Colour palette class for indexed colour modes. More...

#include <libvisual/lv_palette.h>

Collaboration diagram for LV::Palette:

Public Member Functions
	Palette ()=default
	Creates a new Palette object.

	Palette (unsigned int ncolors)

	Palette (Palette const &)=default

	Palette (Palette &&palette)

Palette &	operator= (Palette const &rhs)=default

Palette &	operator= (Palette &&rhs)

bool	empty () const

unsigned int	size () const

void	blend (Palette const &src1, Palette const &src2, float rate)
	This function is capable of morphing from one palette to another. More...

void	allocate_colors (unsigned int size)
	Allocate an amount of colors for a VisPalette. More...

Color	color_cycle (float rate)
	Can be used to cycle through the colors of a VisPalette and blend between elements. More...

int	find_color (Color const &color) const

Public Attributes
std::vector< Color >	colors

Detailed Description

Colour palette class for indexed colour modes.

Note: This is currently only used for 8-bit images

Definition at line 46 of file lv_palette.h.

Member Function Documentation

void LV::Palette::allocate_colors ( unsigned int size )

Allocate an amount of colors for a VisPalette.

Parameters

size	Number of colors to allocate

Definition at line 41 of file lv_palette.cpp.

void LV::Palette::blend	(	Palette const &	src1,
		Palette const &	src2,
		float	rate
	)

This function is capable of morphing from one palette to another.

Parameters

src1	Pointer to a VisPalette that acts as the first source for the morph.
src2	Pointer to a VisPalette that acts as the second source for the morph.
rate	Value that sets the rate of the morph, which is valid between 0 and 1.

Definition at line 46 of file lv_palette.cpp.

VisColor LV::Palette::color_cycle ( float rate )

Can be used to cycle through the colors of a VisPalette and blend between elements.

The rate is from 0.0 to number of VisColors in the VisPalette. The VisColor is newly allocated so you have to unref it. The last VisColor in the VisPalette is morphed with the first.

Parameters

rate	Selection of the VisColor from the VisPalette, goes from 0.0 to number of VisColors in the VisPalette and morphs between colors if needed.

Returns: A new Color, possibly a morph between two Colors

Definition at line 58 of file lv_palette.cpp.

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

Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation