; } bool Utilities::canReadImage( const DB::FileName& fileName ) { bool fastMode = !Settings::SettingsData::instance()->ignoreFileExtension(); QMimeDatabase::MatchMode mode = fastMode ? QMimeDatabase::MatchExtension : QMimeDatabase::MatchDefault; QMimeDatabase db; QMimeType mimeType = db.mimeTypeForFile( fileName.absolute(), mode ); return QImageReader::supportedMimeTypes().contains( mimeType.name().toUtf8() ) || ImageManager::ImageDecoder::mightDecode( fileName ); } QString Utilities::locateDataFile(const QString& fileName) { return QStandardPaths::locate(QStandardPaths::DataLocation, fileName); } QString Utilities::readFile( const QString& fileName ) { if ( fileName.isEmpty() ) { KMessageBox::error( nullptr, i18n("

No file name given!

") ); return QString(); } QFile file( fileName ); if ( !file.open( QIODevice::ReadOnly ) ) { //KMessageBox::error( nullptr, i18n("Could not open file %1").arg( fileName ) ); return QString(); } QTextStream stream( &file ); QString content = stream.readAll(); file.close(); return content; } struct myjpeg_error_mgr : public jpeg_error_mgr { jmp_buf setjmp_buffer; }; extern "C" { static void myjpeg_error_exit(j_common_ptr cinfo) { myjpeg_error_mgr* myerr = (myjpeg_error_mgr*) cinfo->err; char buffer[JMSG_LENGTH_MAX]; (*cinfo->err->format_message)(cinfo, buffer); //kWarning() << buffer; longjmp(myerr->setjmp_buffer, 1); } } namespace Utilities { bool loadJPEG(QImage *img, FILE* inputFile, QSize* fullSize, int dim ); } bool Utilities::loadJPEG(QImage *img, const DB::FileName& imageFile, QSize* fullSize, int dim) { FILE* inputFile=fopen( QFile::encodeName(imageFile.absolute()).constData(), "rb"); if(!inputFile) return false; bool ok = loadJPEG( img, inputFile, fullSize, dim ); fclose(inputFile); return ok; } bool Utilities::loadJPEG(QImage *img, FILE* inputFile, QSize* fullSize, int dim ) { struct jpeg_decompress_struct cinfo; struct myjpeg_error_mgr jerr; // JPEG error handling - thanks to Marcus Meissner cinfo.err = jpeg_std_error(&jerr); cinfo.err->error_exit = myjpeg_error_exit; if (setjmp(jerr.setjmp_buffer)) { jpeg_destroy_decompress(&cinfo); return false; } jpeg_create_decompress(&cinfo); jpeg_stdio_src(&cinfo, inputFile); jpeg_read_header(&cinfo, TRUE); *fullSize = QSize( cinfo.image_width, cinfo.image_height ); int imgSize = qMax(cinfo.image_width, cinfo.image_height); //libjpeg supports a sort of scale-while-decoding which speeds up decoding int scale=1; if (dim != -1) { while(dim*scale*2<=imgSize) { scale*=2; } if(scale>8) scale=8; } cinfo.scale_num=1; cinfo.scale_denom=scale; // Create QImage jpeg_start_decompress(&cinfo); switch(cinfo.output_components) { case 3: case 4: *img = QImage( cinfo.output_width, cinfo.output_height, QImage::Format_RGB32); if (img->isNull()) return false; break; case 1: // B&W image *img = QImage( cinfo.output_width, cinfo.output_height, QImage::Format_Indexed8); if (img->isNull()) return false; img->setColorCount(256); for (int i=0; i<256; i++) img->setColor(i, qRgb(i,i,i)); break; default: return false; } QVector linesVector; linesVector.reserve(img->height()); for (int i = 0; i < img->height(); ++i) linesVector.push_back(img->scanLine(i)); uchar** lines = linesVector.data(); while (cinfo.output_scanline < cinfo.output_height) jpeg_read_scanlines(&cinfo, lines + cinfo.output_scanline, cinfo.output_height); jpeg_finish_decompress(&cinfo); // Expand 24->32 bpp if ( cinfo.output_components == 3 ) { for (uint j=0; jscanLine(j) + cinfo.output_width*3; QRgb *out = (QRgb*)( img->scanLine(j) ); for (uint i=cinfo.output_width; i--; ) { in-=3; out[i] = qRgb(in[0], in[1], in[2]); } } } /*int newMax = qMax(cinfo.output_width, cinfo.output_height); int newx = size_*cinfo.output_width / newMax; int newy = size_*cinfo.output_height / newMax;*/ jpeg_destroy_decompress(&cinfo); //image = img.smoothScale(newx,newy); return true; } bool Utilities::isJPEG( const DB::FileName& fileName ) { QString format= QString::fromLocal8Bit( QImageReader::imageFormat( fileName.relative() ) ); return format == QString::fromLocal8Bit( "jpeg" ); } namespace Utilities { QString normalizedFileName( const QString& fileName ) { return QFileInfo(fileName).absoluteFilePath(); } QString dereferenceSymLinks( const QString& fileName ) { QFileInfo fi(fileName); int rounds = 256; while (fi.isSymLink() && --rounds > 0) fi = QFileInfo(fi.readLink()); if (rounds == 0) return QString(); return fi.filePath(); } } QString Utilities::stripEndingForwardSlash( const QString& fileName ) { static QString slash = QString::fromLatin1("/"); if ( fileName.endsWith( slash ) ) return fileName.left( fileName.length()-1); else return fileName; } QString Utilities::relativeFolderName( const QString& fileName) { int index= fileName.lastIndexOf( QChar::fromLatin1('/'), -1); if (index == -1) return QString(); else return fileName.left( index ); } void Utilities::deleteDemo() { QString dir = QString::fromLatin1( "%1/kphotoalbum-demo-%2" ).arg(QDir::tempPath()).arg(QString::fromLocal8Bit( qgetenv( "LOGNAME" ) ) ); QUrl demoUrl = QUrl::fromLocalFile( dir ); KJob *delDemoJob = KIO::del( demoUrl ); KJobWidgets::setWindow( delDemoJob, MainWindow::Window::theMainWindow()); delDemoJob->exec(); } QString Utilities::stripImageDirectory( const QString& fileName ) { if ( fileName.startsWith( Settings::SettingsData::instance()->imageDirectory() ) ) return fileName.mid( Settings::SettingsData::instance()->imageDirectory().length() ); else return fileName; } QString Utilities::absoluteImageFileName( const QString& relativeName ) { return stripEndingForwardSlash( Settings::SettingsData::instance()->imageDirectory() ) + QString::fromLatin1( "/" ) + relativeName; } QString Utilities::imageFileNameToAbsolute( const QString& fileName ) { if ( fileName.startsWith( Settings::SettingsData::instance()->imageDirectory() ) ) return fileName; else if ( fileName.startsWith( QString::fromLatin1("file://") ) ) return imageFileNameToAbsolute( fileName.mid( 7 ) ); // 7 == length("file://") else if ( fileName.startsWith( QString::fromLatin1("/") ) ) return QString(); // Not within our image root else return absoluteImageFileName( fileName ); } bool operator>( const QPoint& p1, const QPoint& p2) { return p1.y() > p2.y() || (p1.y() == p2.y() && p1.x() > p2.x() ); } bool operator<( const QPoint& p1, const QPoint& p2) { return p1.y() < p2.y() || ( p1.y() == p2.y() && p1.x() < p2.x() ); } const QSet& Utilities::supportedVideoExtensions() { static QSet videoExtensions; if ( videoExtensions.empty() ) { videoExtensions.insert( QString::fromLatin1( "3gp" ) ); videoExtensions.insert( QString::fromLatin1( "avi" ) ); videoExtensions.insert( QString::fromLatin1( "mp4" ) ); videoExtensions.insert( QString::fromLatin1( "m4v" ) ); videoExtensions.insert( QString::fromLatin1( "mpeg" ) ); videoExtensions.insert( QString::fromLatin1( "mpg" ) ); videoExtensions.insert( QString::fromLatin1( "qt" ) ); videoExtensions.insert( QString::fromLatin1( "mov" ) ); videoExtensions.insert( QString::fromLatin1( "moov" ) ); videoExtensions.insert( QString::fromLatin1( "qtvr" ) ); videoExtensions.insert( QString::fromLatin1( "rv" ) ); videoExtensions.insert( QString::fromLatin1( "3g2" ) ); videoExtensions.insert( QString::fromLatin1( "fli" ) ); videoExtensions.insert( QString::fromLatin1( "flc" ) ); videoExtensions.insert( QString::fromLatin1( "mkv" ) ); videoExtensions.insert( QString::fromLatin1( "mng" ) ); videoExtensions.insert( QString::fromLatin1( "asf" ) ); videoExtensions.insert( QString::fromLatin1( "asx" ) ); videoExtensions.insert( QString::fromLatin1( "wmp" ) ); videoExtensions.insert( QString::fromLatin1( "wmv" ) ); videoExtensions.insert( QString::fromLatin1( "ogm" ) ); videoExtensions.insert( QString::fromLatin1( "rm" ) ); videoExtensions.insert( QString::fromLatin1( "flv" ) ); videoExtensions.insert( QString::fromLatin1( "webm" ) ); videoExtensions.insert( QString::fromLatin1( "mts" ) ); videoExtensions.insert( QString::fromLatin1( "ogg" ) ); videoExtensions.insert( QString::fromLatin1( "ogv" ) ); videoExtensions.insert( QString::fromLatin1( "m2ts" ) ); } return videoExtensions; } bool Utilities::isVideo( const DB::FileName& fileName ) { QFileInfo fi( fileName.relative() ); QString ext = fi.suffix().toLower(); return supportedVideoExtensions().contains( ext ); } bool Utilities::isRAW( const DB::FileName& fileName ) { return ImageManager::RAWImageDecoder::isRAW( fileName ); } QImage Utilities::scaleImage(const QImage &image, int w, int h, Qt::AspectRatioMode mode ) { return image.scaled( w, h, mode, Settings::SettingsData::instance()->smoothScale() ? Qt::SmoothTransformation : Qt::FastTransformation ); } QImage Utilities::scaleImage(const QImage &image, const QSize& s, Qt::AspectRatioMode mode ) { return scaleImage( image, s.width(), s.height(), mode ); } QString Utilities::cStringWithEncoding( const char *c_str, const QString& charset ) { QTextCodec* codec = QTextCodec::codecForName( charset.toLatin1() ); if (!codec) codec = QTextCodec::codecForLocale(); return codec->toUnicode( c_str ); } DB::MD5 Utilities::MD5Sum( const DB::FileName& fileName ) { DB::MD5 checksum; QFile file( fileName.absolute() ); if ( file.open( QIODevice::ReadOnly ) ) { QCryptographicHash md5calculator(QCryptographicHash::Md5); if ( md5calculator.addData( &file ) ) { checksum = DB::MD5(QString::fromLatin1(md5calculator.result().toHex())); } else { qWarning() << "Could not compute MD5 sum for file " << fileName.relative(); } } return checksum; } QColor Utilities::contrastColor( const QColor& col ) { if ( col.red() < 127 && col.green() < 127 && col.blue() < 127 ) return Qt::white; else return Qt::black; } void Utilities::saveImage( const DB::FileName& fileName, const QImage& image, const char* format ) { const QFileInfo info(fileName.absolute()); QDir().mkpath(info.path()); const bool ok = image.save(fileName.absolute(),format); Q_ASSERT(ok); Q_UNUSED(ok); } // vi:expandtab:tabstop=4 shiftwidth=4: