duoshoubang/FirstLink/Compoments/社区模块/晒单发布/Cell&View/FKCirclePubl...

//
//  FKCirclePublicImageCell.m
//  FirstLink
//
//  Created by ascii on 16/6/8.
//  Copyright © 2016年 FirstLink. All rights reserved.
//

#import "FKCirclePublicImageCell.h"
#import "FKCirclePublicImageItem.h"
#import <SDWebImage/UIImageView+WebCache.h>

#import "FLStringHelper.h"

@interface FKCirclePublicImageCell ()

@property (nonatomic, strong) UIImageView *displayImageView;

@property (nonatomic, strong) UIButton    *deleteButton;
@property (nonatomic, strong) UIButton    *textButton;
@property (nonatomic, strong) UIButton    *clipButton;

@end

@implementation FKCirclePublicImageCell

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
    if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
        self.selectionStyle = UITableViewCellSelectionStyleNone;
        
        [self.contentView addSubview:self.displayImageView];
        
        self.deleteButton = [self makeButtonWitImage:@"CircleImageDeleteIcon" tag:0];
        self.textButton   = [self makeButtonWitImage:@"CircleImageTextIcon" tag:1];
        self.clipButton   = [self makeButtonWitImage:@"CircleImageClipIcon" tag:2];
        
        [self.displayImageView addSubview:self.deleteButton];
        [self.displayImageView addSubview:self.textButton];
        [self.displayImageView addSubview:self.clipButton];
    }
    return self;
}

#pragma mark - API

- (void)configWith:(id)item {
    if ([item isKindOfClass:[FKCirclePublicImageItem class]]) {
        FKCirclePublicImageItem *imageItem = (FKCirclePublicImageItem*)item;
        if (imageItem.displayImage) {
            self.displayImageView.image = imageItem.displayImage;
        } else if (imageItem.photoURL.length > 0) {
            [self.displayImageView sd_setImageWithURL:[NSURL URLWithString:imageItem.photoURL]
                                         completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
                                             if (!error) {
                                                 imageItem.sourceImage  = image;
                                                 imageItem.displayImage = image;
                                             }
                                         }];
        }
        [self.displayImageView mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(self.contentView).offset(0);
            make.top.equalTo(self.contentView).offset(0);
            make.right.equalTo(self.contentView).offset(0);
            make.height.mas_equalTo([FKCirclePublicImageCell imageHeightWith:imageItem]);
        }];
        
        // layout three button
        [self.deleteButton mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.right.equalTo(self.displayImageView).offset(-15);
            make.bottom.equalTo(self.displayImageView).offset(-15);
            make.size.mas_equalTo(CGSizeMake(28, 28));
        }];
        [self.textButton mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.right.equalTo(self.deleteButton.mas_left).offset(-10);
            make.centerY.equalTo(self.deleteButton);
            make.size.mas_equalTo(CGSizeMake(28, 28));
        }];
        [self.clipButton mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.right.equalTo(self.textButton.mas_left).offset(-10);
            make.centerY.equalTo(self.deleteButton);
            make.size.mas_equalTo(CGSizeMake(28, 28));
        }];
        
        // layout textview
        if ([imageItem isNeedDisplay]) {
            [self.contentView addSubview:self.textView];
            self.textView.placeholder = imageItem.palceholder;
            self.textView.placeholderColor = UIColorFromRGB(0x999999);
            self.textView.text = imageItem.imageDesc;
            
            [self.textView mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.left.equalTo(self.contentView).offset(12);
                make.bottom.equalTo(self.contentView).offset(-6);
                make.right.equalTo(self.contentView).offset(-12);
//                make.height.mas_equalTo([FKCirclePublicImageCell textHeight:imageItem]);
            }];
        } else {
            [self.textView removeFromSuperview];
        }
    }
}

#pragma mark - Method

+ (CGFloat)heightWith:(id)item {
    if ([item isKindOfClass:[FKCirclePublicImageItem class]]) {
        FKCirclePublicImageItem *imageItem = (FKCirclePublicImageItem*)item;
        CGFloat textHeight = [FKCirclePublicImageCell textHeight:imageItem];
        return ([FKCirclePublicImageCell imageHeightWith:imageItem] + (textHeight > 0 ? (15 + textHeight) : 0));
    }
    return 80;
}

+ (CGFloat)imageHeightWith:(FKCirclePublicImageItem *)imageItem {
    if (!imageItem.displayImage) {
        return UISCREENWIDTH;
    }
    return ceilf(UISCREENWIDTH * imageItem.displayImage.size.height/imageItem.displayImage.size.width);
}

+ (CGFloat)textHeight:(FKCirclePublicImageItem *)imageItem {
    if ([imageItem isNeedDisplay]) {
        UITextView *textView = [[UITextView alloc] init];
        textView.font = [UIFont systemFontOfSize:14];
        textView.text = imageItem.imageDesc;
        
        CGFloat width = (UISCREENWIDTH - 2 * 12);
        CGSize size = [textView sizeThatFits:CGSizeMake(width, MAXFLOAT)];
        return MAX(38, ceilf(size.height));
    }
    return 0;
}

#pragma mark - Action

- (IBAction)clickButtonAction:(UIButton *)sender {
    if (self.clickCallback) {
        self.clickCallback((FKCirclePublicImageCellButton)sender.tag, [NSIndexPath indexPathForRow:0 inSection:self.tag]);
    }
}

- (void)setTag:(NSInteger)tag {
    [super setTag:tag];
    
    self.textView.tag     = tag;
}

#pragma mark - Property

- (UIImageView *)displayImageView {
    if (!_displayImageView) {
        _displayImageView = [UIImageView new];
        _displayImageView.userInteractionEnabled = YES;
        _displayImageView.contentMode = UIViewContentModeScaleAspectFit;
    }
    return _displayImageView;
}

- (UIPlaceHolderTextView *)textView {
    if (!_textView) {
        _textView = [[UIPlaceHolderTextView alloc] init];
        _textView.font = [UIFont systemFontOfSize:14];
        _textView.textColor = UIColorFromRGB(0x666666);
        _textView.scrollEnabled = NO;
        _textView.returnKeyType = UIReturnKeyDone;
    }
    return _textView;
}

- (UIButton *)makeButtonWitImage:(NSString *)imgName tag:(NSInteger)tag {
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.tag = tag;
    [button setImage:[UIImage imageNamed:imgName] forState:UIControlStateNormal];
    
    [button addTarget:self action:@selector(clickButtonAction:) forControlEvents:UIControlEventTouchUpInside];
    return button;
}

@end