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# vimode -- Vi Mode package for QPlainTextEdit
#
# Copyright (c) 2012 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.
"""
Normal ViMode.
"""
import re
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QTextCursor
from . import handlerbase
commands = []
class NormalMode(handlerbase.Handler):
def __init__(self, vimode):
super(NormalMode, self).__init__(vimode)
self._command = []
self._count = 0
def enter(self):
self.vimode.textEdit().setCursorWidth(0)
def updateCursorPosition(self):
cursor = self.textCursor()
if cursor.hasSelection() and cursor.position() > cursor.anchor():
cursor.clearSelection()
cursor.movePosition(QTextCursor.PreviousCharacter, QTextCursor.KeepAnchor)
else:
cursor.clearSelection()
cursor.movePosition(QTextCursor.NextCharacter, QTextCursor.KeepAnchor)
self.vimode.drawCursor(cursor)
def handleKeyPress(self, ev):
# is a number being entered?
if not self._command and Qt.Key_0 <= ev.key() <= Qt.Key_9:
self._count *= 10
self._count += ev.key() - Qt.Key_0
return True
# backspace?
if ev.key() == Qt.Key_Backspace:
if self._command:
# remove last key typed
del self._command[-1]
else:
self._count = 0
return True
# TEMP
if ev.text():
self._command.append(ev.text())
cmd = ''.join(self._command)
for s, f in commands:
if re.compile(s).match(cmd):
f(self)
self._count = 0
self._command = []
return True
return True
def command(cmds, count=True, set_cursor=True):
def decorator(func):
def wrapper(self):
cursor = self.textCursor()
if count:
for i in range(max(1, self._count)):
func(self, cursor)
else:
func(self, cursor)
if set_cursor:
self.setTextCursor(cursor)
for c in cmds:
commands.append((c, wrapper))
return decorator
@command(['h', '<left>'])
def move_left(self, cursor):
if cursor.position() > cursor.block().position():
cursor.movePosition(QTextCursor.PreviousCharacter)
@command(['l', '<right>'])
def move_right(self, cursor):
if cursor.position() < cursor.block().position() + cursor.block().length() - 2:
cursor.movePosition(QTextCursor.NextCharacter)
@command('i', set_cursor=False)
def insert_mode(self, cursor):
self.setInsertMode()
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