plugins/org.eclipse.egf.pattern.ui/src/org/eclipse/egf/pattern/ui/editors/wizards/pages/ParameterMatchingPage.java - egf/org.eclipse.emf.egf - Git at Google

 /**
  * <copyright>
  *
  *  Copyright (c) 2009-2010 Thales Corporate Services S.A.S.
  *  All rights reserved. This program and the accompanying materials
  *  are made available under the terms of the Eclipse Public License v1.0
  *  which accompanies this distribution, and is available at
  *  http://www.eclipse.org/legal/epl-v10.html
  *
  *  Contributors:
  *      Thales Corporate Services S.A.S - initial API and implementation
  *
  * </copyright>
  */

 package org.eclipse.egf.pattern.ui.editors.wizards.pages;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map.Entry;

 import org.eclipse.egf.model.pattern.Pattern;
 import org.eclipse.egf.model.pattern.PatternCall;
 import org.eclipse.egf.model.pattern.PatternParameter;
 import org.eclipse.egf.model.pattern.impl.Paramerter2ParameterMapImpl;
 import org.eclipse.egf.pattern.ui.ImageShop;
 import org.eclipse.egf.pattern.ui.Messages;
 import org.eclipse.egf.pattern.ui.editors.providers.CommonListContentProvider;
 import org.eclipse.egf.pattern.ui.editors.providers.ParameterMatchingLibraryProvider;
 import org.eclipse.egf.pattern.ui.editors.providers.ParametersTableLabelProvider;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.common.util.EMap;
 import org.eclipse.emf.transaction.RecordingCommand;
 import org.eclipse.emf.transaction.TransactionalEditingDomain;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;

 /**
  * @author XiaoRu Chen - Soyatec
  *
  */
 public class ParameterMatchingPage extends WizardPage {

     private Pattern patternCaller;

     private Pattern patternCallee;

     private Label patternCalleeNameLabel;

     private TableViewer calleeTableViewer;

     private TableViewer matchingTableViewer;

     private TableViewer callerTableViewer;

     private Button createMatch;

     private Button deleteMatch;

     private Button editMatch;

     private PatternCall call;

     private TransactionalEditingDomain transactionalEditingDomain;

     private List<RecordingCommand> matchingCommands;

     public ParameterMatchingPage(ISelection selection, Pattern patternCaller, TransactionalEditingDomain transactionalEditingDomain) {
         super(Messages.ParameterMatchingPage_title);
         setTitle(Messages.ParameterMatchingPage_title);
         setDescription(Messages.ParameterMatchingPage_label_text);

         this.patternCaller = patternCaller;
         this.transactionalEditingDomain = transactionalEditingDomain;
     }

     public void createControl(Composite parent) {
         Composite dialogArea = new Composite(parent, SWT.NONE);
         GridLayout layout = new GridLayout();
         dialogArea.setLayout(layout);

         createParameterArea(dialogArea);
         createMatchingArea(dialogArea);

         setControl(dialogArea);
     }

     private void createParameterArea(Composite dialogArea) {
         Composite parameterArea = createArea(dialogArea, true);

         createCallerArea(parameterArea);
         createCalleeArea(parameterArea);
         createMatingButton(parameterArea);
     }

     private void createMatingButton(Composite parameterArea) {
         createMatch = new Button(parameterArea, SWT.PUSH);
         createMatch.setText(Messages.ParameterMatchingPage_button_create);

         GridData gd = new GridData();
         gd.widthHint = 200;
         gd.horizontalSpan = 2;
         gd.horizontalAlignment = SWT.CENTER;
         gd.verticalIndent = 0;
         createMatch.setLayoutData(gd);
         createMatch.addSelectionListener(new SelectionListener() {

             public void widgetSelected(SelectionEvent e) {
                 createMatching();
             }

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

     private void createMatchingArea(Composite dialogArea) {
         Composite parameterArea = createArea(dialogArea, false);

         Label currenMatchingLabel = new Label(parameterArea, SWT.NONE);
         GridData gd = new GridData(GridData.FILL_HORIZONTAL);
         gd.horizontalSpan = 2;
         gd.horizontalIndent = 9;
         currenMatchingLabel.setLayoutData(gd);
         currenMatchingLabel.setText(Messages.ParameterMatchingPage_current_mathings_title);

         Table table = new Table(parameterArea, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
         gd = new GridData(GridData.FILL_BOTH);
         gd.heightHint = 160;
         gd.horizontalIndent = 7;
         gd.verticalIndent = 0;
         table.setLayoutData(gd);

         TableColumn tableColumn = new TableColumn(table, SWT.NONE);
         tableColumn.setWidth(420);
         matchingTableViewer = new TableViewer(table);
         matchingTableViewer.setLabelProvider(new ParameterMatchingLibraryProvider());
         matchingTableViewer.setContentProvider(new CommonListContentProvider());
         matchingTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

             public void selectionChanged(SelectionChangedEvent event) {
                 checkEidtAndDeleteButtonEnable();
             }

         });
         createMatchingAreaButtons(parameterArea);
     }

     private void createMatchingAreaButtons(Composite parameterArea) {
         Composite buttonsArea = new Composite(parameterArea, SWT.NONE);
         GridLayout layout = new GridLayout();
         buttonsArea.setLayout(layout);

         deleteMatch = createButton(buttonsArea);
         deleteMatch.setToolTipText(Messages.ParameterMatchingPage_button_delete);
         deleteMatch.setText(""); //$NON-NLS-1$
         deleteMatch.setImage(ImageShop.get(ImageShop.IMG_DELETE_OBJ));
         deleteMatch.addSelectionListener(new SelectionListener() {

             public void widgetSelected(SelectionEvent e) {
                 deleteMatching();
             }

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

         editMatch = createButton(buttonsArea);
         editMatch.setToolTipText(Messages.ParameterMatchingPage_button_edit);
         editMatch.setText(""); //$NON-NLS-1$
         editMatch.setImage(ImageShop.get(ImageShop.IMG_EDIT_OBJ));
     }

     private Composite createArea(Composite composite, boolean makeColumnsEqualWidth) {
         Composite container = new Composite(composite, SWT.NONE);
         GridLayout layout = new GridLayout(2, makeColumnsEqualWidth);

         GridData gd = new GridData(GridData.FILL_BOTH);
         gd.verticalIndent = 0;
         container.setLayout(layout);
         container.setLayoutData(gd);
         return container;
     }

     private void createCallerArea(Composite dialogArea) {
         Composite callerArea = createCallArea(dialogArea);
         createPatternNameLabel(callerArea, patternCaller);
         callerTableViewer = createParameterTableViewer(callerArea, patternCaller);
         callerTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

             public void selectionChanged(SelectionChangedEvent event) {
                 checkCreateButtonEnable();
             }

         });
     }

     private void createCalleeArea(Composite dialogArea) {
         Composite calleeArea = createCallArea(dialogArea);
         patternCalleeNameLabel = createPatternNameLabel(calleeArea, patternCallee);
         calleeTableViewer = createParameterTableViewer(calleeArea, patternCallee);
         calleeTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

             public void selectionChanged(SelectionChangedEvent event) {
                 checkCreateButtonEnable();
             }

         });
     }

     private Label createPatternNameLabel(Composite container, Pattern pattern) {
         Label patternNameLabel = new Label(container, SWT.NONE);
         GridData gd = new GridData(GridData.FILL_HORIZONTAL);
         patternNameLabel.setLayoutData(gd);
         setPatternName(pattern, patternNameLabel); //$NON-NLS-1$ //$NON-NLS-2$
         return patternNameLabel;
     }

     private TableViewer createParameterTableViewer(Composite container, Pattern pattern) {
         Table listTable = new Table(container, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
         GridData gd = new GridData(GridData.FILL_BOTH);
         gd.heightHint = listTable.getItemHeight();
         listTable.setLayoutData(gd);

         TableColumn tableColumn = new TableColumn(listTable, SWT.NONE);
         tableColumn.setWidth(260);
         TableViewer tableViewer = new TableViewer(listTable);
         tableViewer.setLabelProvider(new ParametersTableLabelProvider());
         tableViewer.setContentProvider(new CommonListContentProvider());

         return tableViewer;
     }

     private Composite createCallArea(Composite container) {
         Composite callArea = new Composite(container, SWT.NONE);
         GridLayout layout = new GridLayout();
         callArea.setLayout(layout);
         GridData gd = new GridData(GridData.FILL_BOTH);
         callArea.setLayoutData(gd);
         return callArea;
     }

     private Button createButton(Composite container) {
         Button button = new Button(container, SWT.PUSH);
         GridData gd = new GridData();
         gd.widthHint = 60;
         button.setLayoutData(gd);
         return button;
     }

     private List<PatternParameter> getCallerTableInput(Pattern pattern) {
         return pattern == null ? null : pattern.getParameters();
     }

     private List<PatternParameter> getCalleeTableInput(Pattern pattern) {
         if (pattern == null) {
             return null;
         }
         EList<PatternParameter> parameters = pattern.getParameters();
         List<PatternParameter> availableParameters = new ArrayList<PatternParameter>();
         EMap<PatternParameter, PatternParameter> parameterMatching = call.getParameterMatching();
         for (PatternParameter parameter : parameters) {
             if (isAvailableParameter(parameter, parameterMatching)) {
                 availableParameters.add(parameter);
             }
         }

         return availableParameters;
     }

     /**
      * Check whether the parameter is available.
      */
     private boolean isAvailableParameter(PatternParameter parameter, EMap<PatternParameter, PatternParameter> parameterMatching) {
         for (int i = 0; i < parameterMatching.size(); i++) {
             Entry<PatternParameter, PatternParameter> currentEntry = parameterMatching.get(i);
             PatternParameter currentKey = currentEntry.getKey();
             if (currentKey.equals(parameter)) {
                 return false;
             }
         }
         return true;
     }

     private void checkCreateButtonEnable() {
         if ((getSelection(callerTableViewer) != null) && (getSelection(calleeTableViewer) != null)) {
             createMatch.setEnabled(true);
         } else {
             createMatch.setEnabled(false);
         }
     }

     private void checkEidtAndDeleteButtonEnable() {
         if ((getSelection(matchingTableViewer) != null)) {
             deleteMatch.setEnabled(true);
             editMatch.setEnabled(true);
         } else {
             deleteMatch.setEnabled(false);
             editMatch.setEnabled(false);
         }
     }

     /**
      * Return the selection of the tableViewer.
      */
     private Object getSelection(TableViewer tableViewer) {
         int selectionIndex = tableViewer.getTable().getSelectionIndex();
         if (selectionIndex != -1) {
             return tableViewer.getElementAt(selectionIndex);
         }
         return null;
     }

     /**
      * Create a new parameter matching.
      */
     private void createMatching() {
         final PatternParameter callerParameter = (PatternParameter) getSelection(callerTableViewer);
         final PatternParameter calleeParameter = (PatternParameter) getSelection(calleeTableViewer);
         int selectIndex = calleeTableViewer.getTable().getSelectionIndex();
         RecordingCommand cmd = new RecordingCommand(transactionalEditingDomain) {
             protected void doExecute() {
                 call.getParameterMatching().put(calleeParameter, callerParameter);
             }
         };
         transactionalEditingDomain.getCommandStack().execute(cmd);
         matchingCommands.add(cmd);
         refreshTables();
         setSelection(calleeTableViewer, selectIndex);
     }

     /**
      * Delete a new parameter matching.
      */
     private void deleteMatching() {
         final Paramerter2ParameterMapImpl deleteItem = (Paramerter2ParameterMapImpl) getSelection(matchingTableViewer);
         int selectIndex = matchingTableViewer.getTable().getSelectionIndex();
         RecordingCommand cmd = new RecordingCommand(transactionalEditingDomain) {
             protected void doExecute() {
                 call.getParameterMatching().remove(deleteItem);
             }
         };
         transactionalEditingDomain.getCommandStack().execute(cmd);
         matchingCommands.add(cmd);
         refreshTables();
         setSelection(matchingTableViewer, selectIndex);
     }

     private void refreshTables() {
         matchingTableViewer.setInput(getMatchingList());
         calleeTableViewer.setInput(getCalleeTableInput(patternCallee));
         setMissingInformation();
     }

     /**
      * Get the matchingTableViewer's input.
      */
     private EMap<PatternParameter, PatternParameter> getMatchingList() {
         EMap<PatternParameter, PatternParameter> parameterMatching = null;
         parameterMatching = call.getParameterMatching();
         return parameterMatching;
     }

     /**
      * Update the patterCallee table.
      */
     public void setVisible(boolean visible) {
         if (visible) {
             matchingCommands = new ArrayList<RecordingCommand>();
             updatePatternCallee();
             callerTableViewer.setInput(getCallerTableInput(patternCaller));
             refreshTables();
             checkCreateButtonEnable();
             checkEidtAndDeleteButtonEnable();
         }
         super.setVisible(visible);
     }

     private String getPatternName(String name) {
         return name + ((name == null || name.equals("")) ? "" : ":"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
     }

     /**
      * Set the display pattern name label.
      */
     private void setPatternName(Pattern pattern, Label label) {
         String patternName = pattern == null ? "" : pattern.getName(); //$NON-NLS-1$
         label.setText(getPatternName(patternName));
     }

     /**
      * Refresh the patternCallee area.
      */
     private void updatePatternCallee() {
         setPatternName(patternCallee, patternCalleeNameLabel);
         calleeTableViewer.setInput(getCallerTableInput(patternCallee));
     }

     /**
      * Set new selection after refresh the tableViewr.
      */
     private void setSelection(TableViewer tableViewer, int oldIndex) {
         int len = tableViewer.getTable().getItemCount();
         if (len > 0) {
             if (oldIndex == len) {
                 tableViewer.getTable().setSelection(oldIndex - 1);
             } else if (oldIndex < len) {
                 tableViewer.getTable().setSelection(oldIndex);
             }
         }
         checkCreateButtonEnable();
         checkEidtAndDeleteButtonEnable();
     }

     /**
      * If there is no available caller parameters or callee parameters to
      * setup,show the information in the page.
      */
     private void setMissingInformation() {
         String message = null;
         if (callerTableViewer.getTable().getItemCount() == 0 || calleeTableViewer.getTable().getItemCount() == 0) {
             message = Messages.ParameterMatchingPage_missing_information;
         }
         setMessage(message, INFORMATION);
     }

     public void setPatternCall(PatternCall call) {
         this.call = call;
     }

     public PatternCall getPatternCall() {
         return call;
     }

     public void setPatternCallee(Pattern patternCallee) {
         this.patternCallee = patternCallee;
     }

     public List<RecordingCommand> getParameterMatchingCommands() {
         return matchingCommands;
     }
 }
	/**
	* <copyright>
	*
	* Copyright (c) 2009-2010 Thales Corporate Services S.A.S.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Thales Corporate Services S.A.S - initial API and implementation
	*
	* </copyright>
	*/

	package org.eclipse.egf.pattern.ui.editors.wizards.pages;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Map.Entry;

	import org.eclipse.egf.model.pattern.Pattern;
	import org.eclipse.egf.model.pattern.PatternCall;
	import org.eclipse.egf.model.pattern.PatternParameter;
	import org.eclipse.egf.model.pattern.impl.Paramerter2ParameterMapImpl;
	import org.eclipse.egf.pattern.ui.ImageShop;
	import org.eclipse.egf.pattern.ui.Messages;
	import org.eclipse.egf.pattern.ui.editors.providers.CommonListContentProvider;
	import org.eclipse.egf.pattern.ui.editors.providers.ParameterMatchingLibraryProvider;
	import org.eclipse.egf.pattern.ui.editors.providers.ParametersTableLabelProvider;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.emf.common.util.EMap;
	import org.eclipse.emf.transaction.RecordingCommand;
	import org.eclipse.emf.transaction.TransactionalEditingDomain;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.wizard.WizardPage;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;

	/**
	* @author XiaoRu Chen - Soyatec
	*
	*/
	public class ParameterMatchingPage extends WizardPage {

	private Pattern patternCaller;

	private Pattern patternCallee;

	private Label patternCalleeNameLabel;

	private TableViewer calleeTableViewer;

	private TableViewer matchingTableViewer;

	private TableViewer callerTableViewer;

	private Button createMatch;

	private Button deleteMatch;

	private Button editMatch;

	private PatternCall call;

	private TransactionalEditingDomain transactionalEditingDomain;

	private List<RecordingCommand> matchingCommands;

	public ParameterMatchingPage(ISelection selection, Pattern patternCaller, TransactionalEditingDomain transactionalEditingDomain) {
	super(Messages.ParameterMatchingPage_title);
	setTitle(Messages.ParameterMatchingPage_title);
	setDescription(Messages.ParameterMatchingPage_label_text);

	this.patternCaller = patternCaller;
	this.transactionalEditingDomain = transactionalEditingDomain;
	}

	public void createControl(Composite parent) {
	Composite dialogArea = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	dialogArea.setLayout(layout);

	createParameterArea(dialogArea);
	createMatchingArea(dialogArea);

	setControl(dialogArea);
	}

	private void createParameterArea(Composite dialogArea) {
	Composite parameterArea = createArea(dialogArea, true);

	createCallerArea(parameterArea);
	createCalleeArea(parameterArea);
	createMatingButton(parameterArea);
	}

	private void createMatingButton(Composite parameterArea) {
	createMatch = new Button(parameterArea, SWT.PUSH);
	createMatch.setText(Messages.ParameterMatchingPage_button_create);

	GridData gd = new GridData();
	gd.widthHint = 200;
	gd.horizontalSpan = 2;
	gd.horizontalAlignment = SWT.CENTER;
	gd.verticalIndent = 0;
	createMatch.setLayoutData(gd);
	createMatch.addSelectionListener(new SelectionListener() {

	public void widgetSelected(SelectionEvent e) {
	createMatching();
	}

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

	private void createMatchingArea(Composite dialogArea) {
	Composite parameterArea = createArea(dialogArea, false);

	Label currenMatchingLabel = new Label(parameterArea, SWT.NONE);
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	gd.horizontalIndent = 9;
	currenMatchingLabel.setLayoutData(gd);
	currenMatchingLabel.setText(Messages.ParameterMatchingPage_current_mathings_title);

	Table table = new Table(parameterArea, SWT.V_SCROLL \| SWT.H_SCROLL \| SWT.BORDER);
	gd = new GridData(GridData.FILL_BOTH);
	gd.heightHint = 160;
	gd.horizontalIndent = 7;
	gd.verticalIndent = 0;
	table.setLayoutData(gd);

	TableColumn tableColumn = new TableColumn(table, SWT.NONE);
	tableColumn.setWidth(420);
	matchingTableViewer = new TableViewer(table);
	matchingTableViewer.setLabelProvider(new ParameterMatchingLibraryProvider());
	matchingTableViewer.setContentProvider(new CommonListContentProvider());
	matchingTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

	public void selectionChanged(SelectionChangedEvent event) {
	checkEidtAndDeleteButtonEnable();
	}

	});
	createMatchingAreaButtons(parameterArea);
	}

	private void createMatchingAreaButtons(Composite parameterArea) {
	Composite buttonsArea = new Composite(parameterArea, SWT.NONE);
	GridLayout layout = new GridLayout();
	buttonsArea.setLayout(layout);

	deleteMatch = createButton(buttonsArea);
	deleteMatch.setToolTipText(Messages.ParameterMatchingPage_button_delete);
	deleteMatch.setText(""); //$NON-NLS-1$
	deleteMatch.setImage(ImageShop.get(ImageShop.IMG_DELETE_OBJ));
	deleteMatch.addSelectionListener(new SelectionListener() {

	public void widgetSelected(SelectionEvent e) {
	deleteMatching();
	}

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

	editMatch = createButton(buttonsArea);
	editMatch.setToolTipText(Messages.ParameterMatchingPage_button_edit);
	editMatch.setText(""); //$NON-NLS-1$
	editMatch.setImage(ImageShop.get(ImageShop.IMG_EDIT_OBJ));
	}

	private Composite createArea(Composite composite, boolean makeColumnsEqualWidth) {
	Composite container = new Composite(composite, SWT.NONE);
	GridLayout layout = new GridLayout(2, makeColumnsEqualWidth);

	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.verticalIndent = 0;
	container.setLayout(layout);
	container.setLayoutData(gd);
	return container;
	}

	private void createCallerArea(Composite dialogArea) {
	Composite callerArea = createCallArea(dialogArea);
	createPatternNameLabel(callerArea, patternCaller);
	callerTableViewer = createParameterTableViewer(callerArea, patternCaller);
	callerTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

	public void selectionChanged(SelectionChangedEvent event) {
	checkCreateButtonEnable();
	}

	});
	}

	private void createCalleeArea(Composite dialogArea) {
	Composite calleeArea = createCallArea(dialogArea);
	patternCalleeNameLabel = createPatternNameLabel(calleeArea, patternCallee);
	calleeTableViewer = createParameterTableViewer(calleeArea, patternCallee);
	calleeTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

	public void selectionChanged(SelectionChangedEvent event) {
	checkCreateButtonEnable();
	}

	});
	}

	private Label createPatternNameLabel(Composite container, Pattern pattern) {
	Label patternNameLabel = new Label(container, SWT.NONE);
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	patternNameLabel.setLayoutData(gd);
	setPatternName(pattern, patternNameLabel); //$NON-NLS-1$ //$NON-NLS-2$
	return patternNameLabel;
	}

	private TableViewer createParameterTableViewer(Composite container, Pattern pattern) {
	Table listTable = new Table(container, SWT.V_SCROLL \| SWT.H_SCROLL \| SWT.BORDER);
	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.heightHint = listTable.getItemHeight();
	listTable.setLayoutData(gd);

	TableColumn tableColumn = new TableColumn(listTable, SWT.NONE);
	tableColumn.setWidth(260);
	TableViewer tableViewer = new TableViewer(listTable);
	tableViewer.setLabelProvider(new ParametersTableLabelProvider());
	tableViewer.setContentProvider(new CommonListContentProvider());

	return tableViewer;
	}

	private Composite createCallArea(Composite container) {
	Composite callArea = new Composite(container, SWT.NONE);
	GridLayout layout = new GridLayout();
	callArea.setLayout(layout);
	GridData gd = new GridData(GridData.FILL_BOTH);
	callArea.setLayoutData(gd);
	return callArea;
	}

	private Button createButton(Composite container) {
	Button button = new Button(container, SWT.PUSH);
	GridData gd = new GridData();
	gd.widthHint = 60;
	button.setLayoutData(gd);
	return button;
	}

	private List<PatternParameter> getCallerTableInput(Pattern pattern) {
	return pattern == null ? null : pattern.getParameters();
	}

	private List<PatternParameter> getCalleeTableInput(Pattern pattern) {
	if (pattern == null) {
	return null;
	}
	EList<PatternParameter> parameters = pattern.getParameters();
	List<PatternParameter> availableParameters = new ArrayList<PatternParameter>();
	EMap<PatternParameter, PatternParameter> parameterMatching = call.getParameterMatching();
	for (PatternParameter parameter : parameters) {
	if (isAvailableParameter(parameter, parameterMatching)) {
	availableParameters.add(parameter);
	}
	}

	return availableParameters;
	}

	/**
	* Check whether the parameter is available.
	*/
	private boolean isAvailableParameter(PatternParameter parameter, EMap<PatternParameter, PatternParameter> parameterMatching) {
	for (int i = 0; i < parameterMatching.size(); i++) {
	Entry<PatternParameter, PatternParameter> currentEntry = parameterMatching.get(i);
	PatternParameter currentKey = currentEntry.getKey();
	if (currentKey.equals(parameter)) {
	return false;
	}
	}
	return true;
	}

	private void checkCreateButtonEnable() {
	if ((getSelection(callerTableViewer) != null) && (getSelection(calleeTableViewer) != null)) {
	createMatch.setEnabled(true);
	} else {
	createMatch.setEnabled(false);
	}
	}

	private void checkEidtAndDeleteButtonEnable() {
	if ((getSelection(matchingTableViewer) != null)) {
	deleteMatch.setEnabled(true);
	editMatch.setEnabled(true);
	} else {
	deleteMatch.setEnabled(false);
	editMatch.setEnabled(false);
	}
	}

	/**
	* Return the selection of the tableViewer.
	*/
	private Object getSelection(TableViewer tableViewer) {
	int selectionIndex = tableViewer.getTable().getSelectionIndex();
	if (selectionIndex != -1) {
	return tableViewer.getElementAt(selectionIndex);
	}
	return null;
	}

	/**
	* Create a new parameter matching.
	*/
	private void createMatching() {
	final PatternParameter callerParameter = (PatternParameter) getSelection(callerTableViewer);
	final PatternParameter calleeParameter = (PatternParameter) getSelection(calleeTableViewer);
	int selectIndex = calleeTableViewer.getTable().getSelectionIndex();
	RecordingCommand cmd = new RecordingCommand(transactionalEditingDomain) {
	protected void doExecute() {
	call.getParameterMatching().put(calleeParameter, callerParameter);
	}
	};
	transactionalEditingDomain.getCommandStack().execute(cmd);
	matchingCommands.add(cmd);
	refreshTables();
	setSelection(calleeTableViewer, selectIndex);
	}

	/**
	* Delete a new parameter matching.
	*/
	private void deleteMatching() {
	final Paramerter2ParameterMapImpl deleteItem = (Paramerter2ParameterMapImpl) getSelection(matchingTableViewer);
	int selectIndex = matchingTableViewer.getTable().getSelectionIndex();
	RecordingCommand cmd = new RecordingCommand(transactionalEditingDomain) {
	protected void doExecute() {
	call.getParameterMatching().remove(deleteItem);
	}
	};
	transactionalEditingDomain.getCommandStack().execute(cmd);
	matchingCommands.add(cmd);
	refreshTables();
	setSelection(matchingTableViewer, selectIndex);
	}

	private void refreshTables() {
	matchingTableViewer.setInput(getMatchingList());
	calleeTableViewer.setInput(getCalleeTableInput(patternCallee));
	setMissingInformation();
	}

	/**
	* Get the matchingTableViewer's input.
	*/
	private EMap<PatternParameter, PatternParameter> getMatchingList() {
	EMap<PatternParameter, PatternParameter> parameterMatching = null;
	parameterMatching = call.getParameterMatching();
	return parameterMatching;
	}

	/**
	* Update the patterCallee table.
	*/
	public void setVisible(boolean visible) {
	if (visible) {
	matchingCommands = new ArrayList<RecordingCommand>();
	updatePatternCallee();
	callerTableViewer.setInput(getCallerTableInput(patternCaller));
	refreshTables();
	checkCreateButtonEnable();
	checkEidtAndDeleteButtonEnable();
	}
	super.setVisible(visible);
	}

	private String getPatternName(String name) {
	return name + ((name == null \|\| name.equals("")) ? "" : ":"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	}

	/**
	* Set the display pattern name label.
	*/
	private void setPatternName(Pattern pattern, Label label) {
	String patternName = pattern == null ? "" : pattern.getName(); //$NON-NLS-1$
	label.setText(getPatternName(patternName));
	}

	/**
	* Refresh the patternCallee area.
	*/
	private void updatePatternCallee() {
	setPatternName(patternCallee, patternCalleeNameLabel);
	calleeTableViewer.setInput(getCallerTableInput(patternCallee));
	}

	/**
	* Set new selection after refresh the tableViewr.
	*/
	private void setSelection(TableViewer tableViewer, int oldIndex) {
	int len = tableViewer.getTable().getItemCount();
	if (len > 0) {
	if (oldIndex == len) {
	tableViewer.getTable().setSelection(oldIndex - 1);
	} else if (oldIndex < len) {
	tableViewer.getTable().setSelection(oldIndex);
	}
	}
	checkCreateButtonEnable();
	checkEidtAndDeleteButtonEnable();
	}

	/**
	* If there is no available caller parameters or callee parameters to
	* setup,show the information in the page.
	*/
	private void setMissingInformation() {
	String message = null;
	if (callerTableViewer.getTable().getItemCount() == 0 \|\| calleeTableViewer.getTable().getItemCount() == 0) {
	message = Messages.ParameterMatchingPage_missing_information;
	}
	setMessage(message, INFORMATION);
	}

	public void setPatternCall(PatternCall call) {
	this.call = call;
	}

	public PatternCall getPatternCall() {
	return call;
	}

	public void setPatternCallee(Pattern patternCallee) {
	this.patternCallee = patternCallee;
	}

	public List<RecordingCommand> getParameterMatchingCommands() {
	return matchingCommands;
	}
	}