146 lines
3.6 KiB
Objective-C
146 lines
3.6 KiB
Objective-C
//
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// Created by Leland Richardson on 12/27/15.
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// Copyright (c) 2015 Facebook. All rights reserved.
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//
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#import "AIRMapPolyline.h"
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#import <React/UIView+React.h>
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@implementation AIRMapPolyline {
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}
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- (void)setFillColor:(UIColor *)fillColor {
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_fillColor = fillColor;
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[self update];
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}
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- (void)setStrokeColor:(UIColor *)strokeColor {
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_strokeColor = strokeColor;
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[self update];
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}
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- (void)setStrokeWidth:(CGFloat)strokeWidth {
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_strokeWidth = strokeWidth;
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[self update];
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}
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- (void)setLineJoin:(CGLineJoin)lineJoin {
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_lineJoin = lineJoin;
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[self update];
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}
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- (void)setLineCap:(CGLineCap)lineCap {
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_lineCap = lineCap;
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[self update];
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}
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- (void)setMiterLimit:(CGFloat)miterLimit {
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_miterLimit = miterLimit;
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[self update];
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}
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- (void)setLineDashPhase:(CGFloat)lineDashPhase {
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_lineDashPhase = lineDashPhase;
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[self update];
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}
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- (void)setLineDashPattern:(NSArray <NSNumber *> *)lineDashPattern {
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_lineDashPattern = lineDashPattern;
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[self update];
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}
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- (void)setCoordinates:(NSArray<AIRMapCoordinate *> *)coordinates {
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_coordinates = coordinates;
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CLLocationCoordinate2D coords[coordinates.count];
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for(int i = 0; i < coordinates.count; i++)
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{
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coords[i] = coordinates[i].coordinate;
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}
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self.polyline = [MKPolyline polylineWithCoordinates:coords count:coordinates.count];
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self.renderer = [[MKPolylineRenderer alloc] initWithPolyline:self.polyline];
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[self update];
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}
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- (void) update
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{
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if (!_renderer) return;
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_renderer.fillColor = _fillColor;
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_renderer.strokeColor = _strokeColor;
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_renderer.lineWidth = _strokeWidth;
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_renderer.lineCap = _lineCap;
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_renderer.lineJoin = _lineJoin;
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_renderer.miterLimit = _miterLimit;
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_renderer.lineDashPhase = _lineDashPhase;
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_renderer.lineDashPattern = _lineDashPattern;
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if (_map == nil) return;
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[_map removeOverlay:self];
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[_map addOverlay:self];
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}
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#pragma mark MKOverlay implementation
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- (CLLocationCoordinate2D) coordinate
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{
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return self.polyline.coordinate;
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}
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- (MKMapRect) boundingMapRect
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{
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return self.polyline.boundingMapRect;
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}
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- (BOOL)intersectsMapRect:(MKMapRect)mapRect
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{
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BOOL answer = [self.polyline intersectsMapRect:mapRect];
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return answer;
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}
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- (BOOL)canReplaceMapContent
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{
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return NO;
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}
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#pragma mark AIRMapSnapshot implementation
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- (void) drawToSnapshot:(MKMapSnapshot *) snapshot context:(CGContextRef) context
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{
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// Prepare context
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CGContextSetStrokeColorWithColor(context, self.strokeColor.CGColor);
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CGContextSetLineWidth(context, self.strokeWidth);
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CGContextSetLineCap(context, self.lineCap);
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CGContextSetLineJoin(context, self.lineJoin);
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CGContextSetMiterLimit(context, self.miterLimit);
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CGFloat dashes[self.lineDashPattern.count];
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for (NSUInteger i = 0; i < self.lineDashPattern.count; i++) {
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dashes[i] = self.lineDashPattern[i].floatValue;
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}
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CGContextSetLineDash(context, self.lineDashPhase, dashes, self.lineDashPattern.count);
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// Begin path
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CGContextBeginPath(context);
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// Get coordinates
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CLLocationCoordinate2D coordinates[[self.polyline pointCount]];
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[self.polyline getCoordinates:coordinates range:NSMakeRange(0, [self.polyline pointCount])];
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// Draw line segments
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for(int i = 0; i < [self.polyline pointCount]; i++) {
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CGPoint point = [snapshot pointForCoordinate:coordinates[i]];
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if (i == 0) {
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CGContextMoveToPoint(context,point.x, point.y);
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}
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else{
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CGContextAddLineToPoint(context,point.x, point.y);
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}
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}
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// Finish path
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CGContextStrokePath(context);
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}
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@end |