components/private/ShapeLibrary/src/MDCSlantedRectShapeGenerator.m

/*
 Copyright 2017-present the Material Components for iOS authors. 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 "MDCSlantedRectShapeGenerator.h"

static NSString *const MDCSlantedRectShapeGeneratorSlantKey =
    @"MDCSlantedRectShapeGeneratorSlantKey";

@implementation MDCSlantedRectShapeGenerator {
  MDCRectangleShapeGenerator *_rectangleGenerator;
}

- (instancetype)init {
  if (self = [super init]) {
    [self commonMDCSlantedRectShapeGeneratorInit];
  }
  return self;
}

- (instancetype)initWithCoder:(NSCoder *)aDecoder {
  if (self = [super init]) {
    [self commonMDCSlantedRectShapeGeneratorInit];

    _slant = (CGFloat)[aDecoder decodeDoubleForKey:MDCSlantedRectShapeGeneratorSlantKey];
  }
  return self;
}

- (void)commonMDCSlantedRectShapeGeneratorInit {
  _rectangleGenerator = [[MDCRectangleShapeGenerator alloc] init];
}

- (void)encodeWithCoder:(NSCoder *)aCoder {
  [aCoder encodeDouble:_slant forKey:MDCSlantedRectShapeGeneratorSlantKey];
}

- (id)copyWithZone:(NSZone *)__unused zone {
  MDCSlantedRectShapeGenerator *copy = [[[self class] alloc] init];
  copy.slant = self.slant;
  return copy;
}

- (void)setSlant:(CGFloat)slant {
  _slant = slant;

  _rectangleGenerator.topLeftCornerOffset     = CGPointMake( slant, 0);
  _rectangleGenerator.topRightCornerOffset    = CGPointMake( slant, 0);
  _rectangleGenerator.bottomLeftCornerOffset  = CGPointMake(-slant, 0);
  _rectangleGenerator.bottomRightCornerOffset = CGPointMake(-slant, 0);
}

- (CGPathRef)pathForSize:(CGSize)size {
  return [_rectangleGenerator pathForSize:size];
}

+ (BOOL)supportsSecureCoding {
  return YES;
}

@end