File indexing completed on 2025-01-19 03:52:36

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2017-07-04
  * Description : Autodetect Tesseract binary program
  *
  * SPDX-FileCopyrightText: 2017-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "tesseractbinary.h"
 
 // Qt includes
 
 #include <QProcess>
 
 // KDE includes
 
 #include <klocalizedstring.h>
 
 // Local includes
 
 #include "digikam_debug.h"
 #include "digikam_config.h"
 #include "digikam_globals.h"
 
 namespace DigikamGenericTextConverterPlugin
 {
 
 TesseractBinary::TesseractBinary(QObject* const)
     : DBinaryIface(
                    QLatin1String("tesseract"),
                    QLatin1String("4.0.0"),
                    QLatin1String("tesseract "),
                    0,
                    QLatin1String("Tesseract OCR"),
                    QLatin1String("https://github.com/tesseract-ocr/tesseract#installing-tesseract"),
                    QLatin1String("TextConverter"),
                    QStringList(QLatin1String("--version")),
                    i18n("Tesseract is an optical character recognition engine for various operating systems.")
                   )
 {
     setup();
 }
 
 TesseractBinary::~TesseractBinary()
 {
 }
 
 QStringList TesseractBinary::tesseractLanguages() const
 {
     /*
      * Output look like this:
      *
      * tesseract --list-langs
      * List of available languages (3):
      * eng
      * fra
      * osd
      */
 
     QStringList langs;
     QProcess process;
     process.setProcessChannelMode(QProcess::MergedChannels);
     process.setProcessEnvironment(adjustedEnvironmentForAppImage());
     process.start(path(), QStringList() << QLatin1String("--list-langs"));
 
     qCDebug(DIGIKAM_GENERAL_LOG) << process.arguments();
 
     bool val = process.waitForFinished();
 
     if (val && (process.error() != QProcess::FailedToStart))
     {
         QString output    = QString::fromUtf8(process.readAllStandardOutput());
 
 #ifdef Q_OS_WIN
 
         QStringList lines = output.split(QLatin1String("\r\n"));
 
 #else
 
         QStringList lines = output.split(QLatin1Char('\n'));
 
 #endif
 
         bool found        = false;
 
         Q_FOREACH (const QString& l, lines)
         {
             qCDebug(DIGIKAM_GENERAL_LOG) << l;
 
             if (!found && l.startsWith(QLatin1String("List of available languages")))
             {
                 found = true;
                 continue;
             }
 
             if (found && !l.isEmpty())
             {
                 langs << l;
             }
         }
     }
 
     qCDebug(DIGIKAM_GENERAL_LOG) << "Tesseract Languages:" << langs;
 
     return langs;
 }
 
 } // namespace DigikamGenericTextConverterPlugin
 
 #include "moc_tesseractbinary.cpp"