QTextEdit with different text colors (Qt / C++)

Question

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

Answer 1

Extending on https://stackoverflow.com/a/13287446/1619432:

QTextEdit::append() inserts a new paragraph with the previously set FontWeight / TextColor. insertHTML() or InsertPlainText() to avoid inserting a new paragraph (e.g. to achieve different formats in a single line) do not respect the font/color settings.

Instead use QTextCursor:

...
// textEdit->moveCursor( QTextCursor::End );
QTextCursor cursor( textEdit->textCursor() );

QTextCharFormat format;
format.setFontWeight( QFont::DemiBold );
format.setForeground( QBrush( QColor( "black" ) ) );
cursor.setCharFormat( format );

cursor.insertText( "Hello world!" );
...