TextAreaSkin (JavaFX 28)
Description: declaration: module: javafx.controls, package: javafx.scene.control.skin, class: TextAreaSkin

# Class TextAreaSkin

java.lang.Object
javafx.scene.control.SkinBase<TextArea>
javafx.scene.control.skin.TextInputControlSkin<TextArea>
javafx.scene.control.skin.TextAreaSkin

All Implemented Interfaces:
  `Skin<TextArea>`

public class TextAreaSkin extends TextInputControlSkin<TextArea>
Default skin implementation for the `TextArea` control.

Since:
  9
See Also:
  - `TextArea`

- ## Nested Class Summary

  ### Nested classes/interfaces declared in class TextInputControlSkin

  `TextInputControlSkin.Direction, TextInputControlSkin.TextUnit`

- ## Property Summary

  ### Properties declared in class TextInputControlSkin

  `forwardBias, highlightFill, highlightTextFill, promptTextFill, textFill`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `TextAreaSkin(TextArea control)`
  Creates a new TextAreaSkin instance, installing the necessary child nodes into the Control `children` list, as well as the necessary input mappings for handling key, mouse, etc events.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `protected void`
  `addHighlight(List<? extends Node> nodes, int start)`
  Adds highlight for composed text from Input Method.
  `double`
  `computeBaselineOffset(double topInset, double rightInset, double bottomInset, double leftInset)`
  Calculates the baseline offset based on the first managed child.
  `Bounds`
  `getCaretBounds()`
  Gets the `Bounds` of the caret of the skinned `TextArea`.
  `HitInfo`
  `getIndex(double x, double y)`
  Performs a hit test, mapping point to index in the content.
  `protected PathElement[]`
  `getRangeShape(int start, int end)`
  Gets the path elements describing the bounding rectangles for the given range of text.
  `protected PathElement[]`
  `getUnderlineShape(int start, int end)`
  Gets the path elements describing the shape of the underline for the given range.
  `void`
  `moveCaret(TextInputControlSkin.TextUnit unit, TextInputControlSkin.Direction dir, boolean select)`
  Moves the caret by one of the given text unit, in the given direction.
  `void`
  `positionCaret(HitInfo hit, boolean select)`
  Moves the caret to the specified position.
  `protected void`
  `removeHighlight(List<? extends Node> nodes)`
  Removes highlight for composed text from Input Method.

  ### Methods declared in class TextInputControlSkin

  `forwardBiasProperty, getCharacterBounds, getClassCssMetaData, getHighlightFill, getHighlightTextFill, getInsertionPoint, getMenuPosition, getPromptTextFill, getTextFill, handleInputMethodEvent, highlightFillProperty, highlightTextFillProperty, invalidateMetrics, isForwardBias, maskText, promptTextFillProperty, scrollCharacterToVisible, setCaretAnimating, setForwardBias, setHighlightFill, setHighlightTextFill, setPromptTextFill, setTextFill, textFillProperty, updateHighlightFill, updateHighlightTextFill, updateTextFill`

  ### Methods declared in class SkinBase

  `computeMaxHeight, computeMaxWidth, computeMinHeight, computeMinWidth, computePrefHeight, computePrefWidth, consumeMouseEvents, dispose, executeAccessibleAction, getChildren, getCssMetaData, getNode, getSkinnable, layoutChildren, layoutInArea, layoutInArea, layoutInArea, positionInArea, positionInArea, pseudoClassStateChanged, queryAccessibleAttribute, registerChangeListener, registerInvalidationListener, registerListChangeListener, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapPositionX, snapPositionY, snapSize, snapSizeX, snapSizeY, snapSpace, snapSpaceX, snapSpaceY, unregisterChangeListeners, unregisterInvalidationListeners, unregisterListChangeListeners`

  ### Methods declared in class Object

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

  ### Methods declared in interface Skin

  `install`

- ## Constructor Details

  - ### TextAreaSkin

    public TextAreaSkin(TextArea control)
    Creates a new TextAreaSkin instance, installing the necessary child nodes into the Control `children` list, as well as the necessary input mappings for handling key, mouse, etc events.
    Parameters:
      `control` - The control that this skin should be installed onto.

- ## Method Details

  - ### getIndex

    public HitInfo getIndex(double x, double y)
    Performs a hit test, mapping point to index in the content.
    Parameters:
      `x` - the x coordinate of the point.
      `y` - the y coordinate of the point.
    Returns:
      a `HitInfo` object describing the index and forward bias.

  - ### moveCaret

    public void moveCaret(TextInputControlSkin.TextUnit unit, TextInputControlSkin.Direction dir, boolean select)
    Moves the caret by one of the given text unit, in the given direction. Note that only certain combinations are valid, depending on the implementing subclass.
    Specified by:
      `moveCaret` in class `TextInputControlSkin<TextArea>`
    Parameters:
      `unit` - the unit of text to move by.
      `dir` - the direction of movement.
      `select` - whether to extends the selection to the new position.

  - ### getUnderlineShape

    protected PathElement[] getUnderlineShape(int start, int end)
    Gets the path elements describing the shape of the underline for the given range.
    Specified by:
      `getUnderlineShape` in class `TextInputControlSkin<TextArea>`
    Parameters:
      `start` - the start
      `end` - the end
    Returns:
      the path elements describing the shape of the underline for the given range

  - ### getRangeShape

    protected PathElement[] getRangeShape(int start, int end)
    Gets the path elements describing the bounding rectangles for the given range of text.
    Specified by:
      `getRangeShape` in class `TextInputControlSkin<TextArea>`
    Parameters:
      `start` - the start
      `end` - the end
    Returns:
      the path elements describing the bounding rectangles for the given range of text

  - ### addHighlight

    protected void addHighlight(List<? extends Node> nodes, int start)
    Adds highlight for composed text from Input Method.
    Specified by:
      `addHighlight` in class `TextInputControlSkin<TextArea>`
    Parameters:
      `nodes` - the list of nodes
      `start` - the start

  - ### removeHighlight

    protected void removeHighlight(List<? extends Node> nodes)
    Removes highlight for composed text from Input Method.
    Specified by:
      `removeHighlight` in class `TextInputControlSkin<TextArea>`
    Parameters:
      `nodes` - the list of nodes

  - ### getCaretBounds

    public Bounds getCaretBounds()
    Gets the `Bounds` of the caret of the skinned `TextArea`.
    Returns:
      the `Bounds` of the caret shape, relative to the `TextArea`.

  - ### computeBaselineOffset

    public double computeBaselineOffset(double topInset, double rightInset, double bottomInset, double leftInset)
    Calculates the baseline offset based on the first managed child. If there is no such child, returns `Node.getBaselineOffset()`.
    Overrides:
      `computeBaselineOffset` in class `SkinBase<TextArea>`
    Parameters:
      `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:
      baseline offset

  - ### positionCaret

    public void positionCaret(HitInfo hit, boolean select)
    Moves the caret to the specified position.
    Parameters:
      `hit` - the new position and forward bias of the caret.
      `select` - whether to extend selection to the new position.