add of setbold, setItalic, setUnderlined and setFontColor functions

mainwindow.h

@@ -26,6 +26,10 @@ public:
     void addNewPath();
     void addNewStep();
     void exportHTMLMap();
+    void setBold();
+    void setItalic();
+    void setUnderline();
+    void setColor();
 
 private slots:
     void on_pushButton_clicked();
@@ -43,6 +47,14 @@ private slots:
 
     void on_actionEditCut_triggered();
 
+    void on_actionBold_triggered();
+
+    void on_actionItalic_triggered();
+
+    void on_actionUnderline_triggered();
+
+    void on_actionColor_triggered();
+
 private:
     Ui::MainWindow *ui;
     QString currentFile;