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/******************************************************************************
* Copyright (c) 1998, 2004 Jackwind Li Guojie
* All right reserved.
*
* Created on Jan 24, 2004 10:22:42 PM by JACK
* $Id$
*
* visit: http://www.asprise.com/swt
*****************************************************************************/
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.TraverseEvent;
import org.eclipse.swt.events.TraverseListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
public class FocusTraversal {
Display display = new Display();
Shell shell = new Shell(display);
public FocusTraversal() {
init();
shell.pack();
shell.open();
//textUser.forceFocus();
// Set up the event loop.
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
// If no more entries in event queue
display.sleep();
}
}
display.dispose();
}
private void init() {
shell.setLayout(new RowLayout());
Composite composite1 = new Composite(shell, SWT.BORDER);
composite1.setLayout(new RowLayout());
composite1.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
Button button1 = new Button(composite1, SWT.PUSH);
button1.setText("Button1");
List list = new List(composite1, SWT.MULTI | SWT.BORDER);
list.setItems(new String[]{"Item-1", "Item-2", "Item-3"});
Button radioButton1 = new Button(composite1, SWT.RADIO);
radioButton1.setText("radio-1");
Button radioButton2 = new Button(composite1, SWT.RADIO);
radioButton2.setText("radio-2");
Composite composite2 = new Composite(shell, SWT.BORDER);
composite2.setLayout(new RowLayout());
composite2.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
Button button2 = new Button(composite2, SWT.PUSH);
button2.setText("Button2");
final Canvas canvas = new Canvas(composite2, SWT.NULL);
canvas.setSize(50, 50);
canvas.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));
Combo combo = new Combo(composite2, SWT.DROP_DOWN);
combo.add("combo");
combo.select(0);
canvas.addKeyListener(new KeyListener() {
public void keyPressed(KeyEvent e) {
GC gc = new GC(canvas);
// Erase background first.
Rectangle rect = canvas.getClientArea();
gc.fillRectangle(rect.x, rect.y, rect.width, rect.height);
Font font = new Font(display, "Arial", 32, SWT.BOLD );
gc.setFont(font);
gc.drawString("" + e.character, 15, 10);
gc.dispose();
font.dispose();
}
public void keyReleased(KeyEvent e) {
}
});
canvas.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if(e.detail == SWT.TRAVERSE_TAB_NEXT ||
e.detail == SWT.TRAVERSE_TAB_PREVIOUS)
e.doit = true;
}
});
composite1.setTabList(new Control[]{button1, list});
composite2.setTabList(new Control[]{button2, canvas, combo});
shell.setTabList(new Control[]{composite2, composite1});
}
public static void main(String[] args) {
new FocusTraversal();
}
}
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