demobrowser.java.bak

java绘图 java awt 经典绘图的例子,对于初学awt模块的人非常有帮助.

/*
 * DemoBrowser.java
 *
 * Created on 2008年3月25日, 上午11:09
 */
package swing;

import java.io.IOException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author  zhaolin
 */
public class DemoBrowser extends javax.swing.JFrame {

    /** Creates new form DemoBrowser */
    public DemoBrowser() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        entityManager1 = javax.persistence.Persistence.createEntityManagerFactory(null).createEntityManager();
        query1 = ((javax.persistence.EntityManager)null).createQuery("");
        list1 = ((javax.persistence.Query)null).getResultList();
        jLabel1 = new javax.swing.JLabel();
        jTextFieldURL = new javax.swing.JTextField();
        jButtonGoTo = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        jEditorPaneBrowser = new javax.swing.JEditorPane();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setText("地址:");

        jTextFieldURL.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextFieldURLActionPerformed(evt);
            }
        });

        jButtonGoTo.setText("转到");
        jButtonGoTo.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonGoToActionPerformed(evt);
            }
        });

        jEditorPaneBrowser.setEditable(false);
        jEditorPaneBrowser.addHyperlinkListener(new javax.swing.event.HyperlinkListener() {
            public void hyperlinkUpdate(javax.swing.event.HyperlinkEvent evt) {
                jEditorPaneBrowserHyperlinkUpdate(evt);
            }
        });
        jScrollPane1.setViewportView(jEditorPaneBrowser);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 396, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jTextFieldURL, javax.swing.GroupLayout.DEFAULT_SIZE, 297, Short.MAX_VALUE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButtonGoTo)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(jTextFieldURL, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButtonGoTo))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 249, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents
    private void jButtonGoToActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonGoToActionPerformed
        // TODO add your handling code here:
        final String strURL = jTextFieldURL.getText();
        if (strURL != null && !strURL.trim().equals("")) {
            new Thread(){
                public void run() {
                    try {
                        jEditorPaneBrowser.setPage(strURL);
                    } catch (IOException ex) {
                        Logger.getLogger(DemoBrowser.class.getName()).log(Level.SEVERE, null, ex);
                    }
                }
            }.start();
        }
    }//GEN-LAST:event_jButtonGoToActionPerformed

    private void jEditorPaneBrowserHyperlinkUpdate(javax.swing.event.HyperlinkEvent evt) {//GEN-FIRST:event_jEditorPaneBrowserHyperlinkUpdate
        // TODO add your handling code here:
        if (evt.getEventType() == javax.swing.event.HyperlinkEvent.EventType.ACTIVATED) {
            final URL url = evt.getURL();
            if (url != null) {
                try {
                    this.jTextFieldURL.setText(url.toString());
                    jEditorPaneBrowser.setPage(url);
                } catch (IOException ex) {
                    Logger.getLogger(DemoBrowser.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }//GEN-LAST:event_jEditorPaneBrowserHyperlinkUpdate

    private void jTextFieldURLActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextFieldURLActionPerformed
        // TODO add your handling code here:
        this.jButtonGoTo.doClick();
    }//GEN-LAST:event_jTextFieldURLActionPerformed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new DemoBrowser().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.persistence.EntityManager entityManager1;
    private javax.swing.JButton jButtonGoTo;
    private javax.swing.JEditorPane jEditorPaneBrowser;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField jTextFieldURL;
    private java.util.List list1;
    private javax.persistence.Query query1;
    // End of variables declaration//GEN-END:variables
}