static void Scroll(Tree tree, int x, int y) {
TreeItem item = tree.getItem(new Point(x, y));
if (item == null) return;
Rectangle area = tree.getClientArea();
int headerHeight = tree.getHeaderHeight();
int itemHeight = tree.getItemHeight();
TreeItem nextItem = null;
if (y < area.y + headerHeight + 2 * itemHeight) {
nextItem = PreviousItem(tree, item);
}
if (y > area.y + area.height - 2 * itemHeight) {
nextItem = NextItem(tree, item);
}
if (nextItem != null) tree.showItem(nextItem);
}
public void preserveValues(final Widget widget) {
Tree tree = (Tree) widget;
ControlLCAUtil.preserveValues((Control) widget);
IWidgetAdapter adapter = WidgetUtil.getAdapter(tree);
adapter.preserve(PROP_SELECTION_LISTENERS, Boolean.valueOf(SelectionEvent.hasListener(tree)));
adapter.preserve(PROP_HEADER_HEIGHT, new Integer(tree.getHeaderHeight()));
adapter.preserve(PROP_HEADER_VISIBLE, Boolean.valueOf(tree.getHeaderVisible()));
int[] values = tree.getColumnOrder();
Integer[] columnOrder = new Integer[values.length];
for (int i = 0; i < values.length; i++) {
columnOrder[i] = new Integer(values[i]);
}
adapter.preserve(PROP_COLUMN_ORDER, columnOrder);
adapter.preserve(PROP_SCROLL_LEFT, getScrollLeft(tree));
adapter.preserve(PROP_HAS_H_SCROLL_BAR, hasHScrollBar(tree));
adapter.preserve(PROP_HAS_V_SCROLL_BAR, hasVScrollBar(tree));
WidgetLCAUtil.preserveCustomVariant(tree);
}
private static void writeHeaderHeight(final Tree tree) throws IOException {
JSWriter writer = JSWriter.getWriterFor(tree);
Integer newValue = new Integer(tree.getHeaderHeight());
writer.set(PROP_HEADER_HEIGHT, "headerHeight", newValue, null);
}
@Override
protected Control createControl(Composite parent) {
Composite propertyComposite = new Composite(parent, SWT.BORDER);
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = layout.marginHeight = 0;
propertyComposite.setLayout(layout);
if (mPage instanceof Page) {
((Page) mPage)
.init(
new IPageSite() {
public void registerContextMenu(
String menuId, MenuManager menuManager, ISelectionProvider selectionProvider) {}
public IActionBars getActionBars() {
return null;
}
public IWorkbenchPage getPage() {
return getWorkbenchWindow().getActivePage();
}
public ISelectionProvider getSelectionProvider() {
return null;
}
public Shell getShell() {
return getWorkbenchWindow().getShell();
}
public IWorkbenchWindow getWorkbenchWindow() {
return PlatformUI.getWorkbench().getActiveWorkbenchWindow();
}
public void setSelectionProvider(ISelectionProvider provider) {}
@SuppressWarnings("unchecked")
public Object getAdapter(Class adapter) {
return null;
}
@SuppressWarnings("unchecked")
public Object getService(Class api) {
return null;
}
@SuppressWarnings("unchecked")
public boolean hasService(Class api) {
return false;
}
});
}
if (mPage instanceof PropertySheetPage) {
((PropertySheetPage) mPage).setPropertySourceProvider(this);
}
mPage.createControl(propertyComposite);
mPage.setActionBars(new DummyActionBars());
final Control control = mPage.getControl();
GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
if (control instanceof Tree) {
final Tree tree = (Tree) control;
data.heightHint =
tree.getItemHeight() * 13
+ (tree.getLinesVisible() ? 12 * tree.getGridLineWidth() : 0)
+ (tree.getHeaderVisible() ? tree.getHeaderHeight() : 0)
+ 2 * tree.getBorderWidth()
+ (tree.getHorizontalBar() != null ? tree.getHorizontalBar().getSize().x : 0);
tree.addControlListener(
new ControlAdapter() {
@Override
public void controlResized(ControlEvent e) {
Rectangle area = tree.getClientArea();
TreeColumn[] columns = tree.getColumns();
if (area.width > 0) {
columns[0].setWidth(area.width * 40 / 100);
columns[1].setWidth(area.width - columns[0].getWidth() - 4);
}
}
});
} else if (control instanceof Composite) {
control.addControlListener(
new ControlAdapter() {
@Override
public void controlResized(ControlEvent e) {
((Composite) control).layout(true, true);
}
});
}
control.setLayoutData(data);
ISelection selection;
if (mCurrentWidget == null) {
Collection<InstallOptionsModelTypeDef> typeDefs =
InstallOptionsModel.INSTANCE.getControlTypeDefs();
if (typeDefs.size() > 0) {
InstallOptionsModelTypeDef typeDef = typeDefs.iterator().next();
InstallOptionsElementFactory factory =
InstallOptionsElementFactory.getFactory(typeDef.getType());
mCurrentWidget = (InstallOptionsWidget) factory.getNewObject();
mDialog.addChild(mCurrentWidget);
}
}
if (mCurrentWidget != null) {
mCurrentWidget.addModelCommandListener(InstallOptionsWidgetEditorDialog.this);
mCurrentWidget.addPropertyChangeListener(InstallOptionsWidgetEditorDialog.this);
if (mCurrentWidget.getParent() != null) {
mCurrentWidget.getParent().addPropertyChangeListener(InstallOptionsWidgetEditorDialog.this);
}
selection = new StructuredSelection(mCurrentWidget);
} else {
selection = StructuredSelection.EMPTY;
}
mPage.selectionChanged(null, selection);
PlatformUI.getWorkbench().getHelpSystem().setHelp(mPage.getControl(), HELP_CONTEXT);
PlatformUI.getWorkbench().getHelpSystem().setHelp(propertyComposite, HELP_CONTEXT);
return propertyComposite;
}