/MapView/Map/RMCoreAnimationRenderer.m

  1//
  2//  RMCoreAnimationRenderer.m
  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#import "RMGlobalConstants.h"
 28#import "RMCoreAnimationRenderer.h"
 29#import <QuartzCore/QuartzCore.h>
 30#import "RMTile.h"
 31#import "RMTileLoader.h"
 32#import "RMPixel.h"
 33#import "RMTileImage.h"
 34#import "RMTileImageSet.h"
 35
 36@implementation RMCoreAnimationRenderer
 37
 38- (id) initWithContent: (RMMapContents *)_contents
 39{
 40	if (![super initWithContent:_contents])
 41		return nil;
 42	
 43	// NOTE: RMMapContents may still be initialising when this function
 44	//       is called. Be careful using any of methods - they might return
 45	//       strange data.
 46
 47	layer = [[CAScrollLayer layer] retain];
 48	layer.anchorPoint = CGPointZero;
 49	layer.masksToBounds = YES;
 50	// If the frame is set incorrectly here, it will be fixed when setRenderer is called in RMMapContents
 51	layer.frame = [content screenBounds];
 52	
 53	NSMutableDictionary *customActions = [NSMutableDictionary dictionaryWithDictionary:[layer actions]];
 54	[customActions setObject:[NSNull null] forKey:@"sublayers"];
 55	layer.actions = customActions;
 56	
 57	layer.delegate = self;
 58	
 59	tiles = [[NSMutableArray alloc] init];
 60
 61	return self;
 62}
 63
 64-(void) dealloc
 65{
 66    for ( RMTileImage *image in tiles ) {
 67        [image layer].delegate = nil;
 68    }
 69    layer.delegate = nil;
 70	[tiles release];
 71	[layer release];
 72	[super dealloc];
 73}
 74
 75/// \bug this is a no-op
 76-(void)mapImageLoaded: (NSNotification*)notification
 77{
 78}
 79
 80- (id<CAAction>)actionForLayer:(CALayer *)theLayer
 81                        forKey:(NSString *)key
 82{
 83	if (theLayer == layer)
 84	{
 85//		RMLog(@"base layer key: %@", key);
 86		return nil;
 87	}
 88	
 89	//	|| [key isEqualToString:@"onLayout"]
 90	if ([key isEqualToString:@"position"]
 91		|| [key isEqualToString:@"bounds"])
 92		return nil;
 93//		return (id<CAAction>)[NSNull null];
 94	else
 95	{
 96//		RMLog(@"key: %@", key);
 97		
 98		return nil;
 99	}
100}
101
102- (void)tileAdded: (RMTile) tile WithImage: (RMTileImage*) image
103{
104//	RMLog(@"tileAdded: %d %d %d at %f %f %f %f", tile.x, tile.y, tile.zoom, image.screenLocation.origin.x, image.screenLocation.origin.y,
105//		  image.screenLocation.size.width, image.screenLocation.size.height);
106	
107//	RMLog(@"tileAdded");
108	
109	NSUInteger min = 0, max = [tiles count];
110	CALayer *sublayer = [image layer];
111
112	sublayer.delegate = self;
113
114	while (min < max) {
115		// Binary search for insertion point
116		NSUInteger pivot = (min + max) / 2;
117		RMTileImage *other = [tiles objectAtIndex:pivot];
118		RMTile otherTile = other.tile;
119
120		if (otherTile.zoom <= tile.zoom) {
121			min = pivot + 1;
122		}
123		if (otherTile.zoom > tile.zoom) {
124			max = pivot;
125		}
126	}
127
128	[tiles insertObject:image atIndex:min];
129	[layer insertSublayer:sublayer atIndex:min];
130}
131
132-(void) tileRemoved: (RMTile) tile
133{
134	RMTileImage *image = nil;
135
136	NSUInteger i = [tiles count];
137	while (i--)
138	{
139		RMTileImage *potential = [tiles objectAtIndex:i];
140
141		if (RMTilesEqual(tile, potential.tile))
142		{
143			[tiles removeObjectAtIndex:i];
144			image = potential;
145			break;
146		}
147	}
148	
149//	RMLog(@"tileRemoved: %d %d %d at %f %f %f %f", tile.x, tile.y, tile.zoom, image.screenLocation.origin.x, image.screenLocation.origin.y,
150//		  image.screenLocation.size.width, image.screenLocation.size.height);
151	
152	[[image layer] removeFromSuperlayer];
153}
154
155- (void)setFrame:(CGRect)frame
156{
157	layer.frame = [content screenBounds];
158}
159
160- (CALayer*) layer
161{
162	return layer;
163}
164
165/*
166- (void)moveBy: (CGSize) delta
167{
168	[CATransaction begin];
169	[CATransaction setValue:[NSNumber numberWithFloat:0.0f]
170					 forKey:kCATransactionAnimationDuration];
171	
172	[CATransaction setValue:(id)kCFBooleanTrue
173					 forKey:kCATransactionDisableActions];
174	
175	[super moveBy:delta];
176	[tileLoader moveBy:delta];
177
178	[CATransaction commit];
179}
180
181- (void)zoomByFactor: (float) zoomFactor Near:(CGPoint) center
182{
183	[CATransaction begin];
184	[CATransaction setValue:[NSNumber numberWithFloat:0.0f]
185					 forKey:kCATransactionAnimationDuration];
186	
187	[CATransaction setValue:(id)kCFBooleanTrue
188					 forKey:kCATransactionDisableActions];
189	
190	[super zoomByFactor:zoomFactor Near:center];
191	[tileLoader zoomByFactor:zoomFactor Near:center];
192	
193	[CATransaction commit];
194}
195*/
196
197@end