/*** $Id: dummy.c,v 1.4 2003/09/04 03:38:25 weiym Exp $**** dummy.c: The dummy IAL engine.** ** Copyright (C) 2003 Feynman Software.** Copyright (C) 2001 ~ 2002 Wei Yongming.**** Created by Wei Yongming, 2001/09/13*//*** This program 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 of the License, or** (at your option) any later version.**** This program 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include <sys/time.h>#include <sys/types.h>#include <sys/poll.h>#include "common.h"#ifdef _DUMMY_IAL#include "misc.h"#include "ial.h"#include "dummy.h"static int mouse_fd = -1;static int mouse_x, mouse_y, mouse_button;typedef struct tagPOS{	short x;	short y;	short b;} POS;/************************  Low Level Input Operations **********************//* * Mouse operations -- Event */static int mouse_update(void){	return 1;}static void mouse_getxy (int* x, int* y){	*x = mouse_x;    *y = mouse_y;}static int mouse_getbutton(void){	return mouse_button;}static int keyboard_update(void){	return 0;}static const char * keyboard_get_state (void){	return NULL;}#ifdef _LITE_VERSION static int wait_event (int which, int maxfd, fd_set *in, fd_set *out, fd_set *except,                struct timeval *timeout){    POS pos;	fd_set rfds;	int	e;    if (!in) {        in = &rfds;        FD_ZERO (in);    }	if (which & IAL_MOUSEEVENT && mouse_fd >= 0) {		FD_SET (mouse_fd, in);        if (mouse_fd > maxfd) maxfd = mouse_fd;	}	e = select (maxfd + 1, in, out, except, timeout) ;	if (e > 0) { 		if (mouse_fd >= 0 && FD_ISSET (mouse_fd, in)) {            FD_CLR (mouse_fd, in);			read (mouse_fd, &pos, sizeof (POS));			if (pos.x != -1 && pos.y != -1) {				mouse_x = pos.x;				mouse_y = pos.y;			}			pos.b = ( pos.b > 0 ? 4:0);			return IAL_MOUSEEVENT;		}	} else if (e < 0) {		return -1;	}	return 0;}#elsestatic int wait_event (int which, fd_set *in, fd_set *out, fd_set *except,                struct timeval *timeout){	return 0;}#endifBOOL InitDummyInput (INPUT* input, const char* mdev, const char* mtype){#if 0    /* open input device(s) here */	mouse_fd = open ("/dev/mouse", O_RDONLY);    if (mouse_fd < 0) {        fprintf (stderr, "IAL: Can not open mouse-like device!\n");        return FALSE;    }#endif    input->update_mouse = mouse_update;    input->get_mouse_xy = mouse_getxy;    input->set_mouse_xy = NULL;    input->get_mouse_button = mouse_getbutton;    input->set_mouse_range = NULL;    input->update_keyboard = keyboard_update;    input->get_keyboard_state = keyboard_get_state;    input->set_leds = NULL;    input->wait_event = wait_event;	mouse_x = 0;	mouse_y = 0;	mouse_button= 0;    return TRUE;}void TermDummyInput (void){	if (mouse_fd >= 0)		close (mouse_fd);}#endif /* _DUMMY_IAL */