specialattributesproperties.java

WAP ide 代码

package wapide;

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

/**
 * A small dialog for setting the id, class, and xml:lang attributes.
 *
 * Copyright:    Copyright (c) 2003
 * Company:
 * @author Mark Busman
 * @version 1.0
 *
 * For License and contact information see WAPIDE.java
 */

public class SpecialAttributesProperties extends JDialog {

  private JPanel ButtonPanel = new JPanel();
  private FlowLayout flowLayout1 = new FlowLayout();
  private JButton Cancel = new JButton();
  private JButton Ok = new JButton();
  private JPanel MainPanel = new JPanel();
  private GridLayout gridLayout1 = new GridLayout();
  private JLabel IdLabel = new JLabel();
  private JLabel ClassLabel = new JLabel();
  private JLabel XmllangLabel = new JLabel();
  private JTextField IdText = new JTextField();
  private JTextField ClassText = new JTextField();
  private JTextField XmllangText = new JTextField();

  // User data
  /**
   * The selected panel passed into the constructor from the calling dialog.
   */
  Component theSelectedPanel;
  /**
   * The validator for checking for reserved words and symbols in text boxes.
   */
  WMLTextValidator textValidator = new WMLTextValidator();
  /**
   * Determines if the xml:lang attribute can be set, true means the attribute
   * is editable.
   */
  boolean AllowXMLLang = true;

  /**
   * Constructs a SpecialAttributesProperties dialog.
   */
  public SpecialAttributesProperties() {
    try {
      jbInit();
      setSize(345, 145);
      setProperties();
      show();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  /**
   * Constructs a SpecialAttributesProperties dialog and initializes the
   * appropriate values
   * @param Component panel - A panel with it's name attribute set.
   * @param boolean allowcmllang - enable or disable xmllang editting.
   */
  public SpecialAttributesProperties(Component panel, boolean allowxmllang) {
    try {
      theSelectedPanel = panel;
      AllowXMLLang = allowxmllang;
      jbInit();
      setSize(345, 145);
      setProperties();
      show();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  //public static void main(String[] args) {
  //  SpecialAttributesProperties specialAttributesProperties1 = new SpecialAttributesProperties();
  //}

  /**
   * Initializes the dialog and its controls.
   */
  private void jbInit() throws Exception {
    this.setResizable(false);
    this.setModal(true);
    this.setTitle("Id, class, and xml:lang properties");
    ButtonPanel.setLayout(flowLayout1);
    flowLayout1.setAlignment(FlowLayout.RIGHT);
    Cancel.setNextFocusableComponent(IdText);
    Cancel.setText("Cancel");
    Cancel.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        Cancel_actionPerformed(e);
      }
    });
    Ok.setNextFocusableComponent(Cancel);
    Ok.setPreferredSize(new Dimension(81, 29));
    Ok.setText("Ok");
    Ok.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        Ok_actionPerformed(e);
      }
    });
    MainPanel.setLayout(gridLayout1);
    gridLayout1.setRows(3);
    gridLayout1.setColumns(2);
    IdLabel.setRequestFocusEnabled(false);
    IdLabel.setText("Id");
    ClassLabel.setRequestFocusEnabled(false);
    ClassLabel.setText("Class");
    XmllangLabel.setRequestFocusEnabled(false);
    XmllangLabel.setText("Xml:lang");
    ButtonPanel.setRequestFocusEnabled(false);
    MainPanel.setRequestFocusEnabled(false);
    IdText.setNextFocusableComponent(ClassText);
    ClassText.setNextFocusableComponent(XmllangText);
    XmllangText.setNextFocusableComponent(Ok);
    this.getContentPane().add(ButtonPanel, BorderLayout.SOUTH);
    ButtonPanel.add(Ok, null);
    ButtonPanel.add(Cancel, null);
    this.getContentPane().add(MainPanel, BorderLayout.CENTER);
    MainPanel.add(IdLabel, null);
    MainPanel.add(IdText, null);
    MainPanel.add(ClassLabel, null);
    MainPanel.add(ClassText, null);
    MainPanel.add(XmllangLabel, null);
    MainPanel.add(XmllangText, null);
  }

  /**
   * Handles the OK Button, if pressed prepares the data for retrieval, performs
   * validation checks on the data entered, and hides the dialog.
   */
  private void Ok_actionPerformed(ActionEvent e) {
    boolean[] invalid = new boolean[3];
    String[] controls = {"Id", "Class", "Xml:lang"};
    String message = "";
    String properties = "";

    if (IdText.getText().length() > 0) {
      properties = properties + "id=\"" + IdText.getText() + "\" ";
      invalid[0] = textValidator.checkText(IdText.getText());
    }
    if (ClassText.getText().length() > 0) {
      properties = properties + "class=\"" + ClassText.getText() + "\" ";
      invalid[1] = textValidator.checkText(ClassText.getText());
    }
    if (XmllangText.getText().length() > 0) {
      properties = properties + "xml:lang=\"" + XmllangText.getText() + "\" ";
      invalid[2] = textValidator.checkText(XmllangText.getText());
    }
    properties = properties.trim();

    boolean valid = true;
    for (int x = 0; x < 3; x++) {
      if ((valid) && (invalid[x]))
        valid = false;
      if (invalid[x])
        message = message + controls[x] + "\n";
    }

    if (valid) {
      theSelectedPanel.setName(properties);
      setVisible(false);
      dispose();
    }
    else {
      message = "The following fields have one or more restricted character(s):\n" + message;
      message = message + "\nThe following characters are reserved for WML:\n";
      message = message + "<, >, \", ', and =\n";
      message = message + "\nThey cannot be used in the values of attributes,\n";
      message = message + "the = character is not accepted by all attributes.";
      message = message + "\n\nSee WAP Developer's Guide for more Information.";
      textValidator.displayWarning(null, message);
    }
  }

  /**
   * Handles the Cancel Button, if pressed discards edits and hides dialog.
   */
  private void Cancel_actionPerformed(ActionEvent e) {
    setVisible(false);
    dispose();
  }

  /**
   * Sets the properties specified in the dialog and assigns them to the
   * name attribute of the panel provided as a single string for further
   * processing outside this class.
   */
  private void setProperties() {
    String properties = theSelectedPanel.getName();
    if (properties == null)
      properties = "";

    if (properties.indexOf("id=") > -1) {
      int pos = properties.indexOf("id=") + 4;
      int end = properties.indexOf("\"", pos);
      String text = properties.substring(pos, end);
      IdText.setText(text);
    }
    if (properties.indexOf("class=") > -1) {
      int pos = properties.indexOf("class=") + 7;
      int end = properties.indexOf("\"", pos);
      String text = properties.substring(pos, end);
      ClassText.setText(text);
    }
    if (AllowXMLLang) {
      XmllangText.setEnabled(true);
      if (properties.indexOf("xml:lang=") > -1)  {
        int pos = properties.indexOf("xml:lang=") + 10;
        int end = properties.indexOf("\"", pos);
        String text = properties.substring(pos, end);
        XmllangText.setText(text);
      }
    }
    else {
      XmllangText.setEnabled(true);
      XmllangText.setText("");
      XmllangText.setEnabled(false);
    }
  }
}