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| /* | ||
| A collection of functions and constants for iterating over a score. | ||
| Copyright (C) 2024 Alessandro Culatti | ||
| 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 <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| const VERSION = "1.0.0"; | ||
|
|
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| const ELEMENT_STAFF_TEXT = 48; | ||
|
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| function iterate(curScore, actions, logger) | ||
| { | ||
| let onStaffStart = actions.onStaffStart || null; | ||
| let onNewMeasure = actions.onNewMeasure || null; | ||
| let onKeySignatureChange = actions.onKeySignatureChange || null; | ||
| let onAnnotation = actions.onAnnotation || null; | ||
| let staffTextOnCurrentStaffOnly = actions.staffTextOnCurrentStaffOnly || true; | ||
| let onNote = actions.onNote || null; | ||
|
|
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| curScore.startCmd(); | ||
| let cursor = curScore.newCursor(); | ||
|
|
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| // Calculate the portion of the score to iterate on. | ||
| let startStaff; | ||
| let endStaff; | ||
| let startTick; | ||
| let endTick; | ||
| cursor.rewind(Cursor.SELECTION_START); | ||
| if (!cursor.segment) | ||
| { | ||
| logger.log("Tuning the entire score."); | ||
| startStaff = 0; | ||
| endStaff = curScore.nstaves - 1; | ||
| startTick = 0; | ||
| endTick = curScore.lastSegment.tick; | ||
| } | ||
| else | ||
| { | ||
| logger.log("Tuning only the current selection."); | ||
| startStaff = cursor.staffIdx; | ||
| startTick = cursor.tick; | ||
| cursor.rewind(Cursor.SELECTION_END); | ||
| endStaff = cursor.staffIdx; | ||
| if (cursor.tick == 0) | ||
| { | ||
| // If the selection includes the last note of the score, .rewind() | ||
| // overflows and goes back to tick 0. | ||
| endTick = curScore.lastSegment.tick; | ||
| } | ||
| else | ||
| { | ||
| endTick = cursor.tick; | ||
| } | ||
| logger.trace("Tuning only ticks: " + startTick + " - " + endTick); | ||
| logger.trace("Tuning only staffs: " + startStaff + " - " + endStaff); | ||
| } | ||
|
|
||
| // Iterate on the score. | ||
| for (let staff = startStaff; staff <= endStaff; staff++) | ||
| { | ||
| for (let voice = 0; voice < 4; voice++) | ||
| { | ||
| logger.log("Tuning Staff: " + staff + "; Voice: " + voice); | ||
|
|
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| cursor.voice = voice; | ||
| cursor.staffIdx = staff; | ||
| cursor.rewindToTick(startTick); | ||
|
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| let previousKeySignature = cursor.keySignature; | ||
|
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| if (onStaffStart) | ||
| { | ||
| onStaffStart(); | ||
| } | ||
|
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| // Loop on the element of the current staff. | ||
| while (cursor.segment && (cursor.tick <= endTick)) | ||
| { | ||
| if (cursor.segment.tick == cursor.measure.firstSegment.tick) | ||
| { | ||
| if (onNewMeasure) | ||
| { | ||
| onNewMeasure(); | ||
| } | ||
| } | ||
|
|
||
| if (cursor.keySignature != previousKeySignature) | ||
| { | ||
| if (onKeySignatureChange) | ||
| { | ||
| onKeySignatureChange(cursor.keySignature); | ||
| } | ||
| previousKeySignature = cursor.keySignature; | ||
| } | ||
|
|
||
| for (let i = 0; i < cursor.segment.annotations.length; i++) | ||
| { | ||
| let annotation = cursor.segment.annotations[i]; | ||
| let annotationText = annotation.text; | ||
| if (annotationText) | ||
| { | ||
| if (onAnnotation) | ||
| { | ||
| if ((annotation.type === ELEMENT_STAFF_TEXT) && staffTextOnCurrentStaffOnly) | ||
| { | ||
| let annotationPart = annotation.staff.part; | ||
| if ((4 * staff >= annotationPart.startTrack) && (4 * staff < annotationPart.endTrack)) | ||
| { | ||
| onAnnotation(annotation); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| onAnnotation(annotation); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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||
| if (cursor.element && (cursor.element.type == Element.CHORD)) | ||
| { | ||
| let graceChords = cursor.element.graceNotes; | ||
| for (let i = 0; i < graceChords.length; i++) | ||
| { | ||
| let notes = graceChords[i].notes; | ||
| for (let j = 0; j < notes.length; j++) | ||
| { | ||
| if (onNote) | ||
| { | ||
| onNote(notes[j]); | ||
| } | ||
| } | ||
| } | ||
|
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| let notes = cursor.element.notes; | ||
| for (let i = 0; i < notes.length; i++) | ||
| { | ||
| if (onNote) | ||
| { | ||
| onNote(notes[i]); | ||
| } | ||
| } | ||
| } | ||
|
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| cursor.next(); | ||
| } | ||
| } | ||
| } | ||
|
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| curScore.endCmd(); | ||
| } |