Examples of com.google.gwt.user.client.ui.AbsolutePanel

com.google.gwt.user.client.ui.AbsolutePanel
An absolute panel positions all of its children absolutely, allowing them to overlap.
Note that this panel will not automatically resize itself to allow enough room for its absolutely-positioned children. It must be explicitly sized in order to make room for them.

Once a widget has been added to an absolute panel, the panel effectively "owns" the positioning of the widget. Any existing positioning attributes on the widget may be modified by the panel.

     */
    public void makeResizable(final Window window) {
      windowController.getPickupDragController().makeDraggable(window, window.getHeaderWidget());
      window.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
          AbsolutePanel boundaryPanel = windowController.getBoundaryPanel();
          if (boundaryPanel.getWidgetIndex(window) < boundaryPanel.getWidgetCount() - 1) {
            // force our panel to the top of our z-index context
            WidgetLocation location = new WidgetLocation(window, boundaryPanel);
            boundaryPanel.add(window, location.getLeft(), location.getTop());
          }
        }
      });
      windowController.getResizeDragController().makeDraggable(window.getBoundaryWidget(Direction.NORTH), Direction.NORTH);
      windowController.getResizeDragController().makeDraggable(window.getBoundaryWidget(Direction.NORTH_WEST), Direction.NORTH_WEST);

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    body.setTopLeftWidget(this.editor);
    body.setTopRightWidget(this.previewer);
    body.setBottomWidget(this.output);
    contentPane.setWidget(0, 0, headerPanel);
    contentPane.setWidget(1, 0, body);
    root = new AbsolutePanel();
    root.setSize("100%", "100%");
    root.add(contentPane);
    RootPanel.get().add(root);
    
    PickupDragController dragController = new PickupDragController(root, true);

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       * @param win the window to move
       * @param right the horizontal distance
       * @param down the vertical distance
       */
      private void moveBy(Window win, int right, int down) {
        AbsolutePanel parent = (AbsolutePanel) win.getParent();
        Location location = new WidgetLocation(win, parent);
        int finalX = location.getLeft() + right;
        int finalY = location.getTop() + down;
        parent.setWidgetPosition(win, finalX, finalY);
      }

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    body.setTopRightWidget(this.previewer);
    body.setBottomWidget(this.output);
    contentPane.setWidget(0, 0, headerPanel);
    contentPane.setWidget(1, 0, body);
    contentPane.setWidget(2, 0, footer);
    root = new AbsolutePanel();
    root.setSize("100%", "100%");
    root.add(contentPane);
    FocusPanel wrap = new FocusPanel(root);
    controlKeyHandler = new IntRunnable() {
    @Override

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            return false;
          }


          @Override
          protected Widget initialize(MapWidget map) {
            return new AbsolutePanel();
          }
        };
      }
    }, true, MAPS_MIN_VERSION);
  }

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    buildControlPanelRow(resultTable, "", startStopButton);
    tableWrapper.setWidget(resultTable);


    // Position the Animation so that it looks centered.
    Widget toy = new AnimationToy();
    AbsolutePanel toyWrapper = new AbsolutePanel();
    toyWrapper.setSize("450px", "210px");
    toyWrapper.add(toy, 70, 0);
    outerPanel.add(toyWrapper);


    HTML desc = new HTML(INTERACTION_DESC);
    desc.setWidth("450px");
    outerPanel.add(desc);

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   * Initialize this example.
   */
  private Widget initialize() {


    // Create a new panel
    absolutePanel = new AbsolutePanel();


    // Add a widget that we will animate
    animateeTop = new Image("gwtLogoThumb.png");
    animateeBottom = new Image("gwtLogoThumb.png");
    animateeLeft = new Image("gwtLogoThumb.png");

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      context.boundaryPanel.add(movablePanel, currentDraggableLocation.getLeft(),
          currentDraggableLocation.getTop());
      checkGWTIssue1813(movablePanel, context.boundaryPanel);
    } else {
      saveSelectedWidgetsLocationAndStyle();
      AbsolutePanel container = new AbsolutePanel();
      container.getElement().getStyle().setProperty("overflow", "visible");


      container.setPixelSize(context.draggable.getOffsetWidth(),
          context.draggable.getOffsetHeight());
      context.boundaryPanel.add(container, currentDraggableLocation.getLeft(),
          currentDraggableLocation.getTop());
      checkGWTIssue1813(container, context.boundaryPanel);


      int draggableAbsoluteLeft = context.draggable.getAbsoluteLeft();
      int draggableAbsoluteTop = context.draggable.getAbsoluteTop();
      HashMap<Widget, CoordinateLocation> widgetLocation = new HashMap<Widget, CoordinateLocation>();
      for (Widget widget : context.selectedWidgets) {
        widgetLocation.put(widget, new CoordinateLocation(widget.getAbsoluteLeft(),
            widget.getAbsoluteTop()));
      }


      context.dropController = getIntersectDropController(context.mouseX, context.mouseY);
      if (context.dropController != null) {
        context.dropController.onEnter(context);
      }


      for (Widget widget : context.selectedWidgets) {
        Location location = widgetLocation.get(widget);
        int relativeX = location.getLeft() - draggableAbsoluteLeft;
        int relativeY = location.getTop() - draggableAbsoluteTop;
        container.add(widget, relativeX, relativeY);
      }
      movablePanel = container;
    }
    movablePanel.addStyleName(PRIVATE_CSS_MOVABLE_PANEL);

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   * 
   * @param context the current drag context
   * @return a new drag proxy
   */
  protected Widget newDragProxy(DragContext context) {
    AbsolutePanel container = new AbsolutePanel();
    container.getElement().getStyle().setProperty("overflow", "visible");


    WidgetArea draggableArea = new WidgetArea(context.draggable, null);
    for (Widget widget : context.selectedWidgets) {
      WidgetArea widgetArea = new WidgetArea(widget, null);
      Widget proxy = new SimplePanel();
      proxy.setPixelSize(widget.getOffsetWidth(), widget.getOffsetHeight());
      proxy.addStyleName(PRIVATE_CSS_PROXY);
      container.add(proxy, widgetArea.getLeft() - draggableArea.getLeft(), widgetArea.getTop()
          - draggableArea.getTop());
    }


    return container;
  }

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      context.boundaryPanel.add(movablePanel, currentDraggableLocation.getLeft(),
          currentDraggableLocation.getTop());
      checkGWTIssue1813(movablePanel, context.boundaryPanel);
    } else {
      saveSelectedWidgetsLocationAndStyle();
      AbsolutePanel container = new AbsolutePanel();
      container.getElement().getStyle().setProperty("overflow", "visible");


      container.setPixelSize(context.draggable.getOffsetWidth(),
          context.draggable.getOffsetHeight());
      context.boundaryPanel.add(container, currentDraggableLocation.getLeft(),
          currentDraggableLocation.getTop());
      checkGWTIssue1813(container, context.boundaryPanel);


      int draggableAbsoluteLeft = context.draggable.getAbsoluteLeft();
      int draggableAbsoluteTop = context.draggable.getAbsoluteTop();
      HashMap<Widget, CoordinateLocation> widgetLocation = new HashMap<Widget, CoordinateLocation>();
      for (Widget widget : context.selectedWidgets) {
        widgetLocation.put(widget, new CoordinateLocation(widget.getAbsoluteLeft(),
            widget.getAbsoluteTop()));
      }


      context.dropController = getIntersectDropController(context.mouseX, context.mouseY);
      if (context.dropController != null) {
        context.dropController.onEnter(context);
      }


      for (Widget widget : context.selectedWidgets) {
        Location location = widgetLocation.get(widget);
        int relativeX = location.getLeft() - draggableAbsoluteLeft;
        int relativeY = location.getTop() - draggableAbsoluteTop;
        container.add(widget, relativeX, relativeY);
      }
      movablePanel = container;
    }
    movablePanel.addStyleName(DragClientBundle.INSTANCE.css().movablePanel());
    calcBoundaryOffset();

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