/****************************************************************************
- * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
#include <curses.priv.h>
#include <stddef.h>
-MODULE_ID("$Id: lib_newwin.c,v 1.65 2009/11/14 01:12:48 Nicholas.Marriott Exp $")
+MODULE_ID("$Id: lib_newwin.c,v 1.71 2011/05/28 21:32:51 tom Exp $")
#define window_is(name) ((sp)->_##name == win)
T((T_CALLED("newwin(%p, %d,%d,%d,%d)"), (void *) SP_PARM, num_lines, num_columns,
begy, begx));
- if (begy < 0 || begx < 0 || num_lines < 0 || num_columns < 0)
+ if (begy < 0
+ || begx < 0
+ || num_lines < 0
+ || num_columns < 0
+ || SP_PARM == 0)
returnWin(0);
if (num_lines == 0)
NCURSES_EXPORT(WINDOW *)
subwin(WINDOW *w, int l, int c, int y, int x)
{
+ WINDOW *result = 0;
+
T((T_CALLED("subwin(%p, %d, %d, %d, %d)"), (void *) w, l, c, y, x));
- T(("parent has begy = %ld, begx = %ld", (long) w->_begy, (long) w->_begx));
+ if (w != 0) {
+ T(("parent has begy = %ld, begx = %ld", (long) w->_begy, (long) w->_begx));
- returnWin(derwin(w, l, c, y - w->_begy, x - w->_begx));
+ result = derwin(w, l, c, y - w->_begy, x - w->_begx);
+ }
+ returnWin(result);
}
static bool
dimension_limit(int value)
{
- NCURSES_SIZE_T test = value;
+ NCURSES_SIZE_T test = (NCURSES_SIZE_T) value;
return (test == value && value > 0);
}
win->_curx = 0;
win->_cury = 0;
- win->_maxy = num_lines - 1;
- win->_maxx = num_columns - 1;
- win->_begy = begy;
- win->_begx = begx;
+ win->_maxy = (NCURSES_SIZE_T) (num_lines - 1);
+ win->_maxx = (NCURSES_SIZE_T) (num_columns - 1);
+ win->_begy = (NCURSES_SIZE_T) begy;
+ win->_begx = (NCURSES_SIZE_T) begx;
win->_yoffset = SP_PARM->_topstolen;
- win->_flags = flags;
+ win->_flags = (short) flags;
WINDOW_ATTRS(win) = A_NORMAL;
SetChar(win->_nc_bkgd, BLANK_TEXT, BLANK_ATTR);
win->_parent = 0;
win->_regtop = 0;
- win->_regbottom = num_lines - 1;
+ win->_regbottom = (NCURSES_SIZE_T) (num_lines - 1);
win->_pad._pad_y = -1;
win->_pad._pad_x = -1;
* So that's how we want ncurses to behave.
*/
win->_line[i].firstchar = 0;
- win->_line[i].lastchar = num_columns - 1;
+ win->_line[i].lastchar = (NCURSES_SIZE_T) (num_columns - 1);
if_USE_SCROLL_HINTS(win->_line[i].oldindex = i);
}