com.sun.javafx.scene.control.skin

Class SeparatorSkin

java.lang.Object

javafx.scene.control.SkinBase<C>

com.sun.javafx.scene.control.skin.BehaviorSkinBase<Separator,BehaviorBase<Separator>>

com.sun.javafx.scene.control.skin.SeparatorSkin

All Implemented Interfaces:

Skin<Separator>

public class SeparatorSkin
extends BehaviorSkinBase<Separator,BehaviorBase<Separator>>

Field Summary

Fields

Modifier and Type	Field and Description
private static 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 Region	line The region to use for rendering the line.

Fields inherited from class com.sun.javafx.scene.control.skin.BehaviorSkinBase

IS_TOUCH_SUPPORTED

Constructor Summary

Constructors

Constructor and Description
SeparatorSkin(Separator separator) Create a new SeparatorSkin.

Method Summary

Modifier and Type	Method and Description
protected double	computeMaxHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset) 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) 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) 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) 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) Calculates the preferred height of this SkinBase.
protected double	computePrefWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset) Calculates the preferred width of this SkinBase.
protected void	handleControlPropertyChanged(java.lang.String p) Skin subclasses will override this method to handle changes in corresponding control's properties.
protected void	layoutChildren(double x, double y, double w, double h) We only need to deal with the single "line" child region.

Methods inherited from class com.sun.javafx.scene.control.skin.BehaviorSkinBase

dispose, getBehavior, registerChangeListener, unregisterChangeListener

Methods inherited from class javafx.scene.control.SkinBase

computeBaselineOffset, consumeMouseEvents, executeAccessibleAction, getChildren, getClassCssMetaData, getCssMetaData, getNode, getSkinnable, layoutInArea, layoutInArea, layoutInArea, positionInArea, positionInArea, pseudoClassStateChanged, queryAccessibleAttribute, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapSize, snapSpace

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_LENGTH

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.

See Also:

Constant Field Values

line

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

SeparatorSkin

public SeparatorSkin(Separator separator)

Create a new SeparatorSkin. Just specify the separator, thanks very much.

Parameters:

separator - not null

Method Detail

handleControlPropertyChanged

protected void handleControlPropertyChanged(java.lang.String p)

Description copied from class: BehaviorSkinBase

Skin subclasses will override this method to handle changes in corresponding control's properties.

Overrides:

handleControlPropertyChanged in class BehaviorSkinBase<Separator,BehaviorBase<Separator>>

layoutChildren

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

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.

Overrides:

layoutChildren in class SkinBase<Separator>

computeMinWidth

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

Description copied from class: SkinBase

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

Overrides:

computeMinWidth in class SkinBase<Separator>

Parameters:

height - The height of the Skin, in case this value might dictate the minimum width.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the minimum width of this Skin.

computeMinHeight

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

Description copied from class: SkinBase

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

Overrides:

computeMinHeight in class SkinBase<Separator>

Parameters:

width - The width of the Skin, in case this value might dictate the minimum height.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the minimum height of this Skin.

computePrefWidth

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

Description copied from class: SkinBase

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.

Overrides:

computePrefWidth in class SkinBase<Separator>

Parameters:

h - the height that should be used if preferred width depends on it

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

the calculated preferred width

computePrefHeight

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

Description copied from class: SkinBase

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.

Overrides:

computePrefHeight in class SkinBase<Separator>

Parameters:

w - the width that should be used if preferred height depends on it

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

the calculated preferred height

computeMaxWidth

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

Description copied from class: SkinBase

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

Overrides:

computeMaxWidth in class SkinBase<Separator>

Parameters:

h - The height of the Skin, in case this value might dictate the maximum width.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the maximum width of this Skin.

computeMaxHeight

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

Description copied from class: SkinBase

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

Overrides:

computeMaxHeight in class SkinBase<Separator>

Parameters:

w - The width of the Skin, in case this value might dictate the maximum height.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the maximum height of this Skin.