org.eclipse.egf.pattern.ui/src/org/eclipse/egf/pattern/ui/editors/dialogs/VariablesEditDialog.java

/**
 * <copyright>
 * 
 * Copyright (c) 2009-2010 Thales Corporate Services S.A.S. and other
 * 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
 * XiaoRu Chen, Soyatec
 * 
 * </copyright>
 */

package org.eclipse.egf.pattern.ui.editors.dialogs;

import org.eclipse.egf.model.fcore.NamedModelElement;
import org.eclipse.egf.model.pattern.PatternParameter;
import org.eclipse.egf.model.pattern.PatternVariable;
import org.eclipse.egf.pattern.ui.Messages;
import org.eclipse.egf.pattern.ui.editors.providers.ParametersTableLabelProvider;
import org.eclipse.egf.pattern.ui.editors.wizards.OpenTypeWizard;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.jdt.internal.core.BinaryType;
import org.eclipse.jface.window.Window;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
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.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.SelectionStatusDialog;

/**
 * 
 * @author XiaoRu Chen - Soyatec
 * 
 */
@SuppressWarnings("restriction")
public class VariablesEditDialog extends SelectionStatusDialog {

  private Text nameText;

  private Text typeText;

  private String name;

  private String typeName;

  private String type;

  private TransactionalEditingDomain editingDomain;

  public VariablesEditDialog(Shell shell, Object selectItem, TransactionalEditingDomain editingDomain) {
    super(shell);
    this.editingDomain = editingDomain;
    setDefaultValue(selectItem);
  }

  private void setDefaultValue(Object selectItem) {
    if (selectItem instanceof PatternVariable) {
      PatternVariable PatternVariable = (PatternVariable) selectItem;
      type = PatternVariable.getType();
      setValue(PatternVariable);
    } else if (selectItem instanceof PatternParameter) {
      PatternParameter patternParameter = (PatternParameter) selectItem;
      type = patternParameter.getType();
      setValue(patternParameter);
    }
  }

  private void setValue(NamedModelElement selection) {
    name = selection.getName();
    typeName = ParametersTableLabelProvider.getType(type);
  }

  @Override
  protected Control createDialogArea(Composite parent) {
    Composite composite = (Composite) super.createDialogArea(parent);
    GridLayout layout = new GridLayout();
    layout.numColumns = 3;
    composite.setLayout(layout);

    createLabel(composite, Messages.ParametersEditDialog_Name);
    nameText = new Text(composite, SWT.BORDER);
    GridData gd = new GridData(GridData.FILL_HORIZONTAL);
    gd.horizontalSpan = 2;
    nameText.setLayoutData(gd);
    nameText.setText(name);
    nameText.addModifyListener(new ModifyListener() {

      public void modifyText(ModifyEvent e) {
        name = nameText.getText();
      }
    });

    createLabel(composite, Messages.ParametersEditDialog_Type);
    typeText = new Text(composite, SWT.READ_ONLY | SWT.BORDER);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    typeText.setLayoutData(gd);
    typeText.setText(typeName);
    typeText.addModifyListener(new ModifyListener() {

      public void modifyText(ModifyEvent e) {
        typeName = typeText.getText();
      }
    });
    Button typeButton = new Button(composite, SWT.PUSH);
    gd = new GridData();
    typeButton.setLayoutData(gd);
    typeButton.setText(Messages.ParametersEditDialog_Browse);
    typeButton.addSelectionListener(new SelectionListener() {
      public void widgetSelected(SelectionEvent e) {
        OpenTypeWizard wizard = new OpenTypeWizard(editingDomain, type);
        wizard.init(PlatformUI.getWorkbench(), null);
        WizardDialog dialog = new WizardDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), wizard);
        int returnValue = dialog.open();
        if (Window.OK == returnValue) {
          Object selectType = wizard.getSelectType();
          if (selectType instanceof String) {
            if (selectType != null && !"".equals(selectType)) {
              type = (String) selectType;
              typeText.setText(ParametersTableLabelProvider.getType(type));
            }
          } else if (selectType instanceof BinaryType) {
            if (selectType != null) {
              type = ((BinaryType) selectType).getFullyQualifiedName();
              typeText.setText(((BinaryType) selectType).getElementName());
            }
          }
        }

      }

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

  public static Label createLabel(Composite parent, String content) {
    Label label = new Label(parent, SWT.NONE);
    label.setText(content);
    return label;
  }

  public String getName() {
    return name;
  }

  public String getType() {
    return type;
  }

  @Override
  protected void computeResult() {
  }

}