com.cete.dynamicpdf.imaging
Class PngImageData

java.lang.Object
  com.cete.dynamicpdf.Resource
      com.cete.dynamicpdf.imaging.ImageData
          com.cete.dynamicpdf.imaging.PngImageData

public class PngImageData
extends ImageData

Class represents the data of a PNG image.

Licensing:
This class is a DynamicPDF Generator Professional Edition feature. One of the following licenses is required for non-evaluation usage:

• DynamicPDF Generator Professional Edition
• DynamicPDF Generator Enterprise Edition
• DynamicPDF Merger Professional Edition
• DynamicPDF Merger Enterprise Edition

Constructor Summary

PngImageData(java.lang.String filePath)
Initializes a new instance of the PngImageData class.

Method Summary

void	draw(DocumentWriter writer) Draws the PNG image data to the given DocumentWriter object.
int	getHeight() Gets the pixel height of the PNG image.
int	getRequiredPdfObjects() Gets the number of PDF objects required by the PNG image data.
float	getScaleX() Gets the X scale of the image.
float	getScaleY() Gets the Y scale of the image.
int	getWidth() Gets the pixel width of the PNG image.
static boolean	isValid(byte[] header) Returns a value indicating if the provides file header is valid for a PNG image.
static boolean	isValid(java.lang.String fileExtension) Returns a value indicating if the provides file extension is valid for a PNG image.

Methods inherited from class com.cete.dynamicpdf.imaging.ImageData

draw, getHorizontalDpi, getImage, getImage, getInterpolate, getPage, getPage, getPointHeight, getPointWidth, getResourceType, getVerticalDpi, setInterpolate

Methods inherited from class com.cete.dynamicpdf.Resource

getUid, newUid

Methods inherited from class java.lang.Object

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

Constructor Detail

PngImageData

public PngImageData(java.lang.String filePath)
             throws java.io.FileNotFoundException

Initializes a new instance of the PngImageData class.

Throws:

java.io.FileNotFoundException - If physical file path of the image is not found.

Parameters:

filePath - Physical file path of the image.

See Also:

PngImageData

Method Detail

isValid

public static boolean isValid(java.lang.String fileExtension)

Returns a value indicating if the provides file extension is valid for a PNG image.

Parameters:

fileExtension - String value containing file extension.

Returns:

true, if the file extension is valid. Otherwise false.

isValid

public static boolean isValid(byte[] header)

Returns a value indicating if the provides file header is valid for a PNG image.

Parameters:

header - Contains the image header bytes.

Returns:

true, if the file extension is valid. Otherwise false.

getRequiredPdfObjects

public int getRequiredPdfObjects()

Gets the number of PDF objects required by the PNG image data.

Overrides:

getRequiredPdfObjects in class Resource

Returns:

the number of PDF objects required by the PNG image data.

getWidth

public int getWidth()

Gets the pixel width of the PNG image.

Specified by:

getWidth in class ImageData

Returns:

the pixel width of the PNG image.

getHeight

public int getHeight()

Gets the pixel height of the PNG image.

Specified by:

getHeight in class ImageData

Returns:

the pixel height of the PNG image.

getScaleX

public float getScaleX()

Gets the X scale of the image.

Specified by:

getScaleX in class ImageData

Returns:

the X scale of the image.

getScaleY

public float getScaleY()

Gets the Y scale of the image.

Specified by:

getScaleY in class ImageData

Returns:

the Y scale of the image.

draw

public void draw(DocumentWriter writer)

Draws the PNG image data to the given DocumentWriter object.

Specified by:

draw in class Resource

Parameters:

writer - DocumentWriter object to receive the PNG image data's output.

See Also:

DocumentWriter