Examples of diva.canvas.toolbox.LabelFigure

diva.canvas.toolbox.LabelFigure
A figure which draws a string. If the string contains newlines, then it will be broken up into multiple lines. Strings can be "anchored" in the center or on one of the edges or corners, so that when the font or text changes, the label appears to stay in the right location. @author Michael Shilman @author John Reekie @version $Id: LabelFigure.java,v 1.16 2005/07/08 19:54:58 cxh Exp $

     */
    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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    protected RotateOrFlipPorts _rotatePortsCounterclockwise = new RotateOrFlipPorts(
            RotateOrFlipPorts.COUNTERCLOCKWISE, "Rotate Ports Counterclockwise");


    private LabelFigure _createPortLabelFigure(String string, Font font,
            double x, double y, int direction) {
        LabelFigure label;


        if (direction == SwingConstants.SOUTH) {
            // The 1.0 argument is the padding.
            label = new LabelFigure(string, font, 1.0,
                    SwingConstants.SOUTH_WEST);


            // Shift the label down so it doesn't
            // collide with ports.
            label.translateTo(x, y + 5);


            // Rotate the label.
            AffineTransform rotate = AffineTransform.getRotateInstance(
                    Math.PI / 2.0, x, y + 5);
            label.transform(rotate);
        } else if (direction == SwingConstants.EAST) {
            // The 1.0 argument is the padding.
            label = new LabelFigure(string, font, 1.0,
                    SwingConstants.SOUTH_WEST);


            // Shift the label right so it doesn't
            // collide with ports.
            label.translateTo(x + 5, y);
        } else if (direction == SwingConstants.WEST) {
            // The 1.0 argument is the padding.
            label = new LabelFigure(string, font, 1.0,
                    SwingConstants.SOUTH_EAST);


            // Shift the label left so it doesn't
            // collide with ports.
            label.translateTo(x - 5, y);
        } else { // Must be north.


            // The 1.0 argument is the padding.
            label = new LabelFigure(string, font, 1.0,
                    SwingConstants.SOUTH_WEST);


            // Shift the label right so it doesn't
            // collide with ports.  It will probably
            // collide with the actor name.
            label.translateTo(x, y - 5);


            // Rotate the label.
            AffineTransform rotate = AffineTransform.getRotateInstance(
                    -Math.PI / 2.0, x, y - 5);
            label.transform(rotate);
        }


        return label;
    }

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                            } catch (KernelException ex) {
                                // Ignore.
                            }
                        }


                        LabelFigure labelFigure = _createPortLabelFigure(
                                rateString, _portLabelFont, x, y, direction);
                        labelFigure.setFillPaint(Color.BLUE);
                        figure.add(labelFigure);
                    }
                }


                // If the port contains an attribute named "_showName",
                // then render the name of the port as well. If the
                // attribute is a boolean-valued parameter, then
                // show the name only if the value is true.
                Attribute showAttribute = port.getAttribute("_showName");
                String toShow = null;
                if (showAttribute != null) {
                    boolean show = true;


                    if (showAttribute instanceof Parameter) {
                        try {
                            Token token = ((Parameter) showAttribute)
                                    .getToken();


                            if (token instanceof BooleanToken) {
                                show = ((BooleanToken) token).booleanValue();
                            }
                        } catch (IllegalActionException e) {
                            // Ignore. Presence of the attribute will prevail.
                        }
                    }


                    if (show) {
                        toShow = port.getDisplayName();
                    }
                }
                // In addition, if the port contains an attribute
                // called "_showInfo", then if that attribute is
                // a variable, then its value is shown. Otherwise,
                // if it is a Settable, then its expression is shown.
                Attribute showInfo = port.getAttribute("_showInfo");
                try {
                    if (showInfo instanceof Variable
                            && !((Variable) showInfo).isStringMode()) {
                        String value = ((Variable) showInfo).getToken()
                                .toString();
                        if (toShow != null) {
                            toShow += " (" + value + ")";
                        } else {
                            toShow = value;
                        }
                    } else if (showInfo instanceof Settable) {
                        if (toShow != null) {
                            toShow += " ("
                                    + ((Settable) showInfo).getExpression()
                                    + ")";
                        } else {
                            toShow = ((Settable) showInfo).getExpression();
                        }
                    }
                } catch (IllegalActionException e) {
                    toShow += e.getMessage();
                }


                if (toShow != null) {
                    LabelFigure labelFigure = _createPortLabelFigure(toShow,
                            _portLabelFont, x, y, direction);
                    figure.add(labelFigure);
                }
            }
        }

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        double width = 60;
        double height = 30;


        // Measure width of the text.  Unfortunately, this
        // requires generating a label figure that we will not use.
        LabelFigure label = new LabelFigure(name, _labelFont, 1.0,
                SwingConstants.CENTER);
        Rectangle2D stringBounds = label.getBounds();


        // NOTE: Padding of 20. Quantize the height so that
        // snap to grid still works.
        width = Math.floor(stringBounds.getWidth()) + 20;
        height = Math.floor(stringBounds.getHeight()) + 10;

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        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;
    }

View Full Code Here

                    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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        double height = 30;


        if (displayString != null) {
            // Measure width of the text.  Unfortunately, this
            // requires generating a label figure that we will not use.
            LabelFigure label = new LabelFigure(displayString, _labelFont, 1.0,
                    SwingConstants.CENTER);
            Rectangle2D stringBounds = label.getBounds();


            // NOTE: Padding of 20. Quantize the height so that
            // snap to grid still works.
            width = Math.floor(stringBounds.getWidth()) + 20;
            height = Math.floor(stringBounds.getHeight()) + 20;

View Full Code Here

        double heigth = 30;


        if (displayString != null) {
            // Measure width of the text.  Unfortunately, this
            // requires generating a label figure that we will not use.
            LabelFigure label = new LabelFigure(displayString, _labelFont, 1.0,
                    SwingConstants.CENTER);
            Rectangle2D stringBounds = label.getBounds();


            // NOTE: Padding of 20.
            width = stringBounds.getWidth() + 20;
            heigth = stringBounds.getHeight() + 10;
        }

View Full Code Here


        // 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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            public void changeFailed(ChangeRequest change, Exception exception) {
                if (_graphPane == null) {
                    super.changeFailed(change, exception);
                    return;
                }
                LabelFigure newFigure = new LabelFigure("No icon available",
                        _font);
                _graphPane.getForegroundLayer().add(newFigure);
                CanvasUtilities.translateTo(newFigure, 100.0, 100.0);
                controller.dispatch(new GraphViewEvent(this,
                        GraphViewEvent.NODE_DRAWN, newFigure));

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