package com.qxueyou.scc.org.util;

import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;


/**
 * 课程超市工具类
 * @author xiadehu
 *
 */
public class CourseMarketUtils {

	/**
	 * 
	 * @param text
	 * @param bgColor
	 * @return
	 */
	public static BufferedImage drawPng(char letter,Color bgColor){
		
		//初始化画布
		int width=120;
		int height = 120;
		BufferedImage image = new BufferedImage(width, height,     BufferedImage.TYPE_INT_RGB);
		Graphics2D g2d = image.createGraphics();
		image = g2d.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);
		g2d.dispose();
		g2d = image.createGraphics();
		 
		//背景
		g2d.setColor(bgColor);
		g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		double centerX = width/2;
		double centerY = height/2;
		double radius = width/2;
		Ellipse2D circle = new Ellipse2D.Double();
		circle.setFrameFromCenter(centerX, centerY, centerX + radius, centerY+ radius);
		g2d.fill(circle);
		
		//文字
		g2d.setColor(new Color(255,255,255));
		int textSize = 64;
		
		Font font = new Font("微软雅黑", Font.PLAIN, textSize);
		g2d.setFont(font);
		FontMetrics metrics = g2d.getFontMetrics();
		
		float x = (width - metrics.charWidth(letter)) / 2.0f;
		float y = (height - metrics.getHeight()) / 2.0f + metrics.getAscent();
		
		g2d.drawString(String.valueOf(letter), x, y);
		
		//释放
		g2d.dispose();
		
		return image;
	}
	
	public static void main(String[] args){
		System.out.println((String)null);
	}
}