manuelmacha

from PyQt4 import QtGui, QtCore

class TextEdit(QtGui.QTextEdit):
    '''
    QTextEdit extended with a signal 'lineNumbersChanged' which gets triggered when the line-numbers of the visible text change.
    Such functionality already exists for QPlainTextEdit via firstVisibleBlock().blockNumber() and lastVisibleBlock().blockNumber()
    However these functions are not accessible using QTextEdit and PyQt.
    The signal can be used to update custom widgets that compliment the QTextEdit such as lineNumberWidgets or miniMapWidgets.
    '''