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java.lang.Object | +--java.awt.Component | +--java.awt.Container | +--javax.swing.JComponent | +--com.objectwave.uiWidget.JGraph | +--com.objectwave.uiWidget.Histogram
This class displays a histogram (bar-graph) of the given data in the given scale. Note that there's an boolean autoRange data member. If this is "true" then the scale of the graph will be relative to the size of the data. This implementation is incomplete. It will not display negative values in the desired manner: all values will be drawn from the bottom of the graph, not from 0. Additionally, there should be indicators on the side of the graph to give a scale: at least minValue, 0, and maxValue should be displayed, if available real estate is available. Finally, it would be useful to provide the option of displaying the graph in any of the four orientations (left->right, right->left, top->bottom, bottom->top) instead of just bottom->top. In left<->rights orientations, the ability to write the labels associated with the different bars would be useful.
Field Summary | |
boolean |
autoRange
|
int |
barBase
|
int |
maxValue
|
int |
minValue
|
int |
numTicks
|
Fields inherited from class com.objectwave.uiWidget.JGraph |
blue, bottom, currColor, focusedItemValue, graphItems, green, itemListeners, left, padding, recalc, red, right, selectedItem, shadeSelection, top |
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 java.awt.image.ImageObserver |
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
Histogram()
|
Method Summary | |
void |
addItem(java.lang.Object object,
int value,
java.awt.Color col)
Pass an object instead of a name so that it can be accessed later. |
void |
addItem(java.lang.String name,
int value)
|
void |
addItem(java.lang.String name,
int value,
java.awt.Color col)
|
void |
clear()
|
protected java.awt.event.MouseMotionListener |
getMouseMotionListener()
|
GraphItem |
itemAtPoint(java.awt.Point p)
|
void |
paint(java.awt.Graphics g)
|
void |
removeItem(java.lang.String name)
|
void |
setRange()
|
protected void |
updateFocusedItemLabel(java.awt.Point p)
|
double |
valueAtPoint(java.awt.Point p)
Return the corresponding value in the range [minValue...maxValue] at the given point p. |
Methods inherited from class com.objectwave.uiWidget.JGraph |
addItemListener, fireSelectionEvent, getMouseListener, getPreferredSize, getSelectedItem, getSelectedItem, getSelectedItemLabel, getSelectedObjects, pickColor, removeItemListener, setBounds, setBounds, setDimensions, setSelectedItem, setSelectedItem, setShadeSelection, updateItemLabel |
Methods inherited from class javax.swing.JComponent |
addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFont, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI |
Methods inherited from class java.awt.Container |
add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setLayout, transferFocusBackward, 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, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, 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, processMouseEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, repaint, repaint, repaint, resize, resize, 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 |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
public int minValue
public int maxValue
public boolean autoRange
public int numTicks
public int barBase
Constructor Detail |
public Histogram()
Method Detail |
public void addItem(java.lang.Object object, int value, java.awt.Color col)
addItem
in class JGraph
public void addItem(java.lang.String name, int value)
addItem
in class JGraph
public void addItem(java.lang.String name, int value, java.awt.Color col)
addItem
in class JGraph
public void clear()
clear
in class JGraph
protected java.awt.event.MouseMotionListener getMouseMotionListener()
getMouseMotionListener
in class JGraph
public GraphItem itemAtPoint(java.awt.Point p)
itemAtPoint
in class JGraph
public void paint(java.awt.Graphics g)
paint
in class JGraph
public void removeItem(java.lang.String name)
removeItem
in class JGraph
public void setRange()
protected void updateFocusedItemLabel(java.awt.Point p)
updateFocusedItemLabel
in class JGraph
public double valueAtPoint(java.awt.Point p)
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