fr.lip6.move.coloane.core.model.AttributeGraphicInfo.java Source code

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Here is the source code for fr.lip6.move.coloane.core.model.AttributeGraphicInfo.java

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/**
 * Copyright (c) 2006-2010 MoVe - Laboratoire d'Informatique de Paris 6 (LIP6).
 * 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:
 *   Jean-Baptiste VORON (LIP6) - Project Head / Initial contributor
 *   Clment DMOULINS (LIP6) - Project Manager
 *
 * Official contacts:
 *   coloane@lip6.fr
 *   http://coloane.lip6.fr
 */
package fr.lip6.move.coloane.core.model;

import fr.lip6.move.coloane.interfaces.model.IAttribute;
import fr.lip6.move.coloane.interfaces.model.IAttributeGraphicInfo;
import fr.lip6.move.coloane.interfaces.model.ILocationInfo;

import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;

/**
 * Graphical description of an attribute
 *
 * @author Jean-Baptiste Voron
 * @author Clment Dmoulins
 */
public class AttributeGraphicInfo implements IAttributeGraphicInfo {
    /** The attribute model object */
    private final IAttribute attribute;

    /** Graphical coordinates */
    private int x = 0;
    private int y = 0;

    /**
     * Build an attribute graphical description
     * @param modelAttribute the attribute which is concerned by this graphical description
     */
    public AttributeGraphicInfo(IAttribute modelAttribute) {
        this.attribute = modelAttribute;
    }

    /** {@inheritDoc} */
    @Override
    public final Point getLocation() {
        return new Point(this.x, this.y);
    }

    /**
     * Set the location
     * @param x x position
     * @param y y position
     */
    private void setLocation(int x, int y) {
        Point oldValue = new Point(this.x, this.y);
        this.x = x;
        this.y = y;
        Point newValue = new Point(this.x, this.y);

        // Throw an event ! (This event will be caught by the controller, and will eventually trigger a view update...)
        ((AbstractPropertyChange) this.attribute).firePropertyChange(ILocationInfo.LOCATION_PROP, oldValue,
                newValue);
    }

    /** {@inheritDoc} */
    @Override
    public final void setLocation(Point location) {
        if (location == null) {
            return;
        }
        setLocation(location.x, location.y);
    }

    /** {@inheritDoc} */
    @Override
    public final void resetLocation() {
        setLocation(-1, -1);
    }

    /** {@inheritDoc} */
    @Override
    public final Color getBackground() {
        return ColorConstants.white;
    }

    /** {@inheritDoc} */
    @Override
    public final Color getForeground() {
        return ColorConstants.black;
    }

    /** {@inheritDoc} */
    @Override
    public final void setBackground(Color background) {
        return;
    }

    /** {@inheritDoc} */
    @Override
    public final void setForeground(Color foreground) {
        return;
    }

    /** {@inheritDoc} */
    @Override
    public final Dimension getSize() {
        String text = attribute.getValue();
        Font font = JFaceResources.getDefaultFont();
        return FigureUtilities.getTextExtents(text, font);
    }

    /** {@inheritDoc} */
    @Override
    public final boolean isVisible() {
        return !attribute.getAttributeFormalism().isDrawable();
    }
}