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#import "MGLMultiPoint_Private.h"
#import "MGLGeometry_Private.h"
#import "MGLTypes.h"
#import <mbgl/util/geo.hpp>
mbgl::Color MGLColorObjectFromCGColorRef(CGColorRef cgColor)
{
if (!cgColor) return { 0, 0, 0, 0 };
NSCAssert(CGColorGetNumberOfComponents(cgColor) >= 4, @"Color must have at least 4 components");
const CGFloat *components = CGColorGetComponents(cgColor);
return { (float)components[0], (float)components[1], (float)components[2], (float)components[3] };
}
@implementation MGLMultiPoint
{
size_t _count;
MGLCoordinateBounds _bounds;
}
- (instancetype)initWithCoordinates:(CLLocationCoordinate2D *)coords count:(NSUInteger)count
{
self = [super init];
if (self)
{
[self setupWithCoordinates:coords count:count];
}
return self;
}
- (void)setupWithCoordinates:(CLLocationCoordinate2D *)coords count:(NSUInteger)count
{
if (_coordinates) free(_coordinates);
_count = count;
_coordinates = (CLLocationCoordinate2D *)malloc(_count * sizeof(CLLocationCoordinate2D));
mbgl::LatLngBounds bounds = mbgl::LatLngBounds::empty();
for (NSUInteger i = 0; i < _count; i++)
{
_coordinates[i] = coords[i];
bounds.extend(mbgl::LatLng(coords[i].latitude, coords[i].longitude));
}
_bounds = MGLCoordinateBoundsFromLatLngBounds(bounds);
}
- (void)dealloc
{
free(_coordinates);
}
- (CLLocationCoordinate2D)coordinate
{
assert(_count > 0);
return CLLocationCoordinate2DMake(_coordinates[0].latitude, _coordinates[0].longitude);
}
- (NSUInteger)pointCount
{
return _count;
}
+ (NS_SET_OF(NSString *) *)keyPathsForValuesAffectingPointCount
{
return [NSSet setWithObjects:@"coordinates", nil];
}
- (void)getCoordinates:(CLLocationCoordinate2D *)coords range:(NSRange)range
{
if (range.location + range.length > _count)
{
[NSException raise:NSRangeException
format:@"Invalid coordinate range %@ extends beyond current coordinate count of %zu",
NSStringFromRange(range), _count];
}
NSUInteger index = 0;
for (NSUInteger i = range.location; i < range.location + range.length; i++)
{
coords[index] = _coordinates[i];
index++;
}
}
- (void)replaceCoordinatesInRange:(NSRange)range withCoordinates:(CLLocationCoordinate2D *)coords
{
if ((coords >= _coordinates && coords < _coordinates + _count) ||
(coords + range.length >= _coordinates && coords + range.length < _coordinates + _count))
{
[NSException raise:NSRangeException format:@"Reuse of existing coordinates array %p not supported", coords];
}
else if (range.length == 0)
{
[NSException raise:NSRangeException format:@"Empty coordinate range %@", NSStringFromRange(range)];
}
else if (range.location > _count)
{
[NSException raise:NSRangeException
format:@"Invalid range %@ for existing coordinate count %zu",
NSStringFromRange(range), _count];
}
[self willChangeValueForKey:@"coordinates"];
if (NSMaxRange(range) <= _count)
{
// replacing existing coordinate(s)
memcpy(_coordinates + range.location, coords, range.length * sizeof(CLLocationCoordinate2D));
}
else
{
// appending new coordinate(s)
NSUInteger newCount = NSMaxRange(range);
CLLocationCoordinate2D *newCoordinates = (CLLocationCoordinate2D *)malloc(newCount * sizeof(CLLocationCoordinate2D));
memcpy(newCoordinates, _coordinates, fmin(_count, range.location) * sizeof(CLLocationCoordinate2D));
memcpy(newCoordinates + range.location, coords, range.length * sizeof(CLLocationCoordinate2D));
[self setupWithCoordinates:newCoordinates count:newCount];
free(newCoordinates);
}
[self didChangeValueForKey:@"coordinates"];
}
- (MGLCoordinateBounds)overlayBounds
{
return _bounds;
}
- (BOOL)intersectsOverlayBounds:(MGLCoordinateBounds)overlayBounds
{
return MGLLatLngBoundsFromCoordinateBounds(_bounds).intersects(MGLLatLngBoundsFromCoordinateBounds(overlayBounds));
}
- (mbgl::Annotation)annotationObjectWithDelegate:(__unused id <MGLMultiPointDelegate>)delegate
{
NSAssert(NO, @"Cannot add an annotation from an instance of %@", NSStringFromClass([self class]));
return mbgl::SymbolAnnotation({mbgl::Point<double>()});
}
- (NSString *)description
{
return [NSString stringWithFormat:@"<%@: %p; count = %lu; bounds = %@>",
NSStringFromClass([self class]), (void *)self, (unsigned long)_count, MGLStringFromCoordinateBounds(_bounds)];
}
@end
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