class Document(QWidget):
"""
Base class for documents on workspace, such as opened source file, Qt Designer and Qt Assistant, ...
Inherit this class, if you want to create new document type
This class may requre redesign, if we need to add support for non-textual or non-unicode editor.
DO redesign instead of doing dirty hacks
"""
documentDataChanged = pyqtSignal()
"""
documentDataChanged()
**Signal** emitted, when document icon or toolTip has changed
(i.e. document has been modified externally)
"""
_EOL_CONVERTOR = {r'\r\n': '\r\n',
r'\n': '\n',
r'\r': '\r'}
def __init__( self, parentObject, filePath, createNew=False):
"""Create editor and open file.
If file is None or createNew is True, empty not saved file is created
IO Exceptions are not catched, therefore, must be catched on upper level
"""
QWidget.__init__( self, parentObject)
self._neverSaved = filePath is None or createNew
self._filePath = filePath
self._externallyRemoved = False
self._externallyModified = False
# File opening should be implemented in the document classes
self._fileWatcher = _FileWatcher(filePath)
self._fileWatcher.modified.connect(self._onWatcherFileModified)
self._fileWatcher.removed.connect(self._onWatcherFileRemoved)
if filePath and self._neverSaved:
core.mainWindow().appendMessage('New file "%s" is going to be created' % filePath, 5000)
self.qutepart = Qutepart(self)
self.qutepart.setStyleSheet('QPlainTextEdit {border: 0}')
self.qutepart.userWarning.connect(lambda text: core.mainWindow().statusBar().showMessage(text, 5000))
self._applyQpartSettings()
core.uiSettingsManager().dialogAccepted.connect(self._applyQpartSettings)
layout = QVBoxLayout(self)
layout.setMargin(0)
layout.addWidget(self.qutepart)
self.setFocusProxy(self.qutepart)
if not self._neverSaved:
originalText = self._readFile(filePath)
self.qutepart.text = originalText
else:
originalText = ''
#autodetect eol, if need
self._configureEolMode(originalText)
self._tryDetectSyntax()
def _tryDetectSyntax(self):
if len(self.qutepart.lines) > (100 * 1000) and \
self.qutepart.language() is None:
"""Qutepart uses too lot of memory when highlighting really big files
It may crash the editor, so, do not highlight really big files.
But, do not disable highlighting for files, which already was highlighted
"""
return
self.qutepart.detectSyntax(sourceFilePath=self.filePath(),
firstLine=self.qutepart.lines[0])
def del_(self):
"""Explicytly called destructor
"""
self._fileWatcher.disable()
# avoid emit on text change, document shall behave like it is already dead
self.qutepart.document().modificationChanged.disconnect()
self.qutepart.text = '' # stop background highlighting, free memory
def _onWatcherFileModified(self, modified):
"""File has been modified
"""
self._externallyModified = modified
self.documentDataChanged.emit()
def _onWatcherFileRemoved(self, isRemoved):
"""File has been removed
"""
self._externallyRemoved = isRemoved
self.documentDataChanged.emit()
def _readFile(self, filePath):
"""Read the file contents.
Shows QMessageBox for UnicodeDecodeError, but raises IOError, if failed to read file
"""
with open(filePath, 'rb') as openedFile: # Exception is ok, raise it up
self._filePath = os.path.abspath(filePath) # abspath won't fail, if file exists
data = openedFile.read()
self._fileWatcher.setContents(data)
try:
text = unicode(data, 'utf8')
except UnicodeDecodeError, ex:
QMessageBox.critical(None,
self.tr("Can not decode file"),
filePath + '\n' +
unicode(str(ex), 'utf8') +
'\nProbably invalid encoding was set. ' +
'You may corrupt your file, if saved it')
text = unicode(data, 'utf8', 'replace')
# Strip last EOL. It will be restored, when saving
if text.endswith('\r\n'):
text = text[:-2]
elif text.endswith('\r') or text.endswith('\n'):
text = text[:-1]
return text
class Document(QWidget):
"""
Document is a opened file representation.
It contains file management methods and uses `Qutepart <http://qutepart.rtfd.org/>`_ as an editor widget.
Qutepart is available as ``qutepart`` attribute.
"""
documentDataChanged = pyqtSignal()
"""
documentDataChanged()
**Signal** emitted, when document icon or toolTip has changed
(i.e. document has been modified externally)
"""
_EOL_CONVERTOR = {r'\r\n': '\r\n', r'\n': '\n', r'\r': '\r'}
def __init__(self, parentObject, filePath, createNew=False):
"""Create editor and open file.
If file is None or createNew is True, empty not saved file is created
IO Exceptions are not catched, therefore, must be catched on upper level
"""
QWidget.__init__(self, parentObject)
self._neverSaved = filePath is None or createNew
self._filePath = filePath
self._externallyRemoved = False
self._externallyModified = False
# File opening should be implemented in the document classes
self._fileWatcher = _FileWatcher(filePath)
self._fileWatcher.modified.connect(self._onWatcherFileModified)
self._fileWatcher.removed.connect(self._onWatcherFileRemoved)
self.qutepart = Qutepart(self)
self.qutepart.setStyleSheet('QPlainTextEdit {border: 0}')
self.qutepart.userWarning.connect(
lambda text: core.mainWindow().statusBar().showMessage(text, 5000))
self._applyQpartSettings()
core.uiSettingsManager().dialogAccepted.connect(
self._applyQpartSettings)
layout = QVBoxLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.qutepart)
self.setFocusProxy(self.qutepart)
if not self._neverSaved:
originalText = self._readFile(filePath)
self.qutepart.text = originalText
else:
originalText = ''
# autodetect eol, if need
self._configureEolMode(originalText)
self._tryDetectSyntax()
QApplication.instance().installEventFilter(self)
def _tryDetectSyntax(self):
if len(self.qutepart.lines) > (100 * 1000) and \
self.qutepart.language() is None:
"""Qutepart uses too lot of memory when highlighting really big files
It may crash the editor, so, do not highlight really big files.
But, do not disable highlighting for files, which already was highlighted
"""
return
self.qutepart.detectSyntax(sourceFilePath=self.filePath(),
firstLine=self.qutepart.lines[0])
def terminate(self):
"""Explicytly called destructor
"""
self._fileWatcher.term()
# avoid emitting signals, document shall behave like it is already dead
self.qutepart.document().modificationChanged.disconnect()
self.qutepart.cursorPositionChanged.disconnect() #
self.qutepart.textChanged.disconnect()
self.qutepart.terminate() # stop background highlighting, free memory
sip.delete(self)
@pyqtSlot(bool)
def _onWatcherFileModified(self, modified):
"""File has been modified
"""
self._externallyModified = modified
self.documentDataChanged.emit()
@pyqtSlot(bool)
def _onWatcherFileRemoved(self, isRemoved):
"""File has been removed
"""
self._externallyRemoved = isRemoved
self.documentDataChanged.emit()
def _readFile(self, filePath):
"""Read the file contents.
Shows QMessageBox for UnicodeDecodeError
"""
with open(filePath,
'rb') as openedFile: # Exception is ok, raise it up
self._filePath = os.path.abspath(
filePath) # abspath won't fail, if file exists
data = openedFile.read()
self._fileWatcher.setContents(data)
try:
text = str(data, 'utf8')
except UnicodeDecodeError as ex:
QMessageBox.critical(
None, self.tr("Can not decode file"), filePath + '\n' +
str(ex) + '\nProbably invalid encoding was set. ' +
'You may corrupt your file, if saved it')
text = str(data, 'utf8', 'replace')
# Strip last EOL. Qutepart adds it when saving file
if text.endswith('\r\n'):
text = text[:-2]
elif text.endswith('\r') or text.endswith('\n'):
text = text[:-1]
return text
def isExternallyModified(self):
"""Check if document's file has been modified externally.
This method does not do any file system access, but only returns cached info
"""
return self._externallyModified
def isExternallyRemoved(self):
"""Check if document's file has been deleted externally.
This method does not do any file system access, but only returns cached info
"""
return self._externallyRemoved
def isNeverSaved(self):
"""Check if document has been created, but never has been saved on disk
"""
return self._neverSaved
def filePath(self):
"""Return the document file absolute path.
``None`` if not set (new document)"""
return self._filePath
def fileName(self):
"""Document file name without a path.
``None`` if not set (new document)"""
if self._filePath:
return os.path.basename(self._filePath)
else:
return None
def setFilePath(self, newPath):
"""Change document file path.
Used when saving first time, or on Save As action
"""
core.workspace().documentClosed.emit(self)
self._filePath = newPath
self._fileWatcher.setPath(newPath)
self._neverSaved = True
core.workspace().documentOpened.emit(self)
core.workspace().currentDocumentChanged.emit(self, self)
def _stripTrailingWhiteSpace(self):
lineHasTrailingSpace = ((line and line[-1].isspace())
for line in self.qutepart.lines)
if any(lineHasTrailingSpace):
with self.qutepart:
for lineNo, line in enumerate(self.qutepart.lines):
if line and line[-1].isspace():
self.qutepart.lines[lineNo] = line.rstrip()
else:
pass # Do not enter with statement, because it causes wrong textChanged signal
def _saveToFs(self, filePath):
"""Low level method. Always saves file, even if not modified
"""
# Create directory
dirPath = os.path.dirname(filePath)
if not os.path.exists(dirPath):
try:
os.makedirs(dirPath)
except OSError as ex:
error = str(ex)
QMessageBox.critical(
None, self.tr("Cannot save file"),
self.tr("Cannot create directory '%s'. Error '%s'." %
(dirPath, error)))
return
text = self.qutepart.textForSaving()
# Write file
data = text.encode('utf8')
self._fileWatcher.disable()
try:
with open(filePath, 'wb') as openedFile:
openedFile.write(data)
self._fileWatcher.setContents(data)
except IOError as ex:
QMessageBox.critical(None, self.tr("Cannot write to file"),
str(ex))
return
finally:
self._fileWatcher.enable()
# Update states
self._neverSaved = False
self._externallyRemoved = False
self._externallyModified = False
self.qutepart.document().setModified(False)
self.documentDataChanged.emit()
if self.qutepart.language() is None:
self._tryDetectSyntax()
def saveFile(self):
"""Save the file to file system.
Show QFileDialog if file name is not known.
Return False, if user cancelled QFileDialog, True otherwise
"""
# Get path
if not self._filePath:
path, _ = QFileDialog.getSaveFileName(self,
self.tr('Save file as...'))
if path:
self.setFilePath(path)
else:
return False
if core.config()['Qutepart']['StripTrailingWhitespace']:
self._stripTrailingWhiteSpace()
self._saveToFs(self.filePath())
return True
def saveFileAs(self):
"""Ask for new file name with dialog. Save file
"""
if self._filePath:
default_filename = os.path.basename(self._filePath)
else:
default_filename = ''
path, _ = QFileDialog.getSaveFileName(self, self.tr('Save file as...'),
default_filename)
if not path:
return
self.setFilePath(path)
self._saveToFs(path)
def reload(self):
"""Reload the file from the disk
If child class reimplemented this method, it MUST call method of the parent class
for update internal bookkeeping"""
text = self._readFile(self.filePath())
pos = self.qutepart.cursorPosition
self.qutepart.text = text
self._externallyModified = False
self._externallyRemoved = False
self.qutepart.cursorPosition = pos
self.qutepart.centerCursor()
def modelToolTip(self):
"""Tool tip for the opened files model
"""
toolTip = self.filePath()
if toolTip is None:
return None
if self.qutepart.document().isModified():
toolTip += "<br/><font color='blue'>%s</font>" % self.tr(
"Locally Modified")
if self._externallyModified:
toolTip += "<br/><font color='red'>%s</font>" % self.tr(
"Externally Modified")
if self._externallyRemoved:
toolTip += "<br/><font color='red'>%s</font>" % self.tr(
"Externally Deleted")
return '<html>' + toolTip + '</html>'
def modelIcon(self):
"""Icon for the opened files model
"""
if self.isNeverSaved(): # never has been saved
icon = "save.png"
elif self._externallyRemoved and self.qutepart.document().isModified():
icon = 'modified-externally-deleted.png'
elif self._externallyRemoved:
icon = "close.png"
elif self._externallyModified and self.qutepart.document().isModified(
):
icon = "modified-externally-modified.png"
elif self._externallyModified:
icon = "modified-externally.png"
elif self.qutepart.document().isModified():
icon = "save.png"
else:
icon = "transparent.png"
return QIcon(":/enkiicons/" + icon)
def invokeGoTo(self):
"""Show GUI dialog, go to line, if user accepted it
"""
line = self.qutepart.cursorPosition[0]
gotoLine, accepted = QInputDialog.getInt(
self, self.tr("Go To Line..."),
self.tr("Enter the line you want to go to:"), line, 1,
len(self.qutepart.lines), 1)
if accepted:
gotoLine -= 1
self.qutepart.cursorPosition = gotoLine, None
self.setFocus()
def printFile(self):
"""Print file
"""
raise NotImplemented()
def _configureEolMode(self, originalText):
"""Detect end of line mode automatically and apply detected mode
"""
modes = set()
for line in originalText.splitlines(True):
if line.endswith('\r\n'):
modes.add('\r\n')
elif line.endswith('\n'):
modes.add('\n')
elif line.endswith('\r'):
modes.add('\r')
if len(modes) == 1: # exactly one
detectedMode = modes.pop()
else:
detectedMode = None
default = self._EOL_CONVERTOR[core.config()["Qutepart"]["EOL"]["Mode"]]
if len(modes) > 1:
message = "%s contains mix of End Of Line symbols. It will be saved with '%s'" % \
(self.filePath(), repr(default))
core.mainWindow().appendMessage(message)
self.qutepart.eol = default
self.qutepart.document().setModified(True)
elif core.config()["Qutepart"]["EOL"]["AutoDetect"]:
if detectedMode is not None:
self.qutepart.eol = detectedMode
else: # empty set, not detected
self.qutepart.eol = default
else: # no mix, no autodetect. Force EOL
if detectedMode is not None and \
detectedMode != default:
message = "%s: End Of Line mode is '%s', but file will be saved with '%s'. " \
"EOL autodetection is disabled in the settings" % \
(self.fileName(), repr(detectedMode), repr(default))
core.mainWindow().appendMessage(message)
self.qutepart.document().setModified(True)
self.qutepart.eol = default
@pyqtSlot()
def _applyQpartSettings(self):
"""Apply qutepart settings
"""
conf = core.config()['Qutepart']
self.qutepart.setFont(
QFont(conf['Font']['Family'], conf['Font']['Size']))
self.qutepart.indentUseTabs = conf['Indentation']['UseTabs']
self.qutepart.indentWidth = conf['Indentation']['Width']
if conf['Edge']['Enabled']:
self.qutepart.lineLengthEdge = conf['Edge']['Column']
else:
self.qutepart.lineLengthEdge = None
self.qutepart.lineLengthEdgeColor = QColor(conf['Edge']['Color'])
self.qutepart.completionEnabled = conf['AutoCompletion']['Enabled']
self.qutepart.completionThreshold = conf['AutoCompletion']['Threshold']
self.qutepart.setLineWrapMode(
QPlainTextEdit.
WidgetWidth if conf['Wrap']['Enabled'] else QPlainTextEdit.NoWrap)
if conf['Wrap']['Mode'] == 'WrapAtWord':
self.qutepart.setWordWrapMode(
QTextOption.WrapAtWordBoundaryOrAnywhere)
elif conf['Wrap']['Mode'] == 'WrapAnywhere':
self.qutepart.setWordWrapMode(QTextOption.WrapAnywhere)
else:
assert 'Invalid wrap mode', conf['Wrap']['Mode']
# EOL is managed by _configureEolMode(). But, if autodetect is disabled, we may apply new value here
if not conf['EOL']['AutoDetect']:
self.qutepart.eol = self._EOL_CONVERTOR[conf['EOL']['Mode']]
# Whitespace visibility is managed by qpartsettings plugin
def eventFilter(self, obj, event):
"""An event filter that looks for focus in events, closing any floating
docks when found."""
# Note: We can't ``def focusInEvent(self, focusEvent)`` since qutepart
# is the focus proxy, meaning this won't be called. Hence, the neeed for
# an event listener.
if (event.type() == QEvent.FocusIn
and (obj == self or obj == self.focusProxy())):
for dock in core.mainWindow().findChildren(DockWidget):
# Close all unpinned docks. The exception: if the Open Files
# dock is waiting for the Ctrl button to be released, keep it
# open; it will be be closed when Ctrl is released.
if not dock.isPinned() and (not getattr(
dock, '_waitForCtrlRelease', False)):
dock._close()
return QWidget.eventFilter(self, obj, event)
class Document(QWidget):
"""
Document is a opened file representation.
It contains file management methods and uses `Qutepart <http://qutepart.rtfd.org/>`_ as an editor widget.
Qutepart is available as ``qutepart`` attribute.
"""
documentDataChanged = pyqtSignal()
"""
documentDataChanged()
**Signal** emitted, when document icon or toolTip has changed
(i.e. document has been modified externally)
"""
_EOL_CONVERTOR = {r'\r\n': '\r\n',
r'\n': '\n',
r'\r': '\r'}
def __init__(self, parentObject, filePath, createNew=False):
"""Create editor and open file.
If file is None or createNew is True, empty not saved file is created
IO Exceptions are not catched, therefore, must be catched on upper level
"""
QWidget.__init__(self, parentObject)
self._neverSaved = filePath is None or createNew
self._filePath = filePath
self._externallyRemoved = False
self._externallyModified = False
# File opening should be implemented in the document classes
self._fileWatcher = _FileWatcher(filePath)
self._fileWatcher.modified.connect(self._onWatcherFileModified)
self._fileWatcher.removed.connect(self._onWatcherFileRemoved)
self.qutepart = Qutepart(self)
self.qutepart.setStyleSheet('QPlainTextEdit {border: 0}')
self.qutepart.userWarning.connect(lambda text: core.mainWindow().statusBar().showMessage(text, 5000))
self._applyQpartSettings()
core.uiSettingsManager().dialogAccepted.connect(self._applyQpartSettings)
layout = QVBoxLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.qutepart)
self.setFocusProxy(self.qutepart)
if not self._neverSaved:
originalText = self._readFile(filePath)
self.qutepart.text = originalText
else:
originalText = ''
# autodetect eol, if need
self._configureEolMode(originalText)
self._tryDetectSyntax()
def _tryDetectSyntax(self):
if len(self.qutepart.lines) > (100 * 1000) and \
self.qutepart.language() is None:
"""Qutepart uses too lot of memory when highlighting really big files
It may crash the editor, so, do not highlight really big files.
But, do not disable highlighting for files, which already was highlighted
"""
return
self.qutepart.detectSyntax(sourceFilePath=self.filePath(),
firstLine=self.qutepart.lines[0])
def terminate(self):
"""Explicytly called destructor
"""
self._fileWatcher.term()
# avoid emitting signals, document shall behave like it is already dead
self.qutepart.document().modificationChanged.disconnect()
self.qutepart.cursorPositionChanged.disconnect() #
self.qutepart.textChanged.disconnect()
self.qutepart.terminate() # stop background highlighting, free memory
@pyqtSlot(bool)
def _onWatcherFileModified(self, modified):
"""File has been modified
"""
self._externallyModified = modified
self.documentDataChanged.emit()
@pyqtSlot(bool)
def _onWatcherFileRemoved(self, isRemoved):
"""File has been removed
"""
self._externallyRemoved = isRemoved
self.documentDataChanged.emit()
def _readFile(self, filePath):
"""Read the file contents.
Shows QMessageBox for UnicodeDecodeError
"""
with open(filePath, 'rb') as openedFile: # Exception is ok, raise it up
self._filePath = os.path.abspath(filePath) # abspath won't fail, if file exists
data = openedFile.read()
self._fileWatcher.setContents(data)
try:
text = str(data, 'utf8')
except UnicodeDecodeError as ex:
QMessageBox.critical(None,
self.tr("Can not decode file"),
filePath + '\n' +
str(ex) +
'\nProbably invalid encoding was set. ' +
'You may corrupt your file, if saved it')
text = str(data, 'utf8', 'replace')
# Strip last EOL. Qutepart adds it when saving file
if text.endswith('\r\n'):
text = text[:-2]
elif text.endswith('\r') or text.endswith('\n'):
text = text[:-1]
return text
def isExternallyModified(self):
"""Check if document's file has been modified externally.
This method does not do any file system access, but only returns cached info
"""
return self._externallyModified
def isExternallyRemoved(self):
"""Check if document's file has been deleted externally.
This method does not do any file system access, but only returns cached info
"""
return self._externallyRemoved
def isNeverSaved(self):
"""Check if document has been created, but never has been saved on disk
"""
return self._neverSaved
def filePath(self):
"""Return the document file absolute path.
``None`` if not set (new document)"""
return self._filePath
def fileName(self):
"""Document file name without a path.
``None`` if not set (new document)"""
if self._filePath:
return os.path.basename(self._filePath)
else:
return None
def setFilePath(self, newPath):
"""Change document file path.
Used when saving first time, or on Save As action
"""
core.workspace().documentClosed.emit(self)
self._filePath = newPath
self._fileWatcher.setPath(newPath)
self._neverSaved = True
core.workspace().documentOpened.emit(self)
core.workspace().currentDocumentChanged.emit(self, self)
def _stripTrailingWhiteSpace(self):
lineHasTrailingSpace = ((line and line[-1].isspace())
for line in self.qutepart.lines)
if any(lineHasTrailingSpace):
with self.qutepart:
for lineNo, line in enumerate(self.qutepart.lines):
if line and line[-1].isspace():
self.qutepart.lines[lineNo] = line.rstrip()
else:
pass # Do not enter with statement, because it causes wrong textChanged signal
def _saveToFs(self, filePath):
"""Low level method. Always saves file, even if not modified
"""
# Create directory
dirPath = os.path.dirname(filePath)
if not os.path.exists(dirPath):
try:
os.makedirs(dirPath)
except OSError as ex:
error = str(ex)
QMessageBox.critical(None,
self.tr("Cannot save file"),
self.tr("Cannot create directory '%s'. Error '%s'." % (dirPath, error)))
return
text = self.qutepart.textForSaving()
# Write file
data = text.encode('utf8')
self._fileWatcher.disable()
try:
with open(filePath, 'wb') as openedFile:
openedFile.write(data)
self._fileWatcher.setContents(data)
except IOError as ex:
QMessageBox.critical(None,
self.tr("Cannot write to file"),
str(ex))
return
finally:
self._fileWatcher.enable()
# Update states
self._neverSaved = False
self._externallyRemoved = False
self._externallyModified = False
self.qutepart.document().setModified(False)
self.documentDataChanged.emit()
if self.qutepart.language() is None:
self._tryDetectSyntax()
def saveFile(self):
"""Save the file to file system.
Show QFileDialog if file name is not known.
Return False, if user cancelled QFileDialog, True otherwise
"""
# Get path
if not self._filePath:
path, _ = QFileDialog.getSaveFileName(self, self.tr('Save file as...'))
if path:
self.setFilePath(path)
else:
return False
if core.config()['Qutepart']['StripTrailingWhitespace']:
self._stripTrailingWhiteSpace()
self._saveToFs(self.filePath())
return True
def saveFileAs(self):
"""Ask for new file name with dialog. Save file
"""
if self._filePath:
default_filename = os.path.basename(self._filePath)
else:
default_filename = ''
path, _ = QFileDialog.getSaveFileName(self, self.tr('Save file as...'), default_filename)
if not path:
return
self.setFilePath(path)
self._saveToFs(path)
def reload(self):
"""Reload the file from the disk
If child class reimplemented this method, it MUST call method of the parent class
for update internal bookkeeping"""
text = self._readFile(self.filePath())
pos = self.qutepart.cursorPosition
self.qutepart.text = text
self._externallyModified = False
self._externallyRemoved = False
self.qutepart.cursorPosition = pos
self.qutepart.centerCursor()
def modelToolTip(self):
"""Tool tip for the opened files model
"""
toolTip = self.filePath()
if toolTip is None:
return None
if self.qutepart.document().isModified():
toolTip += "<br/><font color='blue'>%s</font>" % self.tr("Locally Modified")
if self._externallyModified:
toolTip += "<br/><font color='red'>%s</font>" % self.tr("Externally Modified")
if self._externallyRemoved:
toolTip += "<br/><font color='red'>%s</font>" % self.tr("Externally Deleted")
return '<html>' + toolTip + '</html>'
def modelIcon(self):
"""Icon for the opened files model
"""
if self.isNeverSaved(): # never has been saved
icon = "save.png"
elif self._externallyRemoved and self.qutepart.document().isModified():
icon = 'modified-externally-deleted.png'
elif self._externallyRemoved:
icon = "close.png"
elif self._externallyModified and self.qutepart.document().isModified():
icon = "modified-externally-modified.png"
elif self._externallyModified:
icon = "modified-externally.png"
elif self.qutepart.document().isModified():
icon = "save.png"
else:
icon = "transparent.png"
return QIcon(":/enkiicons/" + icon)
def invokeGoTo(self):
"""Show GUI dialog, go to line, if user accepted it
"""
line = self.qutepart.cursorPosition[0]
gotoLine, accepted = QInputDialog.getInt(self, self.tr("Go To Line..."),
self.tr("Enter the line you want to go to:"),
line, 1, len(self.qutepart.lines), 1)
if accepted:
gotoLine -= 1
self.qutepart.cursorPosition = gotoLine, None
self.setFocus()
def printFile(self):
"""Print file
"""
raise NotImplemented()
def _configureEolMode(self, originalText):
"""Detect end of line mode automatically and apply detected mode
"""
modes = set()
for line in originalText.splitlines(True):
if line.endswith('\r\n'):
modes.add('\r\n')
elif line.endswith('\n'):
modes.add('\n')
elif line.endswith('\r'):
modes.add('\r')
if len(modes) == 1: # exactly one
detectedMode = modes.pop()
else:
detectedMode = None
default = self._EOL_CONVERTOR[core.config()["Qutepart"]["EOL"]["Mode"]]
if len(modes) > 1:
message = "%s contains mix of End Of Line symbols. It will be saved with '%s'" % \
(self.filePath(), repr(default))
core.mainWindow().appendMessage(message)
self.qutepart.eol = default
self.qutepart.document().setModified(True)
elif core.config()["Qutepart"]["EOL"]["AutoDetect"]:
if detectedMode is not None:
self.qutepart.eol = detectedMode
else: # empty set, not detected
self.qutepart.eol = default
else: # no mix, no autodetect. Force EOL
if detectedMode is not None and \
detectedMode != default:
message = "%s: End Of Line mode is '%s', but file will be saved with '%s'. " \
"EOL autodetection is disabled in the settings" % \
(self.fileName(), repr(detectedMode), repr(default))
core.mainWindow().appendMessage(message)
self.qutepart.document().setModified(True)
self.qutepart.eol = default
@pyqtSlot()
def _applyQpartSettings(self):
"""Apply qutepart settings
"""
conf = core.config()['Qutepart']
self.qutepart.setFont(QFont(conf['Font']['Family'], conf['Font']['Size']))
self.qutepart.indentUseTabs = conf['Indentation']['UseTabs']
self.qutepart.indentWidth = conf['Indentation']['Width']
if conf['Edge']['Enabled']:
self.qutepart.lineLengthEdge = conf['Edge']['Column']
else:
self.qutepart.lineLengthEdge = None
self.qutepart.lineLengthEdgeColor = QColor(conf['Edge']['Color'])
self.qutepart.completionEnabled = conf['AutoCompletion']['Enabled']
self.qutepart.completionThreshold = conf['AutoCompletion']['Threshold']
self.qutepart.setLineWrapMode(QPlainTextEdit.WidgetWidth if conf['Wrap']['Enabled'] else QPlainTextEdit.NoWrap)
if conf['Wrap']['Mode'] == 'WrapAtWord':
self.qutepart.setWordWrapMode(QTextOption.WrapAtWordBoundaryOrAnywhere)
elif conf['Wrap']['Mode'] == 'WrapAnywhere':
self.qutepart.setWordWrapMode(QTextOption.WrapAnywhere)
else:
assert 'Invalid wrap mode', conf['Wrap']['Mode']
# EOL is managed by _configureEolMode(). But, if autodetect is disabled, we may apply new value here
if not conf['EOL']['AutoDetect']:
self.qutepart.eol = self._EOL_CONVERTOR[conf['EOL']['Mode']]
class Document(QWidget):
"""
Document is a opened file representation.
It contains file management methods and uses `Qutepart <http://qutepart.rtfd.org/>`_ as an editor widget.
Qutepart is available as ``qutepart`` attribute.
"""
documentDataChanged = pyqtSignal()
"""
documentDataChanged()
**Signal** emitted, when document icon or toolTip has changed
(i.e. document has been modified externally)
"""
_EOL_CONVERTOR = {r'\r\n': '\r\n', r'\n': '\n', r'\r': '\r'}
def __init__(self, parentObject, filePath, createNew=False):
"""Create editor and open file.
If file is None or createNew is True, empty not saved file is created
IO Exceptions are not catched, therefore, must be catched on upper level
"""
QWidget.__init__(self, parentObject)
self._neverSaved = filePath is None or createNew
self._filePath = filePath
self._externallyRemoved = False
self._externallyModified = False
# File opening should be implemented in the document classes
self._fileWatcher = _FileWatcher(filePath)
self._fileWatcher.modified.connect(self._onWatcherFileModified)
self._fileWatcher.removed.connect(self._onWatcherFileRemoved)
self.qutepart = Qutepart(self)
self.qutepart.setStyleSheet('QPlainTextEdit {border: 0}')
self.qutepart.userWarning.connect(
lambda text: core.mainWindow().statusBar().showMessage(text, 5000))
self._applyQpartSettings()
core.uiSettingsManager().dialogAccepted.connect(
self._applyQpartSettings)
layout = QVBoxLayout(self)
layout.setMargin(0)
layout.addWidget(self.qutepart)
self.setFocusProxy(self.qutepart)
if not self._neverSaved:
originalText = self._readFile(filePath)
self.qutepart.text = originalText
else:
originalText = ''
#autodetect eol, if need
self._configureEolMode(originalText)
self._tryDetectSyntax()
def _tryDetectSyntax(self):
if len(self.qutepart.lines) > (100 * 1000) and \
self.qutepart.language() is None:
"""Qutepart uses too lot of memory when highlighting really big files
It may crash the editor, so, do not highlight really big files.
But, do not disable highlighting for files, which already was highlighted
"""
return
self.qutepart.detectSyntax(sourceFilePath=self.filePath(),
firstLine=self.qutepart.lines[0])
def del_(self):
"""Explicytly called destructor
"""
self._fileWatcher.disable()
# avoid emitting signals, document shall behave like it is already dead
self.qutepart.document().modificationChanged.disconnect()
self.qutepart.cursorPositionChanged.disconnect() #
self.qutepart.textChanged.disconnect()
self.qutepart.terminate() # stop background highlighting, free memory
def _onWatcherFileModified(self, modified):
"""File has been modified
"""
self._externallyModified = modified
self.documentDataChanged.emit()
def _onWatcherFileRemoved(self, isRemoved):
"""File has been removed
"""
self._externallyRemoved = isRemoved
self.documentDataChanged.emit()
def _readFile(self, filePath):
"""Read the file contents.
Shows QMessageBox for UnicodeDecodeError
"""
with open(filePath,
'rb') as openedFile: # Exception is ok, raise it up
self._filePath = os.path.abspath(
filePath) # abspath won't fail, if file exists
data = openedFile.read()
self._fileWatcher.setContents(data)
try:
text = unicode(data, 'utf8')
except UnicodeDecodeError, ex:
QMessageBox.critical(
None, self.tr("Can not decode file"),
filePath + '\n' + unicode(str(ex), 'utf8') +
'\nProbably invalid encoding was set. ' +
'You may corrupt your file, if saved it')
text = unicode(data, 'utf8', 'replace')
# Strip last EOL. Qutepart adds it when saving file
if text.endswith('\r\n'):
text = text[:-2]
elif text.endswith('\r') or text.endswith('\n'):
text = text[:-1]
return text