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311 lines
11 KiB
Objective-C
311 lines
11 KiB
Objective-C
// Kindly stolen from https://github.com/BigZaphod/Chameleon
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/*
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* Copyright (c) 2011, The Iconfactory. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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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
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of The Iconfactory nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE ICONFACTORY BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if !TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
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#import "UIBezierPath.h"
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@implementation UIBezierPath {
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CGFloat *_lineDashPattern;
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NSInteger _lineDashCount;
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CGFloat _lineDashPhase;
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}
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@synthesize CGPath = _path;
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- (id)init {
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self = [super init];
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if (self) {
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_path = CGPathCreateMutable();
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_lineWidth = 1;
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_lineCapStyle = kCGLineCapButt;
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_lineJoinStyle = kCGLineJoinMiter;
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_miterLimit = 10;
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_flatness = 0.6;
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_usesEvenOddFillRule = NO;
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_lineDashPattern = NULL;
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_lineDashCount = 0;
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_lineDashPhase = 0;
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}
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return self;
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}
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- (void)dealloc {
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if (_path) CGPathRelease(_path);
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}
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- (id)copyWithZone:(NSZone *)zone {
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UIBezierPath *copy = [[self class] new];
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copy.CGPath = self.CGPath;
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copy.lineWidth = self.lineWidth;
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copy.lineCapStyle = self.lineCapStyle;
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copy.lineJoinStyle = self.lineJoinStyle;
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copy.miterLimit = self.miterLimit;
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copy.flatness = self.flatness;
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copy.usesEvenOddFillRule = self.usesEvenOddFillRule;
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NSInteger lineDashCount = 0;
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[self getLineDash:NULL count:&lineDashCount phase:NULL];
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if (lineDashCount > 0) {
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CGFloat *lineDashPattern = malloc(sizeof(CGFloat) * lineDashCount);
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CGFloat lineDashPhase = 0;
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[self getLineDash:lineDashPattern count:NULL phase:&lineDashPhase];
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[copy setLineDash:lineDashPattern count:lineDashCount phase:lineDashPhase];
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free(lineDashPattern);
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}
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return copy;
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}
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+ (UIBezierPath *)bezierPathWithCGPath:(CGPathRef)CGPath {
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NSAssert(CGPath != NULL, @"CGPath must not be NULL");
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UIBezierPath *bezierPath = [[self alloc] init];
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bezierPath.CGPath = CGPath;
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return bezierPath;
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}
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+ (UIBezierPath *)bezierPath {
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UIBezierPath *bezierPath = [[self alloc] init];
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return bezierPath;
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}
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+ (UIBezierPath *)bezierPathWithRect:(CGRect)rect {
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CGMutablePathRef path = CGPathCreateMutable();
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CGPathAddRect(path, NULL, rect);
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UIBezierPath *bezierPath = [[self alloc] init];
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bezierPath->_path = path;
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return bezierPath;
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}
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+ (UIBezierPath *)bezierPathWithOvalInRect:(CGRect)rect {
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CGMutablePathRef path = CGPathCreateMutable();
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CGPathAddEllipseInRect(path, NULL, rect);
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UIBezierPath *bezierPath = [[self alloc] init];
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bezierPath->_path = path;
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return bezierPath;
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}
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+ (UIBezierPath *)bezierPathWithRoundedRect:(CGRect)rect
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cornerRadius:(CGFloat)cornerRadius {
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return [self bezierPathWithRoundedRect:rect
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byRoundingCorners:UIRectCornerAllCorners
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cornerRadii:CGSizeMake(cornerRadius, cornerRadius)];
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}
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+ (UIBezierPath *)bezierPathWithRoundedRect:(CGRect)rect
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byRoundingCorners:(UIRectCorner)corners
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cornerRadii:(CGSize)cornerRadii {
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CGMutablePathRef path = CGPathCreateMutable();
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const CGPoint topLeft = rect.origin;
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const CGPoint topRight = CGPointMake(CGRectGetMaxX(rect), CGRectGetMinY(rect));
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const CGPoint bottomRight = CGPointMake(CGRectGetMaxX(rect), CGRectGetMaxY(rect));
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const CGPoint bottomLeft = CGPointMake(CGRectGetMinX(rect), CGRectGetMaxY(rect));
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if (corners & UIRectCornerTopLeft) {
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CGPathMoveToPoint(path, NULL, topLeft.x + cornerRadii.width, topLeft.y);
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} else {
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CGPathMoveToPoint(path, NULL, topLeft.x, topLeft.y);
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}
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if (corners & UIRectCornerTopRight) {
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CGPathAddLineToPoint(path, NULL, topRight.x - cornerRadii.width, topRight.y);
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CGPathAddCurveToPoint(path, NULL, topRight.x, topRight.y, topRight.x, topRight.y + cornerRadii.height, topRight.x, topRight.y + cornerRadii.height);
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} else {
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CGPathAddLineToPoint(path, NULL, topRight.x, topRight.y);
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}
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if (corners & UIRectCornerBottomRight) {
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CGPathAddLineToPoint(path, NULL, bottomRight.x, bottomRight.y - cornerRadii.height);
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CGPathAddCurveToPoint(path, NULL, bottomRight.x, bottomRight.y, bottomRight.x - cornerRadii.width, bottomRight.y, bottomRight.x - cornerRadii.width, bottomRight.y);
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} else {
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CGPathAddLineToPoint(path, NULL, bottomRight.x, bottomRight.y);
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}
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if (corners & UIRectCornerBottomLeft) {
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CGPathAddLineToPoint(path, NULL, bottomLeft.x + cornerRadii.width, bottomLeft.y);
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CGPathAddCurveToPoint(path, NULL, bottomLeft.x, bottomLeft.y, bottomLeft.x, bottomLeft.y - cornerRadii.height, bottomLeft.x, bottomLeft.y - cornerRadii.height);
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} else {
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CGPathAddLineToPoint(path, NULL, bottomLeft.x, bottomLeft.y);
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}
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if (corners & UIRectCornerTopLeft) {
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CGPathAddLineToPoint(path, NULL, topLeft.x, topLeft.y + cornerRadii.height);
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CGPathAddCurveToPoint(path, NULL, topLeft.x, topLeft.y, topLeft.x + cornerRadii.width, topLeft.y, topLeft.x + cornerRadii.width, topLeft.y);
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} else {
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CGPathAddLineToPoint(path, NULL, topLeft.x, topLeft.y);
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}
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CGPathCloseSubpath(path);
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UIBezierPath *bezierPath = [[self alloc] init];
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bezierPath->_path = path;
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return bezierPath;
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}
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+ (UIBezierPath *)bezierPathWithArcCenter:(CGPoint)center
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radius:(CGFloat)radius
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startAngle:(CGFloat)startAngle
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endAngle:(CGFloat)endAngle
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clockwise:(BOOL)clockwise {
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CGMutablePathRef path = CGPathCreateMutable();
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CGPathAddArc(path, NULL, center.x, center.y, radius, startAngle, endAngle, clockwise);
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UIBezierPath *bezierPath = [[self alloc] init];
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bezierPath->_path = path;
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return bezierPath;
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}
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- (void)moveToPoint:(CGPoint)point {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathMoveToPoint(mutablePath, NULL, point.x, point.y);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)addLineToPoint:(CGPoint)point {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathAddLineToPoint(mutablePath, NULL, point.x, point.y);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)addArcWithCenter:(CGPoint)center radius:(CGFloat)radius startAngle:(CGFloat)startAngle endAngle:(CGFloat)endAngle clockwise:(BOOL)clockwise {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathAddArc(mutablePath, NULL, center.x, center.y, radius, startAngle, endAngle, clockwise);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)addCurveToPoint:(CGPoint)endPoint controlPoint1:(CGPoint)controlPoint1 controlPoint2:(CGPoint)controlPoint2 {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathAddCurveToPoint(mutablePath, NULL, controlPoint1.x, controlPoint1.y, controlPoint2.x, controlPoint2.y, endPoint.x, endPoint.y);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)addQuadCurveToPoint:(CGPoint)endPoint controlPoint:(CGPoint)controlPoint {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathAddQuadCurveToPoint(mutablePath, NULL, controlPoint.x, controlPoint.y, endPoint.x, endPoint.y);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)closePath {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathCloseSubpath(mutablePath);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)removeAllPoints {
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CGMutablePathRef mutablePath = CGPathCreateMutable();
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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- (void)appendPath:(UIBezierPath *)bezierPath {
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if (bezierPath) {
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CGMutablePathRef mutablePath = CGPathCreateMutableCopy(_path);
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CGPathAddPath(mutablePath, NULL, bezierPath.CGPath);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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}
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- (void)setCGPath:(CGPathRef)path {
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NSAssert(path != NULL, @"path must not be NULL");
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if (path != _path) {
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if (_path) CGPathRelease(_path);
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_path = CGPathCreateCopy(path);
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}
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}
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- (CGPoint)currentPoint {
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return CGPathGetCurrentPoint(_path);
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}
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- (void)setLineDash:(const CGFloat *)pattern count:(NSInteger)count phase:(CGFloat)phase {
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free(_lineDashPattern);
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if (pattern && count > 0) {
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const size_t size = sizeof(CGFloat) * count;
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_lineDashPattern = malloc(size);
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bcopy(pattern, _lineDashPattern, size);
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} else {
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_lineDashPattern = NULL;
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}
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_lineDashCount = count;
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_lineDashPhase = phase;
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}
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- (void)getLineDash:(CGFloat *)pattern count:(NSInteger *)count phase:(CGFloat *)phase {
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if (pattern && _lineDashPattern && _lineDashCount > 0) {
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const size_t size = sizeof(CGFloat) * _lineDashCount;
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bcopy(_lineDashPattern, pattern, size);
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}
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if (count) {
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*count = _lineDashCount;
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}
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if (phase) {
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*phase = _lineDashPhase;
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}
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}
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- (BOOL)containsPoint:(CGPoint)point {
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return CGPathContainsPoint(_path, NULL, point, _usesEvenOddFillRule);
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}
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- (BOOL)isEmpty {
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return CGPathIsEmpty(_path);
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}
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- (CGRect)bounds {
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return CGPathGetBoundingBox(_path);
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}
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- (void)applyTransform:(CGAffineTransform)transform {
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CGMutablePathRef mutablePath = CGPathCreateMutable();
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CGPathAddPath(mutablePath, &transform, _path);
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self.CGPath = mutablePath;
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CGPathRelease(mutablePath);
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}
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@end
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#endif
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