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dialNode.h
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83 lines (68 loc) · 2.45 KB
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// Filename: dialNode.h
// Created by: drose (12Mar02)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) Carnegie Mellon University. All rights reserved.
//
// All use of this software is subject to the terms of the revised BSD
// license. You should have received a copy of this license along
// with this source code in a file named "LICENSE."
//
////////////////////////////////////////////////////////////////////
#ifndef DIALNODE_H
#define DIALNODE_H
#include "pandabase.h"
#include "clientBase.h"
#include "clientDialDevice.h"
#include "dataNode.h"
////////////////////////////////////////////////////////////////////
// Class : DialNode
// Description : This is the primary interface to infinite dial type
// devices associated with a ClientBase. This creates a
// node that connects to the named dial device, if it
// exists, and provides hooks to the user to read the
// state of any of the sequentially numbered dial
// controls associated with that device.
//
// A dial is a rotating device that does not have
// stops--it can keep rotating any number of times.
// Therefore it does not have a specific position at any
// given time, unlike an AnalogDevice.
////////////////////////////////////////////////////////////////////
class EXPCL_PANDA_DEVICE DialNode : public DataNode {
PUBLISHED:
DialNode(ClientBase *client, const string &device_name);
virtual ~DialNode();
INLINE bool is_valid() const;
INLINE int get_num_dials() const;
INLINE double read_dial(int index);
INLINE bool is_dial_known(int index) const;
private:
PT(ClientDialDevice) _dial;
protected:
// Inherited from DataNode
virtual void do_transmit_data(DataGraphTraverser *trav,
const DataNodeTransmit &input,
DataNodeTransmit &output);
private:
// no inputs or outputs at the moment.
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
DataNode::init_type();
register_type(_type_handle, "DialNode",
DataNode::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
};
#include "dialNode.I"
#endif