Examples of diva.canvas.CompositeFigure

diva.canvas.CompositeFigure
A CompositeFigure is a figure that contains a set of child figures. It uses a ZList as the internal representation of its children, and implements wrappers for many of the z-list methods to provide flexible access to the contained figures. Note that this class exposes the ability to add and remove children by any client, and is thus intended for use in situations in which the number of child figures is either large or unpredictable. For applications in which the number of children is smaller and predictable, and more restricted access to the children is require, applications should implement a custom subclass of AbstractFigureContainer. For an example, see diva.canvas.toolbox.IconFigure. @version $Id: CompositeFigure.java,v 1.19 2007/12/16 07:30:18 cxh Exp $ @author John Reekie @Pt.AcceptedRating Yellow

    protected Figure _renderNode(Object node) {
        Figure nf = super._renderNode(node);


        if (nf instanceof CompositeFigure) {
            // This cast should be safe...
            CompositeFigure cf = (CompositeFigure) nf;
            Figure backgroundFigure = cf.getBackgroundFigure();


            // This might be null because the node is hidden.
            if (backgroundFigure != null) {
                BasicFigure bf = new BasicFigure(backgroundFigure.getBounds(),
                        4.0f);
                bf.setStrokePaint(_HIGHLIGHT_COLOR);
                // Put the highlighting in the background,
                // behind the actor label.
                int index = cf.getFigureCount();
                if (index < 0) {
                    index = 0;
                }
                cf.add(index, bf);
            }


            return cf;
        }

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            throws NameDuplicationException, IllegalActionException {
        super(container, name);
    }


    public Figure createFigure() {
        CompositeFigure figure = (CompositeFigure) super.createFigure();
        Iterator<?> subfigures = figure.figures();
        while (subfigures.hasNext()) {
            Figure subfigure = (Figure) subfigures.next();
            if (subfigure instanceof LabelFigure) {
                ((LabelFigure) subfigure).setFillPaint(Color.RED);
            }

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     *  @return A new figure.
     */
    public Figure createBackgroundFigure() {
        // If this icon itself contains any visible attributes, then
        // compose their background figures to make this one.
        CompositeFigure figure = null;
        Iterator attributes = attributeList().iterator();


        while (attributes.hasNext()) {
            Attribute attribute = (Attribute) attributes.next();


            // There is a level of indirection where the "subIcon" is a
            // "visible attribute" containing an attribute named "_icon"
            // that actually has the icon.
            Iterator subIcons = attribute.attributeList(EditorIcon.class)
                    .iterator();


            while (subIcons.hasNext()) {
                EditorIcon subIcon = (EditorIcon) subIcons.next();


                if (figure == null) {
                    // NOTE: This used to use a constructor that
                    // takes a "background figure" argument, which would
                    // then treat this first figure specially.  This is not
                    // right since getShape() on the figure will then return
                    // only the shape of the composite, which results in the
                    // wrong selection region being highlighted.
                    figure = new CompositeFigure();
                }


                Figure subFigure = subIcon.createBackgroundFigure();


                // Translate the figure to the location of the subfigure,
                // if there is a location. Also, center it if necessary.
                try {
                    // NOTE: This is inelegant, but only the subclasses
                    // have the notion of centering.
                    // FIXME: Don't use FilledShapeAttribute... promote
                    // centered capability to a base class.
                    if (attribute instanceof FilledShapeAttribute
                            && subFigure instanceof BasicFigure) {
                        boolean centeredValue = ((BooleanToken) ((FilledShapeAttribute) attribute).centered
                                .getToken()).booleanValue();


                        if (centeredValue) {
                            ((BasicFigure) subFigure).setCentered(true);
                        }
                    }


                    Locatable location = (Locatable) attribute.getAttribute(
                            "_location", Locatable.class);


                    if (location != null) {
                        double[] locationValue = location.getLocation();
                        CanvasUtilities.translateTo(subFigure,
                                locationValue[0], locationValue[1]);
                    }
                } catch (IllegalActionException e) {
                    throw new InternalErrorException(e);
                }


                figure.add(subFigure);
            }
        }


        if (figure == null) {
            // There are no component figures.

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     *   and a label.
     */
    public Figure createFigure() {
        Figure background = createBackgroundFigure();
        Rectangle2D backBounds = background.getBounds();
        CompositeFigure figure = new CompositeFigure(background);


        NamedObj container = (NamedObj) getContainerOrContainerToBe();


        // Create the label, unless this is a visible attribute,
        // which typically carries no label.
        // NOTE: backward compatibility problem...
        // Old style annotations now have labels...
        if (!_isPropertySet(container, "_hideName")) {
            String name = container.getDisplayName();


            // Do not add a label figure if the name is null.
            if ((name != null) && !name.equals("")) {
                if (!_isPropertySet(container, "_centerName")) {
                    LabelFigure label = new LabelFigure(name, _labelFont, 1.0,
                            SwingConstants.SOUTH_WEST);


                    // Shift the label slightly right so it doesn't
                    // collide with ports.
                    label.translateTo(backBounds.getX() + 5, backBounds.getY());
                    figure.add(label);
                } else {
                    LabelFigure label = new LabelFigure(name, _labelFont, 1.0,
                            SwingConstants.CENTER);
                    label.translateTo(backBounds.getCenterX(), backBounds
                            .getCenterY());
                    figure.add(label);
                }
            }
        }


        // If specified by a preference, then show parameters.
        Token show = PtolemyPreferences.preferenceValueLocal(container,
                "_showParameters");


        if (show instanceof StringToken) {
            String value = ((StringToken) show).stringValue();
            boolean showOverriddenParameters = value
                    .equals("Overridden parameters only");
            boolean showAllParameters = value.equals("All");


            if ((showOverriddenParameters && !_isPropertySet(container,
                    "_hideAllParameters"))
                    || showAllParameters) {
                StringBuffer parameters = new StringBuffer();
                Iterator settables = container.attributeList(Settable.class)
                        .iterator();


                while (settables.hasNext()) {
                    Settable settable = (Settable) settables.next();


                    if (settable.getVisibility() != Settable.FULL) {
                        continue;
                    }


                    if (!showAllParameters
                            && !((NamedObj) settable).isOverridden()) {
                        continue;
                    }


                    if (!showAllParameters
                            && _isPropertySet((NamedObj) settable, "_hide")) {
                        continue;
                    }


                    String name = settable.getName();
                    String displayName = settable.getDisplayName();
                    parameters.append(displayName);


                    if (showAllParameters && !name.equals(displayName)) {
                        parameters.append(" (" + name + ")");
                    }


                    parameters.append(": ");
                    parameters.append(settable.getExpression());


                    if (settables.hasNext()) {
                        parameters.append("\n");
                    }
                }


                LabelFigure label = new LabelFigure(parameters.toString(),
                        _parameterFont, 1.0, SwingConstants.NORTH_WEST);


                // Shift the label slightly right so it doesn't
                // collide with ports.
                label.translateTo(backBounds.getX() + 5, backBounds.getY()
                        + backBounds.getHeight());
                figure.add(label);
            }
        }


        return figure;
    }

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        protected Figure _renderNode(Object node) {
            if ((node != null) && !_hide(node)) {
                Figure nf = super._renderNode(node);
                GraphModel model = getController().getGraphModel();
                Object object = model.getSemanticObject(node);
                CompositeFigure cf = _getCompositeFigure(nf);


                if (object instanceof NamedObj && cf != null && !_transformed
                        && _results != null
                        && _results.get(_currentPosition).containsValue(object)) {
                    Rectangle2D bounds = cf.getBackgroundFigure().getBounds();
                    float padding = _HIGHLIGHT_PADDING;
                    BasicFigure bf = new BasicRectangle(bounds.getX() - padding,
                            bounds.getY() - padding,
                            bounds.getWidth() + padding * 2.0,
                            bounds.getHeight() + padding * 2.0,
                            _HIGHLIGHT_THICKNESS);
                    bf.setStrokePaint(_HIGHLIGHT_COLOR);


                    int index = cf.getFigureCount();
                    if (index < 0) {
                        index = 0;
                    }
                    cf.add(index, bf);
                }
                return nf;
            }


            return super._renderNode(node);

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     *  The figure will be an instance of LabelFigure that renders the
     *  container name and value, separated by a colon.
     *  @return A new CompositeFigure consisting of the label.
     */
    public Figure createFigure() {
        CompositeFigure background = new CompositeFigure(super
                .createBackgroundFigure());
        Nameable container = getContainer();


        if (container instanceof Settable) {
            String name = container.getDisplayName();
            String value = ((Settable) container).getExpression();
            LabelFigure label = new LabelFigure(name + ": " + value,
                    _labelFont, 1.0, SwingConstants.SOUTH_WEST);
            background.add(label);
            return background;
        } else {
            String name = container.getName();
            LabelFigure label = new LabelFigure(name, _labelFont, 1.0,
                    SwingConstants.SOUTH_WEST);
            background.add(label);
            return background;
        }
    }

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     *  The figure will be an instance of LabelFigure that renders the
     *  value of the specified attribute of the container.
     *  @return A new CompositeFigure consisting of the label.
     */
    public Figure createFigure() {
        CompositeFigure result = (CompositeFigure) super.createFigure();
        String truncated = _displayString();


        LabelFigure label = new LabelFigure(truncated, _labelFont, 1.0,
                SwingConstants.CENTER);
        Rectangle2D backBounds = result.getBackgroundFigure().getBounds();
        label.translateTo(backBounds.getCenterX(), backBounds.getCenterY());
        result.add(label);


        _addLiveFigure(label);
        return result;
    }

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                } else {
                    southPorts.add(port);
                }
            }


            CompositeFigure figure = (CompositeFigure) getLayoutTarget()
                    .getVisualObject(node);


            _reOrderPorts(westPorts);
            _placePortFigures(figure, westPorts, SwingConstants.WEST);
            _reOrderPorts(eastPorts);

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            } else {
                return new RoundedRectangle(0, 0, width, height, _getFill(),
                        _getLineWidth(), _roundingValue, _roundingValue);
            }
        } else {
            CompositeFigure result;
            if (_roundingValue == 0.0) {
                result = new CompositeFigure(new BasicRectangle(-_spacingValue,
                        -_spacingValue, width + 2 * _spacingValue, height + 2
                                * _spacingValue, null, _getLineWidth()));
                result.add(new BasicRectangle(0, 0, width, height, _getFill(),
                        _getLineWidth()));
            } else {
                result = new CompositeFigure(new RoundedRectangle(
                        -_spacingValue, -_spacingValue, width + 2
                                * _spacingValue, height + 2 * _spacingValue,
                        null, _getLineWidth(), _roundingValue + _spacingValue,
                        _roundingValue + _spacingValue));
                result.add(new RoundedRectangle(0, 0, width, height,
                        _getFill(), _getLineWidth(), _roundingValue,
                        _roundingValue));
            }
            return result;
        }

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                } catch (IllegalActionException e) {
                    // Ignore.
                }
            }


            CompositeFigure result = new CompositeFigure(figure);


            if (relation instanceof IORelation) {
                if (((IORelation) relation).getWidth() > 1) {
                    // Restore width and height to the default to get a reasonable slash.
                    width = 12.0;
                    height = 12.0;


                    Line2D.Double line = new Line2D.Double(-width / 2,
                            height / 2, width / 2, -height / 2);
                    Figure lineFigure = new BasicFigure(line, Color.black);
                    result.add(lineFigure);


                    LabelFigure label = new LabelFigure(""
                            + ((IORelation) relation).getWidth(),
                            _relationLabelFont, 0, SwingConstants.SOUTH_WEST);
                    label.translateTo((width / 2) + 1.0, (-height / 2) - 1.0);
                    result.add(label);
                }
            }


            return result;
        }

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