package org.cookbook.ch09;

import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;

public class DialogClass {
	static boolean deleteFlag = false;

	public static void main(String [] args) {
		Display display = new Display();
		Shell shell = new Shell(display);
		shell.setText("Dialog Example");
		shell.setSize(300, 200);
		shell.open();
		
		final Button button = new Button(shell, SWT.PUSH);
		button.setText("Delete File");
		button.setBounds(20, 40, 80, 25);
		
		final Text text = new Text(shell, SWT.SHADOW_IN);
		text.setBounds(140, 40, 100, 25);
		
		final Shell dialog = new Shell(shell, SWT.APPLICATION_MODAL |
             SWT.DIALOG_TRIM);
		dialog.setText("Delete File");
		dialog.setSize(250, 150);
		
		final Button buttonOK = new Button(dialog, SWT.PUSH);
		buttonOK.setText("OK");
		buttonOK.setBounds(20, 55, 80, 25);
		
		Button buttonCancel = new Button(dialog, SWT.PUSH);
		buttonCancel.setText("Cancel");
		buttonCancel.setBounds(120, 55, 80, 25);

		final Label label = new Label(dialog, SWT.NONE);
		label.setText("Delete the file?");
		label.setBounds(20, 15, 100, 20);
		
		Listener listener = new Listener() {
			public void handleEvent(Event event) {
				if(event.widget == buttonOK){
					deleteFlag = true;
				}else{
					deleteFlag = false;
				}
				dialog.close();
			}
		};
		
		buttonOK.addListener(SWT.Selection, listener);
		buttonCancel.addListener(SWT.Selection, listener);
	
		Listener buttonListener = new Listener() {
			public void handleEvent(Event event) {
				dialog.open();
			}
		};
		
		button.addListener(SWT.Selection, buttonListener);

		while(!dialog.isDisposed()) {
			if(!display.readAndDispatch()) display.sleep();
		}
		
		if(deleteFlag){
			text.setText("File deleted.");
		} else {
			text.setText("File not deleted.");
		}
		
		while(!shell.isDisposed()) {
			if(!display.readAndDispatch()) display.sleep();
		}
		display.dispose();
	}
}