From 5ca4d384ecc4ff55cc61a1b9145f83aedf3d6406 Mon Sep 17 00:00:00 2001 From: reinelt <> Date: Wed, 26 May 2004 11:37:36 +0000 Subject: [lcd4linux @ 2004-05-26 11:37:35 by reinelt] Curses driver ported. --- drv_Curses.c | 283 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 283 insertions(+) create mode 100644 drv_Curses.c (limited to 'drv_Curses.c') diff --git a/drv_Curses.c b/drv_Curses.c new file mode 100644 index 0000000..8c94668 --- /dev/null +++ b/drv_Curses.c @@ -0,0 +1,283 @@ +/* $Id: drv_Curses.c,v 1.1 2004/05/26 11:37:36 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 1.1 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 "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_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); + box(w, 0, 0); + 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) +{ + 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); + } + + werase (w); + box (w, 0, 0); + wrefresh (w); + + 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) +{ + 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)) != 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(); + endwin(); + + return (0); +} + + +DRIVER drv_Curses = { + name: Name, + list: drv_Curs_list, + init: drv_Curs_init, + quit: drv_Curs_quit, +}; + -- cgit v1.2.3