def __init__(self, parent, **kwds):
super().__init__(parent, showLineNumbers=True, **kwds)
# Init filename and name
self._filename = ''
self._name = '<TMP>'
# View settings
self.setShowWhitespace(pyzo.config.view.showWhitespace)
#TODO: self.setViewWrapSymbols(view.showWrapSymbols)
self.setShowLineEndings(pyzo.config.view.showLineEndings)
self.setShowIndentationGuides(pyzo.config.view.showIndentationGuides)
#
self.setWrap(bool(pyzo.config.view.wrap))
self.setHighlightCurrentLine(pyzo.config.view.highlightCurrentLine)
self.setLongLineIndicatorPosition(pyzo.config.view.edgeColumn)
self.setHighlightMatchingBracket(
pyzo.config.view.highlightMatchingBracket)
#TODO: self.setFolding( int(view.codeFolding)*5 )
# bracematch is set in baseTextCtrl, since it also applies to shells
# dito for zoom and tabWidth
# Set line endings to default
self.lineEndings = pyzo.config.settings.defaultLineEndings
# Set encoding to default
self.encoding = 'UTF-8'
# Modification time to test file change
self._modifyTime = 0
self.modificationChanged.connect(self._onModificationChanged)
# To see whether the doc has changed to update the parser.
self.textChanged.connect(self._onModified)
# This timer is used to hide the marker that shows which code is executed
self._showRunCursorTimer = QtCore.QTimer()
# Add context menu (the offset is to prevent accidental auto-clicking)
self._menu = EditorContextMenu(self)
self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.customContextMenuRequested.connect(lambda p: self._menu.popup(
self.mapToGlobal(p) + QtCore.QPoint(0, 3)))
def __init__(self, parent, **kwds):
super().__init__(parent, showLineNumbers = True, **kwds)
# Init filename and name
self._filename = ''
self._name = '<TMP>'
# View settings
self.setShowWhitespace(pyzo.config.view.showWhitespace)
#TODO: self.setViewWrapSymbols(view.showWrapSymbols)
self.setShowLineEndings(pyzo.config.view.showLineEndings)
self.setShowIndentationGuides(pyzo.config.view.showIndentationGuides)
#
self.setWrap(bool(pyzo.config.view.wrap))
self.setHighlightCurrentLine(pyzo.config.view.highlightCurrentLine)
self.setLongLineIndicatorPosition(pyzo.config.view.edgeColumn)
self.setHighlightMatchingBracket(pyzo.config.view.highlightMatchingBracket)
#TODO: self.setFolding( int(view.codeFolding)*5 )
# bracematch is set in baseTextCtrl, since it also applies to shells
# dito for zoom and tabWidth
# Set line endings to default
self.lineEndings = pyzo.config.settings.defaultLineEndings
# Set encoding to default
self.encoding = 'UTF-8'
# Modification time to test file change
self._modifyTime = 0
self.modificationChanged.connect(self._onModificationChanged)
# To see whether the doc has changed to update the parser.
self.textChanged.connect(self._onModified)
# This timer is used to hide the marker that shows which code is executed
self._showRunCursorTimer = QtCore.QTimer()
# Add context menu (the offset is to prevent accidental auto-clicking)
self._menu = EditorContextMenu(self)
self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.customContextMenuRequested.connect(lambda p: self._menu.popup(self.mapToGlobal(p)+QtCore.QPoint(0,3)))
class PyzoEditor(BaseTextCtrl):
# called when dirty changed or filename changed, etc
somethingChanged = QtCore.Signal()
def __init__(self, parent, **kwds):
super().__init__(parent, showLineNumbers = True, **kwds)
# Init filename and name
self._filename = ''
self._name = '<TMP>'
# View settings
self.setShowWhitespace(pyzo.config.view.showWhitespace)
#TODO: self.setViewWrapSymbols(view.showWrapSymbols)
self.setShowLineEndings(pyzo.config.view.showLineEndings)
self.setShowIndentationGuides(pyzo.config.view.showIndentationGuides)
#
self.setWrap(bool(pyzo.config.view.wrap))
self.setHighlightCurrentLine(pyzo.config.view.highlightCurrentLine)
self.setLongLineIndicatorPosition(pyzo.config.view.edgeColumn)
self.setHighlightMatchingBracket(pyzo.config.view.highlightMatchingBracket)
#TODO: self.setFolding( int(view.codeFolding)*5 )
# bracematch is set in baseTextCtrl, since it also applies to shells
# dito for zoom and tabWidth
# Set line endings to default
self.lineEndings = pyzo.config.settings.defaultLineEndings
# Set encoding to default
self.encoding = 'UTF-8'
# Modification time to test file change
self._modifyTime = 0
self.modificationChanged.connect(self._onModificationChanged)
# To see whether the doc has changed to update the parser.
self.textChanged.connect(self._onModified)
# This timer is used to hide the marker that shows which code is executed
self._showRunCursorTimer = QtCore.QTimer()
# Add context menu (the offset is to prevent accidental auto-clicking)
self._menu = EditorContextMenu(self)
self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.customContextMenuRequested.connect(lambda p: self._menu.popup(self.mapToGlobal(p)+QtCore.QPoint(0,3)))
## Properties
@property
def name(self):
return self._name
@property
def filename(self):
return self._filename
@property
def lineEndings(self):
"""
Line-endings style of this file. Setter accepts machine-readable (e.g. '\r') and human-readable (e.g. 'CR') input
"""
return self._lineEndings
@lineEndings.setter
def lineEndings(self,value):
if value in ('\r','\n','\r\n'):
self._lineEndings = value
return
try:
self._lineEndings = {'CR': '\r', 'LF': '\n', 'CRLF': '\r\n'}[value]
except KeyError:
raise ValueError('Invalid line endings style %r' % value)
@property
def lineEndingsHumanReadable(self):
"""
Current line-endings style, human readable (e.g. 'CR')
"""
return {'\r': 'CR', '\n': 'LF', '\r\n': 'CRLF'}[self.lineEndings]
@property
def encoding(self):
""" Encoding used to convert the text of this file to bytes.
"""
return self._encoding
@encoding.setter
def encoding(self, value):
# Test given value, correct name if it exists
try:
c = codecs.lookup(value)
value = c.name
except Exception:
value = codecs.lookup('UTF-8').name
# Store
self._encoding = value
##
def justifyText(self):
""" Overloaded version of justifyText to make it use our
configurable justificationwidth.
"""
super().justifyText(pyzo.config.settings.justificationWidth)
def showRunCursor(self, cursor):
"""
Momentarily highlight a piece of code to show that this is being executed
"""
extraSelection = QtWidgets.QTextEdit.ExtraSelection()
extraSelection.cursor = cursor
extraSelection.format.setBackground(QtCore.Qt.gray)
self.setExtraSelections([extraSelection])
self._showRunCursorTimer.singleShot(200, lambda: self.setExtraSelections([]))
def id(self):
""" Get an id of this editor. This is the filename,
or for tmp files, the name. """
if self._filename:
return self._filename
else:
return self._name
def focusInEvent(self, event):
""" Test whether the file has been changed 'behind our back'
"""
# Act normally to the focus event
BaseTextCtrl.focusInEvent(self, event)
# Test file change
self.testWhetherFileWasChanged()
def testWhetherFileWasChanged(self):
""" testWhetherFileWasChanged()
Test to see whether the file was changed outside our backs,
and let the user decide what to do.
Returns True if it was changed.
"""
# get the path
path = self._filename
if not os.path.isfile(path):
# file is deleted from the outside
return
# test the modification time...
mtime = os.path.getmtime(path)
if mtime != self._modifyTime:
# ask user
dlg = QtWidgets.QMessageBox(self)
dlg.setWindowTitle('File was changed')
dlg.setText("File has been modified outside of the editor:\n"+
self._filename)
dlg.setInformativeText("Do you want to reload?")
t=dlg.addButton("Reload", QtWidgets.QMessageBox.AcceptRole) #0
dlg.addButton("Keep this version", QtWidgets.QMessageBox.RejectRole) #1
dlg.setDefaultButton(t)
# whatever the result, we will reset the modified time
self._modifyTime = os.path.getmtime(path)
# get result and act
result = dlg.exec_()
if result == QtWidgets.QMessageBox.AcceptRole:
self.reload()
else:
pass # when cancelled or explicitly said, do nothing
# Return that indeed the file was changes
return True
def _onModificationChanged(self,changed):
"""Handler for the modificationChanged signal. Emit somethingChanged
for the editorStack to update the modification notice."""
self.somethingChanged.emit()
def _onModified(self):
pyzo.parser.parseThis(self)
def dragMoveEvent(self, event):
""" Otherwise cursor can get stuck.
https://bitbucket.org/iep-project/iep/issue/252
https://qt-project.org/forums/viewthread/3180
"""
if event.mimeData().hasUrls():
event.acceptProposedAction()
else:
BaseTextCtrl.dropEvent(self, event)
def dropEvent(self, event):
""" Drop files in the list. """
if event.mimeData().hasUrls():
# file: let the editorstack do the work.
pyzo.editors.dropEvent(event)
else:
# text: act normal
BaseTextCtrl.dropEvent(self, event)
def showEvent(self, event=None):
""" Capture show event to change title. """
# Act normally
if event:
BaseTextCtrl.showEvent(self, event)
# Make parser update
pyzo.parser.parseThis(self)
def setTitleInMainWindow(self):
""" set the title text in the main window to show filename. """
# compose title
name, path = self._name, self._filename
if path:
pyzo.main.setMainTitle(path)
else:
pyzo.main.setMainTitle(name)
def save(self, filename=None):
""" Save the file. No checking is done. """
# get filename
if filename is None:
filename = self._filename
if not filename:
raise ValueError("No filename specified, and no filename known.")
# Test whether it was changed without us knowing. If so, dont save now.
if self.testWhetherFileWasChanged():
return
# Get text and remember where we are
text = self.toPlainText()
cursor = self.textCursor()
linenr = cursor.blockNumber() + 1
index = cursor.positionInBlock()
scroll = self.verticalScrollBar().value()
# Convert line endings (optionally remove trailing whitespace
if pyzo.config.settings.removeTrailingWhitespaceWhenSaving:
lines = [line.rstrip() for line in text.split('\n')]
if lines[-1]:
lines.append('') # Ensure the file ends in an empty line
text = self.lineEndings.join(lines)
self.setPlainText(text)
# Go back to where we were
cursor = self.textCursor()
cursor.movePosition(cursor.Start) # move to begin of the document
cursor.movePosition(cursor.NextBlock,n=linenr-1) # n blocks down
index = min(index, cursor.block().length()-1)
cursor.movePosition(cursor.Right,n=index) # n chars right
self.setTextCursor(cursor)
self.verticalScrollBar().setValue(scroll)
else:
text = text.replace('\n', self.lineEndings)
# Make bytes
bb = text.encode(self.encoding)
# Store
f = open(filename, 'wb')
try:
f.write(bb)
finally:
f.close()
# Update stats
self._filename = normalizePath( filename )
self._name = os.path.split(self._filename)[1]
self.document().setModified(False)
self._modifyTime = os.path.getmtime(self._filename)
# update title (in case of a rename)
self.setTitleInMainWindow()
# allow item to update its texts (no need: onModifiedChanged does this)
#self.somethingChanged.emit()
def reload(self):
""" Reload text using the self._filename.
We do not have a load method; we first try to load the file
and only when we succeed create an editor to show it in...
This method is only for reloading in case the file was changed
outside of the editor. """
# We can only load if the filename is known
if not self._filename:
return
filename = self._filename
# Remember where we are
cursor = self.textCursor()
linenr = cursor.blockNumber() + 1
# Load file (as bytes)
with open(filename, 'rb') as f:
bb = f.read()
# Convert to text
text = bb.decode('UTF-8')
# Process line endings (before setting the text)
self.lineEndings= determineLineEnding(text)
# Set text
self.setPlainText(text)
self.document().setModified(False)
# Go where we were (approximately)
self.gotoLine(linenr)
def deleteLines(self):
cursor = self.textCursor()
# Find start and end of selection
start = cursor.selectionStart()
end = cursor.selectionEnd()
# Expand selection: from start of first block to start of next block
cursor.setPosition(start)
cursor.movePosition(cursor.StartOfBlock)
cursor.setPosition(end, cursor.KeepAnchor)
cursor.movePosition(cursor.NextBlock, cursor.KeepAnchor)
cursor.removeSelectedText()
def duplicateLines(self):
cursor = self.textCursor()
# Find start and end of selection
start = cursor.selectionStart()
end = cursor.selectionEnd()
# Expand selection: from start of first block to start of next block
cursor.setPosition(start)
cursor.movePosition(cursor.StartOfBlock)
cursor.setPosition(end, cursor.KeepAnchor)
cursor.movePosition(cursor.NextBlock, cursor.KeepAnchor)
text = cursor.selectedText()
cursor.setPosition(start)
cursor.movePosition(cursor.StartOfBlock)
cursor.insertText(text)
def commentCode(self):
"""
Comment the lines that are currently selected
"""
indents = []
def getIndent(cursor):
text = cursor.block().text().rstrip()
if text:
indents.append(len(text) - len(text.lstrip()))
def commentBlock(cursor):
cursor.setPosition(cursor.block().position() + minindent)
cursor.insertText('# ')
self.doForSelectedBlocks(getIndent)
minindent = min(indents) if indents else 0
self.doForSelectedBlocks(commentBlock)
def uncommentCode(self):
"""
Uncomment the lines that are currently selected
"""
#TODO: this should not be applied to lines that are part of a multi-line string
#Define the uncomment function to be applied to all blocks
def uncommentBlock(cursor):
"""
Find the first # on the line; if there is just whitespace before it,
remove the # and if it is followed by a space remove the space, too
"""
text = cursor.block().text()
commentStart = text.find('#')
if commentStart == -1:
return #No comment on this line
if text[:commentStart].strip() != '':
return #Text before the #
#Move the cursor to the beginning of the comment
cursor.setPosition(cursor.block().position() + commentStart)
cursor.deleteChar()
if text[commentStart:].startswith('# '):
cursor.deleteChar()
#Apply this function to all blocks
self.doForSelectedBlocks(uncommentBlock)
def gotoDef(self):
"""
Goto the definition for the word under the cursor
"""
# Get name of object to go to
cursor = self.textCursor()
if not cursor.hasSelection():
cursor.select(cursor.WordUnderCursor)
word = cursor.selection().toPlainText()
# Send the open command to the shell
s = pyzo.shells.getCurrentShell()
if s is not None:
if word and word.isidentifier():
s.executeCommand('open %s\n'%word)
else:
s.write('Invalid identifier %r\n' % word)
## Introspection processing methods
def processCallTip(self, cto):
""" Processes a calltip request using a CallTipObject instance.
"""
# Try using buffer first
if cto.tryUsingBuffer():
return
# Try obtaining calltip from the source
sig = pyzo.parser.getFictiveSignature(cto.name, self, True)
if sig:
# Done
cto.finish(sig)
else:
# Try the shell
shell = pyzo.shells.getCurrentShell()
if shell:
shell.processCallTip(cto)
def processAutoComp(self, aco):
""" Processes an autocomp request using an AutoCompObject instance.
"""
# Try using buffer first
if aco.tryUsingBuffer():
return
# Init name to poll by remote process (can be changed!)
nameForShell = aco.name
# Get normal fictive namespace
fictiveNS = pyzo.parser.getFictiveNameSpace(self)
fictiveNS = set(fictiveNS)
# Add names
if not aco.name:
# "root" names
aco.addNames(fictiveNS)
# imports
importNames, importLines = pyzo.parser.getFictiveImports(self)
aco.addNames(importNames)
else:
# Prepare list of class names to check out
classNames = [aco.name]
handleSelf = True
# Unroll supers
while classNames:
className = classNames.pop(0)
if not className:
continue
if handleSelf or (className in fictiveNS):
# Only the self list (only first iter)
fictiveClass = pyzo.parser.getFictiveClass(
className, self, handleSelf)
handleSelf = False
if fictiveClass:
aco.addNames( fictiveClass.members )
classNames.extend(fictiveClass.supers)
else:
nameForShell = className
break
# If there's a shell, let it finish the autocompletion
shell = pyzo.shells.getCurrentShell()
if shell:
aco.name = nameForShell # might be the same or a base class
shell.processAutoComp(aco)
else:
# Otherwise we finish it ourselves
aco.finish()
class PyzoEditor(BaseTextCtrl):
# called when dirty changed or filename changed, etc
somethingChanged = QtCore.Signal()
def __init__(self, parent, **kwds):
super().__init__(parent, showLineNumbers=True, **kwds)
# Init filename and name
self._filename = ''
self._name = '<TMP>'
# View settings
self.setShowWhitespace(pyzo.config.view.showWhitespace)
#TODO: self.setViewWrapSymbols(view.showWrapSymbols)
self.setShowLineEndings(pyzo.config.view.showLineEndings)
self.setShowIndentationGuides(pyzo.config.view.showIndentationGuides)
#
self.setWrap(bool(pyzo.config.view.wrap))
self.setHighlightCurrentLine(pyzo.config.view.highlightCurrentLine)
self.setLongLineIndicatorPosition(pyzo.config.view.edgeColumn)
self.setHighlightMatchingBracket(
pyzo.config.view.highlightMatchingBracket)
#TODO: self.setFolding( int(view.codeFolding)*5 )
# bracematch is set in baseTextCtrl, since it also applies to shells
# dito for zoom and tabWidth
# Set line endings to default
self.lineEndings = pyzo.config.settings.defaultLineEndings
# Set encoding to default
self.encoding = 'UTF-8'
# Modification time to test file change
self._modifyTime = 0
self.modificationChanged.connect(self._onModificationChanged)
# To see whether the doc has changed to update the parser.
self.textChanged.connect(self._onModified)
# This timer is used to hide the marker that shows which code is executed
self._showRunCursorTimer = QtCore.QTimer()
# Add context menu (the offset is to prevent accidental auto-clicking)
self._menu = EditorContextMenu(self)
self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.customContextMenuRequested.connect(lambda p: self._menu.popup(
self.mapToGlobal(p) + QtCore.QPoint(0, 3)))
## Properties
@property
def name(self):
return self._name
@property
def filename(self):
return self._filename
@property
def lineEndings(self):
"""
Line-endings style of this file. Setter accepts machine-readable (e.g. '\r') and human-readable (e.g. 'CR') input
"""
return self._lineEndings
@lineEndings.setter
def lineEndings(self, value):
if value in ('\r', '\n', '\r\n'):
self._lineEndings = value
return
try:
self._lineEndings = {'CR': '\r', 'LF': '\n', 'CRLF': '\r\n'}[value]
except KeyError:
raise ValueError('Invalid line endings style %r' % value)
@property
def lineEndingsHumanReadable(self):
"""
Current line-endings style, human readable (e.g. 'CR')
"""
return {'\r': 'CR', '\n': 'LF', '\r\n': 'CRLF'}[self.lineEndings]
@property
def encoding(self):
""" Encoding used to convert the text of this file to bytes.
"""
return self._encoding
@encoding.setter
def encoding(self, value):
# Test given value, correct name if it exists
try:
c = codecs.lookup(value)
value = c.name
except Exception:
value = codecs.lookup('UTF-8').name
# Store
self._encoding = value
##
def justifyText(self):
""" Overloaded version of justifyText to make it use our
configurable justificationwidth.
"""
super().justifyText(pyzo.config.settings.justificationWidth)
def showRunCursor(self, cursor):
"""
Momentarily highlight a piece of code to show that this is being executed
"""
extraSelection = QtWidgets.QTextEdit.ExtraSelection()
extraSelection.cursor = cursor
extraSelection.format.setBackground(QtCore.Qt.gray)
self.setExtraSelections([extraSelection])
self._showRunCursorTimer.singleShot(
200, lambda: self.setExtraSelections([]))
def id(self):
""" Get an id of this editor. This is the filename,
or for tmp files, the name. """
if self._filename:
return self._filename
else:
return self._name
def focusInEvent(self, event):
""" Test whether the file has been changed 'behind our back'
"""
# Act normally to the focus event
BaseTextCtrl.focusInEvent(self, event)
# Test file change
self.testWhetherFileWasChanged()
def testWhetherFileWasChanged(self):
""" testWhetherFileWasChanged()
Test to see whether the file was changed outside our backs,
and let the user decide what to do.
Returns True if it was changed.
"""
# get the path
path = self._filename
if not os.path.isfile(path):
# file is deleted from the outside
return
# test the modification time...
mtime = os.path.getmtime(path)
if mtime != self._modifyTime:
# ask user
dlg = QtWidgets.QMessageBox(self)
dlg.setWindowTitle('File was changed')
dlg.setText("File has been modified outside of the editor:\n" +
self._filename)
dlg.setInformativeText("Do you want to reload?")
t = dlg.addButton("Reload", QtWidgets.QMessageBox.AcceptRole) #0
dlg.addButton("Keep this version",
QtWidgets.QMessageBox.RejectRole) #1
dlg.setDefaultButton(t)
# whatever the result, we will reset the modified time
self._modifyTime = os.path.getmtime(path)
# get result and act
result = dlg.exec_()
if result == QtWidgets.QMessageBox.AcceptRole:
self.reload()
else:
pass # when cancelled or explicitly said, do nothing
# Return that indeed the file was changes
return True
def _onModificationChanged(self, changed):
"""Handler for the modificationChanged signal. Emit somethingChanged
for the editorStack to update the modification notice."""
self.somethingChanged.emit()
def _onModified(self):
pyzo.parser.parseThis(self)
def dragMoveEvent(self, event):
""" Otherwise cursor can get stuck.
https://bitbucket.org/iep-project/iep/issue/252
https://qt-project.org/forums/viewthread/3180
"""
if event.mimeData().hasUrls():
event.acceptProposedAction()
else:
BaseTextCtrl.dropEvent(self, event)
def dropEvent(self, event):
""" Drop files in the list. """
if event.mimeData().hasUrls():
# file: let the editorstack do the work.
pyzo.editors.dropEvent(event)
else:
# text: act normal
BaseTextCtrl.dropEvent(self, event)
def showEvent(self, event=None):
""" Capture show event to change title. """
# Act normally
if event:
BaseTextCtrl.showEvent(self, event)
# Make parser update
pyzo.parser.parseThis(self)
def setTitleInMainWindow(self):
""" set the title text in the main window to show filename. """
# compose title
name, path = self._name, self._filename
if path:
pyzo.main.setMainTitle(path)
else:
pyzo.main.setMainTitle(name)
def save(self, filename=None):
""" Save the file. No checking is done. """
# get filename
if filename is None:
filename = self._filename
if not filename:
raise ValueError("No filename specified, and no filename known.")
# Test whether it was changed without us knowing. If so, dont save now.
if self.testWhetherFileWasChanged():
return
# Get text and remember where we are
text = self.toPlainText()
cursor = self.textCursor()
linenr = cursor.blockNumber() + 1
index = cursor.positionInBlock()
scroll = self.verticalScrollBar().value()
# Convert line endings (optionally remove trailing whitespace
if pyzo.config.settings.removeTrailingWhitespaceWhenSaving:
lines = [line.rstrip() for line in text.split('\n')]
if lines[-1]:
lines.append('') # Ensure the file ends in an empty line
text = self.lineEndings.join(lines)
self.setPlainText(text)
# Go back to where we were
cursor = self.textCursor()
cursor.movePosition(cursor.Start) # move to begin of the document
cursor.movePosition(cursor.NextBlock,
n=linenr - 1) # n blocks down
index = min(index, cursor.block().length() - 1)
cursor.movePosition(cursor.Right, n=index) # n chars right
self.setTextCursor(cursor)
self.verticalScrollBar().setValue(scroll)
else:
text = text.replace('\n', self.lineEndings)
# Make bytes
bb = text.encode(self.encoding)
# Store
f = open(filename, 'wb')
try:
f.write(bb)
finally:
f.close()
# Update stats
self._filename = normalizePath(filename)
self._name = os.path.split(self._filename)[1]
self.document().setModified(False)
self._modifyTime = os.path.getmtime(self._filename)
# update title (in case of a rename)
self.setTitleInMainWindow()
# allow item to update its texts (no need: onModifiedChanged does this)
#self.somethingChanged.emit()
def reload(self):
""" Reload text using the self._filename.
We do not have a load method; we first try to load the file
and only when we succeed create an editor to show it in...
This method is only for reloading in case the file was changed
outside of the editor. """
# We can only load if the filename is known
if not self._filename:
return
filename = self._filename
# Remember where we are
cursor = self.textCursor()
linenr = cursor.blockNumber() + 1
# Load file (as bytes)
with open(filename, 'rb') as f:
bb = f.read()
# Convert to text
text = bb.decode('UTF-8')
# Process line endings (before setting the text)
self.lineEndings = determineLineEnding(text)
# Set text
self.setPlainText(text)
self.document().setModified(False)
# Go where we were (approximately)
self.gotoLine(linenr)
def deleteLines(self):
cursor = self.textCursor()
# Find start and end of selection
start = cursor.selectionStart()
end = cursor.selectionEnd()
# Expand selection: from start of first block to start of next block
cursor.setPosition(start)
cursor.movePosition(cursor.StartOfBlock)
cursor.setPosition(end, cursor.KeepAnchor)
cursor.movePosition(cursor.NextBlock, cursor.KeepAnchor)
cursor.removeSelectedText()
def duplicateLines(self):
cursor = self.textCursor()
# Find start and end of selection
start = cursor.selectionStart()
end = cursor.selectionEnd()
# Expand selection: from start of first block to start of next block
cursor.setPosition(start)
cursor.movePosition(cursor.StartOfBlock)
cursor.setPosition(end, cursor.KeepAnchor)
cursor.movePosition(cursor.NextBlock, cursor.KeepAnchor)
text = cursor.selectedText()
cursor.setPosition(start)
cursor.movePosition(cursor.StartOfBlock)
cursor.insertText(text)
def commentCode(self):
"""
Comment the lines that are currently selected
"""
indents = []
def getIndent(cursor):
text = cursor.block().text().rstrip()
if text:
indents.append(len(text) - len(text.lstrip()))
def commentBlock(cursor):
cursor.setPosition(cursor.block().position() + minindent)
cursor.insertText('# ')
self.doForSelectedBlocks(getIndent)
minindent = min(indents) if indents else 0
self.doForSelectedBlocks(commentBlock)
def uncommentCode(self):
"""
Uncomment the lines that are currently selected
"""
#TODO: this should not be applied to lines that are part of a multi-line string
#Define the uncomment function to be applied to all blocks
def uncommentBlock(cursor):
"""
Find the first # on the line; if there is just whitespace before it,
remove the # and if it is followed by a space remove the space, too
"""
text = cursor.block().text()
commentStart = text.find('#')
if commentStart == -1:
return #No comment on this line
if text[:commentStart].strip() != '':
return #Text before the #
#Move the cursor to the beginning of the comment
cursor.setPosition(cursor.block().position() + commentStart)
cursor.deleteChar()
if text[commentStart:].startswith('# '):
cursor.deleteChar()
#Apply this function to all blocks
self.doForSelectedBlocks(uncommentBlock)
def gotoDef(self):
"""
Goto the definition for the word under the cursor
"""
# Get name of object to go to
cursor = self.textCursor()
if not cursor.hasSelection():
cursor.select(cursor.WordUnderCursor)
word = cursor.selection().toPlainText()
# Send the open command to the shell
s = pyzo.shells.getCurrentShell()
if s is not None:
if word and word.isidentifier():
s.executeCommand('open %s\n' % word)
else:
s.write('Invalid identifier %r\n' % word)
## Introspection processing methods
def processCallTip(self, cto):
""" Processes a calltip request using a CallTipObject instance.
"""
# Try using buffer first
if cto.tryUsingBuffer():
return
# Try obtaining calltip from the source
sig = pyzo.parser.getFictiveSignature(cto.name, self, True)
if sig:
# Done
cto.finish(sig)
else:
# Try the shell
shell = pyzo.shells.getCurrentShell()
if shell:
shell.processCallTip(cto)
def processAutoComp(self, aco):
""" Processes an autocomp request using an AutoCompObject instance.
"""
# Try using buffer first
if aco.tryUsingBuffer():
return
# Init name to poll by remote process (can be changed!)
nameForShell = aco.name
# Get normal fictive namespace
fictiveNS = pyzo.parser.getFictiveNameSpace(self)
fictiveNS = set(fictiveNS)
# Add names
if not aco.name:
# "root" names
aco.addNames(fictiveNS)
# imports
importNames, importLines = pyzo.parser.getFictiveImports(self)
aco.addNames(importNames)
else:
# Prepare list of class names to check out
classNames = [aco.name]
handleSelf = True
# Unroll supers
while classNames:
className = classNames.pop(0)
if not className:
continue
if handleSelf or (className in fictiveNS):
# Only the self list (only first iter)
fictiveClass = pyzo.parser.getFictiveClass(
className, self, handleSelf)
handleSelf = False
if fictiveClass:
aco.addNames(fictiveClass.members)
classNames.extend(fictiveClass.supers)
else:
nameForShell = className
break
# If there's a shell, let it finish the autocompletion
shell = pyzo.shells.getCurrentShell()
if shell:
aco.name = nameForShell # might be the same or a base class
shell.processAutoComp(aco)
else:
# Otherwise we finish it ourselves
aco.finish()