For some reason that I have yet to discover, calling -
[NSAttributedString size] is causing a crash. It's rare, but it's
happening. I can't yet repeat it on my system.
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000010
Thread 0 Crashed:
0 com.apple.CoreText 0x9532d56e
CFTLine::CFTLine(__CFString const*, adopted_t const&) + 16
1 com.apple.CoreText 0x9530c2a3 CTTypesetterCreateLine +
129
2 com.apple.AppKit 0x95efbabc -[NSATSLineFragment
layoutForStartingGlyphAtIndex:characterIndex:minPosition:maxPosition:lineFragmentRect
:] + 965
3 com.apple.AppKit 0x95efa539 -[NSATSTypesetter
_layoutLineFragmentStartingWithGlyphAtIndex:characterIndex:atPoint:renderingContext
:] + 2651
4 com.apple.AppKit 0x95f32e13 -[NSATSTypesetter
layoutParagraphAtPoint:] + 155
5 com.apple.AppKit 0x95edb579 -[NSTypesetter
_layoutGlyphsInLayoutManager:startingAtGlyphIndex:maxNumberOfLineFragments:maxCharacterIndex:nextGlyphIndex:nextCharacterIndex
:] + 2974
6 com.apple.AppKit 0x964c8562 -[NSTypesetter
layoutCharactersInRange:forLayoutManager:maximumNumberOfLineFragments
:] + 218
7 com.apple.AppKit 0x96243d98 -[NSATSTypesetter
layoutCharactersInRange:forLayoutManager:maximumNumberOfLineFragments
:] + 599
8 com.apple.AppKit 0x95f309af -
[NSLayoutManager(NSPrivate)
_fillLayoutHoleForCharacterRange:desiredNumberOfLines:isSoft:] + 1024
9 com.apple.AppKit 0x95f47700 -
[NSLayoutManager(NSPrivate)
_fillLayoutHoleAtIndex:desiredNumberOfLines:] + 261
10 com.apple.AppKit 0x95f3e9be
_NSFastFillAllLayoutHolesUpToEndOfContainerForGlyphIndex + 624
11 com.apple.AppKit 0x95f3e569 -[NSLayoutManager
textContainerForGlyphAtIndex:effectiveRange:] + 128
12 com.apple.AppKit 0x95f3e400 -[NSLayoutManager
glyphRangeForTextContainer:] + 307
13 com.apple.AppKit 0x95f6e433 -
[NSStringDrawingTextStorage usedRectForTextContainer:] + 153
14 com.apple.AppKit 0x95eed172 -
[NSAttributedString(NSExtendedStringDrawing)
boundingRectWithSize:options:] + 2044
15 com.apple.AppKit 0x95fcfa5f -
[NSAttributedString(NSStringDrawing) size] + 68
16 com.my.app 0x0007392c -[AQColumnTokenCell
cellSize] + 46
17 com.my.app 0x00071cb9 -[AQColumnListView
cellFrameForColumnIndex:] + 181
18 com.my.app 0x00072c07 -[AQColumnListView
drawRect:] + 262
19 com.apple.AppKit 0x95f8529c -[NSView
_drawRect:clip:] + 3853
20 com.apple.AppKit 0x95f83d93 -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1050
21 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
22 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
23 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
24 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
25 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
26 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
27 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
28 com.apple.AppKit 0x95f8412a -[NSView
_recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1969
29 com.apple.AppKit 0x95f826e9 -[NSView
_recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView
:] + 759
30 com.apple.AppKit 0x95f8202b -[NSThemeFrame
_recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView
:] + 306
31 com.apple.AppKit 0x95f7eb4f -[NSView
_displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] +
3090
32 com.apple.AppKit 0x95ebf523 -[NSView
displayIfNeeded] + 933
33 com.apple.AppKit 0x95f71c61 -[NSWindow
_setFrameCommon:display:stashSize:] + 2031
34 com.apple.AppKit 0x95f7146a -[NSWindow
setFrame:display:] + 78
35 com.apple.AppKit 0x95fc4469 -[NSMoveHelper
_stopAnimation] + 637
36 com.apple.AppKit 0x96120776 -[NSMoveHelper
_doAnimation] + 1048
37 com.apple.AppKit 0x9619f4b0 -[NSMoveHelper
_resizeWindow:toFrame:display:] + 407
38 com.apple.AppKit 0x95fac71e -[NSWindow
setFrame:display:animate:] + 1038
39 com.my.app 0x0006b1fa -[AQImportPanel(Private)
p_displayColumnMappingView] + 1860
40 com.apple.AppKit 0x95f8e53b -[NSApplication
sendAction:to:from:] + 112
41 com.apple.AppKit 0x95f8e478 -[NSControl
sendAction:to:] + 108
42 com.apple.AppKit 0x95f8e2fe -[NSCell
_sendActionFrom:] + 169
43 com.apple.AppKit 0x95f8d957 -[NSCell
trackMouse:inRect:ofView:untilMouseUp:] + 1827
44 com.apple.AppKit 0x95f8d1aa -[NSButtonCell
trackMouse:inRect:ofView:untilMouseUp:] + 541
45 com.apple.AppKit 0x95f8ca64 -[NSControl mouseDown:]
+ 888
46 com.apple.AppKit 0x95f8b1a3 -[NSWindow sendEvent:] +
5381
47 com.apple.AppKit 0x95f57d49 -[NSApplication
sendEvent:] + 2941
48 com.my.app 0x0009e9f4 -[AGApplication
sendEvent:] + 445
49 com.apple.AppKit 0x95eb569f -[NSApplication run] + 847
50 com.apple.AppKit 0x95e828a4 NSApplicationMain + 574
51 com.my.app 0x0000306e start + 54
The relevant code is:
- (NSSize)cellSize;
{
NSAttributedString * attrStr = [self attributedStringValue];
NSSize size = [attrStr size];
size.width = ceil(size.width) + 3.0 + 16.0 + 16.0 + 3.0;
return size;
}
- (NSAttributedString *)attributedStringValue;
{
NSString * str = [self title];
NSMutableDictionary * attribs = [NSMutableDictionary
dictionaryWithObjectsAndKeys:
[NSFont systemFontOfSize:12.0],
NSFontAttributeName, nil];
if ([str isEqual:@""]) {
str = @"none";
[attribs setObject:[NSColor colorWithCalibratedWhite:0.75 alpha:1.0]
forKey:NSForegroundColorAttributeName];
} else if ([self isHighlightedForReplacement]) {
[attribs setObject:[NSColor colorWithCalibratedWhite:0.75 alpha:1.0]
forKey:NSForegroundColorAttributeName];
}
return [[[NSAttributedString alloc] initWithString:str
attributes:attribs] autorelease];
}
If [self title] were nil, I'd get an exception when creating the
attributed string, not a crash when calling -size. There's nothing
fancy going on with the string. The only thing I can think of is that
this drawing and call to -size is happening while the window is
resizing caused by a simple call to -[NSWindow
setFrame:display:animate:].
Am I SOL?
--
Seth Willits
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