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, by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 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[] = "$Header: /rd/src/libc/xcurses/rcs/prefresh.c 1.3 1995/06/20 14:34:10 ant Exp $"; 41 #endif 42 #endif 43 44 #include <private.h> 45 46 /*f 47 * Update newscr with the given pad then display to the terminal. 48 */ 49 int 50 prefresh(w, pminr, pminc, sminr, sminc, smaxr, smaxc) 51 WINDOW *w; 52 int pminr, pminc, sminr, sminc, smaxr, smaxc; 53 { 54 int code; 55 56 #ifdef M_CURSES_TRACE 57 __m_trace( 58 "prefresh(%p, %d, %d, %d, %d, %d, %d)", 59 w, pminr, pminc, sminr, sminc, smaxr, smaxc 60 ); 61 #endif 62 63 code = pnoutrefresh(w, pminr, pminc, sminr, sminc, smaxr, smaxc); 64 if (code == OK) 65 code = doupdate(); 66 67 return __m_return_code("prefresh", code); 68 } 69 70 /*f 71 * Update newscr with the given pad. This allows newscr to 72 * be updated with several windows before doing a doupdate(). 73 * 74 * MKS extension permits windows that are not pads to be refreshed 75 * using this function. 76 */ 77 int 78 pnoutrefresh(pad, pminr, pminc, sminr, sminc, smaxr, smaxc) 79 WINDOW *pad; 80 int pminr, pminc, sminr, sminc, smaxr, smaxc; 81 { 82 WINDOW *ns; 83 int row, dy, dx; 84 85 #ifdef M_CURSES_TRACE 86 __m_trace( 87 "pnoutrefresh(%p, %d, %d, %d, %d, %d, %d)", 88 pad, pminr, pminc, sminr, sminc, smaxr, smaxc 89 ); 90 #endif 91 92 ns = __m_screen->_newscr; 93 94 /* Adjust regions to be within bounds. */ 95 if (pminr < 0) 96 pminr = 0; 97 if (pminc < 0) 98 pminc = 0; 99 if (sminr < 0) 100 sminr = 0; 101 if (sminc < 0) 102 sminc = 0; 103 if (ns->_maxy <= smaxr) 104 smaxr = ns->_maxy-1; 105 if (ns->_maxx <= smaxc) 106 smaxr = ns->_maxx-1; 107 108 if (pad->_maxy <= pminr || pad->_maxx <= pminc 109 || smaxr < sminr || smaxc < sminc) 110 return __m_return_code("pnoutrefresh", ERR); 111 112 /* Clear displayed region. */ 113 for (row = sminr; row <= smaxr; ++row) 114 (void) __m_cc_erase(ns, row, sminc, row, smaxc); 115 116 /* Determine the proper maximums in case smaxr and smaxc mapped 117 * beyond the bottom and right-hand edges of the pad. 118 */ 119 if (pad->_maxx <= pminc + smaxc-sminc+1) 120 smaxc = sminc + pad->_maxx - 1 - pminc; 121 if (pad->_maxy <= pminr + smaxr-sminr+1) 122 smaxr = sminr + pad->_maxy - 1 - pminr; 123 124 /* Remember refresh region (inclusive). */ 125 pad->_refy = (short) pminr; 126 pad->_refx = (short) pminc; 127 pad->_sminy = (short) sminr; 128 pad->_sminx = (short) sminc; 129 pad->_smaxy = (short) smaxr; 130 pad->_smaxx = (short) smaxc; 131 132 (void) copywin(pad, ns, pminr, pminc, sminr, sminc, smaxr, smaxc, 0); 133 134 /* Last refreshed window controls W_LEAVE_CURSOR flag. */ 135 ns->_flags &= ~W_LEAVE_CURSOR; 136 ns->_flags |= pad->_flags 137 & (W_CLEAR_WINDOW | W_REDRAW_WINDOW | W_LEAVE_CURSOR); 138 pad->_flags &= ~(W_CLEAR_WINDOW | W_REDRAW_WINDOW); 139 140 /* Figure out where to leave the cursor. */ 141 dy = pad->_cury - pminr + pad->_begy; 142 dx = pad->_curx - pminc + pad->_begx; 143 144 ns->_cury = dy < 0 ? 0 : ns->_maxy <= dy ? ns->_maxy-1 : dy; 145 ns->_curx = dx < 0 ? 0 : ns->_maxx <= dx ? ns->_maxx-1 : dx; 146 147 return __m_return_code("pnoutrefresh", OK); 148 } 149