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# This file is part of the Frescobaldi project, http://www.frescobaldi.org/
#
# Copyright (c) 2008, 2009, 2010 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.
from __future__ import unicode_literals
""" Functions to run convert-ly and insert the LilyPond version """
from subprocess import Popen, PIPE
import ly.tokenize, ly.version
from PyKDE4.kdecore import i18n, KGlobal
from PyKDE4.kdeui import KMessageBox
from PyKDE4.ktexteditor import KTextEditor
from frescobaldi_app.mainapp import lilyPondCommand, convertLyCommand
def defaultVersion():
"""
Returns the LilyPond version according to the user's preference:
the version of the currently installed LilyPond, the version of the last
rule in convert-ly, or a custom version.
"""
lilypond = ly.version.LilyPondInstance(lilyPondCommand())
prefs = config("preferences")
pver = prefs.readEntry("default version", "lilypond")
version = ''
if pver == "custom":
version = ly.version.Version.fromString(prefs.readEntry("custom version", ""))
elif pver == "convert-ly":
version = lilypond.lastConvertLyRuleVersion()
return version or lilypond.version()
def insertVersion(mainwin):
"""
Insert the current LilyPond version into the current document
if it does not already have a version command.
"""
doc = mainwin.currentDocument()
for token in ly.tokenize.LineColumnTokenizer().tokens(doc.text()):
if token == "\\version":
doc.view.setCursorPosition(KTextEditor.Cursor(token.line, token.column))
KMessageBox.sorry(mainwin,
i18n("Your document has already a LilyPond version statement."),
i18n("Version already set"))
return
else:
version = defaultVersion()
if version:
doc.doc.insertLine(0, '\\version "{0}"'.format(version))
else:
KMessageBox.sorry(mainwin,
i18n("Can't determine the version of LilyPond. "
"Please check your LilyPond installation."))
def convertLy(mainwin):
"""
Run the current document through convert-ly.
"""
doc = mainwin.currentDocument()
text = doc.text()
docVersion = ly.version.getVersion(text)
lilyVersion = ly.version.LilyPondInstance(lilyPondCommand()).version()
if not docVersion:
KMessageBox.sorry(mainwin, i18n(
"Can't determine the LilyPond version of the current document."
" Please add a \\version statement with the correct version."))
elif not lilyVersion:
KMessageBox.sorry(mainwin, i18n(
"Can't determine the version of LilyPond. "
"Please check your LilyPond installation."))
elif docVersion >= lilyVersion:
KMessageBox.information(mainwin, i18n(
"This LilyPond document is already up-to-date."))
else:
# Ok, let's run convert-ly.
# We add the from-version. Only in that case convert-ly wants to
# read from stdin.
try:
out, err = Popen(
(convertLyCommand(), "-f", str(docVersion), "-"),
stdin=PIPE, stdout=PIPE, stderr=PIPE
).communicate(text.encode('utf8'))
if out:
doc.setText("{0}\n\n%{{\n{1}\n%}}\n".format(out.decode('utf8'), err.decode('utf8')))
KMessageBox.information(mainwin, i18n(
"The document has been processed with convert-ly. You'll find "
"the messages of convert-ly in a comment block at the end. "
"You still may have to edit some parts manually."))
else:
msg = "<br><br>" + err.decode('utf8').replace('\n', '<br>')
KMessageBox.information(mainwin, i18n(
"The document has been processed with convert-ly, but "
"remained unchanged. This is the message given by "
"convert-ly: %1", msg))
except OSError as e:
msg = unicode(e)
KMessageBox.error(mainwin, i18n("Could not start convert-ly: %1", msg))
def config(group):
return KGlobal.config().group(group)
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