com.itextpdf.kernel.pdf.canvas.parser.data

Class ImageRenderInfo

java.lang.Object

com.itextpdf.kernel.pdf.canvas.parser.data.AbstractRenderInfo

com.itextpdf.kernel.pdf.canvas.parser.data.ImageRenderInfo

All Implemented Interfaces:

IEventData

public class ImageRenderInfo
extends AbstractRenderInfo

Represents image data from a PDF.

Field Summary

Fields inherited from class com.itextpdf.kernel.pdf.canvas.parser.data.AbstractRenderInfo

gs

Constructor Summary

Constructors

Constructor and Description
ImageRenderInfo(Stack<CanvasTag> canvasTagHierarchy, CanvasGraphicsState gs, Matrix ctm, PdfStream imageStream, PdfName resourceName, PdfDictionary colorSpaceDictionary, boolean isInline) Creates an ImageRenderInfo.

Method Summary

Modifier and Type	Method and Description
float	getArea() Gets the size of the image in User space units.
List<CanvasTag>	getCanvasTagHierarchy() Gets hierarchy of the canvas tags that wraps given text.
PdfDictionary	getColorSpaceDictionary() Gets the color space dictionary of the image.
PdfImageXObject	getImage() Gets the image wrapped in ImageXObject.
Matrix	getImageCtm() Gets the coordinate transformation matrix in User space which was active when this image was rendered.
PdfName	getImageResourceName() Gets the name of the image resource.
int	getMcid() Gets the marked-content identifier associated with this ImageRenderInfo instance
Vector	getStartPoint() Gets the vector in User space representing the start point of the image.
boolean	hasMcid(int mcid) Checks if the text belongs to a marked content sequence with a given mcid.
boolean	hasMcid(int mcid, boolean checkTheTopmostLevelOnly) Checks if the text belongs to a marked content sequence with a given mcid.
boolean	isInline() Gets the inline flag.

Methods inherited from class com.itextpdf.kernel.pdf.canvas.parser.data.AbstractRenderInfo

checkGraphicsState, getGraphicsState, isGraphicsStatePreserved, preserveGraphicsState, releaseGraphicsState

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageRenderInfo

public ImageRenderInfo(Stack<CanvasTag> canvasTagHierarchy,
                       CanvasGraphicsState gs,
                       Matrix ctm,
                       PdfStream imageStream,
                       PdfName resourceName,
                       PdfDictionary colorSpaceDictionary,
                       boolean isInline)

Creates an ImageRenderInfo.

Parameters:

canvasTagHierarchy - the hierarchy of nested canvas tags for the text from the most inner (nearest to text) tag to the most outer

gs - the canvas graphics state

ctm - the coordinate transformation matrix at the time the image is rendered

imageStream - the image stream object

resourceName - the name of the image resource

colorSpaceDictionary - the color space dictionary from resources which are associated with the image

isInline - defines if the encountered image was inline

Method Detail

getImage

public PdfImageXObject getImage()

Gets the image wrapped in ImageXObject. You can:

• get image bytes with PdfImageXObject.getImageBytes(boolean), these image bytes represent native image, i.e you can write these bytes to disk and get just an usual image;
• obtain PdfStream object which contains image dictionary with PdfObjectWrapper.getPdfObject() method;
• convert image to BufferedImage with PdfImageXObject.getBufferedImage();

Returns:

the image

getImageResourceName

public PdfName getImageResourceName()

Gets the name of the image resource.

Returns:

the name of the image resource

getStartPoint

public Vector getStartPoint()

Gets the vector in User space representing the start point of the image.

Returns:

the vector in User space representing the start point of the image

getImageCtm

public Matrix getImageCtm()

Gets the coordinate transformation matrix in User space which was active when this image was rendered.

Returns:

the coordinate transformation matrix in User space which was active when this image was rendered

getArea

public float getArea()

Gets the size of the image in User space units.

Returns:

the size of the image, in User space units

isInline

public boolean isInline()

Gets the inline flag.

Returns:

true if image was inlined in original stream

getColorSpaceDictionary

public PdfDictionary getColorSpaceDictionary()

Gets the color space dictionary of the image.

Returns:

the color space dictionary from resources which are associated with the image

getCanvasTagHierarchy

public List<CanvasTag> getCanvasTagHierarchy()

Gets hierarchy of the canvas tags that wraps given text.

Returns:

list of the wrapping canvas tags. The first tag is the innermost (nearest to the text).

getMcid

public int getMcid()

Gets the marked-content identifier associated with this ImageRenderInfo instance

Returns:

associated marked-content identifier or -1 in case content is unmarked

hasMcid

public boolean hasMcid(int mcid)

Checks if the text belongs to a marked content sequence with a given mcid.

Parameters:

mcid - a marked content id

Returns:

true if the text is marked with this id

hasMcid

public boolean hasMcid(int mcid,
                       boolean checkTheTopmostLevelOnly)

Checks if the text belongs to a marked content sequence with a given mcid.

Parameters:

mcid - a marked content id

checkTheTopmostLevelOnly - indicates whether to check the topmost level of marked content stack only

Returns:

true if the text is marked with this id