1274116Sdteske/*- 2274116Sdteske * Copyright (c) 2013-2014 Devin Teske <dteske@FreeBSD.org> 3274116Sdteske * All rights reserved. 4274116Sdteske * 5274116Sdteske * Redistribution and use in source and binary forms, with or without 6274116Sdteske * modification, are permitted provided that the following conditions 7274116Sdteske * are met: 8274116Sdteske * 1. Redistributions of source code must retain the above copyright 9274116Sdteske * notice, this list of conditions and the following disclaimer. 10274116Sdteske * 2. Redistributions in binary form must reproduce the above copyright 11274116Sdteske * notice, this list of conditions and the following disclaimer in the 12274116Sdteske * documentation and/or other materials provided with the distribution. 13274116Sdteske * 14274116Sdteske * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15274116Sdteske * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16274116Sdteske * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17274116Sdteske * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18274116Sdteske * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19274116Sdteske * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20274116Sdteske * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21274116Sdteske * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22274116Sdteske * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23274116Sdteske * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24274116Sdteske * SUCH DAMAGE. 25274116Sdteske */ 26274116Sdteske 27274116Sdteske#include <sys/cdefs.h> 28274116Sdteske__FBSDID("$FreeBSD$"); 29274116Sdteske 30274116Sdteske#include <curses.h> 31274116Sdteske#include <dialog.h> 32274116Sdteske#include <stdarg.h> 33274116Sdteske#include <stdlib.h> 34274116Sdteske#include <string.h> 35274116Sdteske 36274116Sdteske#include "dialog_util.h" 37274116Sdteske#include "status.h" 38274116Sdteske 39274116Sdteske/* static globals */ 40274116Sdteskestatic char *status_buf = NULL; 41274116Sdteskestatic int status_bufsize = -1; 42274116Sdteskestatic int status_row; 43274116Sdteskestatic int status_width; 44274116Sdteske 45274116Sdteske/* 46274116Sdteske * Print a `one-liner' status message at the bottom of the screen. Messages are 47274116Sdteske * trimmed to fit within the console length (ANSI coloring not accounted for). 48274116Sdteske */ 49274116Sdteskevoid 50274116Sdteskestatus_printf(const char *fmt, ...) 51274116Sdteske{ 52274116Sdteske int n, attrs; 53274116Sdteske chtype color = dlg_color_pair(dlg_color_table[BUTTON_ACTIVE_ATTR].fg, 54274116Sdteske dlg_color_table[SCREEN_ATTR].bg) | A_BOLD; 55274116Sdteske va_list args; 56274116Sdteske 57274116Sdteske status_row = tty_maxrows() - 1; 58274116Sdteske status_width = tty_maxcols(); 59274116Sdteske 60274116Sdteske /* NULL is a special convention meaning "erase the old stuff" */ 61274116Sdteske if (fmt == NULL) { 62274116Sdteske move(status_row, 0); 63274116Sdteske clrtoeol(); 64274116Sdteske return; 65274116Sdteske } 66274116Sdteske 67274116Sdteske /* Resize buffer if terminal width is greater */ 68274116Sdteske if ((status_width + 1) > status_bufsize) { 69274116Sdteske status_buf = realloc(status_buf, status_width + 1); 70274116Sdteske if (status_buf == NULL) { 71274116Sdteske status_bufsize = -1; 72274116Sdteske return; 73274116Sdteske } 74274116Sdteske status_bufsize = status_width + 1; 75274116Sdteske } 76274116Sdteske 77274116Sdteske /* Print the message within a space-filled buffer */ 78274116Sdteske memset(status_buf, ' ', status_width); 79274116Sdteske va_start(args, fmt); 80274116Sdteske n = vsnprintf(status_buf, status_width + 1, fmt, args); 81274116Sdteske va_end(args); 82274116Sdteske 83274116Sdteske /* If vsnprintf(3) produced less bytes than the maximum, change the 84274116Sdteske * implicitly-added NUL-terminator into a space and terminate at max */ 85274116Sdteske if (n < status_width) { 86274116Sdteske status_buf[n] = ' '; 87274116Sdteske status_buf[status_width] = '\0'; 88274116Sdteske } 89274116Sdteske 90274116Sdteske /* Print text in screen bg, button active fg, and bold */ 91274116Sdteske attrs = getattrs(stdscr); 92274116Sdteske attrset(color); 93274116Sdteske mvaddstr(status_row, 0, status_buf); 94274116Sdteske attrset(attrs); 95274116Sdteske 96274116Sdteske /* Seat the cursor over the last character at absolute lower-right */ 97274116Sdteske move(status_row, status_width - 1); 98274116Sdteske refresh(); 99274116Sdteske} 100274116Sdteske 101274116Sdteske/* 102274116Sdteske * Free allocated items initialized by status_printf() 103274116Sdteske */ 104274116Sdteskevoid 105274116Sdteskestatus_free(void) 106274116Sdteske{ 107274116Sdteske if (status_buf != NULL) { 108274116Sdteske free(status_buf); 109274116Sdteske status_buf = NULL; 110274116Sdteske } 111274116Sdteske} 112