//
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// CropImageController.m
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// CropImage
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//
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// Created by limuyun on 2017/1/10.
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// Copyright © 2017年 biiway. All rights reserved.
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//
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#import "CropImageController.h"
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//#import "UIImage+Crop.h"
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#import "GlobalUtlis.h"
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#import "UIImageCrop.h"
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#define ScreenWidth [UIScreen mainScreen].bounds.size.width
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#define ScreenHeight [UIScreen mainScreen].bounds.size.height
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@interface CropImageController ()<UIScrollViewDelegate>
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@property (nonatomic, strong) UIScrollView * scrollView;
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@property (nonatomic, strong) UIImageView * imageView;
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@property (nonatomic, strong) UIImage * originalImage;
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@property (nonatomic, strong) NSString* mCropPicturePath;
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//extern int Widget_LanguageID;
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@end
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@implementation CropImageController{
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NSString * textCancel;
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NSString * textSelect;
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}
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- (instancetype)initWithImage:(UIImage *)originalImage delegate:(id)delegate {
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self = [super init];
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if (self) {
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_delegate = delegate;
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_originalImage = originalImage;
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}
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return self;
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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// Do any additional setup after loading the view.
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self.view.backgroundColor = [UIColor blackColor];
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self.automaticallyAdjustsScrollViewInsets = NO;
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[self initLlanguage];
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if(_mRATIO_X <= 0){
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_mRATIO_X = 1;
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}
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if(_mRATIO_Y <= 0){
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_mRATIO_Y = 1;
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}
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CGFloat heightN = ScreenWidth*_mRATIO_Y/_mRATIO_X;
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CGFloat height = (ScreenHeight - heightN)/2.0;
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_scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, height ,ScreenWidth, heightN)];
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_scrollView.bouncesZoom = YES;
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_scrollView.minimumZoomScale = 1;
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_scrollView.maximumZoomScale = 3;
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_scrollView.zoomScale = 1;
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_scrollView.delegate = self;
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_scrollView.layer.masksToBounds = NO;
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_scrollView.showsHorizontalScrollIndicator = NO;
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_scrollView.showsVerticalScrollIndicator = NO;
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_scrollView.layer.borderWidth = 1.5;
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_scrollView.layer.borderColor = [UIColor whiteColor].CGColor;
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if (_ovalClip) {
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_scrollView.layer.cornerRadius = ScreenWidth/2.0;
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}
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self.view.layer.masksToBounds = YES;
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if (_originalImage) {
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_imageView = [[UIImageView alloc] initWithImage:_originalImage];
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CGFloat img_width = ScreenWidth;
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CGFloat img_height = _originalImage.size.height * (img_width/_originalImage.size.width);
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CGFloat img_y= (img_height - self.view.bounds.size.width)/2.0;
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_imageView.frame = CGRectMake(0,0, img_width, img_height);
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_imageView.userInteractionEnabled = YES;
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[_scrollView addSubview:_imageView];
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_scrollView.contentSize = CGSizeMake(img_width, img_height);
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_scrollView.contentOffset = CGPointMake(0, img_y);
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[self.view addSubview:_scrollView];
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}
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if(_mCropFileName == nil || _mCropFileName.length == 0 ){
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_mCropFileName = @"hdl_headPicture";
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}
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[self userInterface];
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}
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- (void)viewWillAppear:(BOOL)animated {
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[super viewWillAppear:animated];
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[self.navigationController setNavigationBarHidden:YES];
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}
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- (void)viewWillDisappear:(BOOL)animated {
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[super viewWillDisappear:animated];
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[self.navigationController setNavigationBarHidden:NO];
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}
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- (void)userInterface {
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CGRect cropframe = _scrollView.frame;
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UIBezierPath * path = [UIBezierPath bezierPathWithRoundedRect:self.view.bounds cornerRadius:0];
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UIBezierPath * cropPath = [UIBezierPath bezierPathWithRoundedRect:cropframe cornerRadius:0];
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if (_ovalClip) {
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cropPath = [UIBezierPath bezierPathWithOvalInRect:cropframe];
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}
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[path appendPath:cropPath];
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CAShapeLayer * layer = [[CAShapeLayer alloc] init];
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layer.fillColor = [UIColor colorWithRed:.0 green:.0 blue:.0 alpha:0.5].CGColor;
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layer.fillRule=kCAFillRuleEvenOdd;
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layer.path = path.CGPath;
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[self.view.layer addSublayer:layer];
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UIView * view = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height - 46, self.view.bounds.size.width, 46)];
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view.backgroundColor = [UIColor colorWithRed:30/255.0 green:30/255.0 blue:30/255.0 alpha:0.7];
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[self.view addSubview:view];
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UIButton * canncelBtn = [UIButton buttonWithType:UIButtonTypeSystem];
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// [canncelBtn setBackgroundImage:[UIImage imageNamed:@"ic_widget_cancel"] forState:UIControlStateNormal];
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canncelBtn.frame = CGRectMake(0, 0, 60, 44);
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canncelBtn.titleLabel.font = [UIFont systemFontOfSize:16];
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// [canncelBtn setTitle: NSLocalizedString(@"action_cancel", @"") forState:UIControlStateNormal];
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[canncelBtn setTitle:textCancel forState:UIControlStateNormal];
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[canncelBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
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[canncelBtn addTarget:self action:@selector(cancelBtnClick) forControlEvents:UIControlEventTouchUpInside];
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[view addSubview:canncelBtn];
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UIButton * doneBtn = [UIButton buttonWithType:UIButtonTypeSystem];
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doneBtn.frame = CGRectMake([UIScreen mainScreen].bounds.size.width - 60, 0, 60, 44);
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// [doneBtn setBackgroundImage:[UIImage imageNamed:@"ic_widget_cancel"] forState:UIControlStateNormal];
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doneBtn.titleLabel.font = [UIFont systemFontOfSize:16];
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[doneBtn setTitle:textSelect forState:UIControlStateNormal];
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[doneBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
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[doneBtn addTarget:self action:@selector(doneBtnClick) forControlEvents:UIControlEventTouchUpInside];
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[view addSubview:doneBtn];
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// if(Widget_LanguageID == 1){
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// [canncelBtn setTitle: @"Cancel" forState:UIControlStateNormal];
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// [doneBtn setTitle: @"Save" forState:UIControlStateNormal];
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// }else{
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// [canncelBtn setTitle: @"取消" forState:UIControlStateNormal];
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// [doneBtn setTitle: @"保存" forState:UIControlStateNormal];
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// }
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}
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-(void)initLlanguage{
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NSString *languageName = [[[NSUserDefaults standardUserDefaults] objectForKey:@"AppleLanguages"] objectAtIndex:0];
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// 简体中文
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if ([languageName rangeOfString:@"zh-Hans"].location != NSNotFound) {
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textCancel = @"取消";
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textSelect = @"选取";
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}else{
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textCancel = @"Cancel";
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textSelect = @"Select";
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}
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}
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#pragma mark -- UIScrollViewDelegate
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- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
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return self.imageView;
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}
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- (void)scrollViewDidZoom:(UIScrollView *)scrollView {
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//调整位置
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[self centerContent];
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}
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- (void)centerContent {
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CGRect imageViewFrame = _imageView.frame;
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CGRect scrollBounds = CGRectMake(0, 0, ScreenWidth, ScreenWidth);
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if (imageViewFrame.size.height > scrollBounds.size.height) {
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imageViewFrame.origin.y = 0.0f;
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}else {
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imageViewFrame.origin.y = (scrollBounds.size.height - imageViewFrame.size.height) / 2.0;
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}
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if (imageViewFrame.size.width < scrollBounds.size.width) {
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imageViewFrame.origin.x = (scrollBounds.size.width - imageViewFrame.size.width) /2.0;
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}else {
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imageViewFrame.origin.x = 0.0f;
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}
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_imageView.frame = imageViewFrame;
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}
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- (void)cancelBtnClick{
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if (_delegate && [_delegate respondsToSelector:@selector(cropImageDidFinishedWithImage:bSuccess:)]) {
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[_delegate cropImageDidFinishedWithImage:nil bSuccess:NO];
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}
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// [self.navigationController popViewControllerAnimated:YES];
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[self dismissViewControllerAnimated:YES completion:nil];
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}
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- (UIImage *)cropImage {
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CGPoint offset = _scrollView.contentOffset;
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//图片缩放比例
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CGFloat zoom = _imageView.frame.size.width/_originalImage.size.width;
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//视网膜屏幕倍数相关
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zoom = zoom / [UIScreen mainScreen].scale;
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CGFloat width = _scrollView.frame.size.width;
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CGFloat height = _scrollView.frame.size.height;
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if (_imageView.frame.size.height < _scrollView.frame.size.height) {//太胖了,取中间部分
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offset = CGPointMake(offset.x + (width - _imageView.frame.size.height)/2.0, 0);
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width = height = _imageView.frame.size.height;
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}
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CGRect rec = CGRectMake(offset.x/zoom, offset.y/zoom,width/zoom,height/zoom);
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CGImageRef imageRef =CGImageCreateWithImageInRect([_originalImage CGImage],rec);
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UIImage * image = [[UIImage alloc]initWithCGImage:imageRef];
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CGImageRelease(imageRef);
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if (_ovalClip) {
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image = [UIImageCrop ovalClip:image];
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// image = zipNSDataWithImage
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}
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image = [self compressImageSize:image toByte:200*1024];
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return image;
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}
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-(NSString*)saveImage{
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NSString* _mCropPicturePath = @"";
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NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
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NSString *filePath = [[paths objectAtIndex:0]stringByAppendingPathComponent:
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[NSString stringWithFormat:@"%@%@", _mCropFileName,@".Png"]]; // 保存文件的名称
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BOOL result = [UIImagePNGRepresentation([self cropImage])writeToFile:filePath atomically:YES]; // 保存成功会返回YES
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if (result == YES) {
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_mCropPicturePath = filePath;
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NSLog(@"保存成功");
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}else{
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_mCropPicturePath = @"";
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}
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return _mCropPicturePath;
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}
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- (void)doneBtnClick{
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NSString* saveSuccessath = [self saveImage];
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BOOL saveSuccess = NO;
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if(![saveSuccessath isEqualToString:@""]){
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saveSuccess = YES;
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}
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if (_delegate && [_delegate respondsToSelector:@selector(cropImageDidFinishedWithImage:bSuccess:)]) {
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[_delegate cropImageDidFinishedWithImage:saveSuccessath bSuccess:saveSuccess];
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}
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// [self.navigationController popViewControllerAnimated:YES];
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[self dismissViewControllerAnimated:YES completion:nil];
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}
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#pragma mark - UIStatusBarStyle
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- (UIStatusBarStyle)preferredStatusBarStyle {
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return UIStatusBarStyleLightContent;
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}
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- (BOOL)prefersStatusBarHidden {
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return NO;
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}
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//-(NSData *)zipNSDataWithImage:(UIImage *)sourceImage{
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// //进行图像的画面质量压缩
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// NSData *data=UIImageJPEGRepresentation(sourceImage, 1.0);
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// if (data.length>100*1024) {
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// if (data.length>1024*1024) {//1M以及以上
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// data=UIImageJPEGRepresentation(sourceImage, 0.5);
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// if (data.length>1024*1024) {//1M以及以上
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// data=UIImageJPEGRepresentation(sourceImage, 0.5);
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// }
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// }else if (data.length>512*1024) {//0.5M-1M
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// data=UIImageJPEGRepresentation(sourceImage, 0.6);
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// }else if (data.length>200*1024) {
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// //0.25M-0.5M
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// data=UIImageJPEGRepresentation(sourceImage, 0.7);
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// }
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// }
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// return data;
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//}
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//图片压缩
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- (UIImage *)compressImageSize:(UIImage *)image toByte:(NSUInteger)maxLength {
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UIImage *resultImage = image;
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NSData *data = UIImageJPEGRepresentation(resultImage, 1);
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NSUInteger lastDataLength = 0;
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while (data.length > maxLength && data.length != lastDataLength) {
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lastDataLength = data.length;
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CGFloat ratio = (CGFloat)maxLength / data.length;
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CGSize size = CGSizeMake((NSUInteger)(resultImage.size.width * sqrtf(ratio)),
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(NSUInteger)(resultImage.size.height * sqrtf(ratio))); // Use NSUInteger to prevent white blank
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UIGraphicsBeginImageContext(size);
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// Use image to draw (drawInRect:), image is larger but more compression time
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// Use result image to draw, image is smaller but less compression time
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[resultImage drawInRect:CGRectMake(0, 0, size.width, size.height)];
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resultImage = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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data = UIImageJPEGRepresentation(resultImage, 1);
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}
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return resultImage;
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}
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@end
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