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Eli Zaretskii authored
on character terminals: * dispextern.h (FACE_TTY_DEFAULT_FG_COLOR) (FACE_TTY_DEFAULT_BG_COLOR): New macros. * xfaces.c (Qunspecified_fg, Qunspecified_bg): New variables. (syms_of_xfaces): Initialize and staticpro them. (tty_defined_color): If the color name is unspecified-fg or unspecified-bg, return FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR, respectively, as the pixel value. (tty_color_name): If the color pixel value is either FACE_TTY_DEFAULT_FG_COLOR or FACE_TTY_DEFAULT_BG_COLOR, return Qunspecified_fg or Qunspecified_bg, respectively. (Finternal_set_lisp_face_attribute): Allow values Qunspecified_fg and Qunspecified_bg for foreground and background colors. (realize_default_face): If the foreground and background colors are not specified, default to Qunspecified_fg and Qunspecified_bg. (realize_tty_face): By default, set the face colors to FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR. [MSDOS]: Handle FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR when face colors are not defined. Reverse the colors if the default colors were reversed. * dispnew.c (init_display): Initialize the frame pixels of the initial frame to FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR. * term.c (turn_on_face): If the default fore- and background colors are reversed, enter inverse video mode. Don't send color escape sequences for unspecified foreground and background colors. (turn_off_face): Handle unspecified-fg and unspecified-bg colors. * dosfns.c (unspecified_colors): New variable. (msdos_stdcolor_idx): Handle unspecified-fg and unspecified-bg color names, return FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR, respectively. (msdos_stdcolor_name): Handle FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR, return Qunspecified_fg and Qunspecified_bg, respectively. * msdos.c (IT_set_face): Support FACE_TTY_DEFAULT_FG_COLOR and FACE_TTY_DEFAULT_BG_COLOR as pixel values. * faces.el (face-read-integer, read-face-attribute) (color-defined-p, color-values): Allow color values unspecified-fg and unspecified-bg, handle them as unspecified.
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