AudioBook Plugin: Initial commit, document text flow adjustments

Pdf4QtViewerPlugins/AudioBookPlugin/audiobookplugin.h

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+//    Copyright (C) 2021 Jakub Melka
+//
+//    This file is part of PDF4QT.
+//
+//    PDF4QT 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
+//    with the written consent of the copyright owner, any later version.
+//
+//    PDF4QT 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 PDF4QT.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef AUDIOBOOKPLUGIN_H
+#define AUDIOBOOKPLUGIN_H
+
+#include "pdfplugin.h"
+#include "pdfdocumenttextflow.h"
+
+#include <QObject>
+
+namespace pdfplugin
+{
+
+class AudioBookPlugin : public pdf::PDFPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "PDF4QT.AudioBookPlugin" FILE "AudioBookPlugin.json")
+
+private:
+    using BaseClass = pdf::PDFPlugin;
+
+public:
+    AudioBookPlugin();
+
+    virtual void setWidget(pdf::PDFWidget* widget) override;
+    virtual void setDocument(const pdf::PDFModifiedDocument& document) override;
+    virtual std::vector<QAction*> getActions() const override;
+
+private:
+    void onCreateTextStreamTriggered();
+
+    void updateActions();
+
+    QAction* m_createTextStreamAction;
+
+    pdf::PDFDocumentTextFlowEditor m_textFlowEditor;
+};
+
+}   // namespace pdfplugin
+
+#endif // AUDIOBOOKPLUGIN_H