CmpSpots
Class DrawHistogram

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JPanel
                  CmpSpots.DrawHistogram

All Implemented Interfaces:

java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible

 class DrawHistogram
extends javax.swing.JPanel
implements java.awt.event.MouseListener, java.awt.event.MouseMotionListener

File: DrawHistogram class is used to draw an image intensity histogram

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.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

int	activeBin active bin idx of SCALED sHist[0:nHist-1] else -1
private java.awt.Color	activeBinColor Active bin peak on histogram color
float	activeBinValue active bin data value corresponding to activeBinidx of SCALED sHist[0:nHist-1].
float	binScale sHist[] Bin width sampling or averaging distance computed as floating (nHist/nShist) to map hist[] to a sHist[] bin.
private int	cHeight working canvas height
private static CmpSpots	cs link to global instance
private static CmpShowImage	csi
private int	cWidth working canvas width
private java.lang.String	dataName name of the data used in histogram
private java.lang.String	dataUnits data units abbreviation
(package private) java.awt.Dimension	frameSize size of frame
private java.awt.Color	histColor
private java.awt.Color	histTopColor
private java.awt.Color	labelColor
private java.awt.Font	largeFont medium font used for labeling
float	maxDataValue The maximum data value at hist[max index]
int	maxHistFreqValue The maximum frequency in hist[]
int	maxShistFreq max sHist Frequency in sHist value to be displayed
int	maxShistIdx max non-zero bin of sHist to be displayed
int	meanDataGrayValue mean non-zero data gray value of sHist to display for Image density
float	meanDataValue mean non-zero data value of sHist to be displayed
int	meanShistIdx mean non-zero bin of sHist to be displayed
private java.awt.Color	meanValueBinColor Mean value bin peak on histogram color
int	medianDataGrayValue median non-zero data gray value of sHist to display for Image density
float	medianDataValue median non-zero data value of sHist to be displayed
int	medianShistIdx median non-zero bin of sHist to be displayed
private java.awt.Color	medianValueBinColor Median value bin peak on histogram color
private java.awt.Font	mediumFont medium font used for labeling
float	minDataValue The minimum data value at hist[0]
int	minHistFreqValue The minimum frequency value in hist[]
int	minShistFreq min sHist Frequency in sHist value to be displayed
int	minShistIdx min non-zero bin of sHist to be displayed
int	modeDataGrayValue mode non-zero data gray value of sHist to display for Image density
float	modeDataValue mode non-zero data value of sHist to be displayed
int	modeShistIdx mode non-zero bin of sHist to be displayed
private java.awt.Color	modeValueBinColor Mode value bin peak on histogram color
private int	nShist size of input unscaled histogram[] data
private java.awt.Color	optBkgrdColor
int	preferredHeight preferred size of canvas
int	preferredWidth preferred size of canvas
float	scaleFreq sHist[] frequency scale factor computed as floating (maxHistFreq/nShist)
(package private) static long	serialVersionUID frame id
private int[]	sHist local SCALED histogram [0:nShist-1]data
private int[]	sHistDisp local SCALED histogram [0:nShist-1] scaled to max data value of nShist
private static Util	util link to global instance
int	xLRHC lower Y right hand corner of hist.
private int[]	xPainted local SCALED histogram X position
int	xULHC upper X left hand corner of hist.
int	yLRHC lower Y right hand corner of hist.
int	yULHC upper Y left hand corner of hist.

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

DrawHistogram(CmpShowImage csi, java.awt.Dimension frameSize)
DrawHistogram() - create a blank histogram canvas

Method Summary

private static void	drawFilledBox(java.awt.Graphics g, int xC, int yC, int width, java.awt.Color color) drawFilledBox() - draw plus sign at the specified color.
private static void	drawFilledRectangle(java.awt.Graphics g, int x1, int x2, int y1, int y2, java.awt.Color color) drawFilledRectangle() - draw plus sign at the specified color.
java.awt.Dimension	getPreferredSize() getPreferredSize() - getPreferredSize, must be implemented for ScrollPane to be displayed correctly.
void	mouseClicked(java.awt.event.MouseEvent e)
void	mouseDragged(java.awt.event.MouseEvent e) mouseDragged() - process mouse event
void	mouseEntered(java.awt.event.MouseEvent e)
void	mouseExited(java.awt.event.MouseEvent e)
boolean	mouseHandler(int x, int y) mouseHandler() - search for the active bin if any
void	mouseMoved(java.awt.event.MouseEvent e)
void	mousePressed(java.awt.event.MouseEvent e)
void	mouseReleased(java.awt.event.MouseEvent e) mouseReleased() - process mouse event
void	paintComponent(java.awt.Graphics g) paintComponent() - draw histogram of hist[].
boolean	setHistData(java.lang.String title, java.lang.String dataName, java.lang.String dataUnits, java.lang.String horizCaption, java.lang.String vertCaption, int[] hist, float minDataValue, float maxDataValue) setHistData() - set the hist data, title, Horiz and Vert captions and then repaint to start drawing it.

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, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, 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, 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, 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, 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, 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, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

static final long serialVersionUID

frame id

See Also:

Constant Field Values

csi

private static CmpShowImage csi

cs

private static CmpSpots cs

link to global instance

util

private static Util util

link to global instance

preferredWidth

public int preferredWidth

preferred size of canvas

preferredHeight

public int preferredHeight

preferred size of canvas

mediumFont

private java.awt.Font mediumFont

medium font used for labeling

largeFont

private java.awt.Font largeFont

medium font used for labeling

optBkgrdColor

private java.awt.Color optBkgrdColor

histColor

private java.awt.Color histColor

histTopColor

private java.awt.Color histTopColor

activeBinColor

private java.awt.Color activeBinColor

Active bin peak on histogram color

meanValueBinColor

private java.awt.Color meanValueBinColor

Mean value bin peak on histogram color

modeValueBinColor

private java.awt.Color modeValueBinColor

Mode value bin peak on histogram color

medianValueBinColor

private java.awt.Color medianValueBinColor

Median value bin peak on histogram color

labelColor

private java.awt.Color labelColor

frameSize

java.awt.Dimension frameSize

size of frame

cWidth

private int cWidth

working canvas width

cHeight

private int cHeight

working canvas height

dataName

private java.lang.String dataName

name of the data used in histogram

dataUnits

private java.lang.String dataUnits

data units abbreviation

sHist

private int[] sHist

local SCALED histogram [0:nShist-1]data

nShist

private int nShist

size of input unscaled histogram[] data

sHistDisp

private int[] sHistDisp

local SCALED histogram [0:nShist-1] scaled to max data value of nShist

xPainted

private int[] xPainted

local SCALED histogram X position

activeBin

public int activeBin

active bin idx of SCALED sHist[0:nHist-1] else -1

activeBinValue

public float activeBinValue

active bin data value corresponding to activeBinidx of SCALED sHist[0:nHist-1]. Only valid if activeBin is NEQ -1

xULHC

public int xULHC

upper X left hand corner of hist. graph

yULHC

public int yULHC

upper Y left hand corner of hist. graph

xLRHC

public int xLRHC

lower Y right hand corner of hist. graph

yLRHC

public int yLRHC

lower Y right hand corner of hist. graph

minShistIdx

public int minShistIdx

min non-zero bin of sHist to be displayed

maxShistIdx

public int maxShistIdx

max non-zero bin of sHist to be displayed

meanShistIdx

public int meanShistIdx

mean non-zero bin of sHist to be displayed

medianShistIdx

public int medianShistIdx

median non-zero bin of sHist to be displayed

modeShistIdx

public int modeShistIdx

mode non-zero bin of sHist to be displayed

minShistFreq

public int minShistFreq

min sHist Frequency in sHist value to be displayed

maxShistFreq

public int maxShistFreq

max sHist Frequency in sHist value to be displayed

minHistFreqValue

public int minHistFreqValue

The minimum frequency value in hist[]

maxHistFreqValue

public int maxHistFreqValue

The maximum frequency in hist[]

meanDataValue

public float meanDataValue

mean non-zero data value of sHist to be displayed

medianDataValue

public float medianDataValue

median non-zero data value of sHist to be displayed

modeDataValue

public float modeDataValue

mode non-zero data value of sHist to be displayed

meanDataGrayValue

public int meanDataGrayValue

mean non-zero data gray value of sHist to display for Image density

medianDataGrayValue

public int medianDataGrayValue

median non-zero data gray value of sHist to display for Image density

modeDataGrayValue

public int modeDataGrayValue

mode non-zero data gray value of sHist to display for Image density

minDataValue

public float minDataValue

The minimum data value at hist[0]

maxDataValue

public float maxDataValue

The maximum data value at hist[max index]

binScale

public float binScale

sHist[] Bin width sampling or averaging distance computed as floating (nHist/nShist) to map hist[] to a sHist[] bin.

scaleFreq

public float scaleFreq

sHist[] frequency scale factor computed as floating (maxHistFreq/nShist)

Constructor Detail

DrawHistogram

public DrawHistogram(CmpShowImage csi,
                     java.awt.Dimension frameSize)

DrawHistogram() - create a blank histogram canvas

Parameters:

csi - is CmpShowImage

frameSize - is size of canvas

Method Detail

getPreferredSize

public java.awt.Dimension getPreferredSize()

getPreferredSize() - getPreferredSize, must be implemented for ScrollPane to be displayed correctly.

Overrides:

getPreferredSize in class javax.swing.JComponent

setHistData

public boolean setHistData(java.lang.String title,
                           java.lang.String dataName,
                           java.lang.String dataUnits,
                           java.lang.String horizCaption,
                           java.lang.String vertCaption,
                           int[] hist,
                           float minDataValue,
                           float maxDataValue)

setHistData() - set the hist data, title, Horiz and Vert captions and then repaint to start drawing it. Rescale the hist[] to sHist[0:255].

Parameters:

title - title of histogram

dataName - of the type of data used

dataUnits - of the type of data used

horizCaption - horizontal caption

vertCaption - vertical caption

hist - is the histogram array of any size

minDataValue - is the value the data at hist[0]

maxDataValue - is the value the data at hist[max index]

Returns:

true if succeed, false if there is a problem. i.e. no data

drawFilledBox

private static final void drawFilledBox(java.awt.Graphics g,
                                        int xC,
                                        int yC,
                                        int width,
                                        java.awt.Color color)

drawFilledBox() - draw plus sign at the specified color.

Parameters:

g - is graphics context

x - is center of object

y - is center of object

width - is width of object

color - is color to draw

drawFilledRectangle

private static final void drawFilledRectangle(java.awt.Graphics g,
                                              int x1,
                                              int x2,
                                              int y1,
                                              int y2,
                                              java.awt.Color color)

drawFilledRectangle() - draw plus sign at the specified color.

Parameters:

g - is graphics context

x1 - is Left edge

x1 - is Left edge

y1 - is top edge

color - is color to draw

paintComponent

public void paintComponent(java.awt.Graphics g)

paintComponent() - draw histogram of hist[]. NOTE: size is (csi.HIST_WIDTH x csi.HIST_HEIGHT)

Overrides:

paintComponent in class javax.swing.JComponent

Parameters:

g - is graphics context

mouseHandler

public boolean mouseHandler(int x,
                            int y)

mouseHandler() - search for the active bin if any

Parameters:

x - mouse position

y - mouse position

Returns:

true if found it in the xPainted[] list and set activeBin to the index i in [0:255] else set activeBin to -1.

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent e)

mouseDragged() - process mouse event

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

Parameters:

e - is mouse pressed event

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent e)

mouseReleased() - process mouse event

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Parameters:

e - is mouse pressed event

mousePressed

public void mousePressed(java.awt.event.MouseEvent e)

Specified by:

mousePressed in interface java.awt.event.MouseListener

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent e)

Specified by:

mouseClicked in interface java.awt.event.MouseListener

mouseEntered

public void mouseEntered(java.awt.event.MouseEvent e)

Specified by:

mouseEntered in interface java.awt.event.MouseListener

mouseExited

public void mouseExited(java.awt.event.MouseEvent e)

Specified by:

mouseExited in interface java.awt.event.MouseListener

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent e)

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener