java.awt.event

Class TextEvent

Implemented Interfaces:
Serializable

public class TextEvent
extends AWTEvent

A semantic event which indicates that an object's text changed. This high-level event is generated by an object (such as a TextComponent) when its text changes. The event is passed to every TextListener object which registered to receive such events using the component's addTextListener method.

The object that implements the TextListener interface gets this TextEvent when the event occurs. The listener is spared the details of processing individual mouse movements and key strokes Instead, it can process a "meaningful" (semantic) event like "text changed".

Since:
1.1
See Also:
TextComponent, TextListener, Tutorial: Writing a Text Listener, Reference: The Java Class Libraries (update file), Serialized Form

Field Summary

static int
TEXT_FIRST
The first number in the range of ids used for text events.
static int
TEXT_LAST
The last number in the range of ids used for text events.
static int
TEXT_VALUE_CHANGED
This event id indicates that object's text changed.

Fields inherited from class java.awt.AWTEvent

ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK, consumed, id

Fields inherited from class java.util.EventObject

source

Constructor Summary

TextEvent(Object source, int id)
Constructs a TextEvent object.

Method Summary

String
paramString()
Returns a parameter string identifying this text event.

Methods inherited from class java.awt.AWTEvent

consume, getID, isConsumed, paramString, setSource, toString

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

TEXT_FIRST

public static final int TEXT_FIRST
The first number in the range of ids used for text events.
Field Value:
900

TEXT_LAST

public static final int TEXT_LAST
The last number in the range of ids used for text events.
Field Value:
900

TEXT_VALUE_CHANGED

public static final int TEXT_VALUE_CHANGED
This event id indicates that object's text changed.
Field Value:
900
Usages and Demos :

View More Examples of TextEvent.TEXT_VALUE_CHANGED
   1:   {
   2:     q.postEvent (new TextEvent (awtComponent, TextEvent.TEXT_VALUE_CHANGED));
   3:   }
   4: }

View Full Code Here
   1:   {
   2:     TextEvent e = new TextEvent(owner, TextEvent.TEXT_VALUE_CHANGED);
   3:     QtToolkit.eventQueue.postEvent(e);
   4:   }

View Full Code Here
   1:   {  
   2:     TextEvent e = new TextEvent(owner, TextEvent.TEXT_VALUE_CHANGED);
   3:     QtToolkit.eventQueue.postEvent(e);
   4:   }

View Full Code Here
   1:                 System.out.println("FileNameInput: pressed OK");
   2:                     TextEvent event = new TextEvent(textField, TextEvent.TEXT_VALUE_CHANGED);
   3:                     deliverEvent(event);
   4:                     setVisible(false);
   5:             } else

View Full Code Here
   1:                 System.out.println("FileNameInput: pressed OK");
   2:                     TextEvent event = new TextEvent(textField, TextEvent.TEXT_VALUE_CHANGED);
   3:                     deliverEvent(event);
   4:                     setVisible(false);
   5:             } else

View Full Code Here

Constructor Details

TextEvent

public TextEvent(Object source,
                 int id)
Constructs a TextEvent object.

Note that passing in an invalid id results in unspecified behavior. This method throws an IllegalArgumentException if source is null.

Parameters:
source - the (TextComponent) object that originated the event
id - an integer that identifies the event type
Throws:
IllegalArgumentException - if source is null
Usages and Demos :

View More Examples of TextEvent(Object source,int id)
   1:   {
   2:     q.postEvent (new TextEvent(awtComponent, TextEvent.TEXT_VALUE_CHANGED));
   3:   }
   4: }

View Full Code Here
   1:   {
   2:     TextEvent e = new TextEvent(owner, TextEvent.TEXT_VALUE_CHANGED);
   3:     QtToolkit.eventQueue.postEvent(e);
   4:   }

View Full Code Here
   1:   {  
   2:     TextEvent e = new TextEvent(owner, TextEvent.TEXT_VALUE_CHANGED);
   3:     QtToolkit.eventQueue.postEvent(e);
   4:   }

View Full Code Here
   1:                 System.out.println("FileNameInput: pressed OK");
   2:                     TextEvent event = new TextEvent(textField, TextEvent.TEXT_VALUE_CHANGED);
   3:                     deliverEvent(event);
   4:                     setVisible(false);
   5:             } else

View Full Code Here
   1:                 System.out.println("FileNameInput: pressed OK");
   2:                     TextEvent event = new TextEvent(textField, TextEvent.TEXT_VALUE_CHANGED);
   3:                     deliverEvent(event);
   4:                     setVisible(false);
   5:             } else

View Full Code Here

Method Details

paramString

public String paramString()
Returns a parameter string identifying this text event. This method is useful for event-logging and for debugging.
Overrides:
paramString in interface AWTEvent
Returns:
a string identifying the event and its attributes