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Add methods to translate from relation and attribute to string.

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This commit is contained in:
Gregory John Casamento 2020-05-27 19:04:42 -04:00
parent 44a3512ae2
commit 33e39b1d93
1 changed files with 77 additions and 0 deletions
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77
Source/NSLayoutConstraint.m
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@ -35,6 +35,83 @@ static NSMutableArray *activeConstraints;
@implementation NSLayoutConstraint
+ (NSString *) _attributeToString: (NSLayoutAttribute)attr
{
NSString *name = nil;
switch (attr)
{
case NSLayoutAttributeLeft:
name = @"Left";
break;
case NSLayoutAttributeRight:
name = @"Right";
break;
case NSLayoutAttributeTop:
name = @"Top";
break;
case NSLayoutAttributeBottom:
name = @"Bottom";
break;
case NSLayoutAttributeLeading:
name = @"Leading";
break;
case NSLayoutAttributeTrailing:
name = @"Trailing";
break;
case NSLayoutAttributeWidth:
name = @"Width";
break;
case NSLayoutAttributeHeight:
name = @"Height";
break;
case NSLayoutAttributeCenterX:
name = @"CenterX";
break;
case NSLayoutAttributeCenterY:
name = @"CenterY";
break;
//case NSLayoutAttributeLastBaseline:
//name = @"LastBaseline";
//break;
case NSLayoutAttributeBaseline:
name = @"Baseline";
break;
case NSLayoutAttributeFirstBaseline:
name = @"FirstBaseline";
break;
case NSLayoutAttributeNotAnAttribute:
name = @"NotAnAttribute";
break;
default:
break;
}
return name;
}
+ (NSString *) _relationToString: (NSLayoutRelation)rel
{
NSString *relation = nil;
switch (rel)
{
case NSLayoutRelationLessThanOrEqual:
relation = @"<=";
break;
case NSLayoutRelationEqual:
relation = @"=";
break;
case NSLayoutRelationGreaterThanOrEqual:
relation = @">=";
break;
default:
break;
}
return relation;
}
+ (NSArray *) constraintsWithVisualFormat: (NSString *)fmt
options: (NSLayoutFormatOptions)opt
metrics: (NSDictionary *)metrics