79 lines
2 KiB
C
79 lines
2 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file dialNode.h
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* @author drose
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* @date 2002-03-12
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*/
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#ifndef DIALNODE_H
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#define DIALNODE_H
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#include "pandabase.h"
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#include "clientBase.h"
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#include "clientDialDevice.h"
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#include "dataNode.h"
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/**
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* This is the primary interface to infinite dial type devices associated with
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* a ClientBase. This creates a node that connects to the named dial device,
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* if it exists, and provides hooks to the user to read the state of any of
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* the sequentially numbered dial controls associated with that device.
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*
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* A dial is a rotating device that does not have stops--it can keep rotating
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* any number of times. Therefore it does not have a specific position at any
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* given time, unlike an AnalogDevice.
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*/
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class EXPCL_PANDA_DEVICE DialNode : public DataNode {
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PUBLISHED:
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explicit DialNode(ClientBase *client, const std::string &device_name);
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virtual ~DialNode();
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INLINE bool is_valid() const;
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INLINE int get_num_dials() const;
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INLINE double read_dial(int index);
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INLINE bool is_dial_known(int index) const;
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private:
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PT(ClientDialDevice) _dial;
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protected:
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// Inherited from DataNode
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virtual void do_transmit_data(DataGraphTraverser *trav,
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const DataNodeTransmit &input,
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DataNodeTransmit &output);
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private:
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// no inputs or outputs at the moment.
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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DataNode::init_type();
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register_type(_type_handle, "DialNode",
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DataNode::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "dialNode.I"
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#endif
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