/*
 * GeneralPropPane.java
 *
 * Created on September 30, 2001, 3:34 PM
 *
 * Modification Log:
 * 1.00 30th Sep 2001 Tanmay Original version.
 * 1.01 30th Jan 2002 Tanmay Implemented toggle modify mode.
 * 1.02 02nd Feb 2002 Tanmay Moved over to new attributes dialog.
 *-----------------------------------------------------------------------------------------
 * 10th Sep 2003 Tanmay Moved to SourceForge (http://classeditor.sourceforge.net)
 *-----------------------------------------------------------------------------------------
 */

package gui;

import classfile.ClassFile;
import classfile.ConstantPoolInfo;
import gui.attributes.*;
import guihelper.AttributeTreeNode;

import javax.swing.tree.*;
import javax.swing.JOptionPane;

/**
 * Copyright (C) 2002-2003 Tanmay K. Mohapatra
 * <br>
 *
 * @author 	Tanmay K. Mohapatra
 * @version 1.02, 02nd February, 2002
 */
public class GeneralPropPane extends javax.swing.JPanel {
 
 private ClassFile currClassFile;
 private javax.swing.tree.DefaultMutableTreeNode interfacesRootNode;
 private boolean bEditable;
 
 /** Creates new form GeneralPropPane */
 public GeneralPropPane() {
 initComponents();
 treeInterfaces.getSelectionModel().setSelectionMode(javax.swing.tree.TreeSelectionModel.SINGLE_TREE_SELECTION);
 ((DefaultTreeCellRenderer)treeInterfaces.getCellRenderer()).setLeafIcon(new javax.swing.ImageIcon(getClass().getResource("/res/interface.gif")));
 }
 
 public void setModifyMode(boolean bEditableIn) {
 bEditable = bEditableIn;
 
 txtClassName.setEnabled(bEditable);
 txtSuperClassName.setEnabled(bEditable);
 txtMagicNumber.setEnabled(bEditable);
 txtMajorVersion.setEnabled(bEditable);
 txtMinorVersion.setEnabled(bEditable);
 
 chkFinal.setEnabled(bEditable);
 chkPublic.setEnabled(bEditable);
 chkSuper.setEnabled(bEditable);
 chkInterface.setEnabled(bEditable);
 chkAbstract.setEnabled(bEditable);
 
 txtNewInterfaceName.setEnabled(bEditable);
 txtConstPoolIndex.setEnabled(bEditable);
 
 btnDiscardChanges.setEnabled(bEditable);
 btnAcceptChanges.setEnabled(bEditable);
 btnDeleteInterface.setEnabled(bEditable);
 btnModifyInterface.setEnabled(bEditable);
 btnAddNewInterface.setEnabled(bEditable);
 }
 
 private void modifyInterfaceName(int iIndex) {
 currClassFile.interfaces.setInterfaceName(iIndex, txtNewInterfaceName.getText());
 refreshInterfaceList();
 }
 
 private void deleteInterface(int iIndex) {
 currClassFile.interfaces.removeInterface(iIndex);
 refreshInterfaceList();
 }
 
 /**
 * Clears the UI components in preparation for display of a new class
 */
 void clear() {
 txtClassName.setText("");
 txtSuperClassName.setText("");
 txtMagicNumber.setText("");
 txtMajorVersion.setText("");
 txtMinorVersion.setText("");
 
 chkFinal.setSelected(false);
 chkPublic.setSelected(false);
 chkSuper.setSelected(false);
 chkInterface.setSelected(false);
 chkAbstract.setSelected(false);
 
 interfacesRootNode.removeAllChildren();
 treeInterfaces.setModel(new DefaultTreeModel(interfacesRootNode));
 txtNewInterfaceName.setText("");
 txtConstPoolIndex.setText("");
 }
 
 void setClassFile(ClassFile classFile) {
 currClassFile = classFile;
 }
 
 void refresh() {
 if(null == currClassFile) return;
 
 txtClassName.setText(currClassFile.classNames.getThisClassName());
 txtSuperClassName.setText(currClassFile.classNames.getSuperClassName());
 txtMagicNumber.setText(currClassFile.version.getMagicNumberString());
 txtMajorVersion.setText(currClassFile.version.getMajorVersionString());
 txtMinorVersion.setText(currClassFile.version.getMinorVersionString());
 
 chkFinal.setSelected(currClassFile.accessFlags.isFinal());
 chkPublic.setSelected(currClassFile.accessFlags.isPublic());
 chkSuper.setSelected(currClassFile.accessFlags.isSuper());
 chkInterface.setSelected(currClassFile.accessFlags.isInterface());
 chkAbstract.setSelected(currClassFile.accessFlags.isAbstract());
 refreshInterfaceList();
 }
 
 private void refreshInterfaceList() {
 interfacesRootNode.removeAllChildren();
 int iNumInterfaces = currClassFile.interfaces.getInterfacesCount();
 for(int iIndex=0; iIndex < iNumInterfaces; iIndex++) {
 String sName = currClassFile.interfaces.getInterfaceName(iIndex);
 javax.swing.tree.DefaultMutableTreeNode treeNode = new javax.swing.tree.DefaultMutableTreeNode(sName);
 treeNode.setUserObject(sName);
 interfacesRootNode.add(treeNode);
 }
 treeInterfaces.setModel(new DefaultTreeModel(interfacesRootNode));
 }
 
 private void saveChanges() {
 if(null == currClassFile) return;
 
 currClassFile.version.setMagicNumberString(txtMagicNumber.getText());
 currClassFile.version.setMajorVersionString(txtMajorVersion.getText());
 currClassFile.version.setMinorVersionString(txtMinorVersion.getText());
 currClassFile.classNames.setThisClassName(txtClassName.getText());
 currClassFile.classNames.setSuperClassName(txtSuperClassName.getText());
 
 currClassFile.accessFlags.setFinal(chkFinal.isSelected());
 currClassFile.accessFlags.setPublic(chkPublic.isSelected());
 currClassFile.accessFlags.setSuper(chkSuper.isSelected());
 currClassFile.accessFlags.setInterface(chkInterface.isSelected());
 currClassFile.accessFlags.setAbstract(chkAbstract.isSelected());
 }
 
 /** 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.
 */
 private void initComponents() {//GEN-BEGIN:initComponents
 java.awt.GridBagConstraints gridBagConstraints;

 jPanel1 = new javax.swing.JPanel();
 jPanel2 = new javax.swing.JPanel();
 lblClassName = new javax.swing.JLabel();
 txtClassName = new javax.swing.JTextField();
 lblSuperClassName = new javax.swing.JLabel();
 txtSuperClassName = new javax.swing.JTextField();
 jPanel3 = new javax.swing.JPanel();
 lblMagicNumber = new javax.swing.JLabel();
 txtMagicNumber = new javax.swing.JTextField();
 lblMajorVersion = new javax.swing.JLabel();
 txtMajorVersion = new javax.swing.JTextField();
 lblMinorVersion = new javax.swing.JLabel();
 txtMinorVersion = new javax.swing.JTextField();
 jPanel4 = new javax.swing.JPanel();
 chkFinal = new javax.swing.JCheckBox();
 chkPublic = new javax.swing.JCheckBox();
 chkInterface = new javax.swing.JCheckBox();
 chkSuper = new javax.swing.JCheckBox();
 chkAbstract = new javax.swing.JCheckBox();
 jPanel5 = new javax.swing.JPanel();
 btnShowEditAttribs = new javax.swing.JButton();
 jPanel6 = new javax.swing.JPanel();
 btnDiscardChanges = new javax.swing.JButton();
 btnAcceptChanges = new javax.swing.JButton();
 jPanel7 = new javax.swing.JPanel();
 jScrollPane1 = new javax.swing.JScrollPane();
 treeInterfaces = new javax.swing.JTree(interfacesRootNode = new javax.swing.tree.DefaultMutableTreeNode(""));
 btnDeleteInterface = new javax.swing.JButton();
 lblModifiedName = new javax.swing.JLabel();
 txtNewInterfaceName = new javax.swing.JTextField();
 btnModifyInterface = new javax.swing.JButton();
 lblConstPoolIndex = new javax.swing.JLabel();
 txtConstPoolIndex = new javax.swing.JTextField();
 btnAddNewInterface = new javax.swing.JButton();
 txtHelpText = new javax.swing.JTextArea();

 setLayout(new java.awt.GridBagLayout());

 jPanel1.setLayout(new java.awt.GridBagLayout());

 jPanel1.setBorder(new javax.swing.border.TitledBorder(null, "Class Properties", javax.swing.border.TitledBorder.LEFT, javax.swing.border.TitledBorder.DEFAULT_POSITION));
 jPanel2.setLayout(new java.awt.GridBagLayout());

 jPanel2.setBorder(new javax.swing.border.TitledBorder("Names"));
 lblClassName.setText("Class Name");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 jPanel2.add(lblClassName, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 jPanel2.add(txtClassName, gridBagConstraints);

 lblSuperClassName.setText("Super Class");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 jPanel2.add(lblSuperClassName, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 jPanel2.add(txtSuperClassName, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 1.0;
 jPanel1.add(jPanel2, gridBagConstraints);

 jPanel3.setLayout(new java.awt.GridBagLayout());

 jPanel3.setBorder(new javax.swing.border.TitledBorder("Version"));
 lblMagicNumber.setText("Magic Number");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 jPanel3.add(lblMagicNumber, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 jPanel3.add(txtMagicNumber, gridBagConstraints);

 lblMajorVersion.setText("Major Version");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 jPanel3.add(lblMajorVersion, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 jPanel3.add(txtMajorVersion, gridBagConstraints);

 lblMinorVersion.setText("Minor Version");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 jPanel3.add(lblMinorVersion, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 jPanel3.add(txtMinorVersion, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 1.0;
 jPanel1.add(jPanel3, gridBagConstraints);

 jPanel4.setLayout(new java.awt.GridLayout(2, 3));

 jPanel4.setBorder(new javax.swing.border.TitledBorder("Access"));
 chkFinal.setText("final");
 jPanel4.add(chkFinal);

 chkPublic.setText("public");
 jPanel4.add(chkPublic);

 chkInterface.setText("interface");
 jPanel4.add(chkInterface);

 chkSuper.setText("super");
 jPanel4.add(chkSuper);

 chkAbstract.setText("abstract");
 jPanel4.add(chkAbstract);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 1.0;
 jPanel1.add(jPanel4, gridBagConstraints);

 jPanel5.setBorder(new javax.swing.border.TitledBorder("Attributes"));
 btnShowEditAttribs.setText("Show/Edit Attributes");
 btnShowEditAttribs.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnShowEditAttribsActionPerformed(evt);
 }
 });

 jPanel5.add(btnShowEditAttribs);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 1.0;
 jPanel1.add(jPanel5, gridBagConstraints);

 jPanel6.setBorder(new javax.swing.border.TitledBorder("Property Changes"));
 btnDiscardChanges.setText("Discard");
 btnDiscardChanges.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnDiscardChangesActionPerformed(evt);
 }
 });

 jPanel6.add(btnDiscardChanges);

 btnAcceptChanges.setText("Accept");
 btnAcceptChanges.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnAcceptChangesActionPerformed(evt);
 }
 });

 jPanel6.add(btnAcceptChanges);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 1.0;
 jPanel1.add(jPanel6, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 1.0;
 add(jPanel1, gridBagConstraints);

 jPanel7.setLayout(new java.awt.GridBagLayout());

 jPanel7.setBorder(new javax.swing.border.TitledBorder("Interfaces"));
 treeInterfaces.setToolTipText("");
 treeInterfaces.setEditable(true);
 treeInterfaces.setRootVisible(false);
 treeInterfaces.addTreeSelectionListener(new javax.swing.event.TreeSelectionListener() {
 public void valueChanged(javax.swing.event.TreeSelectionEvent evt) {
 treeInterfacesValueChanged(evt);
 }
 });

 jScrollPane1.setViewportView(treeInterfaces);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.weighty = 1.0;
 jPanel7.add(jScrollPane1, gridBagConstraints);

 btnDeleteInterface.setIcon(new javax.swing.ImageIcon(getClass().getResource("/res/close1.gif")));
 btnDeleteInterface.setText("Delete");
 btnDeleteInterface.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnDeleteInterfaceActionPerformed(evt);
 }
 });

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
 jPanel7.add(btnDeleteInterface, gridBagConstraints);

 lblModifiedName.setText("Modified Name");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 jPanel7.add(lblModifiedName, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 jPanel7.add(txtNewInterfaceName, gridBagConstraints);

 btnModifyInterface.setText("Modify");
 btnModifyInterface.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnModifyInterfaceActionPerformed(evt);
 }
 });

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
 jPanel7.add(btnModifyInterface, gridBagConstraints);

 lblConstPoolIndex.setText("Constant Pool Index");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 gridBagConstraints.insets = new java.awt.Insets(0, 0, 0, 2);
 jPanel7.add(lblConstPoolIndex, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.weightx = 1.0;
 jPanel7.add(txtConstPoolIndex, gridBagConstraints);

 btnAddNewInterface.setText("Add New");
 btnAddNewInterface.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnAddNewInterfaceActionPerformed(evt);
 }
 });

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
 jPanel7.add(btnAddNewInterface, gridBagConstraints);

 txtHelpText.setWrapStyleWord(true);
 txtHelpText.setLineWrap(true);
 txtHelpText.setEditable(false);
 txtHelpText.setText("To remove an interface, select interface name from list and push the \"Delete\" button.\nTo modify an interface name, select interface name from list, modify it in the text field below and push the \"Modify\" button.\nTo add a new interface, enter a constant pool index of type ClassInfo in the text field and push the \"Add New\" botton.");
 txtHelpText.setBackground(new java.awt.Color(204, 204, 255));
 txtHelpText.setMargin(new java.awt.Insets(4, 4, 0, 0));
 txtHelpText.setRequestFocusEnabled(false);
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weighty = 0.25;
 jPanel7.add(txtHelpText, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.gridheight = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weightx = 1.0;
 gridBagConstraints.weighty = 1.0;
 add(jPanel7, gridBagConstraints);

 }//GEN-END:initComponents
 
 private void btnShowEditAttribsActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnShowEditAttribsActionPerformed
 if ((null == currClassFile) || (null == currClassFile.attributes)) {
 return;
 }
 
 AttributesDialog attribsDial = new AttributesDialog(AttributeTreeNode.getFrameFrom(this), true);
 attribsDial.setTitle("Class Attributes");
 attribsDial.setInput(currClassFile.attributes, currClassFile.constantPool, bEditable);
 attribsDial.show();
 }//GEN-LAST:event_btnShowEditAttribsActionPerformed
 
 private void btnDeleteInterfaceActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnDeleteInterfaceActionPerformed
 DefaultMutableTreeNode node = (DefaultMutableTreeNode)treeInterfaces.getLastSelectedPathComponent();
 if (node == null) return;
 DefaultTreeModel treeModel = (DefaultTreeModel)treeInterfaces.getModel();
 int iSelected = treeModel.getIndexOfChild(treeModel.getRoot(), node);
 if ( (null != currClassFile) && (iSelected >= 0) ) {
 deleteInterface(iSelected);
 }
 }//GEN-LAST:event_btnDeleteInterfaceActionPerformed
 
 private void btnAddNewInterfaceActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnAddNewInterfaceActionPerformed
 if (null == currClassFile) return;
 int iIndex;
 String sIndex = txtConstPoolIndex.getText();
 sIndex = sIndex.trim();
 if (sIndex.length() <= 0) return;
 try {
 iIndex = Integer.parseInt(sIndex);
 }
 catch(NumberFormatException nfe) {
 JOptionPane.showMessageDialog(null,
 "Constant pool index must be an integer greater than 0.",
 "Error", JOptionPane.ERROR_MESSAGE);
 return;
 }
 if (iIndex <= 0) return;
 ConstantPoolInfo cpClass = currClassFile.constantPool.getPoolInfo(iIndex);
 if(ConstantPoolInfo.CONSTANT_Class != cpClass.iTag) {
 JOptionPane.showMessageDialog(null,
 "Constant pool entry " + iIndex + " is not of type Class.",
 "Error", JOptionPane.ERROR_MESSAGE);
 return;
 }
 currClassFile.interfaces.addInterface(cpClass);
 refreshInterfaceList();
 }//GEN-LAST:event_btnAddNewInterfaceActionPerformed
 
 private void btnModifyInterfaceActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnModifyInterfaceActionPerformed
 DefaultMutableTreeNode node = (DefaultMutableTreeNode)treeInterfaces.getLastSelectedPathComponent();
 if (node == null) return;
 DefaultTreeModel treeModel = (DefaultTreeModel)treeInterfaces.getModel();
 int iSelected = treeModel.getIndexOfChild(treeModel.getRoot(), node);
 if ( (null != currClassFile) && (iSelected >= 0) ) {
 modifyInterfaceName(iSelected);
 }
 }//GEN-LAST:event_btnModifyInterfaceActionPerformed
 
 private void treeInterfacesValueChanged(javax.swing.event.TreeSelectionEvent evt) {//GEN-FIRST:event_treeInterfacesValueChanged
 DefaultMutableTreeNode node = (DefaultMutableTreeNode)treeInterfaces.getLastSelectedPathComponent();
 if (node == null) return;
 txtNewInterfaceName.setText((String)node.getUserObject());
 }//GEN-LAST:event_treeInterfacesValueChanged
 
 private void btnAcceptChangesActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnAcceptChangesActionPerformed
 saveChanges();
 }//GEN-LAST:event_btnAcceptChangesActionPerformed
 
 private void btnDiscardChangesActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnDiscardChangesActionPerformed
 refresh();
 }//GEN-LAST:event_btnDiscardChangesActionPerformed
 
 
 // Variables declaration - do not modify//GEN-BEGIN:variables
 private javax.swing.JButton btnAcceptChanges;
 private javax.swing.JButton btnAddNewInterface;
 private javax.swing.JButton btnDeleteInterface;
 private javax.swing.JButton btnDiscardChanges;
 private javax.swing.JButton btnModifyInterface;
 private javax.swing.JButton btnShowEditAttribs;
 private javax.swing.JCheckBox chkAbstract;
 private javax.swing.JCheckBox chkFinal;
 private javax.swing.JCheckBox chkInterface;
 private javax.swing.JCheckBox chkPublic;
 private javax.swing.JCheckBox chkSuper;
 private javax.swing.JPanel jPanel1;
 private javax.swing.JPanel jPanel2;
 private javax.swing.JPanel jPanel3;
 private javax.swing.JPanel jPanel4;
 private javax.swing.JPanel jPanel5;
 private javax.swing.JPanel jPanel6;
 private javax.swing.JPanel jPanel7;
 private javax.swing.JScrollPane jScrollPane1;
 private javax.swing.JLabel lblClassName;
 private javax.swing.JLabel lblConstPoolIndex;
 private javax.swing.JLabel lblMagicNumber;
 private javax.swing.JLabel lblMajorVersion;
 private javax.swing.JLabel lblMinorVersion;
 private javax.swing.JLabel lblModifiedName;
 private javax.swing.JLabel lblSuperClassName;
 private javax.swing.JTree treeInterfaces;
 private javax.swing.JTextField txtClassName;
 private javax.swing.JTextField txtConstPoolIndex;
 private javax.swing.JTextArea txtHelpText;
 private javax.swing.JTextField txtMagicNumber;
 private javax.swing.JTextField txtMajorVersion;
 private javax.swing.JTextField txtMinorVersion;
 private javax.swing.JTextField txtNewInterfaceName;
 private javax.swing.JTextField txtSuperClassName;
 // End of variables declaration//GEN-END:variables
 
}