//
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// HQEditImageEditView.m
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// CivilAviation
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//
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// Created by iOS on 2019/4/1.
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// Copyright © 2019 iOS. All rights reserved.
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//
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#import "HQEditImageEditView.h"
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@interface HQEditImageEditView ()
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@property (nonatomic, assign) BOOL isMoving;
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@end
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@implementation HQEditImageEditView
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- (instancetype)initWithMargin:(UIEdgeInsets)margin size:(CGSize)size {
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if (self = [super init]) {
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self.layer.masksToBounds = NO;
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self.margin = margin;
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self.previewSize = size;
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[self addSubview:self.maskView];
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[self addSubview:self.preView];
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[self.preView addSubview:self.lineWrap];
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[self.lineWrap addSubview:self.imageWrap];
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[self makeConstraints];
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}
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return self;
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}
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- (void)makeConstraints {
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[self.maskView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(@(-self.margin.top));
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make.left.equalTo(@(-self.margin.left));
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make.width.equalTo(@(self.previewSize.width + self.margin.left + self.margin.right));
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make.height.equalTo(@(self.previewSize.height + self.margin.top + self.margin.bottom));
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}];
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[self.preView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.edges.equalTo(@0);
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}];
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[self.imageWrap mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.top.equalTo(@-1.5f);
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make.bottom.right.equalTo(@1.5f);
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}];
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}
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#pragma mark - public method
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- (void)maskViewShowWithDuration:(CGFloat)duration {
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if (self.maskViewAnimation) {
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[UIView animateWithDuration:duration animations:^{
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self.maskView.alpha = 1;
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}];
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}
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}
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- (void)maskViewHideWithDuration:(CGFloat)duration {
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if (self.maskViewAnimation) {
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[UIView animateWithDuration:duration animations:^{
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self.maskView.alpha = 0;
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}];
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}
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}
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#pragma mark - private method
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- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
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if (self.imageWrap.hidden == NO && self.isMoving == NO) {
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for (UIView *view in self.imageWrap.subviews) {
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CGRect rect = [view convertRect:view.bounds toView:self];
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CGRect touchRect;
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switch (view.tag) {
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case 0: // 左上
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touchRect = CGRectMake(rect.origin.x - rect.size.width, rect.origin.y - rect.size.height, rect.size.width*2, rect.size.height * 2);
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break;
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case 1: // 右上
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touchRect = CGRectMake(rect.origin.x, rect.origin.y - rect.size.height, rect.size.width*2, rect.size.height * 2);
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break;
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case 2: // 左下
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touchRect = CGRectMake(rect.origin.x - rect.size.width, rect.origin.y , rect.size.width*2, rect.size.height * 2);
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break;
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case 3: // 右下
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touchRect = CGRectMake(rect.origin.x, rect.origin.y, rect.size.width*2, rect.size.height * 2);
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break;
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default:
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touchRect = CGRectZero;
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break;
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}
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if (CGRectContainsPoint(touchRect, point)) {
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return view;
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}
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}
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}
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return nil;
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}
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#pragma mark - touch
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- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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self.isMoving = YES;
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[self maskViewHideWithDuration:.2f];
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}
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- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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CGPoint current = [touches.anyObject locationInView:self];
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CGPoint pre = [touches.anyObject previousLocationInView:self];
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if (touches.anyObject.view.tag == 0) { // 左上
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CGPoint move = CGPointMake(current.x - pre.x, current.y - pre.y);
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CGFloat moveFit = fabs(move.x) > fabs(move.y) ? move.x : move.y;
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CGFloat x = (self.lineWrap.frame.origin.x + moveFit) >= 0 ? (self.lineWrap.frame.origin.x + moveFit) : 0;
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if (x >= self.previewSize.width/3.f) {
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x = self.previewSize.width/3.f;
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}
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CGFloat y = (self.previewSize.height/self.previewSize.width) * x;
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self.lineWrap.frame = CGRectMake(x, y, self.previewSize.width - x, self.previewSize.height - y);
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} else if (touches.anyObject.view.tag == 1) { // 右上
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CGPoint move = CGPointMake(pre.x - current.x, current.y - pre.y);
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CGFloat moveFit = fabs(move.x) > fabs(move.y) ? move.x : move.y;
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CGFloat width = (self.lineWrap.frame.size.width - moveFit) <= self.previewSize.width ? (self.lineWrap.frame.size.width - moveFit) : self.previewSize.width;
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if (width <= self.previewSize.width*2/3.f) {
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width = self.previewSize.width*2/3.f;
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}
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CGFloat height = (self.previewSize.height/self.previewSize.width) * width;
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CGFloat y = self.previewSize.height - height;
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self.lineWrap.frame = CGRectMake(0, y, width, height);
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} else if (touches.anyObject.view.tag == 2) { // 左下
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CGPoint move = CGPointMake(current.x - pre.x, pre.y - current.y);
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CGFloat moveFit = fabs(move.x) > fabs(move.y) ? move.x : move.y;
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CGFloat x = (self.lineWrap.frame.origin.x + moveFit) >= 0 ? (self.lineWrap.frame.origin.x + moveFit) : 0;
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if (x >= self.previewSize.width/3.f) {
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x = self.previewSize.width/3.f;
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}
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CGFloat height = self.previewSize.height - x*(self.previewSize.height/self.previewSize.width);
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self.lineWrap.frame = CGRectMake(x, 0, self.previewSize.width - x, height);
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} else if (touches.anyObject.view.tag == 3) { // 右下
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CGPoint move = CGPointMake(pre.x - current.x, pre.y - current.y);
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CGFloat moveFit = fabs(move.x) > fabs(move.y) ? move.x : move.y;
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CGFloat width = (self.lineWrap.frame.size.width - moveFit) <= self.previewSize.width ? (self.lineWrap.frame.size.width - moveFit) : self.previewSize.width;
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if (width <= self.previewSize.width*2/3.f) {
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width = self.previewSize.width*2/3.f;
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}
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CGFloat height = (self.previewSize.height/self.previewSize.width) * width;;
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self.lineWrap.frame = CGRectMake(0, 0, width, height);
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}
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}
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- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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[self.lineWrap mas_remakeConstraints:^(MASConstraintMaker *make) {
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make.edges.equalTo(@0);
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}];
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}
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- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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if (!self.isMoving) {
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return;
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}
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CGRect orignalFrame = self.lineWrap.frame;
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self.imageWrap.hidden = YES;
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if (touches.anyObject.view.tag == 0) { // 左上
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self.lineWrap.layer.anchorPoint = CGPointMake(1, 1);
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} else if (touches.anyObject.view.tag == 1) { // 右上
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self.lineWrap.layer.anchorPoint = CGPointMake(0, 1);
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} else if (touches.anyObject.view.tag == 2) { // 左下
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self.lineWrap.layer.anchorPoint = CGPointMake(1, 0);
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} else if (touches.anyObject.view.tag == 3) { // 右下
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self.lineWrap.layer.anchorPoint = CGPointMake(0, 0);
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}
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self.lineWrap.frame = orignalFrame;
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if ([self.delegate respondsToSelector:@selector(editView:anchorPointIndex:rect:)]) {
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[self.delegate editView:self anchorPointIndex:touches.anyObject.view.tag rect:self.lineWrap.frame];
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}
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[UIView animateWithDuration:.2f animations:^{
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self.lineWrap.transform = CGAffineTransformMakeScale(self.previewSize.width/self.lineWrap.frame.size.width, self.previewSize.height/self.lineWrap.frame.size.height);
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} completion:^(BOOL finished) {
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self.isMoving = NO;
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self.imageWrap.hidden = NO;
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self.lineWrap.layer.anchorPoint = CGPointMake(.5f, .5f);
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self.lineWrap.transform = CGAffineTransformIdentity;
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self.lineWrap.frame = CGRectMake(0, 0, self.previewSize.width, self.previewSize.height);
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}];
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}
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#pragma mark - getter & setter
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- (UIView *)preView {
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if (!_preView) {
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_preView = [[UIView alloc] init];
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}
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return _preView;
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}
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- (UIView *)maskView {
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if (!_maskView) {
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_maskView = [[UIView alloc] init];
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_maskView.backgroundColor = [UIColor colorWithWhite:0 alpha:.85f];
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UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(0, 0, self.previewSize.width + self.margin.left + self.margin.right, self.previewSize.height + self.margin.top + self.margin.bottom)];
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[path appendPath:[[UIBezierPath bezierPathWithRect:CGRectMake(self.margin.left, self.margin.top, self.previewSize.width, self.previewSize.height)] bezierPathByReversingPath]];
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CAShapeLayer *layer = [CAShapeLayer layer];
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layer.path = path.CGPath;
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[_maskView.layer setMask:layer];
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_maskView.alpha = 0;
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}
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return _maskView;
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}
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- (UIView *)lineWrap {
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if (!_lineWrap) {
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_lineWrap = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.previewSize.width, self.previewSize.height)];
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UIView *top = [[UIView alloc] init];
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[_lineWrap addSubview:top];
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[top mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(@0);
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make.left.right.equalTo(@0);
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make.height.equalTo(@1.5f);
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}];
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UIView *left = [[UIView alloc] init];
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[_lineWrap addSubview:left];
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[left mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.bottom.equalTo(@0);
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make.left.equalTo(@0);
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make.width.equalTo(@1.5f);
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}];
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UIView *right = [[UIView alloc] init];
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[_lineWrap addSubview:right];
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[right mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.bottom.equalTo(@0);
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make.right.equalTo(@0);
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make.width.equalTo(@1.5f);
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}];
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UIView *bottom = [[UIView alloc] init];
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[_lineWrap addSubview:bottom];
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[bottom mas_makeConstraints:^(MASConstraintMaker *make) {
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make.bottom.equalTo(@0);
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make.left.right.equalTo(@0);
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make.height.equalTo(@1.5f);
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}];
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top.layer.backgroundColor = UIColor.whiteColor.CGColor;
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top.layer.shadowColor = [UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:0.3].CGColor;
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top.layer.shadowOffset = CGSizeMake(0,0);
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top.layer.shadowOpacity = 1;
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top.layer.shadowRadius = 2;
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left.layer.backgroundColor = UIColor.whiteColor.CGColor;
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left.layer.shadowColor = [UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:0.3].CGColor;
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left.layer.shadowOffset = CGSizeMake(0,0);
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left.layer.shadowOpacity = 1;
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left.layer.shadowRadius = 2;
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bottom.layer.backgroundColor = UIColor.whiteColor.CGColor;
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bottom.layer.shadowColor = [UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:0.3].CGColor;
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bottom.layer.shadowOffset = CGSizeMake(0,0);
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bottom.layer.shadowOpacity = 1;
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bottom.layer.shadowRadius = 2;
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right.layer.backgroundColor = UIColor.whiteColor.CGColor;
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right.layer.shadowColor = [UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:0.3].CGColor;
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right.layer.shadowOffset = CGSizeMake(0,0);
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right.layer.shadowOpacity = 1;
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right.layer.shadowRadius = 2;
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NSMutableArray *rowLines = [NSMutableArray array];
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for (int i = 0; i < 4; i++) {
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UIView *line = [[UIView alloc] init];
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line.backgroundColor = [UIColor colorWithWhite:1 alpha:.8f];
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[_lineWrap addSubview:line];
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[rowLines addObject:line];
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line.hidden = (i == 0 || i == 3) ? YES : NO;
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}
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[rowLines mas_distributeViewsAlongAxis:MASAxisTypeVertical withFixedItemLength:1 leadSpacing:0 tailSpacing:0];
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[rowLines mas_makeConstraints:^(MASConstraintMaker *make) {
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make.height.equalTo(@1);
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make.left.right.equalTo(@0);
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}];
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NSMutableArray *columnLins = [NSMutableArray array];
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for (int i = 0; i < 4; i++) {
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UIView *line = [[UIView alloc] init];
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line.backgroundColor = [UIColor colorWithWhite:1 alpha:.8f];
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[_lineWrap addSubview:line];
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[columnLins addObject:line];
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line.hidden = (i == 0 || i == 3) ? YES : NO;
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}
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[columnLins mas_distributeViewsAlongAxis:MASAxisTypeHorizontal withFixedItemLength:1 leadSpacing:0 tailSpacing:0];
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[columnLins mas_makeConstraints:^(MASConstraintMaker *make) {
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make.width.equalTo(@1);
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make.top.bottom.equalTo(@0);
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}];
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}
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return _lineWrap;
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}
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- (UIView *)imageWrap {
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if (!_imageWrap) {
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_imageWrap = [[UIView alloc] initWithFrame:CGRectZero];
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UIImageView *topLeft = [[UIImageView alloc] initWithImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cycle_top_left" ofType:@"png"]]];
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topLeft.tag = 0;
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[_imageWrap addSubview:topLeft];
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[topLeft mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.top.equalTo(@0);
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make.width.height.equalTo(@24);
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}];
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UIImageView *topright = [[UIImageView alloc] initWithImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cycle_top_right" ofType:@"png"]]];
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topright.tag = 1;
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[_imageWrap addSubview:topright];
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[topright mas_makeConstraints:^(MASConstraintMaker *make) {
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make.right.top.equalTo(@0);
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make.width.height.equalTo(@24);
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}];
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UIImageView *bottomLeft = [[UIImageView alloc] initWithImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cycle_bottom_left" ofType:@"png"]]];
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bottomLeft.tag = 2;
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[_imageWrap addSubview:bottomLeft];
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[bottomLeft mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.bottom.equalTo(@0);
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make.width.height.equalTo(@24);
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}];
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UIImageView *bottomRight = [[UIImageView alloc] initWithImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cycle_bottom_right" ofType:@"png"]]];
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bottomRight.tag = 3;
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[_imageWrap addSubview:bottomRight];
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[bottomRight mas_makeConstraints:^(MASConstraintMaker *make) {
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make.bottom.right.equalTo(@0);
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make.width.height.equalTo(@24);
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}];
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}
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return _imageWrap;
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}
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@end
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