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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ui.widgets;
import org.eclipse.swt.SWT;
import org.eclipse.swt.accessibility.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;
public class SelectableFormLabel extends FormLabel {
private boolean hasFocus;
public boolean getSelection() {
return hasFocus;
}
/**
* Constructor for SelectableFormLabel
*/
public SelectableFormLabel(Composite parent, int style) {
super(parent, style);
addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.character == '\r') {
// Activation
notifyListeners(SWT.DefaultSelection);
}
}
});
addListener(SWT.Traverse, new Listener () {
public void handleEvent(Event e) {
switch (e.detail) {
case SWT.TRAVERSE_PAGE_NEXT:
case SWT.TRAVERSE_PAGE_PREVIOUS:
case SWT.TRAVERSE_ARROW_NEXT:
case SWT.TRAVERSE_ARROW_PREVIOUS:
case SWT.TRAVERSE_RETURN:
e.doit = false;
return;
}
e.doit = true;
}
});
addFocusListener(new FocusListener() {
public void focusGained(FocusEvent e) {
if (!hasFocus) {
hasFocus=true;
notifyListeners(SWT.Selection);
redraw();
}
}
public void focusLost(FocusEvent e) {
if (hasFocus) {
hasFocus=false;
notifyListeners(SWT.Selection);
redraw();
}
}
});
textMarginWidth = 1;
textMarginHeight = 1;
}
protected void initAccessible() {
Accessible accessible = getAccessible();
accessible.addAccessibleListener(new AccessibleAdapter() {
public void getName(AccessibleEvent e) {
e.result = getText();
}
public void getHelp(AccessibleEvent e) {
e.result = getToolTipText();
}
});
accessible
.addAccessibleControlListener(new AccessibleControlAdapter() {
public void getChildAtPoint(AccessibleControlEvent e) {
Point pt = toControl(new Point(e.x, e.y));
e.childID =
(getBounds().contains(pt))
? ACC.CHILDID_SELF
: ACC.CHILDID_NONE;
}
public void getLocation(AccessibleControlEvent e) {
Rectangle location = getBounds();
Point pt = toDisplay(new Point(location.x, location.y));
e.x = pt.x;
e.y = pt.y;
e.width = location.width;
e.height = location.height;
}
public void getChildCount(AccessibleControlEvent e) {
e.detail = 0;
}
public void getRole(AccessibleControlEvent e) {
e.detail = ACC.ROLE_PUSHBUTTON;
}
public void getState(AccessibleControlEvent e) {
e.detail = SelectableFormLabel.this.getSelection()?ACC.STATE_SELECTED:ACC.STATE_NORMAL;
}
});
}
private void notifyListeners(int eventType) {
Event event = new Event();
event.type = eventType;
event.widget = this;
notifyListeners(eventType, event);
}
protected void paint(PaintEvent e) {
super.paint(e);
if (hasFocus) {
GC gc = e.gc;
Point size = getSize();
gc.setForeground(getForeground());
gc.drawFocus(0, 0, size.x, size.y);
}
}
public void addSelectionListener(SelectionListener listener) {
checkWidget ();
if (listener == null) return;
TypedListener typedListener = new TypedListener (listener);
addListener (SWT.Selection,typedListener);
addListener (SWT.DefaultSelection,typedListener);
}
public void removeSelectionListener(SelectionListener listener) {
checkWidget ();
if (listener == null) return;
removeListener (SWT.Selection, listener);
removeListener (SWT.DefaultSelection, listener);
}
}
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