weka.gui.graphvisualizer

Class GraphVisualizer

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JPanel

weka.gui.graphvisualizer.GraphVisualizer

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, GraphConstants, LayoutCompleteEventListener

public class GraphVisualizer
extends javax.swing.JPanel
implements GraphConstants, LayoutCompleteEventListener

This class displays the graph we want to visualize. It should be sufficient to use only this class in weka.gui.graphvisulizer package to visualize a graph. The description of a graph should be provided as a string argument using readBIF or readDOT method in either XMLBIF03 or DOT format. Alternatively, an InputStream in XMLBIF03 can also be provided to another variation of readBIF. It would be necessary in case input is in DOT format to call the layoutGraph() method to display the graph correctly after the call to readDOT. It is also necessary to do so if readBIF is called and the graph description doesn't have x y positions for nodes.

The graph's data is held in two FastVectors, nodes are stored as objects of GraphNode class and edges as objects of GraphEdge class.

The graph is displayed by positioning and drawing each node according to its x y position and then drawing all the edges coming out of it give by its edges[][] array, the arrow heads are ofcourse marked in the opposite(ie original direction) or both directions if the edge is reversed or is in both directions. The graph is centered if it is smaller than it's display area. The edges are drawn from the bottom of the current node to the top of the node given by edges[][] array in GraphNode class, to avoid edges crossing over other nodes. This might need to be changed if another layout engine is added or the current Hierarchical engine is updated to avoid such crossings over nodes.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JPanel

javax.swing.JPanel.AccessibleJPanel

Nested classes/interfaces inherited from class javax.swing.JComponent

javax.swing.JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	graphID String containing graph's name
protected java.util.ArrayList<GraphEdge>	m_edges Vector containing edges
protected weka.gui.graphvisualizer.GraphVisualizer.GraphPanel	m_gp Panel actually displaying the graph
protected javax.swing.JButton	m_jBtSave Save button to save the current graph in DOT or XMLBIF format.
protected LayoutEngine	m_le The current LayoutEngine
protected java.util.ArrayList<GraphNode>	m_nodes Vector containing nodes

Fields inherited from class javax.swing.JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface weka.gui.graphvisualizer.GraphConstants

DIRECTED, DOUBLE, NORMAL, PLURAL_DUMMY, REVERSED, SINGULAR_DUMMY

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor and Description
GraphVisualizer() Constructor Sets up the gui and initializes all the other previously uninitialized variables.

Method Summary

Modifier and Type	Method and Description
void	layoutCompleted(LayoutCompleteEvent le) This method is an implementation for LayoutCompleteEventListener class.
void	layoutGraph() This method lays out the graph by calling the LayoutEngine's layoutGraph() method.
static void	main(java.lang.String[] args) Main method to load a text file with the description of a graph from the command line
void	readBIF(java.io.InputStream instream) BIF reader Reads a graph description in XMLBIF03 from an InputStrem
void	readBIF(java.lang.String instring) BIF reader Reads a graph description in XMLBIF03 from a string
void	readDOT(java.io.Reader input) Dot reader Reads a graph description in DOT format from a string
protected void	setAppropriateNodeSize() This method sets the node size that is appropriate considering the maximum label size that is present.
protected void	setAppropriateSize() Sets the preferred size for m_gp GraphPanel to the minimum size that is neccessary to display the graph.

Methods inherited from class javax.swing.JPanel

getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

m_nodes

protected java.util.ArrayList<GraphNode> m_nodes

Vector containing nodes

m_edges

protected java.util.ArrayList<GraphEdge> m_edges

Vector containing edges

m_le

protected LayoutEngine m_le

The current LayoutEngine

m_gp

protected weka.gui.graphvisualizer.GraphVisualizer.GraphPanel m_gp

Panel actually displaying the graph

graphID

protected java.lang.String graphID

String containing graph's name

m_jBtSave

protected javax.swing.JButton m_jBtSave

Save button to save the current graph in DOT or XMLBIF format. The graph should be layed out again to get the original form if reloaded from command line, as the formats do not allow saving specific information for a properly layed out graph.

Constructor Detail

GraphVisualizer

public GraphVisualizer()

Constructor
Sets up the gui and initializes all the other previously uninitialized variables.

Method Detail

setAppropriateNodeSize

protected void setAppropriateNodeSize()

This method sets the node size that is appropriate considering the maximum label size that is present. It is used internally when custom node size checkbox is unchecked.

setAppropriateSize

protected void setAppropriateSize()

Sets the preferred size for m_gp GraphPanel to the minimum size that is neccessary to display the graph.

layoutCompleted

public void layoutCompleted(LayoutCompleteEvent le)

This method is an implementation for LayoutCompleteEventListener class. It sets the size appropriate for m_gp GraphPanel and and revalidates it's container JScrollPane once a LayoutCompleteEvent is received from the LayoutEngine.

Specified by:

layoutCompleted in interface LayoutCompleteEventListener

layoutGraph

public void layoutGraph()

This method lays out the graph by calling the LayoutEngine's layoutGraph() method. This method should be called to display the graph nicely, unless the input XMLBIF03 already contains some layout information (ie the x,y positions of nodes.

readBIF

public void readBIF(java.lang.String instring)
             throws BIFFormatException

BIF reader
Reads a graph description in XMLBIF03 from a string

Throws:

BIFFormatException

readBIF

public void readBIF(java.io.InputStream instream)
             throws BIFFormatException

BIF reader
Reads a graph description in XMLBIF03 from an InputStrem

Throws:

BIFFormatException

readDOT

public void readDOT(java.io.Reader input)

Dot reader
Reads a graph description in DOT format from a string

main

public static void main(java.lang.String[] args)

Main method to load a text file with the description of a graph from the command line