Aegisub/aegisub/libaegisub/common/option_value.cpp
Thomas Goyne 0248e7c754 Add listeners for most non-audio options that need them. Closes #1047.
Originally committed to SVN as r4764.
2010-08-26 18:38:37 +00:00

45 lines
1.4 KiB
C++

// Copyright (c) 2010, Niels M Hansen <nielsm@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file option_value.cpp
/// @brief Container for holding an actual option value.
/// @ingroup libaegisub
#ifndef LAGI_PRE
#include <assert.h>
#endif
#include "libaegisub/option_value.h"
namespace agi {
void OptionValue::NotifyChanged() {
for (ChangeListenerSet::const_iterator nfcb = listeners.begin(); nfcb != listeners.end(); ++nfcb) {
nfcb->second(*this);
}
}
void OptionValue::Subscribe(void *key, ChangeListener listener) {
assert(listeners.find(key) == listeners.end());
listeners[key] = listener;
}
void OptionValue::Unsubscribe(void *key) {
assert(listeners.find(key) != listeners.end());
listeners.erase(key);
}
}