confirmdialog.java

JaNet: Java Neural Network Toolkit resume: A well documented toolkit for designing and training, a

////////////////////////////////////////////////////////////////////////////////////  
//  
//  Copyright (C) 1996 L.  Patocchi & W.Gander
//
//  This program is free  software;  you can  redistribute  it and/or  modify it
//  under the terms of the GNU General  Public  License as published by the Free
//  Software  Foundation;  either  version 2 of the License, or (at your option)
//  any later version.
//
//  This program is  distributed in the hope that it will be useful, but WITHOUT
//  ANY  WARRANTY;  without  even the implied  warranty  of  MERCHANTABILITY  or
//  FITNESS FOR A PARTICULAR  PURPOSE.  See the GNU General  Public  License for
//  more details.
//
//  You should have received a copy of the GNU General Public License along with
//  this program; if not, write to the Free Software  Foundation, Inc., 675 Mass
//  Ave, Cambridge, MA 02139, USA.
//
//  Contacts:
//  
//    Project Supervisor
//      W.Hett       [e-mail]
//  
//    Authors
//      W.Gander     [e-mail]
//      L.Patocchi   [e-mail]
//
//  Documentation can be found at:
//
//      http://www.isbiel.ch/Projects/janet/index.html
//
////////////////////////////////////////////////////////////////////////////////////
//
// File : confirmDialog.java
//
package jaNet; 

import java.awt.*;

public class confirmDialog extends Dialog {		


	public Label 			labelMessage;
	public Button 			buttonOk;
	public Button 			buttonCancel;

    private Confirmable		dearParent;
    private int				ID;


	public confirmDialog(Frame parent, String message, int id) {
		super(parent, " ", false);
		Separator separator1;
		Separator separator2;

		// setup the identificator
		ID = id;
		// this is my parent
		dearParent = (Confirmable) parent;
        this.setBackground(Color.lightGray);

		// main panel
		GridBagLayout grid = new GridBagLayout();
		int rowHeights[] = {0,10,9,25,10,30,5};
		int columnWidths[] = {0,5,50,75,50,75,50,5};
		double rowWeights[] = {0.0,0.0,0.0,1.0,0.0,0.0,0.0};
		double columnWeights[] = {0.0,0.0,1.0,0.0,1.0,0.0,1.0,0.0};
		grid.rowHeights = rowHeights;
		grid.columnWidths = columnWidths;
		grid.rowWeights = rowWeights;
		grid.columnWeights = columnWeights;

		separator1 = new Separator(Separator.HORIZONTAL);
    	separator1.perSide = 0;
    	separator1.rise = Separator.IN;
		this.add(separator1);

		labelMessage = new Label();
		labelMessage.setFont(new Font("Helvetica",Font.BOLD , 14));
		labelMessage.setText(message);
		this.add(labelMessage);

		separator2 = new Separator(Separator.HORIZONTAL);
    	separator2.perSide = 0;
    	separator2.rise = Separator.IN;
		this.add(separator2);

		buttonOk = new Button();
		buttonOk.setLabel("OK");
		this.add(buttonOk);

		buttonCancel = new Button();
		buttonCancel.setLabel("Cancel");
		this.add(buttonCancel);

		// Geometry management
		GridBagConstraints con = new GridBagConstraints();
		reset(con);
		con.gridx = 1;
		con.gridy = 2;
		con.gridwidth = 7;
		con.anchor = GridBagConstraints.CENTER;
		con.fill = GridBagConstraints.BOTH;
		grid.setConstraints(separator1, con);

		reset(con);
		con.gridx = 2;
		con.gridy = 3;
		con.gridwidth = 5;
		con.anchor = GridBagConstraints.CENTER;
		con.fill = GridBagConstraints.NONE;
		grid.setConstraints(labelMessage, con);

		reset(con);
		con.gridx = 1;
		con.gridy = 4;
		con.gridwidth = 7;
		con.anchor = GridBagConstraints.CENTER;
		con.fill = GridBagConstraints.BOTH;
		grid.setConstraints(separator2, con);

		reset(con);
		con.gridx = 3;
		con.gridy = 5;
		con.anchor = GridBagConstraints.CENTER;
		con.fill = GridBagConstraints.HORIZONTAL;
		grid.setConstraints(buttonOk, con);

		reset(con);
		con.gridx = 5;
		con.gridy = 5;
		con.anchor = GridBagConstraints.CENTER;
		con.fill = GridBagConstraints.HORIZONTAL;
		grid.setConstraints(buttonCancel, con);


		// Resize behavior management and parent heirarchy
		setLayout(grid);

        addNotify();
        pack();	}
	
    public synchronized void show(String message) {
		labelMessage.setText(message);
		resize(preferredSize());
		show();
	}
    public synchronized void show() {
		Rectangle bounds = getParent().bounds();
		Rectangle abounds = bounds();

		move(bounds.x + (bounds.width - abounds.width)/ 2,
		     (bounds.height + abounds.height));
		
		pack();
		super.show();
    }

	private void reset(GridBagConstraints con) {
		con.gridx = GridBagConstraints.RELATIVE;
		con.gridy = GridBagConstraints.RELATIVE;
		con.gridwidth = 1;
		con.gridheight = 1;

		con.weightx = 0;
		con.weighty = 0;
		con.anchor = GridBagConstraints.CENTER;
		con.fill = GridBagConstraints.NONE;

		con.insets = new Insets(0, 0, 0, 0);
		con.ipadx = 0;
		con.ipady = 0;
	}
	
    public boolean handleEvent(Event event) {
    	if (event.id == Event.ACTION_EVENT && event.target == buttonOk) {
			dearParent.confirmIsYes(ID);
			hide();
			dispose();
			return true;
    	}else
    	if (event.id == Event.ACTION_EVENT && event.target == buttonCancel) {
			dearParent.confirmIsNo(ID);
			hide();
			dispose();
			return true;
    	}else
    	if (event.id == Event.WINDOW_DESTROY) {
    	    dearParent.confirmIsNo(ID);
    	    hide();
    	    dispose();
    	    return true;
    	}
    	return super.handleEvent(event);
    }

}