Examples of diva.canvas.Figure

diva.canvas.Figure
A Figure is a persistent object drawn on the screen. This interface roots a small tree of interfaces that define various roles that different kinds of figures play. It is also implemented by the AbstractFigure class, which roots the tree of concrete figure classes. @version $Id: Figure.java,v 1.11 2005/07/08 19:54:45 cxh Exp $ @author John Reekie @Pt.AcceptedRating Yellow

        for (Iterator i = model.inEdges(node); i.hasNext();) {
            Object edge = i.next();
            _controller.clearEdge(edge);
        }


        Figure f = _controller.getFigure(node);


        if (f != null) {
            CanvasComponent container = f.getParent();
            f.setUserObject(null);
            _controller.setFigure(node, null);


            // If the figure is decorated, then we have to undecorate
            // it before proceeding, or the figure remains as a ghost!
            while (container instanceof FigureDecorator) {

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     * Render the given node and add the resulting figure to the foreground
     * layer of the graph pane.  If the node was previously rendered, then
     * infer the new location of the figure from the old.
     */
    public Figure drawNode(Object node) {
        Figure oldFigure = _controller.getFigure(node);


        // Infer the location for the new node.
        Point2D center;


        if (oldFigure != null) {
            center = oldFigure.getOrigin();
            clearNode(node);
        } else {
            // no previous figure.  which means that we are probably
            // rendering for the first time.
            center = null; //FIXME: layout?
        }


        Figure newFigure = _renderNode(node);
        _controller.getGraphPane().getForegroundLayer().add(newFigure);


        // Now draw the contained nodes, letting them go where they want to.
        _drawChildren(node);

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     * node's figure, which is assumed to be a CompositeFigure
     * in the controller's graph pane.
     */
    public Figure drawNode(Object node, Object parent) {
        // FIXME what if node was previously rendered?
        Figure newFigure = _renderNode(node);
        CompositeFigure cf = (CompositeFigure) _controller.getFigure(parent);
        cf.add(newFigure);


        // Now draw the contained nodes, letting them go where they want to.
        _drawChildren(node);

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     * Render the given node using the node renderer.  Set the interactor
     * of the resulting figure to the node interactor.
     */
    protected Figure _renderNode(Object node) {
        //System.out.println("BasicNodeController node = " + node);
        Figure newFigure = getNodeRenderer().render(node);
        newFigure.setInteractor(getNodeInteractor());
        newFigure.setUserObject(node);
        _controller.setFigure(node, newFigure);
        return newFigure;
    }

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    /** Create a new edge, add it to the graph controller and add
     * the connector to the selection.
     */
    public void mousePressed(LayerEvent e) {
        Figure source = e.getFigureSource();
        FigureLayer layer = (FigureLayer) e.getLayerSource();


        Object edge = createEdge();


        // Add it to the editor
        // FIXME what about an error?
        _controller.addEdge(edge, source.getUserObject(),
                ConnectorEvent.TAIL_END, e.getLayerX(), e.getLayerY());


        // Add it to the selection so it gets a manipulator, and
        // make events go to the grab-handle under the mouse
        Figure ef = _controller.getFigure(edge);
        _controller.getSelectionModel().addSelection(ef);


        ConnectorManipulator cm = (ConnectorManipulator) ef.getParent();
        GrabHandle gh = cm.getHeadHandle();
        layer.grabPointer(e, gh);
    }

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        while (nodes.hasNext()) {
            Location node = (Location) nodes.next();
            NamedObj entity = (NamedObj) _graphModel.getSemanticObject(node);


            if (_entities.contains(entity)) {
                Figure figure = _controller.getFigure(node);
                _selectionModel.addSelection(figure);


                Iterator edges = GraphUtilities.partiallyContainedEdges(node,
                        _graphModel);


                while (edges.hasNext()) {
                    Object edge = edges.next();
                    Object relation = _graphModel.getSemanticObject(edge);


                    if (_relations.contains(relation)) {
                        Figure relationFigure = _controller.getFigure(edge);
                        _selectionModel.addSelection(relationFigure);
                    }
                }
            }
        }

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    protected void _makeSceneGraphConnection() throws IllegalActionException {
        int width = sceneGraphIn.getWidth();


        for (int i = 0; i < width; i++) {
            Scene2DToken sceneToken = (Scene2DToken) sceneGraphIn.get(i);
            Figure figure = sceneToken.getFigure();
            _addChild(figure);
        }
    }

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         * origin of the viewscreen if the user releases the 'o' key.
         * @param e The KeyEvent generated by the frame containing the
         * viewscreen.
         */
        public void keyReleased(KeyEvent e) {
            Figure selectedFigure = getSelectedFigure();


            if (selectedFigure != null) {
                ((FigureInteractor) selectedFigure.getInteractor())
                        .keyReleased(e);
            }


            if (e.getKeyCode() == KeyEvent.VK_O) {
                _originRelocatable = true;

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         *  this method does nothing.
         * @param e The KeyEvent generated by the frame containing the
         * viewscreen.
         */
        public void keyTyped(KeyEvent e) {
            Figure selectedFigure = getSelectedFigure();


            if (selectedFigure != null) {
                ((FigureInteractor) selectedFigure.getInteractor()).keyTyped(e);
            }
        }

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         */
        public void mousePressed(LayerEvent e) {
            Iterator figureIterator = _layer.figures();


            while (figureIterator.hasNext()) {
                Figure figure = (Figure) figureIterator.next();


                if (!figure.contains(e.getLayerPoint())) {
                    ((FigureInteractor) figure.getInteractor())
                            .setSelected(false);
                }
            }
        }

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Related Classes of diva.canvas.Figure

diva.canvas.connector.ArcConnector

diva.canvas.connector.ConnectorInteractor

diva.canvas.connector.ConnectorManipulator$TargetHighlighter

diva.canvas.interactor.BoundedDragInteractor

diva.canvas.interactor.DragInteractor

diva.canvas.interactor.PathManipulator

diva.canvas.interactor.SelectionDragger

diva.canvas.interactor.SelectionInteractor

diva.canvas.test.ConcreteFigures$CompositeFigureFactory1

diva.canvas.test.ConcreteFigures$PaneWrapperFactory

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