SkColor4f Reference === # Color4f # Struct SkColor4f ## Member SkColor4f members may be read and written directly without using a member function.
Topic Description
fA alpha component
fB blue component
fG green component
fR red component
Each component is stored as a 32-bit single precision floating point float value. All values are allowed, but only the range from zero to one is meaningful. Each component is independent of the others; fA Alpha is not Premultiplied with fG green, fB blue, or fR red. Values smaller than zero or larger than one are allowed. Values out of range may be used with Blend Mode so that the final component is in range. ## Overview
Topic Description
Functions global and class member functions
Members member values
Operators operator overloading methods
## Operator SkColor4f operators inline class member functions with arithmetic equivalents.
Topic Description
operator!=(const SkColor4f& other) const compares colors for inequality
operator==(const SkColor4f& other) const compares Color4f for equality
## Member Function SkColor4f member functions read and modify the structure properties.
Topic Description
FromColor sets components from Color
Pin sets components to valid range
pin sets components to valid range
premul returns Premultiplied color; internal use only
toSkColor returns closest Color
vec returns array of components
### Members
Type Name Description
float fR Single precision float for red ranges from no red (0.0) to full red (1.0).
float fG Single precision float for green ranges from no green (0.0) to full green (1.0).
float fB Single precision float for blue ranges from no blue (0.0) to full blue (1.0).
float fA Single precision float for Alpha ranges from no Alpha (0.0) to full Alpha (1.0).
## operator== 
bool operator==(const SkColor4f& other) _const
Compares Color4f with other, and returns true if all components are equivalent. ### Parameters
other Color4f to compare
### Return Value true if Color4f equals other ### Example
#### Example Output ~~~~ colorRed == colorNamedRed ~~~~
### See Also operator!=(const SkColor4f& other) const --- ## operator!= 
bool operator!=(const SkColor4f& other) _const
Compares Color4f with other, and returns true if all components are not equivalent. ### Parameters
other Color4f to compare
### Return Value true if Color4f is not equal to other ### Example
#### Example Output ~~~~ colorGray != colorNamedGray ~~~~
### See Also operator==(const SkColor4f& other) const --- ## vec 
const float* vec() const
Returns Color4f components as a read-only array. ### Return Value components as read-only array ### Example
#### Example Output ~~~~ red=0.0578054 green=0.246201 blue=0.603827 alpha=0.533333 [0]=0.0578054 [1]=0.246201 [2]=0.603827 [3]=0.533333 ~~~~
### See Also SkColor4f --- 
float* vec()
Returns Color4f components as a writable array. ### Return Value components as writable array ### Example
#### Example Output ~~~~ red=0.0578054 green=0.246201 blue=0.603827 alpha=0.533333 [0]=0.0578054 [1]=0.246201 [2]=0.603827 [3]=1 ~~~~
### See Also SkColor4f --- ## Pin 
static SkColor4f Pin(float r, float g, float b, float a)
Constructs and returns Color4f with each component pinned from zero to one. ### Parameters
r red component
g green component
b blue component
a Alpha component
### Return Value Color4f with valid components ### Example
### See Also pin FromColor --- ## FromColor 
static SkColor4f FromColor(SkColor)
Converts to closest Color4f. ### Parameters
SkColor Color with Alpha, red, blue, and green components
### Return Value Color4f equivalent ### Example
#### Example Output ~~~~ red=0.0742136 green=0.130136 blue=0.318547 alpha=0.168627 red=77 green=101 blue=153 alpha=43 ~~~~
### See Also toSkColor --- ## toSkColor 
SkColor toSkColor() const
Converts to closest SkColor. ### Return Value closest Color ### Example
#### Example Output ~~~~ red=75 green=101 blue=153 alpha=43 red=0.0703601 green=0.130136 blue=0.318547 alpha=0.168627 ~~~~
### See Also FromColor --- ## pin 
SkColor4f pin() const
Returns Color4f with all components in the range from zero to one. ### Return Value Color4f with valid components ### Example
### See Also Pin --- ## premul 
SkPM4f premul() const
### Return Value Premultiplied color --- # Struct SkPM4f