@Override
public void setFocusCell(Object element, int column) {
final ViewerCell oldCell = getFocusCell();
if (oldCell != null
&& (column == oldCell.getColumnIndex())
&& (element == oldCell.getElement())) return;
final ColumnViewer viewer = getViewer();
final TableItem item = (TableItem) viewer.findItem(element);
if (item == null) return;
final ViewerRow row = viewer.getViewerRowFromItem(item);
final ViewerCell cell = row.getCell(column);
if (cell == null) return;
setFocusCell(cell);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IA#updateFocusCell()
*/
@Override
public void updateFocusCell() {
final ViewerCell cell = getFocusCell();
if (cell == null || cell.getViewerRow() == null) return;
cell.update(
cell.getViewerRow(),
cell.getColumnIndex(),
((TableItem) cell.getViewerRow().getItem()).getData());
}
@Override
protected void doUpdateItem(Widget widget, Object element, boolean fullMap) {
boolean oldBusy = isBusy();
setBusy(true);
try {
if (widget instanceof Item) {
final Item item = (Item) widget;
// remember element we are showing
if (fullMap) {
associate(element, item);
} else {
Object data = item.getData();
if (data != null) {
unmapElement(data, item);
}
item.setData(element);
mapElement(element, item);
}
int columnCount = doGetColumnCount();
if (columnCount == 0) columnCount = 1; // If there are no columns do the first one
ViewerRow viewerRowFromItem = getViewerRowFromItem(item);
boolean isVirtual = (getControl().getStyle() & SWT.VIRTUAL) != 0;
// If the control is virtual, we cannot use the cached viewer row object. See bug 188663.
if (isVirtual) {
viewerRowFromItem = (ViewerRow) viewerRowFromItem.clone();
}
// Also enter loop if no columns added. See 1G9WWGZ: JFUIF:WINNT -
// TableViewer with 0 columns does not work
for (int column = 0; column < columnCount || column == 0; column++) {
ViewerColumn columnViewer = getViewerColumn(column);
ViewerCell cellToUpdate = updateCell(viewerRowFromItem, column, element);
// If the control is virtual, we cannot use the cached cell object. See bug 188663.
if (isVirtual) {
cellToUpdate =
new ViewerCell(cellToUpdate.getViewerRow(), cellToUpdate.getColumnIndex(), element);
}
columnViewer.refresh(cellToUpdate);
// clear cell (see bug 201280)
updateCell(null, 0, null);
// As it is possible for user code to run the event
// loop check here.
if (item.isDisposed()) {
unmapElement(element, item);
return;
}
}
}
} finally {
setBusy(oldBusy);
}
}