103 lines
4.2 KiB
Objective-C
103 lines
4.2 KiB
Objective-C
/*
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Copyright (c) 2018, Apple Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. Neither the name of the copyright holder(s) nor the names of any contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission. No license is granted to the trademarks of
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the copyright holders even if such marks are included in this software.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "ORKAmslerGridContentView.h"
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@interface ORKAmslerGridContentView() {
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UIBezierPath *path;
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CGFloat dimension;
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}
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@end
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@implementation ORKAmslerGridContentView
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- (void)plotAmslerGrid {
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dimension = MIN(self.bounds.size.width, self.bounds.size.height);
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path = [[UIBezierPath alloc] init];
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path.lineWidth = _lineWidth;
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CGFloat cellSize = dimension/_numberOfCellsPerSide;
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for (int index = 0; index < _numberOfCellsPerSide; index ++) {
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CGPoint startVertical = CGPointMake((CGFloat)index * cellSize, 0);
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CGPoint endVertical = CGPointMake((CGFloat)index * cellSize, dimension);
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[path moveToPoint:startVertical];
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[path addLineToPoint:endVertical];
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CGPoint startHorizontal = CGPointMake(0, (CGFloat)index * cellSize);
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CGPoint endHorizontal = CGPointMake(dimension, (CGFloat)index * cellSize);
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[path moveToPoint:startHorizontal];
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[path addLineToPoint:endHorizontal];
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}
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[path closePath];
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}
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- (void)drawRect:(CGRect)rect {
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[super drawRect:rect];
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[_backgroundColor setFill];
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CGContextFillRect(UIGraphicsGetCurrentContext(), rect);
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[self plotAmslerGrid];
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[_lineColor setStroke];
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[path stroke];
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UIBezierPath *circleInTheCenter = [UIBezierPath bezierPathWithArcCenter:CGPointMake(dimension/2, dimension/2) radius:dimension/_ratioOfWidthToRadius startAngle:0 endAngle:360 clockwise:YES];
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[_lineColor setFill];
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[circleInTheCenter fill];
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}
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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_numberOfCellsPerSide = 10;
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_lineWidth = 1.0;
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_ratioOfWidthToRadius = 75;
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_lineColor = [UIColor blackColor];
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_backgroundColor = [UIColor whiteColor];
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[self setDimensionConstraint];
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}
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return self;
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}
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- (void)setDimensionConstraint {
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[NSLayoutConstraint activateConstraints:@[
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[NSLayoutConstraint constraintWithItem:self
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attribute:NSLayoutAttributeHeight
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relatedBy:NSLayoutRelationEqual
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toItem:self
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attribute:NSLayoutAttributeWidth
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multiplier:1.0
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constant:0.0]
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]];
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}
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@end
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