I have a QTextEdit
box that displays text, and I'd like to be able to set the text color for different lines of text in the same QTextEdit
box. (i.e. line 1 might be red, line 2 might be black, etc.)
Is this possible in a QTextEdit
box? If not, what's the easiest way to get this behavior?
Thanks.
Just a quick addition: an alternative to generating the html yourself, if you're populating the text box programatically, is to use textEdit->setTextColor(QColor&)
. You can create the QColor object yourself, or use one of the predefined colours in the Qt namespace (Qt::black, Qt::red, etc). It will apply the specified colour to any text you add, until it is called again with a different one.
The ONLY thing that worked for me was html.
Code snippet follows.
QString line = "contains some text from somewhere ..." : : QTextCursor cursor = ui->messages->textCursor(); QString alertHtml = "<font color=\"DeepPink\">"; QString notifyHtml = "<font color=\"Lime\">"; QString infoHtml = "<font color=\"Aqua\">"; QString endHtml = "</font><br>"; switch(level) { case msg_alert: line = alertHtml % line; break; case msg_notify: line = notifyHtml % line; break; case msg_info: line = infoHtml % line; break; default: line = infoHtml % line; break; } line = line % endHtml; ui->messages->insertHtml(line); cursor.movePosition(QTextCursor::End); ui->messages->setTextCursor(cursor);
Use text formated as HTML, for example:
textEdit->setHtml(text);
where text, is a HTML formated text, contains with colored lines and etc.
Link to doc
A few quotes:
QTextEdit is an advanced WYSIWYG viewer/editor supporting rich text formatting using HTML-style tags. It is optimized to handle large documents and to respond quickly to user input.
.
The text edit can load both plain text and HTML files (a subset of HTML 3.2 and 4).
.
QTextEdit can display a large HTML subset, including tables and images.
This means mostly deprecated tags and as such does not include any current CSS, so I turned to this:
// save
int fw = ui->textEdit->fontWeight();
QColor tc = ui->textEdit->textColor();
// append
ui->textEdit->setFontWeight( QFont::DemiBold );
ui->textEdit->setTextColor( QColor( "red" ) );
ui->textEdit->append( entry );
// restore
ui->textEdit->setFontWeight( fw );
ui->textEdit->setTextColor( tc );
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