I have change the color of each line text in QTextWidget one by one

Qt Enthusiast

I have change the color of each line text in QTextWidget one by one. I have multiple lines QtextEdit .

Could you please some one suggest how to do that

mrjj

Hi
Did you use HTML or just plaintext ?
https://stackoverflow.com/questions/2857864/qtextedit-with-different-text-colors-qt-c

Qt Enthusiast

I have lines

line1
line2
line3
intially lines are not edited

now I have C++ function

colorEach:Line() {
getEachline from QtexLine and
change the color of ltext in QtextEdit

}

VRonin

QTextCursor cursor(textEdit->document());
cursor.movePosition(QTextCursor::Start);
while(cursor.movePosition(QTextCursor::EndOfLine,QTextCursor::MoveAnchor)){
QTextCharFormat tempFormat = cursor.charFormat();
tempFormat.setBackground(Qt::yellow);
cursor.setCharFormat(tempFormat);
cursor.movePosition(QTextCursor::NoMove); //this might need to be cursor.movePosition(QTextCursor::NextCharacter) unsure
}

J.Hilk

@Qt-Enthusiast
an alternative to @VRonin example

void changeColors(QTextEdit *edit){
    QString newText;

    QVector<QString> colors {
        "<font color=\"red\">",
        "<font color=\"green\">",
        "<font color=\"blue\">"
    };

    QString endFont = "</font>";
    QString ParagraphEnd = "</p>";

    QString text = edit->toHtml();
    auto ref = text.split(ParagraphEnd);

    for(int i(0); i < ref.size();i++){
        QString s = ref.at(i);
        int insert = s.lastIndexOf(">");
        s.insert(insert+1,colors.at(i%3));
        s.append(endFont+ParagraphEnd);
        newText.append(s);
    }
    edit->setHtml(newText);
}