//
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// HDLOnWaveSeekbar.m
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// HDL_Widget_iOS
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//
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// Created by 陈嘉乐 on 2020/7/2.
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// Copyright © 2020 JLChen. All rights reserved.
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//
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#import "HDLOnWaveSeekbar.h"
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#import "HDLUtlisXM.h"
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//#define DEFAULT_WAVE_COLOR HEXCOLOR(0xFD692E)
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//#define DEFAULT_WAVE_END_COLOR HEXCOLOR(0xFB3140)
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@interface HDLOnWaveSeekbar ()
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/**
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是否正在移动
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*/
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@property (nonatomic, assign) BOOL bTouchMove;
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/**
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进度单位符号
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*/
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@property (nonatomic, strong) NSString *mProgressBarUnitSring;
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/**
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最小值
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*/
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@property (nonatomic, assign) float mMinValue;
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/**
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最大值
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*/
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@property (nonatomic, assign) float mMaxValue;
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/**
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进度渐变颜色数组
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*/
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@property (nonatomic, strong) NSArray *mWaveProgressBarColors;
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/**
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进度渐变颜色数组
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*/
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@property (nonatomic, strong) NSArray *mOfflineProgressBarColors;
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/**
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是否离线
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*/
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@property (nonatomic, assign) BOOL isOffline;
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/**
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是否离线
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*/
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@property (nonatomic, assign) BOOL isShowThumbBtn;
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@end
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@implementation HDLOnWaveSeekbar{
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int _mMoveCount;
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CGPoint _mCenterPoint; //圆心坐标
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bool _bIsInWaveProgress;
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CGFloat _mWaveHeight;
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CGFloat _mWaveWidth;
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CGFloat _mWaveStartX;
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CGFloat _mWaveEndX;
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CGFloat _mThumbBtnStartX;
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CGFloat _mThumbBtnEndX;
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float _mPercent;
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CGFloat _mCurtainY;
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}
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-(instancetype)initWithFrame:(CGRect)frame{
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self = [super initWithFrame:frame];
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if (self) {
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_isClickable = YES;
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_mMoveCount = 0;
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_mProgress = 0;
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_mPercent = 0;
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_mMaxValue = 100.0f;
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_mMinValue = 0.0f;
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//圆角
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_mCornerRadius = 20;
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//进度文字
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_mProgressTextColor = [UIColor blackColor];
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_mProgressTextSize = 15;
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_mProgressBarUnitSring = @"%";
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_isProgressTextShow = YES;
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//拖动按钮
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_thumbBtnColor = [UIColor whiteColor];
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_thumbBtnHeight = 10;
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_isShowThumbBtn = YES;
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//颜色配置
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_mWaveBackgroundColor = HEXCOLOR(0xF2F3F7);
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[self setProgressBarColor:HEXCOLOR(0xFC9C04)];
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[self setOfflineProgressBarColor:HEXCOLOR(0xDFE1E6)];
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[self refreshFrame];
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self.backgroundColor = [UIColor clearColor];
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}
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return self;
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}
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/**
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刷新布局，更新关键值
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*/
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-(void)refreshFrame{
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_mCenterPoint = CGPointMake(self.frame.size.width/2, self.frame.size.height/2);
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_mWaveHeight = self.frame.size.height;
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_mWaveWidth = self.frame.size.width;
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_mWaveStartX = 0;
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_mWaveEndX = _mWaveWidth;
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_mThumbBtnStartX = _mWaveWidth * 3 / 8;
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_mThumbBtnEndX = _mWaveWidth * 5 / 8;
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}
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///**
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// 刷新布局，更新关键值
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//
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// */
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//-(void)onWaveSizeChange{
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// _mWaveHeight = self.frame.size.height;
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// _mWaveWidth = self.frame.size.width;
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// _mWaveStartX = 0;
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// _mWaveEndX = _mWaveWidth;
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// _mThumbBtnStartX = _mWaveWidth * 3 / 8;
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// _mThumbBtnEndX = _mWaveWidth * 5 / 8;
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//}
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#pragma mark drawRect 绘制图形
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-(void)drawRect:(CGRect)rect{
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[super drawRect:rect];
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CGContextRef ctx = UIGraphicsGetCurrentContext();
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//将当前图形状态推入堆栈
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CGContextSaveGState(ctx);
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// //*********绘制边框背景*********
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// [self drawBorderPath:ctx];
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//*********绘制动态的进度条*********
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[self drawProgressBar:ctx];
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//*********绘制拖动按钮*********
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[self drawThumbBtn:ctx];
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//*********绘制显示进度值文字*********
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[self drawProgressText:ctx];
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//把堆栈顶部的状态弹出
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CGContextRestoreGState(ctx);
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}
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/**
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绘制进度条
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@param ctx 画布
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*/
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-(void)drawProgressBar:(CGContextRef)ctx{
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//*******绘制剪裁限制显示区域*********
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CGRect drawRect2 = CGRectMake(0, 0 , _mWaveWidth, _mWaveHeight );
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UIBezierPath *path2 = [UIBezierPath bezierPathWithRoundedRect:drawRect2 cornerRadius:_mCornerRadius];;
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CGContextAddPath(ctx, path2.CGPath);
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// 剪裁路径
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CGContextClip(ctx);
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//*******绘制剪裁限制显示区域*********
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//绘制背景颜色设置
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[_mWaveBackgroundColor set];
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CGContextFillRect(ctx, drawRect2);
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//绘制进度矩形
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CGFloat y = _mWaveHeight - _mPercent * _mWaveHeight;
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_mCurtainY = y;
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CGContextBeginPath( ctx );
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//起点-终点
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CGPoint pointsRect[4] = {CGPointMake(_mWaveStartX, _mCurtainY),CGPointMake(_mWaveStartX, _mWaveHeight), CGPointMake(_mWaveEndX,_mWaveHeight),CGPointMake(_mWaveEndX, _mCurtainY)};
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CGContextAddLines(ctx, pointsRect, 4);
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//绘制渐变颜色
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[self drawArcWithGradient:ctx rect:drawRect2];
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}
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/**
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绘制拖动按钮
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@param ctx 画布
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*/
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-(void)drawThumbBtn:(CGContextRef)ctx{
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if(_isShowThumbBtn){
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//画线
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CGContextSetLineWidth(ctx, _thumbBtnHeight);
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CGContextSetLineCap(ctx, kCGLineCapRound);
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CGContextSetStrokeColorWithColor(ctx,_thumbBtnColor.CGColor);
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CGPoint aPoints[2];//坐标点
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aPoints[0] =CGPointMake(_mThumbBtnStartX, _mCurtainY);//坐标1
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aPoints[1] =CGPointMake(_mThumbBtnEndX, _mCurtainY);//坐标2
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//points[]坐标数组，和count大小
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CGContextAddLines(ctx, aPoints, 2);//添加线
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CGContextStrokePath(ctx);
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}
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}
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/**
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绘制进度显示值文字
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@param ctx 画布
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*/
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-(void)drawProgressText:(CGContextRef)ctx{
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if(_isProgressTextShow){
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if(_mPercent > 0.6){
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_mProgressTextColor = [UIColor whiteColor];
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}else{
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_mProgressTextColor = [UIColor blackColor];
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}
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[self drawString:[NSString stringWithFormat:@"%d%@", _mProgress, _mProgressBarUnitSring] outsidePoint:_mCenterPoint];
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}
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}
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/**
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drawString 现在当前进度值
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@param mText 显示文本
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@param outsidePoint 坐标
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*/
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- (void) drawString:(NSString *)mText outsidePoint:(CGPoint)outsidePoint{
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NSMutableParagraphStyle *paragraph = [[NSMutableParagraphStyle alloc] init];
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paragraph.alignment = NSTextAlignmentCenter;
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NSDictionary *dic = @{NSFontAttributeName : [UIFont systemFontOfSize:_mProgressTextSize],
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NSForegroundColorAttributeName : _mProgressTextColor,
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NSParagraphStyleAttributeName : paragraph
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};
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// CGRect textRect = CGRectMake(outsidePoint.x, outsidePoint.y, 80, 20);
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// [mText drawInRect:textRect withAttributes:dic];
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//2019-08-15 修改文字绘制方法，最终实现文本居中效果
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CGSize textSize = [mText sizeWithAttributes:dic];
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CGPoint textPoint = CGPointMake(outsidePoint.x - textSize.width/2, outsidePoint.y - textSize.height/2);//根据中点坐标绘制
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[mText drawAtPoint:textPoint withAttributes:dic];
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}
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/**
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绘制渐变效果
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*/
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-(void)drawArcWithGradient:(CGContextRef)ctx rect:(CGRect)rect{
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// 创建一个渐变色
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// 创建RGB色彩空间，创建这个以后，context里面用的颜色都是用RGB表示
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CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
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CGGradientRef gradient;
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if(_isOffline){
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gradient = CGGradientCreateWithColors(colorSpace, (__bridge CFArrayRef)_mOfflineProgressBarColors, NULL);
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}else{
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gradient = CGGradientCreateWithColors(colorSpace, (__bridge CFArrayRef)_mWaveProgressBarColors, NULL);
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}
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// 释放色彩空间
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CGColorSpaceRelease(colorSpace);
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colorSpace = NULL;
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// 剪裁路径
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CGContextClip(ctx);
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// 用渐变色填充
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CGContextDrawLinearGradient(ctx, gradient, CGPointMake(rect.origin.x, rect.origin.y), CGPointMake(rect.origin.x+rect.size.width, rect.origin.y+rect.size.height), 0);
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// 释放渐变色
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CGGradientRelease(gradient);
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gradient = NULL;
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CGContextRestoreGState(ctx);// 恢复到之前的context
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CGContextSaveGState(ctx);
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}
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///**
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// 计算2点坐标之间的距离
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//
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// @param startPoint 起点坐标
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// @param endPonit 终点坐标
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// @return 距离
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// */
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//-(float) getTwoPointDistance:(CGPoint)startPoint endPonit:(CGPoint)endPonit{
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// CGPoint v = CGPointMake(startPoint.x - endPonit.x, startPoint.y - endPonit.y);
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// float d = sqrt(SQR(v.x) + SQR(v.y));
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// NSLog(@"2点距离:%f ", d);
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// return d;
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//
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//}
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#pragma mark Touch Event 点击事件
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-(BOOL) beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
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[super beginTrackingWithTouch:touch withEvent:event];
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if(!_isClickable) return YES;//禁止点击
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_bTouchMove = NO;
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_mMoveCount = 0;
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// CGPoint startPoint = [touch locationInView:self];
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// _bIsInArcProgress = [self getStartPointIsInArcProgress:startPoint];//判断开始坐标是否在可点击区域
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_bIsInWaveProgress = YES;//不限制点击区域
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[self.mProgressChangedDelegate onStartTrackingTouch];
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return YES;
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}
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-(void)endTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event{
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[super endTrackingWithTouch:touch withEvent:event];
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if(!_isClickable) return;//禁止点击
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if(!_bTouchMove){//没移动，仅点击
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CGPoint lastPoint = [touch locationInView:self];
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[self getCurrentProgressWithLastPoint:lastPoint];
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[self sendActionsForControlEvents:UIControlEventValueChanged];
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}
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[self.mProgressChangedDelegate onStopTrackingTouch:_mProgress];
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}
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-(BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
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[super continueTrackingWithTouch:touch withEvent:event];
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if(!_isClickable) return YES;//禁止点击
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if(_mMoveCount < 2){
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_mMoveCount++;
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}else{
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_bTouchMove = YES; //开始移动
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}
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if(_bIsInWaveProgress){//如果刚开始点击的坐标在可点击区域
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CGPoint lastPoint = [touch locationInView:self];
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[self getCurrentProgressWithLastPoint:lastPoint];
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}
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[self sendActionsForControlEvents:UIControlEventValueChanged];
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return YES;
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}
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///**
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// 判断最后离开坐标是否在可点击区域
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//
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// @param lastPoint 最后的坐标
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// */
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//-(void)getEndPointIsInArcProgress:(CGPoint)lastPoint {
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// [self getCurrentProgressWithLastPoint:lastPoint];
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//}
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/**
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根据坐标计算出当前进度百分比和对应的进度值
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@param point 当前坐标
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*/
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-(void)getCurrentProgressWithLastPoint:(CGPoint)point {
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_mPercent = (point.y) / _mWaveHeight;
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if(_mPercent > 1){
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_mPercent = 1;
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}else if(_mPercent < 0){
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_mPercent = 0;
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}
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_mPercent = 1 - _mPercent;
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_mProgress = _mPercent * (_mMaxValue - _mMinValue) + _mMinValue;
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if(_bTouchMove){
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[self.mProgressChangedDelegate onProgressChanged:_mProgress];
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}
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[self setNeedsDisplay];
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}
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/**
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根据进度值，计算当前 _mProgressAngle值
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@param mProgress 进度值
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*/
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-(void)setSeekBarProgressToValue:(int)mProgress{
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if(mProgress < _mMinValue){
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mProgress = _mMinValue;
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}
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if(mProgress > _mMaxValue){
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mProgress = _mMaxValue;
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}
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_mProgress = mProgress;
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_mPercent = (_mProgress - _mMinValue) / (_mMaxValue - _mMinValue);
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// [self.mProgressChangedDelegate onProgressChanged:_mProgress];
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}
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#pragma mark 设置进度条位置
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/**
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设置进度值
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@param mProgress 进度值
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*/
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-(void)setProgress:(int)mProgress{
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[self setSeekBarProgressToValue:mProgress];
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[self setNeedsDisplay];
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}
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/**
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设置进度显示值单位
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@param mString 单位字符
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*/
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-(void)setProgressBarUnitSring:(NSString *)mString{
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_mProgressBarUnitSring = mString;
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}
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/**
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设置最大值最小值
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@param mMinValue 最小值
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@param mMaxValue 最大值
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*/
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-(void)setMinAndMaxValue:(float)mMinValue mMaxValue:(float)mMaxValue{
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if(mMinValue < mMaxValue){
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_mMinValue = mMinValue;
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_mMaxValue = mMaxValue;
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}else{
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_mMinValue = mMaxValue;
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_mMaxValue = mMinValue;
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}
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_mProgress = _mMinValue;
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_mPercent = 0.0f;
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}
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/**
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重置布局
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@param mCGRect 布局
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*/
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-(void)initWithFrameWaveSeekBar:(CGRect) mCGRect{
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self.frame = mCGRect;
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[self refreshFrame];
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}
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/**
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设置渐变效果
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@param startColor 开始颜色
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@param endColor 结束颜色
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*/
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-(void)setProgressBarColors:(UIColor *)startColor endColor:(UIColor*)endColor{
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// _mArcProgressBarColors = [NSArray arrayWithObjects（id）startColor.CGColor，（id）endColor.CGColor，nil];
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_mWaveProgressBarColors = @[
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(id)startColor.CGColor,
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(id)endColor.CGColor
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];
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}
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/**
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设置进度条颜色 单一颜色
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@param oneColor 单一颜色
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*/
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-(void)setProgressBarColor:(UIColor *)oneColor{
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_mWaveProgressBarColors = @[
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(id)oneColor.CGColor,
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(id)oneColor.CGColor
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];
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}
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/**
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获取高度 Y值
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*/
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-(CGFloat)getProgressY{
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return _mCurtainY;
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}
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/**
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设置是否离线
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*/
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-(void)setOffline:(BOOL)isOffline{
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_isOffline = isOffline;
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_isClickable = !_isOffline;
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[self setNeedsDisplay];
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}
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/**
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设置显示拖动按钮
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*/
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-(void)setThumbBtnShow:(BOOL)isShow{
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_isShowThumbBtn = isShow;
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[self setNeedsDisplay];
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}
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/**
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设置离线进度条颜色 单一颜色
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@param oneColor 单一颜色
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*/
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-(void)setOfflineProgressBarColor:(UIColor *)oneColor{
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_mOfflineProgressBarColors = @[
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(id)oneColor.CGColor,
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(id)oneColor.CGColor
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];
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}
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@end
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