//
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// UIView+YYAdd.m
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// YYCategories <https://github.com/ibireme/YYCategories>
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//
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// Created by ibireme on 13/4/3.
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// Copyright (c) 2015 ibireme.
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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 "UIView+YYAdd.h"
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#import <QuartzCore/QuartzCore.h>
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#import "YYCategoriesMacro.h"
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YYSYNTH_DUMMY_CLASS(UIView_YYAdd)
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@implementation UIView (YYAdd)
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- (UIImage *)snapshotImage {
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UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, 0);
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[self.layer renderInContext:UIGraphicsGetCurrentContext()];
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UIImage *snap = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return snap;
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}
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- (UIImage *)snapshotImageAfterScreenUpdates:(BOOL)afterUpdates {
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if (![self respondsToSelector:@selector(drawViewHierarchyInRect:afterScreenUpdates:)]) {
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return [self snapshotImage];
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}
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UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, 0);
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[self drawViewHierarchyInRect:self.bounds afterScreenUpdates:afterUpdates];
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UIImage *snap = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return snap;
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}
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- (NSData *)snapshotPDF {
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CGRect bounds = self.bounds;
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NSMutableData* data = [NSMutableData data];
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CGDataConsumerRef consumer = CGDataConsumerCreateWithCFData((__bridge CFMutableDataRef)data);
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CGContextRef context = CGPDFContextCreate(consumer, &bounds, NULL);
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CGDataConsumerRelease(consumer);
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if (!context) return nil;
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CGPDFContextBeginPage(context, NULL);
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CGContextTranslateCTM(context, 0, bounds.size.height);
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CGContextScaleCTM(context, 1.0, -1.0);
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[self.layer renderInContext:context];
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CGPDFContextEndPage(context);
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CGPDFContextClose(context);
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CGContextRelease(context);
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return data;
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}
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- (void)setLayerShadow:(UIColor*)color offset:(CGSize)offset radius:(CGFloat)radius {
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self.layer.shadowColor = color.CGColor;
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self.layer.shadowOffset = offset;
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self.layer.shadowRadius = radius;
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self.layer.shadowOpacity = 1;
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self.layer.shouldRasterize = YES;
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self.layer.rasterizationScale = [UIScreen mainScreen].scale;
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}
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- (void)removeAllSubviews {
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//[self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
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while (self.subviews.count) {
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[self.subviews.lastObject removeFromSuperview];
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}
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}
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- (UIViewController *)viewController {
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for (UIView *view = self; view; view = view.superview) {
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UIResponder *nextResponder = [view nextResponder];
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if ([nextResponder isKindOfClass:[UIViewController class]]) {
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return (UIViewController *)nextResponder;
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}
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}
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return nil;
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}
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- (CGFloat)visibleAlpha {
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if ([self isKindOfClass:[UIWindow class]]) {
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if (self.hidden) return 0;
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return self.alpha;
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}
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if (!self.window) return 0;
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CGFloat alpha = 1;
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UIView *v = self;
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while (v) {
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if (v.hidden) {
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alpha = 0;
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break;
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}
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alpha *= v.alpha;
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v = v.superview;
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}
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return alpha;
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}
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- (CGPoint)convertPoint:(CGPoint)point toViewOrWindow:(UIView *)view {
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if (!view) {
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if ([self isKindOfClass:[UIWindow class]]) {
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return [((UIWindow *)self) convertPoint:point toWindow:nil];
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} else {
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return [self convertPoint:point toView:nil];
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}
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}
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UIWindow *from = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
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UIWindow *to = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
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if ((!from || !to) || (from == to)) return [self convertPoint:point toView:view];
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point = [self convertPoint:point toView:from];
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point = [to convertPoint:point fromWindow:from];
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point = [view convertPoint:point fromView:to];
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return point;
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}
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- (CGPoint)convertPoint:(CGPoint)point fromViewOrWindow:(UIView *)view {
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if (!view) {
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if ([self isKindOfClass:[UIWindow class]]) {
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return [((UIWindow *)self) convertPoint:point fromWindow:nil];
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} else {
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return [self convertPoint:point fromView:nil];
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}
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}
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UIWindow *from = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
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UIWindow *to = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
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if ((!from || !to) || (from == to)) return [self convertPoint:point fromView:view];
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point = [from convertPoint:point fromView:view];
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point = [to convertPoint:point fromWindow:from];
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point = [self convertPoint:point fromView:to];
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return point;
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}
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- (CGRect)convertRect:(CGRect)rect toViewOrWindow:(UIView *)view {
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if (!view) {
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if ([self isKindOfClass:[UIWindow class]]) {
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return [((UIWindow *)self) convertRect:rect toWindow:nil];
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} else {
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return [self convertRect:rect toView:nil];
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}
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}
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UIWindow *from = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
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UIWindow *to = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
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if (!from || !to) return [self convertRect:rect toView:view];
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if (from == to) return [self convertRect:rect toView:view];
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rect = [self convertRect:rect toView:from];
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rect = [to convertRect:rect fromWindow:from];
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rect = [view convertRect:rect fromView:to];
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return rect;
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}
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- (CGRect)convertRect:(CGRect)rect fromViewOrWindow:(UIView *)view {
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if (!view) {
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if ([self isKindOfClass:[UIWindow class]]) {
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return [((UIWindow *)self) convertRect:rect fromWindow:nil];
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} else {
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return [self convertRect:rect fromView:nil];
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}
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}
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UIWindow *from = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
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UIWindow *to = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
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if ((!from || !to) || (from == to)) return [self convertRect:rect fromView:view];
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rect = [from convertRect:rect fromView:view];
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rect = [to convertRect:rect fromWindow:from];
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rect = [self convertRect:rect fromView:to];
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return rect;
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}
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- (CGFloat)left {
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return self.frame.origin.x;
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}
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- (void)setLeft:(CGFloat)x {
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CGRect frame = self.frame;
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frame.origin.x = x;
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self.frame = frame;
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}
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- (CGFloat)top {
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return self.frame.origin.y;
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}
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- (void)setTop:(CGFloat)y {
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CGRect frame = self.frame;
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frame.origin.y = y;
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self.frame = frame;
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}
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- (CGFloat)right {
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return self.frame.origin.x + self.frame.size.width;
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}
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- (void)setRight:(CGFloat)right {
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CGRect frame = self.frame;
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frame.origin.x = right - frame.size.width;
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self.frame = frame;
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}
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- (CGFloat)bottom {
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return self.frame.origin.y + self.frame.size.height;
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}
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- (void)setBottom:(CGFloat)bottom {
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CGRect frame = self.frame;
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frame.origin.y = bottom - frame.size.height;
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self.frame = frame;
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}
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- (CGFloat)width {
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return self.frame.size.width;
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}
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- (void)setWidth:(CGFloat)width {
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CGRect frame = self.frame;
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frame.size.width = width;
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self.frame = frame;
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}
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- (CGFloat)height {
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return self.frame.size.height;
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}
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- (void)setHeight:(CGFloat)height {
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CGRect frame = self.frame;
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frame.size.height = height;
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self.frame = frame;
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}
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- (CGFloat)centerX {
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return self.center.x;
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}
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- (void)setCenterX:(CGFloat)centerX {
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self.center = CGPointMake(centerX, self.center.y);
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}
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- (CGFloat)centerY {
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return self.center.y;
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}
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- (void)setCenterY:(CGFloat)centerY {
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self.center = CGPointMake(self.center.x, centerY);
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}
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- (CGPoint)origin {
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return self.frame.origin;
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}
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- (void)setOrigin:(CGPoint)origin {
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CGRect frame = self.frame;
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frame.origin = origin;
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self.frame = frame;
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}
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- (CGSize)size {
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return self.frame.size;
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}
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- (void)setSize:(CGSize)size {
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CGRect frame = self.frame;
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frame.size = size;
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self.frame = frame;
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}
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@end
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