Combo: select(int index) : Combo « org.eclipse.swt.widgets « Java by API






Combo: select(int index)


import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class MainClass {

  public static void main(String[] a) {
    Display d = new Display();
    Shell s = new Shell(d);

    s.setSize(250, 200);
    s.setText("A KeyListener Example");
    s.setLayout(new RowLayout());

    final Combo c = new Combo(s, SWT.DROP_DOWN | SWT.BORDER);
    c.add("A");
    c.add("B");
    c.add("C");
    c.add("D");

    c.addKeyListener(new KeyListener() {
      String selectedItem = "";

      public void keyPressed(KeyEvent e) {
        if (c.getText().length() > 0) {
          return;
        }
        String key = Character.toString(e.character);
        String[] items = c.getItems();
        for (int i = 0; i < items.length; i++) {
          if (items[i].toLowerCase().startsWith(key.toLowerCase())) {
            c.select(i);
            selectedItem = items[i];
            return;
          }
        }
      }

      public void keyReleased(KeyEvent e) {
        if (selectedItem.length() > 0)
          c.setText(selectedItem);
        selectedItem = "";
      }
    });
    s.open();
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();

  }
}

           
       








Related examples in the same category

1.new Combo(Shell shell, SWT.DROP_DOWN)
2.new Combo(Shell shell, SWT.DROP_DOWN | SWT.READ_ONLY)
3.new Combo(Shell shell, SWT.SIMPLE)
4.new Combo(Composite parent, int style)(SWT.DROP_DOWN | SWT.BORDER)
5.new Combo(Shell s, SWT.READ_ONLY)
6.Combo: add(String sel)
7.Combo: addSelectionListener(SelectionListener lis)
8.Combo: getItems()
9.Combo: getText()
10.Combo: setEnabled(boolean b)
11.Combo: setItems(String[] values)