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Rev 1307 Rev 1308
Line 243... Line 243...
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    *uidirtyto = 0xff;
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    *uidirtyto = 0xff;
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  }
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  }
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}
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}
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static void cursor_right(struct linedb *db, unsigned char *cursorposx, unsigned char *cursorposy, unsigned char screenw, unsigned char screenh, unsigned char *uidirtyfrom, unsigned char *uidirtyto) {
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  if (db->cursor->len > db->xoffset + *cursorposx) {
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    if (*cursorposx < screenw - 2) {
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      *cursorposx += 1;
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    } else {
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      db->xoffset += 1;
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      *uidirtyfrom = 0;
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      *uidirtyto = 0xff;
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    }
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  } else {
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    cursor_down(db, cursorposy, screenh, uidirtyfrom, uidirtyto);
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    cursor_home(db, cursorposx, uidirtyfrom, uidirtyto);
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  }
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}
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static void del(struct linedb *db, unsigned char cursorposx, unsigned char cursorposy, unsigned char *uidirtyfrom, unsigned char *uidirtyto) {
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static void del(struct linedb *db, unsigned char cursorposx, unsigned char cursorposy, unsigned char *uidirtyfrom, unsigned char *uidirtyto) {
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  if (cursorposx + db->xoffset < db->cursor->len) {
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  if (cursorposx + db->xoffset < db->cursor->len) {
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    _fmemmove(db->cursor->payload + cursorposx + db->xoffset, db->cursor->payload + cursorposx + db->xoffset + 1, db->cursor->len - cursorposx - db->xoffset);
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    _fmemmove(db->cursor->payload + cursorposx + db->xoffset, db->cursor->payload + cursorposx + db->xoffset + 1, db->cursor->len - cursorposx - db->xoffset);
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    db->cursor->len -= 1; /* do this AFTER memmove so the copy includes the nul terminator */
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    db->cursor->len -= 1; /* do this AFTER memmove so the copy includes the nul terminator */
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    *uidirtyfrom = cursorposy;
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    *uidirtyfrom = cursorposy;
Line 407... Line 423...
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    } else if (k == 0x148) { /* up */
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    } else if (k == 0x148) { /* up */
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      cursor_up(&db, &cursorposy, &uidirtyfrom, &uidirtyto);
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      cursor_up(&db, &cursorposy, &uidirtyfrom, &uidirtyto);
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    } else if (k == 0x14D) { /* right */
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    } else if (k == 0x14D) { /* right */
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      if (db.cursor->len > db.xoffset + cursorposx) {
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        if (cursorposx < screenw - 2) {
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          cursorposx++;
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        } else {
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          db.xoffset++;
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          uidirtyfrom = 0;
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          uidirtyto = 0xff;
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        }
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      } else {
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        cursor_down(&db, &cursorposy, screenh, &uidirtyfrom, &uidirtyto);
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      cursor_right(&db, &cursorposx, &cursorposy, screenw, screenh, &uidirtyfrom, &uidirtyto);
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        cursor_home(&db, &cursorposx, &uidirtyfrom, &uidirtyto);
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      }
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    } else if (k == 0x14B) { /* left */
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    } else if (k == 0x14B) { /* left */
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      cursor_left(&db, &cursorposx, &cursorposy, screenw, &uidirtyfrom, &uidirtyto);
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      cursor_left(&db, &cursorposx, &cursorposy, screenw, &uidirtyfrom, &uidirtyto);
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    } else if (k == 0x149) { /* pgup */
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    } else if (k == 0x149) { /* pgup */
Line 464... Line 469...
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      del(&db, cursorposx, cursorposy, &uidirtyfrom, &uidirtyto);
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      del(&db, cursorposx, cursorposy, &uidirtyfrom, &uidirtyto);
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    } else if (k == 0x008) { /* BKSPC */
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    } else if (k == 0x008) { /* BKSPC */
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      bkspc(&db, &cursorposx, &cursorposy, screenw, &uidirtyfrom, &uidirtyto);
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      bkspc(&db, &cursorposx, &cursorposy, screenw, &uidirtyfrom, &uidirtyto);
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    } else if ((k >= 0x20) && (k <= 0xff)) { /* "normal" character */
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      struct line far *n;
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      n = _frealloc(db.cursor, sizeof(struct line) + db.cursor->len);
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      if (n != NULL) {
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        unsigned short off = db.xoffset + cursorposx;
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        if (n->prev) n->prev->next = n;
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        if (n->next) n->next->prev = n;
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        if (db.topscreen == db.cursor) db.topscreen = n;
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        db.cursor = n;
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        _fmemmove(db.cursor->payload + off + 1, db.cursor->payload + off, db.cursor->len - off + 1);
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        db.cursor->len += 1;
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        uidirtyfrom = cursorposy;
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        uidirtyto = cursorposy;
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        db.cursor->payload[off] = k;
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        cursor_right(&db, &cursorposx, &cursorposy, screenw, screenh, &uidirtyfrom, &uidirtyto);
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      }
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469 
    } else { /* UNHANDLED KEY - TODO IGNORE THIS IN PRODUCTION RELEASE */
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    } else { /* UNHANDLED KEY - TODO IGNORE THIS IN PRODUCTION RELEASE */
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      char buff[4];
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      char buff[4];
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      const char *HEX = "0123456789ABCDEF";
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      const char *HEX = "0123456789ABCDEF";
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      buff[0] = HEX[(k >> 8) & 15];
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      buff[0] = HEX[(k >> 8) & 15];
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      buff[1] = HEX[(k >> 4) & 15];
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      buff[1] = HEX[(k >> 4) & 15];