/*
 * FieldsPropPane.java
 *
 * Created on September 30, 2001, 4:05 PM
 *
 * Modification Log:
 * 1.00 30th Sep 2001 Tanmay Original version.
 * 1.01 15th Jan 2002 Tanmay Implemented access flag editor dialog
 * 1.02 30th Jan 2002 Tanmay Moved out toggle modify button to main screen.
 * 1.03 02nd Feb 2002 Tanmay Moved over to new attributes dialog.
 * 1.04 23rd Mar 2002 Tanmay Corrected search behavior where all searches after
 * a failed search also failed till the table 
 * selection was changed manually.
 *-----------------------------------------------------------------------------------------
 * 10th Sep 2003 Tanmay Moved to SourceForge (http://classeditor.sourceforge.net)
 *-----------------------------------------------------------------------------------------
 */

package gui;

import classfile.ClassFile;
import classfile.FieldInfo;
import classfile.AccessFlags;
import classfile.ConstantPoolInfo;
import classfile.attributes.Attributes;
import classfile.Utils;
import gui.attributes.*;
import guihelper.*;
import javax.swing.*;
import javax.swing.table.TableColumn;

/** This class displays the table model for the fields list.
 * <br><br>
 *
 * @author 	Tanmay K. Mohapatra
 * @version 1.04, 23rd Mar, 2002
 */
public class FieldsPropPane extends javax.swing.JPanel {
 private ClassFile currClassFile;
 private int iPrevFld = -1;
 private boolean bEditable;

 public void setModifyMode(boolean bEditableIn) {
 bEditable = bEditableIn;
 FieldTableModel thisModel = (FieldTableModel)tblField.getModel();
 thisModel.setEditable(bEditable);
 btnAddFld.setEnabled(bEditable);
 btnDelFld.setEnabled(bEditable);
 }
 
 void clear() {
 iPrevFld = -1;
 tblField.setModel(new FieldTableModel(null));
 lblNumFldAttribs.setText("");
 }
 
 void refresh(){
 clear();
 if(null == currClassFile) return;
 
 TableColumn thisCol;
 FieldTableModel thisModel = new FieldTableModel(currClassFile);
 thisModel.setEditable(bEditable);
 tblField.setModel(thisModel);
 thisModel.setCellEditors(tblField);

 thisCol = tblField.getColumnModel().getColumn(0);
 thisCol.setPreferredWidth(30);
 thisCol.setMaxWidth(80);

 thisCol = tblField.getColumnModel().getColumn(1);
 thisCol.setPreferredWidth(200);
 thisCol.setMaxWidth(400);
 
 thisCol = tblField.getColumnModel().getColumn(2);
 thisCol.setPreferredWidth(200);
 thisCol.setMaxWidth(400);

 thisCol = tblField.getColumnModel().getColumn(3);
 thisCol.setPreferredWidth(200);
 thisCol.setMaxWidth(400);
 
 tblField.changeSelection(0, 1, false, false);
 }
 
 void setClassFile(ClassFile classFile) {
 currClassFile = classFile;
 }
 
 /** Creates new form FieldsPropPane */
 public FieldsPropPane() {
 initComponents();
 }
 
 private void searchField() {
 if (null == currClassFile) return;
 String sSrchStr = txtFldSearch.getText().trim();
 if (sSrchStr.length() <= 0) return;
 if(-1 == iPrevFld) return;

 FieldTableModel tblModel = (FieldTableModel)tblField.getModel();
 int iPrevFldNew = tblModel.nextIndex(iPrevFld+1, sSrchStr);
 if(iPrevFldNew >= 0) {
 iPrevFld = iPrevFldNew;
 tblField.changeSelection(iPrevFld, 1, false, false);
 }
 }
 
 private void tblFieldValueChanged(javax.swing.event.ListSelectionEvent evt) {
 if(evt.getValueIsAdjusting()) return;
 if((null == currClassFile) || (null == currClassFile.fields) || 
 (currClassFile.fields.getFieldsCount() == 0)) {
 iPrevFld = -1;
 return;
 }
 int iSelectedRow = tblField.getSelectedRow();
 if(0 > iSelectedRow) {
 iPrevFld = -1;
 return;
 }
 
 iPrevFld = iSelectedRow;
 FieldInfo thisFld = currClassFile.fields.getField(iSelectedRow);
 lblNumFldAttribs.setText(Integer.toString((null != thisFld.attributes) ? thisFld.attributes.getAttribCount() : 0)); 
 }
 
 /** 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;

 jScrollPane1 = new javax.swing.JScrollPane();
 tblField = new javax.swing.JTable();
 tblField.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 ListSelectionModel tblSM = tblField.getSelectionModel();
 tblSM.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
 public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
 tblFieldValueChanged(evt);
 }
 });
 srchPanel = new javax.swing.JPanel();
 jTextArea2 = new javax.swing.JTextArea();
 txtFldSearch = new javax.swing.JTextField();
 btnFldSearch = new javax.swing.JButton();
 attribPanel = new javax.swing.JPanel();
 jLabel5 = new javax.swing.JLabel();
 lblNumFldAttribs = new javax.swing.JLabel();
 btnShowFldAttribs = new javax.swing.JButton();
 editPanel = new javax.swing.JPanel();
 btnAddFld = new javax.swing.JButton();
 btnDelFld = new javax.swing.JButton();

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

 jScrollPane1.setAutoscrolls(true);
 tblField.setModel(new FieldTableModel(null));
 tblField.setShowHorizontalLines(false);
 jScrollPane1.setViewportView(tblField);

 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;
 add(jScrollPane1, gridBagConstraints);

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

 srchPanel.setBorder(new javax.swing.border.TitledBorder("Search"));
 jTextArea2.setText("Enter search string below and press Find \nto search from the current position");
 jTextArea2.setBackground(new java.awt.Color(204, 204, 255));
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.weighty = 1.0;
 srchPanel.add(jTextArea2, gridBagConstraints);

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

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 srchPanel.add(txtFldSearch, gridBagConstraints);

 btnFldSearch.setText("Find/Find Next");
 btnFldSearch.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnFldSearchActionPerformed(evt);
 }
 });

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

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
 gridBagConstraints.weightx = 1.0;
 add(srchPanel, gridBagConstraints);

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

 attribPanel.setBorder(new javax.swing.border.TitledBorder("Field Attributes"));
 jLabel5.setText("Number of Attributes");
 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 attribPanel.add(jLabel5, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 attribPanel.add(lblNumFldAttribs, gridBagConstraints);

 btnShowFldAttribs.setText("Show/Edit");
 btnShowFldAttribs.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnShowFldAttribsActionPerformed(evt);
 }
 });

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
 gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
 attribPanel.add(btnShowFldAttribs, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weightx = 0.5;
 add(attribPanel, gridBagConstraints);

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

 editPanel.setBorder(new javax.swing.border.TitledBorder("Edit"));
 btnAddFld.setText("Add New");
 btnAddFld.setEnabled(false);
 btnAddFld.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnAddFldActionPerformed(evt);
 }
 });

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.RELATIVE;
 editPanel.add(btnAddFld, gridBagConstraints);

 btnDelFld.setText("Delete");
 btnDelFld.setEnabled(false);
 btnDelFld.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 btnDelFldActionPerformed(evt);
 }
 });

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
 editPanel.add(btnDelFld, gridBagConstraints);

 gridBagConstraints = new java.awt.GridBagConstraints();
 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
 gridBagConstraints.weightx = 0.5;
 add(editPanel, gridBagConstraints);

 }//GEN-END:initComponents

 private void btnShowFldAttribsActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnShowFldAttribsActionPerformed
 if (null == currClassFile) return;
 if(-1 == iPrevFld) return;
 FieldInfo fldInfo = currClassFile.fields.getField(iPrevFld);
 if (null == fldInfo) return;
 Attributes attrs = fldInfo.attributes;
 if (null == attrs) return;
 AttributesDialog attribsDial = new AttributesDialog(AttributeTreeNode.getFrameFrom(this), true);
 attribsDial.setTitle("Field Attributes");
 attribsDial.setInput(attrs, currClassFile.constantPool, bEditable);
 attribsDial.show();
 }//GEN-LAST:event_btnShowFldAttribsActionPerformed
 
 private void btnDelFldActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnDelFldActionPerformed
 if (-1 == iPrevFld) return;
 
 int iConfirm;

 // delete the prev fld
 FieldInfo thisFld = currClassFile.fields.getField(iPrevFld);
 String sFldStr = thisFld.accessFlags.toString() + " " +
 thisFld.getFieldDescriptor() + " " +
 thisFld.cpName.sUTFStr;
 iConfirm = JOptionPane.showConfirmDialog(null,
 "Are you sure you want to delete the field\n" + sFldStr + "?",
 "Confirm Delete", JOptionPane.YES_NO_OPTION);
 if(JOptionPane.YES_OPTION == iConfirm) {
 currClassFile.fields.deleteField(iPrevFld);
 refresh();
 }
 }//GEN-LAST:event_btnDelFldActionPerformed
 
 private void btnAddFldActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnAddFldActionPerformed
 if (null == currClassFile) return;

 ((FieldTableModel)tblField.getModel()).addNewField();
 refresh();
 tblField.changeSelection(tblField.getModel().getRowCount()-1, 1, false, false);
 }//GEN-LAST:event_btnAddFldActionPerformed
 
 private void txtFldSearchActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_txtFldSearchActionPerformed
 searchField();
 }//GEN-LAST:event_txtFldSearchActionPerformed
 
 private void btnFldSearchActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnFldSearchActionPerformed
 searchField();
 }//GEN-LAST:event_btnFldSearchActionPerformed
 
 
 // Variables declaration - do not modify//GEN-BEGIN:variables
 private javax.swing.JPanel attribPanel;
 private javax.swing.JButton btnAddFld;
 private javax.swing.JButton btnDelFld;
 private javax.swing.JButton btnFldSearch;
 private javax.swing.JButton btnShowFldAttribs;
 private javax.swing.JPanel editPanel;
 private javax.swing.JLabel jLabel5;
 private javax.swing.JScrollPane jScrollPane1;
 private javax.swing.JTextArea jTextArea2;
 private javax.swing.JLabel lblNumFldAttribs;
 private javax.swing.JPanel srchPanel;
 private javax.swing.JTable tblField;
 private javax.swing.JTextField txtFldSearch;
 // End of variables declaration//GEN-END:variables
}