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/*
* InstallationPathIterator.java
*
* Created on February 12, 2003
*/
package org.openoffice.netbeans.modules.office.wizard;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.HashSet;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Set;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.openide.WizardDescriptor;
import org.openide.util.NbBundle;
/** A wizard iterator (sequence of panels).
* Used to create a wizard. Create one or more
* panels from template as needed too.
*
* @author tomaso
*/
public class InstallationPathIterator implements WizardDescriptor.Iterator {
// You should define what panels you want to use here:
protected WizardDescriptor.Panel[] createPanels() {
return new WizardDescriptor.Panel[] {
new SelectPathPanel()
};
}
// And the list of step names:
protected String[] createSteps() {
return new String[] {
"Select OpenOffice.org Installation"
};
}
// --- The rest probably does not need to be touched. ---
// Keep track of the panels and selected panel:
private transient int index = 0;
// Also package-accessible to descriptor:
protected final int getIndex() {
return index;
}
private transient WizardDescriptor.Panel[] panels = null;
protected final WizardDescriptor.Panel[] getPanels() {
if (panels == null) {
panels = createPanels();
}
return panels;
}
// Also the list of steps in the left pane:
private transient String[] steps = null;
// Also package-accessible to descriptor:
protected final String[] getSteps() {
if (steps == null) {
steps = createSteps();
}
return steps;
}
// --- WizardDescriptor.Iterator METHODS: ---
// Note that this is very similar to WizardDescriptor.Iterator, but with a
// few more options for customization. If you e.g. want to make panels appear
// or disappear dynamically, go ahead.
public String name() {
return NbBundle.getMessage(InstallationPathIterator.class, "TITLE_x_of_y",
new Integer(index + 1), new Integer(getPanels().length));
}
public boolean hasNext() {
return index < getPanels().length - 1;
}
public boolean hasPrevious() {
return index > 0;
}
public void nextPanel() {
if (!hasNext()) throw new NoSuchElementException();
index++;
}
public void previousPanel() {
if (!hasPrevious()) throw new NoSuchElementException();
index--;
}
public WizardDescriptor.Panel current() {
return getPanels()[index];
}
// If nothing unusual changes in the middle of the wizard, simply:
public final void addChangeListener(ChangeListener l) {}
public final void removeChangeListener(ChangeListener l) {}
// If something changes dynamically (besides moving between panels),
// e.g. the number of panels changes in response to user input, then
// uncomment the following and call when needed:
// fireChangeEvent();
/*
private transient Set listeners = new HashSet(1); // Set<ChangeListener>
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 it;
synchronized (listeners) {
it = new HashSet(listeners).iterator();
}
ChangeEvent ev = new ChangeEvent(this);
while (it.hasNext()) {
((ChangeListener)it.next()).stateChanged(ev);
}
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
listeners = new HashSet(1);
}
*/
}
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