/MapView/Map/RMTileImage.m
http://github.com/route-me/route-me · Objective C · 240 lines · 162 code · 48 blank · 30 comment · 11 complexity · e322787360a3fa160680f3c01f51df4d MD5 · raw file
- //
- // RMTileImage.m
- //
- // Copyright (c) 2008-2009, Route-Me Contributors
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are met:
- //
- // * Redistributions of source code must retain the above copyright notice, this
- // list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above copyright notice,
- // this list of conditions and the following disclaimer in the documentation
- // and/or other materials provided with the distribution.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- // POSSIBILITY OF SUCH DAMAGE.
- #import "RMGlobalConstants.h"
- #import "RMTileImage.h"
- #import "RMWebTileImage.h"
- #import "RMTileLoader.h"
- #import "RMFileTileImage.h"
- #import "RMDBTileImage.h"
- #import "RMTileCache.h"
- #import "RMPixel.h"
- #import <QuartzCore/QuartzCore.h>
- @implementation RMTileImage
- @synthesize tile, layer, lastUsedTime;
- - (id) initWithTile: (RMTile)_tile
- {
- if (![super init])
- return nil;
-
- tile = _tile;
- layer = nil;
- lastUsedTime = nil;
- screenLocation = CGRectZero;
- [self makeLayer];
- [self touch];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(tileRemovedFromScreen:)
- name:RMMapImageRemovedFromScreenNotification object:self];
-
- return self;
- }
-
- -(void) tileRemovedFromScreen: (NSNotification*) notification
- {
- [self cancelLoading];
- }
- -(id) init
- {
- [NSException raise:@"Invalid initialiser" format:@"Use the designated initialiser for TileImage"];
- [self release];
- return nil;
- }
- + (RMTileImage*) dummyTile: (RMTile)tile
- {
- return [[[RMTileImage alloc] initWithTile:tile] autorelease];
- }
- - (void)dealloc
- {
- // RMLog(@"Removing tile image %d %d %d", tile.x, tile.y, tile.zoom);
-
- [[NSNotificationCenter defaultCenter] removeObserver:self];
- [layer release]; layer = nil;
- [lastUsedTime release]; lastUsedTime = nil;
-
- [super dealloc];
- }
- -(void)draw
- {
- }
- + (RMTileImage*)imageForTile:(RMTile) _tile withURL: (NSString*)url
- {
- return [[[RMWebTileImage alloc] initWithTile:_tile FromURL:url] autorelease];
- }
- + (RMTileImage*)imageForTile:(RMTile) _tile fromFile: (NSString*)filename
- {
- return [[[RMFileTileImage alloc] initWithTile:_tile FromFile:filename] autorelease];
- }
- + (RMTileImage*)imageForTile:(RMTile) tile withData: (NSData*)data
- {
- UIImage *image = [[UIImage alloc] initWithData:data];
- RMTileImage *tileImage;
- if (!image)
- return nil;
- tileImage = [[self alloc] initWithTile:tile];
- [tileImage updateImageUsingImage:image];
- [image release];
- return [tileImage autorelease];
- }
- + (RMTileImage*)imageForTile:(RMTile) _tile fromDB: (FMDatabase*)db
- {
- return [[[RMDBTileImage alloc] initWithTile: _tile fromDB:db] autorelease];
- }
- -(void) cancelLoading
- {
- [[NSNotificationCenter defaultCenter] postNotificationName:RMMapImageLoadingCancelledNotification
- object:self];
- }
- - (BOOL)updateImageUsingData: (NSData*) data
- {
- UIImage *image = [UIImage imageWithData:data];
- if ( !image ) {
- return NO;
- }
- [self updateImageUsingImage:image];
- NSDictionary *d = [NSDictionary dictionaryWithObject:data forKey:@"data"];
- [[NSNotificationCenter defaultCenter] postNotificationName:RMMapImageLoadedNotification object:self userInfo:d];
-
- return YES;
- }
- - (void)updateImageUsingImage: (UIImage*) rawImage
- {
- layer.contents = (id)[rawImage CGImage];
- // [self animateIn];
- }
- - (BOOL)isLoaded
- {
- return (layer != nil && layer.contents != NULL);
- }
- - (NSUInteger)hash
- {
- return (NSUInteger)RMTileHash(tile);
- }
- -(void) touch
- {
- [lastUsedTime release];
- lastUsedTime = [[NSDate date] retain];
- }
- - (BOOL)isEqual:(id)anObject
- {
- if (![anObject isKindOfClass:[RMTileImage class]])
- return NO;
- return RMTilesEqual(tile, [(RMTileImage*)anObject tile]);
- }
- - (void)makeLayer
- {
- if (layer == nil)
- {
- layer = [[CALayer alloc] init];
- layer.contents = nil;
- layer.anchorPoint = CGPointZero;
- layer.bounds = CGRectMake(0, 0, screenLocation.size.width, screenLocation.size.height);
- layer.position = screenLocation.origin;
-
- NSMutableDictionary *customActions=[NSMutableDictionary dictionaryWithDictionary:[layer actions]];
-
- [customActions setObject:[NSNull null] forKey:@"position"];
- [customActions setObject:[NSNull null] forKey:@"bounds"];
- [customActions setObject:[NSNull null] forKey:kCAOnOrderOut];
- [customActions setObject:[NSNull null] forKey:kCAOnOrderIn];
- CATransition *fadein = [[CATransition alloc] init];
- fadein.duration = 0.3;
- fadein.type = kCATransitionReveal;
- [customActions setObject:fadein forKey:@"contents"];
- [fadein release];
-
- layer.actions=customActions;
-
- layer.edgeAntialiasingMask = 0;
- }
- }
- - (void)moveBy: (CGSize) delta
- {
- self.screenLocation = RMTranslateCGRectBy(screenLocation, delta);
- }
- - (void)zoomByFactor: (float) zoomFactor near:(CGPoint) center
- {
- self.screenLocation = RMScaleCGRectAboutPoint(screenLocation, zoomFactor, center);
- }
- - (CGRect) screenLocation
- {
- return screenLocation;
- }
- - (void) setScreenLocation: (CGRect)newScreenLocation
- {
- // RMLog(@"location moving from %f %f to %f %f", screenLocation.origin.x, screenLocation.origin.y, newScreenLocation.origin.x, newScreenLocation.origin.y);
- screenLocation = newScreenLocation;
-
- if (layer != nil)
- {
- // layer.frame = screenLocation;
- layer.position = screenLocation.origin;
- layer.bounds = CGRectMake(0, 0, screenLocation.size.width, screenLocation.size.height);
- }
-
- [self touch];
- }
- - (void) displayProxy:(UIImage*) img
- {
- layer.contents = (id)[img CGImage];
- }
- @end