Parsing X Reference table

PdfForQtViewer/pdfviewermainwindow.h

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+#ifndef PDFVIEWERMAINWINDOW_H
+#define PDFVIEWERMAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Ui
+{
+class PDFViewerMainWindow;
+}
+
+namespace pdfviewer
+{
+
+class PDFViewerMainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit PDFViewerMainWindow(QWidget *parent = nullptr);
+    virtual ~PDFViewerMainWindow() override;
+
+private:
+    void onActionOpenTriggered();
+
+    Ui::PDFViewerMainWindow* ui;
+};
+
+}   // namespace pdfviewer
+
+#endif // PDFVIEWERMAINWINDOW_H