RMMapTiledLayerView.m
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//
// RMMapTiledLayerView.m
// MapView
//
// Created by Thomas Rasch on 17.08.11.
// Copyright (c) 2011 Alpstein. All rights reserved.
//
#import "RMMapTiledLayerView.h"
#import "RMMapView.h"
#import "RMTileSource.h"
@interface RMMapOverlayView ()
- (void)handleDoubleTap:(UIGestureRecognizer *)recognizer;
- (void)handleTwoFingerDoubleTap:(UIGestureRecognizer *)recognizer;
@end
@implementation RMMapTiledLayerView
@synthesize delegate;
+ (Class)layerClass
{
return [CATiledLayer class];
}
- (CATiledLayer *)tiledLayer
{
return (CATiledLayer *)self.layer;
}
- (id)initWithFrame:(CGRect)frame mapView:(RMMapView *)aMapView
{
if (!(self = [super initWithFrame:frame]))
return nil;
mapView = [aMapView retain];
self.userInteractionEnabled = YES;
self.multipleTouchEnabled = YES;
self.opaque = NO;
CATiledLayer *tiledLayer = [self tiledLayer];
tiledLayer.levelsOfDetail = [[mapView tileSource] maxZoom];
tiledLayer.levelsOfDetailBias = [[mapView tileSource] maxZoom];
UITapGestureRecognizer *doubleTapRecognizer = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleDoubleTap:)] autorelease];
doubleTapRecognizer.numberOfTapsRequired = 2;
UITapGestureRecognizer *singleTapRecognizer = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)] autorelease];
[singleTapRecognizer requireGestureRecognizerToFail:doubleTapRecognizer];
UITapGestureRecognizer *twoFingerDoubleTapRecognizer = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTwoFingerDoubleTap:)] autorelease];
twoFingerDoubleTapRecognizer.numberOfTapsRequired = 2;
twoFingerDoubleTapRecognizer.numberOfTouchesRequired = 2;
UITapGestureRecognizer *twoFingerSingleTapRecognizer = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTwoFingerSingleTap:)] autorelease];
twoFingerSingleTapRecognizer.numberOfTouchesRequired = 2;
[twoFingerSingleTapRecognizer requireGestureRecognizerToFail:twoFingerDoubleTapRecognizer];
UILongPressGestureRecognizer *longPressRecognizer = [[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)] autorelease];
[self addGestureRecognizer:singleTapRecognizer];
[self addGestureRecognizer:doubleTapRecognizer];
[self addGestureRecognizer:twoFingerDoubleTapRecognizer];
[self addGestureRecognizer:twoFingerSingleTapRecognizer];
[self addGestureRecognizer:longPressRecognizer];
return self;
}
- (void)dealloc
{
[[mapView tileSource] cancelAllDownloads];
[mapView release]; mapView = nil;
[super dealloc];
}
- (void)setNeedsDisplay
{
self.contentScaleFactor = 1.0f;
[super setNeedsDisplay];
}
-(void)drawRect:(CGRect)rect
{
CGRect bounds = self.bounds;
// NSLog(@"drawRect: {{%f,%f},{%f,%f}}", rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
short zoom = log2(bounds.size.width / rect.size.width);
int x = floor(rect.origin.x / rect.size.width), y = floor(fabs(rect.origin.y / rect.size.height));
// NSLog(@"Tile @ x:%d, y:%d, zoom:%d", x, y, zoom);
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
UIImage *tileImage = [[mapView tileSource] imageForTile:RMTileMake(x, y, zoom) inCache:[mapView tileCache]];
[tileImage drawInRect:rect];
[pool release]; pool = nil;
}
#pragma mark -
#pragma mark Event handling
- (void)handleSingleTap:(UIGestureRecognizer *)recognizer
{
if ([delegate respondsToSelector:@selector(mapTiledLayerView:singleTapAtPoint:)])
[delegate mapTiledLayerView:self singleTapAtPoint:[recognizer locationInView:mapView]];
}
- (void)handleTwoFingerSingleTap:(UIGestureRecognizer *)recognizer
{
if ([delegate respondsToSelector:@selector(mapTiledLayerView:twoFingerSingleTapAtPoint:)])
[delegate mapTiledLayerView:self twoFingerSingleTapAtPoint:[recognizer locationInView:mapView]];
}
- (void)handleLongPress:(UILongPressGestureRecognizer *)recognizer
{
if (recognizer.state != UIGestureRecognizerStateBegan) return;
if ([delegate respondsToSelector:@selector(mapTiledLayerView:longPressAtPoint:)])
[delegate mapTiledLayerView:self longPressAtPoint:[recognizer locationInView:mapView]];
}
- (void)handleDoubleTap:(UIGestureRecognizer *)recognizer
{
if ([delegate respondsToSelector:@selector(mapTiledLayerView:doubleTapAtPoint:)])
[delegate mapTiledLayerView:self doubleTapAtPoint:[recognizer locationInView:mapView]];
}
- (void)handleTwoFingerDoubleTap:(UIGestureRecognizer *)recognizer
{
if ([delegate respondsToSelector:@selector(mapTiledLayerView:twoFingerDoubleTapAtPoint:)])
[delegate mapTiledLayerView:self twoFingerDoubleTapAtPoint:[recognizer locationInView:mapView]];
}
@end