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Make the HSL example more concrete, add a bunch of labels, and do som…
…e refactoring.
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| // | ||
| // AKHSLAdjustingViewController.m | ||
| // SmapleApp | ||
| // | ||
| // Created by Jeffrey Kelley on 6/12/12. | ||
| // Copyright (c) 2013 Detroit Labs. 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. | ||
| // | ||
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| #import "AKHSLAdjustingViewController.h" | ||
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| #import <QuartzCore/QuartzCore.h> | ||
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| #import "AmazeKit.h" | ||
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| @interface AKHSLAdjustingViewController () { | ||
| NSNumberFormatter *_sliderNumberFormatter; | ||
| } | ||
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| // AmazeKit Components | ||
| @property (strong, nonatomic) AKMutableColorImageEffect *colorImageEffect; | ||
| @property (strong, nonatomic) AKImageCoordinator *imageCoordinator; | ||
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| // UI Components | ||
| @property (strong, nonatomic) IBOutlet UIButton *button; | ||
| @property (strong, nonatomic) IBOutlet UILabel *hashLabel; | ||
| @property (strong, nonatomic) IBOutlet UILabel *hueLabel; | ||
| @property (strong, nonatomic) IBOutlet UISlider *hueSlider; | ||
| @property (strong, nonatomic) IBOutlet UIImageView *imageView; | ||
| @property (strong, nonatomic) IBOutlet UILabel *luminanceLabel; | ||
| @property (strong, nonatomic) IBOutlet UISlider *luminanceSlider; | ||
| @property (strong, nonatomic) IBOutlet UILabel *saturationLabel; | ||
| @property (strong, nonatomic) IBOutlet UISlider *saturationSlider; | ||
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| - (void)adjustColorEffect; | ||
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| // IBActions | ||
| - (IBAction)sliderValueChanged:(id)sender; | ||
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| @end | ||
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| @implementation AKHSLAdjustingViewController | ||
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| #pragma mark - View Controller Lifecycle | ||
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| - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil | ||
| { | ||
| self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; | ||
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| if (self) { | ||
| _sliderNumberFormatter = [[NSNumberFormatter alloc] init]; | ||
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| [_sliderNumberFormatter setMaximumFractionDigits:3]; | ||
| [_sliderNumberFormatter setMinimumFractionDigits:1]; | ||
| } | ||
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| return self; | ||
| } | ||
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| - (void)viewWillAppear:(BOOL)animated | ||
| { | ||
| [super viewWillAppear:animated]; | ||
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| [self sliderValueChanged:nil]; | ||
| [[self imageCoordinator] addImageView:[self imageView]]; | ||
| } | ||
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| - (void)viewWillDisappear:(BOOL)animated | ||
| { | ||
| [super viewWillDisappear:animated]; | ||
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| [[self imageCoordinator] removeImageView:[self imageView]]; | ||
| } | ||
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| - (void)viewDidUnload | ||
| { | ||
| [self setButton:nil]; | ||
| [self setHashLabel:nil]; | ||
| [self setHueLabel:nil]; | ||
| [self setHueSlider:nil]; | ||
| [self setImageView:nil]; | ||
| [self setLuminanceLabel:nil]; | ||
| [self setLuminanceSlider:nil]; | ||
| [self setSaturationLabel:nil]; | ||
| [self setSaturationSlider:nil]; | ||
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| [super viewDidUnload]; | ||
| } | ||
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| - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation | ||
| { | ||
| return (interfaceOrientation = UIInterfaceOrientationPortrait); | ||
| } | ||
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| #pragma mark - HSL Adjusting View Controller Lifecycle | ||
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| - (void)adjustColorEffect | ||
| { | ||
| UIColor *newColor = [UIColor colorWithHue:[[self hueSlider] value] | ||
| saturation:[[self saturationSlider] value] | ||
| brightness:[[self luminanceSlider] value] | ||
| alpha:1.0f]; | ||
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| [[self colorImageEffect] setColor:newColor]; | ||
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| [[self hashLabel] setText:[[[self imageCoordinator] imageRenderer] representativeHash]]; | ||
| } | ||
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| - (AKMutableColorImageEffect *)colorImageEffect | ||
| { | ||
| if (_colorImageEffect == nil) { | ||
| _colorImageEffect = | ||
| [[AKMutableColorImageEffect alloc] initWithAlpha:1.0f | ||
| blendMode:kCGBlendModeColor]; | ||
| } | ||
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| return _colorImageEffect; | ||
| } | ||
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| - (AKImageCoordinator *)imageCoordinator | ||
| { | ||
| if (_imageCoordinator == nil) { | ||
| // Noise Effect | ||
| AKNoiseImageEffect *noiseEffect = | ||
| [[AKNoiseImageEffect alloc] initWithAlpha:0.05f | ||
| blendMode:kCGBlendModeMultiply | ||
| noiseType:AKNoiseTypeBlackAndWhite]; | ||
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| // Gradient Effect | ||
| UIColor *beginColor = [UIColor colorWithRed:144.0f / 255.0f | ||
| green:144.0f / 255.0f | ||
| blue:144.0f / 255.0f | ||
| alpha:1.0f]; | ||
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| UIColor *endColor = [UIColor colorWithRed:103.0f / 255.0f | ||
| green:103.0f / 255.0f | ||
| blue:103.0f / 255.0f | ||
| alpha:1.0f]; | ||
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| AKGradientImageEffect *gradientEffect = | ||
| [[AKGradientImageEffect alloc] initWithAlpha:1.0f | ||
| blendMode:kCGBlendModeMultiply | ||
| colors:@[beginColor, endColor] | ||
| direction:AKGradientDirectionVertical | ||
| locations:nil]; | ||
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| // Rounded Corners | ||
| AKCornerRadii cornerRadii = AKCornerRadiiMake(40.0f, | ||
| 10.0f, | ||
| 5.0f, | ||
| 80.0f); | ||
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| AKImageEffect *roundedCornerEffect = | ||
| [[AKCornerRadiusImageEffect alloc] initWithAlpha:1.0f | ||
| blendMode:kCGBlendModeNormal | ||
| cornerRadii:cornerRadii]; | ||
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| // Inner Glow | ||
| AKInnerGlowImageEffect *innerGlowEffect = | ||
| [[AKInnerGlowImageEffect alloc] initWithAlpha:0.25f | ||
| blendMode:kCGBlendModeMultiply | ||
| color:[UIColor blackColor] | ||
| radius:10.0f]; | ||
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| AKImageRenderer *imageRenderer = [[AKImageRenderer alloc] init]; | ||
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| [imageRenderer setImageEffects:@[ | ||
| noiseEffect, | ||
| gradientEffect, | ||
| [self colorImageEffect], | ||
| roundedCornerEffect, | ||
| innerGlowEffect | ||
| ]]; | ||
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| _imageCoordinator = [[AKImageCoordinator alloc] init]; | ||
| [_imageCoordinator setImageRenderer:imageRenderer]; | ||
| } | ||
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| return _imageCoordinator; | ||
| } | ||
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| #pragma mark - IBActions | ||
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| - (IBAction)sliderValueChanged:(id)sender | ||
| { | ||
| [[NSOperationQueue mainQueue] addOperationWithBlock:^{ | ||
| [self adjustColorEffect]; | ||
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| [[self hueLabel] setText: | ||
| [_sliderNumberFormatter stringFromNumber:@([[self hueSlider] value])]]; | ||
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| [[self luminanceLabel] setText: | ||
| [_sliderNumberFormatter stringFromNumber:@([[self luminanceSlider] value])]]; | ||
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| [[self saturationLabel] setText: | ||
| [_sliderNumberFormatter stringFromNumber:@([[self saturationSlider] value])]]; | ||
| }]; | ||
| } | ||
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| #pragma mark - | ||
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| @end |
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