The Backyard - EntityWizardPanel1 Diff
- Added parts are displayed like this.
- Deleted parts are displayed
like this.
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.awt.Component;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import org.openide.WizardDescriptor;
import org.openide.util.HelpCtx;
public class EntityWizardPanel1 implements WizardDescriptor.Panel {
/**
* The visual component that displays this panel. If you need to access the
* component from this class, just use getComponent().
*/
private EntityVisualPanel1 component;
// Get the visual component for the panel. In this template, the component
// is kept separate. This can be more efficient: if the wizard is created
// but never displayed, or not all panels are displayed, it is better to
// create only those which really need to be visible.
public Component getComponent() {
if (component == null) {
component = new EntityVisualPanel1(this);
}
return component;
}
public HelpCtx getHelp() {
// Show no Help button for this panel:
return HelpCtx.DEFAULT_HELP;
// If you have context help:
// return new HelpCtx(SampleWizardPanel1.class);
}
public boolean isValid() {
return component.selectedConnection() != null;
}
private final Set<ChangeListener> listeners = new HashSet<ChangeListener>(1);
public final void addChangeListener(ChangeListener l) {
synchronized (listeners) {
listeners.add(l);
}
}
public final void removeChangeListener(ChangeListener l) {
synchronized (listeners) {
listeners.remove(l);
}
}
protected final void fireChangeEvent() {
Iterator<ChangeListener> it;
synchronized (listeners) {
it = new HashSet<ChangeListener>(listeners).iterator();
}
ChangeEvent ev = new ChangeEvent(this);
while (it.hasNext()) {
it.next().stateChanged(ev);
}
}
// You can use a settings object to keep track of state. Normally the
// settings object will be the
// WizardDescriptor.getProperty & putProperty to store information entered
// by the
public void readSettings(Object settings) {}
public void storeSettings(Object settings) {
((WizardDescriptor)settings).putProperty("connection", component.selectedConnection());
}
}