List of usage examples for javafx.beans.binding DoubleBinding subtract
@Override
public DoubleBinding subtract(final ObservableNumberValue other)
From source file:Main.java
public static void main(String[] args) { DoubleProperty a = new SimpleDoubleProperty(0); DoubleProperty b = new SimpleDoubleProperty(0); DoubleBinding s = a.add(b).divide(2.0D); final DoubleBinding aBinding = new When(a.add(b).greaterThan(b).and(a.add(a).greaterThan(b))) .then(s.multiply(s.subtract(a)).multiply(s.subtract(b))).otherwise(0.0D); a.set(3);/*from w w w . j a v a2 s. c o m*/ b.set(4); System.out.println(a.get()); System.out.println(b.get()); System.out.println(aBinding.get()); a.set(2); b.set(2); System.out.println(a.get()); System.out.println(b.get()); System.out.println(aBinding.get()); }
From source file:edu.kit.trufflehog.view.jung.visualization.FXVisualizationViewer.java
synchronized private void initEdge(IConnection edge) { final Pair<INode> pair = this.layout.getGraph().getEndpoints(edge); if (pair.getSecond().getAddress().isMulticast()) { // TODO check or do something with this (generify the getShape command?) final Circle destCircle = (Circle) pair.getFirst().getComponent(ViewComponent.class).getRenderer() .getShape();//from w w w. j a va 2 s . c om final Shape shape = edge.getComponent(ViewComponent.class).getRenderer().getShape(); shape.layoutXProperty().bind(destCircle.layoutXProperty()); shape.layoutYProperty().bind(destCircle.layoutYProperty()); canvas.getChildren().add(shape); shape.setPickOnBounds(false); shape.setMouseTransparent(true); return; } // source and destination shape final Shape srcShape = pair.getFirst().getComponent(ViewComponent.class).getRenderer().getShape(); final Shape destShape = pair.getSecond().getComponent(ViewComponent.class).getRenderer().getShape(); // the positions of the shapes final DoubleBinding srcX = srcShape.layoutXProperty().add(srcShape.translateXProperty()); final DoubleBinding srcY = srcShape.layoutYProperty().add(srcShape.translateYProperty()); final DoubleBinding destX = destShape.layoutXProperty().add(destShape.translateXProperty()); final DoubleBinding destY = destShape.layoutYProperty().add(destShape.translateYProperty()); // the direction vector from source to destination (deltaX, deltaY) final DoubleBinding deltaX = destX.subtract(srcX); final DoubleBinding deltaY = destY.subtract(srcY); // the length of the direction vector final DoubleBinding length = MyBindings .sqrt(Bindings.add(MyBindings.pow2(deltaX), MyBindings.pow2(deltaY))); // the normalized direction vector final DoubleBinding normalX = deltaX.divide(length); final DoubleBinding normalY = deltaY.divide(length); // cast the shapes to circles (because right now i know they are circles) //TODO make this for arbitrary shapes final Circle destCircle = (Circle) destShape; final Circle srcCircle = (Circle) srcShape; // get the real source by multiplying the normal with the radius and the scale of the shape final DoubleBinding realSoureX = srcX .add(normalX.multiply(srcCircle.radiusProperty().multiply(srcShape.scaleXProperty()))); final DoubleBinding realSoureY = srcY .add(normalY.multiply(srcCircle.radiusProperty().multiply(srcShape.scaleYProperty()))); // get the real destination by multipling the normal vector with the length minus the radius and scale of the destination shape final DoubleBinding realDestX = srcX.add(normalX .multiply(length.subtract(destCircle.radiusProperty().multiply(destShape.scaleXProperty())))); final DoubleBinding realDestY = srcY.add(normalY .multiply(length.subtract(destCircle.radiusProperty().multiply(destShape.scaleYProperty())))); final IEdgeRenderer edgeRenderer = (IEdgeRenderer) edge.getComponent(ViewComponent.class).getRenderer(); edgeRenderer.getArrowShape().layoutXProperty().bind(realDestX); edgeRenderer.getArrowShape().layoutYProperty().bind(realDestY); final QuadCurve curve = edgeRenderer.getLine(); curve.setCacheHint(CacheHint.SPEED); curve.addEventFilter(MouseEvent.MOUSE_PRESSED, edgeGestures.getOnMousePressedEventHandler(edge)); curve.addEventFilter(MouseEvent.MOUSE_RELEASED, edgeGestures.getOnMouseReleasedEventHandler(edge)); edgeRenderer.getArrowShape().addEventFilter(MouseEvent.MOUSE_PRESSED, edgeGestures.getOnMousePressedEventHandler(edge)); edgeRenderer.getArrowShape().addEventFilter(MouseEvent.MOUSE_RELEASED, edgeGestures.getOnMouseReleasedEventHandler(edge)); /* // make the edge clickable curve.setOnMouseClicked(e -> { if (e.getButton() != MouseButton.PRIMARY) { return; } logger.debug(edge.getSrc().getComponent(NodeInfoComponent.class).toString() + " --[" + edge.getComponent(EdgeStatisticsComponent.class).getTraffic() + "]-->" + edge.getDest().getComponent(NodeInfoComponent.class).toString()); // edge.getComponent(ViewComponent.class).getRenderer().togglePicked(); }); edgeRenderer.getArrowShape().setOnMouseClicked(e -> { if (e.getButton() != MouseButton.PRIMARY) { return; } logger.debug(edge.getSrc().getComponent(NodeInfoComponent.class).toString() + " --[" + edge.getComponent(EdgeStatisticsComponent.class).getTraffic() + "]-->" + edge.getDest().getComponent(NodeInfoComponent.class).toString()); // edge.getComponent(ViewComponent.class).getRenderer().togglePicked(); });*/ //get the edge size binding by dividing the total traffic with the local traffic DoubleBinding edgeSize = MyBindings .divideIntToDouble(edge.getComponent(EdgeStatisticsComponent.class).getTrafficProperty(), port.getMaxConnectionSizeProperty()) .multiply(8).add(2); curve.strokeWidthProperty().bind(edgeSize.multiply(edgeRenderer.edgeWidthMultiplierProperty())); // bind the ending to the real destionaion point curve.endXProperty().bind(realDestX); curve.endYProperty().bind(realDestY); // bind the source to the real source point curve.startXProperty().bind(realSoureX); curve.startYProperty().bind(realSoureY); NumberBinding normalVectorX = Bindings.subtract(realDestY, realSoureY).negate(); NumberBinding normalVectorY = Bindings.subtract(realDestX, realSoureX); NumberBinding centerPointX = Bindings.divide(Bindings.add(curve.endXProperty(), curve.startXProperty()), 2); NumberBinding centerPointY = Bindings.divide(Bindings.add(curve.endYProperty(), curve.startYProperty()), 2); NumberBinding normalLength = MyBindings .sqrt(Bindings.add(normalVectorX.multiply(normalVectorX), normalVectorY.multiply(normalVectorY))); NumberBinding normalizedNVX = normalVectorX.divide(normalLength); NumberBinding normalizedNVY = normalVectorY.divide(normalLength); NumberBinding bezierPointOffset = length.multiply(.1); curve.controlXProperty().bind(Bindings.add(centerPointX, normalizedNVX.multiply(bezierPointOffset))); curve.controlYProperty().bind(Bindings.add(centerPointY, normalizedNVY.multiply(bezierPointOffset))); // TODO do this in component curve.setFill(null); canvas.getChildren().add(edgeRenderer.getArrowShape()); // add the edge to the canvas canvas.getChildren().add(curve); }