Gradient

Colour Gradient class.

The colour gradient is defined by a list of colour stops where each stop specifies the colour at a given position along the gradient axis. It maintains a lookup table that is used by the rasterizer.

class Gradient {

this(int lookupLength);

~this();

uint length();

void reset();

uint[] getLookup();

int lookupLength();

void setLookupLength(int len);

Gradient addStop(float pos, uint color);

bool isOpaque();

void initEqualSpaced(T args);

}

Constructors

this this(int lookupLength): Create an empty colour gradient, you can specify the size of the lookuptable

Destructor

~this ~this(): destructor

Members

Functions

addStop Gradient addStop(float pos, uint color): add a color stop, pos will be cliped to 0..1
getLookup uint[] getLookup(): get lookup table, this can cause the lookup table to be recomputed if anything significant has changed.
initEqualSpaced void initEqualSpaced(T args): Initialises the gradient to a sequence of equaly spaced colours.
isOpaque bool isOpaque(): is the gradient fully opaque?
length uint length(): How many colour stops are there?
lookupLength int lookupLength(): get lookup table length
reset void reset(): reset the list of gradient colour stops to empty
setLookupLength void setLookupLength(int len): change lookup table length (8192 max)

Gradient

Constructors

Destructor

Members

Functions

Meta

Source