NSParagraphStyleExtensions.swift

//
//  NSParagraphStyleExtensions.swift
//  Proton
//
//  Created by Rajdeep Kwatra on 28/5/20.
//  Copyright © 2020 Rajdeep Kwatra. 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.
//

import Foundation
import UIKit

public extension NSParagraphStyle {

    /// Creates a mutable copy of current style
    var mutableParagraphStyle: NSMutableParagraphStyle {
        let copy = self.mutableCopy() as? NSMutableParagraphStyle
        return copy ?? NSMutableParagraphStyle()
    }

    /// Returns `LineFormatting` based on current style
    var lineFormatting: LineFormatting {
        return LineFormatting(indentation: firstLineHeadIndent,
                              spacingBefore: paragraphSpacingBefore,
                              spacingAfter: paragraphSpacing)
    }
}