iomenu

interactive text selection menu
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commit 32c00d932198ce81decc5b864da82bee5a482d26
parent e58594b7646d9c29a192174f194359b039001909
Author: Josuah Demangeonā  ā µ <mail@josuah.net>
Date:   Sat, 18 Mar 2017 13:05:53 +0100

working without scrolling

Diffstat:
Miomenu.c | 54++++++++++++++++++++++++++++++------------------------
1 file changed, 30 insertions(+), 24 deletions(-)

diff --git a/iomenu.c b/iomenu.c @@ -162,13 +162,28 @@ matching_next(size_t pos) } -void -print_line(size_t pos, const size_t cols) +size_t +print_string(char *str, size_t limit, int current) { - fprintf(stderr, pos == current ? - "\n\033[30;47m\033[K%s\033[m" : "\n\033[K%s", - linev[pos]->text - ); + size_t i, col = 1; + + if (col >= limit) + return 0; + + fputs(current ? "\033[30;47m" : "", stderr); + fputs(opt_lines ? "\033[K " : " ", stderr); + + for (i = 0; str[i] && col < limit; i++, col++) + fputc(str[i], stderr); + + if (col < limit) { + fputc(' ', stderr); + col++; + } + + fputs("\033[m", stderr); + + return col; } @@ -179,7 +194,8 @@ print_lines(size_t count, size_t cols) for (size_t i = offset; printed < count && i < linec; i++) { if (linev[i]->match) { - print_line(i, cols); + fputc('\n', stderr); + print_string(linev[i]->text, cols, i == current); printed++; } } @@ -189,27 +205,15 @@ print_lines(size_t count, size_t cols) } -int -print_column(size_t pos, size_t col, size_t cols) -{ - fputs(pos == current ? "\033[30;47m " : " ", stderr); - - for (size_t i = 0; col + i < cols && linev[pos]->text[i]; i++) - fputc(linev[pos]->text[i], stderr); - - fputs(pos == current ? " \033[m" : " ", stderr); - - return col; -} - - void print_columns(size_t cols) { size_t col = 20; - for (size_t i = offset; col < cols && i < linec; i++) - col = print_column(i, col, cols); + for (size_t i = offset; col < cols && i < linec; i++) { + if (linev[i]->match) + col += print_string(linev[i]->text, cols - col, i == current); + } } @@ -222,7 +226,7 @@ print_prompt(size_t cols) for (size_t i = 0; i < limit; i++) fputc(' ', stderr); - fprintf(stderr, "\r\033[1m%s%s\033[m", opt_prompt, input); + fprintf(stderr, "\r%s %s", opt_prompt, input); } @@ -237,6 +241,8 @@ print_screen(int tty_fd) count = MIN(opt_lines, w.ws_row - 2); + fputs("\r\033[K", stderr); + if (opt_lines) { print_lines(count, w.ws_col); fprintf(stderr, "\033[%ldA", count);