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 /* LINTLIBRARY */ 28 29 /* 30 * prefresh.c 31 * 32 * XCurses Library 33 * 34 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved. 35 * 36 */ 37 38 #ifdef M_RCSID 39 #ifndef lint 40 static char rcsID[] = 41 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/" 42 "libxcurses/src/libc/xcurses/rcs/prefresh.c 1.4 1998/06/03 16:06:14 " 43 "cbates Exp $"; 44 #endif 45 #endif 46 47 #include <private.h> 48 49 /* 50 * Update newscr with the given pad then display to the terminal. 51 */ 52 int 53 prefresh(WINDOW *w, int pminr, int pminc, int sminr, int sminc, 54 int smaxr, int smaxc) 55 { 56 int code; 57 58 code = pnoutrefresh(w, pminr, pminc, sminr, sminc, smaxr, smaxc); 59 if (code == OK) 60 code = doupdate(); 61 62 return (code); 63 } 64 65 /* 66 * Update newscr with the given pad. This allows newscr to 67 * be updated with several windows before doing a doupdate(). 68 * 69 * MKS extension permits windows that are not pads to be refreshed 70 * using this function. 71 */ 72 int 73 pnoutrefresh(WINDOW *pad, int pminr, int pminc, int sminr, int sminc, 74 int smaxr, int smaxc) 75 { 76 WINDOW *ns; 77 int row, dy, dx; 78 79 ns = __m_screen->_newscr; 80 81 /* Adjust regions to be within bounds. */ 82 if (pminr < 0) 83 pminr = 0; 84 if (pminc < 0) 85 pminc = 0; 86 if (sminr < 0) 87 sminr = 0; 88 if (sminc < 0) 89 sminc = 0; 90 if (ns->_maxy <= smaxr) 91 smaxr = ns->_maxy-1; 92 if (ns->_maxx <= smaxc) 93 smaxc = ns->_maxx-1; 94 95 if (pad->_maxy <= pminr || pad->_maxx <= pminc || 96 smaxr < sminr || smaxc < sminc) 97 return (ERR); 98 99 /* Clear displayed region. */ 100 for (row = sminr; row < smaxr; ++row) { 101 (void) __m_cc_erase(ns, row, sminc, row, smaxc); 102 } 103 104 /* 105 * Determine the proper maximums in case smaxr and smaxc mapped 106 * beyond the bottom and right-hand edges of the pad. 107 */ 108 if (pad->_maxx <= pminc + smaxc-sminc + 1) 109 smaxc = sminc + pad->_maxx - 1 - pminc; 110 if (pad->_maxy <= pminr + smaxr-sminr + 1) 111 smaxr = sminr + pad->_maxy - 1 - pminr; 112 113 /* Remember refresh region (inclusive). */ 114 pad->_refy = (short) pminr; 115 pad->_refx = (short) pminc; 116 pad->_sminy = (short) sminr; 117 pad->_sminx = (short) sminc; 118 pad->_smaxy = (short) smaxr; 119 pad->_smaxx = (short) smaxc; 120 121 (void) copywin(pad, ns, pminr, pminc, sminr, sminc, smaxr, smaxc, 0); 122 123 /* Last refreshed window controls W_LEAVE_CURSOR flag. */ 124 ns->_flags &= ~W_LEAVE_CURSOR; 125 ns->_flags |= pad->_flags & 126 (W_CLEAR_WINDOW | W_REDRAW_WINDOW | W_LEAVE_CURSOR); 127 pad->_flags &= ~(W_CLEAR_WINDOW | W_REDRAW_WINDOW); 128 129 /* Figure out where to leave the cursor. */ 130 dy = pad->_cury - pminr + pad->_begy; 131 dx = pad->_curx - pminc + pad->_begx; 132 133 ns->_cury = (dy < 0) ? 0 : 134 ((ns->_maxy <= dy) ? ns->_maxy - 1 : (short) dy); 135 ns->_curx = (dx < 0) ? 0 : 136 ((ns->_maxx <= dx) ? ns->_maxx - 1 : (short) dx); 137 138 return (OK); 139 } 140