60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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/** Base class for an entity that provides access to a blocks topology.
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@tags{Blocks}
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*/
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class TopologySource
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{
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public:
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//==========================================================================
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/** Destructor. */
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virtual ~TopologySource() {}
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/** Returns the current topology that this object manages. */
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virtual BlockTopology getCurrentTopology() const = 0;
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//==========================================================================
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/** Used to receive callbacks for topology changes */
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struct Listener
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{
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virtual ~Listener() {}
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virtual void topologyChanged() = 0;
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};
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void addListener (Listener* l) { listeners.add (l); }
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void removeListener (Listener* l) { listeners.remove (l); }
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/** Invoke this to force touches-off on all physical devices. */
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virtual void cancelAllActiveTouches() noexcept {}
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protected:
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//==========================================================================
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juce::ListenerList<Listener> listeners;
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};
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} // namespace juce
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