weka.gui
Class SetInstancesPanel

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JPanel
                  weka.gui.SetInstancesPanel

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible

public class SetInstancesPanel
extends JPanel

A panel that displays an instance summary for a set of instances and lets the user open a set of instances from either a file or URL. Instances may be obtained either in a batch or incremental fashion. If incremental reading is used, then the client should obtain the Loader object (by calling getLoader()) and read the instances one at a time. If batch loading is used, then SetInstancesPanel will load the data into memory inside of a separate thread and notify the client when the operation is complete. The client can then retrieve the instances by calling getInstances().

Version:

$Revision: 8034 $

Author:

Len Trigg (trigg@cs.waikato.ac.nz)

See Also:

Serialized Form

Nested Class Summary

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

JComponent.AccessibleJComponent

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

Component.BaselineResizeBehavior

Field Summary

static String

NO_CLASS the text denoting "no class" in the class combobox.

Fields inherited from class javax.swing.JComponent

TOOL_TIP_TEXT_KEY, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

SetInstancesPanel()
Default constructor.

SetInstancesPanel(boolean showZeroInstancesAsUnknown, boolean showClassComboBox)
Create the panel.

Method Summary

void	addPropertyChangeListener(PropertyChangeListener l) Adds a PropertyChangeListener who will be notified of value changes.
void	closeFrame() closes the frame, i.e., the visibility is set to false.
int	getClassIndex() Returns the currently selected class index.
Instances	getInstances() Gets the set of instances currently held by the panel.
Loader	getLoader() Gets the currently used Loader.
JFrame	getParentFrame() Returns the current frame the panel knows of, that it resides in.
boolean	getReadIncrementally() Gets whether instances are to be read incrementally or not.
InstancesSummaryPanel	getSummary() Gets the instances summary panel associated with this panel.
void	removePropertyChangeListener(PropertyChangeListener l) Removes a PropertyChangeListener.
void	setInstances(Instances i) Updates the set of instances that is currently held by the panel.
void	setInstancesFromFileQ() Queries the user for a file to load instances from, then loads the instances in a background process.
void	setInstancesFromURLQ() Queries the user for a URL to load instances from, then loads the instances in a background process.
void	setParentFrame(JFrame parent) Sets the frame, this panel resides in.
void	setReadIncrementally(boolean incremental) Sets whether or not instances should be read incrementally by the Loader.

Methods inherited from class javax.swing.JPanel

getAccessibleContext, getUI, getUIClassID, setUI, updateUI

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, 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

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, 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, transferFocusBackward, transferFocusDownCycle, validate

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, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, 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, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NO_CLASS

public static final String NO_CLASS

the text denoting "no class" in the class combobox.

See Also:

Constant Field Values

Constructor Detail

SetInstancesPanel

public SetInstancesPanel()

Default constructor.

SetInstancesPanel

public SetInstancesPanel(boolean showZeroInstancesAsUnknown,
                         boolean showClassComboBox)

Create the panel.

Parameters:

showZeroInstancesAsUnknown - whether to display zero instances as unknown (e.g., when reading data incrementally)

showClassComboBox - whether to display a combobox allowing the user to choose the class attribute

Method Detail

setParentFrame

public void setParentFrame(JFrame parent)

Sets the frame, this panel resides in. Used for displaying the close button, i.e., the close-button is visible if the given frame is not null.

Parameters:

parent - the parent frame

getParentFrame

public JFrame getParentFrame()

Returns the current frame the panel knows of, that it resides in. Can be null.

Returns:

the current parent frame

closeFrame

public void closeFrame()

closes the frame, i.e., the visibility is set to false.

setInstancesFromFileQ

public void setInstancesFromFileQ()

Queries the user for a file to load instances from, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

setInstancesFromURLQ

public void setInstancesFromURLQ()

Queries the user for a URL to load instances from, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

setInstances

public void setInstances(Instances i)

Updates the set of instances that is currently held by the panel.

Parameters:

i - a value of type 'Instances'

getInstances

public Instances getInstances()

Gets the set of instances currently held by the panel.

Returns:

a value of type 'Instances'

getClassIndex

public int getClassIndex()

Returns the currently selected class index.

Returns:

the class index, -1 if none selected

getLoader

public Loader getLoader()

Gets the currently used Loader.

Returns:

a value of type 'Loader'

getSummary

public InstancesSummaryPanel getSummary()

Gets the instances summary panel associated with this panel.

Returns:

the instances summary panel

setReadIncrementally

public void setReadIncrementally(boolean incremental)

Sets whether or not instances should be read incrementally by the Loader. If incremental reading is used, then the client should obtain the Loader object (by calling getLoader()) and read the instances one at a time. If batch loading is used, then SetInstancesPanel will load the data into memory inside of a separate thread and notify the client when the operation is complete. The client can then retrieve the instances by calling getInstances().

Parameters:

incremental - true if instances are to be read incrementally

getReadIncrementally

public boolean getReadIncrementally()

Gets whether instances are to be read incrementally or not.

Returns:

true if instances are to be read incrementally

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener l)

Adds a PropertyChangeListener who will be notified of value changes.

Overrides:

addPropertyChangeListener in class Container

Parameters:

l - a value of type 'PropertyChangeListener'

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener l)

Removes a PropertyChangeListener.

Overrides:

removePropertyChangeListener in class Component

Parameters:

l - a value of type 'PropertyChangeListener'