com.fr.code.bar.line.codebar

类 CodabarBarcode

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

com.fr.code.BarcodeImpl

com.fr.code.bar.line.codebar.CodabarBarcode

所有已实现的接口:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class CodabarBarcode
extends BarcodeImpl

This is a concrete implementation of the Codabar barcode, AKA USD-4, Monarch, NW-7 and 2of7. This implementation imposes no restrictions on your choice of start and stop characters, so you will need to check that you are using chars acceptable to your barcode scanner. This implementation does support the traditional a, b, c, d, e, t, n and * start/stop chars. Omitting the start/stop chars from your data will cause the barcode to use the default start/stops chars, A and C, respectively.
This implementation provides no support for check digits (as they are not included in the Codabar specification). However, many uses of Codabars mandate the use of a check digit, and the algorithms used vary from application to application. The most common algorithm is Mod-16. If you wish to implement a check digit in your Codabar barcode, you must calculate it yourself and insert it into the data to be encoded before the Stop char (or at the end of the data if you are letting barbecue insert start and stop chars for you).

作者:

Ian Bourke

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 javax.swing.JComponent

javax.swing.JComponent.AccessibleJComponent

从类继承的嵌套类/接口 java.awt.Container

java.awt.Container.AccessibleAWTContainer

从类继承的嵌套类/接口 java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

字段概要

字段

限定符和类型	字段和说明
static java.lang.String	DEFAULT_START The default codabar start character
static java.lang.String	DEFAULT_STOP The default codabar stop character

从类继承的字段 com.fr.code.BarcodeImpl

barHeight, barWidth, data, drawingQuietSection, drawingText, font, size, x, y

从类继承的字段 javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

从类继承的字段 java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

从接口继承的字段 java.awt.image.ImageObserver

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

构造器概要

构造器

构造器和说明
CodabarBarcode(java.lang.String data) Constructs a new Codabar barcode with thte specified data.

方法概要

方法

限定符和类型	方法和说明
protected Module	calculateChecksum() Calculates the check sum digit for the barcode.
protected java.awt.Dimension	draw(AbstractOutput output, int x2, int y2, double barWidth2, double barHeight2)
protected java.awt.Dimension	draw(GraphicsOutput output, int x2, int y2, double barWidth2, double barHeight2)
protected Module[]	encodeData() Encodes the data of the barcode into bars.
protected double	getBarcodeWidth(int resolution) Returns the total width of the barcode in pixels at the given resolution.
protected java.lang.String	getLabel() Returns the text label to be displayed underneath the barcode.
protected Module	getPostAmble() Returns the post-amble for the barcode.
protected Module	getPreAmble() Returns the pre-amble for the barcode.

从类继承的方法 com.fr.code.BarcodeImpl

beautify, calculateMinimumBarHeight, calculateSize, clone, draw, drawModule, drawModule, getBackground, getBounds, getBounds, getData, getFont, getForeground, getHeight, getMaximumSize, getMinimumSize, getPreferredSize, getRcodeDrawPix, getRCodeErrorCorrect, getRCodeVersion, getResolution, getSize, getWidth, getX, getY, invalidateSize, isDrawingQuietSection, isDrawingText, paintComponent, setBackground, setBarHeight, setBarWidth, setDrawingQuietSection, setDrawingText, setFont, setForeground, setRcodeDrawPix, setRCodeErrorCorrect, setRCodeVersion, setResolution, setSVGScalar

从类继承的方法 javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, 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, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI

从类继承的方法 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, transferFocusDownCycle, validate, validateTree

从类继承的方法 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, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, 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, transferFocusBackward, transferFocusUpCycle

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_START

public static final java.lang.String DEFAULT_START

The default codabar start character

另请参阅:

常量字段值

DEFAULT_STOP

public static final java.lang.String DEFAULT_STOP

The default codabar stop character

另请参阅:

常量字段值

构造器详细资料

CodabarBarcode

public CodabarBarcode(java.lang.String data)
               throws BarcodeException

Constructs a new Codabar barcode with thte specified data.

参数:

data - The data to encode

抛出:

BarcodeException - If the data is invalid

方法详细资料

getLabel

protected java.lang.String getLabel()

Returns the text label to be displayed underneath the barcode.

覆盖:

getLabel 在类中 BarcodeImpl

返回:

The barcode label

getBarcodeWidth

protected double getBarcodeWidth(int resolution)

Returns the total width of the barcode in pixels at the given resolution.

指定者:

getBarcodeWidth 在类中 BarcodeImpl

参数:

resolution - The resolution to calculate the width for

返回:

The width of the barcode in pixels

encodeData

protected Module[] encodeData()

Encodes the data of the barcode into bars.

指定者:

encodeData 在类中 BarcodeImpl

返回:

The encoded bar data

calculateChecksum

protected Module calculateChecksum()

Calculates the check sum digit for the barcode.

指定者:

calculateChecksum 在类中 BarcodeImpl

返回:

Null - Codabar has no checksum

getPreAmble

protected Module getPreAmble()

Returns the pre-amble for the barcode.

指定者:

getPreAmble 在类中 BarcodeImpl

返回:

A BlankModule

getPostAmble

protected Module getPostAmble()

Returns the post-amble for the barcode.

指定者:

getPostAmble 在类中 BarcodeImpl

返回:

A BlankModule

draw

protected java.awt.Dimension draw(GraphicsOutput output,
                      int x2,
                      int y2,
                      double barWidth2,
                      double barHeight2)

draw

protected java.awt.Dimension draw(AbstractOutput output,
                      int x2,
                      int y2,
                      double barWidth2,
                      double barHeight2)

指定者:

draw 在类中 BarcodeImpl