package com.qxueyou.scc.org.util;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.FontMetrics;
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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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/**
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* 课程超市工具类
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* @author xiadehu
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*
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*/
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public class CourseMarketUtils {
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/**
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*
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* @param text
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* @param bgColor
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* @return
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*/
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public static BufferedImage drawPng(char letter,Color bgColor){
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//初始化画布
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int width=120;
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int height = 120;
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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.setColor(bgColor);
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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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.fill(circle);
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//文字
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g2d.setColor(new Color(255,255,255));
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int textSize = 64;
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Font font = new Font("微软雅黑", Font.PLAIN, textSize);
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g2d.setFont(font);
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FontMetrics metrics = g2d.getFontMetrics();
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float x = (width - metrics.charWidth(letter)) / 2.0f;
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float y = (height - metrics.getHeight()) / 2.0f + metrics.getAscent();
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g2d.drawString(String.valueOf(letter), x, y);
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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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public static void main(String[] args){
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System.out.println((String)null);
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}
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}
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