I think I have something somewhere...
As I remember you need to update the recorder component...
Below is only meant as a sniplet(notice the recreate model, which now are
called from the palette onchange function)..
package com.sas.jobindsats.ui.palette.component;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import wicket.Component;
import wicket.markup.html.form.HiddenField;
import wicket.markup.html.form.IChoiceRenderer;
import wicket.model.AbstractModel;
import wicket.util.string.Strings;
import com.sas.jobindsats.ui.palette.Palette;
/**
* Component to keep track of selections on the html side. Also used for
* encoding and decoding those selections between html and java.
*
* @author Igor Vaynberg ( ivaynberg )
*/
public class Recorder extends HiddenField {
private static final long serialVersionUID = 1L;
private static final String[] EMPTY_IDS = new String[0];
private final String seperator = "#";
/** conviniently maintained array of selected ids */
private String[] ids;
/** parent palette object */
private Palette palette;
/**
* @return parent Palette object
*/
public Palette getPalette() {
return palette;
}
/**
* @param id
* component id
* @param palette
* parent palette object
*/
public Recorder(String id, Palette palette) {
super(id);
this.palette = palette;
// BELOW ENSURES THAT IDS ARE NOT NULL
reCreateModel();
AbstractModel model = new AbstractModel() {
public Object getObject(Component component) {
StringBuffer modelStringBuffer = new
StringBuffer();
for (int i = 0; ids.length > i; i++) {
modelStringBuffer.append(ids[i]);
if (i + 1 < ids.length) {
modelStringBuffer.append(seperator);
}
}
// set model and update ids array
String modelString =
modelStringBuffer.toString();
return modelString;
}
public void setObject(Component component, Object
object) {
updateIds((String) object);
};
};
setModel(model);
}
protected void onValid() {
super.onValid();
updateIds();
}
/**
* @return iterator over selected choices
*/
public Iterator getSelectedChoices() {
IChoiceRenderer renderer = getPalette().getChoiceRenderer();
if (ids.length == 0) {
return Collections.EMPTY_LIST.iterator();
}
List selected = new ArrayList(ids.length);
for (int i = 0; i < ids.length; i++) {
Iterator it = getPalette().getChoices().iterator();
while (it.hasNext()) {
final Object choice = it.next();
if (renderer.getIdValue(choice,
0).equals(ids[i])) {
selected.add(choice);
break;
}
}
}
return selected.iterator();
}
/**
* @return iterator over unselected choices
*/
public Iterator getUnselectedChoices() {
IChoiceRenderer renderer = getPalette().getChoiceRenderer();
Collection choices = getPalette().getChoices();
if (choices.size() - ids.length == 0) {
return Collections.EMPTY_LIST.iterator();
}
List unselected = new ArrayList(Math
.max(1, choices.size() - ids.length));
Iterator it = choices.iterator();
while (it.hasNext()) {
final Object choice = it.next();
final String choiceId = renderer.getIdValue(choice, 0);
boolean selected = false;
for (int i = 0; i < ids.length; i++) {
if (ids[i].equals(choiceId)) {
selected = true;
break;
}
}
if (!selected) {
unselected.add(choice);
}
}
return unselected.iterator();
}
protected void onInvalid() {
super.onInvalid();
updateIds();
}
private void updateIds() {
updateIds(getValue());
}
public void updateIds(String value) {
if (Strings.isEmpty(value)) {
ids = EMPTY_IDS;
} else {
ids = value.split(seperator);
}
}
public void reCreateModel() {
// construct the model string based on selection collection
IChoiceRenderer renderer = getPalette().getChoiceRenderer();
StringBuffer modelStringBuffer = new StringBuffer();
Iterator selection = ((Collection)
getPalette().getModelObject())
.iterator();
while (selection.hasNext()) {
modelStringBuffer.append(renderer.getIdValue(selection.next(), 0));
if (selection.hasNext()) {
modelStringBuffer.append(seperator);
}
}
// Get values from modelstringbuffer
String modelString = modelStringBuffer.toString();
// Only add if not already added
String[] local = getValue().split(seperator);
for (int i = 0; local.length > i; i++) {
if (modelString.indexOf(local[i]) == -1) {
modelString += seperator + local[i];
}
}
updateIds(modelString);
}
}
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vincent Renaville
Sent: 30. november 2006 11:40
To: Wicket List
Subject: [Wicket-user] Palette add selected option
Dear,
I use the paleete component, to assigne option to a User. but I don't
find a functionnality, how to set already selected option ?.
Exemple : a user selected option, I store it into a database:
In the futur, the user want to update his option, at the moment he
doesn't see his previous selected option.
Do you have a solution.
Kind regards,
Vincent
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