From 181cec4348da40331b3e8ab365732c025ec149b2 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Wed, 27 Apr 2011 19:24:15 +0200 Subject: Import upstream version 0.11.0~svn1143 --- drv_Curses.c | 373 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 373 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..2e00210 --- /dev/null +++ b/drv_Curses.c @@ -0,0 +1,373 @@ +/* $Id: drv_Curses.c 975 2009-01-18 11:16:20Z michael $ + * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_Curses.c $ + * + * pure ncurses based text driver + * + * Copyright (C) 2004 Michael Reinelt + * Copyright (C) 2004 The LCD4Linux Team + * + * based on the old Curses/Text driver which is + * Copyright (C) 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. + * + */ + +/* + * + * exported fuctions: + * + * struct DRIVER drv_Curses + * + */ + +#include "config.h" + +#include +#include +#include +#include + +#include + +#include "debug.h" +#include "cfg.h" +#include "qprintf.h" +#include "timer.h" +#include "plugin.h" +#include "widget.h" +#include "widget_text.h" +#include "widget_bar.h" +#include "widget_keypad.h" +#include "drv.h" +#include "drv_generic_text.h" +#include "drv_generic_keypad.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(const int row, const int col, const char *data, const int len) +{ + int l = len; + char *p; + + while ((p = strpbrk(data, "\r\n")) != NULL) { + *p = '\0'; + } + + if (col < DCOLS) { + if (DCOLS - col < l) + l = DCOLS - col; + mvwprintw(w, row + 1, col + 1, "%.*s", l, data); + wmove(w, DROWS + 1, 0); + wrefresh(w); + } +} + + +static void drv_Curs_defchar(const __attribute__ ((unused)) + int ascii, const __attribute__ ((unused)) + 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(const char *section, const 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(); + noecho(); + debug("%s: curses thinks that COLS=%d LINES=%d", Name, COLS, LINES); + w = newwin(DROWS + 2, DCOLS + 2, 0, 0); + keypad(w, TRUE); + nodelay(w, TRUE); + + 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, NULL)) { + sleep(3); + drv_Curs_clear(); + } + } + + return 0; +} + +static void drv_Curs_timer(void __attribute__ ((unused)) * notused) +{ + int c; + while (1) { + c = wgetch(w); + if (c <= 0) + break; + drv_generic_keypad_press(c); + } +} + +static int drv_Curs_keypad(const int num) +{ + int val = 0; + + switch (num) { + case KEY_UP: + debug("Key Up"); + val += WIDGET_KEY_PRESSED; + val += WIDGET_KEY_UP; + break; + case KEY_DOWN: + debug("Key Down"); + val += WIDGET_KEY_PRESSED; + val += WIDGET_KEY_DOWN; + break; + case KEY_LEFT: + debug("Key Left"); + val += WIDGET_KEY_PRESSED; + val += WIDGET_KEY_LEFT; + break; + case KEY_RIGHT: + debug("Key Right"); + val += WIDGET_KEY_PRESSED; + val += WIDGET_KEY_RIGHT; + break; + default: + debug("Unbound Key '%d'", num); + break; + } + + return val; +} + + +/****************************************/ +/*** plugins ***/ +/****************************************/ + +/* none at the moment... */ + + +/****************************************/ +/*** widget callbacks ***/ +/****************************************/ + +/* using drv_generic_text_draw(W) */ +/* using drv_generic_text_bar_draw(W) */ +/* using drv_generic_keypad_draw(W) */ + + +/****************************************/ +/*** exported functions ***/ +/****************************************/ + + +/* list models */ +int drv_Curs_list(void) +{ + printf("pure ncurses based text driver"); + return 0; +} + + +/* initialize driver & display */ +int drv_Curs_init(const char *section, const int quiet) +{ + WIDGET_CLASS wc; + int ret; + + info("%s: %s", Name, "$Rev: 975 $"); + + /* 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; + drv_generic_keypad_real_press = drv_Curs_keypad; + + /* regularly process display answers */ + timer_add(drv_Curs_timer, NULL, 100, 0); + + /* 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; + + /* initialize generic key pad driver */ + if ((ret = drv_generic_keypad_init(section, Name)) != 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(const int quiet) +{ + + info("%s: shutting down.", Name); + + drv_generic_text_quit(); + drv_generic_keypad_quit(); + + /* clear display */ + drv_Curs_clear(); + + /* say goodbye... */ + if (!quiet) { + drv_generic_text_greet("goodbye!", NULL); + } + + endwin(); + + return (0); +} + + +DRIVER drv_Curses = { + .name = Name, + .list = drv_Curs_list, + .init = drv_Curs_init, + .quit = drv_Curs_quit, +}; -- cgit v1.2.3