zuoyebang/tongxin/ThirdPartyLib/FBYLineGraph/FBYLineGraphView.m

//
//  FBYLineGraphView.m
//  FBYDataDisplay-iOS
//
//  Created by fby on 2018/1/18.
//  Copyright © 2018年 FBYDataDisplay-iOS. All rights reserved.
//

#import "FBYLineGraphView.h"
#import "FBYLineGraphContentView.h"

/**
 *  Y轴刻度标签 与 Y轴 之间 空隙
 */
#define HORIZON_YMARKLAB_YAXISLINE 10.f

/**
 *  Y轴刻度标签  宽度
 */
#define YMARKLAB_WIDTH 25.f

/**
 *  Y轴刻度标签  高度
 */
#define YMARKLAB_HEIGHT 16.f
/**
 *  X轴刻度标签  宽度
 */

#define XMARKLAB_WIDTH 40.f

/**
 *  X轴刻度标签  高度
 */
#define XMARKLAB_HEIGHT 16.f

/**
 *  最上边的Y轴刻度标签距离顶部的 距离
 */
#define YMARKLAB_TO_TOP 12.f

@interface FBYLineGraphView() {
    
    // 数据的 x轴坐标
    NSMutableArray *xMarkValues;
    // 最大值
    NSInteger xMarkMaxValue;
    // 最小值
    NSInteger xMarkMinValue;
    // 值数组
    NSMutableArray *valueArray;
    
}
/// 类型 0: 时间(24小时)  1:日期(7天)
@property (nonatomic, assign) int type;

/**
 *  表名标签
 */
@property (nonatomic, strong) UILabel *titleLab;

/**
 *  显示折线图的可滑动视图
 */
@property (nonatomic, strong) UIScrollView *scrollView;

/**
 *  折线图
 */
@property (nonatomic, strong) FBYLineGraphContentView *lineGraphContentView;

/**
 *  Y轴刻度标签title
 */
@property (nonatomic, strong) NSArray *yMarkTitles;


/**
 *  X轴坐标 和 对应的折线图点的值
 */
@property (nonatomic, strong) NSArray *xMarkTitlesAndValues;




/// X轴的 刻度数组 (根据方法需要修改成 24小时的 还是 日期制的)
@property (nonatomic, strong) NSMutableArray *xMarkScaleArr;


@end

@implementation FBYLineGraphView

- (void)setXScaleMarkLEN:(CGFloat)xScaleMarkLEN {
    _xScaleMarkLEN = xScaleMarkLEN;
}

- (void)setYMarkTitles:(NSArray *)yMarkTitles {
    _yMarkTitles = yMarkTitles;
}

- (void)setMaxValue:(CGFloat)maxValue {
    _maxValue = maxValue;
    
}
- (void)setMinValue:(CGFloat)minValue {
    _minValue = minValue;
}

- (void)setTitle:(NSString *)title {
    _title = title;
    
}

/**
 *  设置折线图显示的数据和对应X坐标轴刻度标签 (时间戳 24小时制)
 *  @param day 哪一天
 *  @param xMarkTitlesTimeAndValues 折线图显示的数据
 *  @param titleKey             标签（如:1585817374 时间戳）
 *  @param valueKey             数据 (如:80)
 */
- (void)setXMarkWithDay:(NSString*)day TitlesTimeAndValues:(NSArray *)xMarkTitlesTimeAndValues titleKey:(NSString *)titleKey valueKey:(NSString *)valueKey{
    
    _xMarkTitlesAndValues = xMarkTitlesTimeAndValues;
    
    xMarkValues = [NSMutableArray array];
    valueArray = [NSMutableArray array];
    
    for (NSDictionary *dic in xMarkTitlesTimeAndValues) {
        
        [xMarkValues addObject:[dic objectForKey:titleKey]];
        [valueArray addObject:[dic objectForKey:valueKey]];
    }
    _xMarkScaleArr = [NSMutableArray array];
    
    if(YES){
        //等距模式
        NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];
        [dateFormatter setDateFormat:@"yyyy-MM-dd"];
        
        //日期的零点
        xMarkMinValue = [dateFormatter dateFromString:day].timeIntervalSince1970;
        //日期后一天的零点
        xMarkMaxValue = [dateFormatter dateFromString:day].timeIntervalSince1970 + 60*60*24;
        
        
        for (int i = 0; i < 5; i++) {
            //坐标显示的刻度
            NSString * xMark = [self getDateFormatWithStr:@"yyyy-MM-dd-H" timeInterval: xMarkMinValue + (60*60*6*i)];
            NSString *Y_Str = [xMark componentsSeparatedByString:@"-"].lastObject;
            if(i > 0 && [Y_Str isEqualToString:@"0"]){
                [_xMarkScaleArr addObject:@"24"];
            }else{
                [_xMarkScaleArr addObject:Y_Str];
            }
            
        }
        
    }else{
        
        // 跨度是多少个小时
        long numHour = 24;
        //日期的零点
        xMarkMinValue = [self getDateFormatWithStr:@"yyyy-MM-dd" WithDateStr:day];
        //日期后一天的零点
        xMarkMaxValue = xMarkMinValue + 60*60*24;
        
        if(_xMarkTitlesAndValues.count > 0){
            //自适应模式
            NSNumber *startTime = [xMarkValues firstObject];
            NSNumber *endTime = [xMarkValues lastObject];
            NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];
            [dateFormatter setDateFormat:@"yyyy-MM-dd-HH"];
            //起始的整点时间 (如果不是偶数点的,需要前面补足一个偶数点)
            NSString *startIntegerHour = [self getDateFormatWithStr:@"yyyy-MM-dd-HH" timeInterval: startTime.integerValue];
            NSString *tempStartHour = [startIntegerHour componentsSeparatedByString:@"-"].lastObject;
            if (([tempStartHour intValue] % 2) != 0){
                startIntegerHour = [self getDateFormatWithStr:@"yyyy-MM-dd-HH" timeInterval: startTime.integerValue-60*60];
            }
            xMarkMinValue = [dateFormatter dateFromString:startIntegerHour].timeIntervalSince1970;
            //终止的整点时间 (因为大部分都是几点多的情况,需要补足,补足后如果不是偶数点的,需要再补足一个偶数点,这个不可能超过24点的)
            NSString *endIntegerHour = [self getDateFormatWithStr:@"yyyy-MM-dd-HH" timeInterval: endTime.integerValue+60*60];
            NSString *tempEndHour = [endIntegerHour componentsSeparatedByString:@"-"].lastObject;
            if ( (([tempEndHour intValue] % 2) != 0)
                && ![tempEndHour isEqualToString:@"00"]){
                endIntegerHour = [self getDateFormatWithStr:@"yyyy-MM-dd-HH" timeInterval: endTime.integerValue+60*60*2];
            }
            xMarkMaxValue = [dateFormatter dateFromString:endIntegerHour].timeIntervalSince1970;
            
            
            numHour = (xMarkMaxValue - xMarkMinValue) / (60*60);
            if (numHour < 1) {
                numHour = 1;
                xMarkMaxValue = xMarkMinValue + 60*60;
            }
        }
        
        // 每个跨度的间隔时间
        NSInteger PerTime = 60*60;
        
        for (int i = 0; i < numHour+1; i++) {
            //坐标显示的刻度
            NSString * xMark = [self getDateFormatWithStr:@"yyyy-MM-dd-H" timeInterval: xMarkMinValue + (PerTime*i)];
            NSString *Y_Str = [xMark componentsSeparatedByString:@"-"].lastObject;
            if(i > 0 && [Y_Str isEqualToString:@"0"]){
                [_xMarkScaleArr addObject:@"24"];
            }else{
                [_xMarkScaleArr addObject:Y_Str];
            }
            
        }
        //多少个X轴的分割线
        int count = 6;
        if(_xMarkScaleArr.count > count + 2){
            _xMarkScaleArr = [self setArrWithArray:_xMarkScaleArr AndWantCount:count];
        }
    }
    
    
    
    
    _xScaleMarkLEN = (self.frame.size.width - HORIZON_YMARKLAB_YAXISLINE - YMARKLAB_WIDTH - XMARKLAB_WIDTH / 2.0) / (_xMarkScaleArr.count - 1);
}
//抽离成想要的个数
-(NSMutableArray*)setArrWithArray:(NSMutableArray*)tempArr AndWantCount:(int)count{
    NSInteger tempCount = (tempArr.count - 2) % (count-2);
    for (int i = 1 ; i < tempArr.count-1; i++) {
        if((i%(count-2)) != 0){
            tempArr[i] = @"";
        }
    }
    return tempArr;
    
}

/**
*  设置折线图显示的数据和对应X坐标轴刻度标签 (日期 eg: 2020-04-02 日期制)
*
*  @param xMarkTitlesFDayAndValues 折线图显示的数据
*  @param titleKey             标签（日期 eg: 2020-04-02）
*  @param valueKey             数据 (如:80)
*/
- (void)setXMarkTitlesDayAndValues:(NSArray *)xMarkTitlesFDayAndValues titleKey:(NSString *)titleKey valueKey:(NSString *)valueKey{
    //归整成 当天的 00:00
    NSMutableArray *arr = [NSMutableArray array];
    NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd"];
    for (NSDictionary *item in xMarkTitlesFDayAndValues)
    {
        NSNumber *timeNumber = item[titleKey];
        NSString *dayStr = [self getDateFormatWithStr:@"yyyy-MM-dd" date:[NSDate dateWithTimeIntervalSince1970:timeNumber.doubleValue]];
        NSNumber *newTimeNumber = @([dateFormatter dateFromString:dayStr].timeIntervalSince1970);
        NSMutableDictionary *tempDic = [NSMutableDictionary dictionaryWithDictionary:item];
        [tempDic setValue:newTimeNumber forKey:titleKey];
        [arr addObject:tempDic];
    }
    
    _xMarkTitlesAndValues = arr;
    
    xMarkValues = [NSMutableArray array];
    valueArray = [NSMutableArray array];
    
    //其余没数据的天数补0
    //是为 日期(7天) 格式
    _type = 1;
    
    
    int howManyDays = 7;
    
    _xMarkScaleArr = [NSMutableArray array];
    for (int i = 0; i < howManyDays; i++)
    {
        NSString *dayStr;
        NSString *dayStr1;
        if(i == howManyDays-1){
            //今天
            dayStr = [self getDateFormatWithStr:@"yyyy-MM-dd" date:[NSDate date]];
           // [_xMarkScaleArr addObject:[dayStr componentsSeparatedByString:@"-"].lastObject];
            dayStr1 = [self getDateFormatWithStr:@"MM.dd" date:[NSDate date]];
            [_xMarkScaleArr addObject:@"今天"];
            
            xMarkMaxValue = [dateFormatter dateFromString:dayStr].timeIntervalSince1970;
        }
        else
        {
            //几天前
            dayStr = [self getDateFormatWithStr:@"yyyy-MM-dd" date: [self ddpGetExpectTimestamp:0 month:0 day:i+1-howManyDays]];
            //[_xMarkScaleArr addObject:[dayStr componentsSeparatedByString:@"-"].lastObject];
            dayStr1 = [self getDateFormatWithStr:@"MM.dd" date: [self ddpGetExpectTimestamp:0 month:0 day:i+1-howManyDays]];
            [_xMarkScaleArr addObject:dayStr1];
            
            if(i==0){
                xMarkMinValue = [dateFormatter dateFromString:dayStr].timeIntervalSince1970;
            }
        }
        NSNumber *tempTimeStamp = @([dateFormatter dateFromString:dayStr].timeIntervalSince1970);
        NSNumber *tempData = @(0);
        for (NSDictionary *dic in _xMarkTitlesAndValues) {
            if ([[dic objectForKey:titleKey] integerValue] == tempTimeStamp.integerValue){
                tempData = [dic objectForKey:valueKey];
            }
        }
        
        [xMarkValues addObject:tempTimeStamp];
        [valueArray addObject:tempData];
        
    }
    NSLog(@"_xMarkScaleArr: %@",_xMarkScaleArr);
    
    
}



#pragma mark 绘图
- (void)mapping {
    
    static CGFloat topToContainView = 0.f;
    static CGFloat bottomToContainView = 0.f;
    if (self.title) {
        
        self.titleLab = [[UILabel alloc] initWithFrame:CGRectMake(0, 5, CGRectGetWidth(self.frame), 20)];
        self.titleLab.text = self.title;
        self.titleLab.textColor = [UIColor blackColor];
        self.titleLab.font = [UIFont systemFontOfSize:15];
        self.titleLab.textAlignment = NSTextAlignmentCenter;
        [self addSubview:self.titleLab];
        topToContainView = 25;
    }
    if(self.X_UnintTitle){
        bottomToContainView = 21;
        UILabel *unintLabel = [[UILabel alloc] initWithFrame:CGRectMake(0,self.frame.size.height - bottomToContainView, CGRectGetWidth(self.frame), bottomToContainView)];
        unintLabel.text = _X_UnintTitle;
        unintLabel.textColor = [UIColor colorWithRed:102.0f/255.0f green:102.0f/255.0f blue:102.0f/255.0f alpha:1.0f];
        unintLabel.font = [UIFont systemFontOfSize:12];
        unintLabel.textAlignment = NSTextAlignmentCenter;
        [self addSubview:unintLabel];
        
    }
    
    
    if (!self.xMarkTitlesAndValues) {
        
        xMarkValues = @[@1,@2,@3,@4,@5].mutableCopy;
        valueArray = @[@2,@2,@2,@2,@2].mutableCopy;
        
    }
    
    
    if (!self.yMarkTitles) {
        if(_Ycount == 0){
            _Ycount = 6;
        }
        NSMutableArray *tempYMarkTitles = [NSMutableArray array];
        CGFloat Yunint =  (_maxValue - _minValue) / (_Ycount-1);
        for (int i = 0; i < _Ycount; i++) {
            [tempYMarkTitles addObject:[NSString stringWithFormat:@"%@",[NSNumber numberWithFloat:_minValue + (Yunint * i)]]];
        }
       // [tempYMarkTitles addObject:@""];
    //    LineGraphView.yMarkTitles = @[@"0",@"20",@"40",@"60",@"80",@"100"]; // Y轴刻度标签
        _yMarkTitles = [tempYMarkTitles copy];
//        if(tempYMarkTitles.count == 0){
//            self.yMarkTitles = @[@0,@1,@2,@3,@4,@5];
//        }
        
    }
    
    
    if (self.maxValue == 0) {
        self.maxValue = 5;
        
    }
    
    self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, topToContainView, self.frame.size.width,self.frame.size.height - topToContainView-bottomToContainView)];
    [self.scrollView setShowsHorizontalScrollIndicator:NO];
    [self.scrollView setShowsVerticalScrollIndicator:NO];
    [self addSubview:self.scrollView];
    
    self.lineGraphContentView = [[FBYLineGraphContentView alloc] initWithFrame:self.scrollView.bounds];
    self.lineGraphContentView.chartType = self.type;
    self.lineGraphContentView.MainColor = self.MainColor;
    self.lineGraphContentView.XYAxisColor = self.XYAxisColor;
    self.lineGraphContentView.yMarkTitles = self.yMarkTitles;
    self.lineGraphContentView.minValue = self.minValue;
    self.lineGraphContentView.maxValue = self.maxValue;
    self.lineGraphContentView.upperValue = self.upperValue;
    self.lineGraphContentView.lowerValue = self.lowerValue;
    self.lineGraphContentView.xMarkScaleArr = self.xMarkScaleArr;
    self.lineGraphContentView.xMarkValues = xMarkValues;
    self.lineGraphContentView.xMarkmaxValue = xMarkMaxValue;
    self.lineGraphContentView.xMarkminValue = xMarkMinValue;
    self.lineGraphContentView.xScaleMarkLEN = self.xScaleMarkLEN;
    self.lineGraphContentView.valueArray = valueArray;
    self.lineGraphContentView.maxValue = self.maxValue;
    
    [self.scrollView addSubview:self.lineGraphContentView];
    
    [self.lineGraphContentView mapping];
    
    self.scrollView.contentSize = self.lineGraphContentView.bounds.size;
    
}

#pragma mark 更新数据
- (void)reloadDatas {
    [self.lineGraphContentView reloadDatas];
}

- (NSTimeInterval)getDateFormatWithStr:(NSString *)dateFormat WithDateStr:(NSString*)dayStr{
    NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:dateFormat];
    return [dateFormatter dateFromString:dayStr].timeIntervalSince1970;
}

- (NSString *)getDateFormatWithStr:(NSString *)dateFormat timeInterval:(NSTimeInterval)timeInterval{
    return [self getDateFormatWithStr:dateFormat date:[NSDate dateWithTimeIntervalSince1970:timeInterval]];
}
- (NSString *)getDateFormatWithStr:(NSString *)dateFormat date:(NSDate *)date{
    NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:dateFormat];
    return [dateFormatter stringFromDate:date];
}
///< 获取当前时间的: 前一周(day:-7)丶前一个月(month:-30)丶前一年(year:-1)的时间 NSDate
- (NSDate *)ddpGetExpectTimestamp:(NSInteger)year month:(NSUInteger)month day:(NSUInteger)day {
 
    ///< 当前时间
    NSDate *currentdata = [NSDate date];
 
    ///< NSCalendar -- 日历类，它提供了大部分的日期计算接口，并且允许您在NSDate和NSDateComponents之间转换
    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    
    /*
    ///<  NSDateComponents：时间容器，一个包含了详细的年月日时分秒的容器。
    ///< 下例：获取指定日期的年，月，日
    NSDateComponents *comps = nil;
    comps = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:currentdata];
    NSLog(@"年 year = %ld",comps.year);
    NSLog(@"月 month = %ld",comps.month);
    NSLog(@"日 day = %ld",comps.day);*/
 
    
    NSDateComponents *datecomps = [[NSDateComponents alloc] init];
    [datecomps setYear:year?:0];
    [datecomps setMonth:month?:0];
    [datecomps setDay:day?:0];
    
    ///< dateByAddingComponents: 在参数date基础上，增加一个NSDateComponents类型的时间增量
    NSDate *calculatedate = [calendar dateByAddingComponents:datecomps toDate:currentdata options:0];
    
//    ///< 打印推算时间
//    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
//    [formatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
//    NSString *calculateStr = [formatter stringFromDate:calculatedate];
//
//    xLog(@"calculateStr 推算时间: %@",calculateStr );
//
//    ///< 预期的推算时间
//    NSString *result = [NSString stringWithFormat:@"%ld", (long)[calculatedate timeIntervalSince1970]];
    
    return calculatedate;
}
@end