1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
# 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.
"""
A widget and dialog to show an output preview of a LilyPond document.
"""
import os
import glob
import shutil
from PyQt5.QtCore import QSettings, QSize
from PyQt5.QtWidgets import (QComboBox, QDialog, QDialogButtonBox, QHBoxLayout,
QLabel, QStackedLayout, QVBoxLayout, QWidget)
import ly.document
import ly.docinfo
import app
import codecs
import icons
import job
import log
import util
import qutil
import lilypondinfo
import popplerview
import popplertools
import widgets.progressbar
class MusicPreviewJob(job.Job):
def __init__(self, text, title=None):
super(MusicPreviewJob, self).__init__()
self.decode_errors = 'replace'
self.decoder_stdout = self.decoder_stderr = codecs.getdecoder('utf-8')
self.directory = util.tempdir()
self.document = os.path.join(self.directory, 'document.ly')
with open(self.document, 'wb') as f:
f.write(text.encode('utf-8'))
info = lilypondinfo.preferred()
if QSettings().value("lilypond_settings/autoversion", True, bool):
version = ly.docinfo.DocInfo(ly.document.Document(text, 'lilypond')).version()
if version:
info = lilypondinfo.suitable(version)
lilypond = info.abscommand() or info.command
self.command = [lilypond, '-dno-point-and-click', '--pdf', self.document]
if title:
self.set_title(title)
def resultfiles(self):
return glob.glob(os.path.join(self.directory, '*.pdf'))
def cleanup(self):
shutil.rmtree(self.directory, ignore_errors=True)
class MusicPreviewWidget(QWidget):
def __init__(self, parent=None):
super(MusicPreviewWidget, self).__init__(parent)
self._lastbuildtime = 10.0
self._running = None
self._current = None
self._chooserLabel = QLabel()
self._chooser = QComboBox(self, activated=self.selectDocument)
self._log = log.Log()
self._view = popplerview.View()
self._progress = widgets.progressbar.TimedProgressBar()
self._stack = QStackedLayout()
self._top = QWidget()
layout = QVBoxLayout()
self.setLayout(layout)
layout.addWidget(self._top)
layout.addLayout(self._stack)
layout.addWidget(self._progress)
top = QHBoxLayout()
top.setContentsMargins(0, 0, 0, 0)
top.setSpacing(2)
self._top.setLayout(top)
top.addWidget(self._chooserLabel)
top.addWidget(self._chooser)
top.addStretch(1)
self._stack.addWidget(self._log)
self._stack.addWidget(self._view)
self._top.hide()
app.aboutToQuit.connect(self.cleanup)
app.translateUI(self)
def translateUI(self):
self._chooserLabel.setText(_("Document:"))
def preview(self, text, title=None):
"""Runs LilyPond on the given text and shows the resulting PDF."""
j = self._running = MusicPreviewJob(text, title)
j.done.connect(self._done)
self._log.clear()
self._log.connectJob(j)
j.start()
self._progress.start(self._lastbuildtime)
def _done(self, success):
self._progress.stop(False)
pdfs = self._running.resultfiles()
self.setDocuments(pdfs)
if not pdfs:
self._stack.setCurrentWidget(self._log)
return
self._lastbuildtime = self._running.elapsed_time()
self._stack.setCurrentWidget(self._view)
if self._current:
self._current.cleanup()
self._current = self._running # keep the tempdir
self._running = None
def setDocuments(self, pdfs):
"""Loads the given PDF path names in the UI."""
self._documents = [popplertools.Document(name) for name in pdfs]
self._chooser.clear()
self._chooser.addItems([d.name() for d in self._documents])
self._top.setVisible(len(self._documents) > 1)
if pdfs:
self._chooser.setCurrentIndex(0)
self.selectDocument(0)
else:
self._view.clear()
def selectDocument(self, index):
doc = self._documents[index].document()
if doc:
self._view.load(doc)
def cleanup(self):
if self._running:
self._running.abort()
self._running.cleanup()
self._running = None
if self._current:
self._current.cleanup()
self._current = None
self._stack.setCurrentWidget(self._log)
self._top.hide()
self._view.clear()
def print_(self):
"""Prints the currently displayed document."""
if self._documents:
doc = self._documents[self._chooser.currentIndex()]
import popplerprint
popplerprint.printDocument(doc, self)
class MusicPreviewDialog(QDialog):
def __init__(self, parent=None):
super(MusicPreviewDialog, self).__init__(parent)
layout = QVBoxLayout()
self.setLayout(layout)
self._widget = MusicPreviewWidget()
layout.addWidget(self._widget)
layout.addWidget(widgets.Separator())
b = QDialogButtonBox()
layout.addWidget(b)
b.addButton(QDialogButtonBox.Close)
b.rejected.connect(self.accept)
self._printButton = b.addButton('', QDialogButtonBox.ActionRole)
self._printButton.setIcon(icons.get("document-print"))
self._printButton.clicked.connect(self._widget.print_)
self._printButton.hide()
qutil.saveDialogSize(self, "musicpreview/dialog/size", QSize(500, 350))
app.translateUI(self)
def translateUI(self):
self._printButton.setText(_("&Print"))
self.setWindowTitle(app.caption(_("Music Preview")))
def preview(self, text, title=None):
self._widget.preview(text, title)
def cleanup(self):
self._widget.cleanup()
def setEnablePrintButton(self, enable):
"""Enables or disables the print button."""
self._printButton.setVisible(enable)
|
