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## com.lowagie.text.pdf
Class Barcode

    java.lang.Object
      com.lowagie.text.pdf.Barcode

Direct Known Subclasses:
  Barcode128, Barcode39, BarcodeCodabar, BarcodeEAN, BarcodeEANSUPP, BarcodeInter25, BarcodePostnet

    public abstract class Barcode

extends Object

Base class containing properties and methods common to all barcode types.

Author:
  Paulo Soares (psoares@consiste.pt)

Field Summary
`protected String` | `altText` The alternate text to be used, if present.
`protected float` | `barHeight` The height of the bars.
`protected float` | `baseline` If positive, the text distance under the bars.
`protected boolean` | `checksumText` Shows the generated checksum in the the text.
`static int` | `CODABAR` A type of barcode
`protected String` | `code` The code to generate.
`static int` | `CODE128` A type of barcode
`static int` | `CODE128_RAW` A type of barcode
`static int` | `CODE128_UCC` A type of barcode
`protected int` | `codeType` The code type.
`static int` | `EAN13` A type of barcode
`static int` | `EAN8` A type of barcode
`protected boolean` | `extended` Generates extended barcode 39.
`protected BaseFont` | `font` The text font.
`protected boolean` | `generateChecksum` The optional checksum generation.
`protected boolean` | `guardBars` Show the guard bars for barcode EAN.
`protected float` | `inkSpreading` The ink spreading.
`protected float` | `n` The bar multiplier for wide bars or the distance between bars for Postnet and Planet.
`static int` | `PLANET` A type of barcode
`static int` | `POSTNET` A type of barcode
`protected float` | `size` The size of the text or the height of the shorter bar in Postnet.
`protected boolean` | `startStopText` Show the start and stop character '*' in the text for the barcode 39 or 'ABCD' for codabar.
`static int` | `SUPP2` A type of barcode
`static int` | `SUPP5` A type of barcode
`protected int` | `textAlignment` The text alignment.
`static int` | `UPCA` A type of barcode
`static int` | `UPCE` A type of barcode
`protected float` | `x` The minimum bar width.

Constructor Summary
`Barcode()`

Method Summary
`abstract Image` | `createAwtImage(Color foreground, Color background)` Creates a `java.awt.Image`.
`Image` | `createImageWithBarcode(PdfContentByte cb, Color barColor, Color textColor)` Creates an `Image` with the barcode.
`PdfTemplate` | `createTemplateWithBarcode(PdfContentByte cb, Color barColor, Color textColor)` Creates a template with the barcode.
`String` | `getAltText()` Gets the alternate text.
`abstract Rectangle` | `getBarcodeSize()` Gets the maximum area that the barcode and the text, if any, will occupy.
`float` | `getBarHeight()` Gets the height of the bars.
`float` | `getBaseline()` Gets the text baseline.
`String` | `getCode()` Gets the code to generate.
`int` | `getCodeType()` Gets the code type.
`BaseFont` | `getFont()` Gets the text font.
`float` | `getInkSpreading()` Gets the amount of ink spreading.
`float` | `getN()` Gets the bar multiplier for wide bars.
`float` | `getSize()` Gets the size of the text.
`int` | `getTextAlignment()` Gets the text alignment.
`float` | `getX()` Gets the minimum bar width.
`boolean` | `isChecksumText()` Gets the property to show the generated checksum in the the text.
`boolean` | `isExtended()` Gets the property to generate extended barcode 39.
`boolean` | `isGenerateChecksum()` Gets the optional checksum generation.
`boolean` | `isGuardBars()` Gets the property to show the guard bars for barcode EAN.
`boolean` | `isStartStopText()` Sets the property to show the start and stop character '*' in the text for the barcode 39.
`abstract Rectangle` | `placeBarcode(PdfContentByte cb, Color barColor, Color textColor)` Places the barcode in a `PdfContentByte`.
`void` | `setAltText(String altText)` Sets the alternate text.
`void` | `setBarHeight(float barHeight)` Sets the height of the bars.
`void` | `setBaseline(float baseline)` Sets the text baseline.
`void` | `setChecksumText(boolean checksumText)` Sets the property to show the generated checksum in the the text.
`void` | `setCode(String code)` Sets the code to generate.
`void` | `setCodeType(int codeType)` Sets the code type.
`void` | `setExtended(boolean extended)` Sets the property to generate extended barcode 39.
`void` | `setFont(BaseFont font)` Sets the text font.
`void` | `setGenerateChecksum(boolean generateChecksum)` Setter for property generateChecksum.
`void` | `setGuardBars(boolean guardBars)` Sets the property to show the guard bars for barcode EAN.
`void` | `setInkSpreading(float inkSpreading)` Sets the amount of ink spreading.
`void` | `setN(float n)` Sets the bar multiplier for wide bars.
`void` | `setSize(float size)` Sets the size of the text.
`void` | `setStartStopText(boolean startStopText)` Gets the property to show the start and stop character '*' in the text for the barcode 39.
`void` | `setTextAlignment(int textAlignment)` Sets the text alignment.
`void` | `setX(float x)` Sets the minimum bar width.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### EAN13

    public static final int EAN13

  A type of barcode

  See Also:
    Constant Field Values

### EAN8

    public static final int EAN8

  A type of barcode

  See Also:
    Constant Field Values

### UPCA

    public static final int UPCA

  A type of barcode

  See Also:
    Constant Field Values

### UPCE

    public static final int UPCE

  A type of barcode

  See Also:
    Constant Field Values

### SUPP2

    public static final int SUPP2

  A type of barcode

  See Also:
    Constant Field Values

### SUPP5

    public static final int SUPP5

  A type of barcode

  See Also:
    Constant Field Values

### POSTNET

    public static final int POSTNET

  A type of barcode

  See Also:
    Constant Field Values

### PLANET

    public static final int PLANET

  A type of barcode

  See Also:
    Constant Field Values

### CODE128

    public static final int CODE128

  A type of barcode

  See Also:
    Constant Field Values

### CODE128_UCC

    public static final int CODE128_UCC

  A type of barcode

  See Also:
    Constant Field Values

### CODE128_RAW

    public static final int CODE128_RAW

  A type of barcode

  See Also:
    Constant Field Values

### CODABAR

    public static final int CODABAR

  A type of barcode

  See Also:
    Constant Field Values

### x

    protected float x

  The minimum bar width.

### n

    protected float n

  The bar multiplier for wide bars or the distance between bars for Postnet and Planet.

### font

    protected BaseFont font

  The text font. `null` if no text.

### size

    protected float size

  The size of the text or the height of the shorter bar in Postnet.

### baseline

    protected float baseline

  If positive, the text distance under the bars. If zero or negative, the text distance above the bars.

### barHeight

    protected float barHeight

  The height of the bars.

### textAlignment

    protected int textAlignment

  The text alignment. Can be `Element.ALIGN_LEFT`, `Element.ALIGN_CENTER` or `Element.ALIGN_RIGHT`.

### generateChecksum

    protected boolean generateChecksum

  The optional checksum generation.

### checksumText

    protected boolean checksumText

  Shows the generated checksum in the the text.

### startStopText

    protected boolean startStopText

  Show the start and stop character '*' in the text for the barcode 39 or 'ABCD' for codabar.

### extended

    protected boolean extended

  Generates extended barcode 39.

### code

    protected String code

  The code to generate.

### guardBars

    protected boolean guardBars

  Show the guard bars for barcode EAN.

### codeType

    protected int codeType

  The code type.

### inkSpreading

    protected float inkSpreading

  The ink spreading.

### altText

    protected String altText

  The alternate text to be used, if present.

Constructor Detail

### Barcode

    public Barcode()

Method Detail

### getX

    public float getX()

  Gets the minimum bar width.

  Returns:
    the minimum bar width

### setX

    public void setX(float x)

  Sets the minimum bar width.

  Parameters:
    `x` - the minimum bar width

### getN

    public float getN()

  Gets the bar multiplier for wide bars.

  Returns:
    the bar multiplier for wide bars

### setN

    public void setN(float n)

  Sets the bar multiplier for wide bars.

  Parameters:
    `n` - the bar multiplier for wide bars

### getFont

    public BaseFont getFont()

  Gets the text font. `null` if no text.

  Returns:
    the text font. `null` if no text

### setFont

    public void setFont(BaseFont font)

  Sets the text font.

  Parameters:
    `font` - the text font. Set to `null` to suppress any text

### getSize

    public float getSize()

  Gets the size of the text.

  Returns:
    the size of the text

### setSize

    public void setSize(float size)

  Sets the size of the text.

  Parameters:
    `size` - the size of the text

### getBaseline

    public float getBaseline()

  Gets the text baseline. If positive, the text distance under the bars. If zero or negative, the text distance above the bars.

  Returns:
    the baseline.

### setBaseline

    public void setBaseline(float baseline)

  Sets the text baseline. If positive, the text distance under the bars. If zero or negative, the text distance above the bars.

  Parameters:
    `baseline` - the baseline.

### getBarHeight

    public float getBarHeight()

  Gets the height of the bars.

  Returns:
    the height of the bars

### setBarHeight

    public void setBarHeight(float barHeight)

  Sets the height of the bars.

  Parameters:
    `barHeight` - the height of the bars

### getTextAlignment

    public int getTextAlignment()

  Gets the text alignment. Can be `Element.ALIGN_LEFT`, `Element.ALIGN_CENTER` or `Element.ALIGN_RIGHT`.

  Returns:
    the text alignment

### setTextAlignment

    public void setTextAlignment(int textAlignment)

  Sets the text alignment. Can be `Element.ALIGN_LEFT`, `Element.ALIGN_CENTER` or `Element.ALIGN_RIGHT`.

  Parameters:
    `textAlignment` - the text alignment

### isGenerateChecksum

    public boolean isGenerateChecksum()

  Gets the optional checksum generation.

  Returns:
    the optional checksum generation

### setGenerateChecksum

    public void setGenerateChecksum(boolean generateChecksum)

  Setter for property generateChecksum.

  Parameters:
    `generateChecksum` - New value of property generateChecksum.

### isChecksumText

    public boolean isChecksumText()

  Gets the property to show the generated checksum in the the text.

  Returns:
    value of property checksumText

### setChecksumText

    public void setChecksumText(boolean checksumText)

  Sets the property to show the generated checksum in the the text.

  Parameters:
    `checksumText` - new value of property checksumText

### isStartStopText

    public boolean isStartStopText()

  Sets the property to show the start and stop character '*' in the text for the barcode 39.

  Returns:
    value of property startStopText

### setStartStopText

    public void setStartStopText(boolean startStopText)

  Gets the property to show the start and stop character '*' in the text for the barcode 39.

  Parameters:
    `startStopText` - new value of property startStopText

### isExtended

    public boolean isExtended()

  Gets the property to generate extended barcode 39.

  Returns:
    value of property extended.

### setExtended

    public void setExtended(boolean extended)

  Sets the property to generate extended barcode 39.

  Parameters:
    `extended` - new value of property extended

### getCode

    public String getCode()

  Gets the code to generate.

  Returns:
    the code to generate

### setCode

    public void setCode(String code)

  Sets the code to generate.

  Parameters:
    `code` - the code to generate

### isGuardBars

    public boolean isGuardBars()

  Gets the property to show the guard bars for barcode EAN.

  Returns:
    value of property guardBars

### setGuardBars

    public void setGuardBars(boolean guardBars)

  Sets the property to show the guard bars for barcode EAN.

  Parameters:
    `guardBars` - new value of property guardBars

### getCodeType

    public int getCodeType()

  Gets the code type.

  Returns:
    the code type

### setCodeType

    public void setCodeType(int codeType)

  Sets the code type.

  Parameters:
    `codeType` - the code type

### getBarcodeSize

    public abstract Rectangle getBarcodeSize()

  Gets the maximum area that the barcode and the text, if any, will occupy. The lower left corner is always (0, 0).

  Returns:
    the size the barcode occupies.

### placeBarcode

    public abstract Rectangle placeBarcode(PdfContentByte cb,
                                           Color barColor,
                                           Color textColor)

  Places the barcode in a `PdfContentByte`. The barcode is always placed at coordinates (0, 0). Use the translation matrix to move it elsewhere.

  The bars and text are written in the following colors:

  `barColor` | `textColor` | Result
  --- | --- | ---
  `null` | `null` | bars and text painted with current fill color
  `barColor` | `null` | bars and text painted with `barColor`
  `null` | `textColor` | bars painted with current color text painted with `textColor`
  `barColor` | `textColor` | bars painted with `barColor` text painted with `textColor`

  Parameters:
    `cb` - the `PdfContentByte` where the barcode will be placed
    `barColor` - the color of the bars. It can be `null`
    `textColor` - the color of the text. It can be `null`
  Returns:
    the dimensions the barcode occupies

### createTemplateWithBarcode

    public PdfTemplate createTemplateWithBarcode(PdfContentByte cb,
                                                 Color barColor,
                                                 Color textColor)

  Creates a template with the barcode.

  Parameters:
    `cb` - the `PdfContentByte` to create the template. It serves no other use
    `barColor` - the color of the bars. It can be `null`
    `textColor` - the color of the text. It can be `null`
  Returns:
    the template
  See Also:
    `placeBarcode(PdfContentByte cb, Color barColor, Color textColor)`

### createImageWithBarcode

    public Image createImageWithBarcode(PdfContentByte cb,
                                        Color barColor,
                                        Color textColor)

  Creates an `Image` with the barcode.

  Parameters:
    `cb` - the `PdfContentByte` to create the `Image`. It serves no other use
    `barColor` - the color of the bars. It can be `null`
    `textColor` - the color of the text. It can be `null`
  Returns:
    the `Image`
  See Also:
    `placeBarcode(PdfContentByte cb, Color barColor, Color textColor)`

### createAwtImage

    public abstract Image createAwtImage(Color foreground,
                                         Color background)

  Creates a `java.awt.Image`. This image only contains the bars without any text.

  Parameters:
    `foreground` - the color of the bars
    `background` - the color of the background
  Returns:
    the image

### getInkSpreading

    public float getInkSpreading()

  Gets the amount of ink spreading.

  Returns:
    the ink spreading

### setInkSpreading

    public void setInkSpreading(float inkSpreading)

  Sets the amount of ink spreading. This value will be subtracted to the width of each bar. The actual value will depend on the ink and the printing medium.

  Parameters:
    `inkSpreading` - the ink spreading

### getAltText

    public String getAltText()

  Gets the alternate text.

  Returns:
    the alternate text

### setAltText

    public void setAltText(String altText)

  Sets the alternate text. If present, this text will be used instead of the text derived from the supplied code.

  Parameters:
    `altText` - the alternate text

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