org.jpedal.objects.raw

Class FormStream

java.lang.Object

org.jpedal.objects.raw.FormStream

public class FormStream
extends Object

Scan object and create images, set values in Appearances

Field Summary

Fields

Modifier and Type	Field and Description
protected PdfObjectReader	currentPdfFile handle of file reader for form streams
static boolean	debug
static boolean	debugUnimplemented
static boolean	exitOnError exit when an unimplemented feature or error has occured in form/annot code
static int[]	id
boolean	isXFA flag to show if XFA (will be disabled if XFA from version which is not pure XFA)

Constructor Summary

Constructors

Constructor and Description
FormStream()

Method Summary

Modifier and Type	Method and Description
void	createAppearanceString(FormObject formObj, PdfObjectReader inCurrentPdfFile) takes in a FormObject already populated with values for the child to overwrite
static String	decipherTextFromAP(PdfObjectReader currentPdfFile, PdfObject Xobject) Accepts PdfObjectReader and PdfObject containing an AP stream This reads the AP stream, and returns the display text from stream
static BufferedImage	decode(PdfObject formObj, PdfObjectReader currentPdfFile, PdfObject XObject, int subtype, int width, int height, int offsetImage, float pageScaling) decode appearance stream and convert into VectorRenderObject we can redraw if width and height are 0 we define the size hear offsetImage - 0= no change, 1= offset, 2= invert image pScaling used by HTML - set to 1 otherwise
static void	decodeFontCommandObj(String fontStream, FormObject formObject) takes the PDF commands and creates a font
static Object[]	getDownKeyValues(PdfObject form, PdfFileReader pdfFileReader)
static Object[]	getNormalKeyValues(PdfObject form, PdfFileReader pdfFileReader)
static Object[]	getRolloverKeyValues(PdfObject form, PdfFileReader pdfFileReader)
byte[]	getXFA(int xfaTemplate)
boolean	hasXFADataSet()
boolean	isXFA()
static BufferedImage	rotate(BufferedImage src, int rotation) method to rotate an image through a given angle

Methods inherited from class java.lang.Object

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

Field Detail

debugUnimplemented

public static final boolean debugUnimplemented

See Also:

Constant Field Values

debug

public static final boolean debug

See Also:

Constant Field Values

exitOnError

public static final boolean exitOnError

exit when an unimplemented feature or error has occured in form/annot code

See Also:

Constant Field Values

currentPdfFile

protected PdfObjectReader currentPdfFile

handle of file reader for form streams

isXFA

public boolean isXFA

flag to show if XFA (will be disabled if XFA from version which is not pure XFA)

id

public static final int[] id

Constructor Detail

FormStream

public FormStream()

Method Detail

getRolloverKeyValues

public static Object[] getRolloverKeyValues(PdfObject form,
                                            PdfFileReader pdfFileReader)

getNormalKeyValues

public static Object[] getNormalKeyValues(PdfObject form,
                                          PdfFileReader pdfFileReader)

getDownKeyValues

public static Object[] getDownKeyValues(PdfObject form,
                                        PdfFileReader pdfFileReader)

createAppearanceString

public void createAppearanceString(FormObject formObj,
                                   PdfObjectReader inCurrentPdfFile)

takes in a FormObject already populated with values for the child to overwrite

decode

public static BufferedImage decode(PdfObject formObj,
                                   PdfObjectReader currentPdfFile,
                                   PdfObject XObject,
                                   int subtype,
                                   int width,
                                   int height,
                                   int offsetImage,
                                   float pageScaling)

decode appearance stream and convert into VectorRenderObject we can redraw if width and height are 0 we define the size hear offsetImage - 0= no change, 1= offset, 2= invert image pScaling used by HTML - set to 1 otherwise

decipherTextFromAP

public static String decipherTextFromAP(PdfObjectReader currentPdfFile,
                                        PdfObject Xobject)

Accepts PdfObjectReader and PdfObject containing an AP stream This reads the AP stream, and returns the display text from stream

Parameters:

currentPdfFile - PdfObjectReader object to read the AP stream

Xobject - PdfObject containing the AP stream to be read

Returns:

String containing display text from AP stream

rotate

public static BufferedImage rotate(BufferedImage src,
                                   int rotation)

method to rotate an image through a given angle

Parameters:

src - the source image

rotation - the angle to rotate the image through

Returns:

the rotated image

hasXFADataSet

public boolean hasXFADataSet()

decodeFontCommandObj

public static void decodeFontCommandObj(String fontStream,
                                        FormObject formObject)

takes the PDF commands and creates a font

Parameters:

-

getXFA

public byte[] getXFA(int xfaTemplate)

isXFA

public boolean isXFA()