Merge pull request #163 from CraigSiemens/margins

Added the iOS 8 margin attributes

@@ -11,6 +11,7 @@
 		27A27D461A6CF0C400D34F52 /* MASExampleAspectFitView.m in Sources */ = {isa = PBXBuildFile; fileRef = 27A27D451A6CF0C400D34F52 /* MASExampleAspectFitView.m */; };
 		3C02224919D0C4EC00507321 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 3C02224819D0C4EC00507321 /* Images.xcassets */; };
 		3DB1CAD5184538E200E91FC5 /* MASExampleArrayView.m in Sources */ = {isa = PBXBuildFile; fileRef = 3DB1CAD4184538E200E91FC5 /* MASExampleArrayView.m */; };
+		44C0E6AF1A9B9C55003C70CF /* MASExampleMarginView.m in Sources */ = {isa = PBXBuildFile; fileRef = 44C0E6AE1A9B9C55003C70CF /* MASExampleMarginView.m */; };
 		4BEB55B61957394E008C862B /* MASExampleRemakeView.m in Sources */ = {isa = PBXBuildFile; fileRef = 4BEB55B51957394E008C862B /* MASExampleRemakeView.m */; };
 		6C87DADA5AB046D9A3181A65 /* libPods-Masonry iOS Examples.a in Frameworks */ = {isa = PBXBuildFile; fileRef = BDC1B8303EED42A2B01B94B1 /* libPods-Masonry iOS Examples.a */; };
 		DD175E6A182639FB0099129A /* MASExampleUpdateView.m in Sources */ = {isa = PBXBuildFile; fileRef = DD175E69182639FB0099129A /* MASExampleUpdateView.m */; };
@@ -40,6 +41,8 @@
 		3C02224819D0C4EC00507321 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
 		3DB1CAD3184538E200E91FC5 /* MASExampleArrayView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MASExampleArrayView.h; sourceTree = "<group>"; };
 		3DB1CAD4184538E200E91FC5 /* MASExampleArrayView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MASExampleArrayView.m; sourceTree = "<group>"; };
+		44C0E6AD1A9B9C55003C70CF /* MASExampleMarginView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MASExampleMarginView.h; sourceTree = "<group>"; };
+		44C0E6AE1A9B9C55003C70CF /* MASExampleMarginView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MASExampleMarginView.m; sourceTree = "<group>"; };
 		4BEB55B41957394E008C862B /* MASExampleRemakeView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MASExampleRemakeView.h; sourceTree = "<group>"; };
 		4BEB55B51957394E008C862B /* MASExampleRemakeView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MASExampleRemakeView.m; sourceTree = "<group>"; };
 		B086DD7D31DD4B49ADC08504 /* Pods-Masonry iOS Examples.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Masonry iOS Examples.xcconfig"; path = "../Pods/Pods-Masonry iOS Examples.xcconfig"; sourceTree = "<group>"; };
@@ -176,6 +179,8 @@
 				3DB1CAD4184538E200E91FC5 /* MASExampleArrayView.m */,
 				DD32C3FB18E8BFF6001F6AD2 /* MASExampleAttributeChainingView.h */,
 				DD32C3FC18E8BFF6001F6AD2 /* MASExampleAttributeChainingView.m */,
+				44C0E6AD1A9B9C55003C70CF /* MASExampleMarginView.h */,
+				44C0E6AE1A9B9C55003C70CF /* MASExampleMarginView.m */,
 			);
 			name = Views;
 			sourceTree = "<group>";
@@ -298,6 +303,7 @@
 				3DB1CAD5184538E200E91FC5 /* MASExampleArrayView.m in Sources */,
 				DD52F23B179CAD57005CD195 /* MASAppDelegate.m in Sources */,
 				DD52F251179CADC0005CD195 /* MASExampleBasicView.m in Sources */,
+				44C0E6AF1A9B9C55003C70CF /* MASExampleMarginView.m in Sources */,
 				DD653E4A1843E61500D1EC5A /* MASExampleLayoutGuideViewController.m in Sources */,
 				DDDF60CC181915E300BF7B8B /* MASExampleLabelView.m in Sources */,
 				27A27D461A6CF0C400D34F52 /* MASExampleAspectFitView.m in Sources */,

@@ -21,6 +21,7 @@
 #import "MASExampleArrayView.h"
 #import "MASExampleAttributeChainingView.h"
 #import "MASExampleAspectFitView.h"
+#import "MASExampleMarginView.h"
 
 static NSString * const kMASCellReuseIdentifier = @"kMASCellReuseIdentifier";
 
@@ -63,6 +64,9 @@ static NSString * const kMASCellReuseIdentifier = @"kMASCellReuseIdentifier";
                                               viewClass:MASExampleArrayView.class],
         [[MASExampleViewController alloc] initWithTitle:@"Attribute Chaining"
                                               viewClass:MASExampleAttributeChainingView.class],
+        [[MASExampleViewController alloc] initWithTitle:@"Margins"
+                                              viewClass:MASExampleMarginView.class],
+
     ];
     
     if ([UIViewController instancesRespondToSelector:@selector(topLayoutGuide)])

+//
+//  MASExampleMarginView.h
+//  Masonry iOS Examples
+//
+//  Created by Craig Siemens on 2015-02-23.
+//  Copyright (c) 2015 Jonas Budelmann. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface MASExampleMarginView : UIView
+
+@end

+//
+//  MASExampleMarginView.m
+//  Masonry iOS Examples
+//
+//  Created by Craig Siemens on 2015-02-23.
+//  Copyright (c) 2015 Jonas Budelmann. All rights reserved.
+//
+
+#import "MASExampleMarginView.h"
+
+@implementation MASExampleMarginView
+
+- (instancetype)init {
+    self = [super init];
+    if (!self) return nil;
+    
+    UIView *lastView = self;
+    for (int i = 0; i < 10; i++) {
+        UIView *view = UIView.new;
+        view.backgroundColor = [self randomColor];
+        view.layer.borderColor = UIColor.blackColor.CGColor;
+        view.layer.borderWidth = 2;
+        view.layoutMargins = UIEdgeInsetsMake(5, 10, 15, 20);
+        [self addSubview:view];
+        
+        [view mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.top.equalTo(lastView.topMargin);
+            make.bottom.equalTo(lastView.bottomMargin);
+            make.left.equalTo(lastView.leftMargin);
+            make.right.equalTo(lastView.rightMargin);
+        }];
+        
+        lastView = view;
+    }
+    
+    return self;
+}
+
+- (UIColor *)randomColor {
+    CGFloat hue = ( arc4random() % 256 / 256.0 );  //  0.0 to 1.0
+    CGFloat saturation = ( arc4random() % 128 / 256.0 ) + 0.5;  //  0.5 to 1.0, away from white
+    CGFloat brightness = ( arc4random() % 128 / 256.0 ) + 0.5;  //  0.5 to 1.0, away from black
+    return [UIColor colorWithHue:hue saturation:saturation brightness:brightness alpha:1];
+}
+
+@end

@@ -127,6 +127,20 @@
 - (MASConstraint *)centerY;
 - (MASConstraint *)baseline;
 
+#if TARGET_OS_IPHONE
+
+- (MASConstraint *)leftMargin;
+- (MASConstraint *)rightMargin;
+- (MASConstraint *)topMargin;
+- (MASConstraint *)bottomMargin;
+- (MASConstraint *)leadingMargin;
+- (MASConstraint *)trailingMargin;
+- (MASConstraint *)centerXWithinMargins;
+- (MASConstraint *)centerYWithinMargins;
+
+#endif
+
+
 /**
  *	Sets the constraint debug name
  */

@@ -208,6 +208,42 @@
     return [self addConstraintWithLayoutAttribute:NSLayoutAttributeBaseline];
 }
 
+#if TARGET_OS_IPHONE
+
+- (MASConstraint *)leftMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeLeftMargin];
+}
+
+- (MASConstraint *)rightMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeRightMargin];
+}
+
+- (MASConstraint *)topMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeTopMargin];
+}
+
+- (MASConstraint *)bottomMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeBottomMargin];
+}
+
+- (MASConstraint *)leadingMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeLeadingMargin];
+}
+
+- (MASConstraint *)trailingMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeTrailingMargin];
+}
+
+- (MASConstraint *)centerXWithinMargins {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeCenterXWithinMargins];
+}
+
+- (MASConstraint *)centerYWithinMargins {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeCenterYWithinMargins];
+}
+
+#endif
+
 #pragma mark - Abstract
 
 - (MASConstraint * (^)(CGFloat multiplier))multipliedBy { MASMethodNotImplemented(); }

@@ -21,6 +21,20 @@ typedef NS_OPTIONS(NSInteger, MASAttribute) {
     MASAttributeCenterX = 1 << NSLayoutAttributeCenterX,
     MASAttributeCenterY = 1 << NSLayoutAttributeCenterY,
     MASAttributeBaseline = 1 << NSLayoutAttributeBaseline,
+    
+#if TARGET_OS_IPHONE
+    
+    MASAttributeLeftMargin = 1 << NSLayoutAttributeLeftMargin,
+    MASAttributeRightMargin = 1 << NSLayoutAttributeRightMargin,
+    MASAttributeTopMargin = 1 << NSLayoutAttributeTopMargin,
+    MASAttributeBottomMargin = 1 << NSLayoutAttributeBottomMargin,
+    MASAttributeLeadingMargin = 1 << NSLayoutAttributeLeadingMargin,
+    MASAttributeTrailingMargin = 1 << NSLayoutAttributeTrailingMargin,
+    MASAttributeCenterXWithinMargins = 1 << NSLayoutAttributeCenterXWithinMargins,
+    MASAttributeCenterYWithinMargins = 1 << NSLayoutAttributeCenterYWithinMargins,
+
+#endif
+    
 };
 
 /**
@@ -46,6 +60,19 @@ typedef NS_OPTIONS(NSInteger, MASAttribute) {
 @property (nonatomic, strong, readonly) MASConstraint *centerY;
 @property (nonatomic, strong, readonly) MASConstraint *baseline;
 
+#if TARGET_OS_IPHONE
+
+@property (nonatomic, strong, readonly) MASConstraint *leftMargin;
+@property (nonatomic, strong, readonly) MASConstraint *rightMargin;
+@property (nonatomic, strong, readonly) MASConstraint *topMargin;
+@property (nonatomic, strong, readonly) MASConstraint *bottomMargin;
+@property (nonatomic, strong, readonly) MASConstraint *leadingMargin;
+@property (nonatomic, strong, readonly) MASConstraint *trailingMargin;
+@property (nonatomic, strong, readonly) MASConstraint *centerXWithinMargins;
+@property (nonatomic, strong, readonly) MASConstraint *centerYWithinMargins;
+
+#endif
+
 /**
  *  Returns a block which creates a new MASCompositeConstraint with the first item set
  *  to the makers associated view and children corresponding to the set bits in the

@@ -75,7 +75,15 @@
 }
 
 - (MASConstraint *)addConstraintWithAttributes:(MASAttribute)attrs {
-    __unused MASAttribute anyAttribute = MASAttributeLeft | MASAttributeRight | MASAttributeTop | MASAttributeBottom | MASAttributeLeading | MASAttributeTrailing | MASAttributeWidth | MASAttributeHeight | MASAttributeCenterX | MASAttributeCenterY | MASAttributeBaseline;
+    __unused MASAttribute anyAttribute = (MASAttributeLeft | MASAttributeRight | MASAttributeTop | MASAttributeBottom | MASAttributeLeading
+                                          | MASAttributeTrailing | MASAttributeWidth | MASAttributeHeight | MASAttributeCenterX
+                                          | MASAttributeCenterY | MASAttributeBaseline
+#if TARGET_OS_IPHONE
+                                          | MASAttributeLeftMargin | MASAttributeRightMargin | MASAttributeTopMargin | MASAttributeBottomMargin
+                                          | MASAttributeLeadingMargin | MASAttributeTrailingMargin | MASAttributeCenterXWithinMargins
+                                          | MASAttributeCenterYWithinMargins
+#endif
+                                          );
     
     NSAssert((attrs & anyAttribute) != 0, @"You didn't pass any attribute to make.attributes(...)");
     
@@ -93,6 +101,19 @@
     if (attrs & MASAttributeCenterY) [attributes addObject:self.view.mas_centerY];
     if (attrs & MASAttributeBaseline) [attributes addObject:self.view.mas_baseline];
     
+#if TARGET_OS_IPHONE
+    
+    if (attrs & MASAttributeLeftMargin) [attributes addObject:self.view.mas_leftMargin];
+    if (attrs & MASAttributeRightMargin) [attributes addObject:self.view.mas_rightMargin];
+    if (attrs & MASAttributeTopMargin) [attributes addObject:self.view.mas_topMargin];
+    if (attrs & MASAttributeBottomMargin) [attributes addObject:self.view.mas_bottomMargin];
+    if (attrs & MASAttributeLeadingMargin) [attributes addObject:self.view.mas_leadingMargin];
+    if (attrs & MASAttributeTrailingMargin) [attributes addObject:self.view.mas_trailingMargin];
+    if (attrs & MASAttributeCenterXWithinMargins) [attributes addObject:self.view.mas_centerXWithinMargins];
+    if (attrs & MASAttributeCenterYWithinMargins) [attributes addObject:self.view.mas_centerYWithinMargins];
+    
+#endif
+    
     NSMutableArray *children = [NSMutableArray arrayWithCapacity:attributes.count];
     
     for (MASViewAttribute *a in attributes) {
@@ -161,6 +182,42 @@
     };
 }
 
+#if TARGET_OS_IPHONE
+
+- (MASConstraint *)leftMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeLeftMargin];
+}
+
+- (MASConstraint *)rightMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeRightMargin];
+}
+
+- (MASConstraint *)topMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeTopMargin];
+}
+
+- (MASConstraint *)bottomMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeBottomMargin];
+}
+
+- (MASConstraint *)leadingMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeLeadingMargin];
+}
+
+- (MASConstraint *)trailingMargin {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeTrailingMargin];
+}
+
+- (MASConstraint *)centerXWithinMargins {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeCenterXWithinMargins];
+}
+
+- (MASConstraint *)centerYWithinMargins {
+    return [self addConstraintWithLayoutAttribute:NSLayoutAttributeCenterYWithinMargins];
+}
+
+#endif
+
 
 #pragma mark - composite Attributes
 

@@ -43,6 +43,18 @@
             @(NSLayoutAttributeCenterX)  : @"centerX",
             @(NSLayoutAttributeCenterY)  : @"centerY",
             @(NSLayoutAttributeBaseline) : @"baseline",
+            
+#if TARGET_OS_IPHONE
+            @(NSLayoutAttributeLeftMargin)           : @"leftMargin",
+            @(NSLayoutAttributeRightMargin)          : @"rightMargin",
+            @(NSLayoutAttributeTopMargin)            : @"topMargin",
+            @(NSLayoutAttributeBottomMargin)         : @"bottomMargin",
+            @(NSLayoutAttributeLeadingMargin)        : @"leadingMargin",
+            @(NSLayoutAttributeTrailingMargin)       : @"trailingMargin",
+            @(NSLayoutAttributeCenterXWithinMargins) : @"centerXWithinMargins",
+            @(NSLayoutAttributeCenterYWithinMargins) : @"centerYWithinMargins",
+#endif
+            
         };
     
     });

@@ -32,6 +32,19 @@
 @property (nonatomic, strong, readonly) MASViewAttribute *mas_baseline;
 @property (nonatomic, strong, readonly) MASViewAttribute *(^mas_attribute)(NSLayoutAttribute attr);
 
+#if TARGET_OS_IPHONE
+
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_leftMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_rightMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_topMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_bottomMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_leadingMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_trailingMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_centerXWithinMargins;
+@property (nonatomic, strong, readonly) MASViewAttribute *mas_centerYWithinMargins;
+
+#endif
+
 /**
  *	a key to associate with this view
  */

@@ -87,6 +87,42 @@
     };
 }
 
+#if TARGET_OS_IPHONE
+
+- (MASViewAttribute *)mas_leftMargin {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeLeftMargin];
+}
+
+- (MASViewAttribute *)mas_rightMargin {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeRightMargin];
+}
+
+- (MASViewAttribute *)mas_topMargin {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeTopMargin];
+}
+
+- (MASViewAttribute *)mas_bottomMargin {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeBottomMargin];
+}
+
+- (MASViewAttribute *)mas_leadingMargin {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeLeadingMargin];
+}
+
+- (MASViewAttribute *)mas_trailingMargin {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeTrailingMargin];
+}
+
+- (MASViewAttribute *)mas_centerXWithinMargins {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeCenterXWithinMargins];
+}
+
+- (MASViewAttribute *)mas_centerYWithinMargins {
+    return [[MASViewAttribute alloc] initWithView:self layoutAttribute:NSLayoutAttributeCenterYWithinMargins];
+}
+
+#endif
+
 #pragma mark - associated properties
 
 - (id)mas_key {

@@ -29,6 +29,19 @@
 @property (nonatomic, strong, readonly) MASViewAttribute *baseline;
 @property (nonatomic, strong, readonly) MASViewAttribute *(^attribute)(NSLayoutAttribute attr);
 
+#if TARGET_OS_IPHONE
+
+@property (nonatomic, strong, readonly) MASViewAttribute *leftMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *rightMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *topMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *bottomMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *leadingMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *trailingMargin;
+@property (nonatomic, strong, readonly) MASViewAttribute *centerXWithinMargins;
+@property (nonatomic, strong, readonly) MASViewAttribute *centerYWithinMargins;
+
+#endif
+
 - (NSArray *)makeConstraints:(void(^)(MASConstraintMaker *make))block;
 - (NSArray *)updateConstraints:(void(^)(MASConstraintMaker *make))block;
 - (NSArray *)remakeConstraints:(void(^)(MASConstraintMaker *make))block;
@@ -54,6 +67,19 @@ MAS_ATTR_FORWARD(centerX);
 MAS_ATTR_FORWARD(centerY);
 MAS_ATTR_FORWARD(baseline);
 
+#if TARGET_OS_IPHONE
+
+MAS_ATTR_FORWARD(leftMargin);
+MAS_ATTR_FORWARD(rightMargin);
+MAS_ATTR_FORWARD(topMargin);
+MAS_ATTR_FORWARD(bottomMargin);
+MAS_ATTR_FORWARD(leadingMargin);
+MAS_ATTR_FORWARD(trailingMargin);
+MAS_ATTR_FORWARD(centerXWithinMargins);
+MAS_ATTR_FORWARD(centerYWithinMargins);
+
+#endif
+
 - (MASViewAttribute *(^)(NSLayoutAttribute))attribute {
     return [self mas_attribute];
 }