de.instanttouch.ui.scaffolding.swt.SnakeOverlayIcon.java Source code

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Here is the source code for de.instanttouch.ui.scaffolding.swt.SnakeOverlayIcon.java

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/*******************************************************************************
 * Copyright (c) 2014 Joachim Tessmer.
 * 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:
 *     Joachim Tessmer - initial API and implementation
 ******************************************************************************/
package de.instanttouch.ui.scaffolding.swt;

import org.eclipse.jface.resource.CompositeImageDescriptor;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.Point;

/**
 * An OverlayIcon consists of a main icon and several adornments.
 */
public class SnakeOverlayIcon extends CompositeImageDescriptor {

    static final int DEFAULT_WIDTH = 16;
    static final int DEFAULT_HEIGHT = 16;

    private Point size = null;

    private final ImageData overlay;
    private final ImageData base;

    public SnakeOverlayIcon(ImageDescriptor base, ImageDescriptor overlay) {
        this.base = base.getImageData();
        this.overlay = overlay.getImageData();
        this.size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
    }

    public SnakeOverlayIcon(Image base, Image overlay) {
        this.base = base.getImageData();
        this.overlay = overlay.getImageData();
        this.size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
    }

    protected void drawBottomLeft(ImageData data) {
        drawImage(data, 0, getSize().y - data.height);
    }

    @Override
    protected void drawCompositeImage(int width, int height) {
        drawImage(base, 0, 0);
        drawBottomLeft(overlay);
    }

    @Override
    protected Point getSize() {
        return size;
    }
}