Module jpms_dss_pades

Package eu.europa.esig.dss.pdf.visible

Class ImageRotationUtils

java.lang.Object

eu.europa.esig.dss.pdf.visible.ImageRotationUtils

public class ImageRotationUtils
extends Object

Contains utils for the image rotation

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ANGLE_0	Default 0 degrees
static final int	ANGLE_180	180 degrees
static final int	ANGLE_270	270 degrees
static final int	ANGLE_360	360 degrees (= 0 degrees)
static final int	ANGLE_90	90 degrees
static final String	SUPPORTED_ANGLES_ERROR_MESSAGE	A message with supported angles

Method Summary

Modifier and Type	Method	Description
static AnnotationBox	ensureNoRotate(AnnotationBox annotationBox, int pageRotation)	This method is used to ensure the annotation wrapping box defines correct coordinates relatively the "noRotate" flag
static int	getRotation(eu.europa.esig.dss.enumerations.VisualSignatureRotation visualSignatureRotation)	Returns rotation parameter not depending on the page rotation
static int	getRotation(eu.europa.esig.dss.enumerations.VisualSignatureRotation visualSignatureRotation, int pageRotation)	Returns rotation based on the page's default rotation parameter
static boolean	isSwapOfDimensionsRequired(int rotation)	Verifies if swap of dimensions is required with the current rotation
static boolean	isSwapOfDimensionsRequired(eu.europa.esig.dss.enumerations.VisualSignatureRotation rotation)	Verifies if swap of dimensions is required with the current rotation
static AnnotationBox	rotateRelativelyWrappingBox(AnnotationBox annotationBox, AnnotationBox wrappingBox, int rotation)	This method rotates the given annotationBox relatively the wrappingBox according to the given rotation
static AnnotationBox	swapDimensions(AnnotationBox annotationBox)	This method swaps dimensions of the given AnnotationBox

Methods inherited from class java.lang.Object

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

Field Details

SUPPORTED_ANGLES_ERROR_MESSAGE

public static final String SUPPORTED_ANGLES_ERROR_MESSAGE

A message with supported angles

See Also:

• Constant Field Values

ANGLE_0

public static final int ANGLE_0

Default 0 degrees

See Also:

• Constant Field Values

ANGLE_90

public static final int ANGLE_90

90 degrees

See Also:

• Constant Field Values

ANGLE_180

public static final int ANGLE_180

180 degrees

See Also:

• Constant Field Values

ANGLE_270

public static final int ANGLE_270

270 degrees

See Also:

• Constant Field Values

ANGLE_360

public static final int ANGLE_360

360 degrees (= 0 degrees)

See Also:

• Constant Field Values

Method Details

getRotation

public static int getRotation(eu.europa.esig.dss.enumerations.VisualSignatureRotation visualSignatureRotation)

Returns rotation parameter not depending on the page rotation

Parameters:

visualSignatureRotation - VisualSignatureRotation

Returns:

int rotation angle

getRotation

public static int getRotation(eu.europa.esig.dss.enumerations.VisualSignatureRotation visualSignatureRotation,
 int pageRotation)

Returns rotation based on the page's default rotation parameter

Parameters:

visualSignatureRotation - VisualSignatureRotation

pageRotation - the rotation of a page

Returns:

int rotation angle

isSwapOfDimensionsRequired

public static boolean isSwapOfDimensionsRequired(int rotation)

Verifies if swap of dimensions is required with the current rotation

Parameters:

rotation - int rotation degree

Returns:

TRUE is swap of dimensions is required, FALSE otherwise

isSwapOfDimensionsRequired

public static boolean isSwapOfDimensionsRequired(eu.europa.esig.dss.enumerations.VisualSignatureRotation rotation)

Verifies if swap of dimensions is required with the current rotation

Parameters:

rotation - VisualSignatureRotation

Returns:

TRUE is swap of dimensions is required, FALSE otherwise

swapDimensions

public static AnnotationBox swapDimensions(AnnotationBox annotationBox)

This method swaps dimensions of the given AnnotationBox

Parameters:

annotationBox - AnnotationBox

Returns:

AnnotationBox

rotateRelativelyWrappingBox

public static AnnotationBox rotateRelativelyWrappingBox(AnnotationBox annotationBox,
 AnnotationBox wrappingBox,
 int rotation)

This method rotates the given annotationBox relatively the wrappingBox according to the given rotation

Parameters:

annotationBox - AnnotationBox to rotate

wrappingBox - AnnotationBox representing wrapping box

rotation - rotation degree

Returns:

AnnotationBox

ensureNoRotate

public static AnnotationBox ensureNoRotate(AnnotationBox annotationBox,
 int pageRotation)

This method is used to ensure the annotation wrapping box defines correct coordinates relatively the "noRotate" flag

Parameters:

annotationBox - AnnotationBox containing coordinates extracted from PDF document

pageRotation - the page rotation degree

Returns:

AnnotationBox with coordinates for the "noRotate" flag annotation relatively the page's rotation