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私のユーザーの何人かがこのクラッシュを受けています。drawRectのクラッシュ - 何が原因ですか？
私が言うことができる限り、それは何とかNSTextViewのサブクラス-drawRect:のメソッドに接続されていますが、何が原因か分かりませんが、ストレステストはバグを揺さぶっていません。
のdrawRect
のコード- (NSRange)visibleRangeOfTextView:(NSRect) rect {
NSLayoutManager *layoutManager = [self
layoutManager];
NSTextContainer *textContainer = [self
textContainer];
NSRange glyphRange, characterRange;
// first transform to text container coordinates
NSPoint containerOrigin = [self textContainerOrigin];
rect.origin.x -= containerOrigin.x;
rect.origin.y -= containerOrigin.y;
// next, compute glyph range
glyphRange = [layoutManager glyphRangeForBoundingRect:rect inTextContainer:textContainer];
// finally, compute character range
characterRange = [layoutManager characterRangeForGlyphRange:glyphRange actualGlyphRange:NULL];
return characterRange;
}
- (NSRect)rectForCharacterRange:(NSRange)charRange
{
NSRect rect = [self
firstRectForCharacterRange:charRange];
rect.origin = [[self window]
convertScreenToBase:rect.origin];
rect = [self convertRect:rect fromView:nil];
if (!rect.size.width) rect.size.width = 6.0;
return rect;
}
- (void)drawRect:(NSRect)dirtyRect
{
[super drawRect:dirtyRect];
NSLog(@"Marking it");
NSMutableArray *arr = [[NSMutableArray alloc] init];
NSRange visible = [self visibleRangeOfTextView:dirtyRect];
NSRange last = NSMakeRange(visible.location, 0); while (true) {
NSRange error = [appController rangeOfMisspelledWordInString:self.string onlyInRange:visible startingAt:last.location + last.length];
last = error;
if (error.location == NSNotFound) {
break;
}
[arr addObject:[NSValue valueWithRange:error]];
}
NSLog(@"Spellchecked");
[[NSColor redColor] setStroke];
CGFloat dash[] = {2.0f, 2.0f} ;
// Make the text ranges and mark them
for (NSValue *val in arr) {
NSRange range = [val rangeValue];
NSRect rectInTextView = [self rectForCharacterRange:range];
NSRect toDraw = rectInTextView;
NSBezierPath* aPath = [NSBezierPath bezierPath];
[aPath setLineDash:dash count:2 phase:0];
NSPoint lineStart = toDraw.origin;
lineStart.y += toDraw.size.height;
NSPoint lineEnd = lineStart;
lineEnd.x += toDraw.size.width;
[aPath moveToPoint:lineStart];
[aPath lineToPoint:lineEnd];
[aPath stroke];
};
NSLog(@"Done");
}
スタックトレース：私はあなたが範囲はなりませんことを確認し、 "範囲"
NSRange range = [val rangeValue];
をチェックするためにassert関数を追加する必要があると思う
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
objc[5751]: garbage collection is ON
*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSConcreteTextStorage attribute:atIndex:longestEffectiveRange:inRange:]: Range or index out of bounds'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff91387fc6 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff8d4d7d5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff91387dfa +[NSException raise:format:arguments:] + 106
3 CoreFoundation 0x00007fff91387d84 +[NSException raise:format:] + 116
4 AppKit 0x00000001005d842c -[NSConcreteTextStorage attribute:atIndex:longestEffectiveRange:inRange:] + 131
5 AppKit 0x00000001006288ec -[NSLayoutManager(NSPrivate) _drawBackgroundForGlyphRange:atPoint:parameters:] + 910
6 AppKit 0x00000001006277a2 -[NSTextView drawRect:] + 1913
7 Skrivest√∏tte 0x000000010000b56c Skrivest√∏tte + 46444
8 AppKit 0x0000000100626e66 -[NSTextView _drawRect:clip:] + 2545
9 AppKit 0x00000001004a985d -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 3020
10 AppKit 0x00000001004aa34e -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5821
11 AppKit 0x00000001004aa34e -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5821
12 AppKit 0x00000001004a39af -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 4755
13 AppKit 0x000000010049c395 -[NSView displayIfNeeded] + 1528
14 AppKit 0x00000001004a1592 -[NSClipView _immediateScrollToPoint:] + 6533
15 AppKit 0x000000010049fb75 -[NSClipView scrollToPoint:] + 239
16 AppKit 0x000000010058f637 -[NSScrollView scrollClipView:toPoint:] + 266
17 AppKit 0x000000010058f3da -[NSClipView _scrollTo:animateScroll:flashScrollerKnobs:] + 1497
18 AppKit 0x00000001005923b7 -[NSClipView _scrollTo:animate:] + 27
19 AppKit 0x0000000100bcd5a2 __-[NSScrollView _snapRubberBand]_block_invoke_2 + 1536
20 AppKit 0x0000000100b3fc4e ____NSPeriodicInvokerScheduled_block_invoke_2 + 53
21 libdispatch.dylib 0x00007fff907b98ba _dispatch_call_block_and_release + 18
22 libdispatch.dylib 0x00007fff907bbc07 _dispatch_after_timer_callback + 16
23 libdispatch.dylib 0x00007fff907be2b6 _dispatch_source_invoke + 635
24 libdispatch.dylib 0x00007fff907baf77 _dispatch_queue_invoke + 71
25 libdispatch.dylib 0x00007fff907bb6f7 _dispatch_main_queue_callback_4CF + 257
26 CoreFoundation 0x00007fff9131d06c __CFRunLoopRun + 1724
27 CoreFoundation 0x00007fff9131c676 CFRunLoopRunSpecific + 230
28 HIToolbox 0x00007fff93ab831f RunCurrentEventLoopInMode + 277
29 HIToolbox 0x00007fff93abf5c9 ReceiveNextEventCommon + 355
30 HIToolbox 0x00007fff93abf456 BlockUntilNextEventMatchingListInMode + 62
31 AppKit 0x000000010045ff5d _DPSNextEvent + 659
32 AppKit 0x000000010045f861 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
33 AppKit 0x000000010045c19d -[NSApplication run] + 470
34 AppKit 0x00000001006dab88 NSApplicationMain + 867
35 Skrivest√∏tte 0x0000000100001020 Skrivest√∏tte + 4128
36 ??? 0x0000000000000002 0x0 + 2
)
言ったようにあなたはここで何が起こっているかを見ることができ、明確NSRange例外です： 35Skrivest√Πtte0x0000000 100001020Skrivest√tete+ 4128 –
申し訳ありませんが、これは私が持っているものです。何らかの理由でクラッシュレポートを象徴する運がなかった。 –
最初に、使用されたNSRangesのどれが例外を引き起こしているのかを突き止めてください。例外が発生した場合は、その値を確認してください。あなたのコードは大丈夫だと思われるので、無効なNSRangeの理由はおそらくそれの外にある – tomk