MuseScore plugin - QtScript snippets

list_properties.js

// list properties on an object - poor man's reflection
for (var prop in curScore) {
  console.log(prop)
}

//// properties of Ms:Score:
// addText
// appendMeasures
// appendPart
// composer
// cropPage
// doLayout
// duration
// endCmd
// endCmd
// excerpts
// extractLyrics
// firstMeasure
// firstMeasureMM
// firstSegment
// firstSegment
// harmonyCount
// hasHarmonies
// hasLyrics
// keysig
// lastMeasure
// lastMeasureMM
// lastSegment
// lyricCount
// metaTag
// name
// newCursor
// nmeasures
// npages
// nstaves
// ntracks
// objectName
// objectNameChanged
// pageFormat
// parts
// playlistChanged
// poet
// posChanged
// setMetaTag
// startCmd
// subtitle
// title
// updateRepeatList


// docs: https://musescore.org/en/plugin-development/score-object (outdated)
// https://github.com/musescore/MuseScore/blob/master/libmscore/score.h
// properties of a C++ class visible from QtScript are marked with Q_PROPERTY or Q_INVOKABLE
// https://stackoverflow.com/questions/5547692/qtscript-introspection-reflection

loadMusicXmlViaHttpRequest.qml

// Loads a MusicXML file via an HTTP request and opens it as a new score.
//
// You can generate a random score and save it as random.xml
//
// The backend this XML file can be as easy as:
//
// $ python -m http.server
//
// You can test if it works with:
//
// $ curl http://localhost:8000/random.xml

import QtQuick 2.0
import MuseScore 1.0
import FileIO 1.0

MuseScore {
  menuPath: "Plugins.loadMidiViaAjax"
  FileIO {
    id: loadedFile
    source: tempPath() + "/loadedScore.xml"
    onError: console.log(msg)
  }
  onRun: {
    var request = new XMLHttpRequest()
    request.open("GET", "http://localhost:8000/random.xml", /*async*/ true)
    request.onreadystatechange = function() {
        if (request.readyState == XMLHttpRequest.DONE) {
          loadedFile.write(request.responseText)
          readScore(loadedFile.source, "xml")
        }
    }
    request.send()
    Qt.quit();
  }
}

print_score_as_music_xml.qml

import QtQuick 2.0
import MuseScore 1.0
import FileIO 1.0

MuseScore {
  menuPath: "Plugins.printMusicXml"
  FileIO {
    id: scoreFile
    source: tempPath() + "/score.xml"
    onError: console.log(msg)
  }
  onRun: {
    writeScore(curScore, scoreFile.source, "xml")
    var scoreXml = scoreFile.read()
    console.log(scoreXml)
    Qt.quit()
    }
}

read_write_score.js

writeScore(curScore, "/tmp/foo.xml", "xml")
readScore("/tmp/foo.xml", "xml")