finddialog.java

WAP ide 代码

package wapide;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

/**
 * Copyright: Copyright (c) 2003
 * @author Mark Busman
 * @version 1.0
 *
 * For License and contact information see WAPIDE.java
 */

public class FindDialog extends JDialog {
  private BorderLayout borderLayout1 = new BorderLayout();
  private JPanel FindPanel = new JPanel();
  private JTextField FindText = new JTextField();
  private JLabel jLabel1 = new JLabel();
  private JPanel ButtonPanel = new JPanel();
  private JPanel jPanel3 = new JPanel();
  private BorderLayout borderLayout2 = new BorderLayout();
  private FlowLayout flowLayout1 = new FlowLayout();
  private JButton NextButton = new JButton();
  private JButton FindButton = new JButton();
  private GridBagLayout gridBagLayout1 = new GridBagLayout();

  /**
   * The pane in which searching should take place.
   */
  private JTextPane thePane;
  /**
   * Position in pane.
   */
  private int Pos = -1;
  /**
   * Number of times an item is found.
   */
  private int count = 0;

  /**
   * Constructs and displays a FindDialog.
   */
  public FindDialog(JTextPane pane) {
    try {
      thePane = pane;
      jbInit();
      pack();
      this.setResizable(true);
      setSize(350, 120);
      this.setResizable(false);
      show();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  /**
   * Initializes the dialog components.
   */
  private void jbInit() throws Exception {
    this.getContentPane().setLayout(borderLayout1);
    this.setResizable(false);
    this.setTitle("Find");
    this.addWindowListener(new java.awt.event.WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        this_windowClosing(e);
      }
    });
    jLabel1.setText("Text to find:");
    jPanel3.setPreferredSize(new Dimension(105, 90));
    jPanel3.setLayout(flowLayout1);
    ButtonPanel.setLayout(borderLayout2);
    NextButton.setPreferredSize(new Dimension(95, 29));
    NextButton.setText("Next");
    NextButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        NextButton_actionPerformed(e);
      }
    });
    FindButton.setPreferredSize(new Dimension(95, 29));
    FindButton.setText("Find");
    FindButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        FindButton_actionPerformed(e);
      }
    });
    FindPanel.setLayout(gridBagLayout1);
    FindPanel.setPreferredSize(new Dimension(89, 34));
    FindText.setPreferredSize(new Dimension(129, 22));
    FindPanel.add(jLabel1,     new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 195, 6));
    FindPanel.add(FindText,      new GridBagConstraints(0, 1, 1, 1, 1.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 1, 0), 289, 10));
    this.getContentPane().add(FindPanel, BorderLayout.CENTER);
    this.getContentPane().add(ButtonPanel, BorderLayout.EAST);
    ButtonPanel.add(jPanel3,  BorderLayout.NORTH);
    jPanel3.add(FindButton, null);
    jPanel3.add(NextButton, null);
  }

  /**
   * Performs a search for the keyword in the text pane.
   */
  private void FindButton_actionPerformed(ActionEvent e) {
    Pos = -1;
    Pos = thePane.getText().indexOf(FindText.getText());
    if (Pos > -1) {
      thePane.setSelectionStart(Pos);
      thePane.setSelectionEnd(Pos + FindText.getText().length());
    }
    else {
      JOptionPane.showMessageDialog(null, "Text not found.",
                                "Warning", JOptionPane.INFORMATION_MESSAGE);
    }
  }

  /**
   * Searches the text pane for the keyword after the initial search.
   */
  private void NextButton_actionPerformed(ActionEvent e) {
    Pos = thePane.getText().indexOf(FindText.getText(), Pos + 1);
    if (Pos > -1) {
      thePane.setSelectionStart(Pos);
      thePane.setSelectionEnd(Pos + FindText.getText().length());
    }
    else {
      Pos = -1;
      Pos = thePane.getText().indexOf(FindText.getText(), Pos + 1);
      if (Pos > -1) {
        thePane.setSelectionStart(Pos);
        thePane.setSelectionEnd(Pos + FindText.getText().length());
      }
      else {
        JOptionPane.showMessageDialog(null, "Text not found.",
                                "Warning", JOptionPane.INFORMATION_MESSAGE);
      }
    }
  }

  /**
   * Closes the dialog.
   */
  private void this_windowClosing(WindowEvent e) {
    setVisible(false);
    dispose();
  }
}