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analogNode.h
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110 lines (90 loc) · 3.22 KB
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// Filename: analogNode.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 ANALOGNODE_H
#define ANALOGNODE_H
#include "pandabase.h"
#include "clientBase.h"
#include "clientAnalogDevice.h"
#include "dataNode.h"
#include "linmath_events.h"
////////////////////////////////////////////////////////////////////
// Class : AnalogNode
// Description : This is the primary interface to analog controls like
// sliders and joysticks associated with a ClientBase.
// This creates a node that connects to the named analog
// device, if it exists, and provides hooks to the user
// to read the state of any of the sequentially numbered
// controls associated with that device.
//
// Each control can return a value ranging from -1 to 1,
// reflecting the current position of the control within
// its total range of motion.
//
// The user may choose up to two analog controls to
// place on the data graph as the two channels of an
// xy datagram, similarly to the way a mouse places its
// position data. In this way, an AnalogNode may be
// used in place of a mouse.
////////////////////////////////////////////////////////////////////
class EXPCL_PANDA_DEVICE AnalogNode : public DataNode {
PUBLISHED:
AnalogNode(ClientBase *client, const string &device_name);
virtual ~AnalogNode();
INLINE bool is_valid() const;
INLINE int get_num_controls() const;
INLINE double get_control_state(int index) const;
INLINE bool is_control_known(int index) const;
INLINE void set_output(int channel, int index, bool flip);
INLINE void clear_output(int channel);
INLINE int get_output(int channel) const;
INLINE bool is_output_flipped(int channel) const;
public:
virtual void write(ostream &out, int indent_level = 0) const;
private:
class OutputData {
public:
INLINE OutputData();
int _index;
bool _flip;
};
enum { max_outputs = 2 };
OutputData _outputs[max_outputs];
PT(ClientAnalogDevice) _analog;
protected:
// Inherited from DataNode
virtual void do_transmit_data(DataGraphTraverser *trav,
const DataNodeTransmit &input,
DataNodeTransmit &output);
private:
// outputs
int _xy_output;
PT(EventStoreVec2) _xy;
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
DataNode::init_type();
register_type(_type_handle, "AnalogNode",
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 "analogNode.I"
#endif