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);
 }
Esempio n. 2
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 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);
 }
Esempio n. 3
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 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;
  }