// 31 july 2015
#import <Cocoa/Cocoa.h>
#import <stdint.h>

typedef struct tAutoLayoutParams tAutoLayoutParams;

// TODO stretchy across both dimensions
// for a vertical box, the horizontal width should be variable
struct tAutoLayoutParams {
	NSMutableArray *horz;
	NSMutableArray *horzAttachLeft;
	NSMutableArray *horzAttachRight;
	BOOL horzFirst;
	BOOL horzLast;
	NSMutableArray *vert;
	NSMutableArray *vertAttachTop;
	NSMutableArray *vertAttachBottom;
	BOOL vertFirst;
	BOOL vertLast;
	NSMutableDictionary *views;
	uintmax_t n;
	BOOL horzStretchy;
	BOOL horzFirstStretchy;
	uintmax_t horzStretchyTo;
	BOOL vertStretchy;
	BOOL vertFirstStretchy;
	uintmax_t vertStretchyTo;
};

@protocol tControl
@required
- (void)tSetParent:(id<tControl>)p addToView:(NSView *)v relayout:(BOOL)relayout;
- (void)tFillAutoLayout:(tAutoLayoutParams *)p;
- (void)tRelayout;
@end

@interface tWindow : NSObject<tControl>
- (void)tSetControl:(id<tControl>)cc;
- (void)tSetMargined:(BOOL)m;
- (void)tShow;
@end

@interface tBox : NSObject<tControl>
- (id)tInitVertical:(BOOL)vert;
- (void)tAddControl:(id<tControl>)c stretchy:(BOOL)s;
@end

@interface tButton : NSObject<tControl>
- (id)tInitWithText:(NSString *)text;
@end

@interface tSpinbox : NSObject<tControl>
@end

extern NSString *tAutoLayoutKey(uintmax_t);