/*
 * Copyright 2004,2005 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */

package org.apache.axis2.tool.codegen.eclipse.ui;

import java.util.Iterator;
import java.util.Map;

import javax.wsdl.WSDLException;
import javax.xml.namespace.QName;

import org.apache.axis2.tool.codegen.eclipse.plugin.CodegenWizardPlugin;
import org.apache.axis2.tool.codegen.eclipse.util.UIConstants;
import org.apache.axis2.tool.codegen.eclipse.util.WSDLPropertyReader;
import org.apache.axis2.util.URLProcessor;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

/**
 * Options Page lets the user change general settings on the code generation. It
 * is used in the CodegenWizardPlugin, CodeGenWizard.
 * 
 */
public class OptionsPage extends AbstractWizardPage implements UIConstants {

	/**
	 * Selection list for target languages
	 */
	private Combo languageSelectionComboBox;

	/**
	 * A radio button to enable/disable code generation for synchronous and
	 * asynchronous calls.
	 */
	private Button syncAndAsyncRadioButton;

	/**
	 * A radio button to choose "synchronous only" code generation
	 */
	private Button syncOnlyRadioButton;

	/**
	 * A radio button to choose "asynchronous only" code generation
	 */
	private Button asyncOnlyRadioButton;

	/**
	 * Label holding the full qualified package name for generated code
	 */
	private Text packageText;

	/**
	 * Checkbox to enable server-side skeleton code generation. If enabled,
	 * generates an empty implementation of the service
	 */
	private Button serverSideCheckBoxButton;
	
	/**
	 * Checkbox to enable client side code generation. If enabled,
	 * generates an empty implementation of the service
	 */
	private Button clientSideCheckBoxButton;

	/**
	 * Checkbox to enable the generation of test case classes for the generated
	 * implementation of the webservice.
	 */
	private Button testCaseCheckBoxButton;

	/**
	 * Checkbox to enable the generation of a default server.xml configuration
	 * file
	 */
	private Button serverXMLCheckBoxButton;

	/**
	 * Checkbox to enable the generate all classes
	 */
	private Button generateAllCheckBoxButton;
	
	/**
	 *  check box for server side interface
	 */
	private Button generateServerSideInterfaceCheckBoxButton;

	private Combo databindingTypeCombo;

	/**
	 * Text box to have the portname
	 */
	private Combo portNameCombo;

	/**
	 * Text box to have the service name
	 */
	private Combo serviceNameCombo;

	private WSDLPropertyReader reader;

	private java.util.List serviceQNameList = null;
	
	private final int EDITABLECOLUMN = 1;
	
	private String defaultPackageName = null;
	
	private Combo codegenOptionSelectionComboBox;
	
	/**
	 * A table to keep the namespace to 
	 * package mappings
	 */
	private Table namespace2packageTable = null;
	
	Composite container;

	/**
	 * Creates the page and initialize some settings
	 */
	public OptionsPage() {
		super("page2");
	}

	/**
	 * Sets the default values for the Options page
	 * 
	 */
	protected void initializeDefaultSettings() {
		settings.put(PREF_CHECK_GENERATE_SERVERCONFIG, false);
		settings.put(PREF_CHECK_GENERATE_SERVERSIDE, false);
		settings.put(PREF_CHECK_GENERATE_TESTCASE, false);
		settings.put(PREF_LANGUAGE_INDEX, 0);
		settings.put(PREF_PACKAGE_NAME, DEFAULT_PACKAGENAME);
		settings.put(PREF_RADIO_ASYNC_ONLY, false);
		settings.put(PREF_RADIO_SYNC_AND_ASYNC, true);
		settings.put(PREF_RADIO_SYNC_ONLY, false);
		settings.put(PREF_COMBO_PORTNAME_INDEX, 0);
		settings.put(PREF_COMBO_SERVICENAME_INDEX, 0);
		settings.put(PREF_DATABINDER_INDEX, 0);
		settings.put(PREF_GEN_ALL, false);
		settings.put(PREF_GEN_SS_INTERFACE, false);
	}


	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
	 */
	public void createControl(Composite parent) {

		container = new Composite(parent, SWT.NULL);
		GridLayout layout = new GridLayout();
		container.setLayout(layout);
		layout.numColumns = 3;
		GridData gd = new GridData(GridData.FILL_HORIZONTAL);

	    Label label = new Label(container, SWT.NULL);
	    label.setText(CodegenWizardPlugin.getResourceString("page2.options.desc"));
	    label.setLayoutData(gd);
	    
	        
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;

		codegenOptionSelectionComboBox = new Combo(container, SWT.DROP_DOWN| SWT.BORDER | SWT.READ_ONLY);
		// fill the combo
		this.fillCodegenOptionSelectionComboBox();
		codegenOptionSelectionComboBox.setLayoutData(gd);
		settings.put(PREF_CODEGEN_OPTION_INDEX, codegenOptionSelectionComboBox
				.getSelectionIndex());
		codegenOptionSelectionComboBox.select(settings.getInt(PREF_CODEGEN_OPTION_INDEX));
		codegenOptionSelectionComboBox.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_CODEGEN_OPTION_INDEX, codegenOptionSelectionComboBox
						.getSelectionIndex());
				if (codegenOptionSelectionComboBox
						.getSelectionIndex() == 0 ){
					disableControls();
					
				}else if (codegenOptionSelectionComboBox
						.getSelectionIndex() == 1){
					enableControls();
				}
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
			
			
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;

		Label label1 = new Label(container, SWT.NULL);
		label1.setText(CodegenWizardPlugin
				.getResourceString("page2.language.caption"));

		languageSelectionComboBox = new Combo(container, SWT.DROP_DOWN| SWT.BORDER | SWT.READ_ONLY);
		// fill the combo
		this.fillLanguageCombo();
		languageSelectionComboBox.setLayoutData(gd);
		languageSelectionComboBox.select(settings.getInt(PREF_LANGUAGE_INDEX));
		languageSelectionComboBox.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_LANGUAGE_INDEX, languageSelectionComboBox
						.getSelectionIndex());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		// service name
		label = new Label(container, SWT.NULL);
		label.setText(CodegenWizardPlugin
				.getResourceString("page2.serviceName.caption"));

		serviceNameCombo = new Combo(container, SWT.DROP_DOWN | SWT.BORDER
				| SWT.READ_ONLY);
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;
		serviceNameCombo.setLayoutData(gd);
		// serviceNameCombo.setText(settings.get(PREF_TEXT_SERVICENAME));
		serviceNameCombo.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				// update the settings
				settings.put(PREF_COMBO_SERVICENAME_INDEX, serviceNameCombo
						.getSelectionIndex());
				// reload the portName list
				loadPortNames();

			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});

		// port name
		label = new Label(container, SWT.NULL);
		label.setText(CodegenWizardPlugin
				.getResourceString("page2.portName.caption"));
		portNameCombo = new Combo(container, SWT.DROP_DOWN | SWT.BORDER
				| SWT.READ_ONLY);
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;
		portNameCombo.setLayoutData(gd);

		portNameCombo.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				// do something here
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		// Databinding
		label = new Label(container, SWT.NULL);
		label.setText(CodegenWizardPlugin
				.getResourceString("page2.databindingCheck.caption"));

		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;
		databindingTypeCombo = new Combo(container, SWT.DROP_DOWN | SWT.BORDER
				| SWT.READ_ONLY);
		databindingTypeCombo.setLayoutData(gd);
		fillDatabinderCombo();
		databindingTypeCombo.select(settings.getInt(PREF_DATABINDER_INDEX));
		databindingTypeCombo.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_DATABINDER_INDEX, databindingTypeCombo
						.getSelectionIndex());

			};

			public void widgetDefaultSelected(SelectionEvent e) {
			};
		});
		
		// package name
		label = new Label(container, SWT.NULL);
		label.setText(CodegenWizardPlugin
				.getResourceString("page2.package.caption"));
		packageText = new Text(container, SWT.BORDER);
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;

		packageText.setLayoutData(gd);
		String packageName;
		String storedPackageName = settings.get(PREF_PACKAGE_NAME);
		this.defaultPackageName = storedPackageName;
		if (storedPackageName.equals("")) {
			packageName = URLProcessor.makePackageName("");
		} else {
			packageName = storedPackageName;
		}
		
		//if the package name somehow turned out to be null set it to 
		//default package
		if (packageName==null)packageName=URLProcessor.DEFAULT_PACKAGE;
		
		packageText.setText(packageName); // get this text from the
		// URLProcessor
		packageText.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				handleCustomPackageNameModifyEvent();
				settings.put(PREF_PACKAGE_NAME, packageText.getText());
			}
		});
		
		
		// generate test case option
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		testCaseCheckBoxButton = new Button(container, SWT.CHECK);
		testCaseCheckBoxButton.setLayoutData(gd);
		testCaseCheckBoxButton
				.setText(org.apache.axis2.tool.codegen.eclipse.plugin.CodegenWizardPlugin
						.getResourceString("page2.testcase.caption"));
		testCaseCheckBoxButton.setSelection(settings
				.getBoolean(PREF_CHECK_GENERATE_TESTCASE));
		testCaseCheckBoxButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_CHECK_GENERATE_TESTCASE,
						testCaseCheckBoxButton.getSelection());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		//filling label 
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		Label fillLabel = new Label(container, SWT.HORIZONTAL | SWT.SEPARATOR);
		fillLabel.setLayoutData(gd);

		//cleint side label 
//		gd = new GridData(GridData.FILL_HORIZONTAL);
//		gd.horizontalSpan = 3;
//		Label lblClientside = new Label(container, SWT.NONE);
//		lblClientside.setText(CodegenWizardPlugin
//				.getResourceString("page2.clientside.caption"));
//		lblClientside.setLayoutData(gd);
		
		//cleint side label 
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		clientSideCheckBoxButton = new Button(container, SWT.CHECK);
		clientSideCheckBoxButton.setLayoutData(gd);
		clientSideCheckBoxButton.setText(CodegenWizardPlugin
				.getResourceString("page2.clientside.caption"));
		clientSideCheckBoxButton.setSelection(settings
				.getBoolean(PREF_CHECK_GENERATE_CLIENTSIDE));
		clientSideCheckBoxButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				handleClientsideSelection();
				settings.put(PREF_CHECK_GENERATE_CLIENTSIDE,
						clientSideCheckBoxButton.getSelection());
			}
			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		

		//client side buttons
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 1;
		syncAndAsyncRadioButton = new Button(container, SWT.RADIO);
		syncAndAsyncRadioButton.setLayoutData(gd);
		syncAndAsyncRadioButton.setText(CodegenWizardPlugin
				.getResourceString("page2.syncAsync.caption"));
		syncAndAsyncRadioButton.setSelection(settings
				.getBoolean(PREF_RADIO_SYNC_AND_ASYNC));
		syncAndAsyncRadioButton.setVisible(true);
		syncAndAsyncRadioButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_RADIO_SYNC_AND_ASYNC, syncAndAsyncRadioButton
						.getSelection());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 1;
		syncOnlyRadioButton = new Button(container, SWT.RADIO);
		syncOnlyRadioButton.setLayoutData(gd);
		syncOnlyRadioButton.setText(CodegenWizardPlugin
				.getResourceString("page2.sync.caption"));
		syncOnlyRadioButton.setSelection(settings
				.getBoolean(PREF_RADIO_SYNC_ONLY));
		syncOnlyRadioButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_RADIO_SYNC_ONLY, syncOnlyRadioButton
						.getSelection());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});

		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 1;
		asyncOnlyRadioButton = new Button(container, SWT.RADIO);
		asyncOnlyRadioButton.setLayoutData(gd);
		asyncOnlyRadioButton
				.setText(org.apache.axis2.tool.codegen.eclipse.plugin.CodegenWizardPlugin
						.getResourceString("page2.async.caption"));
		asyncOnlyRadioButton.setSelection(settings
				.getBoolean(PREF_RADIO_ASYNC_ONLY));
		asyncOnlyRadioButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_RADIO_ASYNC_ONLY, asyncOnlyRadioButton
						.getSelection());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		//filling label 
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		Label fillLabel1 = new Label(container, SWT.HORIZONTAL | SWT.SEPARATOR);
		fillLabel1.setLayoutData(gd);
		
		
		// Server side check box
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		serverSideCheckBoxButton = new Button(container, SWT.CHECK);
		serverSideCheckBoxButton.setLayoutData(gd);
		serverSideCheckBoxButton.setText(CodegenWizardPlugin
				.getResourceString("page2.serverside.caption"));
		serverSideCheckBoxButton.setSelection(settings
				.getBoolean(PREF_CHECK_GENERATE_SERVERSIDE));
		serverSideCheckBoxButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				handleServersideSelection();
				settings.put(PREF_CHECK_GENERATE_SERVERSIDE,
						serverSideCheckBoxButton.getSelection());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});

		// Server side services xml
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 1;
		serverXMLCheckBoxButton = new Button(container, SWT.CHECK);
		serverXMLCheckBoxButton.setLayoutData(gd);
		serverXMLCheckBoxButton.setSelection(settings
				.getBoolean(PREF_CHECK_GENERATE_SERVERCONFIG));
		serverXMLCheckBoxButton.setText(CodegenWizardPlugin
				.getResourceString("page2.serviceXML.caption"));
		serverXMLCheckBoxButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_CHECK_GENERATE_SERVERCONFIG,
						serverXMLCheckBoxButton.getEnabled());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});


		//the server side interface option
		generateServerSideInterfaceCheckBoxButton = new Button(container, SWT.CHECK);
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 1;
		generateServerSideInterfaceCheckBoxButton.setLayoutData(gd);
		generateServerSideInterfaceCheckBoxButton.setSelection(settings
				.getBoolean(PREF_GEN_SS_INTERFACE));
		generateServerSideInterfaceCheckBoxButton.setText(CodegenWizardPlugin
				.getResourceString("page2.ssInterface.caption"));
		generateServerSideInterfaceCheckBoxButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_GEN_SS_INTERFACE, generateServerSideInterfaceCheckBoxButton
						.getSelection());
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		
		//filling label 
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		Label fillLabel2 = new Label(container, SWT.HORIZONTAL | SWT.SEPARATOR);
		fillLabel2.setLayoutData(gd);
		
		// generate all
		generateAllCheckBoxButton = new Button(container, SWT.CHECK);
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		generateAllCheckBoxButton.setLayoutData(gd);
		generateAllCheckBoxButton.setSelection(settings
				.getBoolean(PREF_GEN_ALL));
		generateAllCheckBoxButton.setText(CodegenWizardPlugin
				.getResourceString("page2.genAll.caption"));
		generateAllCheckBoxButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				settings.put(PREF_GEN_ALL, generateAllCheckBoxButton
						.getSelection());
				handleGenerateAllSelection();
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		
		//filling label 
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 3;
		Label fillLabel3 = new Label(container, SWT.HORIZONTAL | SWT.SEPARATOR);
		fillLabel3.setLayoutData(gd);

		//		 Databinding
		label = new Label(container, SWT.NULL);
		label.setText(CodegenWizardPlugin
				.getResourceString("page2.namespace2Pkg.caption"));
		
		//add a table to set namespace to package mapping
		gd = new GridData(GridData.FILL_BOTH);
        gd.horizontalSpan = 3;
        gd.verticalSpan = 5;
        
        namespace2packageTable = new Table(container,SWT.BORDER|SWT.MULTI);
        namespace2packageTable.setLinesVisible(true);
        namespace2packageTable.setHeaderVisible(true); 
        namespace2packageTable.setEnabled(true);
        namespace2packageTable.setLayoutData(gd);
       
        declareColumn(namespace2packageTable,
        		350, //a default width until we adjust
        		CodegenWizardPlugin
				.getResourceString("page2.namespace.caption"));
        declareColumn(namespace2packageTable,
        		200,//a default width until we adjust
        		CodegenWizardPlugin
				.getResourceString("page2.package.caption"));
        
        namespace2packageTable.setVisible(true);
        
        // add the table editor
        final TableEditor editor = new TableEditor(namespace2packageTable);
        editor.setColumn(1);
        editor.horizontalAlignment = SWT.LEFT;
        editor.grabHorizontal = true;
        //This is the cute way of making the namespaces columns editable
        namespace2packageTable.addListener(SWT.MouseDown, new Listener() {
            public void handleEvent(Event event) {
              Rectangle clientArea = namespace2packageTable.getClientArea();
              Point pt = new Point(event.x, event.y);
              int index = namespace2packageTable.getTopIndex();
              while (index < namespace2packageTable.getItemCount()) {
                boolean visible = false;
                final TableItem item = namespace2packageTable.getItem(index);
                for (int i = 0; i < namespace2packageTable.getColumnCount(); i++) {
                  Rectangle rect = item.getBounds(i);
                  if (rect.contains(pt)) {
                    final int column = i;
                    final Text text = new Text(namespace2packageTable, SWT.NONE);
                    Listener textListener = new Listener() {
                      public void handleEvent(final Event e) {
                        switch (e.type) {
                        case SWT.FocusOut:
                          item.setText(column, text.getText());
                          text.dispose();
                          break;
                        case SWT.Traverse:
                          switch (e.detail) {
                          case SWT.TRAVERSE_RETURN:
                            item
                                .setText(column, text
                                    .getText());
                          // FALL THROUGH
                          case SWT.TRAVERSE_ESCAPE:
                            text.dispose();
                            e.doit = false;
                          }
                          break;
                        }
                      }
                    };
                    text.addListener(SWT.FocusOut, textListener);
                    text.addListener(SWT.Traverse, textListener);
                    editor.setEditor(text, item, i);
                    text.setText(item.getText(i));
                    text.selectAll();
                    text.setFocus();
                    return;
                  }
                  if (!visible && rect.intersects(clientArea)) {
                    visible = true;
                  }
                }
                if (!visible)
                  return;
                index++;
              }
            }
          });
       
        
        //adjust the width
        //adjustColumnWidth(namespace2packageTable);
       
		/*
		 * Check the state of server-side selection, so we can enable/disable
		 * the serverXML checkbox button.
		 */
		handleServersideSelection();
		/*
		 * try populating the combos and other information from the WSDL if this
		 * is restored
		 */
		if (restoredFromPreviousSettings) {
			populateParamsFromWSDL();
			selectDefaults();
		}
		
		//first appearence Disable all the controls 
		disableControls();
		
		
		setControl(container);

		setPageComplete(true);

	}

//	/**
//	 * Adjust the column widths
//	 * @param table
//	 */
//	private void adjustColumnWidth(Table table){
//		 Point p = namespace2packageTable.computeSize(SWT.DEFAULT, SWT.DEFAULT);
//	     int columns = table.getColumnCount();
//	     for (int i=0;i<columns;i++){
//	    	 table.getColumn(i).setWidth(p.x/columns);
//	     }
//	}
	/**
	 * A util method to create a new column
	 * @param table
	 * @param width
	 * @param colName
	 */
	private void declareColumn(Table table, int width,String colName){
        TableColumn column = new TableColumn(table,SWT.NONE);
        column.setWidth(width);
        column.setText(colName);
    }
	
	private void selectDefaults() {
		serviceNameCombo.select(settings.getInt(PREF_COMBO_SERVICENAME_INDEX));
		// ports need to be renamed in order for correct default selection
		loadPortNames();
		portNameCombo.select(settings.getInt(PREF_COMBO_SERVICENAME_INDEX));
	}

	private void populatePackageName() {
		this.packageText.setText(reader.packageFromTargetNamespace());
	}

	/**
	 * populate the service and the port from the WSDL this needs to be public
	 * since the WSDLselection page may call this
	 */
	public void populateParamsFromWSDL() {
		if (reader == null)
			reader = new WSDLPropertyReader();
		try {
			String lname = getCodegenWizard().getWSDLname();
			if (!"".equals(lname.trim())) {
				
				reader.readWSDL(lname);

				// enable the combo's
				setComboBoxEnable(true);

				this.serviceQNameList = reader.getServiceList();
				if (!serviceQNameList.isEmpty()) {
					serviceNameCombo.removeAll();
					for (int i = 0; i < serviceQNameList.size(); i++) {
						// add the local part of the
						serviceNameCombo.add(((QName) serviceQNameList.get(i))
								.getLocalPart());
					}
					;
					// select the first one as the default
					serviceNameCombo.select(0);

					// load the ports
					loadPortNames();

					updateStatus(null);
				} else {
					// service name list being empty means we are switching to
					// the interface mode
					if (serviceNameCombo!=null) serviceNameCombo.removeAll();
					if (portNameCombo!=null) portNameCombo.removeAll();
					// disable the combo's
					setComboBoxEnable(false);
					//this is not an error
					updateStatus(null);
			
				}

				populatePackageName();
				
				//populate the namespacess
			    loadNamespaces(reader.getDefinitionNamespaceMap());
			}
		} catch (WSDLException e) {
			// disable the combo's
			setComboBoxEnable(false);
			updateStatus(CodegenWizardPlugin
					.getResourceString("page2.wsdlInvalid.message"));
		}
		catch (Exception e) {
			// disable the combo's
			setComboBoxEnable(false);
			updateStatus(CodegenWizardPlugin
					.getResourceString("page2.wsdlNotFound.message"));
		}

	}

	private void loadPortNames() {
		int selectionIndex = serviceNameCombo.getSelectionIndex();
		if (selectionIndex != -1) {
			java.util.List ports = reader.getPortNameList((QName) serviceQNameList
					.get(selectionIndex));
			if (!ports.isEmpty()) {
				portNameCombo.removeAll();
				for (int i = 0; i < ports.size(); i++) {
					// add the local part of the
					portNameCombo.add(ports.get(i).toString());
				}
				updateStatus(null);
				portNameCombo.select(0);
			} else {
				updateStatus(CodegenWizardPlugin
						.getResourceString("page2.noports.message"));// TODO
			}
		}
	}

	private void setComboBoxEnable(boolean b) {
		if (serviceNameCombo != null) {
			serviceNameCombo.setEnabled(b);
			portNameCombo.setEnabled(b);
		}
	}

	/**
	 * Loads the namespaces
	 * @param namespaceMap
	 */
	private void loadNamespaces(Map namespaceMap){
		Iterator namespaces = namespaceMap.values().iterator();
		namespace2packageTable.removeAll();
        TableItem[] items = new TableItem[namespaceMap.size()]; // An item for each field
        
        int i = 0;
        while(namespaces.hasNext()){
        	
           items[i] = new TableItem(namespace2packageTable, SWT.NULL);
           String namespace = (String)namespaces.next();
           items[i].setText(0,namespace);
           items[i].setText(1,getPackageFromNamespace(namespace));
           i++;
        }

        namespace2packageTable.setVisible(true);
		
	}
	
	/**
	 * Fill the combo with proper databinding names
	 * 
	 */
	private void fillDatabinderCombo() {

		databindingTypeCombo.add(DATA_BINDING_ADB);
		databindingTypeCombo.add(DATA_BINDING_XMLBEANS);
		//databindingTypeCombo.add(DATA_BINDING_JIBX);
		//databindingTypeCombo.add(DATA_BINDING_JAXME);
		databindingTypeCombo.add(DATA_BINDING_NONE);

	}

	/**
	 * Fill the combo with proper language names
	 * 
	 */
	private void fillLanguageCombo() {

		languageSelectionComboBox.add(JAVA);
		//since we have not looked at C# support seriously
		//for a long time, we'll just leave it out
		//languageSelectionComboBox.add(C_SHARP);

		languageSelectionComboBox.select(0);
	}
	
	/**
	 * Fill the combo with properoption selection
	 * 
	 */
	private void fillCodegenOptionSelectionComboBox() {
		codegenOptionSelectionComboBox.add(DEFAULT);
		codegenOptionSelectionComboBox.add(CUSTOM);
		codegenOptionSelectionComboBox.select(0);
	}


	/**
	 * Validates the status of the server-side checkbox, and enables/disables
	 * the generation checkbox for XML configuration file
	 */
	private void handleServersideSelection() {
		if (this.serverSideCheckBoxButton.getSelection()) {
			settings.put(PREF_CHECK_GENERATE_SERVERSIDE, serverSideCheckBoxButton
					.getSelection());
			this.serverXMLCheckBoxButton.setEnabled(true);
			//this.generateAllCheckBoxButton.setEnabled(true);
			this.generateServerSideInterfaceCheckBoxButton.setEnabled(true);
			if(clientSideCheckBoxButton.getSelection()==true 
					|| generateAllCheckBoxButton.getSelection() == true){
				uncheckClientSide();
				uncheckGenerateAll();
				serverSideCheckBoxButton.setSelection(true);
				settings.put(PREF_CHECK_GENERATE_SERVERSIDE, serverSideCheckBoxButton
						.getSelection());
			}
			this.syncAndAsyncRadioButton.setSelection(false);
			this.asyncOnlyRadioButton.setSelection(false);
			this.syncOnlyRadioButton.setSelection(false);
			//earlier existing code (This only set focus false)
			this.syncAndAsyncRadioButton.setEnabled(false);
			this.asyncOnlyRadioButton.setEnabled(false);
			this.syncOnlyRadioButton.setEnabled(false);
			this.testCaseCheckBoxButton.setEnabled(false);
			this.testCaseCheckBoxButton.setSelection(false);

		} 
			else {
//			//added this to increase the UI features (this will deselct all the selected features)
//			this.serverXMLCheckBoxButton.setSelection(false);
//			//this.generateAllCheckBoxButton.setSelection(false);
//			this.generateServerSideInterfaceCheckBoxButton.setSelection(false);
//			//earlier existing code (This only set focus false)
//			this.serverXMLCheckBoxButton.setEnabled(false);
//			//this.generateAllCheckBoxButton.setEnabled(false);
//			this.generateServerSideInterfaceCheckBoxButton.setEnabled(false);
			if(clientSideCheckBoxButton.getSelection()==false 
					&& generateAllCheckBoxButton.getSelection() == false){
				serverSideCheckBoxButton.setSelection(true);
				settings.put(PREF_CHECK_GENERATE_SERVERSIDE, serverSideCheckBoxButton
						.getSelection());
			}
		}
	}
	
	/**
	 * Validates the status of the client-side checkbox, and enables/disables
	 * the generation checkbox for XML configuration file
	 */
	private void handleClientsideSelection() {
		if (this.clientSideCheckBoxButton.getSelection()) {
			this.syncAndAsyncRadioButton.setSelection(true);
			this.syncAndAsyncRadioButton.setEnabled(true);
			this.asyncOnlyRadioButton.setEnabled(true);
			this.syncOnlyRadioButton.setEnabled(true);
			if(serverSideCheckBoxButton.getSelection()==true 
					|| generateAllCheckBoxButton.getSelection() == true){
				clientSideCheckBoxButton.setSelection(true);
				settings.put(PREF_CHECK_GENERATE_CLIENTSIDE, clientSideCheckBoxButton
						.getSelection());
				uncheckServerSide();
				uncheckGenerateAll();
			}
			this.serverXMLCheckBoxButton.setEnabled(false);
			this.serverXMLCheckBoxButton.setSelection(false);
			this.generateServerSideInterfaceCheckBoxButton.setEnabled(false);
			this.generateServerSideInterfaceCheckBoxButton.setSelection(false);
			this.testCaseCheckBoxButton.setEnabled(true);
		}
		else {
			//added this to increase the UI features (this will deselct all the selected features)
//			this.syncAndAsyncRadioButton.setSelection(false);
//			this.asyncOnlyRadioButton.setSelection(false);
//			this.syncOnlyRadioButton.setSelection(false);
			//earlier existing code (This only set focus false)
//			this.syncAndAsyncRadioButton.setEnabled(false);
//			this.asyncOnlyRadioButton.setEnabled(false);
//			this.syncOnlyRadioButton.setEnabled(false);
			if(serverSideCheckBoxButton.getSelection()==false 
					&& generateAllCheckBoxButton.getSelection() == false){
				clientSideCheckBoxButton.setSelection(true);
				settings.put(PREF_CHECK_GENERATE_CLIENTSIDE, clientSideCheckBoxButton
						.getSelection());
			}
		}
	}
	
	private void handleGenerateAllSelection() {
		if (this.generateAllCheckBoxButton.getSelection()) {
			settings.put(PREF_GEN_ALL, generateAllCheckBoxButton
					.getSelection());
			if(serverSideCheckBoxButton.getSelection()==true 
					|| clientSideCheckBoxButton.getSelection() == true){
				this.serverSideCheckBoxButton.setSelection(false);
				settings.put(PREF_CHECK_GENERATE_SERVERSIDE, serverSideCheckBoxButton.getSelection());
				uncheckServerSide();
				uncheckClientSide();
			}
			this.syncAndAsyncRadioButton.setSelection(false);
			this.asyncOnlyRadioButton.setSelection(false);
			this.syncOnlyRadioButton.setSelection(false);
			//earlier existing code (This only set focus false)
			this.syncAndAsyncRadioButton.setEnabled(false);
			this.asyncOnlyRadioButton.setEnabled(false);
			this.syncOnlyRadioButton.setEnabled(false);
			
			this.serverXMLCheckBoxButton.setEnabled(false);
			this.serverXMLCheckBoxButton.setSelection(false);
			this.generateServerSideInterfaceCheckBoxButton.setEnabled(false);
			this.generateServerSideInterfaceCheckBoxButton.setSelection(false);
			this.testCaseCheckBoxButton.setEnabled(true);
		}
		else{
			if(serverSideCheckBoxButton.getSelection()==false 
					|| clientSideCheckBoxButton.getSelection() == false){
				generateAllCheckBoxButton.setSelection(true);
				settings.put(PREF_GEN_ALL, generateAllCheckBoxButton
						.getSelection());
			}
		}
	}

	/**
	 * Get the selected language
	 * 
	 * @return a string containing the name of the target language
	 */
	public String getSelectedLanguage() {
		return languageSelectionComboBox.getItem(languageSelectionComboBox
				.getSelectionIndex());
	}

	/**
	 * the async only status
	 * 
	 * @return true if "Generate asynchronous code only" is checked
	 */
	public boolean isAsyncOnlyOn() {
		return asyncOnlyRadioButton.getSelection();
	}

	/**
	 * the sync only status
	 * 
	 * @return true if "Generate synchronous code only" is checked
	 */
	public boolean isSyncOnlyOn() {
		return syncOnlyRadioButton.getSelection();
	}

	/**
	 * return the package name
	 * 
	 * @return a string containing the package name to use for code generation
	 */
	public String getPackageName() {
		if ("".equals(packageText.getText().trim())){
			//we do not allow the packaging to be empty
			//if the user sets it to empty we set it to
			//the default
			return URLProcessor.DEFAULT_PACKAGE;
		}
		return this.packageText.getText();
	}

	/**
	 * The serverside status
	 * 
	 * @return true if "Generate Server-Side" is checked
	 */
	public boolean isServerside() {
		return this.serverSideCheckBoxButton.getSelection();
	}

	/**
	 * 
	 * @return true if "Generate XML configuration file" is checked
	 */
	public boolean isServerXML() {
		if (this.serverXMLCheckBoxButton.isEnabled())
			return this.serverXMLCheckBoxButton.getSelection();
		else
			return false;
	}

	/**
	 * 
	 * @return true if "Generate test case" is checked
	 */
	public boolean isGenerateTestCase() {
		return this.testCaseCheckBoxButton.getSelection();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.apache.axis2.tool.codegen.eclipse.ui.CodegenPage#getPageType()
	 */
	public int getPageType() {
		return WSDL_2_JAVA_TYPE;
	}

	/**
	 * 
	 * @return null if portname is empty
	 */
	public String getPortName() {
		int selectionIndex = portNameCombo.getSelectionIndex();
		if (selectionIndex != -1) {
			String text = this.portNameCombo.getItem(selectionIndex);

			if (text == null || text.trim().equals("")) {
				return null;
			}
			return text;
		} else {
			return null;
		}
	}

	/**
	 * @return null if the text is empty
	 * 
	 */
	public String getServiceName() {
		int selectionIndex = serviceNameCombo.getSelectionIndex();
		// cater for the scenario where the combo's can be empty
		if (selectionIndex != -1) {
			String text = this.serviceNameCombo.getItem(selectionIndex);

			if (text == null || text.trim().equals("")) {
				return null;
			}
			return text;
		} else {
			return null;
		}
	}

	/**
	 * 
	 * @return
	 */
	public String getDatabinderName() {
		return this.databindingTypeCombo.getItem(databindingTypeCombo
				.getSelectionIndex());

	}

	/**
	 * 
	 * @return
	 */
	public boolean getGenerateServerSideInterface() {
		return this.generateServerSideInterfaceCheckBoxButton.getSelection();
	}
	
	/**
	 * 
	 * @return
	 */
	public boolean getGenerateAll() {
		return this.generateAllCheckBoxButton.getSelection();
	}
	
	/**
	 * get the package to namespace mappings
	 * @return
	 */
	public String getNs2PkgMapping(){
		String returnList="";
		TableItem[] items = namespace2packageTable.getItems();
		String packageValue; 
		for (int i=0;i<items.length;i++){
			packageValue = items[i].getText(1);
			if (packageValue!=null && !"".equals(packageValue)){
				returnList = returnList +
				             ("".equals(returnList)?"":",") +
				             items[i].getText(0)+ "=" + packageValue;
			}
			
		}
		return "".equals(returnList)?null:returnList;
	}
	
	
	private void disableControls(){
		this.codegenOptionSelectionComboBox.select(0);
		this.testCaseCheckBoxButton.setEnabled(false);
        this.testCaseCheckBoxButton.setSelection(false);
        this.databindingTypeCombo.setEnabled(false);
        this.databindingTypeCombo.select(0);
        this.generateAllCheckBoxButton.setEnabled(false);
        this.generateAllCheckBoxButton.setSelection(false);
        this.generateServerSideInterfaceCheckBoxButton.setEnabled(false);
        this.generateServerSideInterfaceCheckBoxButton.setSelection(false);
        this.languageSelectionComboBox.setEnabled(false);
        this.namespace2packageTable.setEnabled(false);
        this.packageText.setEditable(false);
        this.portNameCombo.setEnabled(false);
        this.portNameCombo.select(0);        
        this.serverSideCheckBoxButton.setEnabled(false);
        this.serverSideCheckBoxButton.setSelection(false);
        this.serverXMLCheckBoxButton.setEnabled(false);
        this.serverXMLCheckBoxButton.setSelection(false);
        this.serviceNameCombo.setEnabled(false);
        this.serviceNameCombo.select(0);
        this.syncOnlyRadioButton.setEnabled(false);
        this.syncOnlyRadioButton.setSelection(false);
        this.asyncOnlyRadioButton.setEnabled(false);
        this.asyncOnlyRadioButton.setSelection(false);
        this.syncAndAsyncRadioButton.setEnabled(false);
        this.syncAndAsyncRadioButton.setSelection(true);
        this.packageText.setEnabled(false);
        this.clientSideCheckBoxButton.setEnabled(false);
        this.clientSideCheckBoxButton.setSelection(true);
        this.generateAllCheckBoxButton.setEnabled(false);
	}
	
	private void enableControls(){
        this.testCaseCheckBoxButton.setEnabled(true);
        this.databindingTypeCombo.setEnabled(true);
        this.languageSelectionComboBox.setEnabled(true);
        this.namespace2packageTable.setEnabled(true);
        this.packageText.setEditable(true);
        this.portNameCombo.setEnabled(true);
        this.serverSideCheckBoxButton.setEnabled(true);
        this.serviceNameCombo.setEnabled(true);
        this.syncOnlyRadioButton.setEnabled(true);
        this.asyncOnlyRadioButton.setEnabled(true);
        this.syncAndAsyncRadioButton.setEnabled(true);
        this.packageText.setEnabled(true);
        this.clientSideCheckBoxButton.setEnabled(true);
        this.generateAllCheckBoxButton.setEnabled(true);
	}
	
	/**
	 * get the package derived by  Namespace
	 */
	public String getPackageFromNamespace(String namespace){
		return  URLProcessor.makePackageName(namespace);
	}
	
	private void handleCustomPackageNameModifyEvent() {
	// This method is add as a tempory fix for the Axis2-1368 
	// TODO fix this permanantly.	
	String text = this.packageText.getText();
	if ((text == null) || (text.trim().equals(""))|| (text.endsWith(".")) || (text.startsWith("."))) {
		updateStatus(org.apache.axis2.tool.codegen.eclipse.plugin.CodegenWizardPlugin
				.getResourceString("page2.pachage.error.nolocation"));
		return;
	}
		updateStatus(null);
	}
	
	private void uncheckServerSide(){
		this.serverSideCheckBoxButton.setSelection(false);
		settings.put(PREF_CHECK_GENERATE_SERVERSIDE, serverSideCheckBoxButton.getSelection());
	}
	
	private void uncheckClientSide(){
		this.clientSideCheckBoxButton.setSelection(false);
		settings.put(PREF_CHECK_GENERATE_CLIENTSIDE, clientSideCheckBoxButton.getSelection());
	}
	
	private void uncheckGenerateAll(){
		this.generateAllCheckBoxButton.setSelection(false);
		settings.put(PREF_GEN_ALL, generateAllCheckBoxButton.getSelection());

	}
}