RMMarker.m
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//
// RMMarker.m
// MapView
//
// Created by Joseph Gentle on 13/10/08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import "RMMarker.h"
#import "RMMarkerStyle.h"
#import "RMMarkerStyles.h"
#import "RMPixel.h"
NSString* const RMMarkerBlueKey = @"RMMarkerBlueKey";
NSString* const RMMarkerRedKey = @"RMMarkerRedKey";
static CGImageRef _markerRed = nil;
static CGImageRef _markerBlue = nil;
@implementation RMMarker
@synthesize location;
+ (RMMarker*) markerWithNamedStyle: (NSString*) styleName
{
return [[[RMMarker alloc] initWithNamedStyle: styleName] autorelease];
}
- (id) initWithCGImage: (CGImageRef) image
{
return [self initWithCGImage: image anchorPoint: CGPointMake(0.5, 1.0)];
}
- (id) initWithCGImage: (CGImageRef) image anchorPoint: (CGPoint) _anchorPoint
{
if (![super init])
return nil;
self.contents = (id)image;
self.bounds = CGRectMake(0, 0, CGImageGetWidth(image), CGImageGetHeight(image));
self.anchorPoint = _anchorPoint;
return self;
}
- (id) initWithUIImage: (UIImage*) image
{
return [self initWithCGImage: [image CGImage]];
}
- (id) initWithKey: (NSString*) key
{
return [self initWithCGImage:[RMMarker markerImage:key]];
}
- (id) initWithStyle: (RMMarkerStyle*) style
{
return [self initWithCGImage: [style.markerIcon CGImage] anchorPoint: style.anchorPoint];
}
- (id) initWithNamedStyle: (NSString*) styleName
{
RMMarkerStyle* style = [[RMMarkerStyles styles] styleNamed: styleName];
if (style==nil) {
NSLog(@"problem creating marker: style '%@' not found", styleName);
return [self initWithCGImage: [RMMarker markerImage: RMMarkerRedKey]];
}
return [self initWithStyle: style];
}
- (void)zoomByFactor: (float) zoomFactor Near:(CGPoint) center
{
self.position = RMScaleCGPointAboutPoint(self.position, zoomFactor, center);
/* CGRect currentRect = CGRectMake(self.position.x, self.position.y, self.bounds.size.width, self.bounds.size.height);
CGRect newRect = RMScaleCGRectAboutPoint(currentRect, zoomFactor, center);
self.position = newRect.origin;
self.bounds = CGRectMake(0, 0, newRect.size.width, newRect.size.height);
*/
}
+ (CGImageRef) loadPNGFromBundle: (NSString *)filename
{
NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"png"];
CGDataProviderRef dataProvider = CGDataProviderCreateWithFilename([path UTF8String]);
CGImageRef image = CGImageCreateWithPNGDataProvider(dataProvider, NULL, FALSE, kCGRenderingIntentDefault);
CGDataProviderRelease(dataProvider);
return image;
}
+ (CGImageRef) markerImage: (NSString *) key
{
if (RMMarkerBlueKey == key
|| [RMMarkerBlueKey isEqualToString:key])
{
if (_markerBlue == nil)
_markerBlue = [self loadPNGFromBundle:@"marker-blue"];
return _markerBlue;
}
else if (RMMarkerRedKey == key
|| [RMMarkerRedKey isEqualToString: key])
{
if (_markerRed == nil)
_markerRed = [self loadPNGFromBundle:@"marker-red"];
return _markerRed;
}
return nil;
}
@end