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Optional explicit vertical order in VerticalStackLayout #2

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Optional explicit vertical order in VerticalStackLayout #2

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1 change: 1 addition & 0 deletions UsefulBits/UIKit/VerticalStackLayout.h
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@

@property (nonatomic, assign) CGFloat padding;
@property (nonatomic, assign) UIEdgeInsets contentInsets;
@property (nonatomic, copy) NSArray *(^verticalOrder)(NSArray *subviews);

- (id)initWithPadding:(CGFloat)padding contentInsets:(UIEdgeInsets)insets;

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8 changes: 6 additions & 2 deletions UsefulBits/UIKit/VerticalStackLayout.m
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,9 @@ - (id)initWithPadding:(CGFloat)padding contentInsets:(UIEdgeInsets)insets;
{
[self setPadding:padding];
[self setContentInsets:insets];
[self setVerticalOrder:^NSArray *(NSArray *subviews) {
return subviews;
}];
}

return self;
Expand All @@ -65,7 +68,8 @@ - (void)layout:(UIView *)view action:(void (^) (UIView *subview, CGRect subviewF
CGRect content_bounds = UIEdgeInsetsInsetRect([view bounds], [self contentInsets]);
CGFloat width = CGRectGetWidth(content_bounds);

CGFloat subview_height = [[[[view subviews] trunk] reduce: ^ id (id height, id subview) {
NSArray *ordered_views = [self verticalOrder]([view subviews]);
CGFloat subview_height = [[[ordered_views trunk] reduce: ^ id (id height, id subview) {
CGSize subview_size = [subview sizeThatFits:CGSizeMake(width, 0.)];
CGRect subview_frame = CGRectMake(CGRectGetMinX(content_bounds), [height floatValue], width, subview_size.height);

Expand All @@ -76,7 +80,7 @@ - (void)layout:(UIView *)view action:(void (^) (UIView *subview, CGRect subviewF
return [NSNumber numberWithFloat:bottom];
} initial:[NSNumber numberWithFloat:CGRectGetMinY(content_bounds)]] floatValue];

UIView *last = [[view subviews] last];
UIView *last = [ordered_views last];
CGSize last_size = [last sizeThatFits:CGSizeMake(width, 0.)];
CGRect last_frame = CGRectMake(CGRectGetMinX(content_bounds), subview_height, width, last_size.height);

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