Text highlight tools basics

PdfForQtLib/sources/pdfadvancedtools.h

@@ -261,6 +261,54 @@ private:
     PDFStampAnnotation m_stampAnnotation;
 };
 
+/// Tool for highlighting of text in document
+class PDFFORQTLIBSHARED_EXPORT PDFCreateHighlightTextTool : public PDFCreateAnnotationTool
+{
+    Q_OBJECT
+
+private:
+    using BaseClass = PDFCreateAnnotationTool;
+
+public:
+
+    /// Creates new highlight text tool
+    /// \param proxy Proxy
+    /// \param type Annotation type, must be one of: Highlight, Underline, Squiggly, StrikeOut
+    /// \param action Action
+    /// \param parent Parent
+    explicit PDFCreateHighlightTextTool(PDFDrawWidgetProxy* proxy, PDFToolManager* toolManager, AnnotationType type, QAction* action, QObject* parent);
+
+    virtual void drawPage(QPainter* painter,
+                          PDFInteger pageIndex,
+                          const PDFPrecompiledPage* compiledPage,
+                          PDFTextLayoutGetter& layoutGetter,
+                          const QMatrix& pagePointToDevicePointMatrix,
+                          QList<PDFRenderError>& errors) const override;
+
+    virtual void mousePressEvent(QWidget* widget, QMouseEvent* event) override;
+    virtual void mouseReleaseEvent(QWidget* widget, QMouseEvent* event) override;
+    virtual void mouseMoveEvent(QWidget* widget, QMouseEvent* event) override;
+
+protected:
+    virtual void setActiveImpl(bool active) override;
+
+private:
+    void updateCursor();
+    void setSelection(pdf::PDFTextSelection&& textSelection);
+
+    struct SelectionInfo
+    {
+        PDFInteger pageIndex = -1;
+        QPointF selectionStartPoint;
+    };
+
+    PDFToolManager* m_toolManager;
+    AnnotationType m_type;
+    pdf::PDFTextSelection m_textSelection;
+    SelectionInfo m_selectionInfo;
+    bool m_isCursorOverText;
+};
+
 } // namespace pdf
 
 #endif // PDFADVANCEDTOOLS_H