trex.GUI
Class HistoPanel

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.JPanel
                          |
                          +--trex.GUI.HistoPanel

All Implemented Interfaces:

Accessible, ImageObserver, MenuContainer, Serializable

public class HistoPanel

extends JPanel

This class provides a panel for (possibly two concurrent) histograms of ImageIcons.

Version:

$Revision: 1.4 $

Author:

Bastian Friedrich <bastian@bastian-friedrich.de>

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class javax.swing.JPanel

JPanel.AccessibleJPanel

Nested classes inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

static int	CHANNEL_BLUE Display Histogram for blue channel
static int	CHANNEL_GREEN Display Histogram for green channel
static int	CHANNEL_RED Display Histogram for red channel
static int	CHANNEL_VALUE Display Histogram for value

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

HistoPanel(Frame parent, ImageIcon img1, ImageIcon img2, Color color1, Color color2, String colExpl, int height, int channel)
Constructor.

Method Summary

protected static int[]	collectBins(Frame parent, ImageIcon img, int channel) Grab pixels from image and create histogram bins.
protected static int[]	collectBins(int[] pixels, int channel) Create histogram bins.
static ImageIcon	createHisto(Frame parent, ImageIcon img, int border, int height, Color color, int channel) Create the actual histogram image.
void	setImg1(ImageIcon img) Set image1.
void	setImg2(ImageIcon img) Set image2.

Methods inherited from class javax.swing.JPanel

getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI

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, 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, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, 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

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, 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

CHANNEL_VALUE

public static final int CHANNEL_VALUE

Display Histogram for value

See Also:

Constant Field Values

CHANNEL_RED

public static final int CHANNEL_RED

Display Histogram for red channel

See Also:

Constant Field Values

CHANNEL_GREEN

public static final int CHANNEL_GREEN

Display Histogram for green channel

See Also:

Constant Field Values

CHANNEL_BLUE

public static final int CHANNEL_BLUE

Display Histogram for blue channel

See Also:

Constant Field Values

Constructor Detail

HistoPanel

public HistoPanel(Frame parent,
                  ImageIcon img1,
                  ImageIcon img2,
                  Color color1,
                  Color color2,
                  String colExpl,
                  int height,
                  int channel)

Constructor. Initializes Data and Panel.

Parameters:

parent - Parent window (for message boxes).

img1 - First image to draw histogram for.

img2 - Second image to draw histogram for.

color1 - Color of first histogram.

color2 - Color of second histogram.

colExpl - Text string to inform user of color uses.

height - Image height.

channel - The channel to draw histogram for (CHANNEL_VALUE, CHANNEL_RED, CHANNEL_GREEN or CHANNEL_BLUE).

Method Detail

collectBins

protected static int[] collectBins(int[] pixels,
                                   int channel)

Create histogram bins. All pixels from the array are counted and put in to their respective bins.

Parameters:

pixels - Pixel data.

channel - Channel to display (CHANNEL_VALUE, CHANNEL_RED, CHANNEL_GREEN or CHANNEL_BLUE).

Returns:

The bin array.

collectBins

protected static int[] collectBins(Frame parent,
                                   ImageIcon img,
                                   int channel)

Grab pixels from image and create histogram bins. In fact this method only grabs pixel data and alls collectBins(int[], int).

Parameters:

parent - Parent window.

img - Image to grab pixels from.

channel - Channel to create bins of (see static fields).

Returns:

The bin array.

createHisto

public static ImageIcon createHisto(Frame parent,
                                    ImageIcon img,
                                    int border,
                                    int height,
                                    Color color,
                                    int channel)

Create the actual histogram image.

Parameters:

parent - Parent window (for Message boxes).

img - Image to create histogram for.

border - Empty (unused) border around actual histogram.

height - Image height.

color - Color of histo lines.

channel - The channel to draw histogram for (CHANNEL_VALUE, CHANNEL_RED, CHANNEL_GREEN or CHANNEL_BLUE).

Returns:

An ImageIcon containing the histogram.

setImg1

public void setImg1(ImageIcon img)

Set image1.

Parameters:

img - Image to set as image 1.

setImg2

public void setImg2(ImageIcon img)

Set image2.

Parameters:

img - Image to set as image 2.