Category : C Source Code
Archive   : PCURSE14.ZIP
Filename : LINEINS.C

/****************************************************************/
/* Winsertln() routine of the PCcurses package */
/* */
/****************************************************************/
/* This version of curses is based on ncurses, a curses version */
/* originally written by Pavel Curtis at Cornell University. */
/* I have made substantial changes to make it run on IBM PC's, */
/* and therefore consider myself free to make it public domain. */
/* Bjorn Larsson ([email protected]) */
/****************************************************************/
/* 1.4: Use of short wherever possible. Portability */
/* improvements: 900114 */
/* 1.3: MSC -W3, Turbo'C' -w -w-pro checkes: 881005 */
/* 1.2: Max limits off by 1. Fixed thanks to S. Creps: 881002 */
/* 1.1: Mvinsertln() and friends were misrenamed: 880305 */
/* 1.0: Release: 870515 */
/****************************************************************/

#include
#include

char _curses_lineins_rcsid[] = "@(#)lineins.c v.1.4 - 900114";

/****************************************************************/
/* Winsertln() inserts a blank line instead of the cursor line */
/* in window 'win' and pushes other lines down. */
/****************************************************************/

int winsertln(win)
WINDOW *win;
{
short *temp;
short *end;
short y;
static short blank;

blank = ' ' | (win->_attrs & ATR_MSK);
temp = win->_line[win->_regbottom];
for (y = win->_regbottom; y > win->_cury; y--)
{
win->_line[y] = win->_line[y-1];
win->_minchng[y] = 0;
win->_maxchng[y] = win->_maxx - 1;
} /* for */
win->_line[win->_cury] = temp;
for (end = &temp[win->_maxx -1]; temp <= end; temp++)
*temp = blank;
win->_minchng[win->_cury] = 0;
win->_maxchng[win->_cury] = win->_maxx - 1;
return(OK);
} /* winsertln */

/****************************************************************/
/* Insertln() inserts a blank line instead of the cursor line */
/* in stdscr and pushes other lines down. */
/****************************************************************/

int insertln()
{
return(winsertln(stdscr));
} /* insertln */

/****************************************************************/
/* Mvinsertln() moves the stdscr cursor to a new positions, in- */
/* serts a blank line instead of the cursor line and pushes */
/* other lines down. */
/****************************************************************/

int mvinsertln(y,x)
int y;
int x;
{
if (wmove(stdscr,y,x) == ERR)
return(ERR);
return(winsertln(stdscr));
} /* mvinsertln */

/****************************************************************/
/* Mvwinsertln() moves the cursor in window 'win' to a new po- */
/* si tions, inserts a blank line instead of the cursor line */
/* and pushes other lines down. */
/****************************************************************/

int mvwinsertln(win,y,x)
WINDOW *win;
int y;
int x;
{
if (wmove(win,y,x) == ERR)
return(ERR);
return(winsertln(win));
} /* mvwinsertln */