Top Description Fields Constructors Methods
javafx.scene.control.skin

public Class SeparatorSkin

extends SkinBase<Separator>
Class Inheritance
Imports
javafx.geometry.Orientation, javafx.scene.control.Control, .Separator, .SkinBase, javafx.scene.layout.Region
Default skin implementation for the Separator control.
Since
9
See Also
Separator

Field Summary

Modifier and TypeField and Description
private static final double
DEFAULT_LENGTH

Separator's have no intrinsic length, so we need to hard code some sort of default preferred size when a separator is not otherwise being resized.

private final Region
line

The region to use for rendering the line.

Constructor Summary

AccessConstructor and Description
public
SeparatorSkin(Separator
The control that this skin should be installed onto.
control)

Creates a new SeparatorSkin instance, installing the necessary child nodes into the Control children list.

Method Summary

Modifier and TypeMethod and Description
protected double
computeMaxHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMaxHeight.

Computes the maximum allowable height of the Skin, based on the provided width.

protected double
computeMaxWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMaxWidth.

Computes the maximum allowable width of the Skin, based on the provided height.

protected double
computeMinHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMinHeight.

Computes the minimum allowable height of the Skin, based on the provided width.

protected double
computeMinWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMinWidth.

Computes the minimum allowable width of the Skin, based on the provided height.

protected double
computePrefHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computePrefHeight.

Calculates the preferred height of this SkinBase.

protected double
computePrefWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computePrefWidth.

Calculates the preferred width of this SkinBase.

public void
dispose()

Overrides javafx.scene.control.SkinBase.dispose.

Implements javafx.scene.control.Skin.dispose.

Called when a previously installed skin is about to be removed from its associated control.

protected void
layoutChildren(final double x, final double y, final double w, final double h)

Overrides javafx.scene.control.SkinBase.layoutChildren.

We only need to deal with the single "line" child region.

Inherited from javafx.scene.control.SkinBase:
computeBaselineOffsetconsumeMouseEventsexecuteAccessibleActiongetChildrengetClassCssMetaDatagetCssMetaDatagetNodegetSkinnablelayoutInArealayoutInArealayoutInAreapositionInAreapositionInAreapseudoClassStateChangedqueryAccessibleAttributeregisterChangeListenerregisterInvalidationListenerregisterListChangeListenersnappedBottomInsetsnappedLeftInsetsnappedRightInsetsnappedTopInsetsnapPositionsnapPositionXsnapPositionYsnapSizesnapSizeXsnapSizeYsnapSpacesnapSpaceXsnapSpaceYunregisterChangeListenersunregisterInvalidationListenersunregisterListChangeListeners

Field Detail

DEFAULT_LENGTHback to summary
private static final double DEFAULT_LENGTH

Separator's have no intrinsic length, so we need to hard code some sort of default preferred size when a separator is not otherwise being resized. This is the default length to use (height when vertical, width when horizontal) for computing the preferred width/height.

lineback to summary
private final Region line

The region to use for rendering the line. The line is specified via CSS. By default we use a single stroke to render the line, but the programmer could use images or whatnot from CSS instead.

Constructor Detail

SeparatorSkinback to summary
public SeparatorSkin(Separator control)

Creates a new SeparatorSkin instance, installing the necessary child nodes into the Control children list.

Parameters
control:Separator

The control that this skin should be installed onto.

Method Detail

computeMaxHeightback to summary
protected double computeMaxHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMaxHeight.

Doc from javafx.scene.control.SkinBase.computeMaxHeight.

Computes the maximum allowable height of the Skin, based on the provided width.

Annotations
@Override
computeMaxWidthback to summary
protected double computeMaxWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMaxWidth.

Doc from javafx.scene.control.SkinBase.computeMaxWidth.

Computes the maximum allowable width of the Skin, based on the provided height.

Annotations
@Override
computeMinHeightback to summary
protected double computeMinHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMinHeight.

Doc from javafx.scene.control.SkinBase.computeMinHeight.

Computes the minimum allowable height of the Skin, based on the provided width.

Annotations
@Override
computeMinWidthback to summary
protected double computeMinWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computeMinWidth.

Doc from javafx.scene.control.SkinBase.computeMinWidth.

Computes the minimum allowable width of the Skin, based on the provided height.

Annotations
@Override
computePrefHeightback to summary
protected double computePrefHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computePrefHeight.

Doc from javafx.scene.control.SkinBase.computePrefHeight.

Calculates the preferred height of this SkinBase. The default implementation calculates this height as the height of the area occupied by its managed children when they are positioned at their current positions at their preferred heights.

Annotations
@Override
computePrefWidthback to summary
protected double computePrefWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset)

Overrides javafx.scene.control.SkinBase.computePrefWidth.

Doc from javafx.scene.control.SkinBase.computePrefWidth.

Calculates the preferred width of this SkinBase. The default implementation calculates this width as the width of the area occupied by its managed children when they are positioned at their current positions at their preferred widths.

Annotations
@Override
disposeback to summary
public void dispose()

Overrides javafx.scene.control.SkinBase.dispose.

Implements javafx.scene.control.Skin.dispose.

Doc from javafx.scene.control.SkinBase.dispose.

Called when a previously installed skin is about to be removed from its associated control. This allows the skin to do clean up, like removing listeners and bindings, and undo any changes to the control's properties. After this method completes, getSkinnable() and getNode() should return null.

Calling dispose() more than once has no effect.

Annotations
@Override
layoutChildrenback to summary
protected void layoutChildren(final double x, final double y, final double w, final double h)

Overrides javafx.scene.control.SkinBase.layoutChildren.

We only need to deal with the single "line" child region. The important thing here is that we want a horizontal separator to have a line which is as wide as the separator (less the left/right padding), but as thin as it can be (based on its own pref height). The same idea for a vertical separator. It should be as tall as the separator (less the top and bottom padding) but as thin as can be (the pref width of the line).

Then position the line within the separator such that the alignment properties are honored.

Annotations
@Override