Examples of java.awt.Component.addPropertyChangeListener()

java.awt.Component.addPropertyChangeListener()
Adds a PropertyChangeListener to the listener list. The listener is registered for all bound properties of this class, including the following:
- this Component's font ("font")
- this Component's background color ("background")
- this Component's foreground color ("foreground")
- this Component's focusability ("focusable")
- this Component's focus traversal keys enabled state ("focusTraversalKeysEnabled")
- this Component's Set of FORWARD_TRAVERSAL_KEYS ("forwardFocusTraversalKeys")
- this Component's Set of BACKWARD_TRAVERSAL_KEYS ("backwardFocusTraversalKeys")
- this Component's Set of UP_CYCLE_TRAVERSAL_KEYS ("upCycleFocusTraversalKeys")
- this Component's preferred size ("preferredSize")
- this Component's minimum size ("minimumSize")
- this Component's maximum size ("maximumSize")
- this Component's name ("name")
Note that if this Component is inheriting a bound property, then no event will be fired in response to a change in the inherited property.
If listener is null, no exception is thrown and no action is performed. @param listener the property change listener to be added @see #removePropertyChangeListener @see #getPropertyChangeListeners @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)

  public void test(TestHarness harness) 
  {
    Component c = new Button("ABC");
    harness.check(c.getPreferredSize(), new Dimension(0, 0));
    harness.check(c.isPreferredSizeSet(), false);
    c.addPropertyChangeListener(this);
    c.setPreferredSize(new Dimension(10, 20));
    harness.check(c.getPreferredSize(), new Dimension(10, 20));
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "preferredSize");

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  public void test (TestHarness harness)
  {
    // prepare test component
    Component comp = new TestComponent();
    comp.addPropertyChangeListener(new PropertyChangeListener() {
            // sets <code>propertyName</code> when called
            public void propertyChange(PropertyChangeEvent ev) {
                propertyName = ev.getPropertyName();
            }
        });

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  public void test(TestHarness harness)
  {
    Component c = new Label("ABC");
    harness.check(c.getComponentOrientation(), ComponentOrientation.UNKNOWN);
    c.addPropertyChangeListener(this);
    c.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
    harness.check(c.getComponentOrientation(), ComponentOrientation.LEFT_TO_RIGHT);
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getSource(), c);

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  public void test(TestHarness harness)
  {
    Component c = new Label("ABC");
    harness.check(c.getName() != null);
    c.addPropertyChangeListener(this);
    c.setName("XYZ");
    harness.check(c.getName(), "XYZ");
    harness.check(events.size(), 1);
    PropertyChangeEvent e0 = (PropertyChangeEvent) events.get(0);
    harness.check(e0.getSource(), c);

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  public void test(TestHarness harness) 
  {
    Component c = new Button("ABC");
    harness.check(c.getMaximumSize(), new Dimension(32767, 32767));
    harness.check(c.isMaximumSizeSet(), false);
    c.addPropertyChangeListener(this);
    c.setMaximumSize(new Dimension(10, 20));
    harness.check(c.getMaximumSize(), new Dimension(10, 20));
    harness.check(c.isMaximumSizeSet(), true);
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);

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  public void test(TestHarness harness) 
  {
    Component c = new Button("ABC");
    harness.check(c.getMinimumSize(), new Dimension(0, 0));
    harness.check(c.isMinimumSizeSet(), false);
    c.addPropertyChangeListener(this);
    c.setMinimumSize(new Dimension(10, 20));
    harness.check(c.getMinimumSize(), new Dimension(10, 20));
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "minimumSize");

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