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

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


        String name = "No Name";
        NamedObj container = getContainer();
        if (container != null) {
            name = container.getDisplayName();
        }
        LabelFigure label = new LabelFigure(name, _labelFont, 1.0,
                SwingConstants.CENTER);
        Rectangle2D backBounds = result.getBackgroundFigure().getBounds();
        label.translateTo(backBounds.getCenterX(), backBounds.getCenterY());
        result.add(label);
        return result;
    }

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


        // If there is no string to display now, then create a string
        // with a single blank.
        if (truncated == null) {
            truncated = " ";
        }


        // NOTE: This violates the Diva MVC architecture!
        // This attribute is part of the model, and should not have
        // a reference to this figure.  By doing so, it precludes the
        // possibility of having multiple views on this model.
        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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     *  @param nf The figure that should be a CompositeFigure itself, or be a
     *   TerminalFigure whose getFigure() method returns a CompositeFigure.
     *  @return The CompositeFigure, or null of it cannot be found.
     */
    protected static CompositeFigure _getCompositeFigure(Figure nf) {
        CompositeFigure cf;


        // Try to get a composite figure that we can add the
        // annotation to.  This is complicated by the fact that
        // ExternalIOPortController wraps its figure in a
        // TerminalFigure, and that there is nothing in the API

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     *  @return the newly created figure.
     */
    protected Figure _renderNode(java.lang.Object node) {
        if ((node == null) || _hide(node)) {
            // Return an empty figure.
            Figure newFigure = new CompositeFigure();
            newFigure.setVisible(false);
            newFigure.setInteractor(getNodeInteractor());
            newFigure.setUserObject(node);
            getController().setFigure(node, newFigure);
            return newFigure;
        } else {
            Figure nf = super._renderNode(node);
            GraphModel model = getController().getGraphModel();
            Object object = model.getSemanticObject(node);
            CompositeFigure cf = _getCompositeFigure(nf);


            if (_decoratable
                    && object instanceof NamedObj
                    && (((NamedObj) object).getDerivedLevel() < Integer.MAX_VALUE)
                    && (cf != null)) {
                // float[] dash = { 2.0f, 5.0f };
                Stroke stroke = new BasicStroke(2f, /* width */
                BasicStroke.CAP_SQUARE, /* cap   */
                BasicStroke.JOIN_MITER, /* join  */
                10.0f); /* mitre limit */
                // To get a dashed line, add the following two arguments above:
                // dash, /* dash  */
                // 0.0f); /* dash_phase  */
                // Pad the figure so that this highlight composes properly
                // with other highlights.
                Rectangle2D bounds = cf.getBackgroundFigure().getBounds();
                double padding = 3.0;
                bounds = new Rectangle2D.Double(bounds.getX() - padding, bounds
                        .getY()
                        - padding, bounds.getWidth() + padding * 2.0, bounds
                        .getHeight()
                        + padding * 2.0);
                BasicFigure bf = new BasicFigure(bounds);
                bf.setStroke(stroke);
                bf.setStrokePaint(CLASS_ELEMENT_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 nf;
        }
    }

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                if (ioPort.isMultiport()) {
                    int numberOfLinks = ioPort.linkedRelationList().size();


                    if (numberOfLinks > 1) {
                        // The diagonal is necessary.
                        CompositeFigure compositeFigure = new CompositeFigure(
                                figure) {
                            // Override this because we want to show the type.
                            // It doesn't work to set it once because the type
                            // has not been resolved, and anyway, it may
                            // change. NOTE: This is copied from above.
                            public String getToolTipText() {
                                String tipText = port.getName();
                                String displayName = port.getDisplayName();
                                if (!tipText.equals(displayName)) {
                                    tipText = displayName + " (" + tipText
                                            + ")";
                                }
                                StringAttribute _explAttr = (StringAttribute) (port
                                        .getAttribute("_explanation"));


                                if (_explAttr != null) {
                                    tipText = _explAttr.getExpression();
                                } else if (port instanceof Typeable) {
                                    try {
                                        tipText = tipText + ", type:"
                                                + ((Typeable) port).getType();
                                    } catch (IllegalActionException ex) {
                                        // System.out.println("Tooltip failed: " + ex);
                                    }
                                }
                                return tipText;
                            }
                        };


                        // Line depends on the orientation.
                        double startX;


                        // Line depends on the orientation.
                        double startY;


                        // Line depends on the orientation.
                        double endX;


                        // Line depends on the orientation.
                        double endY;
                        Rectangle2D bounds = figure.getShape().getBounds2D();
                        double x = bounds.getX();
                        double y = bounds.getY();
                        double width = bounds.getWidth();
                        double height = bounds.getHeight();
                        int extent = numberOfLinks - 1;


                        if (direction == SwingConstants.EAST) {
                            startX = x + width;
                            startY = y + (height / 2);
                            endX = startX
                                    + (extent * MULTIPORT_CONNECTION_SPACING);
                            endY = startY
                                    + (extent * MULTIPORT_CONNECTION_SPACING);
                        } else if (direction == SwingConstants.WEST) {
                            startX = x;
                            startY = y + (height / 2);
                            endX = startX
                                    - (extent * MULTIPORT_CONNECTION_SPACING);
                            endY = startY
                                    - (extent * MULTIPORT_CONNECTION_SPACING);
                        } else if (direction == SwingConstants.NORTH) {
                            startX = x + (width / 2);
                            startY = y;
                            endX = startX
                                    - (extent * MULTIPORT_CONNECTION_SPACING);
                            endY = startY
                                    - (extent * MULTIPORT_CONNECTION_SPACING);
                        } else {
                            startX = x + (width / 2);
                            startY = y + height;
                            endX = startX
                                    + (extent * MULTIPORT_CONNECTION_SPACING);
                            endY = startY
                                    + (extent * MULTIPORT_CONNECTION_SPACING);
                        }


                        Line2D line = new Line2D.Double(startX, startY, endX,
                                endY);
                        Figure lineFigure = new BasicFigure(line, fill,
                                (float) 2.0);
                        compositeFigure.add(lineFigure);
                        figure = compositeFigure;
                    }
                }
                // Wrap the figure in a TerminalFigure to set the direction that
                // connectors exit the port. Note that this direction is the

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        nf.setMinimumIntegerDigits(2);
        nf.setMinimumFractionDigits(2);
        nf.setMaximumFractionDigits(2);


        // The measure-band figure (made up of sub figures below)
        mband = new CompositeFigure();


        // Diagonal line
        mbandLine = new BasicFigure(new GeneralPath(), 1.0f);
        mbandLine.setStrokePaint(Color.white);
        mband.add(mbandLine);

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