Luna/libui/include/ui/Color.h

64 lines
1.8 KiB
C++

#pragma once
#include <luna/Types.h>
namespace ui
{
/**
* @brief A 32-bit ARGB color.
*/
struct Color
{
union {
u32 raw;
u8 colors[4];
};
/**
* @brief Construct a new color from a 32-bit ARGB integer.
*
* @param raw The integer representing the color.
* @return constexpr Color The new color.
*/
static constexpr Color from_u32(u32 raw)
{
return Color { .raw = raw };
}
/**
* @brief Construct a new color from its separate RGBA values (from 0 to 255).
*
* @param red The red value.
* @param green The green value.
* @param blue The blue value.
* @param alpha The alpha value.
* @return constexpr Color The new color.
*/
static constexpr Color from_rgba(u8 red, u8 green, u8 blue, u8 alpha)
{
return Color { .colors = { blue, green, red, alpha } };
}
/**
* @brief Construct a new color from its separate RGB values (from 0 to 255).
*
* @param red The red value.
* @param green The green value.
* @param blue The blue value.
* @return constexpr Color The new color.
*/
static constexpr Color from_rgb(u8 red, u8 green, u8 blue)
{
return from_rgba(red, green, blue, 0xff);
}
};
static constexpr Color WHITE = Color::from_rgb(0xff, 0xff, 0xff);
static constexpr Color BLACK = Color::from_rgb(0x00, 0x00, 0x00);
static constexpr Color BLUE = Color::from_rgb(0x00, 0x00, 0xff);
static constexpr Color GREEN = Color::from_rgb(0x00, 0xff, 0x00);
static constexpr Color RED = Color::from_rgb(0xff, 0x00, 0x00);
static constexpr Color CYAN = Color::from_rgb(0x00, 0xff, 0xff);
};