public static void packColumns(Table table, boolean fit) {
table.setRedraw(false);
try {
int totalWidth = 0;
final TableColumn[] columns = table.getColumns();
for (TableColumn column : columns) {
column.pack();
totalWidth += column.getWidth();
}
final Rectangle clientArea = table.getClientArea();
if (clientArea.width > 0 && totalWidth > clientArea.width) {
for (TableColumn column : columns) {
int colWidth = column.getWidth();
if (colWidth > totalWidth / 3) {
// If some columns is too big (more than 33% of total width)
// Then shrink it to 30%
column.setWidth(totalWidth / 3);
totalWidth -= colWidth;
totalWidth += column.getWidth();
}
}
int extraSpace = totalWidth - clientArea.width;
for (TableColumn tc : columns) {
double ratio = (double) tc.getWidth() / totalWidth;
int newWidth = (int) (tc.getWidth() - extraSpace * ratio);
tc.setWidth(newWidth);
}
}
if (fit && totalWidth < clientArea.width) {
int sbWidth = 0;
if (table.getVerticalBar() != null) {
sbWidth = table.getVerticalBar().getSize().x;
}
if (columns.length > 0) {
float extraSpace = (clientArea.width - totalWidth - sbWidth) / columns.length;
for (TableColumn tc : columns) {
tc.setWidth((int) (tc.getWidth() + extraSpace));
}
}
}
} finally {
table.setRedraw(true);
}
}
public static void maxTableColumnsWidth(Table table) {
table.setRedraw(false);
try {
int columnCount = table.getColumnCount();
if (columnCount > 0) {
int totalWidth = 0;
final TableColumn[] columns = table.getColumns();
for (TableColumn tc : columns) {
tc.pack();
totalWidth += tc.getWidth();
}
final Rectangle clientArea = table.getClientArea();
if (totalWidth < clientArea.width) {
int extraSpace = clientArea.width - totalWidth;
extraSpace /= columnCount;
for (TableColumn tc : columns) {
tc.setWidth(tc.getWidth() + extraSpace);
}
}
}
} finally {
table.setRedraw(true);
}
}
@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);
}
