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

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Here is the source code for org.dyno.visual.swing.base.ResourceIcon.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.Component;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;

import javax.swing.Icon;
import javax.swing.ImageIcon;

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 ResourceIcon implements Icon {
    private String path;
    private Icon icon;

    public ResourceIcon(Icon icon, String path) {
        this.path = path;
        this.icon = icon;
    }

    public ResourceIcon(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;
                        resource = project.findMember(new Path(src));
                        if (resource != null) {
                            String ext = resource.getFileExtension();
                            if (ext.equals("gif") || ext.equals("png") || ext.equals("jpg")) {
                                IPath fullPath = project.getWorkspace().getRoot().getRawLocation()
                                        .append(resource.getFullPath());
                                String fullpath = fullPath.toString();
                                Image image = Toolkit.getDefaultToolkit().getImage(fullpath);
                                icon = new ImageIcon(image);
                            } else {
                                break;
                            }
                        }
                    }
                }
            } catch (JavaModelException e) {
                VisualSwingPlugin.getLogger().error(e);
            }
        }
    }

    public int getIconHeight() {
        return icon == null ? 0 : icon.getIconHeight();
    }

    public int getIconWidth() {
        return icon == null ? 0 : icon.getIconWidth();
    }

    public void paintIcon(Component c, Graphics g, int x, int y) {
        if (icon == null) {
        } else {
            icon.paintIcon(c, g, x, y);
        }
    }

    public String toString() {
        return path;
    }
}