[whatwg] Canvas lack of drawString method (p.s.)

Stefan Haustein sh at kobjects.org
Tue Oct 17 15:42:31 PDT 2006


the second image exposes exactly the problem that an alignment parameter 
would solve:

"TR" and "1/2pi" could be drawn aligned "baseline right" to the 
references point on the y-axis.
"0.97" and "pi" could be drawn aligned "top center" to the reference 
points on the x-axis.

The badly rendered example image looks like single characters are placed 
at fixed positions out of context.
Of course, this will lead to problems not only when the fonts are 
substituted, but also for the slight differences in font sizes...

Best regards,

James Graham wrote:
> Stefan Haustein wrote:
>> p.s.: To simplify coping with changing font sizes, it probably makes 
>> sense to add an "align" parameter (left|center|right 
>> top|center|baseline|bottom) to the drawString call...
> How does that solve the font substitution problem? This is a real 
> problem that people actually have with exactly the use cases you 
> propose (e.g. [1]).
> [1] http://golem.ph.utexas.edu/~distler/blog/archives/000888.html

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