Java IntegerBinding类代码示例

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
public PointingHeroIcon(ObservableEntity oe) {
    super(oe);

    shape = new Polygon(
        0, -200, -120, 200, 120, 200
    );

    shape.fillProperty().bind(getPlayerColor());

    ObjectBinding<Vector> angRotVector = oe.getPropertyBinding(Vector.class, "CBodyComponent.m_angRotation", null);
    DoubleBinding angRot = Bindings.createDoubleBinding(() -> (double) angRotVector.get().getElement(1), angRotVector);

    IntegerBinding angDiff = Bindings.selectInteger(oe.getPropertyBinding(Integer.class, "m_anglediff", 0));

    shape.translateXProperty().bind(getMapX());
    shape.translateYProperty().bind(getMapY());
    shape.rotateProperty().bind(getBaseAngle().add(angRot).add(angDiff));
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
@Test
public void testDivideSafeIntegerWithDefaultValue(){
    IntegerProperty a = new SimpleIntegerProperty();
    IntegerProperty b = new SimpleIntegerProperty();

    IntegerProperty defaultValue = new SimpleIntegerProperty(10);

    final IntegerBinding quotient = NumberBindings.divideSafe(a, b, defaultValue);

    assertThat(quotient).hasSameValue(defaultValue);

    a.set(10);
    assertThat(quotient).hasSameValue(defaultValue);

    b.set(5);
    assertThat(quotient).hasValue(2);

    a.set(12);
    assertThat(quotient).hasValue(2);

    b.set(0);
    assertThat(quotient).hasSameValue(defaultValue);
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
private IntegerBinding convertXModelCoordinateToXPixelCoordinate(ObservableDoubleValue xModel)
{

    return new IntegerBinding() {
        {
            this.bind(xModel,oneUnitInModelEqualsHowManyPixels,pixelOffsetToSimulateNegativeXCoordinate);
        }
        @Override
        protected int computeValue() {
            int newValue = (int) Math.round(xModel.get() * oneUnitInModelEqualsHowManyPixels.get() +
                    pixelOffsetToSimulateNegativeXCoordinate.doubleValue());
            assert newValue >= 0; //new value must always be positive!
            return newValue;
        }
    };
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
private IntegerBinding convertYModelCoordinateToYPixelCoordinate(ObservableDoubleValue yModel)
{

    return new IntegerBinding() {
        {
            this.bind(yModel,oneUnitInModelEqualsHowManyPixels,pixelOffsetToSimulateNegativeYCoordinate);
        }
        @Override
        protected int computeValue() {
            int newValue = (int) Math.round(yModel.get() * oneUnitInModelEqualsHowManyPixels.get() +
                    pixelOffsetToSimulateNegativeYCoordinate.doubleValue());
            assert newValue >= 0; //new value must always be positive!
            return newValue;
        }
    };
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
@Test
public void test() {
    IntegerProperty src = new SimpleIntegerProperty(0);
    IntegerBinding twice = src.multiply(2);
    Var<Number> twiceVar = Var.fromVal(twice, n -> src.set(n.intValue() / 2));

    List<Number> values = new ArrayList<>();
    EventStreams.valuesOf(twiceVar).subscribe(values::add);

    src.set(1);
    twiceVar.setValue(4);
    twiceVar.setValue(5); // no effect
    twiceVar.setValue(7); // will become 6

    assertEquals(Arrays.asList(0, 2, 4, 6), values);
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
public static IntegerBinding toIntegerBinding(ObservableValue<? extends Number> ov) {
  return new IntegerBinding() {
    {
      bind(ov);
    }

    @Override
    protected int computeValue() {
      return ov.getValue() == null ? 0 : ov.getValue().intValue();
    }
  };
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
protected ObjectBinding<Paint> getTeamColor() {
    IntegerBinding teamNum = getTeamNum();
    return Bindings.createObjectBinding(() -> {
        int n = teamNum.get();
        switch (n) {
            case 2:
                return Color.GREEN;
            case 3:
                return Color.RED;
            default:
                return Color.GRAY;
        }
    }, teamNum);
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
protected ObjectBinding<Paint> getPlayerColor() {
    IntegerBinding playerId = getPlayerId();
    return Bindings.createObjectBinding(() -> {
        int n = playerId.get();
        if (n < 0 || n > 9) {
            return Color.WHITE;
        } else {
            return PLAYER_COLORS[n];
        }
    }, playerId);
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
public IntegerBinding failedRunsCountProperty() {
	return Bindings.createIntegerBinding(new Callable<Integer>() {
		@Override
		public Integer call() throws Exception {
			int result = 0;
			for (TestRunModel testRunModel : getTestRuns()) {
				if (testRunModel.getRun().isFailedRun()) result++;
			}
			return result;
		}
	}, testRunsProperty());
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
private Pane setupStatesPane() {
	final Label titleLabel = new Label("All execution states (0)");
	nbStates.addListener((v, o, n) -> {
		String s = "All execution states (" + n.intValue() + ")";
		Platform.runLater(() -> {
			titleLabel.setText(s);
			titleLabel.setContentDisplay(ContentDisplay.RIGHT);
			final ImageView nodeGraphic = new ImageView();
			nodeGraphic.setImage(playGraphic);
			titleLabel.setGraphic(nodeGraphic);
			isInReplayMode.addListener((val, old, neu) -> {
				if (old != neu) {
					if (neu) {
						nodeGraphic.setImage(replayGraphic);
					} else {
						nodeGraphic.setImage(playGraphic);
					}
				}
			});
		});
	});
	titleLabel.setFont(statesFont);
	VBox.setMargin(titleLabel, HALF_MARGIN_INSETS);
	titleLabel.setAlignment(Pos.CENTER);
	final ScrollBar scrollBar = new ScrollBar();
	scrollBar.setVisibleAmount(1);
	scrollBar.setBlockIncrement(10);
	scrollBar.setMin(0);
	final IntegerBinding statesRange = visibleStatesRange.subtract(1);
	scrollBar.disableProperty().bind(statesRange.lessThanOrEqualTo(0));
	scrollBar.maxProperty().bind(statesRange);
	scrollBar.valueProperty().addListener((v, o, n) -> {
		if (o.intValue() != n.intValue() && n.intValue() != currentState.intValue()) {
			currentState.set(n.intValue());
		}
	});
	currentState.addListener((v, o, n) -> {
		if (o.intValue() != n.intValue() && n.intValue() != scrollBar.valueProperty().intValue()) {
			scrollBar.setValue(n.intValue());
		}
	});
	final HBox hBox = new HBox();
	final Polygon arrow = new Polygon(2.5, 10, 10, 5, 2.5, 0);
	HBox.setMargin(arrow, HALF_MARGIN_INSETS);
	final Label toggleValuesLabel = new Label("Timeline for dynamic information	");
	toggleValuesLabel.setFont(statesFont);
	hBox.setAlignment(Pos.CENTER_LEFT);
	hBox.getChildren().addAll(arrow, toggleValuesLabel);
	hBox.setCursor(Cursor.HAND);
	hBox.setOnMouseClicked((e) -> {
		if (bodyScrollPane.isVisible()) {
			bodyScrollPane.setVisible(false);
			arrow.setRotate(0);
		} else {
			bodyScrollPane.setVisible(true);
			arrow.setRotate(90);
		}
	});
	VBox.setMargin(hBox, HALF_MARGIN_INSETS);
	headerPane.getChildren().addAll(scrollBar, titleLabel, statesPane, hBox);
	VBox.setMargin(statesPane, MARGIN_INSETS);

	return headerPane;
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
public void CalculateNewIndicatorCanvasHeight(){
    //This binding will make sure the main chart height is always roughly twice as indicator's height
    IntegerBinding size = (IntegerBinding) Bindings.size(chartPaneList).add(new SimpleIntegerProperty(2));
    NumberBinding sub = Bindings.divide(chartAreaHeight, size);
    indicatorCanvasHeightProperty.setValue(sub.getValue());
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
public IntegerBinding selectInteger(Function<S, ? extends ObservableIntegerValue> childPropertyAccessor) {
    return selectInteger(childPropertyAccessor, 0);
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
public IntegerBinding mapToInteger(Function<S, Integer> childValueAccessor) {
    return mapToInteger(childValueAccessor, 0);
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
protected IntegerBinding getCellX() {
    return Bindings.selectInteger(oe.getPropertyBinding(Integer.class, "CBodyComponent.m_cellX", 0));
}
 

import javafx.beans.binding.IntegerBinding; //导入依赖的package包/类
protected IntegerBinding getCellY() {
    return Bindings.selectInteger(oe.getPropertyBinding(Integer.class, "CBodyComponent.m_cellY", 0));
}