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/*
winnie - an experimental window system
Copyright (C) 2013 Eleni Maria Stea
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 3 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, see <http://www.gnu.org/licenses/>.
Author: Eleni Maria Stea <elene.mst@gmail.com>
*/
#ifdef WINNIE_FBDEV
#include <list>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <sys/select.h>
#include <sys/time.h>
#include "event.h"
#include "wm.h"
#include "keyboard.h"
#include "mouse.h"
struct TimerEvent {
long time;
Window *win;
TimerMode mode;
long interval;
bool operator <(const TimerEvent &rhs) const { return time < rhs.time; }
};
static std::list<TimerEvent> timers;
void process_events()
{
int keyb_fd = get_keyboard_fd();
int mouse_fd = get_mouse_fd();
for(;;) {
wm->process_windows();
fd_set read_set;
FD_ZERO(&read_set);
FD_SET(keyb_fd, &read_set);
FD_SET(mouse_fd, &read_set);
int maxfd = keyb_fd > mouse_fd ? keyb_fd : mouse_fd;
struct timeval *timeout = 0;
struct timeval tv;
if(!timers.empty()) {
long now = winnie_get_time();
long next_timer = timers.front().time - now;
tv.tv_sec = next_timer / 1000;
tv.tv_usec = next_timer % 1000;
timeout = &tv;
}
int numfd;
while((numfd = select(maxfd + 1, &read_set, 0, 0, timeout)) == -1) {
if(errno != EINTR) {
break;
}
}
if(numfd > 0) {
if(FD_ISSET(keyb_fd, &read_set)) {
process_keyboard_event();
}
if(FD_ISSET(mouse_fd, &read_set)) {
process_mouse_event();
}
}
bool added_timer = false;
long now = winnie_get_time();
while(!timers.empty() && now >= timers.front().time) {
TimerEvent ev = timers.front();
timers.pop_front();
if(ev.mode == TIMER_REPEAT) {
ev.time = now + ev.interval;
timers.push_back(ev);
added_timer = true;
}
Window *win = ev.win;
TimerFuncType func = win->get_timer_callback();
if(func) {
func(win);
} else {
fprintf(stderr, "timer gone off but window has no timer callback\n");
}
}
if(added_timer) {
timers.sort();
}
}
}
void set_window_timer(Window *win, unsigned int msec, TimerMode mode)
{
if(!win) {
fprintf(stderr, "set_window_timer null window\n");
return;
}
if(!win->get_timer_callback()) {
fprintf(stderr, "trying to start a timer without having a timer callback\n");
return;
}
TimerEvent ev;
ev.interval = (long)msec;
ev.time = winnie_get_time() + ev.interval;
ev.win = win;
ev.mode = mode;
timers.push_back(ev);
timers.sort();
}
#endif // WINNIE_FBDEV
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