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MapViewController.m
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MapViewController.m
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//
// MapViewController.m
// WxHere
//
// Created by Ayal Spitz on 7/31/09.
// Copyright (C) 2009 Ayal Spitz
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#import "MapViewController.h"
#import "WxDataModel.h"
#import "GPSDataModel.h"
#import "LocationDataModel.h"
#import "CurrentConditionsDataModel.h"
#import "NOAADataModel.h"
#import "WxHereAppDelegate.h"
#import "WxAnnotation.h"
#import "ForecastDay.h"
#import "ForecastPeriod.h"
@implementation MapViewController
@synthesize mapView, activityView, activityIndicator;
@synthesize navigationBar;
@synthesize navigationItem;
#pragma mark -
#pragma mark UIViewController lifecycle methods
- (id)initWithCoder:(NSCoder *)decoder{
self = [super initWithCoder:decoder];
if (self != nil){
wxDataModel = [WxDataModel dataModel];
memoryWarning = NO;
}
return self;
}
- (void)dealloc {
[mapView release];
[activityView release];
[activityIndicator release];
[wxAnnotationView release];
[wxAnnotation release];
[navigationBar release];
[navigationItem release];
[wxDataModel release];
[tweetButton release];
[rightCalloutButton release];
[super dealloc];
}
- (void)didReceiveMemoryWarning{
DLog(@"memory warning");
memoryWarning = YES;
[super didReceiveMemoryWarning];
}
#pragma mark -
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context{
if ([keyPath isEqual:@"state"]){
if ([object class] == [GPSDataModel class]){
[self gpsUpdated];
} else if ([object class] == [LocationDataModel class]){
[self locationNameUpdated];
} else if ([object class] == [CurrentConditionsDataModel class]){
[self currentConditionsUpdated];
} else if ([object class] == [NOAADataModel class]){
[self forecastsUpdated];
} else if ([object class] == [WxDataModel class]){
[self dataModelUpdating];
}
}
}
- (void)gpsUpdated{
DLog(@"Start");
GPSDataModel *dataModel = wxDataModel.gpsDataModel;
if (dataModel.state == Updated){
// Zoom to the users location
CLLocation *currentLocation = dataModel.location;
CLLocationDistance distance = MAX(4*currentLocation.horizontalAccuracy, 500);
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(currentLocation.coordinate, distance, distance);
[self.mapView setRegion:region animated:YES];
// If the annotation exists, make sure to release the old one
if (wxAnnotation != nil){
[wxAnnotation release];
wxAnnotation = nil;
}
wxAnnotation = [[WxAnnotation alloc]initWithGPSDataModel:dataModel];
// If the annotation view isn't on the screen then we should animate the ping drop
BOOL animatesDrop = (wxAnnotationView == nil);
// Lets make sure that we create an annotation view so that we have a view to add stuff to
if (wxAnnotationView != nil){
[wxAnnotationView release];
wxAnnotationView = nil;
}
wxAnnotationView = [[MKPinAnnotationView alloc]initWithAnnotation:wxAnnotation reuseIdentifier:@"WXAnnotation"];
wxAnnotationView.pinColor = MKPinAnnotationColorPurple;
wxAnnotationView.animatesDrop = animatesDrop;
// Make sure to set 'canShowCallout' to YES otherwise the callout will not show
wxAnnotationView.canShowCallout = YES;
// Make sure to add the annotation to the map
[self.mapView addAnnotation:wxAnnotation];
// Once we add the annotation to the map we can turn off the users location
//self.mapView.showsUserLocation = NO;
[self updateAnnotation];
}
DLog(@"End");
}
- (void)locationNameUpdated{
DLog(@"Start");
self.navigationBar.topItem.title = wxDataModel.locationDataModel.location;
[self.navigationBar setNeedsDisplay];
DLog(@"End");
}
- (void)currentConditionsUpdated{
DLog(@"Start");
CurrentConditionsDataModel *dataModel = wxDataModel.currentConditionsDataModel;
if (dataModel.state == Updated){
[wxAnnotation updateCurrentConditions:dataModel];
[wxAnnotationView setLeftCalloutAccessoryView:dataModel.conditionImage];
[self updateAnnotation];
}
DLog(@"End");
}
- (void)forecastsUpdated{
DLog(@"Start");
NOAADataModel *dataModel = wxDataModel.noaaDataModel;
if ((dataModel.state == Updated) && ([dataModel.multidayForecast count] != 0)){
wxAnnotation.subtitle = [dataModel currentHighLowString];
/*ForecastDay *forecastDay = [dataModel.multidayForecast objectAtIndex:0];
NSArray *periods = [forecastDay.periods allValues];
NSString *highLow;
ForecastPeriod *period = [forecastDay periodAtIndex:0];
if ((periods.count == 1) || (periods.count == 3)){
highLow = [[NSString alloc] initWithFormat:@"Lo:%@°F", period.temp];
} else if (periods.count == 2){
ForecastPeriod *amPeriod = [forecastDay periodAtIndex:1];
highLow = [[NSString alloc] initWithFormat:@"Hi:%@°F - Lo:%@°F", amPeriod.temp, period.temp];
}
self.wxAnnotation.subtitle = highLow;
[highLow release];*/
// Create and add the right button to the callout
rightCalloutButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[wxAnnotationView setRightCalloutAccessoryView:rightCalloutButton];
[self updateAnnotation];
[self crawlViews];
}
DLog(@"End");
}
- (void)dataModelUpdating{
DLog(@"Start");
if (wxDataModel.state == Updating){
[self.activityIndicator startAnimating];
self.activityView.alpha = 0.5;
} else {
[self.activityIndicator stopAnimating];
self.activityView.alpha = 0.0;
}
DLog(@"End");
}
#pragma mark -
#pragma mark UIViewController methods
- (void)viewDidLoad {
[super viewDidLoad];
NSString *mapType = [[NSUserDefaults standardUserDefaults]stringForKey:@"map_type_preference"];
if ([mapType isEqualToString:@"Standard"]){
self.mapView.mapType = MKMapTypeStandard;
} else if ([mapType isEqualToString:@"Satellite"]){
self.mapView.mapType = MKMapTypeSatellite;
} else if ([mapType isEqualToString:@"Hybrid"]){
self.mapView.mapType = MKMapTypeHybrid;
}
}
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[wxDataModel.gpsDataModel addObserver:self forKeyPath:@"state" options:0 context:NULL];
[wxDataModel.locationDataModel addObserver:self forKeyPath:@"state" options:0 context:NULL];
[wxDataModel.noaaDataModel addObserver:self forKeyPath:@"state" options:0 context:NULL];
[wxDataModel.currentConditionsDataModel addObserver:self forKeyPath:@"state" options:0 context:NULL];
[wxDataModel addObserver:self forKeyPath:@"state" options:(NSKeyValueObservingOptionNew) context:nil];
[self gpsUpdated];
[self locationNameUpdated];
[self currentConditionsUpdated];
[self forecastsUpdated];
}
- (void)viewDidAppear:(BOOL)animated{
[self dataModelUpdating];
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated{
[super viewWillDisappear:animated];
[wxDataModel.gpsDataModel removeObserver:self forKeyPath:@"state"];
[wxDataModel.locationDataModel removeObserver:self forKeyPath:@"state"];
[wxDataModel.noaaDataModel removeObserver:self forKeyPath:@"state"];
[wxDataModel.currentConditionsDataModel removeObserver:self forKeyPath:@"state"];
[wxDataModel removeObserver:self forKeyPath:@"state"];
}
#pragma mark -
#pragma mark MKMapViewDelegate Protocol implementation
- (void)mapView:(MKMapView *)localMapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control {
WxHereAppDelegate *appDelegate = ((WxHereAppDelegate *)([UIApplication sharedApplication].delegate));
appDelegate.tabBarController.selectedIndex = 1;
}
- (void)mapView:(MKMapView *)localMapView regionDidChangeAnimated:(BOOL)animated{
[self updateAnnotation];
}
- (void)mapView:(MKMapView *)localMapView didAddAnnotationViews:(NSArray *)views{
[self.mapView selectAnnotation:wxAnnotation animated:NO];
if (memoryWarning){
memoryWarning = NO;
[self dataModelUpdating];
[self gpsUpdated];
[self locationNameUpdated];
[self currentConditionsUpdated];
[self forecastsUpdated];
}
}
- (MKAnnotationView *)mapView:(MKMapView *)localMapView viewForAnnotation:(id <MKAnnotation>)annotation{
return wxAnnotationView;
}
#pragma mark -
- (void)updateAnnotation{
if ([self.mapView selectedAnnotations]){
[self.mapView deselectAnnotation:wxAnnotation animated:NO];
[self.mapView selectAnnotation:wxAnnotation animated:NO];
}
}
- (IBAction)refreshDataModel:(id)sender{
// Clear the annotation
[self.mapView removeAnnotation:wxAnnotation];
if (rightCalloutButton != nil){
[rightCalloutButton release];
rightCalloutButton = nil;
}
if (wxAnnotation != nil){
[wxAnnotation release];
wxAnnotation = nil;
}
if (wxAnnotationView != nil){
[wxAnnotationView release];
wxAnnotationView = nil;
}
// Clear the navigation title
self.navigationBar.topItem.title = @"";
[self.navigationBar setNeedsDisplay];
// Refresh the data model
[wxDataModel refresh];
// Refresh the activity indicator
[self dataModelUpdating];
}
- (void)crawlViews{
UIApplication *app = [UIApplication sharedApplication];
for (UIView *view in app.windows){
[self crawlViews:view];
}
}
- (void)crawlViews:(UIView *)view{
DLog(@"view - %@", view);
for(UIView *subview in [view subviews]){
[self crawlViews:subview];
}
}
@end