/* 
 * Copyright (c) 2008 Stiftung Deutsches Elektronen-Synchrotron, 
 * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
 *
 * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS. 
 * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED 
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND 
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR 
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE 
 * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR 
 * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. 
 * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
 * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 
 * OR MODIFICATIONS.
 * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION, 
 * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS 
 * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY 
 * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
 */
 package org.csstudio.sds.components.ui.internal.editparts;

import org.csstudio.sds.components.model.ArcModel;
import org.csstudio.sds.components.ui.internal.figures.RefreshableArcFigure;
import org.csstudio.sds.ui.editparts.AbstractWidgetEditPart;
import org.csstudio.sds.ui.editparts.IWidgetPropertyChangeHandler;
import org.eclipse.draw2d.IFigure;
import org.eclipse.swt.graphics.Color;

/**
 * EditPart controller for the arc widget.
 * 
 * @author jbercic
 * 
 */
public final class ArcEditPart extends AbstractWidgetEditPart {

	/**
	 * Returns the casted model. This is just for convenience.
	 * 
	 * @return the casted {@link ArcModel}
	 */
	@Override
	protected ArcModel getCastedModel() {
		return (ArcModel) getModel();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected IFigure doCreateFigure() {
		ArcModel model = getCastedModel();
		// create AND initialize the view properly
		final RefreshableArcFigure figure = new RefreshableArcFigure();
		
		figure.setTransparent(model.getTransparent());
		figure.setBorderWidth(model.getBorderWidth());
		figure.setStartAngle(model.getStartAngle());
		figure.setAngle(model.getAngle());
		figure.setLineWidth(model.getLineWidth());
		figure.setFill(model.getFill());
		figure.setFillColor(getModelColor(ArcModel.PROP_FILLCOLOR));
		
		return figure;
	}
	
	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void registerPropertyChangeHandlers() {
		// changes to the transparency property
		IWidgetPropertyChangeHandler handle = new IWidgetPropertyChangeHandler() {
			@Override
			public boolean handleChange(final Object oldValue, final Object newValue,
					final IFigure figure) {
				RefreshableArcFigure arcFigure = (RefreshableArcFigure) figure;
				arcFigure.setTransparent((Boolean)newValue);
				return true;
			}
		};
		setPropertyChangeHandler(ArcModel.PROP_TRANSPARENT, handle);
		
		// changes to the border width property
		handle = new IWidgetPropertyChangeHandler() {
			@Override
			public boolean handleChange(final Object oldValue, final Object newValue,
					final IFigure figure) {
				RefreshableArcFigure arcFigure = (RefreshableArcFigure) figure;
				arcFigure.setBorderWidth((Integer)newValue);
				return true;
			}
		};
		setPropertyChangeHandler(ArcModel.PROP_BORDER_WIDTH, handle);
		
		// changes to the start angle property
		handle = new IWidgetPropertyChangeHandler() {
			@Override
			public boolean handleChange(final Object oldValue, final Object newValue,
					final IFigure figure) {
				RefreshableArcFigure arcFigure = (RefreshableArcFigure) figure;
				arcFigure.setStartAngle((Integer)newValue);
				return true;
			}
		};
		setPropertyChangeHandler(ArcModel.PROP_STARTANGLE, handle);
		
		// changes to the angle property
		handle = new IWidgetPropertyChangeHandler() {
			@Override
			public boolean handleChange(final Object oldValue, final Object newValue,
					final IFigure figure) {
				RefreshableArcFigure arcFigure = (RefreshableArcFigure) figure;
				arcFigure.setAngle((Integer)newValue);
				return true;
			}
		};
		setPropertyChangeHandler(ArcModel.PROP_ANGLE, handle);
		
		// changes to the line width property
		handle = new IWidgetPropertyChangeHandler() {
			@Override
			public boolean handleChange(final Object oldValue, final Object newValue,
					final IFigure figure) {
				RefreshableArcFigure arcFigure = (RefreshableArcFigure) figure;
				arcFigure.setLineWidth((Integer)newValue);
				return true;
			}
		};
		setPropertyChangeHandler(ArcModel.PROP_LINEWIDTH, handle);
		
		// changes to the filled property
		handle = new IWidgetPropertyChangeHandler() {
			@Override
			public boolean handleChange(final Object oldValue, final Object newValue,
					final IFigure figure) {
				RefreshableArcFigure arcFigure = (RefreshableArcFigure) figure;
				arcFigure.setFill((Boolean)newValue);
				return true;
			}
		};
		setPropertyChangeHandler(ArcModel.PROP_FILLED, handle);
		
		// fill
		setPropertyChangeHandler(ArcModel.PROP_FILLCOLOR, new ColorChangeHandler<RefreshableArcFigure>(){
			@Override
			protected void doHandle(RefreshableArcFigure figure, Color color) {
				figure.setFillColor(color);
			}
		});
	}
}