mirror of https://github.com/JakubMelka/PDF4QT.git
132 lines
4.7 KiB
C++
132 lines
4.7 KiB
C++
// Copyright (C) 2020-2021 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#include "pdftoolfetchtext.h"
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#include "pdfdocumenttextflow.h"
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namespace pdftool
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{
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static PDFToolFetchTextApplication s_fetchTextApplication;
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QString PDFToolFetchTextApplication::getStandardString(PDFToolAbstractApplication::StandardString standardString) const
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{
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switch (standardString)
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{
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case Command:
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return "fetch-text";
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case Name:
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return PDFToolTranslationContext::tr("Fetch text");
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case Description:
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return PDFToolTranslationContext::tr("Fetch text content from document.");
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default:
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Q_ASSERT(false);
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break;
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}
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return QString();
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}
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int PDFToolFetchTextApplication::execute(const PDFToolOptions& options)
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{
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pdf::PDFDocument document;
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QByteArray sourceData;
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if (!readDocument(options, document, &sourceData, false))
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{
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return ErrorDocumentReading;
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}
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if (!document.getStorage().getSecurityHandler()->isAllowed(pdf::PDFSecurityHandler::Permission::CopyContent))
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{
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PDFConsole::writeError(PDFToolTranslationContext::tr("Document doesn't allow to copy content."), options.outputCodec);
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return ErrorPermissions;
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}
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QString parseError;
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std::vector<pdf::PDFInteger> pages = options.getPageRange(document.getCatalog()->getPageCount(), parseError, true);
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if (!parseError.isEmpty())
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{
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PDFConsole::writeError(parseError, options.outputCodec);
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return ErrorInvalidArguments;
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}
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pdf::PDFDocumentTextFlowFactory factory;
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pdf::PDFDocumentTextFlow documentTextFlow = factory.create(&document, pages, options.textAnalysisAlgorithm);
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PDFOutputFormatter formatter(options.outputStyle);
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formatter.beginDocument("text-extraction", QString());
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formatter.endl();
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for (const pdf::PDFDocumentTextFlow::Item& item : documentTextFlow.getItems())
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{
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if (item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureItemStart))
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{
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formatter.beginHeader("item", item.text);
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}
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if (!item.text.isEmpty())
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{
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bool showText = (item.flags.testFlag(pdf::PDFDocumentTextFlow::Text)) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::PageStart) && options.textShowPageNumbers) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::PageEnd) && options.textShowPageNumbers) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureTitle) && options.textShowStructTitles) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureLanguage) && options.textShowStructLanguage) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureAlternativeDescription) && options.textShowStructAlternativeDescription) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureExpandedForm) && options.textShowStructExpandedForm) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureActualText) && options.textShowStructActualText) ||
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(item.flags.testFlag(pdf::PDFDocumentTextFlow::StructurePhoneme) && options.textShowStructPhoneme);
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if (showText)
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{
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formatter.writeText("text", item.text);
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}
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}
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if (item.flags.testFlag(pdf::PDFDocumentTextFlow::StructureItemEnd))
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{
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formatter.endHeader();
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}
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if (item.flags.testFlag(pdf::PDFDocumentTextFlow::PageEnd))
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{
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formatter.endl();
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}
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}
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formatter.endDocument();
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for (const pdf::PDFRenderError& error : factory.getErrors())
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{
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PDFConsole::writeError(error.message, options.outputCodec);
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}
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PDFConsole::writeText(formatter.getString(), options.outputCodec);
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return ExitSuccess;
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}
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PDFToolAbstractApplication::Options PDFToolFetchTextApplication::getOptionsFlags() const
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{
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return ConsoleFormat | OpenDocument | PageSelector | TextAnalysis | TextShow;
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}
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} // namespace pdftool
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