diff options
Diffstat (limited to 'historic/selection/selection.c')
| -rw-r--r-- | historic/selection/selection.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/historic/selection/selection.c b/historic/selection/selection.c deleted file mode 100644 index 058936fc5..000000000 --- a/historic/selection/selection.c +++ /dev/null @@ -1,237 +0,0 @@ -/* implement copying and pasting in Linux virtual consoles */ -/* Andrew Haylett, 17th June 1993 */ -/* Wed Feb 15 09:33:16 1995, faith@cs.unc.edu changed tty0 to console, since - most systems don't have a tty0 any more. */ - -#include <unistd.h> -#include <stdio.h> -#include <termios.h> -#include <fcntl.h> -#include <signal.h> -#include <errno.h> -#include <sys/kd.h> -#include <sys/ioctl.h> -#include <sys/time.h> - -#include "mouse.h" - -extern int ms_copy_button, ms_paste_button; - -static const int SCALE = 10; -static const long CLICK_INTERVAL = 250; /* msec */ -static const char *console = "/dev/console"; - -typedef enum { character = 0, word = 1, line = 2 } sel_mode; - -static int open_console(const int mode); -static void set_sel(const int xs, const int ys, const int xe, - const int ye, const sel_mode mode); -static void paste(void); -static long interval(const struct timeval *t1, const struct timeval *t2); -static int check_mode(void); - -int -main(int argc, char *argv[]) -{ - struct ms_event ev; - struct winsize win; - struct timeval tv1, tv2; - int xs, ys, xe, ye, x1, y1, fd, clicks = 0; - sel_mode mode; - - fd = open_console(O_RDONLY); - ioctl(fd, TIOCGWINSZ, &win); - close(fd); - if (! win.ws_col || ! win.ws_row) - { - fprintf(stderr, "selection: zero screen dimension, assuming 80x25.\n"); - win.ws_col = 80; - win.ws_row = 25; - } - - ms_params(argc, argv); - - if (ms_init(win.ws_col * SCALE - 1, win.ws_row * SCALE - 1)) - exit(1); - - if (fork() > 0) - exit(0); - setsid(); - - gettimeofday(&tv1, (struct timezone *)NULL); - -restart: - while (1) - { - if (check_mode()) - goto restart; - if (get_ms_event(&ev)) - exit(1); - if (ev.ev_butstate == ms_copy_button) - { - ++clicks; - gettimeofday(&tv2, (struct timezone *)NULL); - xs = ev.ev_x / SCALE + 1; - ys = ev.ev_y / SCALE + 1; - if (interval(&tv1, &tv2) < CLICK_INTERVAL && clicks == 1) - { - mode = word; - set_sel(xs, ys, xs, ys, mode); - } - else if (interval(&tv1, &tv2) < CLICK_INTERVAL && clicks == 2) - { - mode = line; - set_sel(xs, ys, xs, ys, mode); - } - else - { - mode = character; - clicks = 0; - do /* wait for left button up */ - { - if (check_mode()) - goto restart; - if (get_ms_event(&ev)) - exit(1); - } while (ev.ev_butstate); - x1 = y1 = 0; - do /* track start selection until left button down */ - { - xs = ev.ev_x / SCALE + 1; - ys = ev.ev_y / SCALE + 1; - if (xs != x1 || ys != y1) - { - set_sel(xs, ys, xs, ys, mode); - x1 = xs; y1 = ys; - } - if (check_mode()) - goto restart; - if (get_ms_event(&ev)) - exit(1); - } while (ev.ev_butstate != ms_copy_button); - } - x1 = y1 = 0; - gettimeofday(&tv1, (struct timezone *)NULL); - do /* track end selection until left button up */ - { - xe = ev.ev_x / SCALE + 1; - ye = ev.ev_y / SCALE + 1; - if (xe != x1 || ye != y1) - { - set_sel(xs, ys, xe, ye, mode); - x1 = xe; y1 = ye; - } - if (check_mode()) - goto restart; - if (get_ms_event(&ev)) - exit(1); - } while (ev.ev_butstate == ms_copy_button); - } else if (ev.ev_butstate == ms_paste_button) - { /* paste selection */ - paste(); - do /* wait for right button up */ - { - if (check_mode()) - goto restart; - if (get_ms_event(&ev)) - exit(1); - } while (ev.ev_butstate); - gettimeofday(&tv1, (struct timezone *)NULL); - clicks = 0; - } - } -} - -/* We have to keep opening and closing the console because (a) /dev/tty0 - changed its behaviour at some point such that the current VC is fixed - after the open(), rather than being re-evaluated at each write(), and (b) - because we seem to lose our grip on /dev/tty? after someone logs in if - this is run from /etc/rc. */ - -static int -open_console(const int mode) -{ - int fd; - - if ((fd = open(console, mode)) < 0) - { - perror("selection: open_console()"); - exit(1); - } - return fd; -} - -/* mark selected text on screen. */ -static void -set_sel(const int xs, const int ys, - const int xe, const int ye, const sel_mode mode) -{ - unsigned char buf[sizeof(char) + 5 * sizeof(short)]; - unsigned short *arg = (unsigned short *)(buf + 1); - int fd; - - buf[0] = 2; - - arg[0] = xs; - arg[1] = ys; - arg[2] = xe; - arg[3] = ye; - arg[4] = mode; - - fd = open_console(O_WRONLY); - if (ioctl(fd, TIOCLINUX, buf) < 0) - { - perror("selection: ioctl(..., TIOCLINUX, ...)"); - exit(1); - } - close(fd); -} - -/* paste contents of selection buffer into console. */ -static void -paste(void) -{ - char c = 3; - int fd; - - fd = open_console(O_WRONLY); - if (ioctl(fd, TIOCLINUX, &c) < 0) - { - perror("selection: ioctl(..., TIOCLINUX, ...)"); - exit(1); - } - close(fd); -} - -/* evaluate interval between times. */ -static long -interval(const struct timeval *t1, const struct timeval *t2) -{ - return (t2->tv_sec - t1->tv_sec) * 1000 - + (t2->tv_usec - t1->tv_usec) / 1000; -} - -/* Check whether console is in graphics mode; if so, wait until it isn't. */ -static int -check_mode(void) -{ - int fd, ch = 0; - long kd_mode; - - do - { - fd = open_console(O_RDONLY); - if (ioctl(fd, KDGETMODE, &kd_mode) < 0) - { - perror("selection: ioctl(..., KDGETMODE, ...)"); - exit(1); - } - close(fd); - if (kd_mode != KD_TEXT) - { - ++ch; - sleep(2); - } - } while (kd_mode != KD_TEXT); - return (ch > 0); -} |