fonteffect.jsp

提供 精通Java Web动态图表编程 一书的源代码, 大家赶快下载呀

<!--
	Fig. 6.04_02_02: fontEffect.jsp
	功能: 绘制多种效果的字体
-->
<%@ page language="java" contentType="image/png;charset=GB2312"
	import="java.awt.image.*"
	import="java.awt.*"
	import="javax.imageio.*"
	import="java.util.*"
%>
<%!
int ShiftNorth(int p, int distance)
{
   return (p - distance);
}

int ShiftSouth(int p, int distance)
{
   return (p + distance);
}

int ShiftEast(int p, int distance)
{
   return (p + distance);
}

int ShiftWest(int p, int distance)
{
   return (p - distance);
}
%>

<%
	// 清空缓冲区
	response.reset();

	// 注意这里的MIME类型
	response.setContentType("image/png");

	// 创建一个 640X480 的图像
	int width = 640, height = 480;

	BufferedImage image = new BufferedImage(width, height,
						BufferedImage.TYPE_INT_RGB);
	Graphics g = image.getGraphics();

	// 填充背景
	Color bg = new Color(150, 150, 150);
	g.setColor(bg);
	g.fillRect(0, 0, width, height);

	// 生成阴影字体效果
	int x = 10, y = 100;
	g.setFont(new Font("方正粗宋简体", Font.PLAIN, 35));
	g.setColor(new Color(50, 50, 50));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 2), ShiftSouth(y, 2));
	g.setColor(new Color(220, 220, 220));
	g.drawString("欢迎来到Java Web图表编程的世界", x, y);

	// 生成浮雕字体效果
	x = 10;
	y = 150;
	g.setColor(new Color(220, 220, 220));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 1), ShiftSouth(y, 1));
	g.setColor(new Color(50, 50, 50));
	g.drawString("欢迎来到Java Web图表编程的世界", x, y);

	// 生成轮廓字体效果
	x = 10;
	y = 200;
	g.setColor(Color.RED);
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftWest(x, 1), ShiftNorth(y, 1));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftWest(x, 1), ShiftSouth(y, 1));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 1), ShiftNorth(y, 1));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 1), ShiftSouth(y, 1));
	g.setColor(Color.YELLOW);
	g.drawString("欢迎来到Java Web图表编程的世界", x, y);

	// 生成空心字体效果
	x = 10;
	y = 250;
	g.setColor(Color.BLACK);
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftWest(x, 1), ShiftNorth(y, 1));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftWest(x, 1), ShiftSouth(y, 1));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 1), ShiftNorth(y, 1));
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 1), ShiftSouth(y, 1));
	g.setColor(bg);
	g.drawString("欢迎来到Java Web图表编程的世界", x, y);

	// 生成百页窗字体效果
	x = 10;
	y = 300;
	int w = (g.getFontMetrics()).stringWidth("欢迎来到Java Web图表编程的世界");
	int h = (g.getFontMetrics()).getHeight();
	int d = (g.getFontMetrics()).getDescent();
	g.setColor(new Color(220, 220, 220));
	g.drawString("欢迎来到Java Web图表编程的世界", x, y);
	g.setColor(bg);
	for (int i = 0; i < h; i += 3)
	{
	  g.drawLine(x, y + d - i, x + w, y + d - i);
	}

	// 生成3D字体效果
	x = 10;
	y = 350;
	Color topColor = new Color(200, 200, 0);
	Color sideColor = new Color(100, 100, 0);
	for (int i = 0; i < 5; i++)
	{
	  g.setColor(topColor);
	  g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, i), ShiftNorth
				   (ShiftSouth(y, i), 1));
	  g.setColor(sideColor);
	  g.drawString("欢迎来到Java Web图表编程的世界", ShiftWest(ShiftEast(x, i), 1),
				   ShiftSouth(y, i));
	}

	g.setColor(Color.YELLOW);
	g.drawString("欢迎来到Java Web图表编程的世界", ShiftEast(x, 5), ShiftSouth(y, 5));

	// 生成运动字体效果
	x = 300;
	y = 400;
	int fontSize = 0;

	for (int i = 0; i < 20; i++)
	{
	  fontSize = 12+i;
	  g.setFont(new Font("方正粗宋简体", Font.PLAIN, fontSize));
	  w = g.getFontMetrics().stringWidth("欢迎来到Java Web图表编程的世界");
	  g.setColor(new Color(0, 65+i * 10, 0));
	  g.drawString("欢迎来到Java Web图表编程的世界", (width - w) / 2, ShiftSouth(y,
				   2 * i));

	}

	// 部署图形
	g.dispose();

	// 利用ImageIO类的write方法对图像进行编码
	ServletOutputStream sos = response.getOutputStream();
	ImageIO.write(image, "PNG", sos);
	sos.close();
%>


<%
/**************************************************************************
 * (C) Copyright 2004-2005 by Jingkui Zhong(钟京馗) and Huan Tang(唐桓).  *
 * All Rights Reserved.                                                   *
 *                                                                        *
 * DISCLAIMER: The authors of this code have used their                   *
 * best efforts in preparing the code. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these codes. The authors *
 * shall not be liable in any event for incidental or consequential       *
 * damages in connection with, or arising out of, the furnishing,         *
 * performance, or use of these programs.                                 *
 **************************************************************************/

%>