package com.qxueyou.scc.school.util;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.RenderingHints;
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import java.awt.Transparency;
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import java.awt.geom.Ellipse2D;
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import java.awt.image.BufferedImage;
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import java.util.List;
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import java.util.Map;
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/**
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* 学习报告学习时间分布图生成类utils
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* @author xiadehu
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*
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*/
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public class StudyReportUtils {
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/**
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*
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* @param width 图片宽度
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* @param height 图片高度
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* @param startHour1 开始小时1
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* @param text1 显示文本1
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* @param startHour2 开始小时2
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* @param text2 显示文本2
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* @return BufferedImage 对象
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*/
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public static BufferedImage drawPng(int width,int height,List<Map<String,Object>> times){
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//初始化画布
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BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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Graphics2D g2d = image.createGraphics();
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image = g2d.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);
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g2d.dispose();
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g2d = image.createGraphics();
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//背景
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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g2d.setColor(new Color(248,197,116));
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double centerX = width/2;
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double centerY = height/2;
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double radius = width/2;
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Ellipse2D circle = new Ellipse2D.Double();
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circle.setFrameFromCenter(centerX, centerY, centerX + radius, centerY+ radius);
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g2d.draw(circle);
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g2d.fill(circle);
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//绘制时间文字
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for(Map<String,Object> time:times){
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drawStudyTimeArc(width, height, (Integer)time.get("timeFrom"),(Integer)time.get("timeTo"), g2d,new Color(255,255,255));
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}
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for(Map<String,Object> time:times){
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drawStudyTimeText(width, height, (Integer)time.get("timeFrom"), (String)time.get("name")+(String)time.get("percent"), g2d,new Color(255,0,0));
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}
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g2d.setColor(new Color(255,255,255));
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circle = new Ellipse2D.Double();
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circle.setFrameFromCenter(centerX, centerY, centerX + 6, centerY+ 6);
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g2d.draw(circle);
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g2d.setColor(new Color(248,197,116));
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circle = new Ellipse2D.Double();
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circle.setFrameFromCenter(centerX, centerY, centerX + 5, centerY+ 5);
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g2d.fill(circle);
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//释放
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g2d.dispose();
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return image;
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}
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private static void drawStudyTimeArc(int width, int height, int startHour,int endHour,
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Graphics2D g2d,Color backGroundColor) {
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g2d.setColor(backGroundColor);
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g2d.drawArc(0, 0, width, height, -15*(startHour-5), 15*((24+endHour-startHour)%24));
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g2d.fillArc(0, 0, width, height, -15*(startHour-5), 15*((24+endHour-startHour)%24));
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}
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private static void drawStudyTimeText(int width, int height, int startHour1,
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String text1, Graphics2D g2d,Color textColor) {
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double sin = Math.sin(adjustStartIndex(startHour1)*15*Math.PI/180);
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double cos = Math.cos(adjustStartIndex(startHour1)*15*Math.PI/180);
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g2d.setColor(textColor);
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float x1 = (float)(adjustRadius(startHour1,width)/2.0d*sin);
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float x = x1+width/2;
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float y1=(float)(adjustRadius(startHour1,width)/2.0d*cos);
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float y = height/2-y1;
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g2d.setFont(new Font("宋体", Font.PLAIN, 12));
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g2d.drawString(text1, x, y);
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}
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private static float adjustStartIndex(int startHour){
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if(startHour<=3){
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return startHour;
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}
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if(startHour==5){
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return startHour+0.6f;
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}
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if(startHour==6||startHour==7){
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return startHour+0.9f;
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}
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if(startHour>=8&&startHour<=14){
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return startHour+1f;
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}
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if(startHour==15){
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return startHour+0.5f;
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}
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if(startHour==18){
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return startHour+0.3f;
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}
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if(startHour>=19&&startHour<=23){
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return startHour+0.2f;
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}
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return startHour+0.5f;
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}
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private static float adjustRadius(int startHour,int width){
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switch(startHour){
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case 2:return width-70;
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case 3:return width-70;
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case 4:return width-100;
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case 5:return width-100;
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case 6:return width-100;
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case 7:return width-100;
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case 8:return width-80;
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case 9:return width-70;
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case 11:return width-30;
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case 12:return width-70;
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case 13:return width-30;
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case 14:return width-10;
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case 15:return width-10;
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default :return width-50;
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}
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}
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public static void main(String[] args){
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}
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}
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