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File include/brisk/graphics/Gradients.hpp

ColorStop class

ColorStop

Represents a color stop in a gradient.

position variable (ColorStop::position)

float position

The position of the color stop within the gradient, ranging from 0.0 to 1.0.

color variable (ColorStop::color)

ColorW color

The color associated with this color stop.

GradientType enum

enum class GradientType : uint8_t

Enumeration for different types of gradients.

Linear enumerator (GradientType::Linear)

A linear gradient.

Radial enumerator (GradientType::Radial)

A radial gradient.

Angle enumerator (GradientType::Angle)

An angular (conic) gradient.

Reflected enumerator (GradientType::Reflected)

A reflected gradient.

ColorStopArray typedef

ColorStopArray = SmallVector<ColorStop, 2>

A small vector type for storing an array of color stops.

gradientMaxStops variable

constexpr inline size_t gradientMaxStops = 24

The maximum number of color stops allowed in a gradient.
Note Must match the value in Shader

Gradient class

Gradient

Represents a gradient for rendering.

GradientData class

GradientData

Struct for storing gradient data.

GradientData function (GradientData::GradientData)

explicit GradientData(const Gradient &gradient)

Constructs GradientData from a Gradient object.
Param gradient The gradient from which to construct the data.

operator() function (GradientData::operator())

ColorF operator()(float x) const

Gets the color at a specified position.
Param x The position (between 0.0 and 1.0) to query.
Returns The color at the specified position in the gradient with premultiplied alpha.

GradientResource class

GradientResource

Represents a resource associated with a gradient.

id variable (GradientResource::id)

uint64_t id

Unique identifier for the gradient resource.

data variable (GradientResource::data)

GradientData data

The gradient data.

makeGradient function

inline Rc<GradientResource>
makeGradient(const GradientData &data)

Creates a new gradient resource.
Param data The gradient data to associate with the resource.
Returns A reference-counted pointer to the newly created GradientResource.

Gradient class

Gradient

Represents a gradient for rendering.

Gradient function (Gradient::Gradient)

explicit Gradient(GradientType type)

Constructs a gradient of a specified type.
Param type The type of the gradient.

explicit Gradient(GradientType type, PointF startPoint,
                  PointF endPoint)

Constructs a gradient of a specified type between two points.
Param type The type of the gradient.
Param startPoint The starting point of the gradient.
Param endPoint The ending point of the gradient.

explicit Gradient(GradientType type, PointF startPoint,
                  PointF endPoint,
                  ColorStopArray colorStops)

Constructs a gradient with color stops.
Param type The type of the gradient.
Param startPoint The starting point of the gradient.
Param endPoint The ending point of the gradient.
Param colorStops Array of color stops.

explicit Gradient(GradientType type, PointF startPoint,
                  PointF endPoint, ColorW startColor,
                  ColorW endColor)

Constructs a gradient with start and end colors.
Param type The type of the gradient.
Param startPoint The starting point of the gradient.
Param endPoint The ending point of the gradient.
Param startColor The starting color.
Param endColor The ending color.

getType function (Gradient::getType)

GradientType getType() const noexcept

Gets the type of the gradient.
Returns The gradient type.

getStartPoint function (Gradient::getStartPoint)

PointF getStartPoint() const

Gets the starting point of the gradient.
Returns The starting point of the gradient.

setStartPoint function (Gradient::setStartPoint)

void setStartPoint(PointF pt)

Sets the starting point of the gradient.
Param pt The new starting point.

getEndPoint function (Gradient::getEndPoint)

PointF getEndPoint() const

Gets the ending point of the gradient.
Returns The ending point of the gradient.

setEndPoint function (Gradient::setEndPoint)

void setEndPoint(PointF pt)

Sets the ending point of the gradient.
Param pt The new ending point.

addStop function (Gradient::addStop)

void addStop(float position, ColorW color)

Adds a color stop to the gradient.
Param position The position of the color stop (between 0.0 and 1.0).
Param color The color of the stop.

void addStop(ColorStop colorStop)

Adds a color stop to the gradient.
Param colorStop The color stop to add.

colorStops function (Gradient::colorStops)

const ColorStopArray &colorStops() const

Gets the array of color stops defined in the gradient.
Returns A reference to the array of color stops.

rasterize function (Gradient::rasterize)

Rc<GradientResource> rasterize() const

Rasterizes the gradient into a GradientResource.
Returns A reference-counted pointer to the rasterized gradient resource.

m_type variable (Gradient::m_type)

GradientType m_type

The type of the gradient.

m_startPoint variable (Gradient::m_startPoint)

PointF m_startPoint

The starting point of the gradient.

m_endPoint variable (Gradient::m_endPoint)

PointF m_endPoint

The ending point of the gradient.

m_colorStops variable (Gradient::m_colorStops)

ColorStopArray m_colorStops

The color stops for the gradient.

LinearGradient class

LinearGradient

LinearGradient function (LinearGradient::LinearGradient)

explicit LinearGradient()

Constructs an empty linear gradient.

explicit LinearGradient(PointF startPoint, PointF endPoint)

Constructs a linear gradient between two points.
Param startPoint The starting point of the gradient.
Param endPoint The ending point of the gradient.

explicit LinearGradient(PointF startPoint, PointF endPoint,
                        ColorStopArray colorStops)

Constructs a linear gradient with color stops.
Param startPoint The starting point of the gradient.
Param endPoint The ending point of the gradient.
Param colorStops Array of color stops.

explicit LinearGradient(PointF startPoint, PointF endPoint,
                        ColorW startColor, ColorW endColor)

Constructs a linear gradient with start and end colors.
Param startPoint The starting point of the gradient.
Param endPoint The ending point of the gradient.
Param startColor The starting color.
Param endColor The ending color.

RadialGradient class

RadialGradient

RadialGradient function (RadialGradient::RadialGradient)

explicit RadialGradient()

Constructs an empty radial gradient.

explicit RadialGradient(PointF point, float radius)

Constructs a radial gradient with a center point and radius.
Param point The center point of the gradient.
Param radius The radius of the gradient.

explicit RadialGradient(PointF point, float radius,
                        ColorStopArray colorStops)

Constructs a radial gradient with color stops.
Param point The center point of the gradient.
Param radius The radius of the gradient.
Param colorStops Array of color stops.

explicit RadialGradient(PointF point, float radius,
                        ColorW startColor, ColorW endColor)

Constructs a radial gradient with start and end colors.
Param point The center point of the gradient.
Param radius The radius of the gradient.
Param startColor The starting color.
Param endColor The ending color.

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