java.awt
Class TextComponent

java.lang.Object   
  java.awt.Component   
      java.awt.TextComponent

All Implemented Interfaces:

ImageObserver , MenuContainer , Serializable , Accessible

Direct Known Subclasses:

TextArea , TextField

public class TextComponent
extends Component   
implements Accessible   

The TextComponent class is the superclass of any component that allows the editing of some text.

A text component embodies a string of text. The TextComponent class defines a set of methods that determine whether or not this text is editable. If the component is editable, it defines another set of methods that supports a text insertion caret.

In addition, the class defines methods that are used to maintain a current selection from the text. The text selection, a substring of the component's text, is the target of editing operations. It is also referred to as the selected text.

Since:

JDK1.0

See Also:

Serialized Form

Nested Class Summary

protected class

TextComponent.AccessibleAWTTextComponent This class implements accessibility support for the TextComponent class.

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent , Component.BltBufferStrategy , Component.FlipBufferStrategy

Field Summary

protected TextListener

textListener

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT , CENTER_ALIGNMENT , LEFT_ALIGNMENT , RIGHT_ALIGNMENT , TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT , ALLBITS , ERROR , FRAMEBITS , HEIGHT , PROPERTIES , SOMEBITS , WIDTH

Method Summary

void	addNotify () Makes this Component displayable by connecting it to a native screen resource.
void	addTextListener (TextListener l) Adds the specified text event listener to receive text events from this text component.
void	enableInputMethods (boolean enable) Enables or disables input method support for this component.
AccessibleContext	getAccessibleContext () Gets the AccessibleContext associated with this TextComponent.
Color	getBackground () Gets the background color of this text component.
int	getCaretPosition () Returns the position of the text insertion caret.
InputMethodRequests	getInputMethodRequests () Gets the input method request handler which supports requests from input methods for this component.
<T extends EventListener > T[]	getListeners (Class <T> listenerType) Returns an array of all the objects currently registered as FooListeners upon this TextComponent.
String	getSelectedText () Returns the selected text from the text that is presented by this text component.
int	getSelectionEnd () Gets the end position of the selected text in this text component.
int	getSelectionStart () Gets the start position of the selected text in this text component.
String	getText () Returns the text that is presented by this text component.
TextListener []	getTextListeners () Returns an array of all the text listeners registered on this text component.
boolean	isEditable () Indicates whether or not this text component is editable.
protected String	paramString () Returns a string representing the state of this TextComponent.
protected void	processEvent (AWTEvent e) Processes events on this text component.
protected void	processTextEvent (TextEvent e) Processes text events occurring on this text component by dispatching them to any registered TextListener objects.
void	removeNotify () Removes the TextComponent's peer.
void	removeTextListener (TextListener l) Removes the specified text event listener so that it no longer receives text events from this text component If l is null, no exception is thrown and no action is performed.
void	select (int selectionStart, int selectionEnd) Selects the text between the specified start and end positions.
void	selectAll () Selects all the text in this text component.
void	setBackground (Color c) Sets the background color of this text component.
void	setCaretPosition (int position) Sets the position of the text insertion caret.
void	setEditable (boolean b) Sets the flag that determines whether or not this text component is editable.
void	setSelectionEnd (int selectionEnd) Sets the selection end for this text component to the specified position.
void	setSelectionStart (int selectionStart) Sets the selection start for this text component to the specified position.
void	setText (String t) Sets the text that is presented by this text component to be the specified text.

Methods inherited from class java.awt.Component

action , add , addComponentListener , addFocusListener , addHierarchyBoundsListener , addHierarchyListener , addInputMethodListener , addKeyListener , addMouseListener , addMouseMotionListener , addMouseWheelListener , addPropertyChangeListener , addPropertyChangeListener , applyComponentOrientation , areFocusTraversalKeysSet , bounds , checkImage , checkImage , coalesceEvents , contains , contains , createImage , createImage , createVolatileImage , createVolatileImage , deliverEvent , disable , disableEvents , dispatchEvent , doLayout , enable , enable , enableEvents , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , firePropertyChange , getAlignmentX , getAlignmentY , getBounds , getBounds , getColorModel , getComponentAt , getComponentAt , getComponentListeners , getComponentOrientation , getCursor , getDropTarget , getFocusCycleRootAncestor , getFocusListeners , getFocusTraversalKeys , getFocusTraversalKeysEnabled , getFont , getFontMetrics , getForeground , getGraphics , getGraphicsConfiguration , getHeight , getHierarchyBoundsListeners , getHierarchyListeners , getIgnoreRepaint , getInputContext , getInputMethodListeners , getKeyListeners , getLocale , getLocation , getLocation , getLocationOnScreen , getMaximumSize , getMinimumSize , getMouseListeners , getMouseMotionListeners , getMousePosition , getMouseWheelListeners , getName , getParent , getPeer , getPreferredSize , getPropertyChangeListeners , getPropertyChangeListeners , getSize , getSize , getToolkit