1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1995-1998 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* LINTLIBRARY */ 30 31 /* 32 * prefresh.c 33 * 34 * XCurses Library 35 * 36 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved. 37 * 38 */ 39 40 #ifdef M_RCSID 41 #ifndef lint 42 static char rcsID[] = 43 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/" 44 "libxcurses/src/libc/xcurses/rcs/prefresh.c 1.4 1998/06/03 16:06:14 " 45 "cbates Exp $"; 46 #endif 47 #endif 48 49 #include <private.h> 50 51 /* 52 * Update newscr with the given pad then display to the terminal. 53 */ 54 int 55 prefresh(WINDOW *w, int pminr, int pminc, int sminr, int sminc, 56 int smaxr, int smaxc) 57 { 58 int code; 59 60 code = pnoutrefresh(w, pminr, pminc, sminr, sminc, smaxr, smaxc); 61 if (code == OK) 62 code = doupdate(); 63 64 return (code); 65 } 66 67 /* 68 * Update newscr with the given pad. This allows newscr to 69 * be updated with several windows before doing a doupdate(). 70 * 71 * MKS extension permits windows that are not pads to be refreshed 72 * using this function. 73 */ 74 int 75 pnoutrefresh(WINDOW *pad, int pminr, int pminc, int sminr, int sminc, 76 int smaxr, int smaxc) 77 { 78 WINDOW *ns; 79 int row, dy, dx; 80 81 ns = __m_screen->_newscr; 82 83 /* Adjust regions to be within bounds. */ 84 if (pminr < 0) 85 pminr = 0; 86 if (pminc < 0) 87 pminc = 0; 88 if (sminr < 0) 89 sminr = 0; 90 if (sminc < 0) 91 sminc = 0; 92 if (ns->_maxy <= smaxr) 93 smaxr = ns->_maxy-1; 94 if (ns->_maxx <= smaxc) 95 smaxc = ns->_maxx-1; 96 97 if (pad->_maxy <= pminr || pad->_maxx <= pminc || 98 smaxr < sminr || smaxc < sminc) 99 return (ERR); 100 101 /* Clear displayed region. */ 102 for (row = sminr; row < smaxr; ++row) { 103 (void) __m_cc_erase(ns, row, sminc, row, smaxc); 104 } 105 106 /* 107 * Determine the proper maximums in case smaxr and smaxc mapped 108 * beyond the bottom and right-hand edges of the pad. 109 */ 110 if (pad->_maxx <= pminc + smaxc-sminc + 1) 111 smaxc = sminc + pad->_maxx - 1 - pminc; 112 if (pad->_maxy <= pminr + smaxr-sminr + 1) 113 smaxr = sminr + pad->_maxy - 1 - pminr; 114 115 /* Remember refresh region (inclusive). */ 116 pad->_refy = (short) pminr; 117 pad->_refx = (short) pminc; 118 pad->_sminy = (short) sminr; 119 pad->_sminx = (short) sminc; 120 pad->_smaxy = (short) smaxr; 121 pad->_smaxx = (short) smaxc; 122 123 (void) copywin(pad, ns, pminr, pminc, sminr, sminc, smaxr, smaxc, 0); 124 125 /* Last refreshed window controls W_LEAVE_CURSOR flag. */ 126 ns->_flags &= ~W_LEAVE_CURSOR; 127 ns->_flags |= pad->_flags & 128 (W_CLEAR_WINDOW | W_REDRAW_WINDOW | W_LEAVE_CURSOR); 129 pad->_flags &= ~(W_CLEAR_WINDOW | W_REDRAW_WINDOW); 130 131 /* Figure out where to leave the cursor. */ 132 dy = pad->_cury - pminr + pad->_begy; 133 dx = pad->_curx - pminc + pad->_begx; 134 135 ns->_cury = (dy < 0) ? 0 : 136 ((ns->_maxy <= dy) ? ns->_maxy - 1 : (short) dy); 137 ns->_curx = (dx < 0) ? 0 : 138 ((ns->_maxx <= dx) ? ns->_maxx - 1 : (short) dx); 139 140 return (OK); 141 } 142