/*
* Copyright 2016 Google LLC. All rights reserved.
*
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
* ANY KIND, either express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/

#import "GoogleMapsDemos/Samples/MapZoomViewController.h"

#import <GoogleMaps/GoogleMaps.h>

@implementation MapZoomViewController {
GMSMapView *_mapView;
UITextView *_zoomRangeView;
NSUInteger _nextMode;
}

- (void)viewDidLoad {
[super viewDidLoad];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868
longitude:151.2086
zoom:6];
_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
_mapView.settings.scrollGestures = NO;
self.view = _mapView;

// Add a display for the current zoom range restriction.
_zoomRangeView = [[UITextView alloc] init];
_zoomRangeView.frame = CGRectMake(0, 0, CGRectGetWidth(self.view.frame), 0);
_zoomRangeView.text = @"";
_zoomRangeView.textAlignment = NSTextAlignmentCenter;
_zoomRangeView.backgroundColor = [UIColor colorWithWhite:1.0 alpha:0.8f];
_zoomRangeView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
_zoomRangeView.editable = NO;
[self.view addSubview:_zoomRangeView];
[_zoomRangeView sizeToFit];
[self didTapNext];

// Add a button toggling through modes.
self.navigationItem.rightBarButtonItem =
[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemPlay
target:self
action:@selector(didTapNext)];
}

- (void)didTapNext {
NSString *label = @"";
float minZoom = kGMSMinZoomLevel;
float maxZoom = kGMSMaxZoomLevel;

switch (_nextMode) {
case 0:
label = @"Default";
break;
case 1:
minZoom = 18;
label = @"Zoomed in";
break;
case 2:
maxZoom = 8;
label = @"Zoomed out";
break;
case 3:
minZoom = 10;
maxZoom = 11.5;
label = @"Small range";
break;
}
_nextMode = (_nextMode + 1) % 4;

[_mapView setMinZoom:minZoom maxZoom:maxZoom];
_zoomRangeView.text =
[NSString stringWithFormat:@"%@ (%.2f - %.2f)", label, _mapView.minZoom, _mapView.maxZoom];
}

@end