File indexing completed on 2024-05-12 04:33:57

 // -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
 // fontEncoding.cpp
 //
 // Part of KDVI - A DVI previewer for the KDE desktop environment
 //
 // SPDX-FileCopyrightText: 2003 Stefan Kebekus
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <config.h>
 
 #ifdef HAVE_FREETYPE
 
 #include "debug_dvi.h"
 #include "fontEncoding.h"
 
 #include <QFile>
 #include <QLoggingCategory>
 #include <QProcess>
 #include <QStandardPaths>
 #include <QTextStream>
 
 //#define DEBUG_FONTENC
 
 fontEncoding::fontEncoding(const QString &encName)
 {
 #ifdef DEBUG_FONTENC
     qCDebug(OkularDviDebug) << "fontEncoding( " << encName << " )";
 #endif
 
     _isValid = false;
     // Use kpsewhich to find the encoding file.
     QProcess kpsewhich;
     kpsewhich.setProcessChannelMode(QProcess::MergedChannels);
 
     // Make sure kpsewhich is in PATH and not just in the CWD
     static const QString fullPath = QStandardPaths::findExecutable(QStringLiteral("kpsewhich"));
     if (fullPath.isEmpty()) {
         qCCritical(OkularDviDebug) << "fontEncoding::fontEncoding(...): kpsewhich is not in path.";
         return;
     }
 
     kpsewhich.start(fullPath, QStringList() << encName, QIODevice::ReadOnly | QIODevice::Text);
 
     if (!kpsewhich.waitForStarted()) {
         qCCritical(OkularDviDebug) << "fontEncoding::fontEncoding(...): kpsewhich could not be started.";
         return;
     }
 
     // We wait here while the external program runs concurrently.
     kpsewhich.waitForFinished(-1);
 
     const QString encFileName = QString::fromLocal8Bit(kpsewhich.readAll()).trimmed();
     if (encFileName.isEmpty()) {
         qCCritical(OkularDviDebug) << QStringLiteral("fontEncoding::fontEncoding(...): The file '%1' could not be found by kpsewhich.").arg(encName);
         return;
     }
 
 #ifdef DEBUG_FONTENC
     qCDebug(OkularDviDebug) << "FileName of the encoding: " << encFileName;
 #endif
 
     QFile file(encFileName);
     if (file.open(QIODevice::ReadOnly)) {
         // Read the file (excluding comments) into the QString variable
         // 'fileContent'
         QTextStream stream(&file);
         QString fileContent;
         while (!stream.atEnd()) {
             fileContent += stream.readLine().section(QLatin1Char('%'), 0, 0); // line of text excluding '\n' until first '%'-sign
         }
         file.close();
 
         fileContent = fileContent.trimmed();
 
         // Find the name of the encoding
         encodingFullName = fileContent.section(QLatin1Char('['), 0, 0).simplified().mid(1);
 #ifdef DEBUG_FONTENC
         qCDebug(OkularDviDebug) << "encodingFullName: " << encodingFullName;
 #endif
 
         fileContent = fileContent.section(QLatin1Char('['), 1, 1).section(QLatin1Char(']'), 0, 0).simplified();
         const QStringList glyphNameList = fileContent.split(QLatin1Char('/'), Qt::SkipEmptyParts);
 
         int i = 0;
         for (QStringList::ConstIterator it = glyphNameList.constBegin(); (it != glyphNameList.constEnd()) && (i < 256); ++it) {
             glyphNameVector[i] = (*it).simplified();
 #ifdef DEBUG_FONTENC
             qCDebug(OkularDviDebug) << i << ": " << glyphNameVector[i];
 #endif
             i++;
         }
         for (; i < 256; i++) {
             glyphNameVector[i] = QStringLiteral(".notdef");
         }
     } else {
         qCCritical(OkularDviDebug) << QStringLiteral("fontEncoding::fontEncoding(...): The file '%1' could not be opened.").arg(encFileName);
         return;
     }
 
     _isValid = true;
 }
 
 #endif // HAVE_FREETYPE