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    /* $OpenBSD: lib_touch.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */  | 
    
    
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    /****************************************************************************  | 
    
    
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     * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *  | 
    
    
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     *                                                                          *  | 
    
    
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     * Permission is hereby granted, free of charge, to any person obtaining a  *  | 
    
    
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     * copy of this software and associated documentation files (the            *  | 
    
    
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     * "Software"), to deal in the Software without restriction, including      *  | 
    
    
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     * without limitation the rights to use, copy, modify, merge, publish,      *  | 
    
    
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     * distribute, distribute with modifications, sublicense, and/or sell       *  | 
    
    
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     * copies of the Software, and to permit persons to whom the Software is    *  | 
    
    
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     * furnished to do so, subject to the following conditions:                 *  | 
    
    
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     *                                                                          *  | 
    
    
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     * The above copyright notice and this permission notice shall be included  *  | 
    
    
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     * in all copies or substantial portions of the Software.                   *  | 
    
    
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     *                                                                          *  | 
    
    
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     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *  | 
    
    
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     * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *  | 
    
    
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     * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *  | 
    
    
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     * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *  | 
    
    
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     * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *  | 
    
    
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     * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *  | 
    
    
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     * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *  | 
    
    
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     *                                                                          *  | 
    
    
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     * Except as contained in this notice, the name(s) of the above copyright   *  | 
    
    
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     * holders shall not be used in advertising or otherwise to promote the     *  | 
    
    
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     * sale, use or other dealings in this Software without prior written       *  | 
    
    
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     * authorization.                                                           *  | 
    
    
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     ****************************************************************************/  | 
    
    
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    /****************************************************************************  | 
    
    
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     *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *  | 
    
    
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     *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *  | 
    
    
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     ****************************************************************************/  | 
    
    
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    /*  | 
    
    
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    **	lib_touch.c  | 
    
    
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    **  | 
    
    
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    **	   The routines	untouchwin(),  | 
    
    
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    **			wtouchln(),  | 
    
    
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    **			is_linetouched()  | 
    
    
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    **			is_wintouched().  | 
    
    
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    **  | 
    
    
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    */  | 
    
    
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    #include <curses.priv.h>  | 
    
    
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    MODULE_ID("$Id: lib_touch.c,v 1.3 2010/01/12 23:22:06 nicm Exp $") | 
    
    
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    NCURSES_EXPORT(bool)  | 
    
    
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    is_linetouched(WINDOW *win, int line)  | 
    
    
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    { | 
    
    
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        T((T_CALLED("is_linetouched(%p,%d)"), win, line)); | 
    
    
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        /* XSI doesn't define any error */  | 
    
    
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        if (!win || (line > win->_maxy) || (line < 0))  | 
    
    
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    	returnCode((bool) ERR);  | 
    
    
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        returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE);  | 
    
    
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    }  | 
    
    
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    NCURSES_EXPORT(bool)  | 
    
    
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    is_wintouched(WINDOW *win)  | 
    
    
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    { | 
    
    
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        int i;  | 
    
    
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        T((T_CALLED("is_wintouched(%p)"), win)); | 
    
    
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        if (win)  | 
    
    
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    	for (i = 0; i <= win->_maxy; i++)  | 
    
    
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    	    if (win->_line[i].firstchar != _NOCHANGE)  | 
    
    
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    		returnCode(TRUE);  | 
    
    
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        returnCode(FALSE);  | 
    
    
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    }  | 
    
    
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    NCURSES_EXPORT(int)  | 
    
    
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    wtouchln(WINDOW *win, int y, int n, int changed)  | 
    
    
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    { | 
    
    
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        int i;  | 
    
    
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        T((T_CALLED("wtouchln(%p,%d,%d,%d)"), win, y, n, changed)); | 
    
    
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        if (!win || (n < 0) || (y < 0) || (y > win->_maxy))  | 
    
    
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    	returnCode(ERR);  | 
    
    
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        for (i = y; i < y + n; i++) { | 
    
    
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    	if (i > win->_maxy)  | 
    
    
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    	    break;  | 
    
    
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    	win->_line[i].firstchar = changed ? 0 : _NOCHANGE;  | 
    
    
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    	win->_line[i].lastchar = changed ? win->_maxx : _NOCHANGE;  | 
    
    
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        }  | 
    
    
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        returnCode(OK);  | 
    
    
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    }  |