added jump to block feature.

src/musredit_qt6/musredit/PTextEdit.h

@@ -86,6 +86,7 @@ private:
   void setupTextActions();
   void setupMusrActions();
   void setupHelpActions();
+  void setupJumpToBlock();
   void load( const QString &f, const int index=-1 );
   PSubTextEdit *currentEditor() const;
   void doConnections( PSubTextEdit *e );
@@ -167,6 +168,8 @@ private slots:
   void fileChanged(const QString &fileName);
   void setFileSystemWatcherActive();
 
+  void jumpToBlock(int idx);
+
 private:
   bool fDarkMenuIcon; ///< flag indicating if a dark or plain icon shall be used in the menu pull-downs
   bool fDarkToolBarIcon; ///< flag indicating if a dark or plain icon shall be used in the toolbar
@@ -187,6 +190,7 @@ private:
   std::unique_ptr<QComboBox> fComboFont; ///< combo box for the font selector
   std::unique_ptr<QComboBox> fComboSize; ///< combo box for the font size
   bool fFontChanging; ///< flag needed to prevent some textChanged feature to occure when only the font changed
+  std::unique_ptr<QComboBox> fJumpToBlock; ///< combo box used to jump to the msr-file blocks
 
   std::unique_ptr<QTabWidget> fTabWidget; ///< tab widget in which the text editor(s) are placed
   QMap<PSubTextEdit*, QString> fFilenames; ///< mapper between tab widget object and filename