protected void onPropertyChange(
JXHeader h, String propertyName, Object oldValue, final Object newValue) {
if ("title".equals(propertyName)) {
titleLabel.setText(h.getTitle());
} else if ("description".equals(propertyName)) {
descriptionPane.setText(h.getDescription());
} else if ("icon".equals(propertyName)) {
imagePanel.setIcon(h.getIcon());
} else if ("enabled".equals(propertyName)) {
boolean enabled = h.isEnabled();
titleLabel.setEnabled(enabled);
descriptionPane.setEnabled(enabled);
imagePanel.setEnabled(enabled);
} else if ("titleFont".equals(propertyName)) {
titleLabel.setFont((Font) newValue);
} else if ("descriptionFont".equals(propertyName)) {
descriptionPane.setFont((Font) newValue);
} else if ("titleForeground".equals(propertyName)) {
titleLabel.setForeground((Color) newValue);
} else if ("descriptionForeground".equals(propertyName)) {
descriptionPane.setForeground((Color) newValue);
} else if ("iconPosition".equals(propertyName)) {
resetLayout(h);
}
}
protected void installDefaults(JXHeader h) {
gradientLightColor = UIManager.getColor("JXHeader.startBackground");
if (gradientLightColor == null) {
// fallback to white
gradientLightColor = Color.WHITE;
}
gradientDarkColor = UIManager.getColor("JXHeader.background");
// for backwards compatibility (mostly for substance and synthetica,
// I suspect) I'll fall back on the "control" color if JXHeader.background
// isn't specified.
if (gradientDarkColor == null) {
gradientDarkColor = UIManager.getColor("control");
}
Painter p = h.getBackgroundPainter();
if (p == null || p instanceof PainterUIResource) {
h.setBackgroundPainter(createBackgroundPainter());
}
// title properties
Font titleFont = h.getTitleFont();
if (titleFont == null || titleFont instanceof FontUIResource) {
titleFont = UIManager.getFont("JXHeader.titleFont");
// fallback to label font
titleLabel.setFont(titleFont != null ? titleFont : UIManager.getFont("Label.font"));
}
Color titleForeground = h.getTitleForeground();
if (titleForeground == null || titleForeground instanceof ColorUIResource) {
titleForeground = UIManager.getColor("JXHeader.titleForeground");
// fallback to label foreground
titleLabel.setForeground(
titleForeground != null ? titleForeground : UIManager.getColor("Label.foreground"));
}
titleLabel.setText(h.getTitle());
// description properties
Font descFont = h.getDescriptionFont();
if (descFont == null || descFont instanceof FontUIResource) {
descFont = UIManager.getFont("JXHeader.descriptionFont");
// fallback to label font
descriptionPane.setFont(descFont != null ? descFont : UIManager.getFont("Label.font"));
}
Color descForeground = h.getDescriptionForeground();
if (descForeground == null || descForeground instanceof ColorUIResource) {
descForeground = UIManager.getColor("JXHeader.descriptionForeground");
// fallback to label foreground
descriptionPane.setForeground(
descForeground != null ? descForeground : UIManager.getColor("Label.foreground"));
}
descriptionPane.setText(h.getDescription());
}
/**
* Configures the specified component appropriate for the look and feel. This method is invoked
* when the <code>ComponentUI</code> instance is being installed as the UI delegate on the
* specified component. This method should completely configure the component for the look and
* feel, including the following:
*
* <ol>
* <li>Install any default property values for color, fonts, borders, icons, opacity, etc. on
* the component. Whenever possible, property values initialized by the client program
* should <i>not</i> be overridden.
* <li>Install a <code>LayoutManager</code> on the component if necessary.
* <li>Create/add any required sub-components to the component.
* <li>Create/install event listeners on the component.
* <li>Create/install a <code>PropertyChangeListener</code> on the component in order to detect
* and respond to component property changes appropriately.
* <li>Install keyboard UI (mnemonics, traversal, etc.) on the component.
* <li>Initialize any appropriate instance data.
* </ol>
*
* @param c the component where this UI delegate is being installed
* @see #uninstallUI
* @see javax.swing.JComponent#setUI
* @see javax.swing.JComponent#updateUI
*/
@Override
public void installUI(JComponent c) {
super.installUI(c);
assert c instanceof JXHeader;
JXHeader header = (JXHeader) c;
titleLabel = new JLabel();
descriptionPane = new DescriptionPane();
descriptionPane.setLineWrap(true);
descriptionPane.setOpaque(false);
installDefaults(header);
imagePanel = new JLabel();
imagePanel.setIcon(
header.getIcon() == null ? UIManager.getIcon("Header.defaultIcon") : header.getIcon());
installComponents(header);
installListeners(header);
}