/**
* Processes a change in the contents of the filter widget.
*
* @param inValue a <code>String</code> value containing the text of the filter widget
*/
protected final void handleFilter(String inValue) {
// inValue contains the full text of what the user entered in the filter widget, e.g. Side=B
if (inValue.length() > 0) {
// some filter value has been entered, process that value
Matcher regexMatcher = mFilterPattern.matcher(inValue);
// if the value is meaningful, continue, otherwise, exit and do nothing (no filtering changes)
if (regexMatcher.matches()) {
// the first match of the regex must be the field against which to match
String fieldSpecifier = regexMatcher.group(1);
try {
// the second is the operator (either '=' or '~=' as dictated by the regex pattern)
String operator = regexMatcher.group(2);
// the third is the value to match
String value = regexMatcher.group(3);
// the field name may be one that we've translated to a shorter or more readable version
// try to translate it back first
String fieldNameToUse = FIXFieldLocalizer.readFIXFieldNameFromCache(fieldSpecifier);
// dig out the field object indicated by the fieldSpecified (a failure will throw a
// CoreException)
Field<?> fixField = FIXMessageUtil.getQuickFixFieldFromName(fieldNameToUse);
// this is the int value of the FIX field which we now know is valid
int fixFieldInt = fixField.getField();
// create a matcher depending on the operator entered by the user
if ("=".equals(operator)) { // $NON-NLS-1$
// use a straight string matcher
getFilterMatcherEditor().setMatcher(createStringMatcher(fixFieldInt, value));
} else {
// use a regex matcher
assert "~=".equals(operator); // $NON-NLS-1$
getFilterMatcherEditor().setMatcher(createRegexMatcher(fixFieldInt, value));
}
} catch (Throwable t) {
PhotonPlugin.getMainConsoleLogger().error(UNRECOGNIZED_FIELD.getText(fieldSpecifier));
}
}
} else {
// the value entered by the user is of zero length, use the default matcher
getFilterMatcherEditor().setMatcher(getDefaultMatcher());
}
}
@Override
public void createPartControl(Composite parent) {
final IActionBars actionBars = getViewSite().getActionBars();
IToolBarManager toolbar = actionBars.getToolBarManager();
mSymbolEntryText = new TextContributionItem(""); // $NON-NLS-1$
toolbar.add(mSymbolEntryText);
toolbar.add(new AddSymbolAction(mSymbolEntryText, this));
final Table table =
new Table(parent, SWT.MULTI | SWT.FULL_SELECTION | SWT.V_SCROLL | SWT.BORDER);
table.setHeaderVisible(true);
mViewer = new TableViewer(table);
GridDataFactory.defaultsFor(table).applyTo(table);
final MarketDataItemComparator comparator = new MarketDataItemComparator();
mViewer.setComparator(comparator);
SelectionListener listener =
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
// determine new sort column and direction
TableColumn sortColumn = table.getSortColumn();
TableColumn currentColumn = (TableColumn) e.widget;
final int index = table.indexOf(currentColumn);
int dir = table.getSortDirection();
if (sortColumn == currentColumn) {
dir = dir == SWT.UP ? SWT.DOWN : SWT.UP;
} else {
table.setSortColumn(currentColumn);
dir = SWT.UP;
}
table.setSortDirection(dir);
comparator.setSort(dir == SWT.UP ? 1 : -1);
comparator.setIndex(index);
mViewer.refresh();
}
};
// create columns, using FIXFieldLocalizer to preserve backwards
// compatibility
TableViewerColumn symbolColumn =
new TableViewerColumn(
mViewer,
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(Symbol.class.getSimpleName()),
SWT.LEFT,
listener));
symbolColumn.setEditingSupport(new SymbolEditingSupport());
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(LastPx.class.getSimpleName()),
SWT.RIGHT,
listener);
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(LastQty.class.getSimpleName()),
SWT.RIGHT,
listener);
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(BidSize.class.getSimpleName()),
SWT.RIGHT,
listener);
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(BidPx.class.getSimpleName()),
SWT.RIGHT,
listener);
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(OfferPx.class.getSimpleName()),
SWT.RIGHT,
listener);
createColumn(
table,
FIXFieldLocalizer.getLocalizedFIXFieldName(OfferSize.class.getSimpleName()),
SWT.RIGHT,
listener);
// restore table state if it exists
if (mViewState != null) {
ColumnState.restore(table, mViewState);
for (TableColumn column : table.getColumns()) {
if (column.getWidth() == 0) {
column.setResizable(false);
}
}
}
registerContextMenu();
getSite().setSelectionProvider(mViewer);
ObservableListContentProvider content = new ObservableListContentProvider();
mViewer.setContentProvider(content);
IObservableSet domain = content.getKnownElements();
IObservableMap[] maps =
new IObservableMap[] {
BeansObservables.observeMap(domain, MarketDataViewItem.class, "symbol"), // $NON-NLS-1$
createCompositeMap(
domain, "latestTick", MDPackage.Literals.MD_LATEST_TICK__PRICE), // $NON-NLS-1$
createCompositeMap(
domain, "latestTick", MDPackage.Literals.MD_LATEST_TICK__SIZE), // $NON-NLS-1$
createCompositeMap(
domain, "topOfBook", MDPackage.Literals.MD_TOP_OF_BOOK__BID_SIZE), // $NON-NLS-1$
createCompositeMap(
domain, "topOfBook", MDPackage.Literals.MD_TOP_OF_BOOK__BID_PRICE), // $NON-NLS-1$
createCompositeMap(
domain, "topOfBook", MDPackage.Literals.MD_TOP_OF_BOOK__ASK_PRICE), // $NON-NLS-1$
createCompositeMap(
domain, "topOfBook", MDPackage.Literals.MD_TOP_OF_BOOK__ASK_SIZE) // $NON-NLS-1$
};
mViewer.setLabelProvider(new ObservableMapLabelProvider(maps));
mViewer.setUseHashlookup(true);
mItems = WritableList.withElementType(MarketDataViewItem.class);
mViewer.setInput(mItems);
}
