Spec-Zone.ru › OpenJavaFX 17

Class Axis<T>

java.lang.Object
javafx.scene.Node
javafx.scene.Parent
javafx.scene.layout.Region
javafx.scene.chart.Axis<T>
All Implemented Interfaces:
Styleable, EventTarget
Direct Known Subclasses:
CategoryAxis, ValueAxis
public abstract class Axis<T>
extends Region
Base class for all axes in JavaFX that represents an axis drawn on a chart area. It holds properties for axis auto ranging, ticks and labels along the axis.

Some examples of concrete subclasses include NumberAxis whose axis plots data in numbers and CategoryAxis whose values / ticks represent string categories along its axis.

Since:
JavaFX 2.0

Property Summary

Properties
Type Property Description
BooleanProperty animated
When true any changes to the axis and its range will be animated.
BooleanProperty autoRanging
This is true when the axis determines its range from the data automatically
ObjectProperty<String> label
The axis label
ObjectProperty<Side> side
The side of the plot which this axis is being drawn on
ObjectProperty<Paint> tickLabelFill
The fill for all tick labels
ObjectProperty<Font> tickLabelFont
The font for all tick labels
DoubleProperty tickLabelGap
The gap between tick labels and the tick mark lines
DoubleProperty tickLabelRotation
Rotation in degrees of tick mark labels from their normal horizontal.
BooleanProperty tickLabelsVisible
true if tick mark labels should be displayed
DoubleProperty tickLength
The length of tick mark lines
BooleanProperty tickMarkVisible
true if tick marks should be displayed

Properties declared in class javafx.scene.layout.Region

background, border, cacheShape, centerShape, height, insets, maxHeight, maxWidth, minHeight, minWidth, opaqueInsets, padding, prefHeight, prefWidth, scaleShape, shape, snapToPixel, width

Properties declared in class javafx.scene.Parent

needsLayout

Properties declared in class javafx.scene.Node

accessibleHelp, accessibleRoleDescription, accessibleRole, accessibleText, blendMode, boundsInLocal, boundsInParent, cacheHint, cache, clip, cursor, depthTest, disabled, disable, effectiveNodeOrientation, effect, eventDispatcher, focused, focusTraversable, hover, id, inputMethodRequests, layoutBounds, layoutX, layoutY, localToParentTransform, localToSceneTransform, managed, mouseTransparent, nodeOrientation, onContextMenuRequested, onDragDetected, onDragDone, onDragDropped, onDragEntered, onDragExited, onDragOver, onInputMethodTextChanged, onKeyPressed, onKeyReleased, onKeyTyped, onMouseClicked, onMouseDragEntered, onMouseDragExited, onMouseDragged, onMouseDragOver, onMouseDragReleased, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onRotate, onRotationFinished, onRotationStarted, onScrollFinished, onScroll, onScrollStarted, onSwipeDown, onSwipeLeft, onSwipeRight, onSwipeUp, onTouchMoved, onTouchPressed, onTouchReleased, onTouchStationary, onZoomFinished, onZoom, onZoomStarted, opacity, parent, pickOnBounds, pressed, rotate, rotationAxis, scaleX, scaleY, scaleZ, scene, style, translateX, translateY, translateZ, viewOrder, visible

Nested Class Summary

Nested Classes
Modifier and Type Class Description
static class  Axis.TickMark<T>
TickMark represents the label text, its associated properties for each tick along the Axis.

Field Summary

Fields declared in class javafx.scene.layout.Region

USE_COMPUTED_SIZE, USE_PREF_SIZE

Fields declared in class javafx.scene.Node

BASELINE_OFFSET_SAME_AS_HEIGHT

Constructor Summary

Constructors
Constructor Description
Axis()
Creates and initializes a new instance of the Axis class.

Method Summary

Modifier and Type Method Description
BooleanProperty animatedProperty()
When true any changes to the axis and its range will be animated.
protected abstract Object autoRange​(double length)
This calculates the upper and lower bound based on the data provided to invalidateRange() method.
BooleanProperty autoRangingProperty()
This is true when the axis determines its range from the data automatically
protected abstract List<T> calculateTickValues​(double length, Object range)
Calculate a list of all the data values for each tick mark in range
protected double computePrefHeight​(double width)
Computes the preferred height of this axis for the given width.
protected double computePrefWidth​(double height)
Computes the preferred width of this axis for the given height.
boolean getAnimated()
Indicates whether the changes to axis range will be animated or not.
static List<CssMetaData<? extends Styleable,​?>> getClassCssMetaData()
List<CssMetaData<? extends Styleable,​?>> getCssMetaData()
This method should delegate to Node.getClassCssMetaData() so that a Node's CssMetaData can be accessed without the need for reflection.
abstract double getDisplayPosition​(T value)
Get the display position along this axis for a given value.
String getLabel()
Gets the value of the property label.
protected abstract Object getRange()
Called to get the current axis range.
Side getSide()
Gets the value of the property side.
Paint getTickLabelFill()
Gets the value of the property tickLabelFill.
Font getTickLabelFont()
Gets the value of the property tickLabelFont.
double getTickLabelGap()
Gets the value of the property tickLabelGap.
double getTickLabelRotation()
Gets the value of the property tickLabelRotation.
double getTickLength()
Gets the value of the property tickLength.
protected abstract String getTickMarkLabel​(T value)
Get the string label name for a tick mark with the given value
ObservableList<Axis.TickMark<T>> getTickMarks()
Unmodifiable observable list of tickmarks, each TickMark directly representing a tickmark on this axis.
abstract T getValueForDisplay​(double displayPosition)
Get the data value for the given display position on this axis.
abstract double getZeroPosition()
Get the display position of the zero line along this axis.
protected void invalidateRange()
Mark the current range invalid, this will cause anything that depends on the range to be recalculated on the next layout.
void invalidateRange​(List<T> data)
Called when data has changed and the range may not be valid any more.
boolean isAutoRanging()
Gets the value of the property autoRanging.
protected boolean isRangeValid()
See if the current range is valid, if it is not then any range dependent calulcations need to redone on the next layout pass
boolean isTickLabelsVisible()
Gets the value of the property tickLabelsVisible.
boolean isTickMarkVisible()
Gets the value of the property tickMarkVisible.
abstract boolean isValueOnAxis​(T value)
Checks if the given value is plottable on this axis
ObjectProperty<String> labelProperty()
The axis label
protected void layoutChildren()
Invoked during the layout pass to layout this axis and all its content.
protected Dimension2D measureTickMarkLabelSize​(String labelText, double rotation)
Measure the size of the label for given tick mark value.
protected Dimension2D measureTickMarkSize​(T value, double rotation)
Measure the size of the label for given tick mark value.
protected Dimension2D measureTickMarkSize​(T value, Object range)
Measure the size of the label for given tick mark value.
void requestAxisLayout()
Request that the axis is laid out in the next layout pass.
void requestLayout()
We suppress requestLayout() calls here by doing nothing as we don't want changes to our children to cause layout.
void setAnimated​(boolean value)
Sets the value of the property animated.
void setAutoRanging​(boolean value)
Sets the value of the property autoRanging.
void setLabel​(String value)
Sets the value of the property label.
protected abstract void setRange​(Object range, boolean animate)
Called to set the current axis range to the given range.
void setSide​(Side value)
Sets the value of the property side.
void setTickLabelFill​(Paint value)
Sets the value of the property tickLabelFill.
void setTickLabelFont​(Font value)
Sets the value of the property tickLabelFont.
void setTickLabelGap​(double value)
Sets the value of the property tickLabelGap.
void setTickLabelRotation​(double value)
Sets the value of the property tickLabelRotation.
void setTickLabelsVisible​(boolean value)
Sets the value of the property tickLabelsVisible.
void setTickLength​(double value)
Sets the value of the property tickLength.
void setTickMarkVisible​(boolean value)
Sets the value of the property tickMarkVisible.
protected boolean shouldAnimate()
This is used to check if any given animation should run.
ObjectProperty<Side> sideProperty()
The side of the plot which this axis is being drawn on
ObjectProperty<Paint> tickLabelFillProperty()
The fill for all tick labels
ObjectProperty<Font> tickLabelFontProperty()
The font for all tick labels
DoubleProperty tickLabelGapProperty()
The gap between tick labels and the tick mark lines
DoubleProperty tickLabelRotationProperty()
Rotation in degrees of tick mark labels from their normal horizontal.
BooleanProperty tickLabelsVisibleProperty()
true if tick mark labels should be displayed
DoubleProperty tickLengthProperty()
The length of tick mark lines
protected void tickMarksUpdated()
Called during layout if the tickmarks have been updated, allowing subclasses to do anything they need to in reaction.
BooleanProperty tickMarkVisibleProperty()
true if tick marks should be displayed
abstract double toNumericValue​(T value)
All axis values must be representable by some numeric value.
abstract T toRealValue​(double value)
All axis values must be representable by some numeric value.

Methods declared in class javafx.scene.layout.Region

backgroundProperty, borderProperty, cacheShapeProperty, centerShapeProperty, computeMaxHeight, computeMaxWidth, computeMinHeight, computeMinWidth, getBackground, getBorder, getHeight, getInsets, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getOpaqueInsets, getPadding, getPrefHeight, getPrefWidth, getShape, getUserAgentStylesheet, getWidth, heightProperty, insetsProperty, isCacheShape, isCenterShape, isResizable, isScaleShape, isSnapToPixel, layoutInArea, layoutInArea, layoutInArea, layoutInArea, maxHeight, maxHeightProperty, maxWidth, maxWidthProperty, minHeight, minHeightProperty, minWidth, minWidthProperty, opaqueInsetsProperty, paddingProperty, positionInArea, positionInArea, prefHeight, prefHeightProperty, prefWidth, prefWidthProperty, resize, scaleShapeProperty, setBackground, setBorder, setCacheShape, setCenterShape, setHeight, setMaxHeight, setMaxSize, setMaxWidth, setMinHeight, setMinSize, setMinWidth, setOpaqueInsets, setPadding, setPrefHeight, setPrefSize, setPrefWidth, setScaleShape, setShape, setSnapToPixel, setWidth, shapeProperty, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapPositionX, snapPositionY, snapSize, snapSizeX, snapSizeY, snapSpace, snapSpaceX, snapSpaceY, snapToPixelProperty, widthProperty

Methods declared in class javafx.scene.Parent

getBaselineOffset, getChildren, getChildrenUnmodifiable, getManagedChildren, getStylesheets, isNeedsLayout, layout, needsLayoutProperty, requestParentLayout, setNeedsLayout, updateBounds

Methods declared in class javafx.scene.Node

accessibleHelpProperty, accessibleRoleDescriptionProperty, accessibleRoleProperty, accessibleTextProperty, addEventFilter, addEventHandler, applyCss, autosize, blendModeProperty, boundsInLocalProperty, boundsInParentProperty, buildEventDispatchChain, cacheHintProperty, cacheProperty, clipProperty, computeAreaInScreen, contains, contains, cursorProperty, depthTestProperty, disabledProperty, disableProperty, effectiveNodeOrientationProperty, effectProperty, eventDispatcherProperty, executeAccessibleAction, fireEvent, focusedProperty, focusTraversableProperty, getAccessibleHelp, getAccessibleRole, getAccessibleRoleDescription, getAccessibleText, getBlendMode, getBoundsInLocal, getBoundsInParent, getCacheHint, getClip, getContentBias, getCursor, getDepthTest, getEffect, getEffectiveNodeOrientation, getEventDispatcher, getId, getInitialCursor, getInitialFocusTraversable, getInputMethodRequests, getLayoutBounds, getLayoutX, getLayoutY, getLocalToParentTransform, getLocalToSceneTransform, getNodeOrientation, getOnContextMenuRequested, getOnDragDetected, getOnDragDone, getOnDragDropped, getOnDragEntered, getOnDragExited, getOnDragOver, getOnInputMethodTextChanged, getOnKeyPressed, getOnKeyReleased, getOnKeyTyped, getOnMouseClicked, getOnMouseDragEntered, getOnMouseDragExited, getOnMouseDragged, getOnMouseDragOver, getOnMouseDragReleased, getOnMouseEntered, getOnMouseExited, getOnMouseMoved, getOnMousePressed, getOnMouseReleased, getOnRotate, getOnRotationFinished, getOnRotationStarted, getOnScroll, getOnScrollFinished, getOnScrollStarted, getOnSwipeDown, getOnSwipeLeft, getOnSwipeRight, getOnSwipeUp, getOnTouchMoved, getOnTouchPressed, getOnTouchReleased, getOnTouchStationary, getOnZoom, getOnZoomFinished, getOnZoomStarted, getOpacity, getParent, getProperties, getPseudoClassStates, getRotate, getRotationAxis, getScaleX, getScaleY, getScaleZ, getScene, getStyle, getStyleableParent, getTransforms, getTranslateX, getTranslateY, getTranslateZ, getTypeSelector, getUserData, getViewOrder, hasProperties, hoverProperty, idProperty, inputMethodRequestsProperty, intersects, intersects, isCache, isDisable, isDisabled, isFocused, isFocusTraversable, isHover, isManaged, isMouseTransparent, isPickOnBounds, isPressed, isVisible, layoutBoundsProperty, layoutXProperty, layoutYProperty, localToParent, localToParent, localToParent, localToParent, localToParent, localToParentTransformProperty, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToSceneTransformProperty, localToScreen, localToScreen, localToScreen, localToScreen, localToScreen, lookup, lookupAll, managedProperty, mouseTransparentProperty, nodeOrientationProperty, notifyAccessibleAttributeChanged, onContextMenuRequestedProperty, onDragDetectedProperty, onDragDoneProperty, onDragDroppedProperty, onDragEnteredProperty, onDragExitedProperty, onDragOverProperty, onInputMethodTextChangedProperty, onKeyPressedProperty, onKeyReleasedProperty, onKeyTypedProperty, onMouseClickedProperty, onMouseDragEnteredProperty, onMouseDragExitedProperty, onMouseDraggedProperty, onMouseDragOverProperty, onMouseDragReleasedProperty, onMouseEnteredProperty, onMouseExitedProperty, onMouseMovedProperty, onMousePressedProperty, onMouseReleasedProperty, onRotateProperty, onRotationFinishedProperty, onRotationStartedProperty, onScrollFinishedProperty, onScrollProperty, onScrollStartedProperty, onSwipeDownProperty, onSwipeLeftProperty, onSwipeRightProperty, onSwipeUpProperty, onTouchMovedProperty, onTouchPressedProperty, onTouchReleasedProperty, onTouchStationaryProperty, onZoomFinishedProperty, onZoomProperty, onZoomStartedProperty, opacityProperty, parentProperty, parentToLocal, parentToLocal, parentToLocal, parentToLocal, parentToLocal, pickOnBoundsProperty, pressedProperty, pseudoClassStateChanged, queryAccessibleAttribute, relocate, removeEventFilter, removeEventHandler, requestFocus, resizeRelocate, rotateProperty, rotationAxisProperty, scaleXProperty, scaleYProperty, scaleZProperty, sceneProperty, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, screenToLocal, screenToLocal, screenToLocal, setAccessibleHelp, setAccessibleRole, setAccessibleRoleDescription, setAccessibleText, setBlendMode, setCache, setCacheHint, setClip, setCursor, setDepthTest, setDisable, setDisabled, setEffect, setEventDispatcher, setEventHandler, setFocused, setFocusTraversable, setHover, setId, setInputMethodRequests, setLayoutX, setLayoutY, setManaged, setMouseTransparent, setNodeOrientation, setOnContextMenuRequested, setOnDragDetected, setOnDragDone, setOnDragDropped, setOnDragEntered, setOnDragExited, setOnDragOver, setOnInputMethodTextChanged, setOnKeyPressed, setOnKeyReleased, setOnKeyTyped, setOnMouseClicked, setOnMouseDragEntered, setOnMouseDragExited, setOnMouseDragged, setOnMouseDragOver, setOnMouseDragReleased, setOnMouseEntered, setOnMouseExited, setOnMouseMoved, setOnMousePressed, setOnMouseReleased, setOnRotate, setOnRotationFinished, setOnRotationStarted, setOnScroll, setOnScrollFinished, setOnScrollStarted, setOnSwipeDown, setOnSwipeLeft, setOnSwipeRight, setOnSwipeUp, setOnTouchMoved, setOnTouchPressed, setOnTouchReleased, setOnTouchStationary, setOnZoom, setOnZoomFinished, setOnZoomStarted, setOpacity, setPickOnBounds, setPressed, setRotate, setRotationAxis, setScaleX, setScaleY, setScaleZ, setStyle, setTranslateX, setTranslateY, setTranslateZ, setUserData, setViewOrder, setVisible, snapshot, snapshot, startDragAndDrop, startFullDrag, styleProperty, toBack, toFront, toString, translateXProperty, translateYProperty, translateZProperty, usesMirroring, viewOrderProperty, visibleProperty

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods declared in interface javafx.css.Styleable

getStyleableNode, getStyleClass

Property Details

side

public final ObjectProperty<Side> sideProperty
The side of the plot which this axis is being drawn on
See Also:
getSide(), setSide(Side)

label

public final ObjectProperty<String> labelProperty
The axis label
See Also:
getLabel(), setLabel(String)

tickMarkVisible

public final BooleanProperty tickMarkVisibleProperty
true if tick marks should be displayed
See Also:
isTickMarkVisible(), setTickMarkVisible(boolean)

tickLabelsVisible

public final BooleanProperty tickLabelsVisibleProperty
true if tick mark labels should be displayed
See Also:
isTickLabelsVisible(), setTickLabelsVisible(boolean)

tickLength

public final DoubleProperty tickLengthProperty
The length of tick mark lines
See Also:
getTickLength(), setTickLength(double)

autoRanging

public final BooleanProperty autoRangingProperty
This is true when the axis determines its range from the data automatically
See Also:
isAutoRanging(), setAutoRanging(boolean)

tickLabelFont

public final ObjectProperty<Font> tickLabelFontProperty
The font for all tick labels
See Also:
getTickLabelFont(), setTickLabelFont(Font)

tickLabelFill

public final ObjectProperty<Paint> tickLabelFillProperty
The fill for all tick labels
See Also:
getTickLabelFill(), setTickLabelFill(Paint)

tickLabelGap

public final DoubleProperty tickLabelGapProperty
The gap between tick labels and the tick mark lines
See Also:
getTickLabelGap(), setTickLabelGap(double)

animated

public final BooleanProperty animatedProperty
When true any changes to the axis and its range will be animated.
See Also:
getAnimated(), setAnimated(boolean)

tickLabelRotation

public final DoubleProperty tickLabelRotationProperty
Rotation in degrees of tick mark labels from their normal horizontal.
See Also:
getTickLabelRotation(), setTickLabelRotation(double)

Constructor Details

Axis

public Axis()
Creates and initializes a new instance of the Axis class.

Method Details

getTickMarks

public ObservableList<Axis.TickMark<T>> getTickMarks()
Unmodifiable observable list of tickmarks, each TickMark directly representing a tickmark on this axis. This is updated whenever the displayed tickmarks changes.
Returns:
Unmodifiable observable list of TickMarks on this axis

getSide

public final Side getSide()
Gets the value of the property side.
Property description:
The side of the plot which this axis is being drawn on

setSide

public final void setSide(Side value)
Sets the value of the property side.
Property description:
The side of the plot which this axis is being drawn on

sideProperty

public final ObjectProperty<Side> sideProperty()
The side of the plot which this axis is being drawn on
See Also:
getSide(), setSide(Side)

getLabel

public final String getLabel()
Gets the value of the property label.
Property description:
The axis label

setLabel

public final void setLabel(String value)
Sets the value of the property label.
Property description:
The axis label

labelProperty

public final ObjectProperty<String> labelProperty()
The axis label
See Also:
getLabel(), setLabel(String)

isTickMarkVisible

public final boolean isTickMarkVisible()
Gets the value of the property tickMarkVisible.
Property description:
true if tick marks should be displayed

setTickMarkVisible

public final void setTickMarkVisible(boolean value)
Sets the value of the property tickMarkVisible.
Property description:
true if tick marks should be displayed

tickMarkVisibleProperty

public final BooleanProperty tickMarkVisibleProperty()
true if tick marks should be displayed
See Also:
isTickMarkVisible(), setTickMarkVisible(boolean)

isTickLabelsVisible

public final boolean isTickLabelsVisible()
Gets the value of the property tickLabelsVisible.
Property description:
true if tick mark labels should be displayed

setTickLabelsVisible

public final void setTickLabelsVisible(boolean value)
Sets the value of the property tickLabelsVisible.
Property description:
true if tick mark labels should be displayed

tickLabelsVisibleProperty

public final BooleanProperty tickLabelsVisibleProperty()
true if tick mark labels should be displayed
See Also:
isTickLabelsVisible(), setTickLabelsVisible(boolean)

getTickLength

public final double getTickLength()
Gets the value of the property tickLength.
Property description:
The length of tick mark lines

setTickLength

public final void setTickLength(double value)
Sets the value of the property tickLength.
Property description:
The length of tick mark lines

tickLengthProperty

public final DoubleProperty tickLengthProperty()
The length of tick mark lines
See Also:
getTickLength(), setTickLength(double)

isAutoRanging

public final boolean isAutoRanging()
Gets the value of the property autoRanging.
Property description:
This is true when the axis determines its range from the data automatically

setAutoRanging

public final void setAutoRanging(boolean value)
Sets the value of the property autoRanging.
Property description:
This is true when the axis determines its range from the data automatically

autoRangingProperty

public final BooleanProperty autoRangingProperty()
This is true when the axis determines its range from the data automatically
See Also:
isAutoRanging(), setAutoRanging(boolean)

getTickLabelFont

public final Font getTickLabelFont()
Gets the value of the property tickLabelFont.
Property description:
The font for all tick labels

setTickLabelFont

public final void setTickLabelFont(Font value)
Sets the value of the property tickLabelFont.
Property description:
The font for all tick labels

tickLabelFontProperty

public final ObjectProperty<Font> tickLabelFontProperty()
The font for all tick labels
See Also:
getTickLabelFont(), setTickLabelFont(Font)

getTickLabelFill

public final Paint getTickLabelFill()
Gets the value of the property tickLabelFill.
Property description:
The fill for all tick labels

setTickLabelFill

public final void setTickLabelFill(Paint value)
Sets the value of the property tickLabelFill.
Property description:
The fill for all tick labels

tickLabelFillProperty

public final ObjectProperty<Paint> tickLabelFillProperty()
The fill for all tick labels
See Also:
getTickLabelFill(), setTickLabelFill(Paint)

getTickLabelGap

public final double getTickLabelGap()
Gets the value of the property tickLabelGap.
Property description:
The gap between tick labels and the tick mark lines

setTickLabelGap

public final void setTickLabelGap(double value)
Sets the value of the property tickLabelGap.
Property description:
The gap between tick labels and the tick mark lines

tickLabelGapProperty

public final DoubleProperty tickLabelGapProperty()
The gap between tick labels and the tick mark lines
See Also:
getTickLabelGap(), setTickLabelGap(double)

getAnimated

public final boolean getAnimated()
Indicates whether the changes to axis range will be animated or not.
Returns:
true if axis range changes will be animated and false otherwise

setAnimated

public final void setAnimated(boolean value)
Sets the value of the property animated.
Property description:
When true any changes to the axis and its range will be animated.

animatedProperty

public final BooleanProperty animatedProperty()
When true any changes to the axis and its range will be animated.
See Also:
getAnimated(), setAnimated(boolean)

getTickLabelRotation

public final double getTickLabelRotation()
Gets the value of the property tickLabelRotation.
Property description:
Rotation in degrees of tick mark labels from their normal horizontal.

setTickLabelRotation

public final void setTickLabelRotation(double value)
Sets the value of the property tickLabelRotation.
Property description:
Rotation in degrees of tick mark labels from their normal horizontal.

tickLabelRotationProperty

public final DoubleProperty tickLabelRotationProperty()
Rotation in degrees of tick mark labels from their normal horizontal.
See Also:
getTickLabelRotation(), setTickLabelRotation(double)

isRangeValid

protected final boolean isRangeValid()
See if the current range is valid, if it is not then any range dependent calulcations need to redone on the next layout pass
Returns:
true if current range calculations are valid

invalidateRange

protected final void invalidateRange()
Mark the current range invalid, this will cause anything that depends on the range to be recalculated on the next layout.

shouldAnimate

protected final boolean shouldAnimate()
This is used to check if any given animation should run. It returns true if animation is enabled and the node is visible and in a scene.
Returns:
true if animations should happen

requestLayout

public void requestLayout()
We suppress requestLayout() calls here by doing nothing as we don't want changes to our children to cause layout. If you really need to request layout then call requestAxisLayout().
Overrides:
requestLayout in class Parent

requestAxisLayout

public void requestAxisLayout()
Request that the axis is laid out in the next layout pass. This replaces requestLayout() as it has been overridden to do nothing so that changes to children's bounds etc do not cause a layout. This was done as a optimization as the Axis knows the exact minimal set of changes that really need layout to be updated. So we only want to request layout then, not on any child change.

invalidateRange

public void invalidateRange(List<T> data)
Called when data has changed and the range may not be valid any more. This is only called by the chart if isAutoRanging() returns true. If we are auto ranging it will cause layout to be requested and auto ranging to happen on next layout pass.
Parameters:
data - The current set of all data that needs to be plotted on this axis

autoRange

protected abstract Object autoRange(double length)
This calculates the upper and lower bound based on the data provided to invalidateRange() method. This must not effect the state of the axis, changing any properties of the axis. Any results of the auto-ranging should be returned in the range object. This will we passed to setRange() if it has been decided to adopt this range for this axis.
Parameters:
length - The length of the axis in screen coordinates
Returns:
Range information, this is implementation dependent

setRange

protected abstract void setRange(Object range, boolean animate)
Called to set the current axis range to the given range. If isAnimating() is true then this method should animate the range to the new range.
Parameters:
range - A range object returned from autoRange()
animate - If true animate the change in range

getRange

protected abstract Object getRange()
Called to get the current axis range.
Returns:
A range object that can be passed to setRange() and calculateTickValues()

getZeroPosition

public abstract double getZeroPosition()
Get the display position of the zero line along this axis.
Returns:
display position or Double.NaN if zero is not in current range;

getDisplayPosition

public abstract double getDisplayPosition(T value)
Get the display position along this axis for a given value. If the value is not in the current range, the returned value will be an extrapolation of the display position. If the value is not valid for this Axis and the axis cannot display such value in any range, Double.NaN is returned
Parameters:
value - The data value to work out display position for
Returns:
display position or Double.NaN if value not valid

getValueForDisplay

public abstract T getValueForDisplay(double displayPosition)
Get the data value for the given display position on this axis. If the axis is a CategoryAxis this will be the nearest value.
Parameters:
displayPosition - A pixel position on this axis
Returns:
the nearest data value to the given pixel position or null if not on axis;

isValueOnAxis

public abstract boolean isValueOnAxis(T value)
Checks if the given value is plottable on this axis
Parameters:
value - The value to check if its on axis
Returns:
true if the given value is plottable on this axis

toNumericValue

public abstract double toNumericValue(T value)
All axis values must be representable by some numeric value. This gets the numeric value for a given data value.
Parameters:
value - The data value to convert
Returns:
Numeric value for the given data value

toRealValue

public abstract T toRealValue(double value)
All axis values must be representable by some numeric value. This gets the data value for a given numeric value.
Parameters:
value - The numeric value to convert
Returns:
Data value for given numeric value

calculateTickValues

protected abstract List<T> calculateTickValues(double length, Object range)
Calculate a list of all the data values for each tick mark in range
Parameters:
length - The length of the axis in display units
range - A range object returned from autoRange()
Returns:
A list of tick marks that fit along the axis if it was the given length

computePrefHeight

protected double computePrefHeight(double width)
Computes the preferred height of this axis for the given width. If axis orientation is horizontal, it takes into account the tick mark length, tick label gap and label height.
Overrides:
computePrefHeight in class Region
Parameters:
width - the width that should be used if preferred height depends on it
Returns:
the computed preferred width for this axis

computePrefWidth

protected double computePrefWidth(double height)
Computes the preferred width of this axis for the given height. If axis orientation is vertical, it takes into account the tick mark length, tick label gap and label height.
Overrides:
computePrefWidth in class Region
Parameters:
height - the height that should be used if preferred width depends on it
Returns:
the computed preferred width for this axis

tickMarksUpdated

protected void tickMarksUpdated()
Called during layout if the tickmarks have been updated, allowing subclasses to do anything they need to in reaction.

layoutChildren

protected void layoutChildren()
Invoked during the layout pass to layout this axis and all its content.
Overrides:
layoutChildren in class Parent

getTickMarkLabel

protected abstract String getTickMarkLabel(T value)
Get the string label name for a tick mark with the given value
Parameters:
value - The value to format into a tick label string
Returns:
A formatted string for the given value

measureTickMarkLabelSize

protected final Dimension2D measureTickMarkLabelSize(String labelText, double rotation)
Measure the size of the label for given tick mark value. This uses the font that is set for the tick marks
Parameters:
labelText - tick mark label text
rotation - The text rotation
Returns:
size of tick mark label for given value

measureTickMarkSize

protected final Dimension2D measureTickMarkSize(T value, double rotation)
Measure the size of the label for given tick mark value. This uses the font that is set for the tick marks
Parameters:
value - tick mark value
rotation - The text rotation
Returns:
size of tick mark label for given value

measureTickMarkSize

protected Dimension2D measureTickMarkSize(T value, Object range)
Measure the size of the label for given tick mark value. This uses the font that is set for the tick marks
Parameters:
value - tick mark value
range - range to use during calculations
Returns:
size of tick mark label for given value

getClassCssMetaData

public static List<CssMetaData<? extends Styleable,?>> getClassCssMetaData()
Returns:
The CssMetaData associated with this class, which may include the CssMetaData of its superclasses.
Since:
JavaFX 8.0

getCssMetaData

public List<CssMetaData<? extends Styleable,?>> getCssMetaData()
This method should delegate to Node.getClassCssMetaData() so that a Node's CssMetaData can be accessed without the need for reflection.
Specified by:
getCssMetaData in interface Styleable
Overrides:
getCssMetaData in class Region
Returns:
The CssMetaData associated with this node, which may include the CssMetaData of its superclasses.
Since:
JavaFX 8.0

© 2008, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Java, JavaFX and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Spec-Zone.ru

Настройки Оффлайн Что нового Помощь О нас
Spec-Zone .ru
спецификации, руководства, описания, API