/Python/Pyqt highlight all occurrences of selected word qt

Pyqt highlight all occurrences of selected word qt

from PyQt4 import QtGui
from PyQt4 import QtCore

class MyHighlighter(QtGui.QTextEdit):
    def __init__(self, parent=None):
        super(MyHighlighter, self).__init__(parent)
        # Setup the text editor
        text = """In this text I want to highlight this word and only this word.\n""" +\
        """Any other word shouldn't be highlighted"""
        self.setText(text)
        cursor = self.textCursor()
        # Setup the desired format for matches
        format = QtGui.QTextCharFormat()
        format.setBackground(QtGui.QBrush(QtGui.QColor("red")))
        # Setup the regex engine
        pattern = "word"
        regex = QtCore.QRegExp(pattern)
        # Process the displayed document
        pos = 0
        index = regex.indexIn(self.toPlainText(), pos)
        while (index != -1):
            # Select the matched text and apply the desired format
            cursor.setPosition(index)
            cursor.movePosition(QtGui.QTextCursor.EndOfWord, 1)
            cursor.mergeCharFormat(format)
            # Move to the next match
            pos = index + regex.matchedLength()
            index = regex.indexIn(self.toPlainText(), pos)

if __name__ == "__main__":
    import sys
    a = QtGui.QApplication(sys.argv)
    t = MyHighlighter()
    t.show()
    sys.exit(a.exec_())

Source: stackoverflow.com

Similar codes

0 vote205 views1 answer
Python export 16 bit tiff
Python
0 vote222 views1 answer
Python urlparse get domain
Python
0 vote208 views1 answer
Install python 3.6 ubuntu 16.04
Python
16 votes209 views6 answers
Django forms
Python
0 vote209 views1 answer
The following packages have unmet dependencies python3-tornado
Python
0 vote192 views1 answer
Python default parameters depend on other paramters
Python
0 vote212 views1 answer
"jupyter (notebook OR lab)" ipynb "not trusted"
Python
0 vote224 views1 answer
Tf.get_variable initializer
Python
1 vote216 views1 answer
Matplotlib ax.annotate color of the arrow
Python
1 vote198 views1 answer
How to set the location on a pygame window
Python