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 * wadd_wch.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/wadd_wch.c 1.5 1998/06/01 14:26:53 " 43 "cbates Exp $"; 44 #endif 45 #endif 46 47 #include <private.h> 48 49 /* Special for calls from string add functions */ 50 int 51 __m_wadd_wch(WINDOW *w, const cchar_t *cc) 52 { 53 int xsave = w->_curx; 54 int ysave = w->_cury; 55 int code = wadd_wch(w, cc); 56 57 if (code == ERR) { 58 w->_curx = (short) xsave; 59 w->_cury = (short) ysave; 60 } 61 return (code); 62 } 63 64 /* 65 * Add a character (and attributes) to a window and advance the cursor. 66 * Automatic newline done at right margin, tabs are expanded every 8 67 * columns, backspaces are handled. Newline will clear the rest of the 68 * line; if nl() mode then the cursor is advanced to the start of the 69 * next line. 70 */ 71 int 72 wadd_wch(WINDOW *w, const cchar_t *cc) 73 { 74 cchar_t uc; 75 const wchar_t *p; 76 int code, x, y; 77 int oflags; 78 79 oflags = w->_flags & (W_FLUSH | W_SYNC_UP); 80 81 code = ERR; 82 x = w->_curx; 83 y = w->_cury; 84 85 if (x < 0 || w->_maxx <= x || y < 0 || w->_maxy <= y) 86 goto error; 87 88 if (iswprint(cc->_wc[0]) || cc->_wc[0] == L'\n' || 89 cc->_wc[0] == L'\b' || cc->_wc[0] == L'\r') { 90 if (__m_cc_add(w, y, x, cc, 0, &y, &x) == ERR) 91 goto error; 92 } else if (cc->_wc[0] == L'\t') { 93 /* 94 * Experimental ... 95 * Maybe other cntrl chars should do this too ... 96 */ 97 if (__m_cc_add(w, y, x, cc, 0, &y, &x) == ERR) { 98 w->_curx = (short) x; 99 w->_cury = (short) y; 100 WSYNC(w); 101 WFLUSH(w); 102 goto error; 103 } 104 } else { 105 /* Convert non-printables into printable representation. */ 106 uc._n = 1; 107 uc._at = cc->_at; 108 uc._co = cc->_co; 109 110 if ((p = wunctrl((cchar_t *)cc)) == NULL) 111 goto error; 112 113 for (; *p != '\0'; ++p) { 114 uc._wc[0] = *p; 115 if (__m_cc_add(w, y, x, &uc, 0, &y, &x) == ERR) 116 goto error; 117 } 118 } 119 120 w->_curx = (short) x; 121 w->_cury = (short) y; 122 123 WSYNC(w); 124 125 code = WFLUSH(w); 126 error: 127 w->_flags = oflags | (w->_flags & ~(W_FLUSH | W_SYNC_UP)); 128 129 return (code); 130 } 131