synfig::Color Class Reference

#include <color.h>

Public Types
enum	BlendMethod {   BLEND_COMPOSITE = 0, BLEND_STRAIGHT = 1, BLEND_ONTO = 13, BLEND_STRAIGHT_ONTO = 21,   BLEND_BEHIND = 12, BLEND_SCREEN = 16, BLEND_OVERLAY = 20, BLEND_HARD_LIGHT = 17,   BLEND_MULTIPLY = 6, BLEND_DIVIDE = 7, BLEND_ADD = 4, BLEND_SUBTRACT = 5,   BLEND_DIFFERENCE = 18, BLEND_BRIGHTEN = 2, BLEND_DARKEN = 3, BLEND_COLOR = 8,   BLEND_HUE = 9, BLEND_SATURATION = 10, BLEND_LUMINANCE = 11, BLEND_ALPHA_BRIGHTEN = 14,   BLEND_ALPHA_DARKEN = 15, BLEND_ALPHA_OVER = 19, BLEND_END = 22, BLEND_BY_LAYER = 999 }
typedef ColorReal	value_type

Public Member Functions
const String	get_string (void) const
Color &	operator+= (const Color &rhs)
Color &	operator-= (const Color &rhs)
Color &	operator*= (const float &rhs)
Color &	operator/= (const float &rhs)
Color	operator+ (const Color &rhs) const
Color	operator- (const Color &rhs) const
Color	operator* (const float &rhs) const
Color	operator/ (const float &rhs) const
bool	operator== (const Color &rhs) const
bool	operator!= (const Color &rhs) const
Color	operator- () const
Color	operator~ () const
	Effectively 1.0-color.
bool	is_valid () const
Color	premult_alpha () const
Color	demult_alpha () const
	Color ()
	Color (const value_type &f)
	Color (int f)
	Color (const value_type &R, const value_type &G, const value_type &B, const value_type &A=1)
	Color (const Color &c, const value_type &A)
	Color (const Color &c)
	Copy constructor.
	Color (const CairoColor &c)
	Convert from CairoColor to Color.
const value_type &	get_r () const
	Copy constructor.
const value_type &	get_g () const
	Returns the GREEN component.
const value_type &	get_b () const
	Returns the BLUE component.
const value_type &	get_a () const
	Returns the amount of opacity (alpha)
const value_type &	get_alpha () const
	Synonym for get_a().
const String	get_hex () const
	Returns the color as a 6 character hex sting.
void	set_hex (String &hex)
	Sets the color's R, G, and B from a 3 or 6 character hex string.
Color &	set_r (const value_type &x)
	Sets the RED component to x.
Color &	set_g (const value_type &x)
	Sets the GREEN component to x.
Color &	set_b (const value_type &x)
	Sets the BLUE component to x.
Color &	set_a (const value_type &x)
	Sets the opacity (alpha) to x.
Color &	set_alpha (const value_type &x)
	Synonym for set_a().
float	get_y () const
	Returns color's luminance.
float	get_u () const
	Returns U component of chromanance.
float	get_v () const
	Returns V component of chromanance.
float	get_s () const
	Returns the color's saturation.
Color &	set_yuv (const float &y, const float &u, const float &v)
	Sets the luminance (y) and chromanance (u and v)
Color &	set_y (const float &y)
	Sets color luminance.
Color &	set_u (const float &u)
	Set U component of chromanance.
Color &	set_v (const float &v)
	Set V component of chromanance.
Color &	set_uv (const float &u, const float &v)
	Set the U and V components of chromanance.
Color &	set_s (const float &x)
	Sets the color's saturation.
Angle	get_hue () const
	Returns the hue of the chromanance.
Angle	get_uv_angle () const
	Synonym for get_hue().
Color &	set_hue (const Angle &theta)
	Sets the color's hue.
Color &	set_uv_angle (const Angle &theta)
	Synonym for set_hue().
Color &	rotate_uv (const Angle &theta)
	Rotates the chromanance vector by amount specified by theta.
Color &	set_yuv (const float &y, const float &s, const Angle &theta)
	Sets the luminance (y) and chromanance (s and theta).
Color	clamped () const
	Clamps a color so that its values are in range. Ignores attempting to visualize negative colors.
Color	clamped_negative () const
	Clamps a color so that its values are in range.

Static Public Member Functions
static ColorReal	hex2real (String s)
	Converts a 2 character hex string s (00-ff) into a ColorReal (0.0-1.0)
static const String	real2hex (ColorReal c)
	Converts a ColorReal c (0.0-1.0) into a 2 character hex string (00-ff)
static Color	YUV (const float &y, const float &u, const float &v, const value_type &a=1)
	YUV Color constructor.
static Color	YUV (const float &y, const float &s, const Angle &theta, const value_type &a=1)
	YUV color constructor where the chroma is in the saturation/hue form.
static Color	blend (Color a, Color b, float amount, BlendMethod type=BLEND_COMPOSITE)
static bool	is_onto (BlendMethod x)
static bool	is_straight (BlendMethod x)
	a blending method is considered 'straight' if transparent pixels in the upper layer can affect the result of the blend
static Color	alpha ()
	Preset Color Constructors.
static Color	black ()
	Preset Color Constructors.
static Color	white ()
	Preset Color Constructors.
static Color	gray ()
	Preset Color Constructors.
static Color	magenta ()
	Preset Color Constructors.
static Color	red ()
	Preset Color Constructors.
static Color	green ()
	Preset Color Constructors.
static Color	blue ()
	Preset Color Constructors.
static Color	cyan ()
	Preset Color Constructors.
static Color	yellow ()
	Preset Color Constructors.

Static Public Attributes
static const value_type	ceil = 1
static const value_type	floor = 0

Detailed Description

\ ARGB 128 bits Color class implementation Future optimizations: lookup table for sqrt()?

Member Typedef Documentation

typedef ColorReal synfig::Color::value_type

Member Enumeration Documentation

enum synfig::Color::BlendMethod

Todo:

This needs to be documented further.

Enumerator:

BLEND_COMPOSITE	Color A is composited onto B (Taking A's alpha into account)
BLEND_STRAIGHT	Straight linear interpolation from A->B (Alpha ignored)
BLEND_ONTO	Similar to BLEND_COMPOSITE, except that B's alpha is maintained.
BLEND_STRAIGHT_ONTO	Deprecated: Todo: This needs to be documented further.
BLEND_BEHIND	Similar to BLEND_COMPOSITE, except that B is composited onto A.
BLEND_SCREEN	Todo: This needs to be documented further.
BLEND_OVERLAY	Todo: This needs to be documented further.
BLEND_HARD_LIGHT	Todo: This needs to be documented further.
BLEND_MULTIPLY	Simple A*B.
BLEND_DIVIDE	Simple B/A.
BLEND_ADD	Simple A+B.
BLEND_SUBTRACT	Simple A-B.
BLEND_DIFFERENCE	Simple |A-B|.
BLEND_BRIGHTEN	If composite is brighter than B, use composite. B otherwise.
BLEND_DARKEN	If composite is darker than B, use composite. B otherwise.
BLEND_COLOR	Preserves the U and V channels of color A.
BLEND_HUE	Preserves the angle of the UV vector of color A.
BLEND_SATURATION	Preserves the magnitude of the UV Vector of color A.
BLEND_LUMINANCE	Preserves the Y channel of color A.
BLEND_ALPHA_BRIGHTEN	Deprecated: If A is less opaque than B, use A
BLEND_ALPHA_DARKEN	Deprecated: If A is more opaque than B, use B
BLEND_ALPHA_OVER	Deprecated: multiply alphas and then straight blends using the amount
BLEND_END
BLEND_BY_LAYER

Constructor & Destructor Documentation

synfig::Color::Color ( )

inline

Referenced by alpha(), black(), blue(), cyan(), demult_alpha(), gray(), green(), magenta(), operator*(), operator+(), operator-(), operator/(), operator~(), premult_alpha(), red(), white(), yellow(), and YUV().

synfig::Color::Color ( const value_type &  f )

inline

synfig::Color::Color ( int  f )

inline

synfig::Color::Color ( const value_type &  R, const value_type &  G, const value_type &  B, const value_type &  A = 1  )

inline

Parameters

R	Red
G	Green
B	Blue
A	Opacity(alpha)

synfig::Color::Color ( const Color &  c, const value_type &  A  )

inline

Parameters

c	Source for color components
A	Opacity(alpha)

synfig::Color::Color ( const Color &  c )

inline

Copy constructor.

synfig::Color::Color ( const CairoColor &  c )

inline

Convert from CairoColor to Color.

References ceil, synfig::CairoColor::ceil, floor, synfig::CairoColor::floor, synfig::CairoColor::get_a(), synfig::CairoColor::get_b(), synfig::CairoColor::get_g(), synfig::CairoColor::get_r(), set_a(), set_b(), set_g(), and set_r().

Member Function Documentation

const String Color::get_string

(

void

)

const

Color & synfig::Color::operator+= ( const Color &  rhs )

inline

Color & synfig::Color::operator-= ( const Color &  rhs )

inline

Color & synfig::Color::operator*= ( const float &  rhs )

inline

Color & synfig::Color::operator/= ( const float &  rhs )

inline

Color synfig::Color::operator+ ( const Color &  rhs ) const

inline

References Color().

Color synfig::Color::operator- ( const Color &  rhs ) const

inline

References Color().

Color synfig::Color::operator* ( const float &  rhs ) const

inline

References Color().

Color synfig::Color::operator/ ( const float &  rhs ) const

inline

References Color().

bool synfig::Color::operator== ( const Color &  rhs ) const

inline

bool synfig::Color::operator!= ( const Color &  rhs ) const

inline

Color synfig::Color::operator- ( ) const

inline

References Color().

Color synfig::Color::operator~ ( ) const

inline

Effectively 1.0-color.

References Color(), and f.

bool synfig::Color::is_valid ( ) const

inline

References isnan.

Color synfig::Color::premult_alpha ( ) const

inline

References Color().

Referenced by synfig::Gradient::operator()().

Color synfig::Color::demult_alpha ( ) const

inline

References alpha(), and Color().

const value_type& synfig::Color::get_r ( ) const

inline

Copy constructor.

Returns the RED component

Referenced by synfig::Layer_SolidColor::accelerated_cairorender(), SimpleCircle::accelerated_cairorender(), CheckerBoard::accelerated_cairorender(), Rectangle::accelerated_cairorender(), synfig::Layer_Shape::accelerated_cairorender(), Layer_Freetype::accelerated_cairorender(), synfig::CairoColor::CairoColor(), clamped(), clamped_negative(), synfig::Color2PixelFormat(), color_neg_flip(), Circle::compile_gradient(), synfig::ColorPrep::cook(), encode_canvas(), encode_color(), yuv::end_frame(), exr_trgt::end_scanline(), imagemagick_mptr::get_frame(), get_u(), get_v(), get_y(), synfig::ValueNode_Scale::operator()(), and Blur::operator()().

const value_type& synfig::Color::get_g ( ) const

inline

Returns the GREEN component.

Referenced by synfig::Layer_SolidColor::accelerated_cairorender(), SimpleCircle::accelerated_cairorender(), CheckerBoard::accelerated_cairorender(), Rectangle::accelerated_cairorender(), synfig::Layer_Shape::accelerated_cairorender(), Layer_Freetype::accelerated_cairorender(), synfig::CairoColor::CairoColor(), clamped(), clamped_negative(), synfig::Color2PixelFormat(), color_neg_flip(), Circle::compile_gradient(), synfig::ColorPrep::cook(), encode_canvas(), encode_color(), yuv::end_frame(), exr_trgt::end_scanline(), imagemagick_mptr::get_frame(), get_u(), get_v(), get_y(), synfig::ValueNode_Scale::operator()(), and Blur::operator()().

const value_type& synfig::Color::get_b ( ) const

inline

Returns the BLUE component.

Referenced by synfig::Layer_SolidColor::accelerated_cairorender(), SimpleCircle::accelerated_cairorender(), CheckerBoard::accelerated_cairorender(), Rectangle::accelerated_cairorender(), synfig::Layer_Shape::accelerated_cairorender(), Layer_Freetype::accelerated_cairorender(), synfig::CairoColor::CairoColor(), clamped(), clamped_negative(), synfig::Color2PixelFormat(), color_neg_flip(), Circle::compile_gradient(), synfig::ColorPrep::cook(), encode_canvas(), encode_color(), yuv::end_frame(), exr_trgt::end_scanline(), imagemagick_mptr::get_frame(), get_u(), get_v(), get_y(), synfig::ValueNode_Scale::operator()(), and Blur::operator()().

const value_type& synfig::Color::get_a ( ) const

inline

Returns the amount of opacity (alpha)

Referenced by synfig::Layer_SolidColor::accelerated_cairorender(), LumaKey::accelerated_cairorender(), SimpleCircle::accelerated_cairorender(), CheckerBoard::accelerated_cairorender(), Rectangle::accelerated_cairorender(), Layer_Bevel::accelerated_cairorender(), synfig::Layer_Shape::accelerated_cairorender(), Layer_Freetype::accelerated_cairorender(), SuperSample::accelerated_render(), Layer_Shade::accelerated_render(), Layer_Bevel::accelerated_render(), synfig::CairoColor::CairoColor(), synfig::cairorender(), clamped(), clamped_negative(), synfig::Color2PixelFormat(), color_neg_flip(), Circle::compile_gradient(), synfig::ColorPrep::cook(), encode_canvas(), encode_color(), exr_trgt::end_scanline(), synfig::Palette::find_closest(), get_alpha(), LumaKey::get_color(), Layer_Shade::get_color(), Layer_Bevel::get_color(), imagemagick_mptr::get_frame(), Rectangle::get_full_bounding_rect(), Circle::get_full_bounding_rect(), synfig::Layer_SolidColor::hit_check(), synfig::Layer_Shape::hit_check(), Rectangle::is_solid_color(), Blur::operator()(), synfig::Palette::Palette(), synfig::parametric_render(), synfig::render(), synfig::render_threaded(), synfig::Layer_SolidColor::set_param(), Layer_Shade::set_param(), synfig::Layer_Shape::set_param(), and Layer_Freetype::set_param().

const value_type& synfig::Color::get_alpha ( ) const

inline

Synonym for get_a().

See Also

get_a()

References get_a().

ColorReal Color::hex2real ( String  s )

static

Converts a 2 character hex string s (00-ff) into a ColorReal (0.0-1.0)

Referenced by synfig::CairoColor::hex2char().

const String Color::real2hex ( ColorReal  c )

static

Converts a ColorReal c (0.0-1.0) into a 2 character hex string (00-ff)

References f.

Referenced by synfig::CairoColor::char2hex(), and get_hex().

const String synfig::Color::get_hex ( ) const

inline

Returns the color as a 6 character hex sting.

Copy constructor.

References real2hex().

void Color::set_hex

(

String &

hex

)

Sets the color's R, G, and B from a 3 or 6 character hex string.

Referenced by synfig::CairoColor::set_hex().

Color& synfig::Color::set_r ( const value_type &  x )

inline

Sets the RED component to x.

Referenced by clamped(), clamped_tangent< Color >(), Color(), color_neg_flip(), synfig::ColorPrep::cook(), yuv::end_frame(), exr_mptr::get_frame(), synfig::Palette::load_from_file(), synfig::ValueNode_Composite::operator()(), synfig::ValueNode_Scale::operator()(), Blur::operator()(), synfig::PixelFormat2Color(), png_trgt_spritesheet::read_png_file(), set_yuv(), and synfig::CairoColor::set_yuv().

Color& synfig::Color::set_g ( const value_type &  x )

inline

Sets the GREEN component to x.

Referenced by clamped(), clamped_tangent< Color >(), Color(), color_neg_flip(), synfig::ColorPrep::cook(), yuv::end_frame(), exr_mptr::get_frame(), synfig::Palette::load_from_file(), synfig::ValueNode_Composite::operator()(), synfig::ValueNode_Scale::operator()(), Blur::operator()(), synfig::PixelFormat2Color(), png_trgt_spritesheet::read_png_file(), set_yuv(), and synfig::CairoColor::set_yuv().

Color& synfig::Color::set_b ( const value_type &  x )

inline

Sets the BLUE component to x.

Referenced by clamped(), clamped_tangent< Color >(), Color(), color_neg_flip(), synfig::ColorPrep::cook(), yuv::end_frame(), exr_mptr::get_frame(), synfig::Palette::load_from_file(), synfig::ValueNode_Composite::operator()(), synfig::ValueNode_Scale::operator()(), Blur::operator()(), synfig::PixelFormat2Color(), png_trgt_spritesheet::read_png_file(), set_yuv(), and synfig::CairoColor::set_yuv().

Color& synfig::Color::set_a ( const value_type &  x )

inline

Sets the opacity (alpha) to x.

Referenced by Layer_Shade::accelerated_cairorender(), LumaKey::accelerated_cairorender(), Layer_Bevel::accelerated_cairorender(), SuperSample::accelerated_render(), Layer_Shade::accelerated_render(), LumaKey::accelerated_render(), Layer_Bevel::accelerated_render(), clamped(), clamped_tangent< Color >(), Color(), synfig::Layer_Shape::feather_cairo_surface(), LumaKey::get_color(), Layer_Shade::get_color(), Layer_Bevel::get_color(), exr_mptr::get_frame(), synfig::Palette::load_from_file(), synfig::ValueNode_Composite::operator()(), synfig::PixelFormat2Color(), png_trgt_spritesheet::read_png_file(), set_alpha(), synfig::Layer_SolidColor::set_param(), Layer_Shade::set_param(), synfig::Layer_Shape::set_param(), and Layer_Freetype::set_param().

Color& synfig::Color::set_alpha ( const value_type &  x )

inline

Synonym for set_a().

See Also

set_a()

References set_a().

float synfig::Color::get_y ( ) const

inline

Returns color's luminance.

References synfig::EncodeYUV, get_b(), get_g(), and get_r().

Referenced by LumaKey::accelerated_cairorender(), synfig::Color2PixelFormat(), yuv::end_frame(), synfig::Palette::find_closest(), LumaKey::get_color(), luma_less_than(), set_u(), set_uv(), and set_v().

float synfig::Color::get_u ( ) const

inline

Returns U component of chromanance.

References synfig::EncodeYUV, get_b(), get_g(), and get_r().

Referenced by yuv::end_frame(), synfig::Palette::find_closest(), get_hue(), get_s(), rotate_uv(), set_s(), set_v(), and set_y().

float synfig::Color::get_v ( ) const

inline

Returns V component of chromanance.

References synfig::EncodeYUV, get_b(), get_g(), and get_r().

Referenced by yuv::end_frame(), synfig::Palette::find_closest(), get_hue(), get_s(), rotate_uv(), set_s(), set_u(), and set_y().

float synfig::Color::get_s ( ) const

inline

Returns the color's saturation.

This is is the magnitude of the U and V components.

See Also

set_s()

References get_u(), and get_v().

Referenced by set_hue().

Color & synfig::Color::set_yuv ( const float &  y, const float &  u, const float &  v  )

inline

Sets the luminance (y) and chromanance (u and v)

References synfig::DecodeYUV, set_b(), set_g(), and set_r().

Referenced by synfig::PixelFormat2Color(), set_u(), set_uv(), set_v(), set_y(), and set_yuv().

Color & synfig::Color::set_y ( const float &  y )

inline

Sets color luminance.

References get_u(), get_v(), and set_yuv().

Referenced by LumaKey::accelerated_cairorender(), LumaKey::accelerated_render(), and LumaKey::get_color().

Color & synfig::Color::set_u ( const float &  u )

inline

Set U component of chromanance.

References get_v(), get_y(), and set_yuv().

Color & synfig::Color::set_v ( const float &  v )

inline

Set V component of chromanance.

References get_u(), get_y(), and set_yuv().

Color & synfig::Color::set_uv ( const float &  u, const float &  v  )

inline

Set the U and V components of chromanance.

References get_y(), and set_yuv().

Referenced by Julia::get_color(), rotate_uv(), set_hue(), and set_s().

Color & synfig::Color::set_s ( const float &  x )

inline

Sets the color's saturation.

See Also

get_s()

References get_u(), get_v(), and set_uv().

Color synfig::Color::YUV ( const float &  y, const float &  u, const float &  v, const value_type &  a = 1  )

inlinestatic

YUV Color constructor.

References Color().

Referenced by synfig::ValueNode_RadialComposite::operator()().

Angle synfig::Color::get_hue ( ) const

inline

Returns the hue of the chromanance.

This is the angle of the U and V components.

See Also

set_hue()

References get_u(), and get_v().

Referenced by get_uv_angle().

Angle synfig::Color::get_uv_angle ( ) const

inline

Synonym for get_hue().

See Also

get_hue()

References get_hue().

Color & synfig::Color::set_hue ( const Angle &  theta )

inline

Sets the color's hue.

See Also

get_hue()

References get_s(), and set_uv().

Referenced by set_uv_angle().

Color & synfig::Color::set_uv_angle ( const Angle &  theta )

inline

Synonym for set_hue().

See Also

set_hue()

References set_hue().

Color & synfig::Color::rotate_uv ( const Angle &  theta )

inline

Rotates the chromanance vector by amount specified by theta.

References get_u(), get_v(), and set_uv().

Referenced by Julia::get_color().

Color & synfig::Color::set_yuv ( const float &  y, const float &  s, const Angle &  theta  )

inline

Sets the luminance (y) and chromanance (s and theta).

Parameters

y	Luminance
s	Saturation
theta	Hue

References set_yuv().

Color synfig::Color::YUV ( const float &  y, const float &  s, const Angle &  theta, const value_type &  a = 1  )

inlinestatic

YUV color constructor where the chroma is in the saturation/hue form.

Parameters

y	Luminance
s	Saturation
theta	Hue
a	Opacity (alpha)

References Color().

Color Color::clamped

(

)

const

Clamps a color so that its values are in range. Ignores attempting to visualize negative colors.

References get_a(), get_b(), get_g(), get_r(), isnan, set_a(), set_b(), set_g(), and set_r().

Referenced by Layer_Shade::accelerated_cairorender(), LumaKey::accelerated_cairorender(), synfig::Layer_ColorCorrect::accelerated_cairorender(), synfig::cairorender(), yuv::end_frame(), synfig::Layer_Shape::feather_cairo_surface(), synfig::parametric_render(), synfig::render(), synfig::render_threaded(), and synfig::CairoColor::set_hex().

Color Color::clamped_negative

(

)

const

Clamps a color so that its values are in range.

References get_a(), get_b(), get_g(), get_r(), and isnan.

Referenced by Julia::get_color().

static Color synfig::Color::alpha ( )

inlinestatic

Preset Color Constructors.

References Color().

Referenced by synfig::Layer_MeshTransform::accelerated_render(), synfig::Layer_SphereDistort::accelerated_render(), demult_alpha(), synfig::Layer_Bitmap::get_color(), synfig::Layer_SphereDistort::get_color(), synfig::Layer_Shape::get_color(), synfig::Layer_PasteCanvas::get_color(), synfig::ColorPrep::uncook(), synfig::ValueNode_Repeat_Gradient::ValueNode_Repeat_Gradient(), and synfig::ValueNode_Stripes::ValueNode_Stripes().

static Color synfig::Color::black ( )

inlinestatic

Preset Color Constructors.

References Color().

Referenced by synfig::Palette::Palette(), and synfig::ValueNode_Stripes::ValueNode_Stripes().

static Color synfig::Color::white ( )

inlinestatic

Preset Color Constructors.

References Color().

Referenced by synfig::Layer_MeshTransform::accelerated_render(), and synfig::Palette::Palette().

static Color synfig::Color::gray ( )

inlinestatic

Preset Color Constructors.

References Color(), and f.

static Color synfig::Color::magenta ( )

inlinestatic

Preset Color Constructors.

References Color().

static Color synfig::Color::red ( )

inlinestatic

Preset Color Constructors.

References Color().

static Color synfig::Color::green ( )

inlinestatic

Preset Color Constructors.

References Color().

static Color synfig::Color::blue ( )

inlinestatic

Preset Color Constructors.

References Color().

static Color synfig::Color::cyan ( )

inlinestatic

Preset Color Constructors.

References Color().

static Color synfig::Color::yellow ( )

inlinestatic

Preset Color Constructors.

References Color().

Color Color::blend ( Color  a, Color  b, float  amount, Color::BlendMethod  type = BLEND_COMPOSITE  )

static

References COLOR_EPSILON.

Referenced by synfig::Layer_Shape::accelerated_render(), synfig::Target_Scanline::add_frame(), synfig::blendfunc_COLOR(), synfig::blendfunc_HUE(), synfig::blendfunc_LUMINANCE(), synfig::blendfunc_SATURATION(), synfig::Layer_Duplicate::get_color(), synfig::Layer_SolidColor::get_color(), synfig::Layer_Bitmap::get_color(), synfig::Layer_Shape::get_color(), synfig::Layer_PasteCanvas::get_color(), and synfig::Target_Scanline::render().

static bool synfig::Color::is_onto ( BlendMethod  x )

inlinestatic

References BLEND_ADD, BLEND_BRIGHTEN, BLEND_COLOR, BLEND_DARKEN, BLEND_DIFFERENCE, BLEND_DIVIDE, BLEND_HARD_LIGHT, BLEND_HUE, BLEND_LUMINANCE, BLEND_MULTIPLY, BLEND_ONTO, BLEND_OVERLAY, BLEND_SATURATION, BLEND_SCREEN, BLEND_STRAIGHT_ONTO, and BLEND_SUBTRACT.

Referenced by synfig::Layer_PasteCanvas::accelerated_render(), synfig::Layer_Composite::get_full_bounding_rect(), synfig::Layer_PasteCanvas::get_full_bounding_rect(), and synfig::Layer_Shape::hit_check().

static bool synfig::Color::is_straight ( BlendMethod  x )

inlinestatic

a blending method is considered 'straight' if transparent pixels in the upper layer can affect the result of the blend

References BLEND_ALPHA_BRIGHTEN, BLEND_STRAIGHT, and BLEND_STRAIGHT_ONTO.

Referenced by synfig::Layer_PasteCanvas::accelerated_render().

Member Data Documentation

const Color::value_type Color::ceil = 1

static

Referenced by synfig::CairoColor::CairoColor(), and Color().

const Color::value_type Color::floor = 0

static

Referenced by Color().

---

The documentation for this class was generated from the following files:

• color/color.h
• color.cpp
• color.hpp
• color.h