javafx.scene.control.skin

Class SeparatorSkin

java.lang.Object

<any>

javafx.scene.control.skin.SeparatorSkin

public class SeparatorSkin
extends <any>

Default skin implementation for the Separator control.

Since:

9

See Also:

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.

Constructor Summary

Constructors

Constructor and Description
SeparatorSkin(Separator control) Creates a new SeparatorSkin instance, installing the necessary child nodes into the Control children list.

Method Summary

Modifier and Type	Method and Description
protected double	computeMaxHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset)
protected double	computeMaxWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset)
protected double	computeMinHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset)
protected double	computeMinWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)
protected double	computePrefHeight(double w, double topInset, double rightInset, double bottomInset, double leftInset)
protected double	computePrefWidth(double h, double topInset, double rightInset, double bottomInset, double leftInset)
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 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 control)

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

Parameters:

control - The control that this skin should be installed onto.

Method Detail

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.

computeMinWidth

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

computeMinHeight

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

computePrefWidth

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

computePrefHeight

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

computeMaxWidth

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

computeMaxHeight

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