81 lines
2.7 KiB
Objective-C
81 lines
2.7 KiB
Objective-C
//
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// HFTextVisualStyleRun.m
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// HexFiend_2
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//
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// Copyright 2009 ridiculous_fish. All rights reserved.
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//
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#import "HFTextVisualStyleRun.h"
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@implementation HFTextVisualStyleRun
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- (instancetype)init {
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self = [super init];
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_scale = 1.;
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_shouldDraw = YES;
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return self;
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}
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- (void)dealloc {
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[_foregroundColor release];
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[_backgroundColor release];
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[_bookmarkStarts release];
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[_bookmarkExtents release];
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[_bookmarkEnds release];
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[super dealloc];
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}
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- (void)set {
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[_foregroundColor set];
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if (_scale != (CGFloat)1.0) {
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CGContextRef ctx = [[NSGraphicsContext currentContext] graphicsPort];
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CGAffineTransform tm = CGContextGetTextMatrix(ctx);
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/* Huge hack - adjust downward a little bit if we are scaling */
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tm = CGAffineTransformTranslate(tm, 0, -.25 * (_scale - 1));
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tm = CGAffineTransformScale(tm, _scale, _scale);
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CGContextSetTextMatrix(ctx, tm);
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}
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}
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static inline NSUInteger flip(NSUInteger x) {
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return _Generic(x, unsigned: NSSwapInt, unsigned long: NSSwapLong, unsigned long long: NSSwapLongLong)(x);
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}
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static inline NSUInteger rol(NSUInteger x, unsigned char r) {
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r %= sizeof(NSUInteger)*8;
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return (x << r) | (x << (sizeof(NSUInteger)*8 - r));
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}
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- (NSUInteger)hash {
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NSUInteger A = 0;
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// All these hashes tend to have only low bits, except the double which has only high bits.
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#define Q(x, r) rol(x, sizeof(NSUInteger)*r/6)
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A ^= flip([_foregroundColor hash] ^ Q([_backgroundColor hash], 2)); // skew high
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A ^= Q(_range.length ^ flip(_range.location), 2); // skew low
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A ^= flip([_bookmarkStarts hash]) ^ Q([_bookmarkEnds hash], 3) ^ Q([_bookmarkExtents hash], 4); // skew high
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A ^= _shouldDraw ? 0 : (NSUInteger)-1;
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A ^= *(NSUInteger*)&_scale; // skew high
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return A;
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#undef Q
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}
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- (BOOL)isEqual:(HFTextVisualStyleRun *)run {
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if(![run isKindOfClass:[self class]]) return NO;
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/* Check each field for equality. */
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if(!NSEqualRanges(_range, run->_range)) return NO;
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if(_scale != run->_scale) return NO;
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if(_shouldDraw != run->_shouldDraw) return NO;
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if(!!_foregroundColor != !!run->_foregroundColor) return NO;
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if(!!_backgroundColor != !!run->_backgroundColor) return NO;
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if(!!_bookmarkStarts != !!run->_bookmarkStarts) return NO;
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if(!!_bookmarkExtents != !!run->_bookmarkExtents) return NO;
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if(!!_bookmarkEnds != !!run->_bookmarkEnds) return NO;
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if(![_foregroundColor isEqual: run->_foregroundColor]) return NO;
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if(![_backgroundColor isEqual: run->_backgroundColor]) return NO;
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if(![_bookmarkStarts isEqual: run->_bookmarkStarts]) return NO;
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if(![_bookmarkExtents isEqual: run->_bookmarkExtents]) return NO;
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if(![_bookmarkEnds isEqual: run->_bookmarkEnds]) return NO;
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return YES;
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}
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@end
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