Copy Below.qml

/*========================================================================
  Move Selection                                         
  https://github.com/Ash-86/Move-Selection                    
                                                                        
  Copyright (C)2023 Ashraf El Droubi (Ash-86)                           
                                                                        
  This program is free software: you can redistribute it and/or modify  
  it under the terms of the GNU General Public License as published by  
  the Free Software Foundation, either version 3 of the License, or     
  (at your option) any later version.                                   
                                                                        
  This program 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 General Public License for more details.                          
                                                                        
  You should have received a copy of the GNU General Public License     
  along with this program.  If not, see <http://www.gnu.org/licenses/>. 
=========================================================================*/

import QtQuick 2.0
import MuseScore 3.0

MuseScore {
	menuPath: "Plugins.Move/Duplicate Selection.Duplicate to Staff Below"
	description: "Duplicates selection to the staff below."
	version: "1.0"
    
	//4.4 title: "Duplicate to Staff Below"
	//4.4 thumbnailName: "do.png"
	//4.4 categoryCode: "composing-arranging-tools"

	Component.onCompleted : {
        if (mscoreMajorVersion >= 4) {
            title= "Duplicate to Staff Below"
            thumbnailName = "do.png"
            categoryCode = "composing-arranging-tools"
        }
    }	  


    onRun: {
		///// get start and end tics,staff,and track, for selection 
		var cursor = curScore.newCursor(); 			
		//end
		cursor.rewind(2); // go to the end of the selection
		var endTick = cursor.tick;
		// if (endTick == 0) { // dealing with some bug when selecting to end.
   		// 	var endTick = score.lastSegment.tick + 1;
		// }
		var endStaff = cursor.staffIdx +1;
        var endTrack = endStaff * 4;
		//start		
		cursor.rewind(1); // go to the beginning of the selection
		// var startSegTick= cursor.segment.tick
		var startSegTick= curScore.selection.startSegment.tick;
		var startTick = cursor.tick;
		var startStaff = cursor.staffIdx;
		var startTrack = startStaff * 4;
		///////////////////////////////////////////////////////////////
		if (endStaff==curScore.nstaves){
			return
		}else{


			curScore.startCmd();

			cmd("copy");						
			
			////////////////////////////////
			var stavesN= endStaff - startStaff
			cursor.track=startTrack+stavesN*4; //// set cursor to staff above
			cursor.rewindToTick(startSegTick); // go back to beginning of selection
					
			/////// In case the startTick at lower staff falls within the space of an element, 
			/////// (cursor.tick in this case returns tick of next element)
			//////// navigate to previous element and addRest until element tick coincides with startTick. 			
							
			if (cursor.tick > startSegTick){	/// it seems empty measure have to have special condition to prepare measure
				cursor.prev();
				cursor.setDuration(1, 4);
				cursor.addRest();					
				cursor.rewindToTick(startSegTick);	
			}

			while(cursor.tick > startSegTick){	
				cursor.prev();
				var n=cursor.element.duration.numerator;
				var d=cursor.element.duration.denominator;					
				cursor.setDuration(n, d*2);
				cursor.addRest();					
				cursor.rewindToTick(startSegTick);			
			}	
		
			///////////////////////////////////////////////

			if (cursor.element.type==Element.CHORD){
				curScore.selection.select(cursor.element.notes[0])
			}else {
				curScore.selection.select(cursor.element)
			}

			cmd("paste");			
			
			curScore.endCmd()
			 
		}///end else
	}///end onRun
}