RMMapOverlayView.m
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//
// RMMapOverlayView.m
// MapView
//
// Created by Thomas Rasch on 25.08.11.
// Copyright (c) 2011 Alpstein. All rights reserved.
//
#import "RMMapOverlayView.h"
#import "RMMarker.h"
#import "RMAnnotation.h"
#import "RMPixel.h"
#import "RMMapView.h"
@implementation RMMapOverlayView
+ (Class)layerClass
{
return [CAScrollLayer class];
}
- (id)initWithFrame:(CGRect)frame
{
if (!(self = [super initWithFrame:frame]))
return nil;
self.layer.masksToBounds = NO;
return self;
}
- (unsigned)sublayersCount
{
return [self.layer.sublayers count];
}
- (void)addSublayer:(CALayer *)aLayer
{
[self.layer addSublayer:aLayer];
}
- (void)insertSublayer:(CALayer *)aLayer atIndex:(unsigned)index
{
[self.layer insertSublayer:aLayer atIndex:index];
}
- (void)insertSublayer:(CALayer *)aLayer below:(CALayer *)sublayer
{
[self.layer insertSublayer:aLayer below:sublayer];
}
- (void)insertSublayer:(CALayer *)aLayer above:(CALayer *)sublayer
{
[self.layer insertSublayer:aLayer above:sublayer];
}
- (void)moveLayersBy:(CGPoint)delta
{
[self.layer scrollPoint:CGPointMake(-delta.x, -delta.y)];
}
- (CALayer *)overlayHitTest:(CGPoint)point
{
RMMapView *mapView = ((RMMapView *)self.superview);
// here we hide the accuracy circle & tracking halo to exclude from hit
// testing, as well as be sure to show the user location (even if in
// heading mode) to ensure hits on it
//
RMAnnotation *userLocationAnnotation = (RMAnnotation *)mapView.userLocation;
RMAnnotation *accuracyCircleAnnotation = nil;
RMAnnotation *trackingHaloAnnotation = nil;
NSArray *matches = nil;
matches = [mapView.annotations filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"annotationType = %@", kRMAccuracyCircleAnnotationTypeName]];
if ([matches count])
accuracyCircleAnnotation = [matches lastObject];
matches = [mapView.annotations filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"annotationType = %@", kRMTrackingHaloAnnotationTypeName]];
if ([matches count])
trackingHaloAnnotation = [matches lastObject];
BOOL userLocationFlag;
BOOL accuracyCircleFlag;
BOOL trackingHaloFlag;
if (userLocationAnnotation)
{
userLocationFlag = userLocationAnnotation.layer.isHidden;
userLocationAnnotation.layer.hidden = NO;
}
if (accuracyCircleAnnotation)
{
accuracyCircleFlag = accuracyCircleAnnotation.layer.isHidden;
accuracyCircleAnnotation.layer.hidden = YES;
}
if (trackingHaloAnnotation)
{
trackingHaloFlag = trackingHaloAnnotation.layer.isHidden;
trackingHaloAnnotation.layer.hidden = YES;
}
CALayer *hit = [self.layer hitTest:point];
if (userLocationAnnotation)
userLocationAnnotation.layer.hidden = userLocationFlag;
if (accuracyCircleAnnotation)
accuracyCircleAnnotation.layer.hidden = accuracyCircleFlag;
if (trackingHaloAnnotation)
trackingHaloAnnotation.layer.hidden = trackingHaloFlag;
return hit;
}
@end