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; }