public void handleItemChanged(TimeStampedDataItem changedItem) {
int index = myInput.getItems().indexOf(changedItem);
if (index < 0) {
return;
}
double currentXValue = myXComponent.getDoubleValue(changedItem);
BackedXYDataItem chartItem = (BackedXYDataItem) mySeries.getDataItem(index);
if (chartItem.getDomainItem() != changedItem) {
int shouldBeAt = myInput.getItems().indexOf(chartItem.getDomainItem());
throw new IllegalStateException(
"domain position for element: "
+ changedItem
+ //
" is "
+ index
+ //
", but chart series contains "
+ chartItem.getDomainItem()
+ //
" which should be at position: "
+ shouldBeAt);
}
if (currentXValue == chartItem.getXValue()) {
mySeries.updateByIndex(index, myYComponent.getDoubleValue(changedItem));
} else {
handleItemDeleted(index, changedItem);
handleItemAdded(index, changedItem);
}
}
@Override
protected void doUndo(final IProgressMonitor monitor, final IAdaptable info)
throws ExecutionException {
final GriddableSeries series = getOperationEnvironment().getSeries();
final TimeStampedDataItem wasInserted = getOperationEnvironment().getSubject();
series.deleteItem(wasInserted);
}
@Override
protected EnvironmentState doExecute(final IProgressMonitor monitor, final IAdaptable info)
throws ExecutionException {
final GriddableSeries series = getOperationEnvironment().getSeries();
final TimeStampedDataItem toBeInserted = getOperationEnvironment().getSubject();
series.insertItemAt(toBeInserted, myInsertPosition);
return new EnvironmentState.ItemAtKnownPosition(getOperationEnvironment(), myInsertPosition);
}
public void setInput(GriddableSeries input) {
myInput = input;
int index = 0;
for (TimeStampedDataItem nextItem : input.getItems()) {
handleItemAdded(index, nextItem);
index++;
}
}
public void dispose() {
if (myData != null) {
myData.removePropertyChangeListener(this);
myData = null;
}
}
public TableRefresher(ColumnViewer viewer, GriddableSeries data) {
myColumnViewer = viewer;
myData = data;
myData.addPropertyChangeListener(this);
}
public Object[] getElements(Object inputElement) {
if (inputElement != myInput) {
return NOTHING;
}
return myInput.getItems().toArray();
}