RMTileImage.m
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//
// 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 "RMTileImage.h"
static BOOL _didLoadErrorTile = NO;
static BOOL _didLoadMissingTile = NO;
static UIImage *_errorTile = nil;
static UIImage *_missingTile = nil;
@implementation RMTileImage
+ (UIImage *)errorTile
{
if (_errorTile)
return _errorTile;
if (_didLoadErrorTile)
return nil;
_errorTile = [UIImage imageNamed:@"error.png"];
_didLoadErrorTile = YES;
return _errorTile;
}
+ (void)setErrorTile:(UIImage *)newErrorTile
{
if (_errorTile == newErrorTile) return;
_errorTile = newErrorTile;
_didLoadErrorTile = YES;
}
+ (UIImage *)missingTile
{
if (_missingTile)
return _missingTile;
if (_didLoadMissingTile)
return nil;
_missingTile = [UIImage imageNamed:@"missing.png"];
_didLoadMissingTile = YES;
return _missingTile;
}
+ (void)setMissingTile:(UIImage *)newMissingTile
{
if (_missingTile == newMissingTile) return;
_missingTile = newMissingTile;
_didLoadMissingTile = YES;
}
@end