/* $Id: drv_Curses.c,v 1.3 2004/06/05 06:13:11 reinelt Exp $ * * pure ncurses based text driver * * Copyright 2004 Michael Reinelt * Copyright 2004 The LCD4Linux Team * * based on the old Curses/Text driver which is * Copyright 2001 Leopold Toetsch * * This file is part of LCD4Linux. * * LCD4Linux is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * LCD4Linux is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * * $Log: drv_Curses.c,v $ * Revision 1.3 2004/06/05 06:13:11 reinelt * * splash screen for all text-based display drivers * * Revision 1.2 2004/06/02 09:41:19 reinelt * * prepared support for startup splash screen * * Revision 1.1 2004/05/26 11:37:36 reinelt * * Curses driver ported. * */ /* * * exported fuctions: * * struct DRIVER drv_Curses * */ #include "config.h" #include #include #include #include #include #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "plugin.h" #include "widget.h" #include "widget_text.h" #include "widget_bar.h" #include "drv.h" #include "drv_generic_text.h" static char Name[]="Curses"; static WINDOW *w = NULL; static WINDOW *e = NULL; static int EROWS; // **************************************** // *** hardware dependant functions *** // **************************************** static void drv_Curs_clear (void) { werase (w); box (w, 0, 0); wrefresh (w); } static void drv_Curs_write (int row, int col, unsigned char *data, int len) { char *p; while ((p = strpbrk(data, "\r\n")) != NULL) { *p = '\0'; } if (col < DCOLS) { if (DCOLS-col < len ) len = DCOLS-col; mvwprintw(w, row+1 , col+1, "%.*s", DCOLS-col, data); wmove(w, DROWS+1, 0); wrefresh(w); } } static void drv_Curs_defchar (int ascii, unsigned char *buffer) { // empty } /* ncures scroll SIGSEGVs on my system, so this is a workaroud */ int curses_error(char *buffer) { static int lines = 0; static char *lb[100]; int start, i; char *p; if (e == NULL) return 0; // replace \r, \n with underscores while ((p = strpbrk(buffer, "\r\n")) != NULL) { *p='_'; } if (lines >= EROWS) { free(lb[0]); for (i = 1; i <= EROWS; i++) { lb[i-1] = lb[i]; } start = 0; } else { start = lines; } lb[lines] = strdup(buffer); for (i = start; i <= lines; i++) { mvwprintw(e, i+1, 1, "%s", lb[i]); wclrtoeol(e); } box(e, 0, 0); mvwprintw(e, 0, 3, "Stderr:"); wrefresh(e); if (lines < EROWS) lines++; return 1; } static int drv_Curs_start (char *section, int quiet) { char *s; if (!running_foreground) { error("%s: You want me to display on /dev/null? Sorry, I can't ...", Name); error("%s: Maybe you want me to run in foreground? Try '-F'", Name); return -1; } s = cfg_get(section, "Size", "20x4"); if (s == NULL || *s == '\0') { error ("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); free(s); return -1; } if (sscanf(s, "%dx%d", &DCOLS, &DROWS) != 2 || DROWS < 1 || DCOLS < 1) { error ("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source); free(s); return -1; } free (s); initscr(); debug ("%s: curses thinks that COLS=%d LINES=%d", Name, COLS, LINES); w = newwin(DROWS+2, DCOLS+2, 0, 0); EROWS = LINES-DROWS-3; if (EROWS > 99) EROWS = 99; debug ("EROWS=%d", EROWS); if (EROWS >= 4) { e = newwin (EROWS, COLS, DROWS+3, 0); EROWS -= 3; box(e, 0, 0); mvwprintw (e, 0, 3, "Stderr:"); wmove(e, 1 , 0); wrefresh(e); } drv_Curs_clear(); if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); if (drv_generic_text_greet (buffer)) { sleep (3); drv_Curs_clear(); } } return 0; } // **************************************** // *** plugins *** // **************************************** // none at the moment... // **************************************** // *** widget callbacks *** // **************************************** // using drv_generic_text_draw(W) // using drv_generic_text_bar_draw(W) // **************************************** // *** exported functions *** // **************************************** // list models int drv_Curs_list (void) { printf ("any"); return 0; } // initialize driver & display int drv_Curs_init (char *section, int quiet) { WIDGET_CLASS wc; int ret; // display preferences XRES = 1; // pixel width of one char YRES = 1; // pixel height of one char CHARS = 0; // number of user-defineable characters CHAR0 = 0; // ASCII of first user-defineable char GOTO_COST = 0; // number of bytes a goto command requires // real worker functions drv_generic_text_real_write = drv_Curs_write; drv_generic_text_real_defchar = drv_Curs_defchar; // start display if ((ret = drv_Curs_start (section, quiet)) != 0) { return ret; } // initialize generic text driver if ((ret = drv_generic_text_init(section, Name)) != 0) return ret; // initialize generic bar driver if ((ret = drv_generic_text_bar_init(1)) != 0) return ret; // add fixed chars to the bar driver drv_generic_text_bar_add_segment ( 0, 0,255, 32); // ASCII 32 = blank drv_generic_text_bar_add_segment (255,255,255,'*'); // asterisk // register text widget wc = Widget_Text; wc.draw = drv_generic_text_draw; widget_register(&wc); // register bar widget wc = Widget_Bar; wc.draw = drv_generic_text_bar_draw; widget_register(&wc); // register plugins // none at the moment... return 0; } // close driver & display int drv_Curs_quit (void) { info("%s: shutting down.", Name); drv_generic_text_quit(); // clear display drv_Curs_clear(); // say goodbye... drv_generic_text_greet ("goodbye!"); endwin(); return (0); } DRIVER drv_Curses = { name: Name, list: drv_Curs_list, init: drv_Curs_init, quit: drv_Curs_quit, };