Curtis Hard
139 lines
2.7 KiB
Objective-C
139 lines
2.7 KiB
Objective-C
//
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// IJSVGPath.m
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// IconJar
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//
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// Created by Curtis Hard on 30/08/2014.
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// Copyright (c) 2014 Curtis Hard. All rights reserved.
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//
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#import "IJSVGGroup.h"
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#import "IJSVGPath.h"
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@implementation IJSVGPath
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@synthesize path;
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@synthesize subpath;
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@synthesize lastControlPoint;
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@synthesize CGPath = _CGPath;
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- (void)dealloc
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{
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if(_CGPath != nil) {
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CGPathRelease(_CGPath);
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_CGPath = nil;
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}
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if (subpath != nil) {
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(void)([subpath release]), subpath = nil;
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}
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[super dealloc];
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}
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- (id)init
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{
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if ((self = [super init]) != nil) {
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subpath = NSBezierPath.bezierPath.retain;
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path = subpath; // for legacy use
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}
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return self;
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}
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- (id)copyWithZone:(NSZone*)zone
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{
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IJSVGPath* node = [super copyWithZone:zone];
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[node overwritePath:self.path];
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return node;
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}
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- (NSPoint)currentPoint
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{
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return [subpath currentPoint];
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}
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- (NSBezierPath*)currentSubpath
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{
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return subpath;
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}
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- (void)close
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{
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[subpath closePath];
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}
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- (CGPathRef)CGPath
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{
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if(_CGPath == nil) {
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_CGPath = [self newPathRefByAutoClosingPath:NO];
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}
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return _CGPath;
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}
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- (void)overwritePath:(NSBezierPath*)aPath
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{
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(void)([subpath release]), subpath = nil;
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subpath = [aPath retain];
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path = subpath;
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}
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- (CGPathRef)newPathRefByAutoClosingPath:(BOOL)autoClose
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{
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NSInteger i = 0;
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NSInteger numElements = self.path.elementCount;
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NSBezierPath* bezPath = self.path;
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// nothing to return
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if (numElements == 0) {
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return NULL;
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}
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CGMutablePathRef aPath = CGPathCreateMutable();
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NSPoint points[3];
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BOOL didClosePath = YES;
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for (i = 0; i < numElements; i++) {
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switch ([bezPath elementAtIndex:i associatedPoints:points]) {
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// move
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case NSMoveToBezierPathElement: {
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CGPathMoveToPoint(aPath, NULL, points[0].x, points[0].y);
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break;
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}
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// line
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case NSLineToBezierPathElement: {
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CGPathAddLineToPoint(aPath, NULL, points[0].x, points[0].y);
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didClosePath = NO;
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break;
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}
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// curve
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case NSCurveToBezierPathElement: {
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CGPathAddCurveToPoint(aPath, NULL, points[0].x, points[0].y,
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points[1].x, points[1].y,
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points[2].x, points[2].y);
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didClosePath = NO;
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break;
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}
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// close
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case NSClosePathBezierPathElement: {
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CGPathCloseSubpath(aPath);
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didClosePath = YES;
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break;
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}
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}
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}
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if (!didClosePath && autoClose) {
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CGPathCloseSubpath(aPath);
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}
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// create immutable and release
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CGPathRef pathToReturn = CGPathCreateCopy(aPath);
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CGPathRelease(aPath);
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return pathToReturn;
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}
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@end
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