ExpandWithConstructorsDialog.java :  » IDE-Eclipse » jdt » org » eclipse » jdt » internal » ui » callhierarchy » Java Open Source

/*******************************************************************************
 * Copyright (c) 2009 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.ui.callhierarchy;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
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.core.runtime.IStatus;

import org.eclipse.jface.dialogs.StatusDialog;

import org.eclipse.ui.PlatformUI;

import org.eclipse.jdt.core.JavaConventions;
import org.eclipse.jdt.core.JavaCore;

import org.eclipse.jdt.internal.corext.util.Messages;

import org.eclipse.jdt.ui.PreferenceConstants;

import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;

/**
 * Configuration dialog for default "Expand with Constructors" behavior.
 * 
 * @since 3.5
 */
class ExpandWithConstructorsDialog extends StatusDialog {

  private static final String LINE_DELIMITER_REGEX= "\\r\\n?|\\n"; //$NON-NLS-1$

  private Button fAnonymousButton;
  private StyledText fDefaultTypesText;
  
  protected ExpandWithConstructorsDialog(Shell parentShell) {
    super(parentShell);
  }
  
  /*
   * @see org.eclipse.jface.dialogs.Dialog#isResizable()
   */
  protected boolean isResizable() {
    return true;
  }
  
  /*
   * @see org.eclipse.jface.dialogs.StatusDialog#configureShell(org.eclipse.swt.widgets.Shell)
   */
  protected void configureShell(Shell newShell) {
    super.configureShell(newShell);
    newShell.setText(CallHierarchyMessages.ExpandWithConstructorsDialog_title);
    setHelpAvailable(false);
    PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.CALL_HIERARCHY_EXPAND_WITH_CONSTRUCTORS_DIALOG);
  }

  /*
   * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
   */
  protected Control createDialogArea(Composite parent) {
    Composite composite= (Composite)super.createDialogArea(parent);
    ((GridData)composite.getLayoutData()).widthHint= convertWidthInCharsToPixels(60);
    
    Label descriptionLabel= new Label(composite, SWT.WRAP);
    descriptionLabel.setText(CallHierarchyMessages.ExpandWithConstructorsDialog_explanation_label);
    descriptionLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false));
    
    
    Label typesLabel= new Label(composite, SWT.WRAP);
    typesLabel.setText(CallHierarchyMessages.ExpandWithConstructorsDialog_typeNames_label);
    typesLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false));
    
    fDefaultTypesText= new StyledText(composite, SWT.BORDER | SWT.WRAP | SWT.H_SCROLL | SWT.V_SCROLL);
    GridData gd= new GridData(SWT.FILL, SWT.FILL, true, true);
    gd.heightHint= convertHeightInCharsToPixels(10);
    fDefaultTypesText.setLayoutData(gd);
    
    String defaultTypesPref= PreferenceConstants.getPreferenceStore().getString(CallHierarchyContentProvider.PREF_DEFAULT_EXPAND_WITH_CONSTRUCTORS);
    String defaultTypesText= defaultTypesPref.replace(';', '\n');
    fDefaultTypesText.setText(defaultTypesText);
    fDefaultTypesText.setSelection(fDefaultTypesText.getCharCount());
    
    fDefaultTypesText.addModifyListener(new ModifyListener() {
      public void modifyText(ModifyEvent e) {
        validateInput();
      }
    });
    
    
    fAnonymousButton= new Button(composite, SWT.CHECK);
    fAnonymousButton.setText(CallHierarchyMessages.ExpandWithConstructorsDialog_anonymousTypes_label);
    boolean anonymousPref= PreferenceConstants.getPreferenceStore().getBoolean(CallHierarchyContentProvider.PREF_ANONYMOUS_EXPAND_WITH_CONSTRUCTORS);
    fAnonymousButton.setSelection(anonymousPref);
    fAnonymousButton.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false));
    
    return composite;
  }

  /*
   * @see org.eclipse.jface.dialogs.Dialog#okPressed()
   */
  protected void okPressed() {
    PreferenceConstants.getPreferenceStore().setValue(CallHierarchyContentProvider.PREF_ANONYMOUS_EXPAND_WITH_CONSTRUCTORS, fAnonymousButton.getSelection());
    
    String defaultTypes= fDefaultTypesText.getText().trim();
    String defaultTypesPref= defaultTypes.replaceAll(LINE_DELIMITER_REGEX, ";"); //$NON-NLS-1$
    PreferenceConstants.getPreferenceStore().setValue(CallHierarchyContentProvider.PREF_DEFAULT_EXPAND_WITH_CONSTRUCTORS, defaultTypesPref);
    
    super.okPressed();
  }

  private void validateInput() {
    StatusInfo status= new StatusInfo();
    
    String[] defaultTypes= fDefaultTypesText.getText().split(LINE_DELIMITER_REGEX);
    for (int i= 0; i < defaultTypes.length; i++) {
      String type= defaultTypes[i];
      if (type.length() == 0)
        continue;
      
      IStatus typeNameStatus= JavaConventions.validateJavaTypeName(type, JavaCore.VERSION_1_3, JavaCore.VERSION_1_3);
      if (typeNameStatus.getSeverity() == IStatus.ERROR) {
        status.setError(Messages.format(CallHierarchyMessages.ExpandWithConstructorsDialog_not_a_valid_type_name, type));
        break;
      }
    }
    
    updateStatus(status);
  }
}