ifndef SASS_FN_COLORS_H define SASS_FN_COLORS_H

include “fn_utils.hpp”

namespace Sass {

namespace Functions {

  // macros for common ranges (u mean unsigned or upper, r for full range)
  #define DARG_U_FACT(argname) get_arg_r(argname, env, sig, pstate, traces, - 0.0, 1.0) // double
  #define DARG_R_FACT(argname) get_arg_r(argname, env, sig, pstate, traces, - 1.0, 1.0) // double
  #define DARG_U_BYTE(argname) get_arg_r(argname, env, sig, pstate, traces, - 0.0, 255.0) // double
  #define DARG_R_BYTE(argname) get_arg_r(argname, env, sig, pstate, traces, - 255.0, 255.0) // double
  #define DARG_U_PRCT(argname) get_arg_r(argname, env, sig, pstate, traces, - 0.0, 100.0) // double
  #define DARG_R_PRCT(argname) get_arg_r(argname, env, sig, pstate, traces, - 100.0, 100.0) // double

  // macros for color related inputs (rbg and alpha/opacity values)
  #define COLOR_NUM(argname) color_num(argname, env, sig, pstate, traces) // double
  #define ALPHA_NUM(argname) alpha_num(argname, env, sig, pstate, traces) // double

  extern Signature rgb_sig;
  extern Signature rgba_4_sig;
  extern Signature rgba_2_sig;
  extern Signature red_sig;
  extern Signature green_sig;
  extern Signature blue_sig;
  extern Signature mix_sig;
  extern Signature hsl_sig;
  extern Signature hsla_sig;
  extern Signature hue_sig;
  extern Signature saturation_sig;
  extern Signature lightness_sig;
  extern Signature adjust_hue_sig;
  extern Signature lighten_sig;
  extern Signature darken_sig;
  extern Signature saturate_sig;
  extern Signature desaturate_sig;
  extern Signature grayscale_sig;
  extern Signature complement_sig;
  extern Signature invert_sig;
  extern Signature alpha_sig;
  extern Signature opacity_sig;
  extern Signature opacify_sig;
  extern Signature fade_in_sig;
  extern Signature transparentize_sig;
  extern Signature fade_out_sig;
  extern Signature adjust_color_sig;
  extern Signature scale_color_sig;
  extern Signature change_color_sig;
  extern Signature ie_hex_str_sig;

  BUILT_IN(rgb);
  BUILT_IN(rgba_4);
  BUILT_IN(rgba_2);
  BUILT_IN(red);
  BUILT_IN(green);
  BUILT_IN(blue);
  BUILT_IN(mix);
  BUILT_IN(hsl);
  BUILT_IN(hsla);
  BUILT_IN(hue);
  BUILT_IN(saturation);
  BUILT_IN(lightness);
  BUILT_IN(adjust_hue);
  BUILT_IN(lighten);
  BUILT_IN(darken);
  BUILT_IN(saturate);
  BUILT_IN(desaturate);
  BUILT_IN(grayscale);
  BUILT_IN(complement);
  BUILT_IN(invert);
  BUILT_IN(alpha);
  BUILT_IN(opacify);
  BUILT_IN(transparentize);
  BUILT_IN(adjust_color);
  BUILT_IN(scale_color);
  BUILT_IN(change_color);
  BUILT_IN(ie_hex_str);

}

}

endif