Tool for fetching text (basics)

PdfTool/pdftoolfetchtext.cpp

@@ -0,0 +1,81 @@
+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt 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 Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdftoolfetchtext.h"
+#include "pdfdocumenttextflow.h"
+
+namespace pdftool
+{
+
+static PDFToolFetchTextApplication s_fetchTextApplication;
+
+QString PDFToolFetchTextApplication::getStandardString(PDFToolAbstractApplication::StandardString standardString) const
+{
+    switch (standardString)
+    {
+        case Command:
+            return "fetch-text";
+
+        case Name:
+            return PDFToolTranslationContext::tr("Fetch text");
+
+        case Description:
+            return PDFToolTranslationContext::tr("Fetch text content from a document.");
+
+        default:
+            Q_ASSERT(false);
+            break;
+    }
+
+    return QString();
+}
+
+int PDFToolFetchTextApplication::execute(const PDFToolOptions& options)
+{
+    pdf::PDFDocument document;
+    QByteArray sourceData;
+    if (!readDocument(options, document, &sourceData))
+    {
+        return ErrorDocumentReading;
+    }
+
+    QString parseError;
+    std::vector<pdf::PDFInteger> pages = options.getPageRange(document.getCatalog()->getPageCount(), parseError, true);
+
+    if (!parseError.isEmpty())
+    {
+        PDFConsole::writeError(parseError, options.outputCodec);
+        return ErrorInvalidArguments;
+    }
+
+    pdf::PDFDocumentTextFlowFactory factory;
+    pdf::PDFDocumentTextFlow documentTextFlow = factory.create(&document, pages, options.textAnalysisAlgorithm);
+
+    for (const pdf::PDFRenderError& error : factory.getErrors())
+    {
+        PDFConsole::writeError(error.message, options.outputCodec);
+    }
+
+    return ExitSuccess;
+}
+
+PDFToolAbstractApplication::Options PDFToolFetchTextApplication::getOptionsFlags() const
+{
+    return ConsoleFormat | OpenDocument | TextAnalysis;
+}
+
+}   // namespace pdftool