/** Sets or clears the caret in the "Example" widget. */
void setCaret() {
Caret oldCaret = canvas.getCaret();
if (caretButton.getSelection()) {
Caret newCaret = new Caret(canvas, SWT.NONE);
Font font = canvas.getFont();
newCaret.setFont(font);
GC gc = new GC(canvas);
gc.setFont(font);
newCaret.setBounds(1, 1, 1, gc.getFontMetrics().getHeight());
gc.dispose();
canvas.setCaret(newCaret);
canvas.setFocus();
} else {
canvas.setCaret(null);
}
if (oldCaret != null) oldCaret.dispose();
}
/**
* Sets the receiver's size and location to the rectangular area specified by the argument. The
* <code>x</code> and <code>y</code> fields of the rectangle are relative to the receiver's parent
* (or its display if its parent is null).
*
* @param rect the new bounds for the receiver
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setBounds(Rectangle rect) {
if (rect == null) error(SWT.ERROR_NULL_ARGUMENT);
setBounds(rect.x, rect.y, rect.width, rect.height);
}