com.fr.code

类 BarcodeImpl

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

com.fr.code.BarcodeImpl

所有已实现的接口:

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

直接已知子类:

CodabarBarcode, Code128Barcode, Code39Barcode, ITF25Barcode, PDF417Barcode, QRcodeBarcode, UPCABarcode

public abstract class BarcodeImpl
extends javax.swing.JComponent

Abstract barcode class that provides functionality that is common to all barcodes. Specific barcode implementations must subclass this and provide information specific to the barcode type they are implementing.

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
protected double	barHeight
protected double	barWidth
protected java.lang.String	data
protected boolean	drawingQuietSection
protected boolean	drawingText
protected java.awt.Font	font
protected java.awt.Dimension	size
protected int	x
protected int	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

限定符	构造器和说明
protected	BarcodeImpl(java.lang.String data)

方法概要

方法

限定符和类型	方法和说明
protected java.lang.String	beautify(java.lang.String s)
protected abstract Module	calculateChecksum()
protected double	calculateMinimumBarHeight(int resolution)
protected java.awt.Dimension	calculateSize()
java.lang.Object	clone() Clone.
protected abstract java.awt.Dimension	draw(AbstractOutput output, int x2, int y2, double barWidth2, double barHeight2)
void	draw(java.awt.Graphics2D g, int x, int y) Renders this Barcode at the specified location in the specified Graphics2D context.
protected double	drawModule(Module module, AbstractOutput params, double x, double y)
protected double	drawModule(Module module, AbstractOutput params, int x, int y, double width, double height)
protected abstract Module[]	encodeData()
java.awt.Color	getBackground()
protected abstract double	getBarcodeWidth(int resolution)
java.awt.Rectangle	getBounds() From JComponent.
java.awt.Rectangle	getBounds(java.awt.Rectangle rv) From JComponent.
java.lang.String	getData() Returns the data that the barcode is coding for.
java.awt.Font	getFont()
java.awt.Color	getForeground()
int	getHeight() From JComponent.
protected java.lang.String	getLabel() Returns the text that will be displayed underneath the barcode (if requested).
java.awt.Dimension	getMaximumSize() From JComponent.
java.awt.Dimension	getMinimumSize() From JComponent.
protected abstract Module	getPostAmble()
protected abstract Module	getPreAmble()
java.awt.Dimension	getPreferredSize() From JComponent.
int	getRcodeDrawPix()
int	getRCodeErrorCorrect()
int	getRCodeVersion()
protected int	getResolution()
java.awt.Dimension	getSize() From JComponent.
int	getWidth() From JComponent.
int	getX() From JComponent.
int	getY() From JComponent.
protected void	invalidateSize()
boolean	isDrawingQuietSection() Indicates whether the barcode is drawing leading and trailing white space/quiet area.
boolean	isDrawingText() Indicates whether the barcode is drawing a text label underneath the barcode or not.
protected void	paintComponent(java.awt.Graphics g)
void	setBackground(java.awt.Color background)
void	setBarHeight(double barHeight) Sets the desired height for the bars in the barcode (in pixels).
void	setBarWidth(double barWidth) Sets the desired bar width for the barcode.
void	setDrawingQuietSection(boolean drawingQuietSection)
void	setDrawingText(boolean drawingText) Indicates whether the barcode data should be shown as a string underneath the barcode or not.
void	setFont(java.awt.Font font) Sets the font to use when drawing the barcode data string underneath the barcode.
void	setForeground(java.awt.Color foreground)
void	setRcodeDrawPix(int RcodeDrawPix)
void	setRCodeErrorCorrect(int RCodeErrorCorrect)
void	setRCodeVersion(int RCodeVersion)
void	setResolution(int resolution) Sets the desired output resolution for the barcode.
void	setSVGScalar(double scalar, java.lang.String units)

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

data

protected java.lang.String data

drawingText

protected boolean drawingText

drawingQuietSection

protected boolean drawingQuietSection

barWidth

protected double barWidth

barHeight

protected double barHeight

font

protected java.awt.Font font

size

protected java.awt.Dimension size

x

protected int x

y

protected int y

构造器详细资料

BarcodeImpl

protected BarcodeImpl(java.lang.String data)
               throws BarcodeException

抛出:

BarcodeException

方法详细资料

getData

public java.lang.String getData()

Returns the data that the barcode is coding for.

返回:

The barcode raw data

getFont

public java.awt.Font getFont()

指定者:

getFont 在接口中 java.awt.MenuContainer

覆盖:

getFont 在类中 java.awt.Component

setFont

public void setFont(java.awt.Font font)

Sets the font to use when drawing the barcode data string underneath the barcode.

Note that changing this setting after a barcode has been drawn will invalidate the component and may force a refresh.

覆盖:

setFont 在类中 javax.swing.JComponent

参数:

font - The font to use

getForeground

public java.awt.Color getForeground()

覆盖:

getForeground 在类中 java.awt.Component

setForeground

public void setForeground(java.awt.Color foreground)

覆盖:

setForeground 在类中 javax.swing.JComponent

getBackground

public java.awt.Color getBackground()

覆盖:

getBackground 在类中 java.awt.Component

setBackground

public void setBackground(java.awt.Color background)

覆盖:

setBackground 在类中 javax.swing.JComponent

setDrawingText

public void setDrawingText(boolean drawingText)

Indicates whether the barcode data should be shown as a string underneath the barcode or not.

Note that changing this setting after a barcode has been drawn will invalidate the component and may force a refresh.

参数:

drawingText - True if the text should be shown, false if not

isDrawingText

public boolean isDrawingText()

Indicates whether the barcode is drawing a text label underneath the barcode or not.

返回:

True if the text is drawn, false otherwise

setDrawingQuietSection

public void setDrawingQuietSection(boolean drawingQuietSection)

isDrawingQuietSection

public boolean isDrawingQuietSection()

Indicates whether the barcode is drawing leading and trailing white space/quiet area.

返回:

True if the quiet area/white space is drawn, false otherwise

setBarWidth

public void setBarWidth(double barWidth)

Sets the desired bar width for the barcode. This is the width (in pixels) of the thinnest bar in the barcode. Other bars will change their size relative to this.

Note that changing this setting after a barcode has been drawn will invalidate the component and may force a refresh.

参数:

barWidth - The desired width of the thinnest bar in pixels

setBarHeight

public void setBarHeight(double barHeight)

Sets the desired height for the bars in the barcode (in pixels). Note that some barcode implementations will not allow the height to go below a minimum size. This is not the height of the component as a whole, as it does not specify the height of any text that may be drawn and does not include borders.

Note that changing this setting after a barcode has been drawn will invalidate the component and may force a refresh.

参数:

barHeight - The desired height of the barcode bars in pixels

setResolution

public void setResolution(int resolution)

Sets the desired output resolution for the barcode. This method should be used in cases where the barcode is either being outputted to a device other than the screen, or the barcode is being generated on a headless machine (e.g. a rack mounted server) and the screen resolution cannot be determined. Note that is the barcode is generated in either of these situations and this method has not been called, the resolution is assumed to be 72 dots per inch.

参数:

resolution - The desired output resolution (in dots per inch)

getX

public int getX()

From JComponent.

覆盖:

getX 在类中 javax.swing.JComponent

返回:

The X co-ordinate of the component's origin

getY

public int getY()

From JComponent.

覆盖:

getY 在类中 javax.swing.JComponent

返回:

The Y co-ordinate of the component's origin

getWidth

public int getWidth()

From JComponent.

覆盖:

getWidth 在类中 javax.swing.JComponent

返回:

The width of this component

getHeight

public int getHeight()

From JComponent.

覆盖:

getHeight 在类中 javax.swing.JComponent

返回:

The height of this component

getBounds

public java.awt.Rectangle getBounds()

From JComponent.

覆盖:

getBounds 在类中 java.awt.Component

返回:

The bounds of this component

getBounds

public java.awt.Rectangle getBounds(java.awt.Rectangle rv)

From JComponent.

覆盖:

getBounds 在类中 javax.swing.JComponent

参数:

rv - The rectangle to set the bounds on

返回:

The updated rv

getPreferredSize

public java.awt.Dimension getPreferredSize()

From JComponent.

覆盖:

getPreferredSize 在类中 javax.swing.JComponent

返回:

The preferred size of this component

getMinimumSize

public java.awt.Dimension getMinimumSize()

From JComponent.

覆盖:

getMinimumSize 在类中 javax.swing.JComponent

返回:

The minimum size of this component

getMaximumSize

public java.awt.Dimension getMaximumSize()

From JComponent.

覆盖:

getMaximumSize 在类中 javax.swing.JComponent

返回:

The maximum size of this component

getSize

public java.awt.Dimension getSize()

From JComponent.

覆盖:

getSize 在类中 java.awt.Component

返回:

The actual size of this component

draw

public void draw(java.awt.Graphics2D g,
        int x,
        int y)

Renders this Barcode at the specified location in the specified Graphics2D context. The origin of the layout is placed at x, y. Rendering may touch any point within getBounds() of this position. This leaves the g2 unchanged.

参数:

g - The graphics context

x - The horizontal value of the upper left co-ordinate of the bounding box

y - The vertical value of the upper left co-ordinate of the bounding box

draw

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

getBarcodeWidth

protected abstract double getBarcodeWidth(int resolution)

encodeData

protected abstract Module[] encodeData()

calculateChecksum

protected abstract Module calculateChecksum()

getPreAmble

protected abstract Module getPreAmble()

getPostAmble

protected abstract Module getPostAmble()

getLabel

protected java.lang.String getLabel()

Returns the text that will be displayed underneath the barcode (if requested).

返回:

The text label for the barcode

calculateMinimumBarHeight

protected double calculateMinimumBarHeight(int resolution)

getResolution

protected int getResolution()

invalidateSize

protected void invalidateSize()

calculateSize

protected java.awt.Dimension calculateSize()

drawModule

protected double drawModule(Module module,
                AbstractOutput params,
                int x,
                int y,
                double width,
                double height)

drawModule

protected double drawModule(Module module,
                AbstractOutput params,
                double x,
                double y)

beautify

protected java.lang.String beautify(java.lang.String s)

setSVGScalar

public void setSVGScalar(double scalar,
                java.lang.String units)

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Clone.

覆盖:

clone 在类中 java.lang.Object

抛出:

java.lang.CloneNotSupportedException

setRCodeVersion

public void setRCodeVersion(int RCodeVersion)

setRCodeErrorCorrect

public void setRCodeErrorCorrect(int RCodeErrorCorrect)

setRcodeDrawPix

public void setRcodeDrawPix(int RcodeDrawPix)

getRCodeVersion

public int getRCodeVersion()

getRCodeErrorCorrect

public int getRCodeErrorCorrect()

getRcodeDrawPix

public int getRcodeDrawPix()

paintComponent

protected void paintComponent(java.awt.Graphics g)

覆盖:

paintComponent 在类中 javax.swing.JComponent