java.lang.Object
- javax.swing.plaf.ComponentUI
- - javax.swing.plaf.TextUI
  - - javax.swing.plaf.basic.BasicTextUI
    - - javax.swing.plaf.basic.BasicTextAreaUI

All Implemented Interfaces:

ViewFactory

Direct Known Subclasses:

SynthTextAreaUI
```
public class BasicTextAreaUI
extends BasicTextUI
```
Provides the look and feel for a plain text editor. In this implementation the default UI is extended to act as a simple view factory.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see XMLEncoder.

Nested Class Summary
- Nested classes/interfaces inherited from class javax.swing.plaf.basic.BasicTextUI
  BasicTextUI.BasicCaret, BasicTextUI.BasicHighlighter

Constructor Summary

Constructors
Constructor and Description

BasicTextAreaUI()
Constructs a new BasicTextAreaUI object.

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Method Summary

Methods
Modifier and Type	Method and Description
`View`	`create(Element elem)` Creates the view for an element.
`static ComponentUI`	`createUI(JComponent ta)` Creates a UI for a JTextArea.
`int`	`getBaseline(JComponent c, int width, int height)` Returns the baseline.
`Component.BaselineResizeBehavior`	`getBaselineResizeBehavior(JComponent c)` Returns an enum indicating how the baseline of the component changes as the size changes.
`Dimension`	`getMinimumSize(JComponent c)` The method is overridden to take into account caret width.
`Dimension`	`getPreferredSize(JComponent c)` The method is overridden to take into account caret width.
`protected String`	`getPropertyPrefix()` Fetches the name used as a key to look up properties through the UIManager.
`protected void`	`installDefaults()` Initializes component properties, such as font, foreground, background, caret color, selection color, selected text color, disabled text color, and border color.
`protected void`	`propertyChange(PropertyChangeEvent evt)` This method gets called when a bound property is changed on the associated JTextComponent.

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Methods inherited from class javax.swing.plaf.basic.BasicTextUI
create, createCaret, createHighlighter, createKeymap, damageRange, damageRange, getComponent, getEditorKit, getKeymapName, getMaximumSize, getNextVisualPositionFrom, getRootView, getToolTipText, getVisibleEditorRect, installKeyboardActions, installListeners, installUI, modelChanged, modelToView, modelToView, paint, paintBackground, paintSafely, setView, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI, update, viewToModel, viewToModel

Methods inherited from class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BasicTextAreaUI
```
public BasicTextAreaUI()
```
    Constructs a new BasicTextAreaUI object.
- Method Detail
  - createUI
```
public static ComponentUI createUI(JComponent ta)
```
    Creates a UI for a JTextArea.
    
    Parameters:
    ta - a text area
    
    Returns:
    the UI
  - getPropertyPrefix
```
protected String getPropertyPrefix()
```
    Fetches the name used as a key to look up properties through the UIManager. This is used as a prefix to all the standard text properties.
    
    Specified by:
    
    getPropertyPrefix in class BasicTextUI
    
    Returns:
    the name ("TextArea")
  - installDefaults
```
protected void installDefaults()
```
    Description copied from class: BasicTextUI
    
    Initializes component properties, such as font, foreground, background, caret color, selection color, selected text color, disabled text color, and border color. The font, foreground, and background properties are only set if their current value is either null or a UIResource, other properties are set if the current value is null.
    
    Overrides:
    
    installDefaults in class BasicTextUI
    
    See Also:
    BasicTextUI.uninstallDefaults(), BasicTextUI.installUI(javax.swing.JComponent)
  - propertyChange
```
protected void propertyChange(PropertyChangeEvent evt)
```
    This method gets called when a bound property is changed on the associated JTextComponent. This is a hook which UI implementations may change to reflect how the UI displays bound properties of JTextComponent subclasses. This is implemented to rebuild the View when the WrapLine or the WrapStyleWord property changes.
    
    Overrides:
    
    propertyChange in class BasicTextUI
    
    Parameters:
    evt - the property change event
  - getPreferredSize
```
public Dimension getPreferredSize(JComponent c)
```
    The method is overridden to take into account caret width.
    
    Overrides:
    
    getPreferredSize in class BasicTextUI
    
    Parameters:
    c - the editor component
    
    Returns:
    the preferred size
    
    Throws:
    
    IllegalArgumentException - if invalid value is passed
    Since:
    
    1.5
    
    See Also:
    JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)
  - getMinimumSize
```
public Dimension getMinimumSize(JComponent c)
```
    The method is overridden to take into account caret width.
    
    Overrides:
    
    getMinimumSize in class BasicTextUI
    
    Parameters:
    c - the editor component
    
    Returns:
    the minimum size
    
    Throws:
    
    IllegalArgumentException - if invalid value is passed
    Since:
    
    1.5
    
    See Also:
    JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)
  - create
```
public View create(Element elem)
```
    Creates the view for an element. Returns a WrappedPlainView or PlainView.
    
    Specified by:
    
    create in interface ViewFactory
    
    Overrides:
    
    create in class BasicTextUI
    
    Parameters:
    elem - the element
    
    Returns:
    the view
    See Also:
    View
  - getBaseline
```
public int getBaseline(JComponent c,
              int width,
              int height)
```
    Returns the baseline.
    
    Overrides:
    
    getBaseline in class ComponentUI
    
    Parameters:
    c - JComponent baseline is being requested for
    width - the width to get the baseline for
    height - the height to get the baseline for
    
    Returns:
    baseline or a value < 0 indicating there is no reasonable baseline
    
    Throws:
    
    NullPointerException - if c is null
    
    IllegalArgumentException - if width or height is < 0
    Since:
    
    1.6
    
    See Also:
    JComponent.getBaseline(int, int)
  - getBaselineResizeBehavior
```
public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c)
```
    Returns an enum indicating how the baseline of the component changes as the size changes.
    
    Overrides:
    
    getBaselineResizeBehavior in class ComponentUI
    
    Parameters:
    c - JComponent to return baseline resize behavior for
    
    Returns:
    an enum indicating how the baseline changes as the component size changes
    
    Throws:
    
    NullPointerException - if c is null
    Since:
    
    1.6
    
    See Also:
    JComponent.getBaseline(int, int)

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Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/swing/plaf/basic/basictextareaui.html

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Referenzen

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Inhaltsverzeichnis Haut

Class BasicTextAreaUI

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.plaf.basic.BasicTextUI

Constructor Summary

Method Summary

Methods inherited from class javax.swing.plaf.basic.BasicTextUI

Methods inherited from class javax.swing.plaf.ComponentUI

Methods inherited from class java.lang.Object

Constructor Detail

BasicTextAreaUI

Method Detail

createUI

getPropertyPrefix

installDefaults

propertyChange

getPreferredSize

getMinimumSize

create

getBaseline

getBaselineResizeBehavior

Referenzen