initscr.c revision 1.6.2.2
1 1.6.2.2 cgd /* 2 1.6.2.2 cgd * Copyright (c) 1981, 1993, 1994 3 1.6.2.2 cgd * The Regents of the University of California. All rights reserved. 4 1.6.2.2 cgd * 5 1.6.2.2 cgd * Redistribution and use in source and binary forms, with or without 6 1.6.2.2 cgd * modification, are permitted provided that the following conditions 7 1.6.2.2 cgd * are met: 8 1.6.2.2 cgd * 1. Redistributions of source code must retain the above copyright 9 1.6.2.2 cgd * notice, this list of conditions and the following disclaimer. 10 1.6.2.2 cgd * 2. Redistributions in binary form must reproduce the above copyright 11 1.6.2.2 cgd * notice, this list of conditions and the following disclaimer in the 12 1.6.2.2 cgd * documentation and/or other materials provided with the distribution. 13 1.6.2.2 cgd * 3. All advertising materials mentioning features or use of this software 14 1.6.2.2 cgd * must display the following acknowledgement: 15 1.6.2.2 cgd * This product includes software developed by the University of 16 1.6.2.2 cgd * California, Berkeley and its contributors. 17 1.6.2.2 cgd * 4. Neither the name of the University nor the names of its contributors 18 1.6.2.2 cgd * may be used to endorse or promote products derived from this software 19 1.6.2.2 cgd * without specific prior written permission. 20 1.6.2.2 cgd * 21 1.6.2.2 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 1.6.2.2 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 1.6.2.2 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 1.6.2.2 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 1.6.2.2 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 1.6.2.2 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 1.6.2.2 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 1.6.2.2 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 1.6.2.2 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 1.6.2.2 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 1.6.2.2 cgd * SUCH DAMAGE. 32 1.6.2.2 cgd */ 33 1.6.2.2 cgd 34 1.6.2.2 cgd #ifndef lint 35 1.6.2.2 cgd static char sccsid[] = "@(#)initscr.c 8.2 (Berkeley) 5/4/94"; 36 1.6.2.2 cgd #endif /* not lint */ 37 1.6.2.2 cgd 38 1.6.2.2 cgd #include <signal.h> 39 1.6.2.2 cgd #include <stdlib.h> 40 1.6.2.2 cgd 41 1.6.2.2 cgd #include "curses.h" 42 1.6.2.2 cgd 43 1.6.2.2 cgd /* 44 1.6.2.2 cgd * initscr -- 45 1.6.2.2 cgd * Initialize the current and standard screen. 46 1.6.2.2 cgd */ 47 1.6.2.2 cgd WINDOW * 48 1.6.2.2 cgd initscr() 49 1.6.2.2 cgd { 50 1.6.2.2 cgd register char *sp; 51 1.6.2.2 cgd 52 1.6.2.2 cgd #ifdef DEBUG 53 1.6.2.2 cgd __CTRACE("initscr\n"); 54 1.6.2.2 cgd #endif 55 1.6.2.2 cgd __echoit = 1; 56 1.6.2.2 cgd __pfast = __rawmode = __noqch = 0; 57 1.6.2.2 cgd 58 1.6.2.2 cgd if (gettmode() == ERR) 59 1.6.2.2 cgd return (NULL); 60 1.6.2.2 cgd 61 1.6.2.2 cgd /* 62 1.6.2.2 cgd * If My_term is set, or can't find a terminal in the environment, 63 1.6.2.2 cgd * use Def_term. 64 1.6.2.2 cgd */ 65 1.6.2.2 cgd if (My_term || (sp = getenv("TERM")) == NULL) 66 1.6.2.2 cgd sp = Def_term; 67 1.6.2.2 cgd if (setterm(sp) == ERR) 68 1.6.2.2 cgd return (NULL); 69 1.6.2.2 cgd 70 1.6.2.2 cgd /* Need either homing or cursor motion for refreshes */ 71 1.6.2.2 cgd if (!HO && !CM) 72 1.6.2.2 cgd return (NULL); 73 1.6.2.2 cgd 74 1.6.2.2 cgd if (curscr != NULL) 75 1.6.2.2 cgd delwin(curscr); 76 1.6.2.2 cgd if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR) 77 1.6.2.2 cgd return (NULL); 78 1.6.2.2 cgd clearok(curscr, 1); 79 1.6.2.2 cgd 80 1.6.2.2 cgd if (stdscr != NULL) 81 1.6.2.2 cgd delwin(stdscr); 82 1.6.2.2 cgd if ((stdscr = newwin(LINES, COLS, 0, 0)) == ERR) { 83 1.6.2.2 cgd delwin(curscr); 84 1.6.2.2 cgd return (NULL); 85 1.6.2.2 cgd } 86 1.6.2.2 cgd 87 1.6.2.2 cgd __set_stophandler(); 88 1.6.2.2 cgd 89 1.6.2.2 cgd #ifdef DEBUG 90 1.6.2.2 cgd __CTRACE("initscr: LINES = %d, COLS = %d\n", LINES, COLS); 91 1.6.2.2 cgd #endif 92 1.6.2.2 cgd __startwin(); 93 1.6.2.2 cgd 94 1.6.2.2 cgd return (stdscr); 95 1.6.2.2 cgd } 96
Indexes created Thu Oct 02 01:09:59 GMT 2025