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| public class ParamVolTableModel extends AbstractTableModel {
private final Map fields = new HashMap();
private final List points = new ArrayList();
private List cache = new ArrayList();
private final List listeners = new ArrayList();
private boolean modifyModel = false;
private final JFileChooser fileChooser = new JFileChooser();
private boolean enable = true;
public ParamVolTableModel() {
this.fields.put(new Integer(0), "days");
this.fields.put(new Integer(1), "values");
}
public int getColumnCount() {
return this.fields.size();
}
public int getRowCount() {
return this.cache.size();
}
public boolean isCellEditable(int row, int col) {
return this.enable;
}
public Class getColumnClass(int col) {
return String.class;
}
public Object getValueAt(int row, int col) {
VolParam point = (VolParam) this.cache.get(row);
switch (col) {
case 0:
return new Double(point.getDay());
case 1:
new Double(point.getValue());
default:
return null;
}
}
public void setValueAt(Object obj, int row, int col) {
this.modifyModel = true;
VolParam point = (VolParam) this.cache.get(row);
try {
switch (col) {
case 0:
point.setDay(Double.parseDouble(obj.toString()));
break;
case 1:
point.setValue(Double.parseDouble(obj.toString()));
break;
default:
}
point.setModified(true);
//nothing todo
} catch (NumberFormatException e) {
//nothing todo
}
}
public String getColumnName(int index) {
return this.fields.get(new Integer(index)).toString();
}
public void clearData() {
this.cache.clear();
this.fireTableChanged(new TableModelEvent(this));
}
public void removeRows(int[] index) {
List purge = new ArrayList();
for (int i = 0; i < index.length; ++i) {
this.modifyModel = true;
if (this.cache.size() >= index[i] && index[i] >= 0) {
purge.add(this.cache.get(index[i]));
} else {
}
}
this.cache.removeAll(purge);
this.fireTableChanged(new TableModelEvent(this));
}
public void addEmptyRow() {
this.cache.add(new VolParam());
this.modifyModel = true;
this.fireTableChanged(new TableModelEvent(this));
}
public void addTableModelListener(TableModelListener listener) {
if (!this.listeners.contains(listener))
this.listeners.add(listener);
}
public void removeTableModelListener(TableModelListener listener) {
this.listeners.remove(listener);
}
public void fireTableChanged(TableModelEvent evt) {
Iterator it = this.listeners.iterator();
while (it.hasNext())
((TableModelListener) it.next()).tableChanged(evt);
}
public void commit() {
if (this.modifyModel) {
this.copy(this.cache, this.points);
this.fireTableChanged(new TableModelEvent(this));
this.modifyModel = false;
return;
}
}
public void rollback() {
if (this.modifyModel) {
this.copy(this.points, this.cache);
this.modifyModel = false;
this.fireTableChanged(new TableModelEvent(this));
return;
}
}
public boolean isCommited() {
return !this.modifyModel;
}
private void copy(List source, List destination) {
Iterator it = source.iterator();
destination.clear();
while (it.hasNext()) {
VolParam point = (VolParam) it.next();
point.setModified(false);
destination.add(point.clone());
}
}
public void save(File file) throws Exception {
String fileName = file.getAbsolutePath();
file = new File(fileName);
XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(new FileOutputStream(file)));
encoder.writeObject(this.points);
encoder.close();
}
public void load(File file) throws Exception {
XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(new FileInputStream(file)));
this.cache = (List) decoder.readObject();
this.fireTableChanged(new TableModelEvent(this));
this.modifyModel = true;
}
public JFileChooser getFileChooser() {
return this.fileChooser;
}
public boolean isEnable() {
return this.enable;
}
public void setEnable(boolean enable) {
this.enable = enable;
}
public boolean isModified(int row, int col) {
VolParam point = (VolParam) this.cache.get(row);
return point.isModified();
}
} |
