# Class TextFieldSkin

java.lang.Object
javafx.scene.control.SkinBase<TextField>
javafx.scene.control.skin.TextInputControlSkin<TextField>
javafx.scene.control.skin.TextFieldSkin

All Implemented Interfaces:
  `Skin<TextField>`

public class TextFieldSkin extends TextInputControlSkin<TextField>
Default skin implementation for the `TextField` control.

Since:
  9
See Also:
  - `TextField`

- ## 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
  `TextFieldSkin(TextField control)`
  Creates a new TextFieldSkin 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.
  `void`
  `deleteChar(boolean previous)`
  Deletes the character that follows or precedes the current caret position from the text if there is no selection, or deletes the selection if there is one.
  `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.
  `void`
  `replaceText(int start, int end, String txt)`
  Replaces a range of characters with the given text.

  ### 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

  - ### TextFieldSkin

    public TextFieldSkin(TextField control)
    Creates a new TextFieldSkin 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

  - ### 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<TextField>`
    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

  - ### replaceText

    public void replaceText(int start, int end, String txt)
    Replaces a range of characters with the given text. Call this implementation from behavior classes instead of the one provided on TextInputControl to ensure that the text scrolls as needed.
    Parameters:
      `start` - The starting index in the range, inclusive. This must be >= 0 and < the end.
      `end` - The ending index in the range, exclusive. This is one-past the last character to delete (consistent with the String manipulation methods). This must be > the start, and <= the length of the text.
      `txt` - The text that is to replace the range. This must not be null.
    See Also:
      - `TextInputControl.replaceText(int, int, String)`

  - ### deleteChar

    public void deleteChar(boolean previous)
    Deletes the character that follows or precedes the current caret position from the text if there is no selection, or deletes the selection if there is one. Call this implementation from behavior classes instead of the one provided on TextInputControl to ensure that the text scrolls as needed.
    Parameters:
      `previous` - whether to delete the preceding character.

  - ### 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.

  - ### 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.

  - ### 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<TextField>`
    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<TextField>`
    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<TextField>`
    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<TextField>`
    Parameters:
      `nodes` - the list of nodes

  - ### 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<TextField>`
    Parameters:
      `unit` - the unit of text to move by.
      `dir` - the direction of movement.
      `select` - whether to extends the selection to the new position.