CODEWITHSUNDEEP
qttextqpainter
Jepessen
Jepessen

Reputation: 12415

Get QPainter drawn text dimensions

I want to draw some text using QPainter::drawText command.

In order to set its position properly I need to know the dimension of drawn string in pixels.

Is there a way to know pixel dimension of the string? Possibly without drawing it before?

Upvotes: 0

Views: 1276

Answers (1)

owacoder
owacoder

Reputation: 4873

The QFontMetrics class has a method just for this purpose: boundingRect().

From the Qt docs (http://doc.qt.io/qt-5/qfontmetrics.html#boundingRect-2):

Returns the bounding rectangle of the characters in the string specified by text.

Note that the bounding rect only provides the width of drawn text, the width() function provides the width of trailing spaces as well. Also from the Qt docs:

boundingRect() returns a rectangle describing the pixels this string will cover whereas width() returns the distance to where the next string should be drawn.

Upvotes: 1

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