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RMMapView.m
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RMMapView.m
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//
// RMMapView.m
//
// Copyright (c) 2008-2013, Route-Me Contributors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
#import "RMMapView.h"
#import "RMMapViewDelegate.h"
#import "RMPixel.h"
#import "RMFoundation.h"
#import "RMProjection.h"
#import "RMMarker.h"
#import "RMCircle.h"
#import "RMShape.h"
#import "RMAnnotation.h"
#import "RMQuadTree.h"
#import "RMPointAnnotation.h"
#import "RMFractalTileProjection.h"
#import "RMTileCache.h"
#import "RMTileSource.h"
#import "RMMapboxSource.h"
#import "RMMapTiledLayerView.h"
#import "RMMapOverlayView.h"
#import "RMLoadingTileView.h"
#import "RMUserLocation.h"
#import "RMUserTrackingBarButtonItem.h"
#import "RMAttributionViewController.h"
#import "SMCalloutView.h"
#pragma mark --- begin constants ----
#define kZoomRectPixelBuffer 150.0
#define kDefaultInitialLatitude 38.913175
#define kDefaultInitialLongitude -77.032458
#define kDefaultMinimumZoomLevel 0.0
#define kDefaultMaximumZoomLevel 25.0
#define kDefaultInitialZoomLevel 11.0
#pragma mark --- end constants ----
@interface RMMapView (PrivateMethods) <UIScrollViewDelegate,
UIGestureRecognizerDelegate,
RMMapScrollViewDelegate,
CLLocationManagerDelegate,
SMCalloutViewDelegate,
UIPopoverControllerDelegate,
UIViewControllerTransitioningDelegate,
UIViewControllerAnimatedTransitioning>
@property (nonatomic, assign) UIViewController *viewControllerPresentingAttribution;
@property (nonatomic, retain) RMUserLocation *userLocation;
- (void)createMapView;
- (void)registerMoveEventByUser:(BOOL)wasUserEvent;
- (void)completeMoveEventAfterDelay:(NSTimeInterval)delay;
- (void)registerZoomEventByUser:(BOOL)wasUserEvent;
- (void)completeZoomEventAfterDelay:(NSTimeInterval)delay;
- (void)correctPositionOfAllAnnotations;
- (void)correctPositionOfAllAnnotationsIncludingInvisibles:(BOOL)correctAllLayers animated:(BOOL)animated;
- (void)correctOrderingOfAllAnnotations;
- (void)updateHeadingForDeviceOrientation;
@end
#pragma mark -
@interface RMUserLocation (PrivateMethods)
@property (nonatomic, getter=isUpdating) BOOL updating;
@property (nonatomic, retain) CLLocation *location;
@property (nonatomic, retain) CLHeading *heading;
@property (nonatomic, assign) BOOL hasCustomLayer;
- (void)updateTintColor;
@end
#pragma mark -
@interface RMAnnotation (PrivateMethods)
@property (nonatomic, assign) BOOL isUserLocationAnnotation;
@end
#pragma mark -
@interface RMUserTrackingBarButtonItem (PrivateMethods)
@property (nonatomic, assign) UIViewTintAdjustmentMode tintAdjustmentMode;
@end
#pragma mark -
@implementation RMMapView
{
BOOL _delegateHasBeforeMapMove;
BOOL _delegateHasAfterMapMove;
BOOL _delegateHasBeforeMapZoom;
BOOL _delegateHasAfterMapZoom;
BOOL _delegateHasMapViewRegionDidChange;
BOOL _delegateHasDoubleTapOnMap;
BOOL _delegateHasSingleTapOnMap;
BOOL _delegateHasSingleTapTwoFingersOnMap;
BOOL _delegateHasLongPressOnMap;
BOOL _delegateHasTapOnAnnotation;
BOOL _delegateHasDoubleTapOnAnnotation;
BOOL _delegateHasLongPressOnAnnotation;
BOOL _delegateHasTapOnCalloutAccessoryControlForAnnotation;
BOOL _delegateHasTapOnLabelForAnnotation;
BOOL _delegateHasDoubleTapOnLabelForAnnotation;
BOOL _delegateHasShouldDragAnnotation;
BOOL _delegateHasDidChangeDragState;
BOOL _delegateHasLayerForAnnotation;
BOOL _delegateHasAnnotationSorting;
BOOL _delegateHasWillHideLayerForAnnotation;
BOOL _delegateHasDidHideLayerForAnnotation;
BOOL _delegateHasDidSelectAnnotation;
BOOL _delegateHasDidDeselectAnnotation;
BOOL _delegateHasWillStartLocatingUser;
BOOL _delegateHasDidStopLocatingUser;
BOOL _delegateHasDidUpdateUserLocation;
BOOL _delegateHasDidFailToLocateUserWithError;
BOOL _delegateHasDidChangeUserTrackingMode;
UIView *_backgroundView;
RMMapScrollView *_mapScrollView;
RMMapOverlayView *_overlayView;
UIView *_tiledLayersSuperview;
RMLoadingTileView *_loadingTileView;
RMProjection *_projection;
RMFractalTileProjection *_mercatorToTileProjection;
RMTileSourcesContainer *_tileSourcesContainer;
NSMutableArray *_earlyTileSources;
NSMutableSet *_annotations;
NSMutableSet *_visibleAnnotations;
BOOL _constrainMovement, _constrainMovementByUser;
RMProjectedRect _constrainingProjectedBounds, _constrainingProjectedBoundsByUser;
double _metersPerPixel;
float _zoom, _lastZoom;
CGPoint _lastContentOffset, _accumulatedDelta;
CGSize _lastContentSize;
BOOL _mapScrollViewIsZooming;
BOOL _draggingEnabled, _bouncingEnabled;
RMAnnotation *_draggedAnnotation;
CGPoint _dragOffset;
CLLocationManager *_locationManager;
RMAnnotation *_accuracyCircleAnnotation;
RMAnnotation *_trackingHaloAnnotation;
UIImageView *_userHeadingTrackingView;
RMUserTrackingBarButtonItem *_userTrackingBarButtonItem;
__weak UIViewController *_viewControllerPresentingAttribution;
UIButton *_attributionButton;
UIPopoverController *_attributionPopover;
CGAffineTransform _mapTransform;
CATransform3D _annotationTransform;
NSOperationQueue *_moveDelegateQueue;
NSOperationQueue *_zoomDelegateQueue;
UIImageView *_logoBug;
UIButton *_compassButton;
RMAnnotation *_currentAnnotation;
SMCalloutView *_currentCallout;
BOOL _rotateAtMinZoom;
}
@synthesize decelerationMode = _decelerationMode;
@synthesize zoomingInPivotsAroundCenter = _zoomingInPivotsAroundCenter;
@synthesize minZoom = _minZoom, maxZoom = _maxZoom;
@synthesize screenScale = _screenScale;
@synthesize tileCache = _tileCache;
@synthesize quadTree = _quadTree;
@synthesize clusteringEnabled = _clusteringEnabled;
@synthesize positionClusterMarkersAtTheGravityCenter = _positionClusterMarkersAtTheGravityCenter;
@synthesize clusterMarkerSize = _clusterMarkerSize, clusterAreaSize = _clusterAreaSize;
@synthesize adjustTilesForRetinaDisplay = _adjustTilesForRetinaDisplay;
@synthesize userLocation = _userLocation;
@synthesize showsUserLocation = _showsUserLocation;
@synthesize userTrackingMode = _userTrackingMode;
@synthesize displayHeadingCalibration = _displayHeadingCalibration;
@synthesize missingTilesDepth = _missingTilesDepth;
@synthesize debugTiles = _debugTiles;
@synthesize hideAttribution = _hideAttribution;
@synthesize showLogoBug = _showLogoBug;
#pragma mark -
#pragma mark Initialization
- (void)performInitializationWithTilesource:(id <RMTileSource>)newTilesource
centerCoordinate:(CLLocationCoordinate2D)initialCenterCoordinate
zoomLevel:(float)initialTileSourceZoomLevel
maxZoomLevel:(float)initialTileSourceMaxZoomLevel
minZoomLevel:(float)initialTileSourceMinZoomLevel
backgroundImage:(UIImage *)backgroundImage
{
_constrainMovement = _constrainMovementByUser = _bouncingEnabled = _zoomingInPivotsAroundCenter = NO;
_draggingEnabled = YES;
_draggedAnnotation = nil;
self.backgroundColor = (RMPostVersion6 ? [UIColor colorWithRed:0.970 green:0.952 blue:0.912 alpha:1.000] : [UIColor grayColor]);
self.clipsToBounds = YES;
_tileSourcesContainer = [RMTileSourcesContainer new];
_tiledLayersSuperview = nil;
_projection = nil;
_mercatorToTileProjection = nil;
_mapScrollView = nil;
_overlayView = nil;
_screenScale = [UIScreen mainScreen].scale;
_adjustTilesForRetinaDisplay = NO;
_missingTilesDepth = 1;
_debugTiles = NO;
_annotations = [NSMutableSet new];
_visibleAnnotations = [NSMutableSet new];
[self setQuadTree:[[RMQuadTree alloc] initWithMapView:self]];
_clusteringEnabled = NO;
_positionClusterMarkersAtTheGravityCenter = YES;
_clusterMarkerSize = CGSizeMake(100.0, 100.0);
_clusterAreaSize = CGSizeMake(150.0, 150.0);
_moveDelegateQueue = [NSOperationQueue new];
[_moveDelegateQueue setMaxConcurrentOperationCount:1];
_zoomDelegateQueue = [NSOperationQueue new];
[_zoomDelegateQueue setMaxConcurrentOperationCount:1];
[self setTileCache:[RMTileCache new]];
if (backgroundImage)
{
[self setBackgroundView:[[UIView alloc] initWithFrame:[self bounds]]];
self.backgroundView.layer.contents = (id)backgroundImage.CGImage;
}
else
{
[self setBackgroundView:nil];
}
if ([_earlyTileSources count])
{
for (id<RMTileSource>earlyTileSource in _earlyTileSources)
{
if (initialTileSourceMinZoomLevel < earlyTileSource.minZoom) initialTileSourceMinZoomLevel = earlyTileSource.minZoom;
if (initialTileSourceMaxZoomLevel > earlyTileSource.maxZoom) initialTileSourceMaxZoomLevel = earlyTileSource.maxZoom;
}
}
else
{
if (initialTileSourceMinZoomLevel < newTilesource.minZoom) initialTileSourceMinZoomLevel = newTilesource.minZoom;
if (initialTileSourceMaxZoomLevel > newTilesource.maxZoom) initialTileSourceMaxZoomLevel = newTilesource.maxZoom;
}
[self setTileSourcesMinZoom:initialTileSourceMinZoomLevel];
[self setTileSourcesMaxZoom:initialTileSourceMaxZoomLevel];
[self setTileSourcesZoom:initialTileSourceZoomLevel];
if ([_earlyTileSources count])
{
[self setTileSources:_earlyTileSources];
[_earlyTileSources removeAllObjects];
}
else
{
[self setTileSource:newTilesource];
}
[self setCenterCoordinate:initialCenterCoordinate animated:NO];
[self setDecelerationMode:RMMapDecelerationFast];
self.showLogoBug = YES;
if (RMPostVersion7)
{
_compassButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *compassImage = [RMMapView resourceImageNamed:@"Compass.png"];
_compassButton.frame = CGRectMake(0, 0, compassImage.size.width, compassImage.size.height);
[_compassButton setImage:compassImage forState:UIControlStateNormal];
_compassButton.alpha = 0;
[_compassButton addTarget:self action:@selector(tappedHeadingCompass:) forControlEvents:UIControlEventTouchUpInside];
UIView *container = [[UIView alloc] initWithFrame:CGRectMake(self.bounds.size.width - compassImage.size.width - 5, 5, compassImage.size.width, compassImage.size.height)];
container.translatesAutoresizingMaskIntoConstraints = NO;
[container addSubview:_compassButton];
[self addSubview:container];
}
self.displayHeadingCalibration = YES;
_mapTransform = CGAffineTransformIdentity;
_annotationTransform = CATransform3DIdentity;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(handleMemoryWarningNotification:)
name:UIApplicationDidReceiveMemoryWarningNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(handleWillChangeOrientationNotification:)
name:UIApplicationWillChangeStatusBarOrientationNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(handleDidChangeOrientationNotification:)
name:UIApplicationDidChangeStatusBarOrientationNotification
object:nil];
RMLog(@"Map initialised. tileSource:%@, minZoom:%f, maxZoom:%f, zoom:%f at {%f,%f}", newTilesource, self.minZoom, self.maxZoom, self.zoom, initialCenterCoordinate.longitude, initialCenterCoordinate.latitude);
[self setNeedsUpdateConstraints];
}
- (id)initWithFrame:(CGRect)frame
{
return [self initWithFrame:frame andTilesource:[RMMapboxSource new]];
}
- (id)initWithFrame:(CGRect)frame andTilesource:(id <RMTileSource>)newTilesource
{
return [self initWithFrame:frame
andTilesource:newTilesource
centerCoordinate:CLLocationCoordinate2DMake(kDefaultInitialLatitude, kDefaultInitialLongitude)
zoomLevel:kDefaultInitialZoomLevel
maxZoomLevel:kDefaultMaximumZoomLevel
minZoomLevel:kDefaultMinimumZoomLevel
backgroundImage:nil];
}
- (id)initWithFrame:(CGRect)frame
andTilesource:(id <RMTileSource>)newTilesource
centerCoordinate:(CLLocationCoordinate2D)initialCenterCoordinate
zoomLevel:(float)initialZoomLevel
maxZoomLevel:(float)maxZoomLevel
minZoomLevel:(float)minZoomLevel
backgroundImage:(UIImage *)backgroundImage
{
if (!newTilesource || !(self = [super initWithFrame:frame]))
return nil;
_earlyTileSources = [NSMutableArray array];
[self performInitializationWithTilesource:newTilesource
centerCoordinate:initialCenterCoordinate
zoomLevel:initialZoomLevel
maxZoomLevel:maxZoomLevel
minZoomLevel:minZoomLevel
backgroundImage:backgroundImage];
return self;
}
- (id)initWithCoder:(NSCoder *)decoder
{
if (![super initWithCoder:decoder])
return nil;
_earlyTileSources = [NSMutableArray array];
return self;
}
- (void)setFrame:(CGRect)frame
{
CGRect r = self.frame;
[super setFrame:frame];
// only change if the frame changes and not during initialization
if ( ! CGRectEqualToRect(r, frame))
{
RMProjectedPoint centerPoint = self.centerProjectedPoint;
CGRect bounds = CGRectMake(0, 0, frame.size.width, frame.size.height);
_backgroundView.frame = bounds;
_mapScrollView.frame = bounds;
_overlayView.frame = bounds;
[self setCenterProjectedPoint:centerPoint animated:NO];
[self correctPositionOfAllAnnotations];
self.minZoom = 0; // force new minZoom calculation
if (_loadingTileView)
_loadingTileView.mapZooming = NO;
}
}
+ (UIImage *)resourceImageNamed:(NSString *)imageName
{
if ( ! [[imageName pathExtension] length])
imageName = [imageName stringByAppendingString:@".png"];
return [UIImage imageWithContentsOfFile:[[self class] pathForBundleResourceNamed:imageName ofType:nil]];
}
+ (NSString *)pathForBundleResourceNamed:(NSString *)name ofType:(NSString *)extension
{
NSAssert([[NSBundle mainBundle] pathForResource:@"Mapbox" ofType:@"bundle"], @"Resource bundle not found in application.");
NSString *bundlePath = [[NSBundle mainBundle] pathForResource:@"Mapbox" ofType:@"bundle"];
NSBundle *resourcesBundle = [NSBundle bundleWithPath:bundlePath];
return [resourcesBundle pathForResource:name ofType:extension];
}
- (void)dealloc
{
[_moveDelegateQueue cancelAllOperations];
[_zoomDelegateQueue cancelAllOperations];
[[NSNotificationCenter defaultCenter] removeObserver:self];
[_mapScrollView removeObserver:self forKeyPath:@"contentOffset"];
[_tileSourcesContainer cancelAllDownloads];
_locationManager.delegate = nil;
[_locationManager stopUpdatingLocation];
[_locationManager stopUpdatingHeading];
}
- (void)didReceiveMemoryWarning
{
LogMethod();
[self.tileCache didReceiveMemoryWarning];
[self.tileSourcesContainer didReceiveMemoryWarning];
}
- (void)handleMemoryWarningNotification:(NSNotification *)notification
{
[self didReceiveMemoryWarning];
}
- (void)handleWillChangeOrientationNotification:(NSNotification *)notification
{
// send a dummy heading update to force re-rotation
//
if (self.userTrackingMode == RMUserTrackingModeFollowWithHeading)
[self locationManager:_locationManager didUpdateHeading:_locationManager.heading];
// fix UIScrollView artifacts from rotation at minZoomScale
//
_rotateAtMinZoom = fabs(self.zoom - self.minZoom) < 0.1;
}
- (void)handleDidChangeOrientationNotification:(NSNotification *)notification
{
if (_rotateAtMinZoom)
[_mapScrollView setZoomScale:_mapScrollView.minimumZoomScale animated:YES];
[self updateHeadingForDeviceOrientation];
}
- (UIViewController *)viewController
{
UIResponder *responder = self;
while ((responder = [responder nextResponder]))
if ([responder isKindOfClass:[UIViewController class]])
return (UIViewController *)responder;
return nil;
}
- (void)updateConstraints
{
// Determine our view controller since it will be used frequently.
//
UIViewController *viewController = [self viewController];
// If we somehow didn't get a view controller, return early and
// just stick with the initial frames.
//
if ( ! viewController)
{
[super updateConstraints];
return;
}
// compass
//
if (RMPostVersion7 && _compassButton)
{
// The compass view has an intermediary container superview due to
// jitter caused by constraint math updates during its rotation
// transforms. Constraints are against this container instead so
// that the compass can rotate smootly within.
//
UIView *container = _compassButton.superview;
if ( ! [[viewController.view valueForKeyPath:@"constraints.firstItem"] containsObject:container] &&
! [[viewController.view valueForKeyPath:@"constraints.secondItem"] containsObject:container])
{
[viewController.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[topLayoutGuide]-topSpacing-[container]"
options:0
metrics:@{ @"topSpacing" : @(5) }
views:@{ @"topLayoutGuide" : viewController.topLayoutGuide,
@"container" : container }]];
[viewController.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[container]-rightSpacing-|"
options:0
metrics:@{ @"rightSpacing" : @(5) }
views:@{ @"container" : container }]];
}
}
if (_logoBug)
{
if ( ! [[viewController.view valueForKeyPath:@"constraints.firstItem"] containsObject:_logoBug] &&
! [[viewController.view valueForKeyPath:@"constraints.secondItem"] containsObject:_logoBug])
{
NSString *formatString;
NSDictionary *views;
if (RMPostVersion7)
{
formatString = @"V:[logoBug]-bottomSpacing-[bottomLayoutGuide]";
views = @{ @"logoBug" : _logoBug,
@"bottomLayoutGuide" : viewController.bottomLayoutGuide };
}
else
{
formatString = @"V:[logoBug]-bottomSpacing-|";
views = @{ @"logoBug" : _logoBug };
}
[viewController.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:formatString
options:0
metrics:@{ @"bottomSpacing" : @(4) }
views:views]];
[viewController.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-leftSpacing-[logoBug]"
options:0
metrics:@{ @"leftSpacing" : @(8) }
views:views]];
}
}
if (_attributionButton)
{
if ( ! [[viewController.view valueForKeyPath:@"constraints.firstItem"] containsObject:_attributionButton] &&
! [[viewController.view valueForKeyPath:@"constraints.secondItem"] containsObject:_attributionButton])
{
NSString *formatString;
NSDictionary *views;
if (RMPostVersion7)
{
formatString = @"V:[attributionButton]-bottomSpacing-[bottomLayoutGuide]";
views = @{ @"attributionButton" : _attributionButton,
@"bottomLayoutGuide" : viewController.bottomLayoutGuide };
}
else
{
formatString = @"V:[attributionButton]-bottomSpacing-|";
views = @{ @"attributionButton" : _attributionButton };
}
[viewController.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:formatString
options:0
metrics:@{ @"bottomSpacing" : @(8) }
views:views]];
[viewController.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[attributionButton]-rightSpacing-|"
options:0
metrics:@{ @"rightSpacing" : @(8) }
views:views]];
}
}
[super updateConstraints];
}
- (void)layoutSubviews
{
if ( ! _mapScrollView)
{
// This will happen after initWithCoder: This needs to happen here because during
// unarchiving, the view won't have a frame yet and performInitialization...
// needs a scroll view frame in order to calculate _metersPerPixel.
// See https://github.com/mapbox/mapbox-ios-sdk/issues/270
//
[self performInitializationWithTilesource:[RMMapboxSource new]
centerCoordinate:CLLocationCoordinate2DMake(kDefaultInitialLatitude, kDefaultInitialLongitude)
zoomLevel:kDefaultInitialZoomLevel
maxZoomLevel:kDefaultMaximumZoomLevel
minZoomLevel:kDefaultMinimumZoomLevel
backgroundImage:nil];
}
if ( ! self.viewControllerPresentingAttribution && ! _hideAttribution)
{
self.viewControllerPresentingAttribution = [self viewController];
}
else if (self.viewControllerPresentingAttribution && _hideAttribution)
{
self.viewControllerPresentingAttribution = nil;
}
[super layoutSubviews];
}
- (void)removeFromSuperview
{
self.viewControllerPresentingAttribution = nil;
[super removeFromSuperview];
}
- (NSString *)description
{
CGRect bounds = self.bounds;
return [NSString stringWithFormat:@"MapView at {%.0f,%.0f}-{%.0fx%.0f}", bounds.origin.x, bounds.origin.y, bounds.size.width, bounds.size.height];
}
#pragma mark -
#pragma mark Delegate
- (void)setDelegate:(id <RMMapViewDelegate>)aDelegate
{
if (_delegate == aDelegate)
return;
_delegate = aDelegate;
_delegateHasBeforeMapMove = [_delegate respondsToSelector:@selector(beforeMapMove:byUser:)];
_delegateHasAfterMapMove = [_delegate respondsToSelector:@selector(afterMapMove:byUser:)];
_delegateHasBeforeMapZoom = [_delegate respondsToSelector:@selector(beforeMapZoom:byUser:)];
_delegateHasAfterMapZoom = [_delegate respondsToSelector:@selector(afterMapZoom:byUser:)];
_delegateHasMapViewRegionDidChange = [_delegate respondsToSelector:@selector(mapViewRegionDidChange:)];
_delegateHasDoubleTapOnMap = [_delegate respondsToSelector:@selector(doubleTapOnMap:at:)];
_delegateHasSingleTapOnMap = [_delegate respondsToSelector:@selector(singleTapOnMap:at:)];
_delegateHasSingleTapTwoFingersOnMap = [_delegate respondsToSelector:@selector(singleTapTwoFingersOnMap:at:)];
_delegateHasLongPressOnMap = [_delegate respondsToSelector:@selector(longPressOnMap:at:)];
_delegateHasTapOnAnnotation = [_delegate respondsToSelector:@selector(tapOnAnnotation:onMap:)];
_delegateHasDoubleTapOnAnnotation = [_delegate respondsToSelector:@selector(doubleTapOnAnnotation:onMap:)];
_delegateHasLongPressOnAnnotation = [_delegate respondsToSelector:@selector(longPressOnAnnotation:onMap:)];
_delegateHasTapOnCalloutAccessoryControlForAnnotation = [_delegate respondsToSelector:@selector(tapOnCalloutAccessoryControl:forAnnotation:onMap:)];
_delegateHasTapOnLabelForAnnotation = [_delegate respondsToSelector:@selector(tapOnLabelForAnnotation:onMap:)];
_delegateHasDoubleTapOnLabelForAnnotation = [_delegate respondsToSelector:@selector(doubleTapOnLabelForAnnotation:onMap:)];
_delegateHasShouldDragAnnotation = [_delegate respondsToSelector:@selector(mapView:shouldDragAnnotation:)];
_delegateHasDidChangeDragState = [_delegate respondsToSelector:@selector(mapView:annotation:didChangeDragState:fromOldState:)];
_delegateHasLayerForAnnotation = [_delegate respondsToSelector:@selector(mapView:layerForAnnotation:)];
_delegateHasAnnotationSorting = [_delegate respondsToSelector:@selector(annotationSortingComparatorForMapView:)];
_delegateHasWillHideLayerForAnnotation = [_delegate respondsToSelector:@selector(mapView:willHideLayerForAnnotation:)];
_delegateHasDidHideLayerForAnnotation = [_delegate respondsToSelector:@selector(mapView:didHideLayerForAnnotation:)];
_delegateHasDidSelectAnnotation = [_delegate respondsToSelector:@selector(mapView:didSelectAnnotation:)];
_delegateHasDidDeselectAnnotation = [_delegate respondsToSelector:@selector(mapView:didDeselectAnnotation:)];
_delegateHasWillStartLocatingUser = [_delegate respondsToSelector:@selector(mapViewWillStartLocatingUser:)];
_delegateHasDidStopLocatingUser = [_delegate respondsToSelector:@selector(mapViewDidStopLocatingUser:)];
_delegateHasDidUpdateUserLocation = [_delegate respondsToSelector:@selector(mapView:didUpdateUserLocation:)];
_delegateHasDidFailToLocateUserWithError = [_delegate respondsToSelector:@selector(mapView:didFailToLocateUserWithError:)];
_delegateHasDidChangeUserTrackingMode = [_delegate respondsToSelector:@selector(mapView:didChangeUserTrackingMode:animated:)];
}
- (void)registerMoveEventByUser:(BOOL)wasUserEvent
{
@synchronized (_moveDelegateQueue)
{
BOOL flag = wasUserEvent;
__weak RMMapView *weakSelf = self;
BOOL hasBeforeMapMove = _delegateHasBeforeMapMove;
BOOL hasAfterMapMove = _delegateHasAfterMapMove;
if ([_moveDelegateQueue operationCount] == 0)
{
dispatch_async(dispatch_get_main_queue(), ^(void)
{
if (hasBeforeMapMove)
[_delegate beforeMapMove:weakSelf byUser:flag];
});
}
[_moveDelegateQueue setSuspended:YES];
if ([_moveDelegateQueue operationCount] == 0)
{
[_moveDelegateQueue addOperationWithBlock:^(void)
{
dispatch_async(dispatch_get_main_queue(), ^(void)
{
if (hasAfterMapMove)
[_delegate afterMapMove:weakSelf byUser:flag];
});
}];
}
}
}
- (void)completeMoveEventAfterDelay:(NSTimeInterval)delay
{
if ( ! delay)
[_moveDelegateQueue setSuspended:NO];
else
[_moveDelegateQueue performSelector:@selector(setSuspended:) withObject:[NSNumber numberWithBool:NO] afterDelay:delay];
}
- (void)registerZoomEventByUser:(BOOL)wasUserEvent
{
@synchronized (_zoomDelegateQueue)
{
BOOL flag = wasUserEvent;
__weak RMMapView *weakSelf = self;
BOOL hasBeforeMapZoom = _delegateHasBeforeMapZoom;
BOOL hasAfterMapZoom = _delegateHasAfterMapZoom;
if ([_zoomDelegateQueue operationCount] == 0)
{
dispatch_async(dispatch_get_main_queue(), ^(void)
{
if (hasBeforeMapZoom)
[_delegate beforeMapZoom:weakSelf byUser:flag];
});
}
[_zoomDelegateQueue setSuspended:YES];
if ([_zoomDelegateQueue operationCount] == 0)
{
[_zoomDelegateQueue addOperationWithBlock:^(void)
{
dispatch_async(dispatch_get_main_queue(), ^(void)
{
if (hasAfterMapZoom)
[_delegate afterMapZoom:weakSelf byUser:flag];
});
}];
}
}
}
- (void)completeZoomEventAfterDelay:(NSTimeInterval)delay
{
if ( ! delay)
[_zoomDelegateQueue setSuspended:NO];
else
[_zoomDelegateQueue performSelector:@selector(setSuspended:) withObject:[NSNumber numberWithBool:NO] afterDelay:delay];
}
#pragma mark -
#pragma mark Bounds
- (RMProjectedRect)fitProjectedRect:(RMProjectedRect)rect1 intoRect:(RMProjectedRect)rect2
{
if (rect1.size.width > rect2.size.width || rect1.size.height > rect2.size.height)
return rect2;
RMProjectedRect fittedRect = RMProjectedRectMake(0.0, 0.0, rect1.size.width, rect1.size.height);
if (rect1.origin.x < rect2.origin.x)
fittedRect.origin.x = rect2.origin.x;
else if (rect1.origin.x + rect1.size.width > rect2.origin.x + rect2.size.width)
fittedRect.origin.x = (rect2.origin.x + rect2.size.width) - rect1.size.width;
else
fittedRect.origin.x = rect1.origin.x;
if (rect1.origin.y < rect2.origin.y)
fittedRect.origin.y = rect2.origin.y;
else if (rect1.origin.y + rect1.size.height > rect2.origin.y + rect2.size.height)
fittedRect.origin.y = (rect2.origin.y + rect2.size.height) - rect1.size.height;
else
fittedRect.origin.y = rect1.origin.y;
return fittedRect;
}
- (RMProjectedRect)projectedRectFromLatitudeLongitudeBounds:(RMSphericalTrapezium)bounds
{
CLLocationCoordinate2D southWest = bounds.southWest;
CLLocationCoordinate2D northEast = bounds.northEast;
CLLocationCoordinate2D midpoint = {
.latitude = (northEast.latitude + southWest.latitude) / 2,
.longitude = (northEast.longitude + southWest.longitude) / 2
};
RMProjectedPoint myOrigin = [_projection coordinateToProjectedPoint:midpoint];
RMProjectedPoint southWestPoint = [_projection coordinateToProjectedPoint:southWest];
RMProjectedPoint northEastPoint = [_projection coordinateToProjectedPoint:northEast];
RMProjectedPoint myPoint = {
.x = northEastPoint.x - southWestPoint.x,
.y = northEastPoint.y - southWestPoint.y
};
// Create the new zoom layout
RMProjectedRect zoomRect;
// Default is with scale = 2.0 * mercators/pixel
zoomRect.size.width = self.bounds.size.width * 2.0;
zoomRect.size.height = self.bounds.size.height * 2.0;
if ((myPoint.x / self.bounds.size.width) < (myPoint.y / self.bounds.size.height))
{
if ((myPoint.y / self.bounds.size.height) > 1)
{
zoomRect.size.width = self.bounds.size.width * (myPoint.y / self.bounds.size.height);
zoomRect.size.height = self.bounds.size.height * (myPoint.y / self.bounds.size.height);
}
}
else
{
if ((myPoint.x / self.bounds.size.width) > 1)
{
zoomRect.size.width = self.bounds.size.width * (myPoint.x / self.bounds.size.width);
zoomRect.size.height = self.bounds.size.height * (myPoint.x / self.bounds.size.width);
}
}
myOrigin.x = myOrigin.x - (zoomRect.size.width / 2);
myOrigin.y = myOrigin.y - (zoomRect.size.height / 2);
RMLog(@"Origin is calculated at: %f, %f", [_projection projectedPointToCoordinate:myOrigin].longitude, [_projection projectedPointToCoordinate:myOrigin].latitude);
zoomRect.origin = myOrigin;
// RMLog(@"Origin: x=%f, y=%f, w=%f, h=%f", zoomRect.origin.easting, zoomRect.origin.northing, zoomRect.size.width, zoomRect.size.height);
return zoomRect;
}
- (BOOL)tileSourceBoundsContainProjectedPoint:(RMProjectedPoint)point
{
RMSphericalTrapezium bounds = [self.tileSourcesContainer latitudeLongitudeBoundingBox];
if (bounds.northEast.latitude == 90.0 && bounds.northEast.longitude == 180.0 &&
bounds.southWest.latitude == -90.0 && bounds.southWest.longitude == -180.0)
{
return YES;
}
return RMProjectedRectContainsProjectedPoint(_constrainingProjectedBounds, point);
}
- (BOOL)tileSourceBoundsContainScreenPoint:(CGPoint)pixelCoordinate
{
RMProjectedPoint projectedPoint = [self pixelToProjectedPoint:pixelCoordinate];
return [self tileSourceBoundsContainProjectedPoint:projectedPoint];
}
// ===
- (void)setConstraintsSouthWest:(CLLocationCoordinate2D)southWest northEast:(CLLocationCoordinate2D)northEast
{
RMProjectedPoint projectedSouthWest = [_projection coordinateToProjectedPoint:southWest];
RMProjectedPoint projectedNorthEast = [_projection coordinateToProjectedPoint:northEast];
[self setProjectedConstraintsSouthWest:projectedSouthWest northEast:projectedNorthEast];
}
- (void)setProjectedConstraintsSouthWest:(RMProjectedPoint)southWest northEast:(RMProjectedPoint)northEast
{
_constrainMovement = _constrainMovementByUser = YES;
_constrainingProjectedBounds = RMProjectedRectMake(southWest.x, southWest.y, northEast.x - southWest.x, northEast.y - southWest.y);
_constrainingProjectedBoundsByUser = RMProjectedRectMake(southWest.x, southWest.y, northEast.x - southWest.x, northEast.y - southWest.y);
}
- (void)setTileSourcesConstraintsFromLatitudeLongitudeBoundingBox:(RMSphericalTrapezium)bounds
{
BOOL tileSourcesConstrainMovement = !(bounds.northEast.latitude == 90.0 && bounds.northEast.longitude == 180.0 && bounds.southWest.latitude == -90.0 && bounds.southWest.longitude == -180.0);
if (tileSourcesConstrainMovement)
{
_constrainMovement = YES;
RMProjectedRect tileSourcesConstrainingProjectedBounds = [self projectedRectFromLatitudeLongitudeBounds:bounds];
if (_constrainMovementByUser)
{
_constrainingProjectedBounds = RMProjectedRectIntersection(_constrainingProjectedBoundsByUser, tileSourcesConstrainingProjectedBounds);
if (RMProjectedRectIsZero(_constrainingProjectedBounds))
RMLog(@"The constraining bounds from tilesources and user don't intersect!");
}
else
_constrainingProjectedBounds = tileSourcesConstrainingProjectedBounds;
}
else if (_constrainMovementByUser)
{
_constrainingProjectedBounds = _constrainingProjectedBoundsByUser;
}
else
{
_constrainingProjectedBounds = _projection.planetBounds;
}
}
#pragma mark -
#pragma mark Movement
- (CLLocationCoordinate2D)centerCoordinate
{
return [_projection projectedPointToCoordinate:[self centerProjectedPoint]];
}
- (void)setCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
{
[self setCenterProjectedPoint:[_projection coordinateToProjectedPoint:centerCoordinate]];
}
- (void)setCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate animated:(BOOL)animated
{
[self setCenterProjectedPoint:[_projection coordinateToProjectedPoint:centerCoordinate] animated:animated];
}
// ===
- (RMProjectedPoint)centerProjectedPoint
{
CGPoint center = CGPointMake(_mapScrollView.contentOffset.x + _mapScrollView.bounds.size.width/2.0, _mapScrollView.contentSize.height - (_mapScrollView.contentOffset.y + _mapScrollView.bounds.size.height/2.0));
RMProjectedRect planetBounds = _projection.planetBounds;
RMProjectedPoint normalizedProjectedPoint;
normalizedProjectedPoint.x = (center.x * _metersPerPixel) - fabs(planetBounds.origin.x);
normalizedProjectedPoint.y = (center.y * _metersPerPixel) - fabs(planetBounds.origin.y);
// RMLog(@"centerProjectedPoint: {%f,%f}", normalizedProjectedPoint.x, normalizedProjectedPoint.y);
return normalizedProjectedPoint;
}
- (void)setCenterProjectedPoint:(RMProjectedPoint)centerProjectedPoint
{
[self setCenterProjectedPoint:centerProjectedPoint animated:YES];
}
- (void)setCenterProjectedPoint:(RMProjectedPoint)centerProjectedPoint animated:(BOOL)animated
{
if (RMProjectedPointEqualToProjectedPoint(centerProjectedPoint, [self centerProjectedPoint]))
return;
[self registerMoveEventByUser:NO];
// RMLog(@"Current contentSize: {%.0f,%.0f}, zoom: %f", mapScrollView.contentSize.width, mapScrollView.contentSize.height, self.zoom);
RMProjectedRect planetBounds = _projection.planetBounds;
RMProjectedPoint normalizedProjectedPoint;