mirror of
https://github.com/zoriya/react-native-svg.git
synced 2025-12-20 14:05:09 +00:00
151 lines
2.9 KiB
Objective-C
151 lines
2.9 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Horcrux.
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* All rights reserved.
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*
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* This source code is licensed under the MIT-style license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "RNSVGNode.h"
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#import "RNSVGContainer.h"
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#import "RNSVGClipPath.h"
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@implementation RNSVGNode
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- (void)insertSubview:(UIView *)subview atIndex:(NSInteger)index
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{
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[self invalidate];
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[super insertSubview:subview atIndex:index];
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}
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- (void)removeFromSuperview
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{
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[self invalidate];
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[super removeFromSuperview];
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}
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- (void)setOpacity:(CGFloat)opacity
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{
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if (opacity == _opacity) {
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return;
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}
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if (opacity < 0) {
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opacity = 0;
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} else if (opacity > 1) {
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opacity = 1;
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}
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[self invalidate];
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_opacity = opacity;
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}
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- (void)setTrans:(CGAffineTransform)trans
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{
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[self invalidate];
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super.transform = trans;
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}
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- (void)invalidate
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{
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id<RNSVGContainer> container = (id<RNSVGContainer>)self.superview;
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[container invalidate];
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}
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- (void)renderTo:(CGContextRef)context
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{
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float opacity = self.opacity;
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BOOL transparent = opacity < 1;
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// This needs to be painted on a layer before being composited.
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CGContextSaveGState(context);
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CGContextConcatCTM(context, self.transform);
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CGContextSetAlpha(context, opacity);
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if (transparent) {
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CGContextBeginTransparencyLayer(context, NULL);
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}
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[self renderLayerTo:context];
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if (transparent) {
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CGContextEndTransparencyLayer(context);
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}
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CGContextRestoreGState(context);
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}
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- (void)setClipPath:(CGPathRef)clipPath
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{
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if (_clipPath == clipPath) {
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return;
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}
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[self invalidate];
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CGPathRelease(_clipPath);
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_clipPath = CGPathRetain(clipPath);
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}
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- (CGPathRef)getPath: (CGContextRef) context
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{
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// abstract
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return CGPathCreateMutable();
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}
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- (CGPathRef)getClipPath
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{
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CGPathRef clipPath = nil;
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if (self.clipPath) {
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clipPath = self.clipPath;
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} else if (self.clipPathId) {
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clipPath = [[self getSvgView] getDefinedClipPath:self.clipPathId];
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}
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return clipPath;
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}
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- (void)clip:(CGContextRef)context
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{
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CGPathRef clipPath = [self getClipPath];
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if (clipPath != NULL) {
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CGContextAddPath(context, [self getClipPath]);
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if (self.clipRule == kRNSVGCGFCRuleEvenodd) {
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CGContextEOClip(context);
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} else {
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CGContextClip(context);
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}
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}
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}
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- (void)reactSetInheritedBackgroundColor:(UIColor *)inheritedBackgroundColor
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{
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self.backgroundColor = inheritedBackgroundColor;
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}
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- (void)renderLayerTo:(CGContextRef)context
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{
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// abstract
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}
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- (RNSVGSvgView *)getSvgView
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{
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UIView *parent = self.superview;
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while ([parent class] != [RNSVGSvgView class]) {
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parent = parent.superview;
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}
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return (RNSVGSvgView *)parent;
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}
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- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event;
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{
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// abstract
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return nil;
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}
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- (void)dealloc
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{
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CGPathRelease(_clipPath);
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}
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@end
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