Panda3D
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clientDialDevice.h
00001 // Filename: clientDialDevice.h
00002 // Created by:  drose (26Jan01)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef CLIENTDIALDEVICE_H
00016 #define CLIENTDIALDEVICE_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "clientDevice.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : ClientDialDevice
00024 // Description : A device, attached to the ClientBase by a
00025 //               DialNode, that records the data from a single
00026 //               named dial device.  The named device can contain
00027 //               any number of dials, numbered in sequence beginning
00028 //               at zero.
00029 //
00030 //               A dial is a rotating device that does not have
00031 //               stops--it can keep rotating any number of times.
00032 //               Therefore it does not have a specific position at any
00033 //               given time, unlike an AnalogDevice.
00034 ////////////////////////////////////////////////////////////////////
00035 class EXPCL_PANDA_DEVICE ClientDialDevice : public ClientDevice {
00036 protected:
00037   INLINE ClientDialDevice(ClientBase *client, const string &device_name);
00038 
00039 public:
00040   INLINE int get_num_dials() const;
00041 
00042   INLINE void push_dial(int index, double offset);
00043   INLINE double read_dial(int index);
00044   INLINE bool is_dial_known(int index) const;
00045 
00046 private:
00047   void ensure_dial_index(int index);
00048 
00049 protected:
00050   class DialState {
00051   public:
00052     INLINE DialState();
00053 
00054     double _offset;
00055     bool _known;
00056   };
00057 
00058   typedef pvector<DialState> Dials;
00059   Dials _dials;
00060 
00061 
00062 public:
00063   static TypeHandle get_class_type() {
00064     return _type_handle;
00065   }
00066   static void init_type() {
00067     ClientDevice::init_type();
00068     register_type(_type_handle, "ClientDialDevice",
00069                   ClientDevice::get_class_type());
00070   }
00071   virtual TypeHandle get_type() const {
00072     return get_class_type();
00073   }
00074   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00075 
00076 private:
00077   static TypeHandle _type_handle;
00078 };
00079 
00080 #include "clientDialDevice.I"
00081 
00082 #endif
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