Package com.itextpdf.layout.properties

Class BackgroundImage

java.lang.Object

com.itextpdf.layout.properties.BackgroundImage

public class BackgroundImage
extends java.lang.Object

Class to hold background-image property.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BackgroundImage.Builder	BackgroundImage builder class.

Field Summary

Fields

Modifier and Type	Field	Description
private BackgroundBox	backgroundClip
private BackgroundBox	backgroundOrigin
private BackgroundSize	backgroundSize
private BlendMode	blendMode
private static BlendMode	DEFAULT_BLEND_MODE
private static float	EPS
protected PdfXObject	image
protected AbstractLinearGradientBuilder	linearGradientBuilder
private static UnitValue	PERCENT_VALUE_100
private BackgroundPosition	position
private BackgroundRepeat	repeat

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BackgroundImage(PdfXObject image, BackgroundRepeat repeat, BackgroundPosition position, BackgroundSize backgroundSize, AbstractLinearGradientBuilder linearGradientBuilder, BlendMode blendMode, BackgroundBox clip, BackgroundBox origin)	Creates a new BackgroundImage instance.
	BackgroundImage(BackgroundImage backgroundImage)	Creates a copy of passed BackgroundImage instance.

Method Summary

Modifier and Type	Method	Description
float[]	calculateBackgroundImageSize(float areaWidth, float areaHeight)	Calculates width and height values for background image with a given area params.
private static BackgroundSize	calculateBackgroundSizeForArea(BackgroundImage image, float areaWidth, float areaHeight)
private static BackgroundSize	createBackgroundSizeWithMaxValueSide(boolean maxWidth)
BackgroundBox	getBackgroundClip()	Gets background-clip.
BackgroundBox	getBackgroundOrigin()	Gets background-origin.
BackgroundPosition	getBackgroundPosition()	Gets background-position.
BackgroundSize	getBackgroundSize()	Gets the background size property.
BlendMode	getBlendMode()	Get the image's blend mode.
PdfFormXObject	getForm()	Gets initial image if it is instanceof PdfFormXObject, otherwise returns null.
PdfImageXObject	getImage()	Gets initial image if it is instanceof PdfImageXObject, otherwise returns null.
float	getImageHeight()	Gets initial image height.
float	getImageWidth()	Gets initial image width.
AbstractLinearGradientBuilder	getLinearGradientBuilder()	Gets linearGradientBuilder.
BackgroundRepeat	getRepeat()	Gets image BackgroundRepeat instance.
boolean	isBackgroundSpecified()	Returns is background specified.
protected float[]	resolveWidthAndHeight(java.lang.Float width, java.lang.Float height, float areaWidth, float areaHeight)	Resolves the final size of the background image in specified area.

Methods inherited from class java.lang.Object

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

Field Detail

PERCENT_VALUE_100

private static final UnitValue PERCENT_VALUE_100

EPS

private static final float EPS

See Also:

Constant Field Values

DEFAULT_BLEND_MODE

private static final BlendMode DEFAULT_BLEND_MODE

image

protected PdfXObject image

linearGradientBuilder

protected AbstractLinearGradientBuilder linearGradientBuilder

blendMode

private BlendMode blendMode

repeat

private final BackgroundRepeat repeat

position

private final BackgroundPosition position

backgroundSize

private final BackgroundSize backgroundSize

backgroundClip

private final BackgroundBox backgroundClip

backgroundOrigin

private final BackgroundBox backgroundOrigin

Constructor Detail

BackgroundImage

public BackgroundImage(BackgroundImage backgroundImage)

Creates a copy of passed BackgroundImage instance.

Parameters:

backgroundImage - BackgroundImage for cloning

BackgroundImage

private BackgroundImage(PdfXObject image,
                        BackgroundRepeat repeat,
                        BackgroundPosition position,
                        BackgroundSize backgroundSize,
                        AbstractLinearGradientBuilder linearGradientBuilder,
                        BlendMode blendMode,
                        BackgroundBox clip,
                        BackgroundBox origin)

Creates a new BackgroundImage instance.

Parameters:

image - background-image property. PdfXObject instance.

repeat - background-repeat property. BackgroundRepeat instance.

position - background-position property. BackgroundPosition instance.

backgroundSize - background-size property. BackgroundSize instance.

linearGradientBuilder - background-image property. AbstractLinearGradientBuilder instance.

blendMode - the image's blend mode. BlendMode instance.

clip - background-clip property. BackgroundBox instance.

origin - background-origin property. BackgroundBox instance.

Method Detail

getImage

public PdfImageXObject getImage()

Gets initial image if it is instanceof PdfImageXObject, otherwise returns null.

Returns:

PdfImageXObject

getForm

public PdfFormXObject getForm()

Gets initial image if it is instanceof PdfFormXObject, otherwise returns null.

Returns:

PdfFormXObject

calculateBackgroundImageSize

public float[] calculateBackgroundImageSize(float areaWidth,
                                            float areaHeight)

Calculates width and height values for background image with a given area params.

Parameters:

areaWidth - width of the area of this images

areaHeight - height of the area of this images

Returns:

array of two float values. NOTE that first value defines width, second defines height

getBackgroundPosition

public BackgroundPosition getBackgroundPosition()

Gets background-position.

Returns:

BackgroundPosition

getLinearGradientBuilder

public AbstractLinearGradientBuilder getLinearGradientBuilder()

Gets linearGradientBuilder.

Returns:

AbstractLinearGradientBuilder

isBackgroundSpecified

public boolean isBackgroundSpecified()

Returns is background specified.

Returns:

true if background is specified, otherwise false

getBackgroundSize

public BackgroundSize getBackgroundSize()

Gets the background size property.

Returns:

BackgroundSize instance

getImageWidth

public float getImageWidth()

Gets initial image width.

Returns:

the initial image width

getImageHeight

public float getImageHeight()

Gets initial image height.

Returns:

the initial image height

getRepeat

public BackgroundRepeat getRepeat()

Gets image BackgroundRepeat instance.

Returns:

the image background repeat

getBlendMode

public BlendMode getBlendMode()

Get the image's blend mode.

Returns:

the BlendMode representation of the image's blend mode

getBackgroundClip

public BackgroundBox getBackgroundClip()

Gets background-clip.

Returns:

BackgroundBox

getBackgroundOrigin

public BackgroundBox getBackgroundOrigin()

Gets background-origin.

Returns:

BackgroundBox

resolveWidthAndHeight

protected float[] resolveWidthAndHeight(java.lang.Float width,
                                        java.lang.Float height,
                                        float areaWidth,
                                        float areaHeight)

Resolves the final size of the background image in specified area.

Parameters:

width - the intrinsic background image width

height - the intrinsic background image height

areaWidth - the area width in which background will be placed

areaHeight - the area height in which background will be placed

Returns:

the final size of the background image

calculateBackgroundSizeForArea

private static BackgroundSize calculateBackgroundSizeForArea(BackgroundImage image,
                                                             float areaWidth,
                                                             float areaHeight)

createBackgroundSizeWithMaxValueSide

private static BackgroundSize createBackgroundSizeWithMaxValueSide(boolean maxWidth)