Advanced find (algorithms)

PdfForQtViewer/pdfadvancedfindwidget.h

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+//    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/>.
+
+#ifndef PDFADVANCEDFINDWIDGET_H
+#define PDFADVANCEDFINDWIDGET_H
+
+#include "pdfglobal.h"
+
+#include <QWidget>
+
+namespace Ui
+{
+class PDFAdvancedFindWidget;
+}
+
+namespace pdf
+{
+class PDFDocument;
+class PDFDrawWidgetProxy;
+}
+
+namespace pdfviewer
+{
+
+class PDFAdvancedFindWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit PDFAdvancedFindWidget(pdf::PDFDrawWidgetProxy* proxy, QWidget* parent = nullptr);
+    virtual ~PDFAdvancedFindWidget() override;
+
+    void setDocument(const pdf::PDFDocument* document);
+
+private slots:
+    void on_searchButton_clicked();
+
+private:
+    void updateUI();
+    void performSearch();
+
+    struct SearchParameters
+    {
+        QString phrase;
+        bool isCaseSensitive = false;
+        bool isWholeWordsOnly = false;
+        bool isRegularExpression = false;
+        bool isDotMatchingEverything = false;
+        bool isMultiline = false;
+        bool isSearchFinished = false;
+    };
+
+    Ui::PDFAdvancedFindWidget* ui;
+
+    pdf::PDFDrawWidgetProxy* m_proxy;
+    const pdf::PDFDocument* m_document;
+    SearchParameters m_parameters;
+};
+
+}   // namespace pdfviewer
+
+#endif // PDFADVANCEDFINDWIDGET_H