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MTMR/MTMR/SupportHelpers.swift
2018-05-07 09:04:33 +07:00

108 lines
4.1 KiB
Swift

//
// SupportHelpers.swift
// MTMR
//
// Created by Anton Palgunov on 13/04/2018.
// Copyright © 2018 Anton Palgunov. All rights reserved.
//
import Foundation
import AppKit
extension String {
func trim() -> String {
return self.trimmingCharacters(in: NSCharacterSet.whitespaces)
}
func stripComments() -> String {
// ((\s|,)\/\*[\s\S]*?\*\/)|(( |, ")\/\/.*)
return self.replacingOccurrences(of: "((\\s|,)\\/\\*[\\s\\S]*?\\*\\/)|(( |, \\\")\\/\\/.*)", with: "", options: .regularExpression)
}
var hexColor: NSColor? {
let hex = trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt32()
Scanner(string: hex).scanHexInt32(&int)
let a, r, g, b: UInt32
switch hex.count {
case 3: // RGB (12-bit)
(r, g, b, a) = ((int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17, 255)
case 6: // RGB (24-bit)
(r, g, b, a) = (int >> 16, int >> 8 & 0xFF, int & 0xFF, 255)
case 8: // ARGB (32-bit)
(r, g, b, a) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
default:
return nil
}
return NSColor(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
}
extension NSImage {
func resize(maxSize:NSSize) -> NSImage {
var ratio:Float = 0.0
let imageWidth = Float(self.size.width)
let imageHeight = Float(self.size.height)
let maxWidth = Float(maxSize.width)
let maxHeight = Float(maxSize.height)
// Get ratio (landscape or portrait)
if (imageWidth > imageHeight) {
// Landscape
ratio = maxWidth / imageWidth;
}
else {
// Portrait
ratio = maxHeight / imageHeight;
}
// Calculate new size based on the ratio
let newWidth = imageWidth * ratio
let newHeight = imageHeight * ratio
// Create a new NSSize object with the newly calculated size
let newSize:NSSize = NSSize(width: Int(newWidth), height: Int(newHeight))
// Cast the NSImage to a CGImage
var imageRect:NSRect = NSMakeRect(0, 0, self.size.width, self.size.height)
let imageRef = self.cgImage(forProposedRect: &imageRect, context: nil, hints: nil)
// Create NSImage from the CGImage using the new size
let imageWithNewSize = NSImage(cgImage: imageRef!, size: newSize)
// Return the new image
return imageWithNewSize
}
func rotateByDegreess(degrees:CGFloat) -> NSImage {
var imageBounds = NSZeroRect ; imageBounds.size = self.size
let pathBounds = NSBezierPath(rect: imageBounds)
var transform = NSAffineTransform()
transform.rotate(byDegrees: degrees)
pathBounds.transform(using: transform as AffineTransform)
let rotatedBounds:NSRect = NSMakeRect(NSZeroPoint.x, NSZeroPoint.y , self.size.width, self.size.height )
let rotatedImage = NSImage(size: rotatedBounds.size)
//Center the image within the rotated bounds
imageBounds.origin.x = NSMidX(rotatedBounds) - (NSWidth(imageBounds) / 2)
imageBounds.origin.y = NSMidY(rotatedBounds) - (NSHeight(imageBounds) / 2)
// Start a new transform
transform = NSAffineTransform()
// Move coordinate system to the center (since we want to rotate around the center)
transform.translateX(by: +(NSWidth(rotatedBounds) / 2 ), yBy: +(NSHeight(rotatedBounds) / 2))
transform.rotate(byDegrees: degrees)
// Move the coordinate system bak to normal
transform.translateX(by: -(NSWidth(rotatedBounds) / 2 ), yBy: -(NSHeight(rotatedBounds) / 2))
// Draw the original image, rotated, into the new image
rotatedImage.lockFocus()
transform.concat()
self.draw(in: imageBounds, from: NSZeroRect, operation: NSCompositingOperation.copy, fraction: 1.0)
rotatedImage.unlockFocus()
return rotatedImage
}
}