/************************************************************************
* This file is part of PDCurses. PDCurses is public domain software; *
* you may use it for any purpose. This software is provided AS IS with *
* NO WARRANTY whatsoever. *
* *
* If you use PDCurses in an application, an acknowledgement would be *
* appreciated, but is not mandatory. If you make corrections or *
* enhancements to PDCurses, please forward them to the current *
* maintainer for the benefit of other users. *
* *
* See the file maintain.er for details of the current maintainer. *
************************************************************************/
#include <curspriv.h>
RCSID("$Id: insch.c,v 1.42 2007/06/14 14:11:30 wmcbrine Exp $")
/*man-start**************************************************************
Name: insch
Synopsis:
int insch(chtype ch);
int winsch(WINDOW *win, chtype ch);
int mvinsch(int y, int x, chtype ch);
int mvwinsch(WINDOW *win, int y, int x, chtype ch);
int insrawch(chtype ch);
int winsrawch(WINDOW *win, chtype ch);
int mvinsrawch(int y, int x, chtype ch);
int mvwinsrawch(WINDOW *win, int y, int x, chtype ch);
int ins_wch(const cchar_t *wch);
int wins_wch(WINDOW *win, const cchar_t *wch);
int mvins_wch(int y, int x, const cchar_t *wch);
int mvwins_wch(WINDOW *win, int y, int x, const cchar_t *wch);
Description:
The insch() functions insert a chtype into the window at the
current or specified cursor position. The cursor is NOT
advanced. A newline is equivalent to clrtoeol(); tabs are
expanded; other control characters are converted as with
unctrl().
The ins_wch() functions are the wide-character
equivalents, taking cchar_t pointers rather than chtypes.
Video attributes can be combined with a character by ORing
them into the parameter. Text, including attributes, can be
copied from one place to another using inch() and insch().
insrawch() etc. are PDCurses-specific wrappers for insch() etc.
that disable the translation of control characters.
Return Value:
All functions return OK on success and ERR on error.
Portability X/Open BSD SYS V
insch Y Y Y
winsch Y Y Y
mvinsch Y Y Y
mvwinsch Y Y Y
insrawch - - -
winsrawch - - -
ins_wch Y
wins_wch Y
mvins_wch Y
mvwins_wch Y
**man-end****************************************************************/
#include <string.h>
int winsch(WINDOW *win, chtype ch)
{
int x, y;
chtype attr;
bool xlat;
PDC_LOG(("winsch() - called: win=%p ch=%x (text=%c attr=0x%x)\n",
win, ch, ch & A_CHARTEXT, ch & A_ATTRIBUTES));
if (!win)
return ERR;
x = win->_curx;
y = win->_cury;
if (y > win->_maxy || x > win->_maxx || y < 0 || x < 0)
return ERR;
xlat = !SP->raw_out && !(ch & A_ALTCHARSET);
attr = ch & A_ATTRIBUTES;
ch &= A_CHARTEXT;
if (xlat && (ch < ' ' || ch == 0x7f))
{
int x2;
switch (ch)
{
case '\t':
for (x2 = ((x / TABSIZE) + 1) * TABSIZE; x < x2; x++)
{
if (winsch(win, attr | ' ') == ERR)
return ERR;
}
return OK;
case '\n':
wclrtoeol(win);
break;
case 0x7f:
if (winsch(win, attr | '?') == ERR)
return ERR;
return winsch(win, attr | '^');
default:
/* handle control chars */
if (winsch(win, attr | (ch + '@')) == ERR)
return ERR;
return winsch(win, attr | '^');
}
}
else
{
int maxx;
chtype *temp;
/* If the incoming character doesn't have its own
attribute, then use the current attributes for
the window. If it has attributes but not a color
component, OR the attributes to the current
attributes for the window. If it has a color
component, use the attributes solely from the
incoming character. */
if (!(attr & A_COLOR))
attr |= win->_attrs;
/* wrs (4/10/93): Apply the same sort of logic for the
window background, in that it only takes precedence
if other color attributes are not there and that the
background character will only print if the printing
character is blank. */
if (!(attr & A_COLOR))
attr |= win->_bkgd & A_ATTRIBUTES;
else
attr |= win->_bkgd & (A_ATTRIBUTES ^ A_COLOR);
if (ch == ' ')
ch = win->_bkgd & A_CHARTEXT;
/* Add the attribute back into the character. */
ch |= attr;
maxx = win->_maxx;
temp = &win->_y[y][x];
memmove(temp + 1, temp, (maxx - x - 1) * sizeof(chtype));
win->_lastch[y] = maxx - 1;
if ((win->_firstch[y] == _NO_CHANGE) || (win->_firstch[y] > x))
win->_firstch[y] = x;
*temp = ch;
}
PDC_sync(win);
return OK;
}
int insch(chtype ch)
{
PDC_LOG(("insch() - called\n"));
return winsch(stdscr, ch);
}
int mvinsch(int y, int x, chtype ch)
{
PDC_LOG(("mvinsch() - called\n"));
if (move(y, x) == ERR)
return ERR;
return winsch(stdscr, ch);
}
int mvwinsch(WINDOW *win, int y, int x, chtype ch)
{
PDC_LOG(("mvwinsch() - called\n"));
if (wmove(win, y, x) == ERR)
return ERR;
return winsch(win, ch);
}
int winsrawch(WINDOW *win, chtype ch)
{
PDC_LOG(("winsrawch() - called: win=%p ch=%x "
"(char=%c attr=0x%x)\n", win, ch,
ch & A_CHARTEXT, ch & A_ATTRIBUTES));
if ((ch & A_CHARTEXT) < ' ' || (ch & A_CHARTEXT) == 0x7f)
ch |= A_ALTCHARSET;
return winsch(win, ch);
}
int insrawch(chtype ch)
{
PDC_LOG(("insrawch() - called\n"));
return winsrawch(stdscr, ch);
}
int mvinsrawch(int y, int x, chtype ch)
{
PDC_LOG(("mvinsrawch() - called\n"));
if (move(y, x) == ERR)
return ERR;
return winsrawch(stdscr, ch);
}
int mvwinsrawch(WINDOW *win, int y, int x, chtype ch)
{
PDC_LOG(("mvwinsrawch() - called\n"));
if (wmove(win, y, x) == ERR)
return ERR;
return winsrawch(win, ch);
}
#ifdef PDC_WIDE
int wins_wch(WINDOW *win, const cchar_t *wch)
{
PDC_LOG(("wins_wch() - called\n"));
return wch ? winsch(win, *wch) : ERR;
}
int ins_wch(const cchar_t *wch)
{
PDC_LOG(("ins_wch() - called\n"));
return wins_wch(stdscr, wch);
}
int mvins_wch(int y, int x, const cchar_t *wch)
{
PDC_LOG(("mvins_wch() - called\n"));
if (move(y, x) == ERR)
return ERR;
return wins_wch(stdscr, wch);
}
int mvwins_wch(WINDOW *win, int y, int x, const cchar_t *wch)
{
PDC_LOG(("mvwins_wch() - called\n"));
if (wmove(win, y, x) == ERR)
return ERR;
return wins_wch(win, wch);
}
#endif
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