Package icyllis.modernui.graphics

Class RadialGradient

java.lang.Object

icyllis.modernui.graphics.Shader

icyllis.modernui.graphics.GradientShader

icyllis.modernui.graphics.RadialGradient

public class RadialGradient
extends GradientShader

RadialGradient generates gradient colors linearly interpolated in the radial direction of a circle.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RadialGradient.Builder	Builder pattern of RadialGradient.

Nested classes/interfaces inherited from class icyllis.modernui.graphics.GradientShader

GradientShader.HueInterpolationMethod, GradientShader.InterpolationColorSpace

Nested classes/interfaces inherited from class icyllis.modernui.graphics.Shader

Shader.TileMode

Constructor Summary

Constructors

Constructor	Description
RadialGradient(float centerX, float centerY, float radius, float[] colors, ColorSpace colorSpace, float[] positions, Shader.TileMode tileMode, Matrix localMatrix)	Create a radial gradient shader.
RadialGradient(float centerX, float centerY, float radius, int[] colors, float[] positions, Shader.TileMode tileMode, Matrix localMatrix)	Simplified constructor that takes an array of 0xAARRGGBB colors in sRGB color space.
RadialGradient(float centerX, float centerY, float radius, int centerColor, int edgeColor, Shader.TileMode tileMode, Matrix localMatrix)	Simplified constructor that takes two 0xAARRGGBB colors in sRGB color space.

Method Summary

Modifier and Type	Method	Description
boolean	getLocalMatrix(Matrix localMatrix)	Return true if the shader has a non-identity local matrix.

Methods inherited from class icyllis.modernui.graphics.GradientShader

convertColors

Methods inherited from class icyllis.modernui.graphics.Shader

release

Methods inherited from class java.lang.Object

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

Constructor Details

RadialGradient

public RadialGradient(float centerX,
 float centerY,
 float radius,
 @ColorInt
 int centerColor,
 @ColorInt
 int edgeColor,
 @NonNull
 Shader.TileMode tileMode,
 @Nullable
 Matrix localMatrix)

Simplified constructor that takes two 0xAARRGGBB colors in sRGB color space.

See Also:

• RadialGradient(float, float, float, float[], ColorSpace, float[], TileMode, Matrix)

RadialGradient

public RadialGradient(float centerX,
 float centerY,
 float radius,
 @NonNull @ColorInt
 int[] colors,
 @Nullable
 float[] positions,
 @NonNull
 Shader.TileMode tileMode,
 @Nullable
 Matrix localMatrix)

Simplified constructor that takes an array of 0xAARRGGBB colors in sRGB color space.

See Also:

• RadialGradient(float, float, float, float[], ColorSpace, float[], TileMode, Matrix)

RadialGradient

public RadialGradient(float centerX,
 float centerY,
 float radius,
 @Size(multiple=4L) @NonNull
 float[] colors,
 @Nullable
 ColorSpace colorSpace,
 @Nullable
 float[] positions,
 @NonNull
 Shader.TileMode tileMode,
 @Nullable
 Matrix localMatrix)

Create a radial gradient shader.

The colors array holds repeated R,G,B,A values of source colors to interpolate, they have non-premultiplied alpha and are in the given colorSpace.

The positions array specifies a number of stops, all values are between 0 and 1 and monotonic increasing. Colors will be linearly interpolated in each stop. Null means that they are uniformly distributed. If the first position is not 0 or the last position is not 1, an implicit stop will be added.

The tileMode specifies the behavior when local coords are out of bounds.

The localMatrix specifies an additional local matrix for this gradient, it transforms gradient's local coordinates to geometry's local coordinates, null means identity.

All given arguments will be simplified and copied into the internal shader.

Parameters:

centerX - x-coordinate of the center of the radius

centerY - y-coordinate of the center of the radius

radius - radius of the circle

colors - color array

colorSpace - color space, null will use the default one (sRGB)

positions - position array

tileMode - tile mode

localMatrix - local matrix

Throws:

IllegalArgumentException - NaN, infinity, non-invertible matrix, etc.

Method Details

getLocalMatrix

public boolean getLocalMatrix(@NonNull
 Matrix localMatrix)

Return true if the shader has a non-identity local matrix.

Parameters:

localMatrix - Set to the local matrix of the shader, if the shader's matrix is non-null.

Returns:

true if the shader has a non-identity local matrix