components/private/ShapeLibrary/src/MDCPillShapeGenerator.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 <CoreGraphics/CoreGraphics.h>

#import "MDCPillShapeGenerator.h"

#import "MaterialMath.h"
#import "MDCRoundedCornerTreatment.h"

@implementation MDCPillShapeGenerator {
  MDCRectangleShapeGenerator *_rectangleGenerator;
  MDCRoundedCornerTreatment *_cornerShape;
}

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

- (instancetype)initWithCoder:(NSCoder *)__unused aDecoder {
  if (self = [super init]) {
    [self commonInit];
  }
  return self;
}

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

- (void)commonInit {
  _cornerShape = [[MDCRoundedCornerTreatment alloc] init];
  _rectangleGenerator = [[MDCRectangleShapeGenerator alloc] init];
  [_rectangleGenerator setCorners:_cornerShape];
}

- (void)encodeWithCoder:(NSCoder *)__unused aCoder {
  // no-op, we have no params
}

- (CGPathRef)pathForSize:(CGSize)size {
  CGFloat radius = 0.5f * MIN(MDCFabs(size.width), MDCFabs(size.height));
  if (radius > 0) {
    [_rectangleGenerator setCorners:[[MDCRoundedCornerTreatment alloc] initWithRadius:radius]];
  }
  return [_rectangleGenerator pathForSize:size];
}

+ (BOOL)supportsSecureCoding {
  return YES;
}

@end