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 * mvwin.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/mvwin.c 1.3 " 41 "1995/06/15 19:19:58 ant Exp $"; 42 #endif 43 #endif 44 45 #include <private.h> 46 47 /* 48 * Move window so that the upper left-hand corner is at (x,y). If the move 49 * would cause the window to be off the screen, it is an error and the 50 * window is not moved. Moving subwindows is allowed, but should be 51 * avoided. 52 */ 53 int 54 mvwin(WINDOW *w, int by, int bx) 55 { 56 int i, dx, dy; 57 WINDOW *parent = w->_parent; 58 59 /* Check lower bounds of new window position. */ 60 if (by < 0 || bx < 0) 61 return (ERR); 62 63 if (parent == NULL) { 64 /* Check upper bounds of normal window. */ 65 if (lines < by + w->_maxy || columns < bx + w->_maxx) 66 return (ERR); 67 } else { 68 /* Check upper bounds of sub-window. */ 69 if (parent->_begy + parent->_maxy < by + w->_maxy || 70 parent->_begx + parent->_maxx < bx + w->_maxx) 71 return (ERR); 72 73 /* 74 * Move the sub-window's line pointers to the parent 75 * window's data. 76 */ 77 dy = by - parent->_begy; 78 dx = bx - parent->_begx; 79 80 for (i = 0; i <= w->_maxy; ++i) 81 w->_line[i] = &parent->_line[dy++][dx]; 82 } 83 84 w->_begy = (short) by; 85 w->_begx = (short) bx; 86 (void) wtouchln(w, 0, w->_maxy, 1); 87 88 return (OK); 89 } 90 91 int 92 mvderwin(WINDOW *w, int py, int px) 93 { 94 int code; 95 WINDOW *parent; 96 97 parent = w->_parent; 98 99 if (parent == NULL) 100 return (ERR); 101 102 /* Absolute screen address. */ 103 py += parent->_begy; 104 px += parent->_begx; 105 106 code = mvwin(w, py, px); 107 108 return (code); 109 } 110