java类javafx.beans.property.ReadOnlyDoubleProperty的实例源码

private void initProgressBinding() {
    DoubleExpression tmp = constantOf(0);

    for (Command command : registeredCommands) {
        final ReadOnlyDoubleProperty progressProperty = command.progressProperty();

        /**
         * When the progress of a command is "undefined", the progress property has a value of -1.
         * But in our use case we like to have a value of 0 in this case. 
         * Therefore we create a custom binding here.
         */
        final DoubleBinding normalizedProgress = Bindings
                .createDoubleBinding(() -> (progressProperty.get() == -1) ? 0.0 : progressProperty.get(),
                        progressProperty);

        tmp = tmp.add(normalizedProgress);
    }

    int divisor = registeredCommands.isEmpty() ? 1 : registeredCommands.size();
    progress.bind(Bindings.divide(tmp, divisor));
}

private void initProgressBinding() {
    DoubleExpression tmp = constantOf(0);

    for (Command command : registeredCommands) {
        final ReadOnlyDoubleProperty progressProperty = command.progressProperty();

        /**
         * When the progress of a command is "undefined", the progress property has a value of -1.
         * But in our use case we like to have a value of 0 in this case. 
         * Therefore we create a custom binding here.
         */
        final DoubleBinding normalizedProgress = Bindings
                .createDoubleBinding(() -> (progressProperty.get() == -1) ? 0.0 : progressProperty.get(),
                        progressProperty);

        tmp = tmp.add(normalizedProgress);
    }

    int divisor = registeredCommands.isEmpty() ? 1 : registeredCommands.size();
    progress.bind(Bindings.divide(tmp, divisor));
}

static ReadOnlyDoubleProperty fillImage(ImageView imageView, int zoom, long i, long j) {
    Image image = fromFileCache(zoom, i, j);
    if (image == null) {
        String urlString = host + zoom + "/" + i + "/" + j + ".png";
        if (hasFileCache) {
            Task<Object> task = new Task() {
                @Override
                protected Object call() throws Exception {
                    cacheThread.cacheImage(urlString, zoom, i, j);
                    return null; // can't return image yet
                }
            };
            Thread t = new Thread(task);
            t.start();
        }
        image = new Image(urlString, true);
    }
    imageView.setImage(image);
    return image.progressProperty();
}

public MenuBar buildMenuBarWithMenus(HTMLEditor editor, final ReadOnlyDoubleProperty menuWidthProperty, String STYLE_CSS){
    MenuBar menuBar = new MenuBar();
    menuBar.setStyle(STYLE_CSS);


    // Add File menu to menu bar
    menuBar.getMenus().add(new FileMenuBuilder().getProduct(editor));
    //Add Edit menu to menu bar
    menuBar.getMenus().add(new EditMenuBuilder().getProduct(editor)) ;
    //Add Insert menu to menu bar
    menuBar.getMenus().add(new InsertMenuBuilder().getProduct(editor));
    //Add Indent menu to menu bar
    menuBar.getMenus().add(new IndentMenuBuilder().getProduct(editor));
    // Add View menu to menu bar
    menuBar.getMenus().add(new ViewMenuBuilder().getProduct(editor));


    // bind width of menu bar to width of associated stage
    menuBar.prefWidthProperty().bind(menuWidthProperty);
    return menuBar;
}

public DraggableItem(SpriteObject item, ReadOnlyDoubleProperty width, ReadOnlyDoubleProperty height, SimpleDoubleProperty x, SimpleDoubleProperty y){
    myItem=item;
    myWidth=item.getImage().getFitWidth();
    myHeight=item.getImage().getFitHeight();
    gridWidth=width.getValue().doubleValue();
    gridHeight=height.getValue().doubleValue();
    startX=x.getValue().doubleValue();
    startY=y.getValue().doubleValue();
    addListener(x, (toChange)->changeX(toChange));
    addListener(y, (toChange)->changeY(toChange));
    addListener(myItem.getObservableWidth(), (toChange)->changeWidth(toChange));
    addListener(myItem.getObservableHeight(), (toChange)->changeHeight(toChange));
    addListener(width, (toChange)->changeGridWidth(toChange));
    addListener(height, (toChange)->changeGridHeight(toChange));
    drag();
}

/** Replies the property for the arc width.
 *
 * @return the arcWidth property.
 */
public DoubleProperty arcWidthProperty() {
    if (this.arcWidth == null) {
        this.arcWidth = new DependentSimpleDoubleProperty<ReadOnlyDoubleProperty>(
                this, MathFXAttributeNames.ARC_WIDTH, widthProperty()) {
            @Override
            protected void invalidated(ReadOnlyDoubleProperty dependency) {
                final double value = get();
                if (value < 0.) {
                    set(0.);
                } else {
                    final double maxArcWidth = dependency.get() / 2.;
                    if (value > maxArcWidth) {
                        set(maxArcWidth);
                    }
                }
            }
        };
    }
    return this.arcWidth;
}

/** Replies the property for the arc height.
 *
 * @return the arcHeight property.
 */
public DoubleProperty arcHeightProperty() {
    if (this.arcHeight == null) {
        this.arcHeight = new DependentSimpleDoubleProperty<ReadOnlyDoubleProperty>(
                this, MathFXAttributeNames.ARC_HEIGHT, heightProperty()) {
            @Override
            protected void invalidated(ReadOnlyDoubleProperty dependency) {
                final double value = get();
                if (value < 0.) {
                    set(0.);
                } else {
                    final double maxArcHeight = dependency.get() / 2.;
                    if (value > maxArcHeight) {
                        set(maxArcHeight);
                    }
                }
            }
        };
    }
    return this.arcHeight;
}

@Test
public void widthProperty() {
    assertEpsilonEquals(5, this.shape.getWidth());

    ReadOnlyDoubleProperty property = this.shape.widthProperty();
    assertNotNull(property);
    assertEpsilonEquals(5, property.get());

    this.shape.setMinX(7);
    assertEpsilonEquals(3, property.get());

    this.shape.setMinX(-5);
    assertEpsilonEquals(15, property.get());

    this.shape.setMaxX(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void heightProperty() {
    assertEpsilonEquals(10, this.shape.getHeight());

    ReadOnlyDoubleProperty property = this.shape.heightProperty();
    assertNotNull(property);
    assertEpsilonEquals(10, property.get());

    this.shape.setMinY(9);
    assertEpsilonEquals(9, property.get());

    this.shape.setMinY(-5);
    assertEpsilonEquals(23, property.get());

    this.shape.setMaxY(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void widthProperty() {
    assertEpsilonEquals(5, this.shape.getWidth());

    ReadOnlyDoubleProperty property = this.shape.widthProperty();
    assertNotNull(property);
    assertEpsilonEquals(5, property.get());

    this.shape.setMinX(7);
    assertEpsilonEquals(3, property.get());

    this.shape.setMinX(-5);
    assertEpsilonEquals(15, property.get());

    this.shape.setMaxX(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void heightProperty() {
    assertEpsilonEquals(10, this.shape.getHeight());

    ReadOnlyDoubleProperty property = this.shape.heightProperty();
    assertNotNull(property);
    assertEpsilonEquals(10, property.get());

    this.shape.setMinY(9);
    assertEpsilonEquals(9, property.get());

    this.shape.setMinY(-5);
    assertEpsilonEquals(23, property.get());

    this.shape.setMaxY(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void widthProperty() {
    assertEpsilonEquals(5, this.shape.getWidth());

    ReadOnlyDoubleProperty property = this.shape.widthProperty();
    assertNotNull(property);
    assertEpsilonEquals(5, property.get());

    this.shape.setMinX(7);
    assertEpsilonEquals(3, property.get());

    this.shape.setMinX(-5);
    assertEpsilonEquals(15, property.get());

    this.shape.setMaxX(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void heightProperty() {
    assertEpsilonEquals(10, this.shape.getHeight());

    ReadOnlyDoubleProperty property = this.shape.heightProperty();
    assertNotNull(property);
    assertEpsilonEquals(10, property.get());

    this.shape.setMinY(9);
    assertEpsilonEquals(9, property.get());

    this.shape.setMinY(-5);
    assertEpsilonEquals(23, property.get());

    this.shape.setMaxY(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void widthProperty() {
    assertEpsilonEquals(5, this.shape.getWidth());

    ReadOnlyDoubleProperty property = this.shape.widthProperty();
    assertNotNull(property);
    assertEpsilonEquals(5, property.get());

    this.shape.setMinX(7);
    assertEpsilonEquals(3, property.get());

    this.shape.setMinX(-5);
    assertEpsilonEquals(15, property.get());

    this.shape.setMaxX(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void heightProperty() {
    assertEpsilonEquals(10, this.shape.getHeight());

    ReadOnlyDoubleProperty property = this.shape.heightProperty();
    assertNotNull(property);
    assertEpsilonEquals(10, property.get());

    this.shape.setMinY(9);
    assertEpsilonEquals(9, property.get());

    this.shape.setMinY(-5);
    assertEpsilonEquals(23, property.get());

    this.shape.setMaxY(0);
    assertEpsilonEquals(5, property.get());
}

@Test
public void depthProperty() {
    assertEpsilonEquals(0, this.shape.getDepth());

    ReadOnlyDoubleProperty property = this.shape.depthProperty();
    assertNotNull(property);
    assertEpsilonEquals(0, property.get());

    this.shape.setMinZ(9);
    assertEpsilonEquals(0, property.get());

    this.shape.setMinZ(-5);
    assertEpsilonEquals(14, property.get());

    this.shape.setMaxZ(0);
    assertEpsilonEquals(5, property.get());
}

private Pane createTraceWidget(ITraceExtractor<Step<?>, State<?,?>, TracedObject<?>, Dimension<?>, Value<?>> extractor, String label, ReadOnlyDoubleProperty width) {
    final Pane pane = new Pane();
    pane.setBackground(TRANSPARENT_BACKGROUND);
    final Rectangle rectangle = new Rectangle(0, 0, 0, 12);
    rectangle.setFill(Color.LIGHTGRAY);
    rectangle.widthProperty().bind(width.subtract(10));
    rectangle.setArcHeight(12);
    rectangle.setArcWidth(12);
    Label text = new Label(label);
    text.setTextOverrun(OverrunStyle.ELLIPSIS);
    text.setAlignment(Pos.CENTER);
    text.setMouseTransparent(true);
    text.setTextFill(Color.WHITE);
    text.setFont(FONT);
    text.setMaxWidth(0);
    text.maxWidthProperty().bind(rectangle.widthProperty());
    StackPane layout = new StackPane();
    layout.getChildren().addAll(rectangle, text);
    pane.getChildren().add(layout);
    layout.setTranslateY(13);
    layout.setTranslateX(5);
    pane.setPrefHeight(25);
    pane.setMinHeight(25);
    pane.setMaxHeight(25);

    final Shape arrow1 = createCursor();
    final Shape arrow2 = createCursor();
    arrow1.setTranslateX(5);
    arrow1.setTranslateY(4);
    arrow2.translateXProperty().bind(rectangle.widthProperty().add(5));
    arrow2.setTranslateY(4);
    pane.getChildren().add(arrow1);
    pane.getChildren().add(arrow2);

    return pane;
}

/**
 * create a horizontal axis
 *
 * @param maxReadLength
 * @return axis
 */
public static Pane createAxis(final ReadOnlyIntegerProperty maxReadLength, final ReadOnlyDoubleProperty widthProperty) {
    final Pane pane = new Pane();
    pane.prefWidthProperty().bind(widthProperty);

    final NumberAxis axis = new NumberAxis();
    axis.setSide(Side.TOP);
    axis.setAutoRanging(false);
    axis.setLowerBound(0);
    axis.prefHeightProperty().set(20);
    axis.prefWidthProperty().bind(widthProperty.subtract(60));

    final ChangeListener<Number> changeListener = new ChangeListener<Number>() {
        @Override
        public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
            int minX = Math.round(maxReadLength.get() / 2000.0f); // at most 2000 major ticks
            for (int x = 10; x < 10000000; x *= 10) {
                if (x >= minX && widthProperty.doubleValue() * x >= 50 * maxReadLength.doubleValue()) {
                    axis.setUpperBound(maxReadLength.get());
                    axis.setTickUnit(x);
                    return;
                }
            }
            axis.setTickUnit(maxReadLength.get());
            axis.setUpperBound(maxReadLength.get());
        }
    };

    maxReadLength.addListener(changeListener);
    widthProperty.addListener(changeListener);

    pane.getChildren().add(axis);
    return pane;
}

/**
 * constructor
 *
 * @param doc
 * @param cNames
 * @param classificationName
 * @param tableView
 */
public TableItemTask(Document doc, String[] cNames, String classificationName, Set<Integer> classIds, TableView<TableItem> tableView, FloatProperty maxBitScore, FloatProperty maxNormalizedBitScore, IntegerProperty maxReadLength, ReadOnlyDoubleProperty layoutWidth) {
    this.doc = doc;
    this.cNames = cNames;
    this.classificationName = classificationName;
    this.classIds = classIds;
    this.tableView = tableView;
    this.maxBitScore = maxBitScore;
    this.maxNormalizedBitScore = maxNormalizedBitScore;
    this.maxReadLength = maxReadLength;
    this.layoutWidth = layoutWidth;
}

public WCFXPanel(RecordingManager r, ReadOnlyDoubleProperty heightProp, ReadOnlyDoubleProperty widthProp) {
    rManager = r;
    wcImg = new ImageView();
    setCenter(wcImg);

    Platform.runLater(new Runnable() {
        @Override
        public void run() {
            initView(heightProp, widthProp);
        }
    });
}

private void initView(ReadOnlyDoubleProperty heightProp, ReadOnlyDoubleProperty widthProp)
{
    wcImg.fitWidthProperty().bind(widthProp);
    wcImg.fitHeightProperty().bind(heightProp);
    wcImg.setPreserveRatio(true);
    wcImg.minWidth(0);
    wcImg.minHeight(0);
    minWidth(0);
    minHeight(0);
}

@MustCallOnJavaFXThread
public LogView( BindableValue<Font> fontValue,
                ReadOnlyDoubleProperty widthProperty,
                HighlightOptions highlightOptions,
                FileContentReader fileContentReader,
                TaskRunner taskRunner ) {
    this.highlightOptions = highlightOptions;
    this.fileContentReader = fileContentReader;
    this.taskRunner = taskRunner;
    this.selectionHandler = new SelectionHandler( this );
    this.file = fileContentReader.getFile();

    final LogLineColors logLineColors = highlightOptions.logLineColorsFor( "" );
    final NumberBinding width = Bindings.max( widthProperty(), widthProperty );

    logLineFactory = () -> new LogLine( fontValue, width,
            logLineColors.getBackground(), logLineColors.getFill() );

    for ( int i = 0; i < MAX_LINES; i++ ) {
        getChildren().add( logLineFactory.get() );
    }

    this.colorChangeListener = ( Observable observable ) -> {
        for ( int i = 0; i < MAX_LINES; i++ ) {
            updateLine( i );
        }
    };

    highlightOptions.getObservableExpressions().addListener( colorChangeListener );
    highlightOptions.getStandardLogColors().addListener( colorChangeListener );

    tailingFile.addListener( event -> {
        if ( tailingFile.get() ) {
            onFileChange();
        }
    } );

    this.fileChangeWatcher = new FileChangeWatcher( file, taskRunner, this::onFileChange );
}

private Pane createTraceWidget(ITraceExtractor extractor, String label, ReadOnlyDoubleProperty width) {
    final Pane pane = new Pane();
    pane.setBackground(TRANSPARENT_BACKGROUND);
    final Rectangle rectangle = new Rectangle(0, 0, 0, 12);
    rectangle.setFill(Color.LIGHTGRAY);
    rectangle.widthProperty().bind(width.subtract(10));
    rectangle.setArcHeight(12);
    rectangle.setArcWidth(12);
    Label text = new Label(label);
    text.setTextOverrun(OverrunStyle.ELLIPSIS);
    text.setAlignment(Pos.CENTER);
    text.setMouseTransparent(true);
    text.setTextFill(Color.WHITE);
    text.setFont(FONT);
    text.setMaxWidth(0);
    text.maxWidthProperty().bind(rectangle.widthProperty());
    StackPane layout = new StackPane();
    layout.getChildren().addAll(rectangle, text);
    pane.getChildren().add(layout);
    layout.setTranslateY(13);
    layout.setTranslateX(5);
    pane.setPrefHeight(25);
    pane.setMinHeight(25);
    pane.setMaxHeight(25);

    final Group group1 = new Group();
    final Label label1 = new Label();
    final Shape arrow1 = createCursor();
    final Group group2 = new Group();
    final Shape arrow2 = createCursor();
    arrow1.setTranslateX(5);
    arrow1.setTranslateY(4);
    arrow2.translateXProperty().bind(rectangle.widthProperty().add(5));
    arrow2.setTranslateY(4);
    pane.getChildren().add(arrow1);
    pane.getChildren().add(arrow2);

    return pane;
}

public void addDoubleListener(ReadOnlyDoubleProperty prop, DoubleChangeListener listener){
    prop.addListener(new ChangeListener<Number>(){
        public void changed(ObservableValue<? extends Number> arg0,
                Number arg1, Number arg2) {
            listener.change(arg2.doubleValue());
        }
    });
}

private void addListener(ReadOnlyDoubleProperty readOnlyDoubleProperty, DoubleChangeListener doubleChange){
    readOnlyDoubleProperty.addListener(new ChangeListener<Number>(){
        @Override
        public void changed(ObservableValue<? extends Number> arg0,
                Number arg1, Number arg2) {
            doubleChange.change((arg2.doubleValue()));
        }   
    });
}

public RfxVerticalFlingScroller(Node node, ReadOnlyDoubleProperty totalContentHeightProperty) {
    this.node = node;
    this.totalContentHeightProperty = totalContentHeightProperty;
    this.velocityTracker = new VelocityTracker();
    node.setOnMousePressed(createOnMousePressedHandler());
    node.setOnMouseReleased(createOnMouseReleasedHandler());
    node.setOnMouseDragged(createOnMouseDraggerdHandler());
}

private static ReadOnlyDoubleProperty createTotalContentHeightProperty(ListView<?> listView) {
    return new ReadOnlyDoublePropertyBase() {

        @SuppressWarnings({ "rawtypes" })
        @Override
        public double get() {
            VirtualFlow flow = (VirtualFlow) listView.lookup(".virtual-flow");
            int nrOfItems = listView.getItems().size();
            if (nrOfItems == 0) {
                return 0;
            }
            IndexedCell cell = flow.getCell(0);
            // assuming all cells have same size
            double cellHeight = cell.getBoundsInLocal().getHeight();
            double totalContentHeight = cellHeight * nrOfItems;
            return totalContentHeight;
        }

        @Override
        public String getName() {
            return null;
        }

        @Override
        public Object getBean() {
            return null;
        }
    };
}

@Test
public void testReadOnlyDoubleProperty(){
    ReadOnlyDoubleProperty actual = new SimpleDoubleProperty(30.2);
    assertThat(actual).hasValue(30.2);

    assertThat(actual).hasSameValue(actual);
}

/** Replies the x property.
 *
 * @return the x property.
 */
@Pure
public ReadOnlyDoubleProperty xProperty() {
    if (isBound()) {
        return super.get().xProperty();
    }
    return internalXProperty().getReadOnlyProperty();
}

/** Replies the y property.
 *
 * @return the y property.
 */
@Pure
public ReadOnlyDoubleProperty yProperty() {
    if (isBound()) {
        return super.get().yProperty();
    }
    return internalYProperty().getReadOnlyProperty();
}