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//
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// RMStaticMapView.m
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//
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// Copyright (c) 2008-2012, Route-Me Contributors
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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#import "RMStaticMapView.h"
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#define RMStaticMapViewMaxWidth 640.0f
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#define RMStaticMapViewMaxHeight 640.0f
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#define RMStaticMapViewMinZoom 0.0f
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#define RMStaticMapViewMaxZoom 17.0f
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@implementation RMStaticMapView
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- (id)initWithFrame:(CGRect)frame mapID:(NSString *)mapID centerCoordinate:(CLLocationCoordinate2D)centerCoordinate zoomLevel:(CGFloat)initialZoomLevel
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{
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if (!(self = [super initWithFrame:frame]))
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return nil;
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CGRect requestFrame = CGRectMake(frame.origin.x, frame.origin.y, fminf(frame.size.width, RMStaticMapViewMaxWidth), fminf(frame.size.height, RMStaticMapViewMaxHeight));
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if ( ! CLLocationCoordinate2DIsValid(centerCoordinate))
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centerCoordinate = CLLocationCoordinate2DMake(0, 0);
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initialZoomLevel = fmaxf(initialZoomLevel, RMStaticMapViewMinZoom);
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initialZoomLevel = fminf(initialZoomLevel, RMStaticMapViewMaxZoom);
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self.backgroundColor = [UIColor colorWithPatternImage:[RMMapView resourceImageNamed:@"LoadingTile.png"]];
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self.contentMode = UIViewContentModeCenter;
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UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
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[spinner startAnimating];
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spinner.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin;
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spinner.center = self.center;
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[self addSubview:spinner];
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NSURL *imageURL = [NSURL URLWithString:[NSString stringWithFormat:@"http://api.tiles.mapbox.com/v3/%@/%f,%f,%i/%ix%i.png", mapID, centerCoordinate.longitude, centerCoordinate.latitude, (int)roundf(initialZoomLevel), (int)roundf(requestFrame.size.width), (int)roundf(requestFrame.size.height)]];
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[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:imageURL]
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queue:[NSOperationQueue new]
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completionHandler:^(NSURLResponse *response, NSData *responseData, NSError *error)
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{
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[self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
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if (responseData)
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{
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dispatch_async(dispatch_get_main_queue(), ^(void)
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{
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self.image = [UIImage imageWithData:responseData];
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});
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}
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else
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return; // TODO: notify delegate of error & display something
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}];
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return self;
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}
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@end |
...
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...
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