5e8d5b221b
Has the limitation that one object can only subscribe once to one option value, but that shouldn't actually be a problem. (One object cannot have two different of its member functions subscribing to one option value.) Originally committed to SVN as r4415.
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
// Copyright (c) 2010, Niels M Hansen <nielsm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// $Id$
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/// @file option_value.cpp
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/// @brief Container for holding an actual option value.
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/// @ingroup libaegisub
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#include "libaegisub/option_value.h"
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namespace agi {
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void OptionValue::NotifyChanged() {
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for (ChangeListenerSet::const_iterator nfcb = listeners.begin(); nfcb != listeners.end(); ++nfcb) {
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nfcb->first->*(nfcb->second);
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}
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}
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void OptionValue::Subscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent function) {
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assert(listeners.find(listener) == listeners.end());
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listeners[listener] = function;
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}
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void OptionValue::Unsubscribe(OptionValueListener *listener, OptionValueListener::ChangeEvent function) {
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assert(listeners.find(listener) != listeners.end() && listeners[listener] == function);
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listeners.erase(listener);
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}
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};
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