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Class java.awt.TextComponent

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.TextComponent

public class TextComponent

extends Component

textListener

addTextListener(TextListener)

Adds the specified text event listener to recieve text events from this textcomponent.

getCaretPosition()

Returns the position of the text insertion caret for the text component.

getSelectedText()

Returns the selected text contained in this TextComponent.

getSelectionEnd()

Returns the selected text's end position.

getSelectionStart()

Returns the selected text's start position.

getText()

Returns the text contained in this TextComponent.

isEditable()

Returns the boolean indicating whether this TextComponent is editable or not.

paramString()

Returns the String of parameters for this TextComponent.

processEvent(AWTEvent)

Processes events on this textcomponent.

processTextEvent(TextEvent)

Processes text events occurring on this text component by dispatching them to any registered TextListener objects.

removeNotify()

Removes the TextComponent's peer.

removeTextListener(TextListener)

Removes the specified text event listener so that it no longer receives text events from this textcomponent

select(int, int)

Selects the text found between the specified start and end locations.

selectAll()

Selects all the text in the TextComponent.

setCaretPosition(int)

Sets the position of the text insertion caret for the TextComponent

setEditable(boolean)

Sets the specified boolean to indicate whether or not this TextComponent should be editable.

setSelectionEnd(int)

Sets the selection end to the specified position.

setSelectionStart(int)

Sets the selection start to the specified position.

setText(String)

Sets the text of this TextComponent to the specified text.

 protected transient TextListener textListener

 public void removeNotify()

Removes the TextComponent's peer. The peer allows us to modify the appearance of the TextComponent without changing its functionality.

Overrides:

removeNotify in class Component

 public synchronized void setText(String t)

Sets the text of this TextComponent to the specified text.

Parameters:

t - the new text to be set

See Also:

getText

 public synchronized String getText()

Returns the text contained in this TextComponent.

See Also:

setText

 public synchronized String getSelectedText()

Returns the selected text contained in this TextComponent.

See Also:

setText

 public boolean isEditable()

Returns the boolean indicating whether this TextComponent is editable or not.

See Also:

setEditable

 public synchronized void setEditable(boolean b)

Sets the specified boolean to indicate whether or not this TextComponent should be editable.

Parameters:

b - the boolean to be set

See Also:

isEditable

 public synchronized int getSelectionStart()

Returns the selected text's start position.

 public synchronized void setSelectionStart(int selectionStart)

Sets the selection start to the specified position. The new starting point is constrained to be before or at the current selection end.

Parameters:

selectionStart - the start position of the text

 public synchronized int getSelectionEnd()

Returns the selected text's end position.

 public synchronized void setSelectionEnd(int selectionEnd)

Sets the selection end to the specified position. The new end point is constrained to be at or after the current selection start.

Parameters:

selectionEnd - the start position of the text

 public synchronized void select(int selectionStart,
                                 int selectionEnd)

Selects the text found between the specified start and end locations.

Parameters:

selectionStart - the start position of the text

selectionEnd - the end position of the text

 public synchronized void selectAll()

Selects all the text in the TextComponent.

 public void setCaretPosition(int position)

Sets the position of the text insertion caret for the TextComponent

Parameters:

position - the position

Throws: IllegalArgumentException

If position is less than 0.

 public int getCaretPosition()

Returns the position of the text insertion caret for the text component.

Returns:

the position of the text insertion caret for the text component.

 public synchronized void addTextListener(TextListener l)

Adds the specified text event listener to recieve text events from this textcomponent.

Parameters:

l - the text event listener

 public void removeTextListener(TextListener l)

Removes the specified text event listener so that it no longer receives text events from this textcomponent

 protected void processEvent(AWTEvent e)

Processes events on this textcomponent. If the event is a TextEvent, it invokes the processTextEvent method, else it invokes its superclass's processEvent.

Parameters:

e - the event

Overrides:

processEvent in class Component

 protected void processTextEvent(TextEvent e)

Processes text events occurring on this text component by dispatching them to any registered TextListener objects. NOTE: This method will not be called unless text events are enabled for this component; this happens when one of the following occurs: a) A TextListener object is registered via addTextListener() b) Text events are enabled via enableEvents()

Parameters:

e - the text event

See Also:

enableEvents

 protected String paramString()

Returns the String of parameters for this TextComponent.

Overrides:

paramString in class Component

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