org.eclipse.swt.accessibility
Class AccessibleTextAdapter
java.lang.Object
org.eclipse.swt.accessibility.AccessibleTextAdapter
-
All Implemented Interfaces:
-
EventListener,
AccessibleTextListener, org.eclipse.swt.internal.SWTEventListener
-
public abstract class AccessibleTextAdapter
- extends
Object
- implements
AccessibleTextListener
This adapter class provides default implementations for the
methods described by the AccessibleTextListener
interface.
Classes that wish to deal with AccessibleTextEvent
s can
extend this class and override only the methods that they are
interested in.
Note: Accessibility clients use child identifiers to specify
whether they want information about a control or one of its children.
Child identifiers are increasing integers beginning with 0.
The identifier CHILDID_SELF represents the control itself.
When returning a child identifier to a client, you may use CHILDID_NONE
to indicate that no child or control has the required information.
Note: This adapter is typically used by implementors of
a custom control to provide very detailed information about
the control instance to accessibility clients.
-
Since:
- 3.0
-
See Also:
-
AccessibleTextListener
,
AccessibleTextEvent
,
Sample code and further information
Methods inherited from class java.lang.
Object
|
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
|
AccessibleTextAdapter
public AccessibleTextAdapter()
getCaretOffset
public void getCaretOffset(
AccessibleTextEvent e)
- Sent when an accessibility client requests the current character offset
of the text caret.
The default behavior is to do nothing.
Return the caret offset in the offset
field of the event object.
-
-
Specified by:
-
getCaretOffset
in interface
AccessibleTextListener
-
-
Parameters:
-
e
- an event object containing the following fields:
- childID [IN] - an identifier specifying a child of the control
- offset [OUT] - the current offset of the text caret
getSelectionRange
public void getSelectionRange(
AccessibleTextEvent e)
- Sent when an accessibility client requests the range of the current
text selection.
The default behavior is to do nothing.
Return the selection start offset and non-negative length in the
offset
and length
fields of the event object.
-
-
Specified by:
-
getSelectionRange
in interface
AccessibleTextListener
-
-
Parameters:
-
e
- an event object containing the following fields:
- childID [IN] - an identifier specifying a child of the control
- offset [OUT] - the offset of the current text selection
- length [OUT] - the length of the current text selection
Guidelines for using Eclipse APIs.
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