Measure Text Height

[Jay Van Diyk]

Hi, How do we measure Text Height? I couldn't find a function that does this

MeasureText() only returns the width. 

Any thoughts?

[Ratnakar Pai]

Hi,

You could try SkPaint::getFontSpacing(). This gives the recommended line spacing for the current font-strike set on the paint.

If you want the absolute height(instead of recommended spacing), you could try the SkPaint::getFontMetrics() API and calculate fTop+fBottom for the text height.

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[Jay Van Diyk]

Hi ratpi,

Thanks for the reply.

I tried your SkPaint::getFontMetrics() API but get

SkPaint::FontMetrics *metrics;
 skPaint->getFontMetrics(metrics);
SkScalar height = metrics->fTop+metrics->fBottom;

But I got the negative value instead.

Could you elaborate on what fTop and fBottom actually are?

I read the docs but can't seem to understand.
Sorry.

Thank you

Jay