//
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// NSLayoutConstraint+MASDebugAdditions.m
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// Masonry
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//
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// Created by Jonas Budelmann on 3/08/13.
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// Copyright (c) 2013 Jonas Budelmann. All rights reserved.
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//
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#import "NSLayoutConstraint+MASDebugAdditions.h"
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#import "MASConstraint.h"
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#import "MASLayoutConstraint.h"
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@implementation NSLayoutConstraint (MASDebugAdditions)
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#pragma mark - description maps
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+ (NSDictionary *)layoutRelationDescriptionsByValue {
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static dispatch_once_t once;
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static NSDictionary *descriptionMap;
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dispatch_once(&once, ^{
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descriptionMap = @{
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@(NSLayoutRelationEqual) : @"==",
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@(NSLayoutRelationGreaterThanOrEqual) : @">=",
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@(NSLayoutRelationLessThanOrEqual) : @"<=",
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};
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});
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return descriptionMap;
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}
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+ (NSDictionary *)layoutAttributeDescriptionsByValue {
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static dispatch_once_t once;
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static NSDictionary *descriptionMap;
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dispatch_once(&once, ^{
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descriptionMap = @{
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@(NSLayoutAttributeTop) : @"top",
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@(NSLayoutAttributeLeft) : @"left",
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@(NSLayoutAttributeBottom) : @"bottom",
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@(NSLayoutAttributeRight) : @"right",
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@(NSLayoutAttributeLeading) : @"leading",
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@(NSLayoutAttributeTrailing) : @"trailing",
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@(NSLayoutAttributeWidth) : @"width",
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@(NSLayoutAttributeHeight) : @"height",
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@(NSLayoutAttributeCenterX) : @"centerX",
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@(NSLayoutAttributeCenterY) : @"centerY",
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@(NSLayoutAttributeBaseline) : @"baseline",
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#if (__IPHONE_OS_VERSION_MIN_REQUIRED >= 80000) || (__TV_OS_VERSION_MIN_REQUIRED >= 9000) || (__MAC_OS_X_VERSION_MIN_REQUIRED >= 101100)
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@(NSLayoutAttributeFirstBaseline) : @"firstBaseline",
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@(NSLayoutAttributeLastBaseline) : @"lastBaseline",
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#endif
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#if TARGET_OS_IPHONE || TARGET_OS_TV
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@(NSLayoutAttributeLeftMargin) : @"leftMargin",
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@(NSLayoutAttributeRightMargin) : @"rightMargin",
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@(NSLayoutAttributeTopMargin) : @"topMargin",
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@(NSLayoutAttributeBottomMargin) : @"bottomMargin",
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@(NSLayoutAttributeLeadingMargin) : @"leadingMargin",
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@(NSLayoutAttributeTrailingMargin) : @"trailingMargin",
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@(NSLayoutAttributeCenterXWithinMargins) : @"centerXWithinMargins",
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@(NSLayoutAttributeCenterYWithinMargins) : @"centerYWithinMargins",
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#endif
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};
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});
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return descriptionMap;
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}
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+ (NSDictionary *)layoutPriorityDescriptionsByValue {
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static dispatch_once_t once;
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static NSDictionary *descriptionMap;
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dispatch_once(&once, ^{
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#if TARGET_OS_IPHONE || TARGET_OS_TV
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descriptionMap = @{
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@(MASLayoutPriorityDefaultHigh) : @"high",
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@(MASLayoutPriorityDefaultLow) : @"low",
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@(MASLayoutPriorityDefaultMedium) : @"medium",
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@(MASLayoutPriorityRequired) : @"required",
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@(MASLayoutPriorityFittingSizeLevel) : @"fitting size",
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};
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#elif TARGET_OS_MAC
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descriptionMap = @{
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@(MASLayoutPriorityDefaultHigh) : @"high",
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@(MASLayoutPriorityDragThatCanResizeWindow) : @"drag can resize window",
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@(MASLayoutPriorityDefaultMedium) : @"medium",
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@(MASLayoutPriorityWindowSizeStayPut) : @"window size stay put",
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@(MASLayoutPriorityDragThatCannotResizeWindow) : @"drag cannot resize window",
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@(MASLayoutPriorityDefaultLow) : @"low",
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@(MASLayoutPriorityFittingSizeCompression) : @"fitting size",
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@(MASLayoutPriorityRequired) : @"required",
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};
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#endif
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});
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return descriptionMap;
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}
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#pragma mark - description override
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+ (NSString *)descriptionForObject:(id)obj {
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if ([obj respondsToSelector:@selector(mas_key)] && [obj mas_key]) {
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return [NSString stringWithFormat:@"%@:%@", [obj class], [obj mas_key]];
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}
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return [NSString stringWithFormat:@"%@:%p", [obj class], obj];
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}
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- (NSString *)description {
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NSMutableString *description = [[NSMutableString alloc] initWithString:@"<"];
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[description appendString:[self.class descriptionForObject:self]];
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[description appendFormat:@" %@", [self.class descriptionForObject:self.firstItem]];
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if (self.firstAttribute != NSLayoutAttributeNotAnAttribute) {
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[description appendFormat:@".%@", self.class.layoutAttributeDescriptionsByValue[@(self.firstAttribute)]];
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}
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[description appendFormat:@" %@", self.class.layoutRelationDescriptionsByValue[@(self.relation)]];
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if (self.secondItem) {
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[description appendFormat:@" %@", [self.class descriptionForObject:self.secondItem]];
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}
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if (self.secondAttribute != NSLayoutAttributeNotAnAttribute) {
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[description appendFormat:@".%@", self.class.layoutAttributeDescriptionsByValue[@(self.secondAttribute)]];
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}
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if (self.multiplier != 1) {
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[description appendFormat:@" * %g", self.multiplier];
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}
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if (self.secondAttribute == NSLayoutAttributeNotAnAttribute) {
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[description appendFormat:@" %g", self.constant];
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} else {
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if (self.constant) {
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[description appendFormat:@" %@ %g", (self.constant < 0 ? @"-" : @"+"), ABS(self.constant)];
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}
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}
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if (self.priority != MASLayoutPriorityRequired) {
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[description appendFormat:@" ^%@", self.class.layoutPriorityDescriptionsByValue[@(self.priority)] ?: [NSNumber numberWithDouble:self.priority]];
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}
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[description appendString:@">"];
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return description;
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}
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@end
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