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On Thursday, February 25, 2021 at 12:22:06 AM UTC+1 Ian MacArthur wrote:
On 24 Feb 2021, at 20:29, Manolo wrote:
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> On Wednesday, February 24, 2021 at 8:38:48 PM UTC+1 Ian MacArthur wrote:
>
> Neat, didn’t know that worked.
>
> Can you change the scale factor during a draw() method? I wonder if you could use this technique to, for example, have the text scale “normally” with the DPI, but force lines always to be scale 1.0, or etc...?
>
> Please, look at my example program button.cxx that does exactly this.
Yeah, sorry Manolo, I didn’t ask the question well.
What I mean is whether we can draw the text at labelsize() (when “s" is not unity) and then once the text has drawn set “s" to 1 to draw the lines.
You could remove and restore the scaling factor several times in the draw() method and thus draw some parts with and other without scaling.
What the example does is set “s” to 1, then draw the text at (lablesize() * s) with the lines, but all with unit “s” - which has exactly the same effect I imagine, unless for some weird reason (lablesize() * s) is not the same as labelsize() at scale “s”...
Text drawing in presence of a scaling factor s is nothing but multiplying the fontsize by s and drawing text with it.
Thus, both approaches give exactly the same text, antialiasing included.
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