mirror of
https://github.com/fish-shell/fish-shell
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134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
/** \file output.h
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Generic output functions
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*/
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/**
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Constants for various character classifications. Each character of a command string can be classified as one of the following types.
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*/
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#ifndef FISH_OUTPUT_H
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#define FISH_OUTPUT_H
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#include <stddef.h>
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#include <vector>
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#include "common.h"
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#include "fallback.h"
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#include "color.h"
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/**
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Constants for various colors as used by the set_color function.
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*/
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enum
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{
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FISH_COLOR_BLACK,
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FISH_COLOR_RED,
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FISH_COLOR_GREEN,
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FISH_COLOR_YELLOW,
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FISH_COLOR_BLUE,
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FISH_COLOR_MAGENTA,
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FISH_COLOR_CYAN,
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FISH_COLOR_WHITE,
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/** The default fg color of the terminal */
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FISH_COLOR_NORMAL,
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FISH_COLOR_IGNORE,
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FISH_COLOR_RESET
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};
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/**
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Sets the fg and bg color. May be called as often as you like, since
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if the new color is the same as the previous, nothing will be
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written. Negative values for set_color will also be ignored. Since
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the terminfo string this function emits can potentially cause the
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screen to flicker, the function takes care to write as little as
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possible.
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Possible values for color are any form the FISH_COLOR_* enum,
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FISH_COLOR_IGNORE and FISH_COLOR_RESET. FISH_COLOR_IGNORE will
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leave the color unchanged, and FISH_COLOR_RESET will perform an
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exit_attribute_mode, even if set_color thinks it is already in
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FISH_COLOR_NORMAL mode.
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In order to set the color to normal, three terminfo strings may
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have to be written.
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- First a string to set the color, such as set_a_foreground. This
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is needed because otherwise the previous strings colors might be
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removed as well.
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- After that we write the exit_attribute_mode string to reset all
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color attributes.
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- Lastly we may need to write set_a_background or set_a_foreground
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to set the other half of the color pair to what it should be.
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\param c Foreground color.
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\param c2 Background color.
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*/
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void set_color(rgb_color_t c, rgb_color_t c2);
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/**
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Write specified multibyte string
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*/
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void writembs_check(char *mbs, const char *mbs_name, const char *file, long line);
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#define writembs(mbs) writembs_check((mbs), #mbs, __FILE__, __LINE__)
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/**
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Write a wide character using the output method specified using output_set_writer().
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*/
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int writech(wint_t ch);
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/**
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Write a wide character string to FD 1.
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*/
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void writestr(const wchar_t *str);
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/**
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Return the internal color code representing the specified color
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*/
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rgb_color_t parse_color(const wcstring &val, bool is_background);
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/**
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This is for writing process notification messages. Has to write to
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stdout, so clr_eol and such functions will work correctly. Not an
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issue since this function is only used in interactive mode anyway.
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*/
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int writeb(tputs_arg_t b);
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/**
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Set the function used for writing in move_cursor, writespace and
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set_color and all other output functions in this library. By
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default, the write call is used to give completely unbuffered
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output to stdout.
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*/
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void output_set_writer(int (*writer)(char));
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/**
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Return the current output writer
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*/
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int (*output_get_writer())(char) ;
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/** Set the terminal name */
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void output_set_term(const wcstring &term);
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/** Return the terminal name */
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const wchar_t *output_get_term();
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/** Sets what colors are supported */
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enum
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{
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color_support_term256 = 1 << 0,
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color_support_term24bit = 1 << 1
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};
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typedef unsigned int color_support_t;
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color_support_t output_get_color_support();
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void output_set_color_support(color_support_t support);
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/** Given a list of rgb_color_t, pick the "best" one, as determined by the color support. Returns rgb_color_t::none() if empty */
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rgb_color_t best_color(const std::vector<rgb_color_t> &colors, color_support_t support);
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/* Exported for builtin_set_color's usage only */
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void write_color(rgb_color_t color, bool is_fg);
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unsigned char index_for_color(rgb_color_t c);
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#endif
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