Re: Slight problem w/ fonts

[Gregory Casamento]

--- Jeff Teunissen <deek@d2dc.net> wrote:
> Gregory Casamento wrote:
> > 
> > I am having a bit of trouble w/ GSFontAntiAlias after my latest update. 
> > It seems as though the fonts are being rendered about 2 times larger
> > than normal.
> 
> The graphic shows that your fonts are being rendered to their point size
> instead of their size in pixels, which is how GNUstep (incorrectly) used to
> handle fonts.
> 
> pixelSize = round (pointSize * (dpi * (1/72)))
> 
> On X, typically, the pixel size and the point size are _almost_ the same.
> That's because the default configuration sets a DPI of 75, and a point is one
> seventy-secondth of an inch., approximately 0.01389 inches. On a 75DPI
> screen,
> a 10-point font is approximately 10.4167 pixels in height, rounded down to
> 10.
> 
> However, most displays in recent years are no longer 75DPI. On my system,
> which is calibrated to 100 DPI, the same 10-point font should be 13.8889
> pixels in height, rounded up to 14.
> 
> There is a bug somewhere in the code, in that the font ascent (maximum
> distance from the baseline to the top of a glyph in the font) and descent
> (maximum distance from the baseline to the bottom of a glyph in the font) are
> causing problems with clipping. The glyphs shouldn't have their tops hacked
> off like that. I think that perhaps the baseline isn't being positioned
> correctly, because the ascender and descender code seems to look right.
> 
> I found that this bug existed when I switched GNUstep to use point sizes
> instead of pixel sizes, but I wasn't able to find the cause of it.
> 
> [snip]

I am wondering why this worked on my system before the update.   I've had this
default activated for a number of months now with no problems.   Hrmmm.



=====
Gregory John Casamento
------------------------------------------------------
Please sign the petition against software patents at:
http://www.petitiononline.com/pasp01/petition.html
------------------------------------------------------

__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
http://greetings.yahoo.com