java操作svg文件

最新推荐文章于 2024-08-23 00:08:40 发布

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最新推荐文章于 2024-08-23 00:08:40 发布 · 7.5k 阅读

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#java svg

该程序演示了如何使用Java和Batik库解析SVG文件，并实现SVG元素的加载、显示、放大、缩小、旋转和平移操作。通过监听事件处理用户交互，允许在SVG画布上动态添加矩形和圆形。

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/*
* 功能：解析svg文件，并对svg文件进行操作
*/
package svgapplication;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import org.apache.batik.svggen.SVGGraphics2D;
import org.apache.batik.swing.JSVGCanvas;
import org.apache.batik.swing.gvt.GVTTreeRendererAdapter;
import org.apache.batik.swing.gvt.GVTTreeRendererEvent;
import org.apache.batik.swing.svg.GVTTreeBuilderAdapter;
import org.apache.batik.swing.svg.GVTTreeBuilderEvent;
import org.apache.batik.swing.svg.SVGDocumentLoaderAdapter;
import org.apache.batik.swing.svg.SVGDocumentLoaderEvent;
import org.w3c.dom.Element;
import org.w3c.dom.svg.SVGDocument;
import org.w3c.dom.svg.SVGElement;

public class SVGDemo {

public static void main(String[] args) {
// Create a new JFrame.
JFrame f = new JFrame("Batik");
SVGDemo app = new SVGDemo(f);

// Add components to the frame.
f.getContentPane().add(app.createComponents());

// Display the frame.
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
f.setSize(800, 800);
f.setVisible(true);
}
// The frame.
protected JFrame frame;
// The "Load" button, which displays up a file chooser upon clicking.
protected JButton button = new JButton("Load...");
protected JButton Bigbutton = new JButton("放大");
protected JButton Smallbutton = new JButton("缩小");
protected JButton Rotatebutton = new JButton("旋转");
protected JButton Rightbutton = new JButton("右");
protected JButton Downbutton = new JButton("下");
protected JButton Leftbutton = new JButton("左");
protected JButton Upbutton = new JButton("上");
protected JButton addbutton1 = new JButton("add矩形");
protected JButton addbutton2 = new JButton("add圆形");
protected JButton deletebutton = new JButton("delete");
protected JButton savebutton = new JButton("sss");
// The status label.
protected JLabel label = new JLabel();
// The SVG canvas.
protected JSVGCanvas svgCanvas = new JSVGCanvas();
SVGGraphics2D svgGenerator;//一个实例生成器
SVGDocument svgDocument;//SVGDocument实例
SVGElement svgRoot;//SVGElement实例
Element ele;//通过ID获得的元素
float n = 1;//放大缩小按钮点击次数
float m = 1;//旋转按钮点击次数
int a = 0;//x轴按钮点击次数
int b = 0;//y轴按钮点击次数
int