eTextReader
Class Diagram

java.lang.Object
  eTextReader.Diagram

All Implemented Interfaces:

java.util.EventListener, javax.swing.event.ChangeListener

public class Diagram
extends java.lang.Object
implements javax.swing.event.ChangeListener

Field Summary

private java.lang.String	addend
private java.lang.String	addstart
private int	b
private javax.swing.JSlider	bluefield
private java.awt.Canvas	canvas
private DBClient	client
private ContentPane	content
private int	currentmode
private java.awt.event.ActionListener	diagramlistener
private javax.swing.JButton	draw
private boolean	editableDiagram
static int	ERASE
private javax.swing.JButton	eraser
private javax.swing.JFrame	f
private int	g
private javax.swing.JSlider	greenfield
private java.awt.Image	image
private java.io.OutputStream	imagestream
private java.awt.event.ActionListener	loglistener
private int	nid
static int	NORMAL
private Notation	notationdiagram
private java.util.Vector	pdata
private java.util.Vector	plots
private int	r
private javax.swing.JButton	rainbow
static int	RAINBOW
private javax.swing.JSlider	redfield
private int	size
private javax.swing.JSlider	sizeslider
private javax.swing.JTextField	titlefield
private java.lang.String	url
private java.lang.String	user
private java.lang.String	viewmode
private int	x1
private int	y1

Constructor Summary

Diagram(ContentPane content, java.awt.event.ActionListener loglistener, java.awt.event.ActionListener diagramlistener)
Constructs a new JFrame object used to display Diagrams.

Diagram(ContentPane content, java.awt.event.ActionListener loglistener, boolean editableDiagram)

Method Summary

void	createDiagram(Notation info, java.lang.String userName) A method that brings up the GUI for diagram creation and stores the current canvas to the database.
void	dispose() Disposes of the current diagram
java.lang.String	getAddEnd() Returns the address end of the current Diagram Notation.
java.lang.String	getAddStart() Returns the address start of the current Diagram Notation.
java.awt.Canvas	getCanvas() Returns an Canvas of the current diagram display.
int	getID() Returns the ID of the last diagram created by this object
java.awt.Dimension	getSize() Returns the size of the current Diagram by getting the Dimension of its JFrame.
java.lang.String	getTitle() Returns the title of the current diagram display.
java.lang.String	getViewmode() return the viewing mode of this diagram
private void	loadDiagram(Notation n) loads the current diagram from the database, and returns an java.awt.Image object representing the current version of the digram
void	stateChanged(javax.swing.event.ChangeEvent e) Inherited from ChangeListener.

Methods inherited from class java.lang.Object

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

Field Detail

x1

private int x1

y1

private int y1

r

private int r

g

private int g

b

private int b

size

private int size

currentmode

private int currentmode

nid

private int nid

plots

private java.util.Vector plots

pdata

private java.util.Vector pdata

client

private DBClient client

canvas

private java.awt.Canvas canvas

imagestream

private java.io.OutputStream imagestream

user

private java.lang.String user

url

private java.lang.String url

addstart

private java.lang.String addstart

addend

private java.lang.String addend

viewmode

private java.lang.String viewmode

titlefield

private javax.swing.JTextField titlefield

sizeslider

private javax.swing.JSlider sizeslider

redfield

private javax.swing.JSlider redfield

greenfield

private javax.swing.JSlider greenfield

bluefield

private javax.swing.JSlider bluefield

draw

private javax.swing.JButton draw

eraser

private javax.swing.JButton eraser

rainbow

private javax.swing.JButton rainbow

f

private javax.swing.JFrame f

image

private java.awt.Image image

notationdiagram

private Notation notationdiagram

content

private ContentPane content

editableDiagram

private boolean editableDiagram

loglistener

private java.awt.event.ActionListener loglistener

diagramlistener

private java.awt.event.ActionListener diagramlistener

NORMAL

public static int NORMAL

RAINBOW

public static int RAINBOW

ERASE

public static int ERASE

Constructor Detail

Diagram

public Diagram(ContentPane content,
               java.awt.event.ActionListener loglistener,
               java.awt.event.ActionListener diagramlistener)

Constructs a new JFrame object used to display Diagrams.

Diagram

public Diagram(ContentPane content,
               java.awt.event.ActionListener loglistener,
               boolean editableDiagram)

Method Detail

createDiagram

public void createDiagram(Notation info,
                          java.lang.String userName)

A method that brings up the GUI for diagram creation and stores the current canvas to the database.

Parameters:

duser - The username of the Diagram author

durl - The url of the currently displayed page

daddstart - The start of the diagram notation in the eText page

daddend - The end of the diagram notation in the eText page

stateChanged

public void stateChanged(javax.swing.event.ChangeEvent e)

Inherited from ChangeListener. Updates the color of the draw button to reflect the user's current color choice.

Specified by:

stateChanged in interface javax.swing.event.ChangeListener

Parameters:

e - The change event fired by the sliders

loadDiagram

private void loadDiagram(Notation n)

loads the current diagram from the database, and returns an java.awt.Image object representing the current version of the digram

getID

public int getID()

Returns the ID of the last diagram created by this object

Returns:

the ID of the last diagram created by this object

getCanvas

public java.awt.Canvas getCanvas()

Returns an Canvas of the current diagram display.

Returns:

a Canvas of the current diagram display

getAddStart

public java.lang.String getAddStart()

Returns the address start of the current Diagram Notation.

Returns:

the start of the current Diagram Notation.

getAddEnd

public java.lang.String getAddEnd()

Returns the address end of the current Diagram Notation.

Returns:

the end of the current Diagram Notation.

getTitle

public java.lang.String getTitle()

Returns the title of the current diagram display.

Returns:

the title of the current diagram.

getViewmode

public java.lang.String getViewmode()

return the viewing mode of this diagram

Returns:

a string representing the viewmode for this diagram

getSize

public java.awt.Dimension getSize()

Returns the size of the current Diagram by getting the Dimension of its JFrame.

Returns:

the dimensions of the current diagram.

dispose

public void dispose()

Disposes of the current diagram