addressbar.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.browser;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

public class AddressBar {
	
	private static final Image ICON = ImageDescriptor.createFromFile(
			SWTBrowser.class, "actions/images/go.gif").createImage(); //$NON-NLS-1$
	
	private SWTBrowser browserManager;
	private Text addressText;

	public AddressBar(SWTBrowser browserManager) {
		this.browserManager = browserManager;
	}
	
	
	public Composite createComposite(Composite parent) {
		Composite client = new Composite(parent, SWT.NONE);
		GridLayout gridLayout = new GridLayout(1, true);
		gridLayout.marginWidth = 2;
		gridLayout.marginHeight = 2;
		gridLayout.numColumns = 3;
		gridLayout.makeColumnsEqualWidth = false;
		gridLayout.horizontalSpacing = 2;
		gridLayout.verticalSpacing = 0;
		client.setLayout(gridLayout);
		
		Label label = new Label(client, SWT.LEFT);
		GridData layoutData = new GridData();
		layoutData.verticalAlignment = GridData.CENTER;
		layoutData.horizontalAlignment = GridData.BEGINNING;
		layoutData.widthHint = -1;
		layoutData.heightHint = -1;
		layoutData.horizontalIndent = 0;
		layoutData.horizontalSpan = 1;
		layoutData.verticalSpan = 1;
		layoutData.grabExcessHorizontalSpace = false;
		layoutData.grabExcessVerticalSpace = false;
		label.setLayoutData(layoutData);
		label.setText("Address");
		
		addressText = new Text(client, SWT.FLAT|SWT.BORDER);
		layoutData = new GridData();
		layoutData.verticalAlignment = GridData.CENTER;
		layoutData.horizontalAlignment = GridData.FILL;
		layoutData.widthHint = -1;
		layoutData.heightHint = -1;
		layoutData.horizontalIndent = 0;
		layoutData.horizontalSpan = 1;
		layoutData.verticalSpan = 1;
		layoutData.grabExcessHorizontalSpace = true;
		layoutData.grabExcessVerticalSpace = true;
		addressText.setLayoutData(layoutData);
		addressText.addKeyListener(new KeyAdapter() {
			public void keyPressed(KeyEvent e) {
				if (e.character == SWT.CR) {
					navigate();
				}
			}
		});

		Button goBtn = new Button(client, SWT.PUSH|SWT.FLAT);
		goBtn.setImage(ICON);
		layoutData = new GridData();
		layoutData.verticalAlignment = GridData.CENTER;
		layoutData.horizontalAlignment = GridData.CENTER;
		layoutData.widthHint = -1;
		layoutData.heightHint = -1;
		layoutData.horizontalIndent = 0;
		layoutData.horizontalSpan = 1;
		layoutData.verticalSpan = 1;
		layoutData.grabExcessHorizontalSpace = false;
		layoutData.grabExcessVerticalSpace = false;
		goBtn.setLayoutData(layoutData);
		goBtn.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				navigate();
			}
		});
		
		return client;
	}

	public void setAddress(String text) {
		addressText.setText(text);
	}
	
	private void navigate() {
		BrowserTabItem tabItem = browserManager.getSelection();
		if (tabItem != null) {
			tabItem.navigate(addressText.getText());
		}
	}
}