CODEWITHSUNDEEP
javaformsswttabbing
Mydisname
Mydisname

Reputation: 213

Tabbing from field to field doesn't work (aka "tab order" in Java SWT)

I have a Java SWT desktop application with various pages etc. pp. It works perfectly well, except the tab order - not at all. When I am in "field 1" and press Tab on my keyboard, I want the application to jump to "field 2", so I don't have to click to the second field after I entered the information in the first one.

Generally there is the "setTabList", where you can set the right order for "tabbing through the form". My problem is I don't even need to set the order right, tabbing doesn't work at all.

When I am in a field of my form and press Tab, for a millisecond I can see the Windows "working circle" (or whatever it is called) and nothing happens. The cursor stays exactly at the same position. It won't jump to another field and I have no idea why.

Generally my code: 

public void createControl(Composite parent) {
  Composite container = new Composite(parent, SWT.BORDER);
  setControl(container);

  fieldOne = new StyledText(container, SWT.NONE);
  fieldOne.setBounds(whatever);
  fieldOne.addKeyListener(new KeyAdapter() {
    public void keyReleased(KeyEvent arg0) {
      txtChanged();
    }
  });

  fieldTwo = new StyledText(container, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
  fieldOne.setBounds(whatever);
  fieldOne.addKeyListener(new KeyAdapter() {
    public void keyReleased(KeyEvent arg0) {
      txtChanged();
    }
  });

  Control[] controls = { fieldOne, fieldTwo };
  container.setTabList(controls);
}

Even if I leave the Control[] and container.setTabList rows out, nothing happens.

Any ideas?

Upvotes: 1

Views: 1050

Answers (1)

greg-449
greg-449

Reputation: 111217

In a StyledText control Tab normally just moves the cursor to the next tab stop inside the control. Ctrl+Tab moves to the next control.

You can override this with a traverse listener:

fieldOne.addTraverseListener(new TraverseListener() {
  @Override
  public void keyTraversed(final TraverseEvent e) {
    if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
      e.doit = true;
    }
  }
});

It is also possible that your key listener is interfering with normal operation. Use a ModifyListener if all you want to know is that the text has changed.

Upvotes: 2

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