[Xbae-discuss] [ xbae-Bugs-850756 ] Wrong column widths when using fontsets

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Bugs item #850756, was opened at 2003-11-28 16:15
Message generated for change (Comment added) made by evgeny
You can respond by visiting: 
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Category: Bugs
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Evgeny Stambulchik (evgeny)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wrong column widths when using fontsets

Initial Comment:
When the Xbae fonList resource is a fontset, the column
widths are calculated wrongly (too wide in my case).
Probably related to a recent posting to the mailing
list WRT to a Grace problem, in which case the columns
are too narrow (only few pixels wide). See the attached
screenshot of running 

./matrix -xrm
"Matrix*fontList:-*-helvetica-medium-r-normal-*-12-*"
(left)

versus

./matrix -xrm
"Matrix*fontList:-*-helvetica-medium-r-normal-*-12-*:"
 (right)



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>Comment By: Evgeny Stambulchik (evgeny)
Date: 2003-11-28 16:53

Message:
Logged In: YES 
user_id=27019

Looking at Create.c, the culprit is the if (type ==
XmFONT_IS_FONTSET) in two places (the cell and the label
fonts). While for fonts, the char width is calculated as an
average between the max and min glyph widths, for fontsets,
just the max value is used. Since the .fid field is anyway
used that of the first font in the set, probably the same
(avg) algorithm can be used in the fontset case, using the
first font entry values. (BTW, is XFontsOfFontSet garanteed
to return at least one font? fonts[0] is accessed without
checking it).

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