diff options
Diffstat (limited to 'platform/ios/src/MGLFaux3DUserLocationAnnotationView.m')
| -rw-r--r-- | platform/ios/src/MGLFaux3DUserLocationAnnotationView.m | 197 |
1 files changed, 67 insertions, 130 deletions
diff --git a/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m b/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m index 6db9c0db10..1ed3d86ad1 100644 --- a/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m +++ b/platform/ios/src/MGLFaux3DUserLocationAnnotationView.m @@ -2,14 +2,17 @@ #import "MGLMapView.h" #import "MGLUserLocation.h" +#import "MGLUserLocationHeadingIndicator.h" +#import "MGLUserLocationHeadingArrowLayer.h" +#import "MGLUserLocationHeadingBeamLayer.h" const CGFloat MGLUserLocationAnnotationDotSize = 22.0; const CGFloat MGLUserLocationAnnotationHaloSize = 115.0; const CGFloat MGLUserLocationAnnotationPuckSize = 45.0; -const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuckSize * 0.6; +const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuckSize * 0.5; -#pragma mark - +const CGFloat MGLUserLocationHeadingUpdateThreshold = 0.01; @implementation MGLFaux3DUserLocationAnnotationView { @@ -18,14 +21,13 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck CALayer *_puckDot; CAShapeLayer *_puckArrow; - CALayer *_headingIndicatorLayer; - CAShapeLayer *_headingIndicatorMaskLayer; + CALayer<MGLUserLocationHeadingIndicator> *_headingIndicatorLayer; CALayer *_accuracyRingLayer; CALayer *_dotBorderLayer; CALayer *_dotLayer; CALayer *_haloLayer; - double _oldHeadingAccuracy; + CLLocationDirection _oldHeadingAccuracy; CLLocationAccuracy _oldHorizontalAccuracy; double _oldZoom; double _oldPitch; @@ -56,21 +58,18 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck - (void)setTintColor:(UIColor *)tintColor { + CGColorRef newTintColor = [tintColor CGColor]; + if (_puckModeActivated) { - _puckArrow.fillColor = [tintColor CGColor]; + _puckArrow.fillColor = newTintColor; } else { - if (_accuracyRingLayer) - { - _accuracyRingLayer.backgroundColor = [tintColor CGColor]; - } - - _haloLayer.backgroundColor = [tintColor CGColor]; - _dotLayer.backgroundColor = [tintColor CGColor]; - - _headingIndicatorLayer.contents = (__bridge id)[[self headingIndicatorTintedGradientImage] CGImage]; + _accuracyRingLayer.backgroundColor = newTintColor; + _haloLayer.backgroundColor = newTintColor; + _dotLayer.backgroundColor = newTintColor; + [_headingIndicatorLayer updateTintColor:newTintColor]; } } @@ -80,7 +79,7 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck { // disable implicit animation [CATransaction begin]; - [CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions]; + [CATransaction setDisableActions:YES]; CATransform3D t = CATransform3DRotate(CATransform3DIdentity, MGLRadiansFromDegrees(self.mapView.camera.pitch), 1.0, 0, 0); self.layer.sublayerTransform = t; @@ -138,7 +137,6 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck self.layer.sublayers = nil; _headingIndicatorLayer = nil; - _headingIndicatorMaskLayer = nil; _accuracyRingLayer = nil; _haloLayer = nil; _dotBorderLayer = nil; @@ -177,12 +175,16 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck _puckArrow = [CAShapeLayer layer]; _puckArrow.path = [[self puckArrow] CGPath]; _puckArrow.fillColor = [self.mapView.tintColor CGColor]; - _puckArrow.bounds = CGRectMake(0, 0, MGLUserLocationAnnotationArrowSize, MGLUserLocationAnnotationArrowSize); - _puckArrow.position = CGPointMake(super.bounds.size.width / 2.0, super.bounds.size.height / 2.0); + _puckArrow.bounds = CGRectMake(0, 0, round(MGLUserLocationAnnotationArrowSize), round(MGLUserLocationAnnotationArrowSize)); + _puckArrow.position = CGPointMake(CGRectGetMidX(super.bounds), CGRectGetMidY(super.bounds)); _puckArrow.shouldRasterize = YES; _puckArrow.rasterizationScale = [UIScreen mainScreen].scale; _puckArrow.drawsAsynchronously = YES; + _puckArrow.lineJoin = @"round"; + _puckArrow.lineWidth = 1.f; + _puckArrow.strokeColor = _puckArrow.fillColor; + [self.layer addSublayer:_puckArrow]; } if (self.userLocation.location.course >= 0) @@ -225,70 +227,67 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck [self updateFrameWithSize:MGLUserLocationAnnotationDotSize]; } - BOOL showHeadingIndicator = self.mapView.userTrackingMode == MGLUserTrackingModeFollowWithHeading; - - // update heading indicator + // heading indicator (tinted, beam or arrow) // + BOOL headingTrackingModeEnabled = self.mapView.userTrackingMode == MGLUserTrackingModeFollowWithHeading; + BOOL showHeadingIndicator = self.mapView.showsUserHeadingIndicator || headingTrackingModeEnabled; + if (showHeadingIndicator) { _headingIndicatorLayer.hidden = NO; + CLLocationDirection headingAccuracy = self.userLocation.heading.headingAccuracy; - // heading indicator (tinted, semi-circle) - // - if ( ! _headingIndicatorLayer && self.userLocation.heading.headingAccuracy) + if (([_headingIndicatorLayer isMemberOfClass:[MGLUserLocationHeadingBeamLayer class]] && ! headingTrackingModeEnabled) || + ([_headingIndicatorLayer isMemberOfClass:[MGLUserLocationHeadingArrowLayer class]] && headingTrackingModeEnabled)) { - CGFloat headingIndicatorSize = MGLUserLocationAnnotationHaloSize; - - _headingIndicatorLayer = [CALayer layer]; - _headingIndicatorLayer.bounds = CGRectMake(0, 0, headingIndicatorSize, headingIndicatorSize); - _headingIndicatorLayer.position = CGPointMake(super.bounds.size.width / 2.0, super.bounds.size.height / 2.0); - _headingIndicatorLayer.contents = (__bridge id)[[self headingIndicatorTintedGradientImage] CGImage]; - _headingIndicatorLayer.contentsGravity = kCAGravityBottom; - _headingIndicatorLayer.contentsScale = [UIScreen mainScreen].scale; - _headingIndicatorLayer.opacity = 0.4; - _headingIndicatorLayer.shouldRasterize = YES; - _headingIndicatorLayer.rasterizationScale = [UIScreen mainScreen].scale; - _headingIndicatorLayer.drawsAsynchronously = YES; - - [self.layer insertSublayer:_headingIndicatorLayer below:_dotBorderLayer]; + [_headingIndicatorLayer removeFromSuperlayer]; + _headingIndicatorLayer = nil; + _oldHeadingAccuracy = -1; } - // heading indicator accuracy mask (fan-shaped) - // - if ( ! _headingIndicatorMaskLayer && self.userLocation.heading.headingAccuracy) + if ( ! _headingIndicatorLayer && headingAccuracy) { - _headingIndicatorMaskLayer = [CAShapeLayer layer]; - _headingIndicatorMaskLayer.frame = _headingIndicatorLayer.bounds; - _headingIndicatorMaskLayer.path = [[self headingIndicatorClippingMask] CGPath]; - - // apply the mask to the halo-radius-sized gradient layer - _headingIndicatorLayer.mask = _headingIndicatorMaskLayer; - - _oldHeadingAccuracy = self.userLocation.heading.headingAccuracy; - + if (headingTrackingModeEnabled) + { + _headingIndicatorLayer = [[MGLUserLocationHeadingBeamLayer alloc] initWithUserLocationAnnotationView:self]; + [self.layer insertSublayer:_headingIndicatorLayer below:_dotBorderLayer]; + } + else + { + _headingIndicatorLayer = [[MGLUserLocationHeadingArrowLayer alloc] initWithUserLocationAnnotationView:self]; + [self.layer addSublayer:_headingIndicatorLayer]; + _headingIndicatorLayer.zPosition = 1; + } } - else if (_oldHeadingAccuracy != self.userLocation.heading.headingAccuracy) - { - // recalculate the clipping mask based on updated accuracy - _headingIndicatorMaskLayer.path = [[self headingIndicatorClippingMask] CGPath]; - _oldHeadingAccuracy = self.userLocation.heading.headingAccuracy; + if (_oldHeadingAccuracy != headingAccuracy) + { + [_headingIndicatorLayer updateHeadingAccuracy:headingAccuracy]; + _oldHeadingAccuracy = headingAccuracy; } if (self.userLocation.heading.trueHeading >= 0) { - _headingIndicatorLayer.affineTransform = CGAffineTransformRotate(CGAffineTransformIdentity, -MGLRadiansFromDegrees(self.mapView.direction - self.userLocation.heading.trueHeading)); + CGFloat rotation = -MGLRadiansFromDegrees(self.mapView.direction - self.userLocation.heading.trueHeading); + + // Don't rotate if the change is imperceptible. + if (fabs(rotation) > MGLUserLocationHeadingUpdateThreshold) + { + [CATransaction begin]; + [CATransaction setDisableActions:YES]; + + _headingIndicatorLayer.affineTransform = CGAffineTransformRotate(CGAffineTransformIdentity, rotation); + + [CATransaction commit]; + } } } else { [_headingIndicatorLayer removeFromSuperlayer]; - [_headingIndicatorMaskLayer removeFromSuperlayer]; _headingIndicatorLayer = nil; - _headingIndicatorMaskLayer = nil; } - // update accuracy ring (if zoom or horizontal accuracy have changed) // if (_accuracyRingLayer && (_oldZoom != self.mapView.zoomLevel || _oldHorizontalAccuracy != self.userLocation.location.horizontalAccuracy)) @@ -301,13 +300,13 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck _accuracyRingLayer.hidden = NO; // disable implicit animation of the accuracy ring, unless triggered by a change in accuracy - id shouldDisableActions = (_oldHorizontalAccuracy == self.userLocation.location.horizontalAccuracy) ? (id)kCFBooleanTrue : (id)kCFBooleanFalse; + BOOL shouldDisableActions = _oldHorizontalAccuracy == self.userLocation.location.horizontalAccuracy; [CATransaction begin]; - [CATransaction setValue:shouldDisableActions forKey:kCATransactionDisableActions]; + [CATransaction setDisableActions:shouldDisableActions]; _accuracyRingLayer.bounds = CGRectMake(0, 0, accuracyRingSize, accuracyRingSize); - _accuracyRingLayer.cornerRadius = accuracyRingSize / 2; + _accuracyRingLayer.cornerRadius = accuracyRingSize / 2.0; // match the halo to the accuracy ring _haloLayer.bounds = _accuracyRingLayer.bounds; @@ -436,9 +435,11 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck - (CALayer *)circleLayerWithSize:(CGFloat)layerSize { + layerSize = round(layerSize); + CALayer *circleLayer = [CALayer layer]; circleLayer.bounds = CGRectMake(0, 0, layerSize, layerSize); - circleLayer.position = CGPointMake(super.bounds.size.width / 2.0, super.bounds.size.height / 2.0); + circleLayer.position = CGPointMake(CGRectGetMidX(super.bounds), CGRectGetMidY(super.bounds)); circleLayer.cornerRadius = layerSize / 2.0; circleLayer.shouldRasterize = YES; circleLayer.rasterizationScale = [UIScreen mainScreen].scale; @@ -460,72 +461,8 @@ const CGFloat MGLUserLocationAnnotationArrowSize = MGLUserLocationAnnotationPuck - (CGFloat)calculateAccuracyRingSize { - CGFloat latitudeRadians = MGLRadiansFromDegrees(self.userLocation.coordinate.latitude); - CGFloat metersPerPoint = [self.mapView metersPerPointAtLatitude:self.userLocation.coordinate.latitude]; - CGFloat pixelRadius = self.userLocation.location.horizontalAccuracy / cos(latitudeRadians) / metersPerPoint; - - return pixelRadius * 2.0; -} - -- (UIImage *)headingIndicatorTintedGradientImage -{ - UIImage *image; - - CGFloat haloRadius = MGLUserLocationAnnotationHaloSize / 2.0; - - UIGraphicsBeginImageContextWithOptions(CGSizeMake(MGLUserLocationAnnotationHaloSize, haloRadius), NO, 0); - - CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); - CGContextRef context = UIGraphicsGetCurrentContext(); - - // gradient from the tint color to no-alpha tint color - CGFloat gradientLocations[] = {0.0, 1.0}; - CGGradientRef gradient = CGGradientCreateWithColors( - colorSpace, - (__bridge CFArrayRef)@[ - (id)[self.mapView.tintColor CGColor], - (id)[[self.mapView.tintColor colorWithAlphaComponent:0] CGColor]], - gradientLocations); - - // draw the gradient from the center point to the edge (full halo radius) - CGPoint centerPoint = CGPointMake(haloRadius, haloRadius); - CGContextDrawRadialGradient(context, gradient, - centerPoint, 0.0, - centerPoint, haloRadius, - kNilOptions); - - image = UIGraphicsGetImageFromCurrentImageContext(); - UIGraphicsEndImageContext(); - - CGGradientRelease(gradient); - CGColorSpaceRelease(colorSpace); - - return image; -} - -- (UIBezierPath *)headingIndicatorClippingMask -{ - CGFloat accuracy = self.userLocation.heading.headingAccuracy; - - // size the mask using accuracy, but keep within a good display range - CGFloat clippingDegrees = 90 - accuracy; - clippingDegrees = fmin(clippingDegrees, 70); // most accurate - clippingDegrees = fmax(clippingDegrees, 10); // least accurate - - CGRect ovalRect = CGRectMake(0, 0, MGLUserLocationAnnotationHaloSize, MGLUserLocationAnnotationHaloSize); - UIBezierPath *ovalPath = UIBezierPath.bezierPath; - - // clip the oval to ± incoming accuracy degrees (converted to radians), from the top - [ovalPath addArcWithCenter:CGPointMake(CGRectGetMidX(ovalRect), CGRectGetMidY(ovalRect)) - radius:CGRectGetWidth(ovalRect) / 2.0 - startAngle:MGLRadiansFromDegrees(-180 + clippingDegrees) - endAngle:MGLRadiansFromDegrees(-clippingDegrees) - clockwise:YES]; - - [ovalPath addLineToPoint:CGPointMake(CGRectGetMidX(ovalRect), CGRectGetMidY(ovalRect))]; - [ovalPath closePath]; - - return ovalPath; + // diameter in screen points + return round(self.userLocation.location.horizontalAccuracy / [self.mapView metersPerPointAtLatitude:self.userLocation.coordinate.latitude] * 2.0); } @end |