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Thread: QSyntaxHighlighter for rows inside a table inside a QTextEdit

  1. #1
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    Question QSyntaxHighlighter for rows inside a table inside a QTextEdit

    Hello guys, I fail to find how to make http://doc.qt.io/qt-4.8/QSyntaxHighlighter works in an HTML table inside a QtextEdit.

    I have something like this:

    jUkYQwSLSQenk3tZt9mtUg.png

    And I am wondering how to hightlight text in the middle column. Specifically rules like:

    Highlight the first letter if the text doesn't starts with an upper.
    Highlight the entire row if the text doesn't ends in the next symbols: ?!.

    I tried the next code for it (Not C++, it's PyQt5) and it got close to what I want to do, but it works for the entire document, doesn't differenciate the rows on the table.
    I'm lost on how to tell the program that it should only apply rules for an html Cell on the 2nd column of the table and not the first column.

    Qt Code:
    1. self.highlighter = Highlighter(self.my_lineedit.document())
    2.  
    3. class Highlighter(QSyntaxHighlighter):
    4. def __init__(self, parent):
    5. super(Highlighter, self).__init__(parent)
    6. self.sectionFormat = QTextCharFormat()
    7. self.sectionFormat.setForeground(Qt.blue)
    8.  
    9. def highlightBlock(self, text):
    10. if text.startswith('Test'):
    11. self.setFormat(0, len(text), self.sectionFormat)
    To copy to clipboard, switch view to plain text mode 

    Any suggestion is appreciated. Even if the suggestions are for C++ code, it will help me to understand how it works and I'll adapt it to python myself.

    Note: I am using python 3.6 + PyQt 5.10.1
    Last edited by Saelyth; 19th March 2018 at 21:43.

  2. #2
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    Default Re: QSyntaxHighlighter for rows inside a table inside a QTextEdit

    QSyntaxHighlighter is not meant to work with rich text. You have to do your own parsing and coloring by injecting QTextCharFormat objects directly into your document.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

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