verbtoolbaraction.java

SWT开发的Java调用COM的工具集

/*
 * Copyright (c) 2007 Software Wizards Pty Ltd, Victoria, Australia.
 * mailto:[e-mail]. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted. See the GNU General Public License
 * for more details.
 *
 * Redistribution of the SWTtoCOM software is not permitted as part of any
 * commercial product. Licensing terms for such distribution may be
 * obtained from the copyright holder.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package au.com.swz.swttocom.example.win32explorer.views;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.PlatformUI;

import au.com.swz.swttocom.example.win32explorer.shell.FolderItemVerb;

public class VerbToolbarAction extends Action {
	private String verbName;
	private FolderItemVerb folderItemVerb;
	
	VerbToolbarAction(String verbName, int shellImageIndex) {
		this.verbName = verbName;
		setText(verbName);
		setToolTipText(verbName);
		if (shellImageIndex > 0) {
			Image image = Utils.extractShell32Image(shellImageIndex);
			if (image != null) {
				setImageDescriptor(ImageDescriptor.createFromImage(image));
				image.dispose();
			}
		}
	}

	VerbToolbarAction(String verbName, String sharedImageName) {
		this.verbName = verbName;
		setText(verbName);
		setToolTipText(verbName);
		if (sharedImageName != null) {
			setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(sharedImageName));
		}
	}

	public void reset() {
		folderItemVerb = null;
	}
	
	public void setFolderItemVerb(String name, FolderItemVerb verb) {
		if (name.equalsIgnoreCase(verbName)) {
			folderItemVerb = verb;
		}
	}

	public void determineEnabled() {
		if (folderItemVerb == null) {
			setEnabled(false);
		} else {
			setEnabled(true);
		}
	}
	
	public void run() {
		if (folderItemVerb != null) {
			folderItemVerb.doIt();
		}
	}
}