QLabel Fixed count of Rows

sandro4912

I want to have a Qt Label with a fixed size which can display n lines of text.

My hacky solution for this was this (with n = 4):

    QFontMetrics fm{ mAnnouncementLabel->font() };
    mAnnouncementLabel->setFixedHeight(fm.horizontalAdvance("Test") * 4);

So what is the correct way to limit a QLabel to n lines of text?

jsulm

@sandro4912 Depending on what you want to do you could use one QLabel for each line :-)

JonB

@sandro4912 said in QLabel Fixed count of Rows:

horizontalAdvance

QFontMetrics::horizontalAdvance() looks like it returns some horizontal distance? Presumably you rather want something which measures the font vertically, and (I don't know) includes the inter-line gap, if applicable? I'm thinking QFontMetrics::lineSpacing() * 4?

sandro4912

@JonB That did the job now the label height looks correct for 4 lines.

@jsulm I thought several Labels is a bit overkill. For now i build a string together with \n at the end depending on how many messages show up (Maximum can be 4). I guess I could also pack the QLabel in a QVector and display / fill that.