Class GraphVisualizer
- java.lang.Object
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- java.awt.Component
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- java.awt.Container
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- javax.swing.JComponent
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- javax.swing.JPanel
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- weka.gui.graphvisualizer.GraphVisualizer
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- 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.
- Version:
- $Revision: 7899 $
- Author:
- Ashraf M. Kibriya (amk14@cs.waikato.ac.nz)
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class javax.swing.JComponent
TOOL_TIP_TEXT_KEY, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
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Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
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Fields inherited from interface weka.gui.graphvisualizer.GraphConstants
DIRECTED, DOUBLE, NORMAL, PLURAL_DUMMY, REVERSED, SINGULAR_DUMMY
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Constructor Summary
Constructors Constructor Description GraphVisualizer()
Constructor
Sets up the gui and initializes all the other previously uninitialized variables.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method 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 linevoid
readBIF(java.io.InputStream instream)
BIF reader
Reads a graph description in XMLBIF03 from an InputStremvoid
readBIF(java.lang.String instring)
BIF reader
Reads a graph description in XMLBIF03 from a stringvoid
readDOT(java.io.Reader input)
Dot reader
Reads a graph description in DOT format from a string-
Methods inherited from class javax.swing.JPanel
getAccessibleContext, getUI, getUIClassID, setUI, updateUI
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Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, 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, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintImmediately, paintImmediately, print, printAll, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, 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, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
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Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, 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, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate
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Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, contains, createImage, createImage, createVolatileImage, createVolatileImage, dispatchEvent, enable, enableInputMethods, 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, 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, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
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Method Detail
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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 interfaceLayoutCompleteEventListener
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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.
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readBIF
public void readBIF(java.lang.String instring) throws BIFFormatException
BIF reader
Reads a graph description in XMLBIF03 from a string- Throws:
BIFFormatException
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readBIF
public void readBIF(java.io.InputStream instream) throws BIFFormatException
BIF reader
Reads a graph description in XMLBIF03 from an InputStrem- Throws:
BIFFormatException
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readDOT
public void readDOT(java.io.Reader input)
Dot reader
Reads a graph description in DOT format from a string
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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
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