diva.gui

Class AbstractView

java.lang.Object

diva.gui.AbstractView

All Implemented Interfaces:

View

Direct Known Subclasses:

ContextGraphView, GraphView, TextView, WhiteboardView

public abstract class AbstractView
extends Object
implements View

An abstract implementation of the View interface that consists of mostly empty methods to be filled in by concrete subclasses.

Version:

$Revision: 1.2 $

Author:

Michael Shilman (michaels@eecs.berkeley.edu)

Constructor Summary

Constructors

Constructor and Description
AbstractView(Document doc) Construct a view of the given document.

Method Summary

Modifier and Type	Method and Description
void	close() Close the view.
void	copy(Clipboard c) Get the currently selected objects from this view, if any, and place them on the given clipboard.
void	cut(Clipboard c) Remove the currently selected objects from this view, if any, and place them on the given clipboard.
abstract JComponent	getComponent() Return the component that implements the display of this view.
Document	getDocument() Get the document that this view is viewing.
abstract String	getShortTitle() Get the short title of this document.
abstract String	getTitle() Get the title of this document
void	paste(Clipboard c) Clone the objects currently on the clipboard, if any, and place them in the given view.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractView

public AbstractView(Document doc)

Construct a view of the given document.

Method Detail

close

public void close()
           throws Exception

Close the view.

Specified by:

close in interface View

Throws:

Exception - If the close operation fails.

copy

public void copy(Clipboard c)

Get the currently selected objects from this view, if any, and place them on the given clipboard. If the view does not support such an operation, then do nothing.

Specified by:

copy in interface View

cut

public void cut(Clipboard c)

Remove the currently selected objects from this view, if any, and place them on the given clipboard. If the view does not support such an operation, then do nothing.

Specified by:

cut in interface View

getComponent

public abstract JComponent getComponent()

Return the component that implements the display of this view. The returned object should be a unique object that corresponds to this view.

Specified by:

getComponent in interface View

getDocument

public Document getDocument()

Get the document that this view is viewing.

Specified by:

getDocument in interface View

getTitle

public abstract String getTitle()

Get the title of this document

Specified by:

getTitle in interface View

getShortTitle

public abstract String getShortTitle()

Get the short title of this document. The short title is used in situations where the regular title is likely to be too long, such as iconified windows, menus, and so on.

Specified by:

getShortTitle in interface View

paste

public void paste(Clipboard c)

Clone the objects currently on the clipboard, if any, and place them in the given view. If the document does not support such an operation, then do nothing. This method is responsible for copying the data.

Specified by:

paste in interface View