CODEWITHSUNDEEP
pythonpyqtqtextbrowser
alphanumeric
alphanumeric

Reputation: 19329

How to select all the occurrences in QTextBrowser

The code creates QTextBrowser window filled with the lines of text. I would like to select all the words matching "Long Line" How to achieve it?

enter image description here

from PyQt4 import QtCore, QtGui
app = QtGui.QApplication([])

view = QtGui.QTextBrowser() 
for i in range(25):
    view.append(10*('Long Line of text # %004d '%i) )
view.setLineWrapMode(0)

view.find('Long Line')

view.show()
app.exec_()

Upvotes: 3

Views: 830

Answers (1)

robyschek
robyschek

Reputation: 2035

You can use QTextEdit.setExtraSelections:

import sys
from PyQt4.QtGui import (QApplication, QTextEdit, QTextBrowser, QTextCursor,
                         QTextCharFormat, QPalette)

app = QApplication(sys.argv)
view = QTextBrowser()
for i in range(25):
    view.append(10*('Long Line of text # %004d '%i) )
view.setLineWrapMode(0)
line_to_find = 'Long Line'

# get default selection format from view's palette
palette = view.palette()
text_format = QTextCharFormat()
text_format.setBackground(palette.brush(QPalette.Normal, QPalette.Highlight))
text_format.setForeground(palette.brush(QPalette.Normal, QPalette.HighlightedText))

# find all occurrences of the text
doc = view.document()
cur = QTextCursor()
selections = []
while 1:
    cur = doc.find(line_to_find, cur)
    if cur.isNull():
        break
    sel = QTextEdit.ExtraSelection()
    sel.cursor = cur
    sel.format = text_format
    selections.append(sel)
view.setExtraSelections(selections)

view.show()
app.exec_()

And here is the result:

the QTextBrowser on win7

Alternatively try QSyntaxHighlighter.

Upvotes: 3

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