org.dyno.visual.swing.base.ResourceImage.java Source code

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Here is the source code for org.dyno.visual.swing.base.ResourceImage.java

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/************************************************************************************
 * Copyright (c) 2008 William Chen.                                                 *
 *                                                                                  *
 * 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 *
 *                                                                                  *
 * Use is subject to the terms of Eclipse Public License v1.0.                      *
 *                                                                                  *
 * Contributors:                                                                    * 
 *     William Chen - initial API and implementation.                               *
 ************************************************************************************/

package org.dyno.visual.swing.base;

import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.ImageCapabilities;
import java.awt.Toolkit;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;

import org.dyno.visual.swing.VisualSwingPlugin;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;

public class ResourceImage extends Image {
    private String path;
    private Image image;

    public ResourceImage(Image image, String path) {
        this.path = path;
        this.image = image;
        if (image == null)
            throw new IllegalArgumentException(Messages.RESOURCE_IMAGE_CANNOT_FIND_IMG_PATH + path);
    }

    public ResourceImage(String p) {
        this.path = p;
        IJavaProject prj = VisualSwingPlugin.getCurrentProject();
        IProject project = prj.getProject();
        IResource resource = project.findMember(new Path(p));
        if (resource == null) {
            IPackageFragmentRoot[] roots;
            try {
                roots = prj.getPackageFragmentRoots();
                for (IPackageFragmentRoot root : roots) {
                    if (!root.isArchive()) {
                        String src = root.getElementName();
                        src = "/" + src + p; //$NON-NLS-1$
                        resource = project.findMember(new Path(src));
                        if (resource != null) {
                            String ext = resource.getFileExtension();
                            if (ext.equals("gif") || ext.equals("png") || ext.equals("jpg")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
                                IPath fullPath = project.getWorkspace().getRoot().getRawLocation()
                                        .append(resource.getFullPath());
                                String fullpath = fullPath.toString();
                                image = Toolkit.getDefaultToolkit().getImage(fullpath);
                            } else {
                                break;
                            }
                        }
                    }
                }
            } catch (JavaModelException e) {
                VisualSwingPlugin.getLogger().error(e);
            }
        }
        if (image == null)
            throw new IllegalArgumentException(Messages.RESOURCE_IMAGE_CANNOT_FIND_IMG_PATH + p);
    }

    public String toString() {
        return path;
    }

    @Override
    public Graphics getGraphics() {
        return image.getGraphics();
    }

    @Override
    public int getHeight(ImageObserver observer) {
        return image.getWidth(observer);
    }

    @Override
    public Object getProperty(String name, ImageObserver observer) {
        return image.getProperty(name, observer);
    }

    @Override
    public ImageProducer getSource() {
        return image.getSource();
    }

    @Override
    public int getWidth(ImageObserver observer) {
        return image.getWidth(observer);
    }

    @Override
    public void flush() {
        image.flush();
    }

    @Override
    public float getAccelerationPriority() {
        return image.getAccelerationPriority();
    }

    @Override
    public ImageCapabilities getCapabilities(GraphicsConfiguration gc) {
        return image.getCapabilities(gc);
    }

    @Override
    public Image getScaledInstance(int width, int height, int hints) {
        return image.getScaledInstance(width, height, hints);
    }

    @Override
    public void setAccelerationPriority(float priority) {
        image.setAccelerationPriority(priority);
    }

    public Image getDelegateImage() {
        return image;
    }
}