ripoffline.c revision 1.3.2.2
1 1.3.2.2 pgoyette /* $NetBSD: ripoffline.c,v 1.3.2.2 2017/03/20 06:56:59 pgoyette Exp $ */ 2 1.3.2.2 pgoyette 3 1.3.2.2 pgoyette /*- 4 1.3.2.2 pgoyette * Copyright (c) 2017 The NetBSD Foundation, Inc. 5 1.3.2.2 pgoyette * All rights reserved. 6 1.3.2.2 pgoyette * 7 1.3.2.2 pgoyette * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 pgoyette * by Roy Marples. 9 1.3.2.2 pgoyette * 10 1.3.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 pgoyette * modification, are permitted provided that the following conditions 12 1.3.2.2 pgoyette * are met: 13 1.3.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 pgoyette * documentation and/or other materials provided with the distribution. 18 1.3.2.2 pgoyette * 19 1.3.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.3.2.2 pgoyette * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.3.2.2 pgoyette * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.3.2.2 pgoyette * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.3.2.2 pgoyette * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.3.2.2 pgoyette * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.3.2.2 pgoyette * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.3.2.2 pgoyette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.3.2.2 pgoyette * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.3.2.2 pgoyette * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.3.2.2 pgoyette * POSSIBILITY OF SUCH DAMAGE. 30 1.3.2.2 pgoyette */ 31 1.3.2.2 pgoyette 32 1.3.2.2 pgoyette #include <sys/cdefs.h> 33 1.3.2.2 pgoyette #ifndef lint 34 1.3.2.2 pgoyette __RCSID("$NetBSD: ripoffline.c,v 1.3.2.2 2017/03/20 06:56:59 pgoyette Exp $"); 35 1.3.2.2 pgoyette #endif /* not lint */ 36 1.3.2.2 pgoyette 37 1.3.2.2 pgoyette #include "curses.h" 38 1.3.2.2 pgoyette #include "curses_private.h" 39 1.3.2.2 pgoyette 40 1.3.2.2 pgoyette /* List of ripoffline calls */ 41 1.3.2.2 pgoyette static struct ripoff { 42 1.3.2.2 pgoyette int nlines; 43 1.3.2.2 pgoyette int (*init)(WINDOW *, int); 44 1.3.2.2 pgoyette } ripoffs[MAX_RIPS]; 45 1.3.2.2 pgoyette static int nrips; 46 1.3.2.2 pgoyette 47 1.3.2.2 pgoyette /* 48 1.3.2.2 pgoyette * ripoffline -- 49 1.3.2.2 pgoyette * Ripoff a line from the top of bottom of stdscr. 50 1.3.2.2 pgoyette * Must be called before initscr or newterm. 51 1.3.2.2 pgoyette */ 52 1.3.2.2 pgoyette int 53 1.3.2.2 pgoyette ripoffline(int line, int (*init)(WINDOW *, int)) 54 1.3.2.2 pgoyette { 55 1.3.2.2 pgoyette 56 1.3.2.2 pgoyette #ifdef DEBUG 57 1.3.2.2 pgoyette __CTRACE(__CTRACE_SCREEN, "ripoffline: %d\n", line); 58 1.3.2.2 pgoyette #endif 59 1.3.2.2 pgoyette 60 1.3.2.2 pgoyette if (nrips >= MAX_RIPS || init == NULL) 61 1.3.2.2 pgoyette return ERR; /* This makes sense, but not standards compliant. */ 62 1.3.2.2 pgoyette if (line == 0) 63 1.3.2.2 pgoyette return OK; 64 1.3.2.2 pgoyette ripoffs[nrips].nlines = line < 0 ? -1 : 1; 65 1.3.2.2 pgoyette ripoffs[nrips++].init = init; 66 1.3.2.2 pgoyette return OK; 67 1.3.2.2 pgoyette } 68 1.3.2.2 pgoyette 69 1.3.2.2 pgoyette /* 70 1.3.2.2 pgoyette * __rippedlines -- 71 1.3.2.2 pgoyette * Returns the number of ripped lines from the screen. 72 1.3.2.2 pgoyette */ 73 1.3.2.2 pgoyette int 74 1.3.2.2 pgoyette __rippedlines(const SCREEN *screen) 75 1.3.2.2 pgoyette { 76 1.3.2.2 pgoyette const struct __ripoff *rip; 77 1.3.2.2 pgoyette int i, n; 78 1.3.2.2 pgoyette 79 1.3.2.2 pgoyette n = 0; 80 1.3.2.2 pgoyette for (i = 0, rip = screen->ripped; i < screen->nripped; i++, rip++) { 81 1.3.2.2 pgoyette if (rip->nlines < 0) 82 1.3.2.2 pgoyette n += -rip->nlines; 83 1.3.2.2 pgoyette else 84 1.3.2.2 pgoyette n += rip->nlines; 85 1.3.2.2 pgoyette } 86 1.3.2.2 pgoyette return n; 87 1.3.2.2 pgoyette } 88 1.3.2.2 pgoyette 89 1.3.2.2 pgoyette /* 90 1.3.2.2 pgoyette * __ripoffscreen -- 91 1.3.2.2 pgoyette * Rips lines from the screen by creating a WINDOW per ripoffline call. 92 1.3.2.2 pgoyette * Although the POSIX API only allows for one line WINDOWS to be created, 93 1.3.2.2 pgoyette * this implemenation allows for N lines if needed. 94 1.3.2.2 pgoyette */ 95 1.3.2.2 pgoyette int 96 1.3.2.2 pgoyette __ripoffscreen(SCREEN *screen, int *rtop) 97 1.3.2.2 pgoyette { 98 1.3.2.2 pgoyette int i, nlines; 99 1.3.2.2 pgoyette const struct ripoff *srip; 100 1.3.2.2 pgoyette struct __ripoff *rip; 101 1.3.2.2 pgoyette WINDOW *w; 102 1.3.2.2 pgoyette 103 1.3.2.2 pgoyette *rtop = 0; 104 1.3.2.2 pgoyette rip = screen->ripped; 105 1.3.2.2 pgoyette for (i = 0, srip = ripoffs; i < nrips; i++, srip++) { 106 1.3.2.2 pgoyette if (srip->nlines == 0) 107 1.3.2.2 pgoyette continue; 108 1.3.2.2 pgoyette nlines = srip->nlines < 0 ? -srip->nlines : srip->nlines; 109 1.3.2.2 pgoyette w = __newwin(screen, nlines, 0, 110 1.3.2.2 pgoyette srip->nlines < 0 ? LINES - nlines : *rtop, 111 1.3.2.2 pgoyette 0, FALSE); 112 1.3.2.2 pgoyette if (w != NULL) { 113 1.3.2.2 pgoyette rip->win = w; 114 1.3.2.2 pgoyette rip->nlines = srip->nlines; 115 1.3.2.2 pgoyette rip++; 116 1.3.2.2 pgoyette screen->nripped++; 117 1.3.2.2 pgoyette if (rip->nlines > 0) 118 1.3.2.2 pgoyette (*rtop) += rip->nlines; 119 1.3.2.2 pgoyette LINES -= nlines; 120 1.3.2.2 pgoyette } 121 1.3.2.2 pgoyette if (srip->init(w, COLS) == ERR) 122 1.3.2.2 pgoyette return ERR; 123 1.3.2.2 pgoyette #ifdef DEBUG 124 1.3.2.2 pgoyette if (w != NULL) 125 1.3.2.2 pgoyette __CTRACE(__CTRACE_SCREEN, 126 1.3.2.2 pgoyette "newterm: ripped %d lines from the %s\n", 127 1.3.2.2 pgoyette nlines, srip->nlines < 0 ? "bottom" : "top"); 128 1.3.2.2 pgoyette #endif 129 1.3.2.2 pgoyette } 130 1.3.2.2 pgoyette nrips = 0; /* Reset the stack. */ 131 1.3.2.2 pgoyette return OK; 132 1.3.2.2 pgoyette } 133 1.3.2.2 pgoyette 134 1.3.2.2 pgoyette /* 135 1.3.2.2 pgoyette * __ripoffresize -- 136 1.3.2.2 pgoyette * Called from resizeterm to ensure the ripped off lines are correctly 137 1.3.2.2 pgoyette * placed and refreshed. 138 1.3.2.2 pgoyette */ 139 1.3.2.2 pgoyette void 140 1.3.2.2 pgoyette __ripoffresize(SCREEN *screen) 141 1.3.2.2 pgoyette { 142 1.3.2.2 pgoyette int rbot = screen->LINES, i; 143 1.3.2.2 pgoyette struct __ripoff *rip; 144 1.3.2.2 pgoyette 145 1.3.2.2 pgoyette for (i = 0, rip = screen->ripped; i < screen->nripped; i++, rip++) { 146 1.3.2.2 pgoyette if (rip->nlines > 0) 147 1.3.2.2 pgoyette touchwin(rip->win); 148 1.3.2.2 pgoyette else { 149 1.3.2.2 pgoyette /* Reposition the lower windows. */ 150 1.3.2.2 pgoyette mvwin(rip->win, rbot + rip->nlines, 0); 151 1.3.2.2 pgoyette rbot += rip->nlines; 152 1.3.2.2 pgoyette } 153 1.3.2.2 pgoyette wnoutrefresh(rip->win); 154 1.3.2.2 pgoyette } 155 1.3.2.2 pgoyette } 156 1.3.2.2 pgoyette 157 1.3.2.2 pgoyette /* 158 1.3.2.2 pgoyette * __unripoffline -- 159 1.3.2.2 pgoyette * Used by __slk_init to remove the ripoffline reservation it made 160 1.3.2.2 pgoyette * because the terminal natively supports soft label keys. 161 1.3.2.2 pgoyette */ 162 1.3.2.2 pgoyette int 163 1.3.2.2 pgoyette __unripoffline(int (*init)(WINDOW *, int)) 164 1.3.2.2 pgoyette { 165 1.3.2.2 pgoyette struct ripoff *rip; 166 1.3.2.2 pgoyette int i, unripped = 0; 167 1.3.2.2 pgoyette 168 1.3.2.2 pgoyette for (i = 0, rip = ripoffs; i < nrips; i++, rip++) { 169 1.3.2.2 pgoyette if (rip->init == init) { 170 1.3.2.2 pgoyette rip->nlines = 0; 171 1.3.2.2 pgoyette unripped++; 172 1.3.2.2 pgoyette } 173 1.3.2.2 pgoyette } 174 1.3.2.2 pgoyette return unripped; 175 1.3.2.2 pgoyette } 176
Indexes created Tue Sep 30 20:09:53 GMT 2025