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notify.cpp
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notify.cpp
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/* -*- Mode: C++; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*-
*
* Quadra, an action puzzle game
* Copyright (C) 1998-2000 Ludus Design
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "types.h"
#include "error.h"
#include "notify.h"
using std::vector;
void Observable::add_watch(Notifyable *n) {
notes.push_back(n);
}
void Observable::remove_watch(Notifyable *n) {
vector<Notifyable*>::iterator it(notes.begin());
while (it != notes.end())
if (*it == n)
it = notes.erase(it);
else
++it;
}
void Observable::notify_all() {
for (int i = 0; i < notes.size(); ++i)
notes[i]->notify();
}
Observable::~Observable() {
if (!notes.empty())
skelton_msgbox("Observable %p was destroyed while still watched (%i watchers)\n", this, notes.size());
}