/MapView/Map/RMTileLoader.h

 1//
 2//  RMTimeImageSet.h
 3//
 4// Copyright (c) 2008-2009, Route-Me Contributors
 5// All rights reserved.
 6//
 7// Redistribution and use in source and binary forms, with or without
 8// modification, are permitted provided that the following conditions are met:
 9//
10// * Redistributions of source code must retain the above copyright notice, this
11//   list of conditions and the following disclaimer.
12// * Redistributions in binary form must reproduce the above copyright notice,
13//   this list of conditions and the following disclaimer in the documentation
14//   and/or other materials provided with the distribution.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26// POSSIBILITY OF SUCH DAMAGE.
27
28#import <Foundation/Foundation.h>
29#import "RMTile.h"
30#import "RMTileImageSet.h"
31#import "RMMapContents.h"
32
33@class RMTileImage;
34@class RMTileImageSet;
35@class RMMercatorToScreenProjection;
36
37@protocol RMTileSource;
38
39@interface RMTileLoader : NSObject {
40	RMMapContents *content;
41
42	CGRect loadedBounds;
43	NSUInteger loadedZoom;
44	RMTileRect loadedTiles;
45	
46	BOOL suppressLoading;
47}
48
49/// Designated initialiser
50- (id)initWithContent: (RMMapContents *)contents;
51
52- (void)updateLoadedImages;
53
54- (void)moveBy: (CGSize) delta;
55- (void)zoomByFactor: (float) zoomFactor near:(CGPoint) center;
56
57- (void)clearLoadedBounds;
58
59- (void)reload;
60- (void)reset;
61
62@property (readonly, nonatomic) CGRect loadedBounds;
63@property (readonly, nonatomic) NSUInteger loadedZoom;
64@property (readwrite, assign) BOOL suppressLoading;
65
66//-(BOOL) containsRect: (CGRect)bounds;
67
68@end