Y3GradientButton.m

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//
//  Y3GradientButton.m
//  TodaysMenu
//
//  Created by Don Zeek on 12/8/15.
//  Copyright © 2015 net.dzeek.y2015.ios.portfolio. All rights reserved.
//

#import "Y3GradientButton.h"

@implementation Y3GradientButton

#pragma mark - Accessories

static Y3GradientButton *menuButton;
+ (Y3GradientButton *)makeGradientButton:(NSString *) caption withFrame: (CGRect) menuButtonFrame {
    menuButton = [Y3GradientButton buttonWithType:UIButtonTypeRoundedRect];
    [menuButton setFrame:menuButtonFrame];
    
    [menuButton setBackgroundColor:[UIColor colorWithHue:0.23 saturation:0.9 brightness:1.0 alpha:1.0]];
    
    menuButton.layer.cornerRadius = 8;
    menuButton.layer.borderColor = [[UIColor blackColor] CGColor];
    menuButton.layer.borderWidth = 3.0;
    
    [menuButton setTitleEdgeInsets:UIEdgeInsetsMake(2, 2, 2, 2)];
    [menuButton setTitle:caption forState:UIControlStateNormal];
    [menuButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [menuButton setTitleColor:[UIColor yellowColor] forState:UIControlStateSelected];
    // UIFont *expandedFont = [UIFont fontWithName:@"Verdana-Bold" size:20.0];
    UIFont *expandedFont = [UIFont fontWithName:@"Verdana-Bold" size:18.0];
    [menuButton.titleLabel setFont:expandedFont];
    [menuButton.titleLabel setLineBreakMode:NSLineBreakByWordWrapping];
    [menuButton.titleLabel setTextAlignment:NSTextAlignmentCenter];
    [menuButton.titleLabel setAdjustsFontSizeToFitWidth:YES];
    menuButton.clipsToBounds = YES;
    
    CAGradientLayer *gradientLayer = [self makeGradientLayer:NO];
    [menuButton.layer addSublayer:gradientLayer];
    return menuButton;
}
+ (Y3GradientButton *)makeSingleCharacterGradientButton:(NSString *) caption withFrame: (CGRect) menuButtonFrame {
    menuButton = [Y3GradientButton buttonWithType:UIButtonTypeRoundedRect];
    [menuButton setFrame:menuButtonFrame];
    
    [menuButton setBackgroundColor:[UIColor colorWithHue:0.23 saturation:0.9 brightness:1.0 alpha:1.0]];
    
    menuButton.layer.cornerRadius = 8;
    menuButton.layer.borderColor = [[UIColor blackColor] CGColor];
    menuButton.layer.borderWidth = 3.0;
    
    [menuButton setTitleEdgeInsets:UIEdgeInsetsMake(2, 2, 2, 2)];
    [menuButton setTitle:caption forState:UIControlStateNormal];
    [menuButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [menuButton setTitleColor:[UIColor yellowColor] forState:UIControlStateSelected];
    // UIFont *expandedFont = [UIFont fontWithName:@"Verdana-Bold" size:20.0];
    UIFont *expandedFont = [UIFont fontWithName:@"Verdana-Bold" size:40.0];
    [menuButton.titleLabel setFont:expandedFont];
    [menuButton.titleLabel setLineBreakMode:NSLineBreakByWordWrapping];
    [menuButton.titleLabel setTextAlignment:NSTextAlignmentCenter];
    [menuButton.titleLabel setAdjustsFontSizeToFitWidth:YES];
    menuButton.clipsToBounds = YES;
    
    CAGradientLayer *gradientLayer = [self makeGradientLayer:NO];
    [menuButton.layer addSublayer:gradientLayer];
    return menuButton;
}

+ (CAGradientLayer *) makeGradientLayer:(Boolean) status
{
    
    CAGradientLayer *gradientLayer = [CAGradientLayer layer];
    CGRect overFlowBounds = menuButton.layer.bounds;
    overFlowBounds.size.height -= 2.0;
    gradientLayer.frame = overFlowBounds;
    
    if (status) {
        gradientLayer.colors = [NSArray arrayWithObjects:
                                (id)[UIColor colorWithWhite:0.4f alpha:0.5f].CGColor,
                                (id)[UIColor colorWithWhite:1.0f alpha:0.1f].CGColor,
                                nil];
    } else {
        gradientLayer.colors = [NSArray arrayWithObjects:
                                (id)[UIColor colorWithWhite:1.0f alpha:0.1f].CGColor,
                                (id)[UIColor colorWithWhite:0.4f alpha:0.5f].CGColor,
                                nil];
    }
    
    gradientLayer.locations = [NSArray arrayWithObjects:
                               [NSNumber numberWithFloat:0.0f],
                               [NSNumber numberWithFloat:1.0f],
                               nil];
    
    gradientLayer.cornerRadius = 6; // refillButton.layer.cornerRadius;
    
    return gradientLayer;
}

-(void)showDepressed:(Boolean)state
{
    NSLog(@"GradientButton: showDepressed: %@", ( state ? @"PUSHED" : @"RELEASED"));
    // [self setBackgroundColor:[UIColor colorWithHue:0.13 saturation:0.9 brightness:1.0 alpha:1.0]];
    [self.layer removeFromSuperlayer];
    
    CAGradientLayer *gradientLayer = [Y3GradientButton makeGradientLayer:state];
    [self.layer addSublayer:gradientLayer];

}

- (void) showText:(NSString *) caption
{
    [menuButton setTitle:caption forState:UIControlStateNormal];
    [menuButton setNeedsDisplay];
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

@end