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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.ui.swt;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseTrackAdapter;
import org.eclipse.swt.events.MouseTrackListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.forms.widgets.FormToolkit;
/**
* Creates a hyperlink label that when enabled, shows as blue and changes cursor when hover over and when disabled,
* shows in black with no cursor change. To add listener, use: link.addListener(SWT.MouseUp, new Listener() { public
* void handleEvent(org.eclipse.swt.widgets.Event event) { System.out.println("Link Selected"); } });
*
* @author Donald G. Dunne
*/
public class HyperLinkLabel extends Label {
private boolean hyperEnabled = true;
/**
* Amount of the margin width around the hyperlink (default is 1).
*/
protected int marginWidth = 1;
/**
* Amount of the margin height around the hyperlink (default is 1).
*/
protected int marginHeight = 1;
public HyperLinkLabel(Composite parent, int style) {
this(null, parent, style, null);
}
public HyperLinkLabel(FormToolkit toolkit, Composite parent, int style) {
this(toolkit, parent, style, null);
}
public HyperLinkLabel(FormToolkit toolkit, Composite parent, int style, String text) {
super(parent, style);
if (text != null) {
setText(text);
}
if (toolkit != null) {
toolkit.adapt(this, true, true);
}
refresh();
}
public static void adapt(final Label label) {
label.setForeground(Displays.getSystemColor(SWT.COLOR_BLUE));
label.addMouseTrackListener(new MouseTrackAdapter() {
@Override
public void mouseEnter(MouseEvent e) {
label.setCursor(CursorManager.getCursor(SWT.CURSOR_HAND));
}
@Override
public void mouseExit(MouseEvent e) {
label.setCursor(null);
};
});
}
MouseTrackListener listener = new MouseTrackAdapter() {
@Override
public void mouseEnter(MouseEvent e) {
setCursor(CursorManager.getCursor(SWT.CURSOR_HAND));
}
@Override
public void mouseExit(MouseEvent e) {
setCursor(null);
};
};
public void refresh() {
if (hyperEnabled) {
setForeground(Displays.getSystemColor(SWT.COLOR_BLUE));
removeMouseTrackListener(listener);
addMouseTrackListener(listener);
} else {
setForeground(Displays.getSystemColor(SWT.COLOR_BLACK));
removeMouseTrackListener(listener);
}
}
public boolean isHyperEnabled() {
return hyperEnabled;
}
public void setHyperEnabled(boolean hyperEnabled) {
this.hyperEnabled = hyperEnabled;
refresh();
}
}
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