org.jscience.awt
Class BarGraph

java.lang.Object
  java.awt.Component
      java.awt.Canvas
          org.jscience.awt.DoubleBufferedCanvas
              org.jscience.awt.CategoryGraph2D
                  org.jscience.awt.BarGraph

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, GraphDataListener

Direct Known Subclasses:

LayeredBarGraph, StackedBarGraph

public class BarGraph
extends CategoryGraph2D

A bar graph AWT component. Multiple series are side-by-side.

See Also:

Serialized Form

Nested Class Summary

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

java.awt.Canvas.AccessibleAWTCanvas

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

protected java.awt.Color[]	barColor Bar colors.
protected int	barPad Padding.
protected int	barWidth DOCUMENT ME!
protected float	maxY Min and max data points.
protected float	minY Min and max data points.
protected boolean	numbering Axis numbering.
protected java.text.NumberFormat	xNumberFormat DOCUMENT ME!
protected java.text.NumberFormat	yNumberFormat DOCUMENT ME!

Fields inherited from class org.jscience.awt.CategoryGraph2D

axisPad, leftAxisPad, model, origin, scalePad

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

BarGraph(CategoryGraph2DModel cgm)
Constructs a bar graph.

Method Summary

void	dataChanged(GraphDataEvent e) Implementation of GraphDataListener.
protected java.awt.Point	dataToScreen(float x, float y) Converts a data point to screen coordinates.
protected void	drawAxes(java.awt.Graphics g) Draws the graph axes.
protected void	drawBars(java.awt.Graphics g) Draws the graph bars.
java.awt.Color	getColor(int n) Gets the bar color of the nth series.
protected void	offscreenPaint(java.awt.Graphics g) Paint the graph.
protected void	rescale() Rescales the bar graph.
protected java.awt.geom.Point2D.Float	screenToData(java.awt.Point p) Converts a screen point to data coordinates.
void	setBounds(int x, int y, int width, int height) Reshapes the bar graph to the specified bounding box.
void	setColor(int n, java.awt.Color c) Sets the bar color of the nth series.
void	setNumberFormat(java.text.NumberFormat format) Sets the display format used for axis numbering.
void	setNumbering(boolean flag) Turns axis numbering on/off.
void	setXNumberFormat(java.text.NumberFormat format) Sets the display format used for x-axis numbering.
void	setYNumberFormat(java.text.NumberFormat format) Sets the display format used for y-axis numbering.

Methods inherited from class org.jscience.awt.CategoryGraph2D

getMinimumSize, getModel, getPreferredSize, setModel

Methods inherited from class org.jscience.awt.DoubleBufferedCanvas

getOffscreenGraphics, paint, print, redraw, update

Methods inherited from class java.awt.Canvas

addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

Methods inherited from class java.lang.Object

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

Field Detail

barColor

protected java.awt.Color[] barColor

Bar colors.

minY

protected float minY

Min and max data points.

maxY

protected float maxY

Min and max data points.

barWidth

protected int barWidth

DOCUMENT ME!

barPad

protected final int barPad

Padding.

See Also:

Constant Field Values

numbering

protected boolean numbering

Axis numbering.

xNumberFormat

protected java.text.NumberFormat xNumberFormat

DOCUMENT ME!

yNumberFormat

protected java.text.NumberFormat yNumberFormat

DOCUMENT ME!

Constructor Detail

BarGraph

public BarGraph(CategoryGraph2DModel cgm)

Constructs a bar graph.

Parameters:

cgm - DOCUMENT ME!

Method Detail

dataChanged

public void dataChanged(GraphDataEvent e)

Implementation of GraphDataListener. Application code will not use this method explicitly, it is used internally.

Specified by:

dataChanged in interface GraphDataListener

Specified by:

dataChanged in class CategoryGraph2D

Parameters:

e - DOCUMENT ME!

setColor

public final void setColor(int n,
                           java.awt.Color c)

Sets the bar color of the nth series.

Parameters:

n - the index of the series.

c - the line color.

getColor

public final java.awt.Color getColor(int n)

Gets the bar color of the nth series.

Parameters:

n - the index of the series.

Returns:

DOCUMENT ME!

setNumbering

public final void setNumbering(boolean flag)

Turns axis numbering on/off.

Parameters:

flag - DOCUMENT ME!

setNumberFormat

public final void setNumberFormat(java.text.NumberFormat format)

Sets the display format used for axis numbering. Convenience method.

Parameters:

format - DOCUMENT ME!

See Also:

setXNumberFormat(NumberFormat), setYNumberFormat(NumberFormat)

setXNumberFormat

public final void setXNumberFormat(java.text.NumberFormat format)

Sets the display format used for x-axis numbering.

Parameters:

format - DOCUMENT ME!

setYNumberFormat

public final void setYNumberFormat(java.text.NumberFormat format)

Sets the display format used for y-axis numbering.

Parameters:

format - DOCUMENT ME!

drawAxes

protected final void drawAxes(java.awt.Graphics g)

Draws the graph axes.

Parameters:

g - DOCUMENT ME!

drawBars

protected void drawBars(java.awt.Graphics g)

Draws the graph bars.

Parameters:

g - DOCUMENT ME!

offscreenPaint

protected final void offscreenPaint(java.awt.Graphics g)

Paint the graph.

Specified by:

offscreenPaint in class DoubleBufferedCanvas

Parameters:

g - DOCUMENT ME!

setBounds

public final void setBounds(int x,
                            int y,
                            int width,
                            int height)

Reshapes the bar graph to the specified bounding box.

Overrides:

setBounds in class java.awt.Component

Parameters:

x - DOCUMENT ME!

y - DOCUMENT ME!

width - DOCUMENT ME!

height - DOCUMENT ME!

rescale

protected final void rescale()

Rescales the bar graph.

dataToScreen

protected final java.awt.Point dataToScreen(float x,
                                            float y)

Converts a data point to screen coordinates.

Parameters:

x - DOCUMENT ME!

y - DOCUMENT ME!

Returns:

DOCUMENT ME!

screenToData

protected final java.awt.geom.Point2D.Float screenToData(java.awt.Point p)

Converts a screen point to data coordinates.

Parameters:

p - DOCUMENT ME!

Returns:

DOCUMENT ME!