/* |
File: CustomAnnotationView.m |
Abstract: The custom MKAnnotationView object representing a generic location, displaying a title and image. |
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Version: 1.5 |
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Copyright (C) 2014 Apple Inc. All Rights Reserved. |
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*/ |
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#import "CustomAnnotationView.h" |
#import "CustomAnnotation.h" |
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static CGFloat kMaxViewWidth = 150.0; |
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static CGFloat kViewWidth = 90; |
static CGFloat kViewLength = 100; |
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static CGFloat kLeftMargin = 15.0; |
static CGFloat kRightMargin = 5.0; |
static CGFloat kTopMargin = 5.0; |
static CGFloat kBottomMargin = 10.0; |
static CGFloat kRoundBoxLeft = 10.0; |
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@implementation CustomAnnotationView |
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#if TARGET_OS_IPHONE |
// iOS Label |
- (UILabel *)makeiOSLabel:(NSString *)placeLabel |
{ |
// add the annotation's label |
UILabel *annotationLabel = [[UILabel alloc] initWithFrame:CGRectZero]; |
annotationLabel.font = [UIFont systemFontOfSize:9.0]; |
annotationLabel.textColor = [UIColor whiteColor]; |
annotationLabel.text = placeLabel; |
[annotationLabel sizeToFit]; // get the right vertical size |
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// compute the optimum width of our annotation, based on the size of our annotation label |
CGFloat optimumWidth = annotationLabel.frame.size.width + kRightMargin + kLeftMargin; |
CGRect frame = self.frame; |
if (optimumWidth < kViewWidth) |
frame.size = CGSizeMake(kViewWidth, kViewLength); |
else if (optimumWidth > kMaxViewWidth) |
frame.size = CGSizeMake(kMaxViewWidth, kViewLength); |
else |
frame.size = CGSizeMake(optimumWidth, kViewLength); |
self.frame = frame; |
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annotationLabel.lineBreakMode = NSLineBreakByTruncatingTail; |
annotationLabel.backgroundColor = [UIColor clearColor]; |
CGRect newFrame = annotationLabel.frame; |
newFrame.origin.x = kLeftMargin; |
newFrame.origin.y = kTopMargin; |
newFrame.size.width = self.frame.size.width - kRightMargin - kLeftMargin; |
annotationLabel.frame = newFrame; |
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return annotationLabel; |
} |
#else |
// OS X label |
- (NSTextField *)makeOSXLabel:(NSString *)placeLabel |
{ |
NSTextField *annotationLabel = [[NSTextField alloc] initWithFrame:NSZeroRect]; |
[annotationLabel setBordered:NO]; |
[annotationLabel setEditable:NO]; |
annotationLabel.font = [NSFont systemFontOfSize:10.0]; |
annotationLabel.textColor = [NSColor whiteColor]; |
[annotationLabel setStringValue:placeLabel]; |
[annotationLabel sizeToFit]; // get the right vertical size |
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// compute the optimum width of our annotation, based on the size of our annotation label |
CGFloat optimumWidth = annotationLabel.frame.size.width + kRightMargin + kLeftMargin; |
CGRect frame = self.frame; |
if (optimumWidth < kViewWidth) |
frame.size = CGSizeMake(kViewWidth, kViewLength); |
else if (optimumWidth > kMaxViewWidth) |
frame.size = CGSizeMake(kMaxViewWidth, kViewLength); |
else |
frame.size = CGSizeMake(optimumWidth, kViewLength); |
self.frame = frame; |
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annotationLabel.backgroundColor = [NSColor clearColor]; |
CGRect newFrame = annotationLabel.frame; |
newFrame.origin.x = kLeftMargin; |
newFrame.origin.y = kTopMargin; |
newFrame.size.width = self.frame.size.width - kRightMargin - kLeftMargin; |
annotationLabel.frame = newFrame; |
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return annotationLabel; |
} |
#endif |
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// determine the MKAnnotationView based on the annotation info and reuseIdentifier |
// |
- (id)initWithAnnotation:(id <MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier |
{ |
self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier]; |
if (self != nil) |
{ |
CustomAnnotation *mapItem = (CustomAnnotation *)self.annotation; |
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// offset the annotation so it won't obscure the actual lat/long location |
self.centerOffset = CGPointMake(50.0, 50.0); |
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#if TARGET_OS_IPHONE |
// iOS equivalent |
// |
self.backgroundColor = [UIColor clearColor]; |
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UILabel *annotationLabel = [self makeiOSLabel:mapItem.place]; |
[self addSubview:annotationLabel]; |
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// add the annotation's image |
// the annotation image snaps to the width and height of this view |
UIImageView *annotationImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:mapItem.imageName]]; |
annotationImage.contentMode = UIViewContentModeScaleAspectFit; |
annotationImage.frame = |
CGRectMake(kLeftMargin, |
annotationLabel.frame.origin.y + annotationLabel.frame.size.height + kTopMargin, |
self.frame.size.width - kRightMargin - kLeftMargin, |
self.frame.size.height - annotationLabel.frame.size.height - kTopMargin*2 - kBottomMargin); |
[self addSubview:annotationImage]; |
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#else |
// OS X equivalent |
// |
NSTextField *annotationLabel = [self makeOSXLabel:mapItem.place]; |
[self addSubview:annotationLabel]; |
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// add the annotation's image |
// the annotation image snaps to the width and height of this view |
NSImage *annotationImage = [NSImage imageNamed:mapItem.imageName]; |
NSRect annotationImageFrame = NSMakeRect(0, 0, annotationImage.size.width, annotationImage.size.height); |
NSImageView *annotationImageView = [[NSImageView alloc] initWithFrame:annotationImageFrame]; |
[annotationImageView setImage:annotationImage]; |
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annotationImageView.frame = |
NSMakeRect(kLeftMargin, |
annotationLabel.frame.origin.y + annotationLabel.frame.size.height + kTopMargin, |
self.frame.size.width - kRightMargin - kLeftMargin, |
self.frame.size.height - annotationLabel.frame.size.height - kTopMargin*2 - kBottomMargin); |
[self addSubview:annotationImageView]; |
#endif |
} |
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return self; |
} |
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#if TARGET_OS_IPHONE // for iOS |
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- (void)drawRect:(CGRect)rect |
{ |
// used to draw the rounded background box and pointer |
CustomAnnotation *mapItem = (CustomAnnotation *)self.annotation; |
if (mapItem != nil) |
{ |
[[UIColor darkGrayColor] setFill]; |
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// draw the pointed shape |
UIBezierPath *pointShape = [UIBezierPath bezierPath]; |
[pointShape moveToPoint:CGPointMake(14.0, 0.0)]; |
[pointShape addLineToPoint:CGPointMake(0.0, 0.0)]; |
[pointShape addLineToPoint:CGPointMake(self.frame.size.width, self.frame.size.height)]; |
[pointShape fill]; |
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// draw the rounded box |
UIBezierPath *roundedRect = [UIBezierPath bezierPathWithRoundedRect: |
CGRectMake(kRoundBoxLeft, |
0.0, |
self.frame.size.width - kRoundBoxLeft, |
self.frame.size.height) |
cornerRadius:3.0]; |
roundedRect.lineWidth = 2.0; |
[roundedRect fill]; |
} |
} |
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#else // for OS X |
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- (void)drawRect:(NSRect)dirtyRect |
{ |
// used to draw the rounded background box and pointer |
CustomAnnotation *mapItem = (CustomAnnotation *)self.annotation; |
if (mapItem != nil) |
{ |
[[NSColor darkGrayColor] setFill]; |
|
// draw the pointed shape |
NSBezierPath *pointShape = [NSBezierPath bezierPath]; |
[pointShape moveToPoint:CGPointMake(14.0, 0.0)]; |
[pointShape lineToPoint:CGPointMake(0.0, 0.0)]; |
[pointShape lineToPoint:CGPointMake(self.frame.size.width, self.frame.size.height)]; |
[pointShape fill]; |
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// draw the rounded box |
NSBezierPath *roundedRect = [NSBezierPath bezierPathWithRoundedRect: |
CGRectMake(kRoundBoxLeft, |
0.0, |
self.frame.size.width - kRoundBoxLeft, |
self.frame.size.height) |
xRadius:3.0 |
yRadius:3.0]; |
roundedRect.lineWidth = 2.0; |
[roundedRect fill]; |
} |
} |
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#endif |
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@end |
