org.peace_tools.views.overlap
Class ClusterListCellRenderer

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JLabel
                  javax.swing.DefaultListCellRenderer
                      org.peace_tools.views.overlap.ClusterListCellRenderer

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, javax.swing.ListCellRenderer, javax.swing.SwingConstants

 class ClusterListCellRenderer
extends javax.swing.DefaultListCellRenderer

A custom cell renderer to efficiently display large cluster list.

This cell renderer is meant to be used to render entries in a JList. Specifically it is used to render cluster entries in the cluster list owned by the OverlapView class. This cell renderer utilizes the base class for most of the tasks and then adds a icon to display the color currently set for this cluster. The color used for a cluster is obtained via the ClusterColorMapper interface method(s). Therefore the constructor requires an ClusterColorMapper object to be passed in as a parameter.

NoteThis class is meant to be instantiated and used only by the OverlapView class. Consequently it has been made package private.

Nested Class Summary

private class

ClusterListCellRenderer.CustomIcon A simple, custom icon class.

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

javax.swing.DefaultListCellRenderer.UIResource

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

javax.swing.JLabel.AccessibleJLabel

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

private javax.swing.border.Border	border A simple (typically empty) border around each entry to make the list appear more pleasing to the eye.
private ClusterListCellRenderer.CustomIcon	colorIcon The icon that is used in the label created by the getListCellRendererComponent method.
private ClusterColorMapper	colorMapper The ClusterColorMapper that provides the coloring information for rendering the colored icons with each entry.
private static int	ICON_SIZE The size of the square to be used to display the color being used for rendering the cluster.
private static long	serialVersionUID Generated serialization UID (merely to keep the compiler happy)

Fields inherited from class javax.swing.DefaultListCellRenderer

noFocusBorder

Fields inherited from class javax.swing.JLabel

labelFor

Fields inherited from class javax.swing.JComponent

accessibleContext, 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

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

ClusterListCellRenderer(ClusterColorMapper overlapPanel)
The default constructor.

Method Summary

java.awt.Component

getListCellRendererComponent(javax.swing.JList list, java.lang.Object value, int index, boolean isSelected, boolean cellHasFocus) Overrides base class method to provide customized color icon.

Methods inherited from class javax.swing.DefaultListCellRenderer

firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, invalidate, isOpaque, repaint, repaint, repaint, revalidate, validate

Methods inherited from class javax.swing.JLabel

checkHorizontalKey, checkVerticalKey, getAccessibleContext, getDisabledIcon, getDisplayedMnemonic, getDisplayedMnemonicIndex, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getLabelFor, getText, getUI, getUIClassID, getVerticalAlignment, getVerticalTextPosition, imageUpdate, paramString, setDisabledIcon, setDisplayedMnemonic, setDisplayedMnemonic, setDisplayedMnemonicIndex, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabelFor, setText, setUI, setVerticalAlignment, setVerticalTextPosition, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, 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, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOptimizedDrawingEnabled, isPaintingForPrint, 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, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, 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, 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, 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, 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, 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, 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

colorIcon

private final ClusterListCellRenderer.CustomIcon colorIcon

The icon that is used in the label created by the getListCellRendererComponent method. The same icon is reused over-and-over to try and reduce the memory footprint.

colorMapper

private final ClusterColorMapper colorMapper

The ClusterColorMapper that provides the coloring information for rendering the colored icons with each entry. This instance variable is initialized by the constructor and is never changed during the life time of this object.

border

private final javax.swing.border.Border border

A simple (typically empty) border around each entry to make the list appear more pleasing to the eye.

ICON_SIZE

private static final int ICON_SIZE

The size of the square to be used to display the color being used for rendering the cluster.

See Also:

Constant Field Values

serialVersionUID

private static final long serialVersionUID

Generated serialization UID (merely to keep the compiler happy)

See Also:

Constant Field Values

Constructor Detail

ClusterListCellRenderer

public ClusterListCellRenderer(ClusterColorMapper overlapPanel)

The default constructor.

Parameters:

overlapPanel - The overlap panel from where the color information is to be obtained for a given cluster entry.

Method Detail

getListCellRendererComponent

public java.awt.Component getListCellRendererComponent(javax.swing.JList list,
                                                       java.lang.Object value,
                                                       int index,
                                                       boolean isSelected,
                                                       boolean cellHasFocus)

Overrides base class method to provide customized color icon. This method overrides the default implementation in the parent class to add a customized icon to the label returned by this method.

Specified by:

getListCellRendererComponent in interface javax.swing.ListCellRenderer

Overrides:

getListCellRendererComponent in class javax.swing.DefaultListCellRenderer

Parameters:

list - The list in which this renderer is currently being used.

value - The value for which a cell renderer is required. This value must be a ClusterNode in order for a custom icon to be generated.

index - The logical index of the value in the list.

isSelected - Flag to indicate if this value is currently selected in the list.

cellHasFocus - Indicates if this cell currently has focus.

Returns:

A JLabel with the necessary information and a icon to indicate color.