cideplus.ui.astview.ASTViewImages.java Source code

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Here is the source code for cideplus.ui.astview.ASTViewImages.java

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/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package cideplus.ui.astview;

import java.net.URL;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.resource.ImageDescriptor;
import org.osgi.framework.Bundle;

public class ASTViewImages {

    private static final IPath ICONS_PATH = new Path("$nl$/icons"); //$NON-NLS-1$

    public static final String COLLAPSE = "collapseall.gif"; //$NON-NLS-1$
    public static final String EXPAND = "expandall.gif"; //$NON-NLS-1$
    public static final String LINK_WITH_EDITOR = "synced.gif"; //$NON-NLS-1$

    public static final String SETFOCUS = "setfocus.gif"; //$NON-NLS-1$
    public static final String REFRESH = "refresh.gif"; //$NON-NLS-1$
    public static final String CLEAR = "clear.gif"; //$NON-NLS-1$

    public static final String ADD_TO_TRAY = "add.gif"; //$NON-NLS-1$

    //---- Helper methods to access icons on the file system --------------------------------------

    public static void setImageDescriptors(IAction action, String type) {
        ImageDescriptor id = create("d", type); //$NON-NLS-1$
        if (id != null)
            action.setDisabledImageDescriptor(id);

        id = create("c", type); //$NON-NLS-1$
        if (id != null) {
            action.setHoverImageDescriptor(id);
            action.setImageDescriptor(id);
        } else {
            action.setImageDescriptor(ImageDescriptor.getMissingImageDescriptor());
        }
    }

    private static ImageDescriptor create(String prefix, String name) {
        IPath path = ICONS_PATH.append(prefix).append(name);
        return createImageDescriptor(ASTViewPlugin.getDefault().getBundle(), path);
    }

    /*
     * Since 3.1.1. Load from icon paths with $NL$
     */
    public static ImageDescriptor createImageDescriptor(Bundle bundle, IPath path) {
        URL url = FileLocator.find(bundle, path, null);
        if (url != null) {
            return ImageDescriptor.createFromURL(url);
        }
        return null;
    }
}