On 19.04.2010 21:16, Schwab,Wilhelm K wrote:
I'm not sure how to read "it's not the kerning you are looking for."
Read it as "if you meant kerning in the sense that the width of a string
~= width of each individual character" i.e., the ascent/descentKerns in
StrikeFonts are not used for this.
What I am trying to discover is how to get the exact pixel size of '0xFFFF'
and of 'suffix AV' - the latter will potentially involve more kerning than the
former.
When rendered by StrikeFonts, no, they will not, since it does not do
kerning.
For FreeTypeFonts, #widthOfString:from:to: does exactly what you ask.
It wouldn't be impossible to add kerning to StrikeFonts, but it's a
fairly major task as you'd need to:
- Update the StrikeFont class to include kerningInfo, and implement
kerningLeft:right: method
- Define font construction methods etc.
- Actually define useful kerning values for fonts in use.
- Update the displayString: primitive to take into account kerning info
Basically, the support is just not there at all at the moment for
StrikeFont kerning.
Cheers,
Henry
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