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-rw-r--r--util/alevt/ui.c721
1 files changed, 721 insertions, 0 deletions
diff --git a/util/alevt/ui.c b/util/alevt/ui.c
new file mode 100644
index 0000000..70391c7
--- /dev/null
+++ b/util/alevt/ui.c
@@ -0,0 +1,721 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include "vt.h"
+#include "misc.h"
+#include "xio.h"
+#include "vbi.h"
+#include "fdset.h"
+#include "search.h"
+#include "export.h"
+#include "ui.h"
+
+static void vtwin_event(struct vtwin *w, struct vt_event *ev);
+static void msg(struct vtwin *w, u8 *str, ...);
+static void err(struct vtwin *w, u8 *str, ...);
+
+#define hist(w,o) ((w)->hist + (((w)->hist_top + (o)) & (N_HISTORY-1)))
+
+
+static int inc_hex(int i, int bcd_mode)
+{
+ i++;
+ if (bcd_mode)
+ {
+ if ((i & 0x000f) > 0x0009)
+ i = (i + 0x0010) & 0x0ff0;
+ if ((i & 0x00f0) > 0x090)
+ i = (i + 0x0100) & 0x0f00;
+ if ((i & 0x0f00) > 0x0900)
+ i = (i + 0x1000) & 0xf000;
+ }
+ return i;
+}
+
+
+static int dec_hex(int i, int bcd_mode)
+{
+ i--;
+ if (bcd_mode)
+ {
+ if ((i & 0x000f) > 0x0009)
+ i = (i & 0xfff0) + 0x0009;
+ if ((i & 0x00f0) > 0x0090)
+ i = (i & 0xff00) + 0x0099;
+ if ((i & 0x0f00) > 0x0900)
+ i = (i & 0xf000) + 0x0999;
+ }
+ return i;
+}
+
+
+static void set_title(struct vtwin *w)
+{
+ char buf[32], buf2[32];
+
+ if (w->subno == ANY_SUB)
+ sprintf(buf, "%x", w->pgno);
+ else
+ sprintf(buf, "%x/%x", w->pgno, w->subno);
+ if (w->searching)
+ sprintf(buf2, "(%s)", buf);
+ else
+ sprintf(buf2, "%s", buf);
+ xio_title(w->xw, buf2);
+}
+
+
+static void query_page(struct vtwin *w, int pgno, int subno)
+{
+ w->pgno = pgno;
+ w->subno = subno;
+ w->searching = 1;
+ w->hold = 0; //subno != ANY_SUB;
+ xio_set_concealed(w->xw, w->revealed = 0);
+
+ if (hist(w, 0)->pgno != pgno ||
+ (hist(w,0)->subno == ANY_SUB && subno != ANY_SUB))
+ w->hist_top++;
+ hist(w, 0)->pgno = pgno;
+ hist(w, 0)->subno = subno;
+ hist(w, 1)->pgno = 0; // end marker
+
+ xio_cancel_selection(w->xw);
+ if (vbi_query_page(w->vbi, pgno, subno) == 0)
+ {
+ w->vtp = 0;
+ }
+ set_title(w);
+}
+
+
+static void new_or_query(struct vtwin *w, int pgno, int subno, int new_win)
+{
+ if (new_win)
+ {
+ if (w->child)
+ query_page(w->child, pgno, subno);
+ else
+ vtwin_new(w->xw->xio, w->vbi, 0, w, pgno, subno);
+ }
+ else
+ query_page(w, pgno, subno);
+}
+
+static int _next_pgno(int *arg, struct vt_page *vtp)
+{
+ int pgno = vtp->pgno;
+
+ if (arg[0] == pgno) // want different page
+ return 0;
+ if (arg[1]) // and not a hex page
+ for (; pgno; pgno >>=4)
+ if ((pgno & 15) > 9)
+ return 0;
+ return 1;
+}
+
+
+static int _next_subno(int *arg, struct vt_page *vtp)
+{
+ return vtp->pgno == arg[0]; // only subpages of this page
+}
+
+
+static void do_next_pgno(struct vtwin *w, int dir, int bcd_mode, int subs,
+ int new_win)
+{
+ struct vt_page *vtp;
+ struct vtwin *cw = (new_win && w->child) ? w->child : w;
+ int pgno = cw->pgno;
+ int subno = cw->subno;
+
+ if (w->vbi->cache)
+ {
+ int arg[2];
+ arg[0] = pgno;
+ arg[1] = bcd_mode;
+ if (vtp = w->vbi->cache->op->foreach_pg(w->vbi->cache,
+ pgno, subno, dir, subs ? _next_subno:_next_pgno, &arg))
+ {
+ new_or_query(w, vtp->pgno, subs ? vtp->subno : ANY_SUB, new_win);
+ return;
+ }
+ }
+ err(w, "No page.");
+}
+
+#define notdigit(x) (not isdigit((x)))
+
+
+static int chk_screen_fromto(u8 *p, int x, int *n1, int *n2)
+{
+ p += x;
+
+ if (x >= 0 && x+5 < 42)
+ if (notdigit(p[1]) || notdigit(p[0]))
+ if (isdigit(p[2]))
+ if (p[3] == '/' || p[3] == ':')
+ if (isdigit(p[4]))
+ if (notdigit(p[5]) || notdigit(p[6])) /* p[6] is save here */
+ {
+ *n1 = p[2] % 16;
+ if (isdigit(p[1]))
+ *n1 += p[1] % 16 * 16;
+ *n2 = p[4] % 16;
+ if (isdigit(p[5]))
+ *n2 = *n2 * 16 + p[5] % 16;
+ return 1;
+ }
+ return 0;
+}
+
+
+static int chk_screen_pgno(u8 *p, int x, int *pgno, int *subno)
+{
+ p += x;
+
+ if (x >= 0 && x+4 < 42)
+ if (notdigit(p[0]) && notdigit(p[4]))
+ if (isdigit(p[1]) && isdigit(p[2]) && isdigit(p[3]))
+ {
+ *pgno = p[1] % 16 * 256 + p[2] % 16 * 16 + p[3] % 16;
+ if (*pgno >= 0x100 && *pgno <= 0x999)
+ {
+ *subno = ANY_SUB;
+ if (x+6 < 42)
+ if (p[4] == '.' || p[4] == '/')
+ if (isdigit(p[5]))
+ if (notdigit(p[6]) || notdigit(p[7])) /* p[7] is save here */
+ {
+ *subno = p[5] % 16;
+ if (isdigit(p[6]))
+ *subno = *subno * 16 + p[6] % 16;
+ }
+ // hackhackhack:
+ // pgno followed by start box gets subno 1
+ if (x+4 < 42 && p[4] == 11)
+ *subno = 1;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+
+static void do_screen_pgno(struct vtwin *w, int x, int y, int new_win)
+{
+ u8 buf[42];
+ int n1, n2, i;
+
+ if (x >= 0 && x < 40)
+ {
+ if (xio_get_line(w->xw, y, buf+1) == 0)
+ {
+ buf[0] = buf[41] = ' ';
+ x++;
+
+ for (i = -6; i < 35; i++)
+ {
+ if (w->vtp == 0 || w->vtp->subno != 0)
+ if (chk_screen_fromto(buf, x+i, &n1, &n2))
+ {
+ // subno cycling works wrong with children.
+ // so middle button cycles backwards...
+ if (w->subno != ANY_SUB)
+ n1 = w->subno;
+ n1 = new_win ? dec_hex(n1, 1) : inc_hex(n1, 1);
+ if (n1 < 1)
+ n1 = n2;
+ if (n1 > n2)
+ n1 = 1;
+ new_or_query(w, w->pgno, n1, 0);
+ return;
+ }
+ if (i >= -4)
+ if (chk_screen_pgno(buf, x+i, &n1, &n2))
+ {
+ new_or_query(w, n1, n2, new_win);
+ return;
+ }
+ }
+ }
+ }
+ err(w, "No page.");
+}
+
+
+static void do_flof_pgno(struct vtwin *w, int button, int x, int new_win)
+{
+ struct vt_page *vtp = w->vtp;
+ int lk = 99, i, c;
+
+ if (vtp && vtp->flof)
+ {
+ switch (button)
+ {
+ case 1 ... 3:
+ for (i = 0; i <= x && i < 40; ++i)
+ if ((c = vtp->data[24][i]) < 8) // fg-color code
+ lk = c;
+ lk = "x\0\1\2\3x\3x"[lk]; // color -> link#
+ break;
+ case KEY_F(1): lk = 0; break;
+ case KEY_F(2): lk = 1; break;
+ case KEY_F(3): lk = 2; break;
+ case KEY_F(4): lk = 3; break;
+ case KEY_F(5): lk = 5; break;
+ }
+ if (lk < 6 && (vtp->link[lk].pgno & 0xff) != 0xff)
+ {
+ new_or_query(w, vtp->link[lk].pgno, vtp->link[lk].subno, new_win);
+ return;
+ }
+ }
+ else
+ {
+ switch (button)
+ {
+ case 1 ... 3: lk = x / 8; break;
+ case KEY_F(1): lk = 0; break;
+ case KEY_F(2): lk = 1; break;
+ case KEY_F(3): lk = 2; break;
+ case KEY_F(4): lk = 3; break;
+ case KEY_F(5): lk = 4; break;
+ }
+ switch (lk)
+ {
+ case 0: new_or_query(w, 0x100, ANY_SUB, new_win); return;
+ case 1: do_next_pgno(w, -1, 1, 0, new_win); return;
+ case 2: new_or_query(w, 0x900, ANY_SUB, new_win); return;
+ case 3: do_next_pgno(w, 1, 1, 0, new_win); return;
+ case 4: new_or_query(w, 0x999, ANY_SUB, new_win); return;
+ }
+ }
+ err(w, "No page.");
+}
+
+
+static void do_hist_pgno(struct vtwin *w)
+{
+ if (hist(w, -1)->pgno)
+ {
+ w->hist_top--;
+ query_page(w, hist(w, 0)->pgno, hist(w, 0)->subno);
+ }
+ else
+ err(w, "Empty history.");
+}
+
+
+static void put_head_line(struct vtwin *w, u8 *p)
+{
+ char buf[40];
+
+ if (p == 0)
+ xio_get_line(w->xw, 0, buf);
+ else
+ memcpy(buf + 8, p + 8, 32);
+
+ if (w->subno == ANY_SUB)
+ sprintf(buf, "\2%3x \5\xb7", w->pgno);
+ else
+ sprintf(buf, "\2S%02x \5\xb7", w->subno & 0xff);
+
+ if (w->searching)
+ buf[0] = 1;
+ if (w->hold)
+ buf[4] = 'H';
+ if (w->xw->concealed)
+ buf[6] = '*';
+ buf[7] = 7;
+
+ xio_put_line(w->xw, 0, buf);
+}
+
+
+static void put_menu_line(struct vtwin *w)
+{
+ if (w->status > 0)
+ xio_put_line(w->xw, 24, w->statusline);
+ else if (w->vtp && w->vtp->flof)
+ xio_put_line(w->xw, 24, w->vtp->data[24]);
+ else
+ xio_put_line(w->xw, 24, "\0 100 \4<< \6Help \4>>\0 999 ");
+}
+
+
+static void _msg(struct vtwin *w, u8 *str, va_list args)
+{
+ u8 buf[128];
+ int i;
+
+ i = vsprintf(buf, str, args);
+ if (i > W)
+ i = W;
+ memset(w->statusline, ' ', W);
+ memcpy(w->statusline + (W-i+1)/2, buf, i);
+ w->status = 6;
+ put_menu_line(w);
+}
+
+
+static void msg(struct vtwin *w, u8 *str, ...)
+{
+ va_list args;
+
+ va_start(args, str);
+ _msg(w, str, args);
+ va_end(args);
+}
+
+
+static void err(struct vtwin *w, u8 *str, ...)
+{
+ va_list args;
+
+ va_start(args, str);
+ _msg(w, str, args);
+ va_end(args);
+}
+
+
+static void next_search(struct vtwin *w, int rev)
+{
+ if (w->search)
+ {
+ int pgno = w->pgno;
+ int subno = w->subno;
+ int dir = rev ? -w->searchdir : w->searchdir;
+
+ if (search_next(w->search, &pgno, &subno, dir) == 0)
+ {
+ query_page(w, pgno, subno);
+ if (not w->searching && w->search->len)
+ xio_set_selection(w->xw, w->search->x, w->search->y,
+ w->search->x + w->search->len - 1, w->search->y);
+ return;
+ }
+ else
+ err(w, "Pattern not found.");
+ }
+ else
+ err(w, "No search pattern.");
+}
+
+
+static void start_search(struct vtwin *w, u8 *string)
+{
+ if (not string)
+ return;
+
+ if (*string)
+ {
+ if (w->search)
+ search_end(w->search);
+ w->search = search_start(w->vbi->cache, string);
+ if (w->search == 0)
+ {
+ err(w, "Bad search pattern.");
+ return;
+ }
+ }
+ next_search(w, 0);
+}
+
+
+static void start_save2(struct vtwin *w, u8 *name)
+{
+ if (name && *name)
+ if (export(w->export, w->vtp, name))
+ err(w, export_errstr());
+
+ export_close(w->export);
+ w->export = 0;
+ put_menu_line(w);
+}
+
+
+struct vtwin * vtwin_new(struct xio *xio, struct vbi *vbi, char *geom,
+ struct vtwin *parent, int pgno, int subno)
+{
+ struct vtwin *w;
+
+ if (not(w = malloc(sizeof(*w))))
+ goto fail1;
+
+ if (not (w->xw = xio_open_win(xio, geom)))
+ goto fail2;
+ w->vbi = vbi;
+ w->vtp = 0;
+ w->search = 0;
+ w->export = 0;
+ w->parent = parent;
+ w->child = 0;
+ if (parent && parent->child)
+ fatal("internal error: parent already has a child != 0");
+ if (parent)
+ parent->child = w;
+
+ w->hist_top = 1;
+ hist(w,0)->pgno = 0;
+ hist(w,1)->pgno = 0;
+ w->status = 0;
+ xio_set_handler(w->xw, vtwin_event, w);
+ vbi_add_handler(w->vbi, vtwin_event, w);
+ query_page(w, pgno, subno);
+ return w;
+
+fail2:
+ free(w);
+fail1:
+ return 0;
+}
+
+
+static void vtwin_close(struct vtwin *w)
+{
+ if (w->parent)
+ w->parent->child = w->child;
+ if (w->child)
+ w->child->parent = w->parent;
+
+ if (w->search)
+ search_end(w->search);
+ if (w->export)
+ export_close(w->export);
+
+ vbi_del_handler(w->vbi, vtwin_event, w);
+ xio_close_win(w->xw, 1);
+ free(w);
+}
+
+
+static void vtwin_event(struct vtwin *w, struct vt_event *ev)
+{
+ struct xio_win *xw = w->xw;
+ int i;
+
+ switch (ev->type)
+ {
+ case EV_CLOSE:
+ vtwin_close(w);
+ break;
+
+ case EV_TIMER:
+ if (w->status > 0 && --w->status == 0)
+ put_menu_line(w);
+ break;
+
+ case EV_KEY:
+ {
+ switch (ev->i1)
+ {
+ case '0' ... '9':
+ i = ev->i1 - '0';
+ if (w->pgno >= 0x100)
+ {
+ if (i == 0)
+ break;
+ w->pgno = i;
+ }
+ else
+ {
+ w->pgno = w->pgno * 16 + i;
+ if (w->pgno >= 0x100)
+ query_page(w, w->pgno, ANY_SUB);
+ }
+ break;
+ case 'q':
+ case '\e':
+ vtwin_close(w);
+ break;
+ case 'h':
+ query_page(w, 0x900, ANY_SUB);
+ break;
+ case 'e':
+ if (w->vbi->cache)
+ {
+ i = w->vbi->cache->op->mode(w->vbi->cache,
+ CACHE_MODE_ERC, 0);
+ w->vbi->cache->op->mode(w->vbi->cache,
+ CACHE_MODE_ERC, !i);
+ msg(w, "Error reduction %sabled.", i ? "dis" : "en");
+ }
+ break;
+ case 'o':
+ if (vtwin_new(xw->xio, w->vbi, 0, 0, w->pgno, w->subno) == 0)
+ err(w, "Unable to open new window.");
+ break;
+ case KEY_RIGHT:
+ do_next_pgno(w, 1, not ev->i2, 0, 0);
+ break;
+ case KEY_LEFT:
+ do_next_pgno(w, -1, not ev->i2, 0, 0);
+ break;
+ case KEY_UP:
+ do_next_pgno(w, -1, not ev->i2, 1, 0);
+ break;
+ case KEY_DOWN:
+ do_next_pgno(w, 1, not ev->i2, 1, 0);
+ break;
+ case '\b':
+ do_hist_pgno(w);
+ break;
+ case ' ':
+ w->hold = !w->hold;
+ break;
+ case 'c':
+ vbi_reset(w->vbi);
+ break;
+ case 'i':
+ if (w->vtp && w->vtp->flof &&
+ (w->vtp->link[5].pgno & 0xff) != 0xff)
+ query_page(w, w->vtp->link[5].pgno,
+ w->vtp->link[5].subno);
+ else
+ query_page(w, 0x100, ANY_SUB);
+ break;
+ case 'r':
+ xio_set_concealed(xw, w->revealed = !w->revealed);
+ break;
+ case KEY_F(1) ... KEY_F(5):
+ do_flof_pgno(w, ev->i1, 0, ev->i2);
+ break;
+ case 'n':
+ next_search(w, 0);
+ break;
+ case 'N':
+ next_search(w, 1);
+ break;
+ default:
+ err(w, "Unused key.");
+ break;
+ }
+ break;
+ }
+ case EV_RESET:
+ {
+ if (w->search)
+ search_end(w->search);
+ w->search = 0;
+
+ query_page(w, w->pgno, w->subno);
+ msg(w, "Cache cleared!");
+ break;
+ }
+ case EV_MOUSE:
+ {
+ if (ev->i1 == 3)
+ do_hist_pgno(w);
+ else if (ev->i1 == 5) // wheel mouse
+ do_next_pgno(w, 1, not ev->i2, 0, 0);
+ else if (ev->i1 == 4) // wheel mouse
+ do_next_pgno(w, -1, not ev->i2, 0, 0);
+ else if (ev->i1 == 7) // dual wheel mouse
+ do_next_pgno(w, 1, not ev->i2, 1, 0);
+ else if (ev->i1 == 6) // dual wheel mouse
+ do_next_pgno(w, -1, not ev->i2, 1, 0);
+ else if (ev->i4 == 24)
+ do_flof_pgno(w, ev->i1, ev->i3, ev->i1 == 2);
+ else if (ev->i4 == 0 && ev->i3 < 5)
+ {
+ if (ev->i1 == 1)
+ w->hold = !w->hold;
+ else
+ vtwin_new(xw->xio, w->vbi, 0, 0, w->pgno, w->subno);
+ }
+ else if (ev->i4 == 0 && ev->i3 < 8)
+ {
+ if (ev->i1 == 2 && w->child)
+ w = w->child;
+ xio_set_concealed(w->xw, w->revealed = !w->revealed);
+ }
+ else
+ do_screen_pgno(w, ev->i3, ev->i4, ev->i1 == 2);
+ break;
+ }
+ case EV_PAGE:
+ {
+ struct vt_page *vtp = ev->p1;
+
+ if (0)
+ if (vtp->errors)
+ printf("errors=%4d\n",vtp->errors);
+ if (w->searching || not(w->hold || ev->i1))
+ if (vtp->pgno == w->pgno)
+ if (w->subno == ANY_SUB || vtp->subno == w->subno)
+ {
+ w->searching = 0;
+ w->vtp = vtp;
+ put_head_line(w, vtp->data[0]);
+ for (i = 1; i < 24; ++i)
+ xio_put_line(w->xw, i, vtp->data[i]);
+ put_menu_line(w);
+ set_title(w);
+ }
+ break;
+ }
+ case EV_HEADER:
+ {
+ u8 *p = ev->p1;
+ int hdr_mag = ev->i1 / 256;
+ int flags = ev->i3;
+ int mag = w->pgno;
+ if (mag >= 0x10)
+ mag = mag >> 4;
+ if (mag >= 0x10)
+ mag = mag >> 4;
+ if (flags & PG_OUTOFSEQ)
+ p = 0;
+ else
+ if (~flags & PG_MAGSERIAL)
+ if (mag != hdr_mag)
+ p = 0;
+
+ put_head_line(w, p);
+ break;
+ }
+ case EV_XPACKET:
+ {
+#if 0 /* VPS data (seems to be unused in .de */
+ u8 *p = ev->p1;
+
+ if (ev->i1 == 8 && ev->i2 == 30 && p[0]/2 == 1)
+ {
+ int i;
+ int pil, cni, pty, misc;
+
+ for (i = 7; i < 20; ++i)
+ p[i] = hamm8(p+i, &ev->i3);
+ if (ev->i3 & 0xf000) /* uncorrectable errors */
+ break;
+ cni = p[9] + p[15]/4*16 + p[16]%4*64 + p[10]%4*256
+ + p[16]/4*1024 + p[17]*4096;
+ pty = p[18] + p[19]*16;
+ pil = p[10]/4 + p[11]*4 + p[12]*64 + p[13]*1024
+ + p[14]*16384 + p[15]%4*262144;
+ misc = p[7] + p[8]*16;
+ err(w, "%02x %04x %05x %02x: %.20s", misc, cni, pil, pty, p+20);
+ }
+#endif
+ break;
+ }
+ case EV_ERR:
+ {
+ char *errmsg = ev->p1;
+ if (errmsg != NULL && *errmsg != '\0')
+ {
+ err(w, errmsg);
+ w->status = 30;
+ ev->p1 = NULL;
+ free(errmsg);
+ }
+ break;
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-21 23:52:46 +0000