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CloudViewController.m
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CloudViewController.m
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//
// CloudViewController.m
// iVerb
//
// Created by Max on 05/02/13.
// Copyright (c) 2013 Lis@cintosh. All rights reserved.
//
#import "CloudViewController.h"
#import "ResultViewController.h"
#import "Playlist.h"
#import "CloudView.h"
#import "UIView+addition.h"
@interface CloudViewController ()
@property (nonatomic, strong) CADisplayLink * link;
@property (nonatomic, strong) NSArray * verbs;
@property (nonatomic, strong) CloudView * cloudView;
@end
@implementation CloudViewController
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = @"Cloud";
self.view.backgroundColor = [UIColor whiteColor];
self.view.clipsToBounds = YES;
if (TARGET_IS_IPAD()) {
// Add a "Done" button on iPad
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self action:@selector(doneAction:)];
}
const CGFloat parallaxExtraMargin = 30; // Extra margin for parallax effect
_cloudView = [[CloudView alloc] init];
_cloudView.translatesAutoresizingMaskIntoConstraints = NO;
_cloudView.backgroundColor = [UIColor whiteColor];
[self.view addSubview:_cloudView];
[self.view addConstraints:
@[ [NSLayoutConstraint constraintWithItem:self.view attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual
toItem:_cloudView attribute:NSLayoutAttributeTop multiplier:1 constant:-parallaxExtraMargin],
[NSLayoutConstraint constraintWithItem:self.view attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual
toItem:_cloudView attribute:NSLayoutAttributeLeft multiplier:1 constant:-parallaxExtraMargin],
[NSLayoutConstraint constraintWithItem:_cloudView attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual
toItem:self.view attribute:NSLayoutAttributeRight multiplier:1 constant:-parallaxExtraMargin],
[NSLayoutConstraint constraintWithItem:_cloudView attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual
toItem:self.view attribute:NSLayoutAttributeBottom multiplier:1 constant:-parallaxExtraMargin] ]];
__block float x = 0.; __block int index = 0;
__block float * oldYs = (float *)calloc(3, sizeof(float));
const CGFloat viewHeight = TARGET_IS_IPAD() ? self.view.frame.size.height : [UIScreen mainScreen].bounds.size.height;
const CGFloat height = viewHeight - (44/*navigation bar*/ + parallaxExtraMargin + 2*20/*top and bottom margins*/);
NSSet * verbsSet = [Playlist allVerbsPlaylist].verbs;
[verbsSet enumerateObjectsUsingBlock:^(id obj, BOOL *stop) {
NSString * infinitif = ((Verb *)obj).infinitif;
CGFloat fontSizes[] = { 24, 18, 14 };
UIFont * font = [UIFont systemFontOfSize:fontSizes[(index % 3)]];
CGSize size = [infinitif sizeWithAttributes:@{ NSFontAttributeName : font }];
size.width += 8.;
float y = 0;
do { y = (int)((rand() / (float)RAND_MAX) * height) + parallaxExtraMargin; }
while (ABS(y - oldYs[0]) < 60. || ABS(y - oldYs[1]) < 60. || ABS(y - oldYs[2]) < 60.);
/* Switch older "y" values */
oldYs[2] = oldYs[1];
oldYs[1] = oldYs[0];
oldYs[0] = y;
CGRect frame = CGRectMake(x, y, size.width, size.height);
CloudLabel * label = [[CloudLabel alloc] initWithFrame:frame];
label.origin = frame.origin;
label.verb = (Verb *)obj;
label.backgroundColor = [UIColor colorWithWhite:1 alpha:0.5];
label.layer.cornerRadius = 4;
label.clipsToBounds = YES;
label.textColor = [UIColor darkGrayColor];
label.textAlignment = NSTextAlignmentCenter;
label.font = font;
label.text = infinitif;
BOOL isIncreaseContrastEnabled = (UIAccessibilityIsReduceTransparencyEnabled() || UIAccessibilityDarkerSystemColorsEnabled());
if (!isIncreaseContrastEnabled) {
label.alpha = 1. - (index % 3) / 3.;
NSShadow * shadow = [[NSShadow alloc] init];
shadow.shadowBlurRadius = (index % 3) * 1.5;
shadow.shadowColor = [UIColor colorWithWhite:0 alpha:.5];
NSDictionary * attributes = @{ NSShadowAttributeName : shadow };
label.attributedText = [[NSAttributedString alloc] initWithString:infinitif
attributes:attributes];
} else {
label.backgroundColor = [UIColor colorWithWhite:1 alpha:0.85];
label.text = infinitif;
}
[_cloudView addSubview:label];
x += (int)(size.width / 2.);
++index;
}];
free(oldYs); oldYs = NULL;
_cloudView.totalWidth = x - self.view.frame.size.width;
[_cloudView addParallaxEffect:(ParallaxAxisVertical | ParallaxAxisHorizontal) offset:30];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(labelDidSelected:)
name:CloudLabelDidSelectedNotification object:nil];
}
- (void)labelDidSelected:(NSNotification *)notification
{
Verb * verb = (Verb *)notification.object;
if (TARGET_IS_IPAD()) {
/* Dismiss the view */
[self dismissViewControllerAnimated:YES completion:NULL];
/* Send a notification to select the verb on webView */
[[NSNotificationCenter defaultCenter] postNotificationName:SearchTableViewDidSelectCellNotification object:verb];
} else {
/* Push the result view controller with the selected verb */
ResultViewController * resultViewController = [[ResultViewController alloc] init];
resultViewController.verb = verb;
[self.navigationController pushViewController:resultViewController animated:YES];
}
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
_link = [CADisplayLink displayLinkWithTarget:_cloudView selector:@selector(update)];
[_link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
_link.paused = NO;
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
_link.paused = YES;
[_link removeFromRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
}
/* Action to close the view controller on iPad */
- (IBAction)doneAction:(id)sender
{
[self dismissViewControllerAnimated:YES completion:NULL];
}
- (BOOL)shouldAutorotate
{
return (TARGET_IS_IPAD());
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
return (TARGET_IS_IPAD())? UIInterfaceOrientationMaskAll : UIInterfaceOrientationMaskPortrait;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
self.navigationController.delegate = nil;
}
@end