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- #ifndef K3DSDK_SIGNAL_SLOTS_H
- #define K3DSDK_SIGNAL_SLOTS_H
-
- // K-3D
- // Copyright (c) 1995-2005, Timothy M. Shead
- //
- // Contact: tshead@k-3d.com
- //
- // 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 2 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, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- namespace k3d
- {
-
- class ihint;
-
- namespace signal
- {
-
- template<typename SignalT>
- class loop_safe_slot
- {
- public:
- loop_safe_slot(SignalT& Signal) :
- signal(Signal),
- emitting(false)
- {
- }
-
- void operator()()
- {
- if(emitting)
- return;
-
- emitting = true;
- signal.emit();
- emitting = false;
- }
-
- void operator()(ihint* const Hint)
- {
- if(emitting)
- return;
-
- emitting = true;
- signal.emit(Hint);
- emitting = false;
- }
-
- private:
- SignalT& signal;
- bool emitting;
- };
-
- template<typename SignalT>
- loop_safe_slot<SignalT> make_loop_safe_slot(SignalT& Signal)
- {
- return loop_safe_slot<SignalT>(Signal);
- }
-
- } // namespace signal
-
- } // namespace k3d
-
- #endif // !K3DSDK_SIGNAL_SLOTS_H
-
-
-