mirror of
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115 lines
2.1 KiB
Objective-C
115 lines
2.1 KiB
Objective-C
/**
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* Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 2.1 of the License, or (at your option)
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* any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*/
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#import "IconCache.h"
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@implementation IconCache
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static IconCache* sharedInstance = nil;
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- init
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{
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self = [super init];
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if (self)
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{
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_iconIdDictionary = [[NSMutableDictionary alloc] init];
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_iconPathDictionary = [[NSMutableDictionary alloc] init];
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_currentIconId = 0;
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}
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return self;
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}
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- (void)dealloc
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{
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[_iconIdDictionary release];
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[_iconPathDictionary release];
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sharedInstance = nil;
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[super dealloc];
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}
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+ (IconCache*)sharedInstance
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{
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@synchronized(self)
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{
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if (sharedInstance == nil)
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{
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sharedInstance = [[self alloc] init];
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}
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}
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return sharedInstance;
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}
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- (NSImage*)getIcon:(NSNumber*)iconId
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{
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NSImage* image = [_iconIdDictionary objectForKey:iconId];
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return image;
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}
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- (NSNumber*)registerIcon:(NSString*)path
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{
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if (path == nil)
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{
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return [NSNumber numberWithInt:-1];
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}
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NSImage* image = [[NSImage alloc]initWithContentsOfFile:path];
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if (image == nil)
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{
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return [NSNumber numberWithInt:-1];
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}
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NSNumber* iconId = [_iconPathDictionary objectForKey:path];
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if (iconId == nil)
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{
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_currentIconId++;
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iconId = [NSNumber numberWithInt:_currentIconId];
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[_iconPathDictionary setObject:iconId forKey:path];
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}
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[_iconIdDictionary setObject:image forKey:iconId];
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[image release];
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return iconId;
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}
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- (void)unregisterIcon:(NSNumber*)iconId
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{
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NSString* path = @"";
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for (NSString* key in _iconPathDictionary)
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{
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NSNumber* value = [_iconPathDictionary objectForKey:key];
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if ([value isEqualToNumber:iconId])
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{
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path = key;
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break;
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}
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}
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[_iconPathDictionary removeObjectForKey:path];
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[_iconIdDictionary removeObjectForKey:iconId];
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}
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@end
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