Java生成图片,
分享于 点击 36881 次 点评:7
Java生成图片,
package com.wizard;import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.font.FontRenderContext;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.*;
import javax.swing.JButton;
public class GrpaDemo ...{
public static void main(String[] args) throws IOException...{
int width = 100;
int height = 100;
String s = "Hello";
File file = new File("d:/image.png");
Font font = new Font("Serif", Font.BOLD, 10);
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = (Graphics2D)bi.getGraphics();
g2.setBackground(Color.yellow);
g2.clearRect(0, 0, width, height);
g2.setPaint(Color.RED);
FontRenderContext context = g2.getFontRenderContext();
Rectangle2D bounds = font.getStringBounds(s, context);
double x = (width - bounds.getWidth()) / 2;
double y = (height - bounds.getHeight()) / 2;
double ascent = -bounds.getY();
double baseY = y + ascent;
g2.drawString(s, (int)x, (int)baseY);
Rectangle2D rect =new Rectangle2D.Double(2.0D,2.0D,100D,100D);
g2.setPaint(Color.blue);
g2.draw(rect);
JButton btn = new JButton("Hello");
btn.setBounds(10, 10, 50, 50);
Graphics2D g3 = (Graphics2D)btn.getGraphics();
// Shape sh = g3
// g2.draw(sh);
ImageIO.write(bi, "png", file);
// ImageIO.write(btn, "png", file);
}
}
相关文章
- 暂无相关文章
用户点评