/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2008-2009 Ed Schouten * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include #include #if defined(__FreeBSD__) #include #elif defined(__linux__) #include #else #include #endif #include static tf_bell_t test_bell; static tf_cursor_t test_cursor; static tf_putchar_t test_putchar; static tf_fill_t test_fill; static tf_copy_t test_copy; static tf_param_t test_param; static tf_respond_t test_respond; static teken_funcs_t tf = { .tf_bell = test_bell, .tf_cursor = test_cursor, .tf_putchar = test_putchar, .tf_fill = test_fill, .tf_copy = test_copy, .tf_param = test_param, .tf_respond = test_respond, }; struct pixel { teken_char_t c; teken_attr_t a; }; #define NCOLS 80 #define NROWS 24 static struct pixel buffer[NCOLS][NROWS]; static int ptfd; static void printchar(const teken_pos_t *p) { int y, x, attr = 0; struct pixel *px; char str[5] = { 0 }; assert(p->tp_row < NROWS); assert(p->tp_col < NCOLS); px = &buffer[p->tp_col][p->tp_row]; /* No need to print right hand side of CJK character manually. */ if (px->a.ta_format & TF_CJK_RIGHT) return; /* Convert Unicode to UTF-8. */ if (px->c < 0x80) { str[0] = px->c; } else if (px->c < 0x800) { str[0] = 0xc0 | (px->c >> 6); str[1] = 0x80 | (px->c & 0x3f); } else if (px->c < 0x10000) { str[0] = 0xe0 | (px->c >> 12); str[1] = 0x80 | ((px->c >> 6) & 0x3f); str[2] = 0x80 | (px->c & 0x3f); } else { str[0] = 0xf0 | (px->c >> 18); str[1] = 0x80 | ((px->c >> 12) & 0x3f); str[2] = 0x80 | ((px->c >> 6) & 0x3f); str[3] = 0x80 | (px->c & 0x3f); } if (px->a.ta_format & TF_BOLD) attr |= A_BOLD; if (px->a.ta_format & TF_UNDERLINE) attr |= A_UNDERLINE; if (px->a.ta_format & TF_BLINK) attr |= A_BLINK; if (px->a.ta_format & TF_REVERSE) attr |= A_REVERSE; bkgdset(attr | COLOR_PAIR(teken_256to8(px->a.ta_fgcolor) + 8 * teken_256to8(px->a.ta_bgcolor))); getyx(stdscr, y, x); mvaddstr(p->tp_row, p->tp_col, str); move(y, x); } static void test_bell(void *s __unused) { beep(); } static void test_cursor(void *s __unused, const teken_pos_t *p) { move(p->tp_row, p->tp_col); } static void test_putchar(void *s __unused, const teken_pos_t *p, teken_char_t c, const teken_attr_t *a) { buffer[p->tp_col][p->tp_row].c = c; buffer[p->tp_col][p->tp_row].a = *a; printchar(p); } static void test_fill(void *s, const teken_rect_t *r, teken_char_t c, const teken_attr_t *a) { teken_pos_t p; /* Braindead implementation of fill() - just call putchar(). */ for (p.tp_row = r->tr_begin.tp_row; p.tp_row < r->tr_end.tp_row; p.tp_row++) for (p.tp_col = r->tr_begin.tp_col; p.tp_col < r->tr_end.tp_col; p.tp_col++) test_putchar(s, &p, c, a); } static void test_copy(void *s __unused, const teken_rect_t *r, const teken_pos_t *p) { int nrow, ncol, x, y; /* Has to be signed - >= 0 comparison */ teken_pos_t d; /* * Copying is a little tricky. We must make sure we do it in * correct order, to make sure we don't overwrite our own data. */ nrow = r->tr_end.tp_row - r->tr_begin.tp_row; ncol = r->tr_end.tp_col - r->tr_begin.tp_col; if (p->tp_row < r->tr_begin.tp_row) { /* Copy from top to bottom. */ if (p->tp_col < r->tr_begin.tp_col) { /* Copy from left to right. */ for (y = 0; y < nrow; y++) { d.tp_row = p->tp_row + y; for (x = 0; x < ncol; x++) { d.tp_col = p->tp_col + x; buffer[d.tp_col][d.tp_row] = buffer[r->tr_begin.tp_col + x][r->tr_begin.tp_row + y]; printchar(&d); } } } else { /* Copy from right to left. */ for (y = 0; y < nrow; y++) { d.tp_row = p->tp_row + y; for (x = ncol - 1; x >= 0; x--) { d.tp_col = p->tp_col + x; buffer[d.tp_col][d.tp_row] = buffer[r->tr_begin.tp_col + x][r->tr_begin.tp_row + y]; printchar(&d); } } } } else { /* Copy from bottom to top. */ if (p->tp_col < r->tr_begin.tp_col) { /* Copy from left to right. */ for (y = nrow - 1; y >= 0; y--) { d.tp_row = p->tp_row + y; for (x = 0; x < ncol; x++) { d.tp_col = p->tp_col + x; buffer[d.tp_col][d.tp_row] = buffer[r->tr_begin.tp_col + x][r->tr_begin.tp_row + y]; printchar(&d); } } } else { /* Copy from right to left. */ for (y = nrow - 1; y >= 0; y--) { d.tp_row = p->tp_row + y; for (x = ncol - 1; x >= 0; x--) { d.tp_col = p->tp_col + x; buffer[d.tp_col][d.tp_row] = buffer[r->tr_begin.tp_col + x][r->tr_begin.tp_row + y]; printchar(&d); } } } } } static void test_param(void *s __unused, int cmd, unsigned int value) { switch (cmd) { case TP_SHOWCURSOR: curs_set(value); break; case TP_KEYPADAPP: keypad(stdscr, value ? TRUE : FALSE); break; } } static void test_respond(void *s __unused, const void *buf, size_t len) { write(ptfd, buf, len); } static void redraw_border(void) { unsigned int i; for (i = 0; i < NROWS; i++) mvaddch(i, NCOLS, '|'); for (i = 0; i < NCOLS; i++) mvaddch(NROWS, i, '-'); mvaddch(NROWS, NCOLS, '+'); } static void redraw_all(void) { teken_pos_t tp; for (tp.tp_row = 0; tp.tp_row < NROWS; tp.tp_row++) for (tp.tp_col = 0; tp.tp_col < NCOLS; tp.tp_col++) printchar(&tp); redraw_border(); } int main(int argc __unused, char *argv[] __unused) { struct winsize ws; teken_t t; teken_pos_t tp; fd_set rfds; char b[256]; ssize_t bl; const int ccolors[8] = { COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE }; int i, j; setlocale(LC_CTYPE, "UTF-8"); tp.tp_row = ws.ws_row = NROWS; tp.tp_col = ws.ws_col = NCOLS; switch (forkpty(&ptfd, NULL, NULL, &ws)) { case -1: perror("forkpty"); exit(1); case 0: setenv("TERM", "xterm", 1); setenv("LC_CTYPE", "UTF-8", 0); execlp("zsh", "-zsh", NULL); execlp("bash", "-bash", NULL); execlp("sh", "-sh", NULL); _exit(1); } teken_init(&t, &tf, NULL); teken_set_winsize(&t, &tp); initscr(); raw(); start_color(); for (i = 0; i < 8; i++) for (j = 0; j < 8; j++) init_pair(i + 8 * j, ccolors[i], ccolors[j]); redraw_border(); FD_ZERO(&rfds); for (;;) { FD_SET(STDIN_FILENO, &rfds); FD_SET(ptfd, &rfds); if (select(ptfd + 1, &rfds, NULL, NULL, NULL) < 0) { if (errno == EINTR) { redraw_all(); refresh(); continue; } break; } if (FD_ISSET(STDIN_FILENO, &rfds)) { bl = read(STDIN_FILENO, b, sizeof b); if (bl <= 0) break; write(ptfd, b, bl); } if (FD_ISSET(ptfd, &rfds)) { bl = read(ptfd, b, sizeof b); if (bl <= 0) break; teken_input(&t, b, bl); refresh(); } } endwin(); return (0); }