com.ebmwebsourcing.petals.common.internal.provisional.swt.ImageToolitp.java Source code

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Here is the source code for com.ebmwebsourcing.petals.common.internal.provisional.swt.ImageToolitp.java

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/******************************************************************************
 * Copyright (c) 2010-2013, Linagora
 *
 * 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:
 *       Linagora - initial API and implementation
 *******************************************************************************/

package com.ebmwebsourcing.petals.common.internal.provisional.swt;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.window.ToolTip;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;

/**
 * A tool tip to display an image and that reacts to user clicks.
 * @author Vincent Zurczak - EBM WebSourcing
 */
public class ImageToolitp extends ToolTip {

    private final ImageDescriptor desc;
    private Image img;

    /**
     * Constructor.
     * @param control
     * @param desc (not null)
     */
    public ImageToolitp(Control control, ImageDescriptor desc) {
        super(control, ToolTip.RECREATE, true);
        this.desc = desc;
    }

    /* (non-Jsdoc)
     * @see org.eclipse.jface.window.ToolTip
     * #createToolTipContentArea(org.eclipse.swt.widgets.Event, org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Composite createToolTipContentArea(Event event, Composite parent) {

        Composite container = new Composite(parent, SWT.NONE);
        container.setLayout(new FillLayout());

        Label label = new Label(container, SWT.NONE);
        this.img = this.desc.createImage();
        label.setImage(this.img);

        container.setSize(this.img.getBounds().width, this.img.getBounds().height);

        return container;
    }

    /**
     * Disposes the created resources.
     */
    public void dispose() {

        if (this.img != null)
            this.img.dispose();
    }
}