/**
* Sets internal model for this combo. If comboModelField is set, this method is useless (combo
* model is automatically read from YModel).
*
* @param data the collection of POJOs
*/
public void setComboModel(Collection data) {
this.originalComboModel = data;
int i = 0;
if (addEmpty) {
items = new YListItem[data.size() + 1];
items[0] = emptyItem;
i = 1;
} else {
items = new YListItem[data.size()];
}
Iterator it = data.iterator();
while (it.hasNext()) {
YListItem comboItem = new YListItem();
if (formatter != null) {
comboItem.setFormatter(formatter);
}
comboItem.setItemModel(it.next());
items[i++] = comboItem;
}
if (sort) {
Arrays.sort(items, YCoreToolkit.LEXICAL_COMPARATOR);
}
super.setModel(new DefaultComboBoxModel(items));
}
/**
* Gets selected item for view model.
*
* @see #setModelField(String)
* @return the value or null if no item is selected
*/
public Object getModelValue() {
if (!forceListItem) {
return this.editorField.getText();
} else {
Object item = super.getSelectedItem();
if (item == null || item == emptyItem || !(item instanceof YListItem)) {
return null;
} else {
YListItem comboItem = (YListItem) super.getSelectedItem();
if (modelField == null) {
return comboItem.getItemModel();
} else {
return YCoreToolkit.getBeanValue(comboItem.getItemModel(), modelField);
}
}
}
}
/**
* Sets model value from view model. Finds matching item from the combo box and sets it selected.
*
* @param obj the view model value
* @see #setModelField(String)
*/
public void setModelValue(Object obj) throws YException {
this.settingModelValue = true;
try {
if (obj == null) {
this.setSelectedIndex(-1);
} else {
if (!forceListItem) {
this.editorField.setText(obj.toString());
} else {
// searching corresponding item in list:
if (items == null) {
throw new YException("Combo model for YComboBox is not set.");
} else {
for (int i = 0; i < this.items.length; i++) {
YListItem item = (YListItem) items[i];
if (!(item == emptyItem)) {
if (this.modelField == null) {
if (obj.equals(item.getItemModel())) {
this.setSelectedItem(item);
}
} else {
Object value = YCoreToolkit.getBeanValue(item.getItemModel(), modelField);
if (obj.equals(value)) {
this.setSelectedItem(item);
}
}
}
}
}
}
}
if (forceListItem && getSelectedItem() != null) {
// this fixes caret position in the editor...
this.editorField.setText(getSelectedItem().toString());
this.editorField.setCaretPosition(0);
}
} finally {
settingModelValue = false;
}
}
