public class AutoCompleteComboMain {
static final Display display =
new Display();
static final Shell shell =
new Shell(display);
static String[] items =
new String[] {
"Monday"
,
"Tuesday"
,
"Wednesday"
,
"Thursday"
,
"Friday"
,
"Saturday"
,
"Sunday" };
public static void main(String[] args) {
shell.setText(
"SWT"
);
shell.setLayout(
new GridLayout());
Combo combo =
new Combo(shell, SWT.BORDER);
for (
int i =
0
; i < items.length; i++) {
combo.add(items[i]);
}
ComboUtil.addAutoCompleteFeature(combo);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
|
The key Comboutil code is as follows:
?
123456789101112131415161718192021222324252627282930313233343536373839 |
public class ComboUtil {
public static void addAutoCompleteFeature(Combo combo) {
// Add a key listener
combo.addKeyListener(
new KeyAdapter() {
public void keyReleased(KeyEvent keyEvent) {
Combo cmb = ((Combo) keyEvent.getSource());
setClosestMatch(cmb);
}
// Move the highlight back by one character for backspace
public void keyPressed(KeyEvent keyEvent) {
if (keyEvent.keyCode == SWT.BS) {
Combo cmb = ((Combo) keyEvent.getSource());
Point pt = cmb.getSelection();
cmb.setSelection(
new Point(Math.max(
0
, pt.x -
1
), pt.y));
}
}
private void setClosestMatch(Combo combo) {
String str = combo.getText();
String[] cItems = combo.getItems();
// Find Item in Combo Items. If full match returns index
int index = -
1
;
for (
int i =
0
; i < cItems.length; i++) {
if (cItems[i].toLowerCase().startsWith(str.toLowerCase())) {
index = i;
break
;
}
}
if (index != -
1
) {
Point pt = combo.getSelection();
combo.select(index);
combo.setText(cItems[index]);
combo.setSelection(
new Point(pt.x, cItems[index].length()));
}
}
});
}
|
SWT Combo Auto-complete