/*******************************************************************************
 * Copyright (c) 2007- VTT Technical Research Centre of Finland.
 * 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:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.processeditor.dialogs;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
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.swt.widgets.Text;

public class FloorConfigureDialog extends Dialog implements KeyListener,SelectionListener {
	
	private boolean floorEnabled = true;
	private double floorHeight = 0.0;
	
	private Text floorHeightText = null;
	private Button floorEnabledButton = null;
	
	public FloorConfigureDialog(Shell shell) {
		super(shell);
	}
	
	@Override
	protected Control createDialogArea(Composite parent) {
		Composite composite = (Composite) super.createDialogArea(parent);
		Label label = new Label(composite, SWT.WRAP);
        label.setText("Configure floor");
        GridData data = new GridData(GridData.GRAB_HORIZONTAL
                | GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
                | GridData.VERTICAL_ALIGN_CENTER);
		
        data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
        label.setLayoutData(data);
        label.setFont(parent.getFont());
        floorEnabledButton = new Button(composite,SWT.CHECK);
        floorEnabledButton.setText("Enabled");
        label = new Label(composite, SWT.WRAP);
        label.setText("Height");
        label.setLayoutData(data);
        label.setFont(parent.getFont());
        floorHeightText = new Text(composite,SWT.NONE);
		
		
        floorHeightText.addKeyListener(this);
		floorEnabledButton.addSelectionListener(this);
		floorEnabledButton.setSelection(floorEnabled);
		floorHeightText.setText(Double.toString(floorHeight));
		
		return composite;
	}
	
	@Override
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);
		newShell.setText("Configure floor");
	}
	
	public void keyPressed(KeyEvent e) {
		
	}
	
	public void keyReleased(KeyEvent e) {
		boolean ok = true;
		try {
			floorHeight = Double.parseDouble(floorHeightText.getText());	
		} catch (NumberFormatException err) {
			ok = false;
		}
		if (ok) {
			this.getButton(IDialogConstants.OK_ID).setEnabled(true);
		} else {
			this.getButton(IDialogConstants.OK_ID).setEnabled(false);
		}
	}
	
	public void widgetDefaultSelected(SelectionEvent e) {
		
	}
	
	public void widgetSelected(SelectionEvent e) {
		floorEnabled = floorEnabledButton.getSelection();
	}

	public boolean isFloorEnabled() {
		return floorEnabled;
	}

	public double getFloorHeight() {
		return floorHeight;
	}

}