Hi,
The measure functions are in Paint. The scale functions are in Canvas. So I
can only measure text without any scale. And if I measure the width and
height of some text and want to draw a rectangle around it and want to use
the scale of canvas for zooming. On some zooms the text is a little
The Canvas scale does not apply to the font size, it applies to the
vector shapes generated from the original font size. You simply cannot
this:
p.setTextSize(fontSize * scale)
result = p.measureText(...)
You must instead do this:
p.setTextSize(fontSize)
result = scale * p.measureText(...)
On
And finally it is working as I expected on Android below 4.0. Why it is
not working on 4.0? What is the difference?
The font used, for one...
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Hi,
I am using a Typeface to draw text in canvas which have scale matrix. So
first I measure the width of text when scale is 1.0. Then I measure the
width of text when scale is different than 1.0. And I expect that non
scaled width * scale will be equal to scaled width. This is true on devices
Hi,
This is not the proper way to measure scaled text. The font size
defines the height of the font, not its width. There is no guarantee
whatsoever that scaling a font size by a number S will scale the width
of the text by the same number S. The proper way is to always call
measureText() with
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