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javax.swing.plaf.basic
Class BasicTextAreaUI


java.lang.Object
  extended by javax.swing.plaf.ComponentUI
      extended by javax.swing.plaf.TextUI
          extended by javax.swing.plaf.basic.BasicTextUI
              extended by javax.swing.plaf.basic.BasicTextAreaUI
All Implemented Interfaces:
ViewFactory 
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
BasicTextAreaUI ()
          Constructs a new BasicTextAreaUI object.
 
Method Summary
  View create ( Element  elem)
          Creates the view for an element.
static  ComponentUI createUI ( JComponent  ta)
          Creates a UI for a JTextArea.
 int getBaseline ( JComponent
          Returns the baseline.
  Component.BaselineResizeBehavior getBaselineResizeBehavior ( JComponent
          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, e.g.
protected  void propertyChange ( PropertyChangeEvent  evt)
          This method gets called when a bound property is changed on the associated JTextComponent.
 
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, e.g. 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.BaselineResizeBehaviorgetBaselineResizeBehavior ( 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)