1 files changed, 274 insertions, 0 deletions

diff --git a/scripts/kconfig/libcurses/pad.c b/scripts/kconfig/libcurses/pad.c
new file mode 100644
index 000000000..3dfdfe5d6
--- /dev/null
+++ b/scripts/kconfig/libcurses/pad.c
@@ -0,0 +1,274 @@
+/* PDCurses */
+
+#include "curspriv.h"
+
+/*man-start**************************************************************
+
+pad
+---
+
+### Synopsis
+
+    WINDOW *newpad(int nlines, int ncols);
+    WINDOW *subpad(WINDOW *orig, int nlines, int ncols,
+                   int begy, int begx);
+    int prefresh(WINDOW *win, int py, int px, int sy1, int sx1,
+                 int sy2, int sx2);
+    int pnoutrefresh(WINDOW *w, int py, int px, int sy1, int sx1,
+                     int sy2, int sx2);
+    int pechochar(WINDOW *pad, chtype ch);
+    int pecho_wchar(WINDOW *pad, const cchar_t *wch);
+
+    bool is_pad(const WINDOW *pad);
+
+### Description
+
+   A pad is a special kind of window, which is not restricted by the
+   screen size, and is not necessarily associated with a particular part
+   of the screen. You can use a pad when you need a large window, and
+   only a part of the window will be on the screen at one time. Pads are
+   not refreshed automatically (e.g., from scrolling or echoing of
+   input). You can't call wrefresh() with a pad as an argument; use
+   prefresh() or pnoutrefresh() instead. Note that these routines
+   require additional parameters to specify the part of the pad to be
+   displayed, and the location to use on the screen.
+
+   newpad() creates a new pad data structure.
+
+   subpad() creates a new sub-pad within a pad, at position (begy,
+   begx), with dimensions of nlines lines and ncols columns. This
+   position is relative to the pad, and not to the screen as with
+   subwin. Changes to either the parent pad or sub-pad will affect both.
+   When using sub-pads, you may need to call touchwin() before calling
+   prefresh().
+
+   pnoutrefresh() copies the specified pad to the virtual screen.
+
+   prefresh() calls pnoutrefresh(), followed by doupdate().
+
+   These routines are analogous to wnoutrefresh() and wrefresh(). (py,
+   px) specifies the upper left corner of the part of the pad to be
+   displayed; (sy1, sx1) and (sy2, sx2) describe the screen rectangle
+   that will contain the selected part of the pad.
+
+   pechochar() is functionally equivalent to addch() followed by a call
+   to prefresh(), with the last-used coordinates and dimensions.
+   pecho_wchar() is the wide-character version.
+
+   is_pad() reports whether the specified window is a pad.
+
+### Return Value
+
+   All functions except is_pad() return OK on success and ERR on error.
+
+### Portability
+                             X/Open  ncurses  NetBSD
+    newpad                      Y       Y       Y
+    subpad                      Y       Y       Y
+    prefresh                    Y       Y       Y
+    pnoutrefresh                Y       Y       Y
+    pechochar                   Y       Y       Y
+    pecho_wchar                 Y       Y       Y
+    is_pad                      -       Y       Y
+
+**man-end****************************************************************/
+
+#include <string.h>
+
+WINDOW *newpad(int nlines, int ncols)
+{
+    WINDOW *win;
+
+    PDC_LOG(("newpad() - called: lines=%d cols=%d\n", nlines, ncols));
+
+    win = PDC_makenew(nlines, ncols, 0, 0);
+    if (win)
+        win = PDC_makelines(win);
+
+    if (!win)
+        return (WINDOW *)NULL;
+
+    werase(win);
+
+    win->_flags = _PAD;
+    win->_pad._pad_y = 0;
+    win->_pad._pad_x = 0;
+    win->_pad._pad_top = 0;
+    win->_pad._pad_left = 0;
+    win->_pad._pad_bottom = min(LINES, nlines) - 1;
+    win->_pad._pad_right = min(COLS, ncols) - 1;
+
+    return win;
+}
+
+WINDOW *subpad(WINDOW *orig, int nlines, int ncols, int begy, int begx)
+{
+    WINDOW *win;
+    int i;
+
+    PDC_LOG(("subpad() - called: lines=%d cols=%d begy=%d begx=%d\n",
+             nlines, ncols, begy, begx));
+
+    if (!orig || !(orig->_flags & _PAD))
+        return (WINDOW *)NULL;
+
+    /* make sure window fits inside the original one */
+
+    if (begy < 0 || begx < 0 ||
+        (begy + nlines) > orig->_maxy ||
+        (begx + ncols)  > orig->_maxx)
+        return (WINDOW *)NULL;
+
+    if (!nlines)
+        nlines = orig->_maxy - begy;
+
+    if (!ncols)
+        ncols = orig->_maxx - begx;
+
+    win = PDC_makenew(nlines, ncols, begy, begx);
+    if (!win)
+        return (WINDOW *)NULL;
+
+    /* initialize window variables */
+
+    win->_attrs = orig->_attrs;
+    win->_leaveit = orig->_leaveit;
+    win->_scroll = orig->_scroll;
+    win->_nodelay = orig->_nodelay;
+    win->_use_keypad = orig->_use_keypad;
+    win->_parent = orig;
+
+    for (i = 0; i < nlines; i++)
+        win->_y[i] = orig->_y[begy + i] + begx;
+
+    win->_flags = _SUBPAD;
+    win->_pad._pad_y = 0;
+    win->_pad._pad_x = 0;
+    win->_pad._pad_top = 0;
+    win->_pad._pad_left = 0;
+    win->_pad._pad_bottom = min(LINES, nlines) - 1;
+    win->_pad._pad_right = min(COLS, ncols) - 1;
+
+    return win;
+}
+
+int prefresh(WINDOW *win, int py, int px, int sy1, int sx1, int sy2, int sx2)
+{
+    PDC_LOG(("prefresh() - called\n"));
+
+    if (pnoutrefresh(win, py, px, sy1, sx1, sy2, sx2) == ERR)
+        return ERR;
+
+    doupdate();
+    return OK;
+}
+
+int pnoutrefresh(WINDOW *w, int py, int px, int sy1, int sx1, int sy2, int sx2)
+{
+    int num_cols;
+    int sline;
+    int pline;
+
+    PDC_LOG(("pnoutrefresh() - called\n"));
+
+    if (py < 0)
+        py = 0;
+    if (px < 0)
+        px = 0;
+    if (sy1 < 0)
+        sy1 = 0;
+    if (sx1 < 0)
+        sx1 = 0;
+
+    if ((!w || !(w->_flags & (_PAD|_SUBPAD)) ||
+        (sy2 >= LINES) || (sx2 >= COLS)) ||
+        (sy2 < sy1) || (sx2 < sx1))
+        return ERR;
+
+    sline = sy1;
+    pline = py;
+
+    num_cols = min((sx2 - sx1 + 1), (w->_maxx - px));
+
+    while (sline <= sy2)
+    {
+        if (pline < w->_maxy)
+        {
+            memcpy(curscr->_y[sline] + sx1, w->_y[pline] + px,
+                   num_cols * sizeof(chtype));
+
+            if ((curscr->_firstch[sline] == _NO_CHANGE)
+                || (curscr->_firstch[sline] > sx1))
+                curscr->_firstch[sline] = sx1;
+
+            if (sx2 > curscr->_lastch[sline])
+                curscr->_lastch[sline] = sx2;
+
+            w->_firstch[pline] = _NO_CHANGE; /* updated now */
+            w->_lastch[pline] = _NO_CHANGE;  /* updated now */
+        }
+
+        sline++;
+        pline++;
+    }
+
+    if (w->_clear)
+    {
+        w->_clear = FALSE;
+        curscr->_clear = TRUE;
+    }
+
+    /* position the cursor to the pad's current position if possible --
+       is the pad current position going to end up displayed? if not,
+       then don't move the cursor; if so, move it to the correct place */
+
+    if (!w->_leaveit && w->_cury >= py && w->_curx >= px &&
+         w->_cury <= py + (sy2 - sy1) && w->_curx <= px + (sx2 - sx1))
+    {
+        curscr->_cury = (w->_cury - py) + sy1;
+        curscr->_curx = (w->_curx - px) + sx1;
+    }
+
+    w->_pad._pad_y = py;
+    w->_pad._pad_x = px;
+    w->_pad._pad_top = sy1;
+    w->_pad._pad_left = sx1;
+    w->_pad._pad_bottom = sy2;
+    w->_pad._pad_right = sx2;
+
+    return OK;
+}
+
+int pechochar(WINDOW *pad, chtype ch)
+{
+    PDC_LOG(("pechochar() - called\n"));
+
+    if (waddch(pad, ch) == ERR)
+        return ERR;
+
+    return prefresh(pad, pad->_pad._pad_y, pad->_pad._pad_x, pad->_pad._pad_top,
+                    pad->_pad._pad_left, pad->_pad._pad_bottom, pad->_pad._pad_right);
+}
+
+#ifdef PDC_WIDE
+int pecho_wchar(WINDOW *pad, const cchar_t *wch)
+{
+    PDC_LOG(("pecho_wchar() - called\n"));
+
+    if (!wch || (waddch(pad, *wch) == ERR))
+        return ERR;
+
+    return prefresh(pad, pad->_pad._pad_y, pad->_pad._pad_x, pad->_pad._pad_top,
+                    pad->_pad._pad_left, pad->_pad._pad_bottom, pad->_pad._pad_right);
+}
+#endif
+
+bool is_pad(const WINDOW *pad)
+{
+    PDC_LOG(("is_pad() - called\n"));
+
+    if (!pad)
+        return FALSE;
+
+    return (pad->_flags & _PAD) ? TRUE : FALSE;
+}