File indexing completed on 2025-01-05 05:23:53

 /*
     This file is part of the Okteta Kasten module, made within the KDE community.
 
     SPDX-FileCopyrightText: 2023 Friedrich W. H. Kossebau <kossebau@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
 #include "bytearrayrowscolumnhtmlrenderer.hpp"
 
 // Okteta core
 #include <Okteta/ValueCodec>
 #include <Okteta/CharCodec>
 #include <Okteta/Character>
 #include <Okteta/AbstractByteArrayModel>
 // Qt
 #include <QTextStream>
 
 namespace Kasten {
 
 ByteArrayRowsColumnHtmlRenderer::ByteArrayRowsColumnHtmlRenderer(const Okteta::AbstractByteArrayModel* byteArrayModel,
                                                                  Okteta::Address offset,
                                                                  const Okteta::CoordRange& coordRange,
                                                                  int noOfBytesPerLine, int noOfGroupedBytes,
                                                                  int visibleCodings,
                                                                  Okteta::ValueCoding valueCoding,
                                                                  const QString& charCodecName, QChar substituteChar, QChar undefinedChar)
     : mByteArrayModel(byteArrayModel)
     , mCoordRange(coordRange)
     , mNoOfBytesPerLine(noOfBytesPerLine)
     , mVisibleCodings(visibleCodings)
     , mValueCodec(Okteta::ValueCodec::createCodec(valueCoding))
     , mCharCodec(Okteta::CharCodec::createCodec(charCodecName))
     , mSubstituteChar(substituteChar)
     , mUndefinedChar(undefinedChar)
     , mOffset(offset)
 {
     Q_UNUSED(noOfGroupedBytes);
 }
 
 ByteArrayRowsColumnHtmlRenderer::~ByteArrayRowsColumnHtmlRenderer() = default;
 
 int ByteArrayRowsColumnHtmlRenderer::noOfSublinesNeeded() const
 {
     return (mVisibleCodings > 2) ? 2 : 1;
 }
 
 void ByteArrayRowsColumnHtmlRenderer::renderFirstLine(QTextStream* stream, int lineIndex) const
 {
     mRenderLine = lineIndex;
     renderLine(stream, false);
 }
 
 void ByteArrayRowsColumnHtmlRenderer::renderNextLine(QTextStream* stream, bool isSubline) const
 {
     renderLine(stream, isSubline);
 }
 
 void ByteArrayRowsColumnHtmlRenderer::renderLine(QTextStream* stream, bool isSubline) const
 {
     const int lineOffset = mOffset;
 
     int p = 0;
     int pEnd = mNoOfBytesPerLine;
     // correct boundaries
     if (mRenderLine == mCoordRange.start().line()) {
         p = mCoordRange.start().pos();
     }
     if (mRenderLine == mCoordRange.end().line()) {
         pEnd = mCoordRange.end().pos() + 1;
     }
     const bool needsFilledEmptyCells =
         (mCoordRange.lines() == 1) ? ((0 < p) || (pEnd < mNoOfBytesPerLine)) :
         (mCoordRange.lines() == 2) ? (mCoordRange.end().pos() + 1 < mCoordRange.start().pos() ) :
         /* eefault */                false;
     const unsigned int codingWidth = needsFilledEmptyCells ? mValueCodec->encodingWidth() : 0;
 
     *stream << emptyCells(p, codingWidth);
 
     if (isSubline || mVisibleCodings == 2) {
         const QChar tabChar = QLatin1Char('\t');
         const QChar returnChar = QLatin1Char('\n');
 
         // render individual chars
         for (; p < pEnd; ++p, ++mOffset) {
             const Okteta::Character byteChar = mCharCodec->decode(mByteArrayModel->byte(mOffset));
 
             const QChar streamChar = byteChar.isUndefined() ?      Okteta::Character(mUndefinedChar) :
                                      (!byteChar.isPrint()
                                       || byteChar == tabChar
                                       || byteChar == returnChar) ? Okteta::Character(mSubstituteChar) :
                                                                    byteChar;
             *stream << "<td><tt>" << htmlEscaped(streamChar) << "</tt></td>";
         }
     } else {
         QString E;
         E.resize(mValueCodec->encodingWidth());
         // render individual values
         for (; p < pEnd; ++p, ++mOffset) {
             mValueCodec->encode(&E, 0, mByteArrayModel->byte(mOffset));
             *stream << "<td><tt>" << E.toHtmlEscaped() << "</tt></td>";
         }
     }
 
     *stream << emptyCells(mNoOfBytesPerLine - p, codingWidth);
 
     if (isSubline || mVisibleCodings < 3) {
         ++mRenderLine;
     } else {
         mOffset = lineOffset;
     }
 }
 
 }