Get Plain text from a QLabel with Rich text

10
votes

I have a QLabel that contains rich text.
I want to extract just the actual (visible) 'text' from the QLabel, and none of the code for formatting.
I essentially need a function similiar to the '.toPlainText' method of other Qt Widgets.

I can not simply call .text() and string manipulate away the html tags as suggested in this thread Get plain text from QString with HTML tags, since the returned QString contains all the <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd"> nonsense.

How do I extract the plain text?

(I'm open to any method, even if indirect. eg; Pre-existing functions that convert html to plain text)

Thanks!

Specs:
python 2.7.2
PyQt4
Windows 7

2
pythonqtpyqtpyqt4qlabel
I've not tried it myself, but it looks like QTextCodec is what you need (documentation at developer.qt.nokia.com/doc/qt-4.8/qtextcodec.html). – TonyK
RTF doesn't seem to be a supported encoding (unless I'm missing something). Never mind, I've found a messy work-around – Anti Earth
Can't you just treat Qt Rich Text as html? The Qt document here (doc.qt.nokia.com/4.7-snapshot/qml-text.html) says: "Rich text is defined using HTML-style markup." – TonyK
Yea! (Is html supported by QTextCodec? I'm just going to assume so, since it's only logical if supported by the GUI framework. I'm not very knowledgeable in this whole 'mark-up',text format business! Sorry.) – Anti Earth

2 Answers

18
votes

Use a QTextDocument to do the conversion:

doc = QtGui.QTextDocument()
doc.setHtml(label.text())
text = doc.toPlainText()
2
votes

Here's a messy work around (for python - PyQt)

def Extract_PlainText(label):
    Rtf_text = label.text()
    Temp_Obj = QtGui.QTextEdit()
    Temp_Obj.setText(Rtf_text)
    Plain_text = Temp_Obj.toPlainText()
    del Temp_Obj
    return Plain_text

Inspired by http://bytes.com/topic/net/answers/707370-convert-rtf-plain-text