//
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// JHWaveChart.m
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// JHChartDemo
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//
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// Created by cjatech-简豪 on 16/4/13.
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// Copyright © 2016年 JH. All rights reserved.
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//
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#import "JHWaveChart.h"
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@interface JHWaveChart()
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@property (nonatomic,strong) NSArray * yLineDataArr;
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@property (assign , nonatomic) JHWaveChartType waveChartType ;
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@property (assign , nonatomic) CGFloat perXLength ;
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@property (assign , nonatomic) CGFloat xLength ;
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@property (assign , nonatomic) CGFloat yLength ;
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@property (assign , nonatomic) CGPoint originPoint ;
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@end
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@implementation JHWaveChart
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-(instancetype)initWithFrame:(CGRect)frame andType:(JHWaveChartType)waveChartType{
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if (self = [super initWithFrame:frame]) {
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self.backgroundColor = [UIColor whiteColor];
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_waveChartType = waveChartType;
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_xLineDataArr = @[@0,@1,@2,@3,@4,@5,@6,@7];
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_xAndYLineColor = [UIColor darkGrayColor];
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self.contentInsets = UIEdgeInsetsMake(10, 10, 10, 10);
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}
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return self;
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}
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- (void)countPerXandPerYLength{
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_xLength = CGRectGetWidth(self.frame) - self.contentInsets.left - self.contentInsets.right;
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_yLength = CGRectGetHeight(self.frame) - self.contentInsets.top - self.contentInsets.bottom;
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if (_xLineDataArr.count) {
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_perXLength = _xLength/(_xLineDataArr.count-1);
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}
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switch (_waveChartType) {
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case JHWaveChartUpType:
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{
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_originPoint = P_M(self.contentInsets.left, CGRectGetHeight(self.frame) - self.contentInsets.bottom);
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}
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break;
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case JHWaveChartUpAndDownType:
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{
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}
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break;
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default:
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break;
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}
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}
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- (void)drawRect:(CGRect)rect {
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CGContextRef context = UIGraphicsGetCurrentContext();
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[self countPerXandPerYLength];
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if (_xLineDataArr.count) {
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/* 绘制X轴 */
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[self drawXLineWithContext:context];
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}
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}
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/**
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* 绘制X轴
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*
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*/
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- (void)drawXLineWithContext:(CGContextRef)contex{
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[self drawLineWithContext:contex andStarPoint:P_M(self.contentInsets.left, CGRectGetHeight(self.frame)-self.contentInsets.bottom) andEndPoint:P_M(CGRectGetWidth(self.frame)-self.contentInsets.right, CGRectGetHeight(self.frame)-self.contentInsets.bottom) andIsDottedLine:NO andColor:_xAndYLineColor];
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for (NSInteger i =0 ; i<_xLineDataArr.count ; i++) {
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[self drawLineWithContext:contex andStarPoint:P_M(i*_perXLength, _originPoint.y) andEndPoint:P_M(i*_perXLength, _originPoint.y-3) andIsDottedLine:NO andColor:_xAndYLineColor];
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CGFloat len = [self getTextWithWhenDrawWithText:_xLineDataArr[i]];
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[self drawText:_xLineDataArr[i] andContext:contex atPoint:P_M(i*_perXLength-len/2+_originPoint.x, _originPoint.y+5) WithColor:_xAndYLineColor andFontSize:8];
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}
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}
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-(void)setValueDataArr:(NSArray *)valueDataArr{
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_valueDataArr = valueDataArr;
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[self setNeedsDisplay];
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}
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@end
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