rousselmanu/msc_plugins

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rousselmanu Fix missing import command that causes a crash of Musescore for lots … 89980a9

Jun 24, 2017

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rousselmanu

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	import MuseScore 1.0
	import QtQuick 2.0

	MuseScore {

	version: "1.0";
	description: "This demo plugin adds new chords\n\n" +
	"Comments, feedbacks, report bugs, ask for new features, contribute:\n" +
	"https://github.com/rousselmanu/msc_plugins/";
	menuPath: "Plugins.Chords." + qsTr("Add Chord Demo")

	// ---------- remove duplicate notes from chord (notes with same pitch) --------
	function rm_dup(chord){
	var chord_notes=new Array();
	if(chord.pitch != null){
	for(var i=0; i<chord.length; i++)
	chord_notes[i] = chord[i].pitch; // remove octaves
	}else{
	chord_notes=chord;
	}

	chord_notes.sort(function(a, b) { return a - b; }); //sort notes

	var chord_uniq = chord_notes.filter(function(elem, index, self) {
	return index == self.indexOf(elem);
	}); //remove duplicates

	return chord_uniq;
	}

	function rm_octave(chord){
	var chord_notes=new Array();

	if(chord.pitch != null){
	for(var i=0; i<chord.length; i++)
	chord_notes[i] = chord[i].pitch%12; // remove octaves
	}else{
	for(var i=0; i<chord.length; i++)
	chord_notes[i]=chord[i]%12;
	}
	return chord_notes;
	}

	function shift_notes(chord, n){
	var shifted_chord=new Array();
	for(var i=0; i<chord.length; i++)
	shifted_chord[i] = chord[i]+n;
	return shifted_chord;
	}

	// create and return a new Note element with given (midi) pitch, tpc1, tpc2 and headtype
	function createNote(pitch, tpc1, tpc2, head){
	var note = newElement(Element.NOTE);
	note.pitch = pitch;
	var pitch_mod12 = pitch%12;
	var pitch2tpc=[14,21,16,23,18,13,20,15,22,17,24,19]; //get tpc from pitch... yes there is a logic behind these numbers :-p
	if (tpc1){
	note.tpc1 = tpc1;
	note.tpc2 = tpc2;
	}else{
	note.tpc1 = pitch2tpc[pitch_mod12];
	note.tpc2 = pitch2tpc[pitch_mod12];
	}
	if (head) note.headType = head;
	else note.headType = NoteHead.HEAD_AUTO;
	console.log(" created note with tpc: ",note.tpc1," ",note.tpc2," pitch: ",note.pitch);
	return note;
	}

	function setCursorToTime(cursor, time){
	cursor.rewind(0);
	while (cursor.segment) {
	var current_time = cursor.tick;
	if(current_time>=time){
	return true;
	}
	cursor.next();
	}
	cursor.rewind(0);
	return false;
	}

	//adds chord at current position. chord_notes is an array with pitch of notes.
	function addChord(cursor, chord_notes, duration){
	if(chord_notes.length==0) return -1;
	if(chord_notes.length>1) chord_notes=rm_dup(chord_notes);
	var cur_time=cursor.tick;
	cursor.setDuration(1, duration);
	cursor.addNote(chord_notes[0]); //add 1st note
	var next_time=cursor.tick;
	setCursorToTime(cursor, cur_time); //rewind to this note
	var chord = cursor.element; //get the chord created when 1st note was inserted
	for(var i=1; i<chord_notes.length; i++){
	chord.add(createNote(chord_notes[i])); //add notes to the chord
	}
	setCursorToTime(cursor, next_time);
	return 0;
	}

	//note to pitch
	function n2p(note, octave){
	var notenames=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];
	var pitch=notenames.indexOf(note);
	if(pitch==-1) return -1;
	pitch+=12*(octave+1);
	//console.log('pitch: '+pitch);
	return pitch;
	}

	onRun: {
	if (typeof curScore === 'undefined') {
	Qt.quit();
	}

	var cursor = curScore.newCursor(),
	startStaff,
	endStaff,
	endTick,
	fullScore = false;

	cursor.rewind(1);

	if (!cursor.segment) { // no selection
	fullScore = true;
	startStaff = 0; // start with 1st staff
	endStaff = curScore.nstaves - 1; // and end with last
	} else {
	startStaff = cursor.staffIdx;
	cursor.rewind(2);
	if (cursor.tick === 0) {
	// this happens when the selection includes
	// the last measure of the score.
	// rewind(2) goes behind the last segment (where
	// there's none) and sets tick=0
	endTick = curScore.lastSegment.tick + 1;
	} else {
	endTick = cursor.tick;
	}
	endStaff = cursor.staffIdx;
	}
	console.log(startStaff + " - " + endStaff + " - " + endTick);
	console.log('curScore.nstaves: ' + curScore.nstaves);
	console.log('cursor.tick: ' + cursor.tick);
	console.log('curScore.lastSegment.tick: ' + curScore.lastSegment.tick);

	cursor.rewind(1); // beginning of selection
	if (fullScore) { // no selection
	cursor.rewind(0); // beginning of score
	}
	cursor.voice = 0;
	cursor.staffIdx = startStaff; //staff;
	//cursor.track = 0;

	// ------------------ GENERATE CHORDS ----------------
	addChord(cursor, [n2p('D',4)], 2); //add a D4 note
	addChord(cursor, [n2p('D',4), n2p('A',4), n2p('D',5), n2p('F',5)], 4); //add a Dm chord with 2 roots
	addChord(cursor, [n2p('A#',3), n2p('D',4), n2p('G',4)], 4);
	addChord(cursor, [n2p('A',3), n2p('G',4), n2p('C#',5)], 4);
	addChord(cursor, [n2p('D',4), n2p('D',5), n2p('F',4), n2p('A',4)], 2);
	addChord(cursor, [62], 1); //other method to add note: give the pitch

	addChord(cursor, [60, 65, 69, 72, 69], 8); //duplicate note is automatically removed
	addChord(cursor, [60], 8);
	var chord = [60, 64, 67];
	addChord(cursor, shift_notes(chord,5), 8); //shift the chord by 5 semi-tones
	addChord(cursor, chord, 2);
	// ----------------------------------


	Qt.quit();
	} // end onRun
	}

rousselmanu/msc_plugins

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