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114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
#include "internal.h"
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#include <curses.h>
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#ifdef USE_DEFLATE
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#include <libdeflate.h>
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#else
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#include <zlib.h>
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#endif
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// only invoked without suppress banners flag. prints various warnings based on
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// the environment / terminal definition. returns the number of lines printed.
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static int
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init_banner_warnings(const notcurses* nc, fbuf* f, const char* clreol){
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term_fg_palindex(nc, f, nc->tcache.caps.colors <= 88 ? 1 : 0xcb);
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if(!notcurses_canutf8(nc)){
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fbuf_puts(f, clreol);
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fbuf_puts(f, " Warning! Encoding is not UTF-8; output may be degraded." NL);
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}
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if(!get_escape(&nc->tcache, ESCAPE_HPA)){
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fbuf_puts(f, clreol);
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fbuf_puts(f, " Warning! No absolute horizontal placement." NL);
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}
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return 0;
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}
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// unless the suppress_banner flag was set, print some version information and
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// (if applicable) warnings to ttyfp. we are not yet on the alternate screen.
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int init_banner(const notcurses* nc, fbuf* f){
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const char* clreol = get_escape(&nc->tcache, ESCAPE_EL);
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if(clreol == NULL){
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clreol = "";
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}
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if(!(nc->flags & NCOPTION_SUPPRESS_BANNERS)){
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term_fg_palindex(nc, f, 50 % nc->tcache.caps.colors);
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char* osver = notcurses_osversion();
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fbuf_printf(f, "%snotcurses %s on %s %s%s(%s)" NL,
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clreol, notcurses_version(),
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nc->tcache.termname ? nc->tcache.termname : "?",
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nc->tcache.termversion ? nc->tcache.termversion : "",
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nc->tcache.termversion ? " " : "", osver ? osver : "unknown");
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free(osver);
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term_fg_palindex(nc, f, nc->tcache.caps.colors <= 256 ?
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14 % nc->tcache.caps.colors : 0x2080e0);
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if(nc->tcache.cellpxy && nc->tcache.cellpxx){
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fbuf_printf(f, "%s%d rows (%dpx) %d cols (%dpx) %dx%d ",
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clreol,
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nc->stdplane->leny, nc->tcache.cellpxy,
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nc->stdplane->lenx, nc->tcache.cellpxx,
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nc->stdplane->leny * nc->tcache.cellpxy,
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nc->stdplane->lenx * nc->tcache.cellpxx);
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}else{
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fbuf_printf(f, "%d rows %d cols ",
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nc->stdplane->leny, nc->stdplane->lenx);
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}
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if(nc->tcache.caps.rgb && get_escape(&nc->tcache, ESCAPE_SETAF)){
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term_fg_rgb8(&nc->tcache, f, 0xe0, 0x60, 0x60);
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fbuf_putc(f, 'r');
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term_fg_rgb8(&nc->tcache, f, 0x60, 0xe0, 0x60);
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fbuf_putc(f, 'g');
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term_fg_rgb8(&nc->tcache, f, 0x20, 0x80, 0xff);
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fbuf_putc(f, 'b');
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term_fg_palindex(nc, f, nc->tcache.caps.colors <= 256 ?
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14 % nc->tcache.caps.colors : 0x2080e0);
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fbuf_putc(f, '+');
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}
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// we want the terminfo version, which is tied to ncurses
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const char* ncursesver = curses_version();
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const char* ncver = strchr(ncursesver, ' ');
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ncver = ncver ? ncver + 1 : ncursesver;
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#ifdef USE_DEFLATE
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fbuf_printf(f, "%u colors" NL "%s%s%s (%s)" NL "%sterminfo %s libdeflate %s GPM %s" NL,
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nc->tcache.caps.colors, clreol,
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#else
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fbuf_printf(f, "%u colors" NL "%s%s%s (%s)" NL "%sterminfo %s zlib %s GPM %s" NL,
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nc->tcache.caps.colors, clreol,
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#endif
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#ifdef __clang__
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"", // name is contained in __VERSION__
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#else
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#ifdef __GNUC__
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"gcc-",
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#else
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#error "Unknown compiler"
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#endif
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#endif
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__VERSION__,
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#ifdef __BYTE_ORDER__
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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"LE",
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#else
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"BE",
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#endif
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#else
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#error "No __BYTE_ORDER__ definition"
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#endif
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clreol, ncver,
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#ifdef USE_DEFLATE
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LIBDEFLATE_VERSION_STRING,
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#else
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ZLIB_VERSION,
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#endif
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gpm_version());
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fbuf_puts(f, clreol); // for ncvisual banner
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ncvisual_printbanner(f);
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init_banner_warnings(nc, f, clreol);
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const char* esc;
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if( (esc = get_escape(&nc->tcache, ESCAPE_SGR0)) ||
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(esc = get_escape(&nc->tcache, ESCAPE_OP))){
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fbuf_emit(f, esc);
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}
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}
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return 0;
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}
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