/*******************************************************************************
 * Copyright (c) 2004, 2005 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
 *     Jens Lukowski/Innoopract - initial renaming/restructuring
 *******************************************************************************/
package  org.eclipse.wst.common.ui.internal.dialogs;

import org.eclipse.core.resources.IFile;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
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.Shell;
import org.eclipse.ui.internal.WorkbenchImages;
import org.eclipse.ui.internal.ide.IDEInternalWorkbenchImages;
import org.eclipse.wst.common.ui.internal.viewers.SelectSingleFileView;


public class SelectSingleFileDialog extends TitleAreaDialog
{            
  protected SelectSingleFileView selectSingleFileView; 
  protected Button okButton;
  protected Image image;
 
  public SelectSingleFileDialog(Shell parentShell, IStructuredSelection selection, boolean isFileMandatory) 
  {
    super(parentShell);   
    setShellStyle(getShellStyle() | SWT.RESIZE);
    if (selection == null)
    {
      selection = new StructuredSelection();
    }
    selectSingleFileView = new SelectSingleFileView(selection, isFileMandatory)
    {
	  public void createFilterControl(Composite composite)
	  {
		SelectSingleFileDialog.this.createFilterControl(composite);
	  }
    };  
  }

  protected Control createDialogArea(Composite parent) 
  {                                                 
    Composite dialogArea = (Composite)super.createDialogArea(parent);
    
    //TODO.. enable context help
    //WorkbenchHelp.setHelp(dialogArea, B2BGUIContextIds.BTBG_SELECT_SINGLE_FILE_DIALOG);

    Composite composite = new Composite(dialogArea, SWT.NONE);
    composite.setLayout(new GridLayout());
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.widthHint = 350;
    gd.heightHint = 350;
    composite.setLayoutData(gd);   
            
    SelectSingleFileView.Listener listener = new SelectSingleFileView.Listener()
    {                                             
      public void setControlComplete(boolean isComplete)
      {                            
        okButton.setEnabled(isComplete);
      }
    };
    selectSingleFileView.setListener(listener);
    selectSingleFileView.createControl(composite);
    return dialogArea;
  }  

  protected void createButtonsForButtonBar(Composite parent) 
  {
    okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
    okButton.setEnabled(false);
    createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
  }  
       
  public void create()
  {
    super.create();
    selectSingleFileView.setVisibleHelper(true);
    image = WorkbenchImages.getImageDescriptor(IDEInternalWorkbenchImages.IMG_DLGBAN_SAVEAS_DLG).createImage();
    setTitleImage(image);
  }

  public void createFilterCombo(Composite composite)
  {
  } 

  public IFile getFile()
  {  
    return selectSingleFileView.getFile();
  }   

  public void addFilterExtensions(String[] filterExtensions)
  { 
    selectSingleFileView.addFilterExtensions(filterExtensions);
  }

  public void addFilterExtensions(String[] filterExtensions, IFile [] excludedFiles)
  {
    selectSingleFileView.addFilterExtensions(filterExtensions, excludedFiles);
  }
  
  public void createFilterControl(Composite composite)
  { 
  }

  public boolean close()
  {
    if (image != null)
    {
      image.dispose();
    }
    return super.close();
  }
}