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# -*- coding: utf-8 -*-
"""
Contains the python indenter.
"""
from pyqode.qt import QtGui
from pyqode.core.modes import IndenterMode
class PyIndenterMode(IndenterMode):
"""
Extends the core indenter to add the ability to always indent the whole
line instead of inserting a tab at the cursor position. This behaviour can
be turned off at runtime by setting :attr:`tab_always_indent` to False.
"""
@property
def tab_always_indent(self):
"""
When this flag is set to True, any call to indent will indent the whole
line instead of inserting a tab at the cursor position.
"""
return self._tab_always_indent
@tab_always_indent.setter
def tab_always_indent(self, value):
self._tab_always_indent = value
if self.editor:
for c in self.editor.clones:
try:
c.modes.get(self.__class__).tab_always_indent = value
except KeyError:
pass
def __init__(self):
super(PyIndenterMode, self).__init__()
self._tab_always_indent = None
self.tab_always_indent = True
def indent(self):
"""
Performs an indentation
"""
if not self.tab_always_indent:
super(PyIndenterMode, self).indent()
else:
cursor = self.editor.textCursor()
assert isinstance(cursor, QtGui.QTextCursor)
if cursor.hasSelection():
self.indent_selection(cursor)
else:
# simply insert indentation at the cursor position
tab_len = self.editor.tab_length
cursor.beginEditBlock()
if self.editor.use_spaces_instead_of_tabs:
cursor.insertText(tab_len * " ")
else:
cursor.insertText('\t')
cursor.endEditBlock()
self.editor.setTextCursor(cursor)
def unindent(self):
"""
Performs an un-indentation
"""
if self.tab_always_indent:
cursor = self.editor.textCursor()
if not cursor.hasSelection():
cursor.select(cursor.LineUnderCursor)
self.unindent_selection(cursor)
else:
super(PyIndenterMode, self).unindent()
def clone_settings(self, original):
self.tab_always_indent = original.tab_always_indent
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