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/*******************************************************************************
* Copyright (c) 2003 - 2005 University Of British Columbia 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:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylar.bugzilla.ui;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.mylar.tasklist.TaskListImages.MylarTasklistOverlayDescriptor;
import org.eclipse.swt.graphics.Image;
/**
* This class provides convenience access to many of the resources required
* by the workbench. The class stores some images as descriptors, and
* some are stored as real Images in the registry. This is a pure
* speed-space tradeoff. The trick for users of this class is that
* images obtained from the registry (using getImage()), don't require
* disposal since they are shared, while images obtained using
* getImageDescriptor() will require disposal. Consult the declareImages
* method to see if a given image is declared as a registry image or
* just as a descriptor. If you change an image from being stored
* as a descriptor to a registry image, or vice-versa, make sure to
* check all users of the image to ensure they are calling
* the correct getImage... method and handling disposal correctly.
*
* Images:
* - use getImage(key) to access cached images from the registry.
* - Less common images are found by calling getImageDescriptor(key)
* where key can be found in IWorkbenchGraphicConstants
*
* This class initializes the image registry by declaring all of the required
* graphics. This involves creating image descriptors describing
* how to create/find the image should it be needed.
* The image is not actually allocated until requested.
*
* Some Images are also made available to other plugins by being
* placed in the descriptor table of the SharedImages class.
*
* Where are the images?
* The images (typically gifs) are found the plugins install directory
*
* How to add a new image
* Place the gif file into the appropriate directories.
* Add a constant to IWorkbenchGraphicConstants following the conventions
* Add the declaration to this file
*/
public class BugzillaImages {
private static Map<ImageDescriptor, Image> imageMap = new HashMap<ImageDescriptor, Image>();
private static final URL baseURL = BugzillaUiPlugin.getDefault().getBundle().getEntry("/icons/");
public static final String T_ELCL = "elcl16";
public static final String T_TOOL = "etool16";
public static final ImageDescriptor IMG_TOOL_ADD_TO_FAVORITES = create(T_ELCL, "bug-favorite.gif");
public static final ImageDescriptor BUG = create(T_ELCL, "bug.gif");
public static final ImageDescriptor BUG_HIT = create(T_ELCL, "bug-small.gif");
public static final ImageDescriptor IMG_COMMENT = create(T_ELCL, "bug-comment.gif");
public static final ImageDescriptor TASK_BUG = create(T_TOOL, "task-bug.gif");
public static final ImageDescriptor OVERLAY_INCOMMING = create(T_ELCL, "overlay-incoming.gif");
public static final ImageDescriptor OVERLAY_OUTGOING = create(T_ELCL, "overlay-outgoing.gif");
public static final ImageDescriptor OVERLAY_CONFLICT = create(T_ELCL, "overlay-conflicting.gif");
public static final ImageDescriptor TASK_BUGZILLA = createWithOverlay(TASK_BUG, null, true);
public static final ImageDescriptor TASK_BUGZILLA_INCOMMING = createWithOverlay(TASK_BUGZILLA, OVERLAY_INCOMMING, true);
public static final ImageDescriptor TASK_BUGZILLA_CONFLICT = createWithOverlay(TASK_BUGZILLA, OVERLAY_CONFLICT, true);
public static final ImageDescriptor TASK_BUGZILLA_OUTGOING = createWithOverlay(TASK_BUGZILLA, OVERLAY_OUTGOING, true);
public static final ImageDescriptor BUGZILLA_HIT = createWithOverlay(BUG_HIT, null, true);
public static final ImageDescriptor BUGZILLA_HIT_INCOMMING = BUGZILLA_HIT;//createWithOverlay(BUGZILLA_HIT, OVERLAY_INCOMMING);
public static final ImageDescriptor TASK_BUGZILLA_NEW = create(T_TOOL, "task-bug-new.gif");
public static final ImageDescriptor CATEGORY_QUERY = create(T_TOOL, "category-query.gif");
public static final ImageDescriptor CATEGORY_QUERY_NEW = create(T_TOOL, "category-query-new.gif");
public static final ImageDescriptor TASK_BUG_REFRESH = create(T_TOOL, "task-bug-refresh.gif");
public static final ImageDescriptor REMOVE_ALL = create("", "remove-all.gif");
public static final ImageDescriptor REMOVE = create("", "remove.gif");
public static final ImageDescriptor SELECT_ALL = create("", "selectAll.gif");
public static final ImageDescriptor OPEN = create("", "openresult.gif");
private static ImageDescriptor create(String prefix, String name) {
try {
return ImageDescriptor.createFromURL(makeIconFileURL(prefix, name));
} catch (MalformedURLException e) {
return ImageDescriptor.getMissingImageDescriptor();
}
}
private static ImageDescriptor createWithOverlay(ImageDescriptor base, ImageDescriptor overlay, boolean top) {
return new MylarTasklistOverlayDescriptor(base, overlay, top);
}
private static URL makeIconFileURL(String prefix, String name) throws MalformedURLException {
if (baseURL == null)
throw new MalformedURLException();
StringBuffer buffer= new StringBuffer(prefix);
if(prefix != "")
buffer.append('/');
buffer.append(name);
return new URL(baseURL, buffer.toString());
}
/**
* Lazily initializes image map.
*/
public static Image getImage(ImageDescriptor imageDescriptor) {
Image image = imageMap.get(imageDescriptor);
if (image == null) {
image = imageDescriptor.createImage();
imageMap.put(imageDescriptor, image);
}
return image;
}
}
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