org.netbeans.editor
Class BaseDocumentEvent

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      javax.swing.undo.CompoundEdit
          javax.swing.text.AbstractDocument.DefaultDocumentEvent
              org.netbeans.editor.BaseDocumentEvent

All Implemented Interfaces:

Serializable, DocumentEvent, UndoableEdit

Direct Known Subclasses:

GuardedDocumentEvent

public class BaseDocumentEvent
extends AbstractDocument.DefaultDocumentEvent

Document implementation

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface javax.swing.event.DocumentEvent

DocumentEvent.ElementChange, DocumentEvent.EventType

Field Summary

Fields inherited from class javax.swing.undo.CompoundEdit

edits

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

BaseDocumentEvent(BaseDocument doc, int offset, int length, DocumentEvent.EventType type)
Construct document event instance.

Method Summary

boolean	addEdit(UndoableEdit anEdit)
boolean	canMerge(BaseDocumentEvent evt) Returns true if this event can be merged by the previous one (given as parameter) in the undo-manager queue.
boolean	canRedo() Returns false if isInProgress or if super does.
boolean	canUndo()
void	die()
void	end()
protected UndoableEdit	findEdit(Class editClass)
DocumentEvent.ElementChange	getChange(Element elem)
AttributeSet	getChangeAttributes() Gets the attributes associated with the change that caused this event.
char[]	getChars() Deprecated.
int	getLFCount() Get the count of '\n' (line-feeds) contained in the inserted/removed text.
int	getLine() Deprecated.
String	getRedoPresentationName()
int	getSyntaxUpdateOffset() Get the offset at which the updating of the syntax stopped so there are no more changes in the tokens after this point.
String	getText() Get the text that was inserted/removed or null for change event.
String	getUndoPresentationName()
boolean	isInProgress()
boolean	isInRedo() Whether this event is being fired because it's being redone.
boolean	isInUndo() Whether this event is being fired because it's being undone.
void	redo()
boolean	replaceEdit(UndoableEdit anEdit) Try to determine whether this event can replace the old one.
String	toString()
void	undo()

Methods inherited from class javax.swing.text.AbstractDocument.DefaultDocumentEvent

getDocument, getLength, getOffset, getPresentationName, getType, isSignificant

Methods inherited from class javax.swing.undo.CompoundEdit

lastEdit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BaseDocumentEvent

public BaseDocumentEvent(BaseDocument doc,
                         int offset,
                         int length,
                         DocumentEvent.EventType type)

Construct document event instance.

Parameters:

offset - position in the document where the insert/remove/change occured

length - number of the characters affected by the event

type - type of the event - INSERT/REMOVE/CHANGE

Method Detail

getChangeAttributes

public final AttributeSet getChangeAttributes()

Gets the attributes associated with the change that caused this event. If no attributes were associated with the document change, this method may return null;

Returns:

The AttributeSet associated with the document change or null.

Since:

1.17

findEdit

protected UndoableEdit findEdit(Class editClass)

getChars

public char[] getChars()

Deprecated.

Gets the characters that were inserted/removed or null for change event. Characters must be used only in readonly mode as the character array is shared by all listeners and also by modification event itself.

getText

public String getText()

Get the text that was inserted/removed or null for change event.

getLine

public int getLine()

Deprecated.

Get the line at which the insert/remove occured.

getLFCount

public int getLFCount()

Get the count of '\n' (line-feeds) contained in the inserted/removed text.

getSyntaxUpdateOffset

public int getSyntaxUpdateOffset()

Get the offset at which the updating of the syntax stopped so there are no more changes in the tokens after this point.

isInUndo

public boolean isInUndo()

Whether this event is being fired because it's being undone.

isInRedo

public boolean isInRedo()

Whether this event is being fired because it's being redone.

undo

public void undo()
          throws CannotUndoException

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class AbstractDocument.DefaultDocumentEvent

Throws:

CannotUndoException

redo

public void redo()
          throws CannotRedoException

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class AbstractDocument.DefaultDocumentEvent

Throws:

CannotRedoException

addEdit

public boolean addEdit(UndoableEdit anEdit)

Specified by:

addEdit in interface UndoableEdit

Overrides:

addEdit in class AbstractDocument.DefaultDocumentEvent

canUndo

public boolean canUndo()

Specified by:

canUndo in interface UndoableEdit

Overrides:

canUndo in class CompoundEdit

canRedo

public boolean canRedo()

Returns false if isInProgress or if super does.

Specified by:

canRedo in interface UndoableEdit

Overrides:

canRedo in class CompoundEdit

See Also:

isInProgress()

isInProgress

public boolean isInProgress()

Overrides:

isInProgress in class CompoundEdit

getUndoPresentationName

public String getUndoPresentationName()

Specified by:

getUndoPresentationName in interface UndoableEdit

Overrides:

getUndoPresentationName in class AbstractDocument.DefaultDocumentEvent

getRedoPresentationName

public String getRedoPresentationName()

Specified by:

getRedoPresentationName in interface UndoableEdit

Overrides:

getRedoPresentationName in class AbstractDocument.DefaultDocumentEvent

canMerge

public boolean canMerge(BaseDocumentEvent evt)

Returns true if this event can be merged by the previous one (given as parameter) in the undo-manager queue.

replaceEdit

public boolean replaceEdit(UndoableEdit anEdit)

Try to determine whether this event can replace the old one. This is used to batch the one-letter modifications into larger parts (words) and undoing/redoing them at once. This method returns true whether

Specified by:

replaceEdit in interface UndoableEdit

Overrides:

replaceEdit in class AbstractUndoableEdit

die

public void die()

Specified by:

die in interface UndoableEdit

Overrides:

die in class CompoundEdit

end

public void end()

Overrides:

end in class CompoundEdit

getChange

public DocumentEvent.ElementChange getChange(Element elem)

Specified by:

getChange in interface DocumentEvent

Overrides:

getChange in class AbstractDocument.DefaultDocumentEvent

toString

public String toString()

Overrides:

toString in class AbstractDocument.DefaultDocumentEvent