setpassworddialog.java

基于Eclipse RCP开发的管理工具

 /*  
  * Copyright 2006 Marcel Schoffelmeer 
  * 
  * 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 com.s10r.manager.dialogs;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
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;


/**
 * @author  schoffem
 */
public class SetPasswordDialog extends TitleAreaDialog
{
    
    private Text password;
    private Text confirm;
    private String msg;
    private String passwordStr;

    public SetPasswordDialog(Shell shell, String msg)
    {
        super(shell);

        setShellStyle(SWT.APPLICATION_MODAL | SWT.DIALOG_TRIM);
        setTitleAreaColor(new RGB(255, 255, 255));
        
        // can't set title here.. setTitle(msg);
        this.msg = msg;

    }
    
    @Override
    public void create()
    {
        super.create();
        this.setTitle(msg);
    }




    protected Control createDialogArea(Composite parent)
    {
        final Composite area = new Composite(parent, SWT.NULL);
        final GridLayout gridLayout = new GridLayout();
        gridLayout.numColumns = 2;
        gridLayout.marginWidth = 15;
        gridLayout.marginHeight = 10;
        area.setLayout(gridLayout);


        GridData data = new GridData(GridData.FILL_BOTH);
        Label label = new Label(area, SWT.NONE);
        label.setText("Password:");
        
        data = new GridData(GridData.FILL_BOTH);
        data.widthHint = 200;
        password = new Text(area, SWT.BORDER);
        password.setLayoutData(data);
        password.setEchoChar('*');
        
        KeyListener keyListener = new KeyListener() {

            public void keyPressed(KeyEvent arg0)
            {
            }

            public void keyReleased(KeyEvent arg0)
            {
                validateEntry();
            }};
        
        
        password.addKeyListener(keyListener);

        Label label2 = new Label(area, SWT.NONE);
        label2.setText("Confirm Password:");

        data = new GridData(GridData.FILL_BOTH);
        data.widthHint = 200;
        confirm = new Text(area, SWT.BORDER);
        confirm.setLayoutData(data);
        confirm.setEchoChar('*');
        confirm.addKeyListener(keyListener);



        return area;
    }
    
    @Override
    protected Control createButtonBar(Composite arg0)
    {
        Control c =  super.createButtonBar(arg0);
        
        enableOK(false);
        
        return c;
        
    }
    
    /**
     * Enables the OK button if more than 1 character of password
     * entry has been entered and the confirmation matches the 
     * password.
     */
    private void validateEntry()
    {
        if (password.getText().length() > 0 &&
                password.getText().equals(confirm.getText()))
        {
            passwordStr = password.getText();
            enableOK(true);
        }
        else
        {
            passwordStr = null;
            enableOK(false);            
        }
    }
    
    private void enableOK(boolean enable)
    {
        getButton(IDialogConstants.OK_ID).setEnabled(enable);
    }
    
    
    /**
	 * @return  the password
	 * @uml.property  name="password"
	 */
    public String getPassword()
    {
        return this.passwordStr;
    }    
      

 }