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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.
"""
The LogWidget.
"""
import itertools
import os
import re
import sys
import weakref
from PyQt5.QtCore import QSettings
from PyQt5.QtGui import (
QColor, QTextCharFormat, QTextCursor, QTextFormat)
from PyQt5.QtWidgets import QTextEdit
import app
import log
import job
import jobmanager
import jobattributes
import qutil
from . import errors
class LogWidget(log.Log):
"""A Log widget that tracks document changes in the MainWindow."""
def __init__(self, logtool):
super(LogWidget, self).__init__(logtool)
self._rawView = True
self._document = lambda: None
self._errors = []
self._currentErrorIndex = -1
self.readSettings()
self.anchorClicked.connect(self.slotAnchorClicked)
logtool.mainwindow().currentDocumentChanged.connect(self.switchDocument)
app.documentClosed.connect(self.documentClosed)
app.settingsChanged.connect(self.readSettings)
doc = logtool.mainwindow().currentDocument()
if doc:
self.switchDocument(doc)
def readSettings(self):
self._formats = self.logformats()
self._rawView = QSettings().value("log/rawview", True, bool)
if self._document():
self.switchDocument(self._document()) # reload
def switchDocument(self, doc):
"""Called when the document is changed."""
job = jobmanager.job(doc)
if job:
# do not show the messages for auto-engrave jobs if the user has disabled it
if jobattributes.get(job).hidden and QSettings().value("log/hide_auto_engrave", False, bool):
return
prevDoc = self._document()
if prevDoc and prevDoc != doc:
prevJob = jobmanager.job(prevDoc)
if prevJob:
prevJob.output.disconnect(self.write)
self._document = weakref.ref(doc)
self.clear()
self.connectJob(job)
def documentClosed(self, doc):
if doc == self._document():
self.clear()
def clear(self):
self._errors = []
self._currentErrorIndex = -1
self.setExtraSelections([])
super(LogWidget, self).clear()
def writeMessage(self, message, type):
"""This writes both status and output messages to the log.
For output messages also the correct encoding is re-applied:
LilyPond writes filenames out in the system's filesystemencoding,
while the messages are always written in UTF-8 encoding...
"""
if type == job.STDERR:
# find filenames in message:
parts = iter(errors.message_re.split(message.encode('latin1')))
msg = next(parts).decode('utf-8', 'replace')
self.cursor.insertText(msg, self.textFormat(type))
enc = sys.getfilesystemencoding()
for url, path, line, col, msg in zip(*itertools.repeat(parts, 5)):
url = url.decode(enc)
path = path.decode(enc)
msg = msg.decode('utf-8', 'replace')
if self._rawView:
fmt = QTextCharFormat(self.textFormat(type))
display_url = url
else:
fmt = QTextCharFormat(self.textFormat("link"))
display_url = os.path.basename(path)
fmt.setAnchor(True)
fmt.setAnchorHref(str(len(self._errors)))
fmt.setToolTip(_("Click to edit this file"))
pos = self.cursor.position()
self.cursor.insertText(display_url, fmt)
self.cursor.insertText(msg, self.textFormat(type))
self._errors.append((pos, self.cursor.position(), url))
else:
if type == job.STDOUT:
message = message.encode('latin1').decode('utf-8')
super(LogWidget, self).writeMessage(message, type)
def slotAnchorClicked(self, url):
"""Called when the user clicks a filename in the log."""
index = int(url.toString())
if 0 <= index < len(self._errors):
self.highlightError(index)
def gotoError(self, direction):
"""Jumps to the next (1) or previous (-1) error message."""
if self._errors:
i = self._currentErrorIndex + direction
if i < 0:
i = len(self._errors) - 1
elif i >= len(self._errors):
i = 0
self.highlightError(i)
def highlightError(self, index):
"""Hihglights the error message at the given index and jumps to its location."""
self._currentErrorIndex = index
# set text format
pos, anchor, url = self._errors[index]
es = QTextEdit.ExtraSelection()
es.cursor = QTextCursor(self.document())
es.cursor.setPosition(pos)
es.cursor.setPosition(anchor, QTextCursor.KeepAnchor)
bg = qutil.mixcolor(self.palette().highlight().color(), self.palette().base().color(), 0.4)
es.format.setBackground(bg)
es.format.setProperty(QTextFormat.FullWidthSelection, True)
self.setExtraSelections([es])
# scroll log to the message
cursor = QTextCursor(self.document())
cursor.setPosition(anchor)
self.setTextCursor(cursor)
cursor.setPosition(pos)
self.setTextCursor(cursor)
# jump to the error location
cursor = errors.errors(self._document()).cursor(url, True)
if cursor:
self.parentWidget().mainwindow().setTextCursor(cursor, findOpenView=True)
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