forked from openlp/openlp
Make chords.js a bit more readable.
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@ -39,11 +39,12 @@ function storeTransposeValue(songId,transposeValueToSet) {
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}
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}
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function transposeChord(chord, transposeValue, notation) {
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function transposeChord(chord, transposeValue, notation) {
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var chordSplit = chord.replace('♭', 'b').split(/[\/\(\)]/), transposedChord = '', note, notenumber, rest, currentChord,
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var chordSplit = chord.replace('♭', 'b').split(/[\/\(\)]/);
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notesSharp = notesSharpNotation[notation],
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var transposedChord = '', note, notenumber, rest, currentChord;
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notesFlat = notesFlatNotation[notation],
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var notesSharp = notesSharpNotation[notation];
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notesPreferred = ['b','#','#','#','#','#','#','#','#','#','#','#'];
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var notesFlat = notesFlatNotation[notation];
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chordNotes = Array();
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var notesPreferred = ['b','#','#','#','#','#','#','#','#','#','#','#'];
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var chordNotes = Array();
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for (i = 0; i <= chordSplit.length - 1; i++) {
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for (i = 0; i <= chordSplit.length - 1; i++) {
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if (i > 0) {
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if (i > 0) {
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transposedChord += '/';
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transposedChord += '/';
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@ -72,16 +73,23 @@ function transposeChord(chord, transposeValue, notation) {
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}
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}
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notenumber = (notesSharp.indexOf(note) === -1 ? notesFlat.indexOf(note) : notesSharp.indexOf(note));
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notenumber = (notesSharp.indexOf(note) === -1 ? notesFlat.indexOf(note) : notesSharp.indexOf(note));
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notenumber -= parseInt(transposeValue);
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notenumber -= parseInt(transposeValue);
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while (notenumber > 11) {notenumber -= 12;}
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while (notenumber > 11) {
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while (notenumber < 0) {notenumber += 12;}
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notenumber -= 12;
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}
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while (notenumber < 0) {
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notenumber += 12;
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}
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if (i === 0) {
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if (i === 0) {
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currentChord = notesPreferred[notenumber] === '#' ? notesSharp[notenumber] : notesFlat[notenumber];
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currentChord = notesPreferred[notenumber] === '#' ? notesSharp[notenumber] : notesFlat[notenumber];
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lastChord = currentChord;
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lastChord = currentChord;
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} else {
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} else {
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currentChord = notesSharp.indexOf(lastChord) === -1 ? notesFlat[notenumber] : notesSharp[notenumber];
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currentChord = notesSharp.indexOf(lastChord) === -1 ? notesFlat[notenumber] : notesSharp[notenumber];
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}
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}
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if(!(notesFlat.indexOf(note)===-1 && notesSharp.indexOf(note)===-1)) transposedChord += currentChord + rest; else transposedChord += note + rest; //note+rest;
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if (!(notesFlat.indexOf(note) === -1 && notesSharp.indexOf(note) === -1)) {
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//transposedChord += currentChord + rest;
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transposedChord += currentChord + rest;
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} else {
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transposedChord += note + rest;
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}
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}
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}
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}
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}
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return transposedChord;
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return transposedChord;
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