edwardean

- (void)rotatePath:(UIBezierPath *)path degree:(CGFloat)degree {
    CGRect bounds = CGPathGetBoundingBox(path.CGPath);
    CGPoint center = CGPointMake(CGRectGetMidX(bounds), CGRectGetMidY(bounds));
    
    CGFloat radians = (degree / 180.0f * M_PI);
    CGAffineTransform transform = CGAffineTransformIdentity;
    transform = CGAffineTransformTranslate(transform, center.x, center.y);
    transform = CGAffineTransformRotate(transform, radians);
    transform = CGAffineTransformTranslate(transform, -center.x, -center.y);
    [path applyTransform:transform];

andrey-str

// color - source color, which is must be replaced
// withColor - target color
// tolerance - value in range from 0 to 1
func replaceColor(color:SKColor, withColor:SKColor, image:UIImage, tolerance:CGFloat) -> UIImage{
    
    // This function expects to get source color(color which is supposed to be replaced) 
    // and target color in RGBA color space, hence we expect to get 4 color components: r, g, b, a
    assert(CGColorGetNumberOfComponents(color.CGColor) == 4 && CGColorGetNumberOfComponents(withColor.CGColor) == 4,
           "Must be RGBA colorspace")

HugoPoi

Resize a VM system disk

Introduction

• You have a VM with small disk
• You have GPT partition table
• You NOT USE LVM (you should)
• You need to extend a partition on the main drive
• You use Debian 8.x aka Jessie

Extend the disk

konnnn

/*
If you use Storyboard, don't forget to set UIlabel to PaddingLabel
*/

import UIKit

class PaddingLabel: UILabel {
    
    var topInset: CGFloat
    var bottomInset: CGFloat