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Java Platform 1.2
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SUMMARY: INNER | FIELD | CONSTR | METHOD

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Class com.sun.java.swing.text.PlainDocument

java.lang.Object
  |
  +--com.sun.java.swing.text.AbstractDocument
        |
        +--com.sun.java.swing.text.PlainDocument

public class PlainDocument

extends AbstractDocument

A plain document that uses one font and color.

Warning: serialized objects of this class will not be compatible with future swing releases. The current serialization support is appropriate for short term storage or RMI between Swing1.0 applications. It will not be possible to load serialized Swing1.0 objects with future releases of Swing. The JDK1.2 release of Swing will be the compatibility baseline for the serialized form of Swing objects.

See Also:

Document, AbstractDocument, Serialized Form

Inner classes inherited from class com.sun.java.swing.text.AbstractDocument

AbstractDocument.AbstractElement , AbstractDocument.AttributeContext , AbstractDocument.BranchElement , AbstractDocument.Content , AbstractDocument.DefaultDocumentEvent , AbstractDocument.ElementEdit , AbstractDocument.LeafElement

Field Summary

static String	lineLimitAttribute Name of the attribute that specifies the maximum length of a line, if there is a maximum length.
static String	tabSizeAttribute Name of the attribute that specifies the tab size for tabs contained in the content.

Fields inherited from class com.sun.java.swing.text.AbstractDocument

BAD_LOCATION , BidiElementName , ContentElementName , ElementNameAttribute , listenerList , ParagraphElementName , SectionElementName

Constructor Summary

PlainDocument()
Constructs a plain text document.

PlainDocument(AbstractDocument.Content c)
Constructs a plain text document.

Method Summary

protected AbstractDocument.AbstractElement	createDefaultRoot() Creates the root element to be used to represent the default document structure.
Element	getDefaultRootElement() Gets the default root element for the document model.
Element	getParagraphElement(int pos) Get the paragraph element containing the given position.
protected void	insertUpdate(AbstractDocument.DefaultDocumentEvent chng, AttributeSet attr) Updates document structure as a result of text insertion.
protected void	removeUpdate(AbstractDocument.DefaultDocumentEvent chng) Updates any document structure as a result of text removal.

Methods inherited from class com.sun.java.swing.text.AbstractDocument

addDocumentListener , addUndoableEditListener , createBranchElement , createLeafElement , createPosition , dump , fireChangedUpdate , fireInsertUpdate , fireRemoveUpdate , fireUndoableEditUpdate , getAttributeContext , getBidiRootElement , getContent , getCurrentWriter , getDocumentProperties , getEndPosition , getLength , getProperty , getRootElements , getStartPosition , getText , getText , insertString , postRemoveUpdate , putProperty , readLock , readUnlock , remove , removeDocumentListener , removeUndoableEditListener , render , setDocumentProperties , writeLock , writeUnlock

Methods inherited from class java.lang.Object

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

Field Detail

tabSizeAttribute

public static final String tabSizeAttribute

Name of the attribute that specifies the tab size for tabs contained in the content. The type for the value is Integer.

lineLimitAttribute

public static final String lineLimitAttribute

Name of the attribute that specifies the maximum length of a line, if there is a maximum length. The type for the value is Integer.

Constructor Detail

PlainDocument

public PlainDocument()

Constructs a plain text document. A default model using StringContent is constructed and set.

PlainDocument

protected PlainDocument(AbstractDocument.Content c)

Constructs a plain text document. A default root element is created, and the tab size set to 8.

Parameters:

c - the container for the content

Method Detail

getDefaultRootElement

public Element getDefaultRootElement()

Gets the default root element for the document model.

Returns:

the root

Overrides:

getDefaultRootElement in class AbstractDocument

See Also:

Document.getDefaultRootElement()

createDefaultRoot

protected AbstractDocument.AbstractElement createDefaultRoot()

Creates the root element to be used to represent the default document structure.

Returns:

the element base

getParagraphElement

public Element getParagraphElement(int pos)

Get the paragraph element containing the given position. Since this document only models lines, it returns the line instead.

Overrides:

getParagraphElement in class AbstractDocument

insertUpdate

protected void insertUpdate(AbstractDocument.DefaultDocumentEvent chng,
                            AttributeSet attr)

Updates document structure as a result of text insertion. This will happen within a write lock. Since this document simply maps out lines, we refresh the line map.

Parameters:

chng - the change event describing the dit

attr - the set of attributes for the inserted text

Overrides:

insertUpdate in class AbstractDocument

removeUpdate

protected void removeUpdate(AbstractDocument.DefaultDocumentEvent chng)

Updates any document structure as a result of text removal. This will happen within a write lock. Since the structure represents a line map, this just checks to see if the removal spans lines. If it does, the two lines outside of the removal area are joined together.

Parameters:

chng - the change event describing the edit

Overrides:

removeUpdate in class AbstractDocument