86 lines
2.1 KiB
Text
86 lines
2.1 KiB
Text
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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 clientDialDevice.I
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* @author drose
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* @date 2001-01-26
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*/
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/**
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*
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*/
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INLINE ClientDialDevice::DialState::
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DialState() :
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_offset(0.0),
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_known(false)
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{
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}
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/**
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*
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*/
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INLINE ClientDialDevice::
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ClientDialDevice(ClientBase *client, const std::string &device_name):
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ClientDevice(client, get_class_type(), device_name)
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{
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}
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/**
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* Returns the number of dial dials known to the ClientDialDevice. This
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* number may change as more dials are discovered.
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*/
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INLINE int ClientDialDevice::
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get_num_dials() const {
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return _dials.size();
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}
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/**
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* Marks that the dial has been offset by the indicated amount. It is the
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* user's responsibility to ensure that this call is protected within
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* acquire().
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*/
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INLINE void ClientDialDevice::
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push_dial(int index, double offset) {
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ensure_dial_index(index);
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nassertv(index >= 0 && index < (int)_dials.size());
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_dials[index]._offset += offset;
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_dials[index]._known = true;
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}
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/**
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* Returns the number of complete revolutions of the dial since the last time
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* read_dial() was called. This is a destructive operation; it is not
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* possible to read the dial without resetting the counter.
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*
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* It is the user's responsibility to ensure that this call is protected
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* within acquire().
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*/
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INLINE double ClientDialDevice::
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read_dial(int index) {
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if (index >= 0 && index < (int)_dials.size()) {
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double result = _dials[index]._offset;
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_dials[index]._offset = 0.0;
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return result;
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} else {
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return 0.0;
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}
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}
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/**
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* Returns true if the state of the indicated dial dial is known, or false if
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* we have never heard anything about this particular dial.
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*/
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INLINE bool ClientDialDevice::
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is_dial_known(int index) const {
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if (index >= 0 && index < (int)_dials.size()) {
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return _dials[index]._known;
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} else {
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return false;
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}
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}
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