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// ----------------------------------------------------------
//
// Copyright (C) 2002 Brad Wasson <bard@systemtoolbox.com>
//
// This file is part of 3ddesktop.
//
// 3ddesktop 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.
//
// 3ddesktop 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 3ddesktop; see the file COPYING. If not, write to
// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//
#ifndef _EVENT_HPP
#define _EVENT_HPP
enum event_t {
PROGRAM_START,
ENTRY_MOVEMENT_START,
ENTRY_MOVEMENT_STOP,
EXIT_MOVEMENT_START,
EXIT_MOVEMENT_STOP,
GOTO_FACE_COMPLETE
};
class Event {
private:
public:
// this is the event type that will trigger this event
event_t type;
void (*function) (Event *);
void *data;
int reoccurring;
Event (event_t _type,
void (*_function)(Event *),
void *_data = NULL,
int _reoccurring = 0 )
{
type = _type;
function = _function;
data = _data;
reoccurring = _reoccurring;
};
void activate () {
function(this);
};
};
class EventManager {
private:
list <Event *> events;
public:
EventManager() {};
void print_events_in_queue() {
list<Event *>::iterator k;
for (k = events.begin(); k != events.end(); ++k) {
Event *e = *k;
printf(":: Event %d 0x%x\n", e->type, (unsigned int)(e->function));
}
}
void trigger_event(event_t event) {
// step through events and activate any that are this event.
list<Event *>::iterator k;
bool dont_increment;
k = events.begin();
while (k != events.end()) {
dont_increment = false;
//printf ("^v^v^ trying %d 0x%x\n", (*k)->type, (*k)->function);
if ((*k)->type == event) {
Event *e = *k;
if (!e->reoccurring) {
events.erase(k++);
dont_increment = true;
}
e->activate();
if (!e->reoccurring)
delete e;
}
if (!dont_increment)
++k;
}
};
// step through events and remove any that are this event.
void remove_event(event_t type, void (*function)(Event *))
{
list<Event *>::iterator k;
k = events.begin();
while (k != events.end()) {
if (((*k)->type == type) && ((*k)->function == function)) {
events.erase(k++);
} else {
++k;
}
}
};
void add_event (Event *e) {
events.push_back(e);
};
void add_event (event_t type,
void (*function)(Event *),
void *data = NULL,
int reoccurring = 0)
{
// deleted in trigger_event after activation
Event *e = new Event (type, function, data, reoccurring);
if (!e) {
msgout (ERROR, "out of memory: Event\n");
end_program(-1);
}
events.push_back(e);
}
};
#endif // _EVENT_HPP
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