private void refresh(Item[] items) {
for (int i = 0; i < items.length; i++) {
Item item = items[i];
item.setData(COLORED_LABEL_KEY, null);
String text = item.getText();
item.setText(""); // $NON-NLS-1$
item.setText(text);
if (item instanceof TreeItem) {
refresh(((TreeItem) item).getItems());
}
}
}
private ColoredString getColoredLabelForView(Item item) {
ColoredString oldLabel = (ColoredString) item.getData(COLORED_LABEL_KEY);
String itemText = item.getText();
if (oldLabel != null && oldLabel.getString().equals(itemText)) {
// avoid accesses to the label provider if possible
return oldLabel;
}
ColoredString newLabel = null;
IBaseLabelProvider labelProvider = fViewer.getLabelProvider();
if (labelProvider instanceof IRichLabelProvider) {
newLabel = ((IRichLabelProvider) labelProvider).getRichTextLabel(item.getData());
}
if (newLabel == null) {
newLabel = new ColoredString(itemText); // fallback. Should never happen.
} else if (!newLabel.getString().equals(itemText)) {
// the decorator manager has already queued an new update
newLabel =
ColoredDartElementLabels.decorateColoredString(
newLabel, itemText, ColoredDartElementLabels.DECORATIONS_STYLE);
}
item.setData(COLORED_LABEL_KEY, newLabel); // cache the result
return newLabel;
}
/**
* Incrementally builds the menu from the contribution items. This method leaves out double
* separators and separators in the first or last position.
*
* @param force <code>true</code> means update even if not dirty, and <code>false</code> for
* normal incremental updating
* @param recursive <code>true</code> means recursively update all submenus, and <code>false
* </code> means just this menu
*/
protected void update(boolean force, boolean recursive) {
if (isDirty() || force) {
if (menuExist()) {
// clean contains all active items without double separators
IContributionItem[] items = getItems();
List clean = new ArrayList(items.length);
IContributionItem separator = null;
for (int i = 0; i < items.length; ++i) {
IContributionItem ci = items[i];
if (!isChildVisible(ci)) {
continue;
}
if (ci.isSeparator()) {
// delay creation until necessary
// (handles both adjacent separators, and separator at end)
separator = ci;
} else {
if (separator != null) {
if (clean.size() > 0) {
clean.add(separator);
}
separator = null;
}
clean.add(ci);
}
}
// remove obsolete (removed or non active)
Item[] mi = getMenuItems();
for (int i = 0; i < mi.length; i++) {
Object data = mi[i].getData();
if (data == null || !clean.contains(data)) {
mi[i].dispose();
} else if (data instanceof IContributionItem
&& ((IContributionItem) data).isDynamic()
&& ((IContributionItem) data).isDirty()) {
mi[i].dispose();
}
}
// add new
mi = getMenuItems();
int srcIx = 0;
int destIx = 0;
for (Iterator e = clean.iterator(); e.hasNext(); ) {
IContributionItem src = (IContributionItem) e.next();
IContributionItem dest;
// get corresponding item in SWT widget
if (srcIx < mi.length) {
dest = (IContributionItem) mi[srcIx].getData();
} else {
dest = null;
}
if (dest != null && src.equals(dest)) {
srcIx++;
destIx++;
} else if (dest != null && dest.isSeparator() && src.isSeparator()) {
mi[srcIx].setData(src);
srcIx++;
destIx++;
} else {
int start = getMenuItemCount();
doItemFill(src, destIx);
int newItems = getMenuItemCount() - start;
for (int i = 0; i < newItems; i++) {
Item item = getMenuItem(destIx++);
item.setData(src);
}
}
// May be we can optimize this call. If the menu has just
// been created via the call src.fill(fMenuBar, destIx) then
// the menu has already been updated with update(true)
// (see MenuManager). So if force is true we do it again. But
// we can't set force to false since then information for the
// sub sub menus is lost.
if (recursive) {
IContributionItem item = src;
if (item instanceof SubContributionItem) {
item = ((SubContributionItem) item).getInnerItem();
}
if (item instanceof IMenuManager) {
((IMenuManager) item).updateAll(force);
}
}
}
// remove any old menu items not accounted for
for (; srcIx < mi.length; srcIx++) {
mi[srcIx].dispose();
}
setDirty(false);
}
} else {
// I am not dirty. Check if I must recursivly walk down the hierarchy.
if (recursive) {
IContributionItem[] items = getItems();
for (int i = 0; i < items.length; ++i) {
IContributionItem ci = items[i];
if (ci instanceof IMenuManager) {
IMenuManager mm = (IMenuManager) ci;
if (isChildVisible(mm)) {
mm.updateAll(force);
}
}
}
}
}
updateMenuItem();
}
private void loadCommon(Item column) {
column.setData(DescriptorKey, this);
if (imagePath != null) column.setImage(ResourceManager.imageFor(imagePath));
}
@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);
}
}
