def show(self, obj, fmt, app=None, subformats=None, **keywords):
'''
show using the appropriate subformat.
'''
if subformats is None:
subformats = ['vexflow']
if len(subformats) > 0 and subformats[0] == 'vexflow':
return self.vfshow(obj)
#subformats = ['lilypond','png']
helperFormat = subformats[0]
helperSubformats = subformats[1:]
from music21 import converter
helperConverter = converter.Converter()
helperConverter.setSubconverterFromFormat(helperFormat)
helperSubConverter = helperConverter.subConverter
### hack to make musescore excerpts -- fix with a converter class in MusicXML
savedDefaultTitle = defaults.title
savedDefaultAuthor = defaults.author
defaults.title = ''
defaults.author = ''
if 'Opus' not in obj.classes:
fp = helperSubConverter.write(obj,
helperFormat,
subformats=helperSubformats)
defaults.title = savedDefaultTitle
defaults.author = savedDefaultAuthor
if helperSubformats[0] == 'png':
from music21.ipython21 import objects as ipythonObjects
ipo = ipythonObjects.IPythonPNGObject(fp)
return ipo
else:
from IPython.display import Image, display # @UnresolvedImport
for s in obj.scores:
fp = helperSubConverter.write(s,
helperFormat,
subformats=helperSubformats)
if helperSubformats[0] == 'png':
from music21.ipython21 import objects as ipythonObjects # @Reimport
ipo = ipythonObjects.IPythonPNGObject(fp)
display(Image(filename=ipo.fp, retina=True))
defaults.title = savedDefaultTitle
defaults.author = savedDefaultAuthor
return None
def write(self, obj, fmt, fp=None, subformats=None, **keywords):
from music21 import lily
conv = lily.translate.LilypondConverter()
if 'coloredVariants' in keywords and keywords[
'coloredVariants'] is True:
conv.coloredVariants = True
if subformats is not None and 'pdf' in subformats:
conv.loadFromMusic21Object(obj)
convertedFilePath = conv.createPDF(fp)
return convertedFilePath
elif subformats is not None and 'png' in subformats:
conv.loadFromMusic21Object(obj)
convertedFilePath = conv.createPNG(fp)
if 'ipython' in subformats:
from music21.ipython21 import objects as ipythonObjects
ipo = ipythonObjects.IPythonPNGObject(convertedFilePath)
return ipo
else:
return convertedFilePath
elif subformats is not None and 'svg' in subformats:
conv.loadFromMusic21Object(obj)
convertedFilePath = conv.createSVG(fp)
return convertedFilePath
else:
conv.loadFromMusic21Object(obj)
convertedFilePath = conv.writeLyFile(ext='.ly', fp=fp)
return convertedFilePath
def create_png_from_stream(stream, filename):
helperFormat = 'musicxml'
helperSubformats = ['png']
helperConverter = converter.Converter()
helperConverter.setSubconverterFromFormat(helperFormat)
helperSubConverter = helperConverter.subConverter
# if helperFormat == 'musicxml':
# ### hack to make musescore excerpts -- fix with a converter class in MusicXML
# savedDefaultTitle = defaults.title
# savedDefaultAuthor = defaults.author
# defaults.title = ''
# defaults.author = ''
# if 'Opus' not in obj.classes:
fp = helperSubConverter.write(stream,
helperFormat,
subformats=helperSubformats)
# defaults.title = savedDefaultTitle
# defaults.author = savedDefaultAuthor
if helperSubformats[0] == 'png':
ipo = ipythonObjects.IPythonPNGObject(fp)
target_filename = os.path.join(os.getcwd(),
"static/tmp/{}.png".format(filename))
shutil.move(ipo.fp, target_filename)
return (target_filename)
def show(self, obj, fmt, app=None, subformats=None, **keywords):
if subformats is None:
subformats = ['vexflow']
if len(subformats) > 0 and subformats[0] == 'vexflow':
return self.vfshow(obj)
#subformats = ['lilypond','png']
helperFormat = subformats[0]
helperSubformats = subformats[1:]
from music21 import converter
helperConverter = converter.Converter()
helperConverter.setSubconverterFromFormat(helperFormat)
helperSubConverter = helperConverter.subConverter
fp = helperSubConverter.write(obj,
helperFormat,
subformats=helperSubformats)
if helperSubformats[0] == 'png':
from music21.ipython21 import objects as ipythonObjects
ipo = ipythonObjects.IPythonPNGObject(fp)
return ipo
def show(self, obj, fmt, app=None, subformats=None, **keywords):
'''
show using the appropriate subformat.
'''
if subformats is None:
subformats = ['vexflow']
if subformats and subformats[0] == 'vexflow':
return self.vfshow(obj)
#subformats = ['lilypond','png']
if subformats:
helperFormat = subformats[0]
helperSubformats = subformats[1:]
else:
helperFormat = "musicxml"
helperSubformats = []
if not helperSubformats:
helperSubformats = ['png']
from music21 import converter
helperConverter = converter.Converter()
helperConverter.setSubconverterFromFormat(helperFormat)
helperSubConverter = helperConverter.subConverter
if helperFormat in ('musicxml', 'xml', 'lilypond', 'lily'):
### hack to make musescore excerpts -- fix with a converter class in MusicXML
savedDefaultTitle = defaults.title
savedDefaultAuthor = defaults.author
defaults.title = ''
defaults.author = ''
if 'Opus' not in obj.classes:
fp = helperSubConverter.write(obj,
helperFormat,
subformats=helperSubformats)
defaults.title = savedDefaultTitle
defaults.author = savedDefaultAuthor
if helperSubformats[0] == 'png':
from music21.ipython21 import objects as ipythonObjects
ipo = ipythonObjects.IPythonPNGObject(fp)
return ipo
else:
from IPython.display import Image, display # @UnresolvedImport
for s in obj.scores:
fp = helperSubConverter.write(s,
helperFormat,
subformats=helperSubformats)
if helperSubformats[0] == 'png':
from music21.ipython21 import objects as ipythonObjects # @Reimport
ipo = ipythonObjects.IPythonPNGObject(fp)
display(Image(filename=ipo.fp, retina=True))
defaults.title = savedDefaultTitle
defaults.author = savedDefaultAuthor
return None
elif helperFormat == 'midi':
import base64
from IPython.display import HTML, display # @UnresolvedImport @Reimport
fp = helperSubConverter.write(obj,
helperFormat,
subformats=helperSubformats)
with open(fp, 'rb') as f:
binaryMidiData = f.read()
binaryBase64 = base64.b64encode(binaryMidiData)
s = common.SingletonCounter()
outputId = "midiPlayerDiv" + str(s())
display(
HTML("""
<div id='""" + outputId + """'></div>
<link rel="stylesheet" href="http://artusi.xyz/music21j/css/m21.css"
type="text/css" />
<script>
require.config({
paths: {'music21': 'http://artusi.xyz/music21j/src/music21'}
});
require(['music21'], function() {
mp = new music21.miditools.MidiPlayer();
mp.addPlayer('#""" + outputId + """');
mp.base64Load('data:audio/midi;base64,""" +
binaryBase64.decode('utf-8') + """');
});
</script>"""))
def show(self, obj, fmt, app=None, subformats=None, **keywords): # pragma: no cover
'''
show using the appropriate subformat.
'''
if subformats is None:
subformats = ['vexflow']
if subformats and subformats[0] == 'vexflow':
return self.vfshow(obj)
#subformats = ['lilypond', 'png']
if subformats:
helperFormat = subformats[0]
helperSubformats = subformats[1:]
else:
helperFormat = "musicxml"
helperSubformats = []
if not helperSubformats:
helperSubformats = ['png']
from music21 import converter
helperConverter = converter.Converter()
helperConverter.setSubconverterFromFormat(helperFormat)
helperSubConverter = helperConverter.subConverter
from IPython.display import Image, display, HTML # @UnresolvedImport
if helperFormat in ('musicxml', 'xml', 'lilypond', 'lily'):
### hack to make musescore excerpts -- fix with a converter class in MusicXML
from music21.ipython21 import objects as ipythonObjects
savedDefaultTitle = defaults.title
savedDefaultAuthor = defaults.author
defaults.title = ''
defaults.author = ''
if 'Opus' not in obj.classes:
scores = [obj]
else:
scores = list(obj.scores)
for s in scores:
fp = helperSubConverter.write(s, helperFormat,
subformats=helperSubformats, **keywords)
if helperSubformats[0] == 'png':
if not str(environLocal['musescoreDirectPNGPath']).startswith('/skip'):
ipo = ipythonObjects.IPythonPNGObject(fp)
display(Image(data=ipo.getData(), retina=True))
else:
# smallest transparent pixel
pngData64 = (b'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA'
+ b'6fptVAAAACklEQVQYV2P4DwABAQEAWk1v8QAAAABJRU5ErkJggg==')
pngData = base64.b64decode(pngData64)
display(Image(data=pngData, retina=True))
defaults.title = savedDefaultTitle
defaults.author = savedDefaultAuthor
return None
elif helperFormat == 'midi':
fp = helperSubConverter.write(obj, helperFormat, subformats=helperSubformats)
with open(fp, 'rb') as f:
binaryMidiData = f.read()
binaryBase64 = base64.b64encode(binaryMidiData)
s = common.SingletonCounter()
outputId = "midiPlayerDiv" + str(s())
display(HTML("""
<div id='""" + outputId + """'></div>
<link rel="stylesheet" href="http://artusi.xyz/music21j/css/m21.css"
type="text/css" />
<script>
require.config({
paths: {'music21': 'http://artusi.xyz/music21j/src/music21'}
});
require(['music21'], function() {
mp = new music21.miditools.MidiPlayer();
mp.addPlayer('#""" + outputId + """');
mp.base64Load('data:audio/midi;base64,""" +
binaryBase64.decode('utf-8') + """');
});
</script>"""))
