TavernerPOS - Source Code
Clone:
git clone http://www.librarysmith.co.uk/tavernerPOS
package com.floreantpos.swing;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.swing.AbstractListModel;
import javax.swing.MutableComboBoxModel;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;
public class ComboBoxModel extends AbstractListModel implements MutableComboBoxModel, Serializable, ListDataListener {
private List dataList;
private Object selectedObject;
public ComboBoxModel() {
this(new ArrayList());
}
public ComboBoxModel(List list) {
setDataList(list);
if (getSize() > 0) {
selectedObject = getElementAt(0);
}
}
public void setDataList(List list) {
int size = 0;
if(list != null) {
size = list.size();
}
this.dataList = list;
fireContentsChanged(this, 0, size);
}
// implements javax.swing.ComboBoxModel
/**
* Set the value of the selected item. The selected item may be null.
* <p>
* @param anObject The combo box value or null for no selection.
*/
public void setSelectedItem(Object anObject) {
if ((selectedObject != null && !selectedObject.equals(anObject)) || selectedObject == null && anObject != null) {
selectedObject = anObject;
fireContentsChanged(this, -1, -1);
}
}
// implements javax.swing.ComboBoxModel
public Object getSelectedItem() {
return selectedObject;
}
// implements javax.swing.ListModel
public int getSize() {
if(dataList == null) {
return 0;
}
return dataList.size();
}
// implements javax.swing.ListModel
public Object getElementAt(int index) {
if(dataList != null) {
if (index >= 0 && index < dataList.size()) {
return dataList.get(index);
}
return null;
}
else
return null;
}
/**
* Returns the index-position of the specified object in the list.
*
* @param anObject
* @return an int representing the index position, where 0 is
* the first position
*/
public int getIndexOf(Object anObject) {
return dataList.indexOf(anObject);
}
// implements javax.swing.MutableComboBoxModel
@SuppressWarnings("unchecked")
public void addElement(Object anObject) {
dataList.add(anObject);
fireIntervalAdded(this, dataList.size() - 1, dataList.size() - 1);
if (dataList.size() == 1 && selectedObject == null && anObject != null) {
setSelectedItem(anObject);
}
}
// implements javax.swing.MutableComboBoxModel
public void insertElementAt(Object anObject, int index) {
if(dataList == null) {
dataList = new ArrayList();
}
dataList.add(index, anObject);
fireIntervalAdded(this, index, index);
}
// implements javax.swing.MutableComboBoxModel
public void removeElementAt(int index) {
if(dataList == null) {
return;
}
if (getElementAt(index) == selectedObject) {
if (index == 0) {
setSelectedItem(getSize() == 1 ? null : getElementAt(index + 1));
} else {
setSelectedItem(getElementAt(index - 1));
}
}
dataList.remove(index);
fireIntervalRemoved(this, index, index);
}
// implements javax.swing.MutableComboBoxModel
public void removeElement(Object anObject) {
if(dataList == null) {
return;
}
int index = dataList.indexOf(anObject);
if (index != -1) {
removeElementAt(index);
}
}
/**
* Empties the list.
*/
public void removeAllElements() {
if(dataList == null) {
return;
}
if (dataList.size() > 0) {
int firstIndex = 0;
int lastIndex = dataList.size() - 1;
dataList.clear();
selectedObject = null;
fireIntervalRemoved(this, firstIndex, lastIndex);
} else {
selectedObject = null;
}
}
public void intervalAdded(ListDataEvent e) {
int index0 = e.getIndex0();
int index1 = e.getIndex1();
fireIntervalAdded(this, index0, index1);
}
public void intervalRemoved(ListDataEvent e) {
int index0 = e.getIndex0();
int index1 = e.getIndex1();
fireIntervalRemoved(this, index0, index1);
}
public void contentsChanged(ListDataEvent e) {
int index0 = e.getIndex0();
int index1 = e.getIndex1();
fireContentsChanged(this, index0, index1);
}
public List getDataList() {
return dataList;
}
}
- Details
- Last Updated: Monday, 04 April 2016 02:04
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