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# This file is part of the Frescobaldi project, http://www.frescobaldi.org/
#
# Copyright (c) 2008 - 2014 by Wilbert Berendsen
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# See http://www.gnu.org/licenses/ for more information.
"""
Import non-lilypond file types.
"""
import os
from PyQt5.QtCore import Qt, QUrl
from PyQt5.QtGui import QKeySequence, QTextCursor
from PyQt5.QtWidgets import QAction, QFileDialog, QMessageBox
import app
import icons
import actioncollection
import actioncollectionmanager
import plugin
import util
import qutil
class FileImport(plugin.MainWindowPlugin):
def __init__(self, mainwindow):
ac = self.actionCollection = Actions()
actioncollectionmanager.manager(mainwindow).addActionCollection(ac)
ac.import_all.triggered.connect(self.importAll)
ac.import_musicxml.triggered.connect(self.importMusicXML)
ac.import_midi.triggered.connect(self.importMidi)
ac.import_abc.triggered.connect(self.importAbc)
def importAll(self):
"""Reads the file type and determines which import to use."""
filetypes = ';;'.join((
'{0} (*.xml *.mxl *.midi *.mid *.abc)'.format(_("All importable formats")),
'{0} (*.xml *.mxl)'.format(_("MusicXML Files")),
'{0} (*.midi *.mid)'.format(_("Midi Files")),
'{0} (*.abc)'.format(_("ABC Files")),
'{0} (*)'.format(_("All Files")),
))
caption = app.caption(_("dialog title", "Import"))
directory = os.path.dirname(self.mainwindow().currentDocument().url().toLocalFile()) or app.basedir()
importfiles = QFileDialog.getOpenFileNames(self.mainwindow(), caption, directory, filetypes)[0]
if not importfiles:
return # the dialog was cancelled by user
for imp in importfiles:
if self.isImportable(imp):
self.openDialog(imp)
else:
QMessageBox.critical(None, _("Error"),
_("The file {filename} could not be converted. "
"Wrong file type.").format(filename=imp))
def isImportable(self, infile):
"""Check if the file is importable."""
ext = os.path.splitext(infile)[1]
if ext in ['.xml', '.mxl', '.midi', '.mid', '.abc']:
return True
else:
return False
def openDialog(self, infile):
"""Check file type and open the proper dialog."""
self.importfile = infile
ext = os.path.splitext(infile)[1]
if ext == '.xml' or ext == '.mxl':
self.openMusicxmlDialog()
elif ext == '.midi' or ext == '.mid':
self.openMidiDialog()
elif ext == '.abc':
self.openAbcDialog()
def importMusicXML(self):
"""Opens a MusicXML file. Converts it to ly by using musicxml2ly."""
filetypes = '{0} (*.xml *.mxl);;{1} (*)'.format(
_("MusicXML Files"), _("All Files"))
caption = app.caption(_("dialog title", "Import a MusicXML file"))
directory = os.path.dirname(self.mainwindow().currentDocument().url().toLocalFile()) or app.basedir()
self.importfile = QFileDialog.getOpenFileName(self.mainwindow(), caption, directory, filetypes)[0]
if not self.importfile:
return # the dialog was cancelled by user
self.openMusicxmlDialog()
def openMusicxmlDialog(self):
try:
dlg = self._importDialog = self.mxmlDlg
except AttributeError:
from . import musicxml
dlg = self._importDialog = self.mxmlDlg = musicxml.Dialog(self.mainwindow())
dlg.addAction(self.mainwindow().actionCollection.help_whatsthis)
dlg.setWindowModality(Qt.WindowModal)
self.runImport()
def importMidi(self):
"""Opens an midi file. Converts it to ly by using midi2ly."""
filetypes = '{0} (*.midi *.mid);;{1} (*)'.format(
_("Midi Files"), _("All Files"))
caption = app.caption(_("dialog title", "Import a midi file"))
directory = os.path.dirname(self.mainwindow().currentDocument().url().toLocalFile()) or app.basedir()
self.importfile = QFileDialog.getOpenFileName(self.mainwindow(), caption, directory, filetypes)[0]
if not self.importfile:
return # the dialog was cancelled by user
self.openMidiDialog()
def openMidiDialog(self):
try:
dlg = self._importDialog = self.midDlg
except AttributeError:
from . import midi
dlg = self._importDialog = self.midDlg = midi.Dialog(self.mainwindow())
dlg.addAction(self.mainwindow().actionCollection.help_whatsthis)
dlg.setWindowModality(Qt.WindowModal)
self.runImport()
def importAbc(self):
"""Opens an abc file. Converts it to ly by using abc2ly."""
filetypes = '{0} (*.abc);;{1} (*)'.format(
_("ABC Files"), _("All Files"))
caption = app.caption(_("dialog title", "Import an abc file"))
directory = os.path.dirname(self.mainwindow().currentDocument().url().toLocalFile()) or app.basedir()
self.importfile = QFileDialog.getOpenFileName(self.mainwindow(), caption, directory, filetypes)[0]
if not self.importfile:
return # the dialog was cancelled by user
self.openAbcDialog()
def openAbcDialog(self):
try:
dlg = self._importDialog = self.abcDlg
except AttributeError:
from . import abc
dlg = self._importDialog = self.abcDlg = abc.Dialog(self.mainwindow())
dlg.addAction(self.mainwindow().actionCollection.help_whatsthis)
dlg.setWindowModality(Qt.WindowModal)
self.runImport()
def runImport(self):
"""Generic execution of all import dialogs."""
dlg = self._importDialog
dlg.setDocument(self.importfile)
if dlg.exec_():
with qutil.busyCursor():
stdout, stderr = dlg.run_command()
if stdout: #success
dlg.saveSettings()
lyfile = os.path.splitext(self.importfile)[0] + ".ly"
doc = self.createDocument(lyfile, stdout.decode('utf-8'))
self.postImport(dlg.getPostSettings(), doc)
self.mainwindow().saveDocument(doc)
else: #failure to convert
QMessageBox.critical(None, _("Error"),
_("The file couldn't be converted. Error message:\n") + stderr.decode('utf-8'))
def createDocument(self, filename, contents):
"""Create a new document using the specified filename and contents.
Make it the current document in our mainwindow.
"""
while os.path.exists(filename) or app.findDocument(QUrl.fromLocalFile(filename)):
filename = util.next_file(filename)
doc = app.openUrl(QUrl())
doc.setPlainText(contents)
doc.setUrl(QUrl.fromLocalFile(filename))
doc.setModified(True)
self.mainwindow().setCurrentDocument(doc)
return doc
def postImport(self, settings, doc):
"""Adaptations of the source after running musicxml2ly
Present settings:
Reformat source
Remove superfluous durations
Remove duration scaling
Engrave directly
"""
cursor = QTextCursor(doc)
if settings[0]:
import reformat
reformat.reformat(cursor)
if settings[1]:
cursor.select(QTextCursor.Document)
from rhythm import rhythm
rhythm.rhythm_implicit_per_line(cursor)
if settings[2]:
cursor.select(QTextCursor.Document)
from rhythm import rhythm
rhythm.rhythm_remove_fraction_scaling(cursor)
if settings[3]:
import engrave
engrave.engraver(self.mainwindow()).engrave('preview', doc, False)
class Actions(actioncollection.ActionCollection):
name = "file_import"
def createActions(self, parent):
self.import_all = QAction(parent)
self.import_musicxml = QAction(parent)
self.import_midi = QAction(parent)
self.import_abc = QAction(parent)
self.import_all.setIcon(icons.get("document-import"))
def translateUI(self):
self.import_all.setText(_("Import..."))
self.import_all.setToolTip(_("Generic import for all LilyPond tools."))
self.import_musicxml.setText(_("Import MusicXML..."))
self.import_musicxml.setToolTip(_("Import a MusicXML file using musicxml2ly."))
self.import_midi.setText(_("Import Midi..."))
self.import_midi.setToolTip(_("Import a Midi file using midi2ly."))
self.import_abc.setText(_("Import abc..."))
self.import_abc.setToolTip(_("Import an abc file using abc2ly."))
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