QGeometry.h

 //  QGeometry.h
 //  QMapKit
 //
 //
 //  Created by jeff on 14-8-4.
 //  Copyright (c) 2014年 Tencent. All rights reserved.



#import <CoreGraphics/CoreGraphics.h>
#import <CoreLocation/CoreLocation.h>
#import <UIKit/UIKit.h>
#import "QFoundation.h"

    typedef struct {
        CLLocationDegrees latitudeDelta;
        CLLocationDegrees longitudeDelta;
    } QCoordinateSpan;
    
    typedef struct {
        CLLocationCoordinate2D center;
        QCoordinateSpan span;
    } QCoordinateRegion;

    static inline QCoordinateSpan QCoordinateSpanMake(CLLocationDegrees latitudeDelta, CLLocationDegrees longitudeDelta)
    {
        return (QCoordinateSpan){latitudeDelta, longitudeDelta};
    }

    static inline QCoordinateRegion QCoordinateRegionMake(CLLocationCoordinate2D centerCoordinate, QCoordinateSpan span)
    {
        return (QCoordinateRegion){centerCoordinate, span};
    }

    Q_EXTERN QCoordinateRegion QCoordinateRegionMakeWithDistance(CLLocationCoordinate2D centerCoordinate, CLLocationDistance latitudinalMeters, CLLocationDistance longitudinalMeters);

    typedef struct {
        double x;
        double y;
    } QMapPoint;

    typedef struct {
        double width;
        double height;
    } QMapSize;

    typedef struct {
        QMapPoint origin;
        QMapSize size;
    } QMapRect;
    
    Q_EXTERN const QMapRect QMapRectNull;
    
    typedef CGFloat QZoomScale;

    Q_EXTERN QMapPoint QMapPointForCoordinate(CLLocationCoordinate2D coordinate);

    Q_EXTERN CLLocationCoordinate2D QCoordinateForMapPoint(QMapPoint mapPoint);

    Q_EXTERN QCoordinateRegion QCoordinateRegionForMapRect(QMapRect rect);

    Q_EXTERN QMapRect QMapRectForCoordinateRegion(QCoordinateRegion region);

    Q_EXTERN CLLocationDistance QMetersPerMapPointAtLatitude(CLLocationDegrees latitude);

    Q_EXTERN double QMapPointsPerMeterAtLatitude(CLLocationDegrees latitude);

    Q_EXTERN CLLocationDistance QMetersBetweenMapPoints(QMapPoint a, QMapPoint b);

    Q_EXTERN double QAreaBetweenCoordinates(CLLocationCoordinate2D leftTop, CLLocationCoordinate2D rightBottom);

    Q_EXTERN BOOL QMapRectContainsPoint(QMapRect rect, QMapPoint point);
    
    Q_EXTERN BOOL QMapRectIntersectsRect(QMapRect rect1, QMapRect rect2);
    
    Q_EXTERN BOOL QMapRectContainsRect(QMapRect rect1, QMapRect rect2);
    
    Q_EXTERN QMapRect QMapRectUnion(QMapRect rect1, QMapRect rect2);
    
    Q_EXTERN QMapRect QMapRectIntersection(QMapRect rect1, QMapRect rect2);
    
    Q_EXTERN BOOL QCircleContainsPoint(QMapPoint point, QMapPoint center, double radius);
    
    Q_EXTERN BOOL QCircleContainsCoordinate(CLLocationCoordinate2D point, CLLocationCoordinate2D center, double radius);
    
    Q_EXTERN BOOL QPolygonContainsPoint(QMapPoint point, QMapPoint *polygon, NSUInteger count);
    
    Q_EXTERN BOOL QPolygonContainsCoordinate(CLLocationCoordinate2D point, CLLocationCoordinate2D *polygon, NSUInteger count);
    
    static inline QMapPoint QMapPointMake(double x, double y)
    {
        return (QMapPoint){x, y};
    }
    
    static inline QMapSize QMapSizeMake(double width, double height)
    {
        return (QMapSize){width, height};
    }

    static inline QMapRect QMapRectMake(double x, double y, double width, double height)
    {
        return (QMapRect){QMapPointMake(x, y), QMapSizeMake(width, height)};
    }

    static inline QMapRect QMapRectMakeFromCGRect(CGRect rect)
    {
        return QMapRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
    }

    static inline double QMapRectGetMinX(QMapRect rect)
    {
        return rect.origin.x;
    }

    static inline double QMapRectGetMinY(QMapRect rect)
    {
        return rect.origin.y;
    }

    static inline double QMapRectGetMidX(QMapRect rect)
    {
        return rect.origin.x + rect.size.width / 2.0;
    }

    static inline double QMapRectGetMidY(QMapRect rect)
    {
        return rect.origin.y + rect.size.height / 2.0;
    }

    static inline double QMapRectGetMaxX(QMapRect rect)
    {
        return rect.origin.x + rect.size.width;
    }

    static inline double QMapRectGetMaxY(QMapRect rect)
    {
        return rect.origin.y + rect.size.height;
    }

    static inline double QMapRectGetWidth(QMapRect rect)
    {
        return rect.size.width;
    }

    static inline double QMapRectGetHeight(QMapRect rect)
    {
        return rect.size.height;
    }

    static inline BOOL QMapPointEqualToPoint(QMapPoint point1, QMapPoint point2) {
        return point1.x == point2.x && point1.y == point2.y;
    }
    
    static inline BOOL QMapSizeEqualToSize(QMapSize size1, QMapSize size2) {
        return size1.width == size2.width && size1.height == size2.height;
    }
    
    static inline BOOL QMapRectEqualToRect(QMapRect rect1, QMapRect rect2) {
        return
        QMapPointEqualToPoint(rect1.origin, rect2.origin) &&
        QMapSizeEqualToSize(rect1.size, rect2.size);
    }

    static inline BOOL QMapRectIsNull(QMapRect rect) {
        return isinf(rect.origin.x) || isinf(rect.origin.y);
    }
    
    static inline BOOL QMapRectIsEmpty(QMapRect rect) {
        return QMapRectIsNull(rect) || (rect.size.width == 0.0 && rect.size.height == 0.0);
    }
    
    static inline NSString *QStringFromMapPoint(QMapPoint point) {
        return [NSString stringWithFormat:@"{%.1f, %.1f}", point.x, point.y];
    }

    static inline NSString *QStringFromMapSize(QMapSize size) {
        return [NSString stringWithFormat:@"{%.1f, %.1f}", size.width, size.height];
    }

    static inline NSString *QStringFromMapRect(QMapRect rect) {
        return [NSString stringWithFormat:@"{%@, %@}", QStringFromMapPoint(rect.origin), QStringFromMapSize(rect.size)];
    }


Q_EXTERN @interface NSValue (NSValueQGeometryExtensions)

+ (NSValue *)valueWithQMapPoint:(QMapPoint)mapPoint;

+ (NSValue *)valueWithQMapSize:(QMapSize)mapSize;

+ (NSValue *)valueWithQMapRect:(QMapRect)mapRect;

+ (NSValue *)valueWithCoordinate:(CLLocationCoordinate2D)coordinate;

- (QMapPoint)QMapPointValue;

- (QMapSize)QMapSizeValue;

- (QMapRect)QMapRectValue;

- (CLLocationCoordinate2D)coordinateValue;

@end