javax.swing.JButton#setSelected ( )源码实例Demo

/**
 * Constructs a Swing JButton using current builder values. Values that must be set: title,
 * actionlistener
 */
public JButton build() {
  checkNotNull(title);

  final JButton button = new JButton(title);
  Optional.ofNullable(clickAction)
      .ifPresent(listener -> button.addActionListener(e -> clickAction.accept(button)));
  Optional.ofNullable(toolTip).ifPresent(button::setToolTipText);

  button.setSelected(selected);
  button.setEnabled(enabled);

  if (biggerFont > 0) {
    button.setFont(
        new Font(
            button.getFont().getName(),
            button.getFont().getStyle(),
            button.getFont().getSize() + biggerFont));
  }

  return button;
}
 

private JButton createButton(String toolTipText, 
    ImageIcon icon, 
    java.awt.event.ActionListener actionListener)
{
  JButton btn = new JButton();
  btn.setMargin(new Insets(0, 0, 0, 0));
  btn.setPreferredSize(new Dimension(30, 30));
  btn.setIcon(icon);
  btn.setMinimumSize(new Dimension(30, 30));
  btn.setVerticalTextPosition(SwingConstants.BOTTOM);
  btn.setSelected(false);
  btn.setToolTipText(toolTipText);
  btn.setHorizontalTextPosition(SwingConstants.CENTER);
  btn.setFont(new java.awt.Font("SansSerif", 0, 10));
  btn.setMaximumSize(new Dimension(30, 30));
  btn.addActionListener(actionListener);
  return btn;
}
 

private PresenterUpdater(int type, Action action) {
    if (action == null) {
        throw new IllegalArgumentException("action must not be null"); // NOI18N
    }
    this.type = type;
    this.actionName = (String) action.getValue(Action.NAME);
    this.action = action;
    if (type == TOOLBAR) {
        presenter = new JButton();
        useActionSelectedProperty = false;
    } else { // MENU or POPUP
        useActionSelectedProperty = (action.getValue(AbstractEditorAction.PREFERENCES_KEY_KEY) != null);
        if (useActionSelectedProperty) {
            presenter = new LazyJCheckBoxMenuItem();
            presenter.setSelected(isActionSelected());
        } else {
            presenter = new LazyJMenuItem();
        }
    }

    action.addPropertyChangeListener(WeakListeners.propertyChange(this, action));
    if (type == MENU) {
        listenedContextActions = new WeakSet<Action>();
        EditorRegistryWatcher.get().registerPresenterUpdater(this); // Includes notification of active component
    } else {
        listenedContextActions = null;
    }

    presenter.addActionListener(this);
    updatePresenter(null); // Not active yet => mark updates pending
}
 

private void selectPad(final Pad selectedPad, final int padId, final JButton button) {
	final JButton lastSelected = padButtons[selectedPad.getElementIndex()];
	lastSelected.setSelected(false);

	selectedPad.setElementIndex(padId);

	currentlySelectedPad = selectedPad;// remember currently selected pad

	button.setSelected(true);
	// System.out.println("Pad " + padId + " pressed!");
	refreshParamsArea();

}