Examples of diva.canvas.FigureDecorator

diva.canvas.FigureDecorator
A FigureDecorator is a figure container that contains a single child figure. The purpose of a FigureDecorator is to change or affect the way in which the child is rendered, and so this class behaves somewhat differently to other figures.
This class is a reasonable example of the Decorator design pattern, hence its name. @version $Id: FigureDecorator.java,v 1.12 2005/07/08 19:54:45 cxh Exp $ @author John Reekie @Pt.AcceptedRating Red


    /**
     * Return a new decorator, according to the type of the figure.
     */
    public FigureDecorator newInstance(Figure f) {
        FigureDecorator d = (FigureDecorator) _typedDecorators
                .get(f.getClass());


        if (d != null) {
            return d.newInstance(f);
        }


        return _defaultDecorator.newInstance(/* d */null);
    }

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            _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) {
                FigureDecorator decorator = (FigureDecorator) container;
                container = container.getParent();
                ((FigureContainer) container).undecorate(decorator);
            }


            if (container instanceof FigureLayer) {

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                    // Rather than just get the parent of the
                    // figure, we must get the decorator out of
                    // the hashtable, since other wrappers may
                    // have been inserted between the figure and
                    // its decorator
                    FigureDecorator d = (FigureDecorator) _decorators
                            .get(figure);


                    if (d.getParent() != null) {
                        figure.repaint();
                        ((FigureContainer) d.getParent()).undecorate(d);
                    }


                    _decorators.remove(figure);
                }
            }

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                    } else {
                        FigureContainer parent = (FigureContainer) figure
                                .getParent();


                        if (parent != null) {
                            FigureDecorator d = _prototypeDecorator
                                    .newInstance(figure);
                            parent.decorate(figure, d);
                            _decorators.put(figure, d);
                        }
                    }

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        // Rather than just get the parent of the figure, we must get
        // the decorator out of the hashtable, since other wrappers
        // may have been inserted between the figure and its
        // decorator
        FigureDecorator d = (FigureDecorator) _decorators.get(figure);


        if (d.getParent() != null) {
            figure.repaint();
            ((FigureContainer) d.getParent()).undecorate(d);
        }


        _decorators.remove(figure);
    }

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            ((Figure) _decorators.get(figure)).repaint();
        } else {
            FigureContainer parent = (FigureContainer) figure.getParent();


            if (parent != null) {
                FigureDecorator d = _prototypeDecorator.newInstance(figure);
                parent.decorate(figure, d);
                _decorators.put(figure, d);
            }
        }
    }

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Related Classes of diva.canvas.FigureDecorator

diva.canvas.interactor.BasicSelectionRenderer

diva.canvas.toolbox.TypedDecorator

diva.graph.BasicNodeController

diva.util.NullIterator

diva.util.UnitIterator

ptolemy.vergil.kernel.AnimationRenderer

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