diva.gui
Class MultipageDocument

java.lang.Object
  diva.gui.AbstractDocument
      diva.gui.MultipageDocument

All Implemented Interfaces:

Document

public abstract class MultipageDocument
extends AbstractDocument

A document that contains a linear sequence of Pages. This class is useful for documents which their data into logical pages. Generally this class is most useful for partitioned documents where all the partitions are stored together. For partitions that are stored separately, it is probably easiest to just use separate documents. Note that a page can contain any kind of data, and the interpretation and graphical representation of a list of page is up to the concrete document class and the corresponding application. Other than containing a sequence of pages, this class is used the same as AbstractDocument and provides the same abstract methods.

Version:

$Id: MultipageDocument.java 57046 2010-01-27 23:35:53Z cxh $

Author:

John Reekie

Field Summary

private MultipageModel	_model The support object for pages.
(package private) ModelParser	_modelParser This parser is used by the document parser to read in each model in a page.
(package private) ModelWriter	_modelWriter This writer is used by the document writer to write out each model in a page.
(package private) MultipageParser	_parser The parser that reads in a document and parses it into a Document structure.
(package private) java.lang.String	_title The title associated with this document.
(package private) MultipageWriter	_writer The writer that can write this document to a stream during a save operation.

Constructor Summary

MultipageDocument(java.lang.String title, Application a, ModelParser parser, ModelWriter writer)
Construct a multipage document that is owned by the given application

Method Summary

void	close() Close the document.
MultipageModel	getMultipageModel() Return the model associated with this document.
java.lang.String	getTitle() Return the title of this document.
void	open() Open the document from its current file.
void	save() Save the document to the current file.
void	saveAs(java.io.File file) Save the document to the given file.
void	saveAs(java.net.URL url) Throw an exception, as save to URLs is not supported.

Methods inherited from class diva.gui.AbstractDocument

addPropertyChangeListener, getApplication, getEditSupport, getFile, getShortTitle, getUndoManager, getURL, isDirty, isEditable, isWritable, removePropertyChangeListener, setDirty, setEditable, setFile, setURL, setWritable

Methods inherited from class java.lang.Object

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

Field Detail

_model

private MultipageModel _model

The support object for pages.

_writer

MultipageWriter _writer

The writer that can write this document to a stream during a save operation.

_parser

MultipageParser _parser

The parser that reads in a document and parses it into a Document structure. In this case, it reads a sketch document and outputs a SketchDocument object.

_modelWriter

ModelWriter _modelWriter

This writer is used by the document writer to write out each model in a page.

_modelParser

ModelParser _modelParser

This parser is used by the document parser to read in each model in a page.

_title

java.lang.String _title

The title associated with this document.

Constructor Detail

MultipageDocument

public MultipageDocument(java.lang.String title,
                         Application a,
                         ModelParser parser,
                         ModelWriter writer)

Construct a multipage document that is owned by the given application

Method Detail

close

public void close()
           throws java.lang.Exception

Close the document. This method doesn't do anything, as graph data doesn't change.

Specified by:

close in interface Document

Overrides:

close in class AbstractDocument

Throws:

java.lang.Exception - If the close operation fails.

getTitle

public java.lang.String getTitle()

Return the title of this document.

Specified by:

getTitle in interface Document

Overrides:

getTitle in class AbstractDocument

Returns:

The title.

getMultipageModel

public MultipageModel getMultipageModel()

Return the model associated with this document.

open

public void open()
          throws java.lang.Exception

Open the document from its current file. If successful, add a new Page to the document containing the model parsed from the current file.

Specified by:

open in interface Document

Specified by:

open in class AbstractDocument

Throws:

java.lang.Exception - If there is no file, or if the I/O operation failed.

save

public void save()
          throws java.lang.Exception

Save the document to the current file.

Specified by:

save in interface Document

Specified by:

save in class AbstractDocument

Throws:

java.lang.Exception - If there is no file, or if the I/O operation failed.

saveAs

public void saveAs(java.io.File file)
            throws java.lang.Exception

Save the document to the given file. Do not change the file attribute to the new File object.

Specified by:

saveAs in interface Document

Specified by:

saveAs in class AbstractDocument

Throws:

java.lang.Exception - If the I/O operation failed.

See Also:

AbstractDocument.save()

saveAs

public void saveAs(java.net.URL url)

Throw an exception, as save to URLs is not supported.

Specified by:

saveAs in interface Document

Specified by:

saveAs in class AbstractDocument

Throws:

java.lang.Exception - Always

See Also:

AbstractDocument.save()