com.lowagie.text
Class Png

java.lang.Object
  |
  +--com.lowagie.text.Rectangle
        |
        +--com.lowagie.text.Image
              |
              +--com.lowagie.text.Png

All Implemented Interfaces:

Element, MarkupAttributes

public class Png

extends Image

implements Element

An Png is the representation of a graphic element (PNG) that has to be inserted into the document

See Also:

Element, Image, Gif, Jpeg

Field Summary

static String	IDAT A PNG marker.
static String	IEND A PNG marker.
static String	IHDR A PNG marker.
static String	pHYs A PNG marker.
static String	PLTE A PNG marker.
static int[]	PNGID Some PNG specific values.
static String	tRNS A PNG marker.

Fields inherited from class com.lowagie.text.Image

absoluteX, absoluteY, alignment, alt, annotation, AX, AY, bpc, BX, BY, colorspace, CX, CY, DEFAULT, dpiX, dpiY, DX, DY, imageMask, interpolation, invert, invertMask, LEFT, markupAttributes, mask, MIDDLE, mySerialId, plainHeight, plainWidth, profile, rawData, RIGHT, rotation, scaledHeight, scaledWidth, serialId, template, TEXTWRAP, transparency, type, UNDERLYING, url

Fields inherited from class com.lowagie.text.Rectangle

background, border, borderWidth, BOTTOM, BOX, color, grayFill, llx, lly, NO_BORDER, TOP, UNDEFINED, urx, ury

Fields inherited from interface com.lowagie.text.Element

ALIGN_BASELINE, ALIGN_BOTTOM, ALIGN_CENTER, ALIGN_JUSTIFIED, ALIGN_LEFT, ALIGN_MIDDLE, ALIGN_RIGHT, ALIGN_TOP, ALIGN_UNDEFINED, ANCHOR, ANNOTATION, AUTHOR, CCITT_BLACKIS1, CCITT_ENCODEDBYTEALIGN, CCITT_ENDOFBLOCK, CCITT_ENDOFLINE, CCITTG3_1D, CCITTG3_2D, CCITTG4, CELL, CHAPTER, CHUNK, CREATIONDATE, CREATOR, GIF, GRAPHIC, HEADER, IMGRAW, IMGTEMPLATE, JPEG, KEYWORDS, LIST, LISTITEM, PARAGRAPH, PHRASE, PNG, PRODUCER, PTABLE, RECTANGLE, ROW, SECTION, SUBJECT, TABLE, TITLE

Constructor Summary

	Png(byte[] img) Constructs a Png-object from memory.
	Png(byte[] img, float width, float height) Constructs a Png-object from memory.
(package private)	Png(Image image)
	Png(String filename) Deprecated. use Image.getInstance(...) to create an Image
	Png(String filename, float width, float height) Deprecated. use Image.getInstance(...) to create an Image
	Png(URL url) Constructs a Png-object, using an url.
	Png(URL url, float width, float height) Deprecated. use Image.getInstance(...) to create an Image

Method Summary

static int	getInt(InputStream is) Gets an int from an InputStream.
static String	getString(InputStream is) Gets a String from an InputStream.
static int	getWord(InputStream is) Gets a word from an InputStream.
private void	processParameters() This method checks if the image is a valid PNG and processes some parameters.

Methods inherited from class com.lowagie.text.Image

absoluteX, absoluteY, alignment, alt, annotation, bpc, colorspace, getDpiX, getDpiY, getICCProfile, getImageMask, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getMarkupAttribute, getMarkupAttributeNames, getMarkupAttributes, getMySerialId, getSerialId, getTransparency, hasAbsolutePosition, hasAbsoluteX, hasICCProfile, isGif, isImgRaw, isImgTemplate, isInterpolation, isInvertedJPEG, isInvertMask, isJpeg, isMask, isMaskCandidate, isPng, isTag, makeMask, matrix, plainHeight, plainWidth, rawData, scaleAbsolute, scaleAbsoluteHeight, scaleAbsoluteWidth, scaledHeight, scaledWidth, scalePercent, scalePercent, scaleToFit, setAbsolutePosition, setAlignment, setAlt, setAnnotation, setImageMask, setInterpolation, setInvertMask, setMarkupAttribute, setMarkupAttributes, setRotation, setRotationDegrees, setTemplateData, skip, tagICC, templateData, toURL, type, url

Methods inherited from class com.lowagie.text.Rectangle

backgroundColor, border, borderColor, borderWidth, bottom, bottom, getChunks, getRotation, grayFill, hasBorder, hasBorders, height, left, left, process, rectangle, right, right, rotate, setBackgroundColor, setBorder, setBorderColor, setBorderWidth, setBottom, setGrayFill, setLeft, setRight, setTop, top, top, width

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.lowagie.text.Element

getChunks, process, toString, type

Field Detail

PNGID

public static final int[] PNGID

Some PNG specific values.

IHDR

public static final String IHDR

A PNG marker.

See Also:

Constant Field Values

PLTE

public static final String PLTE

A PNG marker.

See Also:

Constant Field Values

IDAT

public static final String IDAT

A PNG marker.

See Also:

Constant Field Values

IEND

public static final String IEND

A PNG marker.

See Also:

Constant Field Values

tRNS

public static final String tRNS

A PNG marker.

See Also:

Constant Field Values

pHYs

public static final String pHYs

A PNG marker.

See Also:

Constant Field Values

Constructor Detail

Png

Png(Image image)

Png

public Png(URL url)
    throws BadElementException,
           IOException

Constructs a Png-object, using an url.

Parameters:

url - the URL where the image can be found.

Png

public Png(URL url,
           float width,
           float height)
    throws BadElementException,
           IOException

Deprecated. use Image.getInstance(...) to create an Image

Constructs a Png-object, using an url.

Parameters:

url - the URL where the image can be found.

Png

public Png(String filename)
    throws MalformedURLException,
           BadElementException,
           IOException

Deprecated. use Image.getInstance(...) to create an Image

Constructs a Png-object, using a filename.

Parameters:

filename - a String-representation of the file that contains the Image.

Png

public Png(String filename,
           float width,
           float height)
    throws MalformedURLException,
           BadElementException,
           IOException

Deprecated. use Image.getInstance(...) to create an Image

Constructs a Png-object, using a filename.

Parameters:

filename - a String-representation of the file that contains the Image.

Png

public Png(byte[] img)
    throws BadElementException,
           IOException

Constructs a Png-object from memory.

Parameters:

img - the memory image.

Png

public Png(byte[] img,
           float width,
           float height)
    throws BadElementException,
           IOException

Constructs a Png-object from memory.

Parameters:

img - the memory image.

Method Detail

getInt

public static final int getInt(InputStream is)
                        throws IOException

Gets an int from an InputStream.

Parameters:

is - an InputStream

Returns:

the value of an int

IOException

getWord

public static final int getWord(InputStream is)
                         throws IOException

Gets a word from an InputStream.

Parameters:

is - an InputStream

Returns:

the value of an int

IOException

getString

public static final String getString(InputStream is)
                              throws IOException

Gets a String from an InputStream.

Parameters:

is - an InputStream

Returns:

the value of an int

IOException

processParameters

private void processParameters()
                        throws BadElementException,
                               IOException

This method checks if the image is a valid PNG and processes some parameters.

BadElementException

IOException