Hang in font panel with certain fonts

[Riccardo Mottola]

Hi,

while playing with fonts for Johannes' problem I was able to hang Ink 
consistently.

I just need to select the font "Terminal" and the whole app freezes. 
I'm using the cairo backend.

I reproduced this in gdb and report some debugging info:

#0  0xbb18db9d in objc_msgSend_fpret ()
   from /System/Library/Libraries/libobjc.so.4.6
#1  0xbba131b8 in -[GSHorizontalTypesetter layoutLineNewParagraph:] (
    self=0xb8399088, _cmd=0x0, newParagraph=1 '\001')
    at GSHorizontalTypesetter.m:709
#2  0xbba1492b in -[GSHorizontalTypesetter 
layoutGlyphsInLayoutManager:inTextContainer:startingAtGlyphIndex:previousLineFragmentRect:nextGlyphIndex:numberOfLineFragments:] 
(self=0x0, _cmd=0xbbba52c0, layoutManager=<optimized out>,
    textContainer=<optimized out>, glyphIndex=<optimized out>,
    previousLineFragRect=..., nextGlyphIndex=<optimized out>,
    howMany=<optimized out>) at GSHorizontalTypesetter.m:1281
#3  0xbba0e812 in -[GSLayoutManager(LayoutHelpers) 
_doLayoutToContainer:] (
    self=0xb8399088, _cmd=0xb8028498, cindex=<optimized out>)
    at GSLayoutManager.m:2000
#4  0xbba0fa6a in -[GSLayoutManager(layout) usedRectForTextContainer:] 
(
    self=0xb803c608, _cmd=0xbbb6fd98, container=<optimized out>)
    at GSLayoutManager.m:2627
#5  0xbb9723ec in cache_lookup (hasSize=<optimized out>,
    useScreenFonts=<optimized out>, size=<optimized out>)
    at NSStringDrawing.m:317
#6  0xbb972614 in -[NSAttributedString(NSStringDrawing) 
drawWithRect:options:]
    (self=<optimized out>, _cmd=0xa, rect=..., options=3086229288)
    at NSStringDrawing.m:430
#7  0xbb97247c in -[NSAttributedString(NSStringDrawing) drawInRect:] (
    self=0xb7f68468, _cmd=0xbbb7b018, rect=...) at 
NSStringDrawing.m:407
#8  0xbb99451d in -[NSTextFieldCell drawInteriorWithFrame:inView:] (
    self=<optimized out>, _cmd=0x40400000, cellFrame=...,
    controlView=<optimized out>) at NSTextFieldCell.m:241
#9  0xbb897d06 in -[NSCell drawWithFrame:inView:] (self=0xb7f41f28,
    _cmd=0xbbb06e88, cellFrame=..., controlView=<optimized out>)
    at NSCell.m:2114
#10 0xbb84b79d in -[NSActionCell drawWithFrame:inView:] 
(self=<optimized out>,
    _cmd=0xb8dc9ef8, cellFrame=..., controlView=<optimized out>)
    at NSActionCell.m:344
#11 0xbb8ba468 in -[NSControl drawCell:] (self=<optimized out>,
    _cmd=0xbbb27e00, aCell=0xb7f41f28) at NSControl.m:685
#12 0xbb8ba3f9 in -[NSControl drawRect:] (self=0xb8dc9ef8, 
_cmd=0xbbb89e60,
    aRect=...) at NSControl.m:675
#13 0xbb9c4a0d in -[NSView displayRectIgnoringOpacity:inContext:] (
    self=0xb8dc9ef8, _cmd=0xbbb8865c, aRect=..., context=0xb825e6a8)
    at NSView.m:2570
#14 0xbb9c430c in -[NSView displayRectIgnoringOpacity:] 
(self=0xb8dc9ef8,
    _cmd=0xbbb89f40, aRect=...) at NSView.m:2519
#15 0xbb9c3e02 in -[NSView displayIfNeededInRectIgnoringOpacity:] (
    self=0xb8dc9ef8, _cmd=0x0, aRect=...) at NSView.m:2450
#16 0xbb9c4117 in -[NSView displayIfNeededInRectIgnoringOpacity:] (

in # I get:
$1 = (struct NSFont *) 0xb7ca3c88
(gdb) p *f
$2 = {<> = {isa = 0xbbb31f40}, fontName = 0xbbb31f40, matrix = {
    -0.00546637177, -2.94079218e-05, 12, 0, 0, 12},
  matrixExplicitlySet = 64 '@', screenFont = 64 '@', fontInfo = 
0xbbb31f40,
  _fontRef = 0xbbb31f40, role = -1145888960, cachedScreenFont = 
0xbbb31f40,
  cachedFlippedFont = 0xbbb31f40}

(gdb) po f
<NSFont: 0xb7ca3c88> Terminal 12.000 0.000 0.000 12.000 0.000 0.000 S 0

but in #2, why is self 0x0 ?

I checked in xfontsel and the font is a typical bitmap font for 
terminal display, what is strange is that there size "0" is listed, 
could that confuse gnustep/cairo?
I can use this Terminal font in other apps, e.g. Emacs, without 
troubles.

Riccardo