Package com.itextpdf.svg.renderers.impl

Class LinearGradientSvgNodeRenderer

java.lang.Object

com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

com.itextpdf.svg.renderers.impl.AbstractBranchSvgNodeRenderer

com.itextpdf.svg.renderers.impl.AbstractGradientSvgNodeRenderer

com.itextpdf.svg.renderers.impl.LinearGradientSvgNodeRenderer

All Implemented Interfaces:

IBranchSvgNodeRenderer, INoDrawSvgNodeRenderer, ISvgNodeRenderer, ISvgPaintServer

public class LinearGradientSvgNodeRenderer
extends AbstractGradientSvgNodeRenderer

ISvgNodeRenderer implementation for the <linearGradient> tag.

Nested Class Summary

Nested classes/interfaces inherited from class com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

AbstractSvgNodeRenderer.FillProperties, AbstractSvgNodeRenderer.StrokeProperties

Field Summary

Fields

Modifier and Type	Field	Description
private static double	CONVERT_COEFF

Fields inherited from class com.itextpdf.svg.renderers.impl.AbstractBranchSvgNodeRenderer

VIEWBOX_VALUES_NUMBER

Fields inherited from class com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

attributesAndStyles, doFill, doStroke

Constructor Summary

Constructors

Constructor	Description
LinearGradientSvgNodeRenderer()

Method Summary

Modifier and Type	Method	Description
Color	createColor(SvgDrawContext context, Rectangle objectBoundingBox, float objectBoundingBoxMargin, float parentOpacity)	Creates the Color that represents the corresponding paint server for specified object box.
ISvgNodeRenderer	createDeepCopy()	Creates a deep copy of this renderer, including it's subtree of children
private Point[]	getCoordinates(SvgDrawContext context, boolean isObjectBoundingBox)
private AffineTransform	getGradientTransformToUserSpaceOnUse(Rectangle objectBoundingBox, boolean isObjectBoundingBox)
Rectangle	getObjectBoundingBox(SvgDrawContext context)	Calculates the current object bounding box.
protected boolean	isHidden()	Check if this renderer should draw the element based on its attributes (e.g.
private java.util.List<GradientColorStop>	parseStops(float parentOpacity)

Methods inherited from class com.itextpdf.svg.renderers.impl.AbstractGradientSvgNodeRenderer

doDraw, getChildStopRenderers, getGradientTransform, isObjectBoundingBoxUnits, parseSpreadMethod

Methods inherited from class com.itextpdf.svg.renderers.impl.AbstractBranchSvgNodeRenderer

addChild, applyViewBox, calculateAndApplyViewBox, deepCopyChildren, getChildren, postDraw

Methods inherited from class com.itextpdf.svg.renderers.impl.AbstractSvgNodeRenderer

applyFillAndStrokeProperties, applyNonScalingStrokeTransform, calculateViewPortTranslation, canConstructViewPort, canElementFill, deepCopyAttributesAndStyles, doStrokeOrFill, draw, getAttribute, getAttributeMapCopy, getAttributeOrDefault, getCurrentFontSize, getCurrentFontSize, getCurrentViewBox, getParent, getParentClipPath, parseAbsoluteLength, parseHorizontalLength, parseVerticalLength, preDraw, retrieveAlignAndMeet, setAttribute, setAttributesAndStyles, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.itextpdf.svg.renderers.IBranchSvgNodeRenderer

addChild, getChildren

Methods inherited from interface com.itextpdf.svg.renderers.ISvgNodeRenderer

draw, getAttribute, getAttributeMapCopy, getParent, setAttribute, setAttributesAndStyles, setParent

Field Detail

CONVERT_COEFF

private static final double CONVERT_COEFF

See Also:

Constant Field Values

Constructor Detail

LinearGradientSvgNodeRenderer

public LinearGradientSvgNodeRenderer()

Method Detail

createColor

public Color createColor(SvgDrawContext context,
                         Rectangle objectBoundingBox,
                         float objectBoundingBoxMargin,
                         float parentOpacity)

Description copied from interface: ISvgPaintServer

Creates the Color that represents the corresponding paint server for specified object box.

Parameters:

context - the current svg draw context

objectBoundingBox - the coloring object bounding box without any adjustments (additional stroke width or others)

objectBoundingBoxMargin - the objectBoundingBoxMargin of the object bounding box to be colored (for example - the part of stroke width that exceeds the object bounding box, i.e. the half of stroke width value)

parentOpacity - current parent opacity modifier

Returns:

the created color

createDeepCopy

public ISvgNodeRenderer createDeepCopy()

Description copied from interface: ISvgNodeRenderer

Creates a deep copy of this renderer, including it's subtree of children

Specified by:

createDeepCopy in interface ISvgNodeRenderer

Specified by:

createDeepCopy in class AbstractBranchSvgNodeRenderer

Returns:

deep copy of this renderer

getObjectBoundingBox

public Rectangle getObjectBoundingBox(SvgDrawContext context)

Description copied from interface: ISvgNodeRenderer

Calculates the current object bounding box.

Parameters:

context - the current context, for instance it contains current viewport and available font data

Returns:

the Rectangle representing the current object's bounding box, or null if bounding box is undefined

isHidden

protected boolean isHidden()

Description copied from class: AbstractSvgNodeRenderer

Check if this renderer should draw the element based on its attributes (e.g. visibility/display)

Overrides:

isHidden in class AbstractSvgNodeRenderer

Returns:

true if element won't be drawn, false otherwise

parseStops

private java.util.List<GradientColorStop> parseStops(float parentOpacity)

getGradientTransformToUserSpaceOnUse

private AffineTransform getGradientTransformToUserSpaceOnUse(Rectangle objectBoundingBox,
                                                             boolean isObjectBoundingBox)

getCoordinates

private Point[] getCoordinates(SvgDrawContext context,
                               boolean isObjectBoundingBox)