Source

Coin / src / engines / SoElapsedTime.cpp

Morten Eriksen 08431c9 
Marius Kintel 3ba6b41 




























Morten Eriksen 08431c9 

Morten Eriksen c53114c 



Morten Eriksen ebe2ef9 





Morten Eriksen 8ea42b8 



Tom Fredrik Blen… c472387 
Morten Eriksen 8ea42b8 










Morten Eriksen ebe2ef9 
Morten Eriksen c53114c 

Morten Eriksen 8ea42b8 

Morten Eriksen 08431c9 
Morten Eriksen 8ea42b8 
Tom Fredrik Blen… c472387 

Morten Eriksen 08431c9 
Morten Eriksen 8ea42b8 

Morten Eriksen 08431c9 
Lars J. Aas 92263e4 

Morten Eriksen 8ea42b8 
Morten Eriksen cb1af39 
Morten Eriksen 32d6059 

Morten Eriksen aaa7218 
Morten Eriksen 32d6059 


Morten Eriksen aaa7218 




Morten Eriksen 32d6059 


Morten Eriksen aaa7218 

Morten Eriksen 32d6059 


Tom Fredrik Blen… c472387 
Morten Eriksen aaa7218 

Morten Eriksen 32d6059 


Morten Eriksen aaa7218 

Morten Eriksen 32d6059 


Morten Eriksen da2e299 
Morten Eriksen aaa7218 
Morten Eriksen 32d6059 

Morten Eriksen 8ea42b8 

Morten Eriksen 08431c9 

Morten Eriksen 8ea42b8 

Morten Eriksen 03ff79a 
Morten Eriksen 32d6059 





Morten Eriksen c53114c 


Morten Eriksen 32d6059 
Morten Eriksen 08431c9 
Morten Eriksen 0286ab8 
Morten Eriksen 8753a45 
Morten Eriksen c561186 



Morten Eriksen 08431c9 

Morten Eriksen c561186 
Morten Eriksen 08431c9 
Morten Eriksen 32d6059 
Morten Eriksen 08431c9 

Morten Eriksen 32d6059 
Tom Fredrik Blen… c472387 
Morten Eriksen 32d6059 
Morten Eriksen 08431c9 

Morten Eriksen 32d6059 


Morten Eriksen 08431c9 



Morten Eriksen 8ea42b8 

Morten Eriksen 03ff79a 
Morten Eriksen 08431c9 
Morten Eriksen 32d6059 
Morten Eriksen 08431c9 
Morten Eriksen 32d6059 
Morten Eriksen c561186 
Morten Eriksen 08431c9 

Morten Eriksen 32d6059 



Morten Eriksen c561186 
Morten Eriksen 08431c9 

Morten Eriksen c561186 
Morten Eriksen 08431c9 



Morten Eriksen 03ff79a 
Morten Eriksen 08431c9 
Morten Eriksen 32d6059 
Morten Eriksen 08431c9 
Morten Eriksen 32d6059 
Morten Eriksen cb1af39 
Morten Eriksen ebe2ef9 



Morten Eriksen ee3dcce 
Morten Eriksen 32d6059 

Morten Eriksen 08431c9 
Morten Eriksen 32d6059 



Morten Eriksen 08431c9 
Morten Eriksen 32d6059 

Morten Eriksen 08431c9 

Morten Eriksen 32d6059 



Morten Eriksen 08431c9 
Morten Eriksen 32d6059 

Morten Eriksen 08431c9 

Morten Eriksen ebe2ef9 

Morten Eriksen 08431c9 
Morten Eriksen ebe2ef9 
Morten Eriksen 03ff79a 

Morten Eriksen ebe2ef9 


Morten Eriksen 4651422 


Morten Eriksen ebe2ef9 















Marius Kintel ea73c88 


Morten Eriksen ebe2ef9 


Morten Eriksen 8ea42b8 
/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/

/*!
  \class SoElapsedTime SoElapsedTime.h Inventor/engines/SoElapsedTime.h
  \brief The SoElapsedTime class is a controllable time source engine.
  \ingroup engines

  The additional functionality provided by this engine versus just
  connecting to the realTime global field is the ability to control
  the speed of the time source plus logic to reset, stop and restart
  it.

  Simple usage example, combined with SoComposeRotation:

  \code
  #Inventor V2.1 ascii

  Separator {
     Transform {
        rotation =
        ComposeRotation { axis 0 1 0  angle =
           ElapsedTime { }.timeOut
        }.rotation
     }
     Cube { }
  }
  \endcode

  \sa SoTimeCounter
*/

// *************************************************************************

#include <Inventor/engines/SoElapsedTime.h>

#include "SbBasicP.h"

#include <Inventor/SoDB.h>
#include <Inventor/errors/SoDebugError.h>
#include <Inventor/lists/SoEngineOutputList.h>

#include "engines/SoSubEngineP.h"

// *************************************************************************

/*!
  \var SoSFTime SoElapsedTime::timeIn
  Input time value. Default connected to the global realTime field.
*/
/*!
  \var SoSFFloat SoElapsedTime::speed

  Decides how fast the timer should run, measured versus "real time"
  from the timeIn field. Default value is 1.0.

  A negative value makes the time go backward.
*/
/*!
  \var SoSFBool SoElapsedTime::on

  Shuts timer on and off. Will restart at the same position.
*/
/*!
  \var SoSFBool SoElapsedTime::pause

  Shuts timer on and off. Will restart at the position it would have
  been if not paused (i.e. doesn't "lose time").
*/
/*!
  \var SoSFTrigger SoElapsedTime::reset

  Restart timer at 0.
*/

/*!
  \var SoEngineOutput SoElapsedTime::timeOut
  (SoSFTime) Output time value. Starts at 0.
*/

// *************************************************************************

SO_ENGINE_SOURCE(SoElapsedTime);

// *************************************************************************

// Documented in superclass.
void
SoElapsedTime::initClass(void)
{
  SO_ENGINE_INTERNAL_INIT_CLASS(SoElapsedTime);
}

/*!
  Default constructor.
*/
SoElapsedTime::SoElapsedTime(void)
{
  SO_ENGINE_INTERNAL_CONSTRUCTOR(SoElapsedTime);

  SO_ENGINE_ADD_INPUT(timeIn, (SbTime::zero()));
  SO_ENGINE_ADD_INPUT(speed, (1));
  SO_ENGINE_ADD_INPUT(on, (TRUE));
  SO_ENGINE_ADD_INPUT(pause, (FALSE));
  SO_ENGINE_ADD_INPUT(reset, ());

  SO_ENGINE_ADD_OUTPUT(timeOut, SoSFTime);

  SoField * realtime = SoDB::getGlobalField("realTime");
  this->timeIn.connectFrom(realtime);

  this->currtime = SbTime::zero();
  this->lasttime = coin_assert_cast<SoSFTime *>(realtime)->getValue();
  this->status = SoElapsedTime::RUNNING;
}

/*!
  Destructor.
*/
SoElapsedTime::~SoElapsedTime()
{
}

// *************************************************************************

// Documented in superclass.
void
SoElapsedTime::evaluate(void)
{
  if (this->status == SoElapsedTime::STOPPED) {
    SO_ENGINE_OUTPUT(timeOut, SoSFTime, setValue(this->currtime));
  }
  else {
    SbTime now = this->timeIn.getValue();
    this->currtime += (now-this->lasttime) * this->speed.getValue();
    this->lasttime = now;
    if (this->status == SoElapsedTime::PAUSED) {
      SO_ENGINE_OUTPUT(timeOut, SoSFTime, setValue(this->pausetime));
    }
    else {
      SO_ENGINE_OUTPUT(timeOut, SoSFTime, setValue(this->currtime));
    }
  }
}

// Documented in superclass.
void
SoElapsedTime::inputChanged(SoField * which)
{
  if (which == &this->timeIn) return;

  // Default to turn output off, only turn it back on if the engine is
  // running.
  this->timeOut.enable(FALSE);

  if (which == &this->reset) {
    this->currtime = SbTime::zero();
    this->lasttime = this->timeIn.getValue();
  }
  else if (which == &this->pause) {
    if (this->pause.getValue() && this->status == SoElapsedTime::RUNNING) {
      this->status = SoElapsedTime::PAUSED;
      this->pausetime = this->currtime;
    }
    else if (!this->pause.getValue() && this->status == SoElapsedTime::PAUSED) {
      this->status = SoElapsedTime::RUNNING;
    }
  }
  else if (which == &this->on) {
    if (this->on.getValue() && this->status == SoElapsedTime::STOPPED) {
      this->status = SoElapsedTime::RUNNING;
      this->lasttime = this->timeIn.getValue();
    }
    else if (!this->on.getValue() && this->status != SoElapsedTime::STOPPED) {
      this->status = SoElapsedTime::STOPPED;
    }
  }

  this->timeOut.enable(this->status == SoElapsedTime::RUNNING);
}

// Documented in superclass. Overridden to not write connection to
// realTime global field.
void
SoElapsedTime::writeInstance(SoOutput * out)
{
  // Note: the code in this method matches that of SoTimeCounter and
  // SoOneShot, so if any bugs are found and corrected, remember to
  // pass on the updates.

  // Disconnect from realTime field.
  SoField * connectfield = NULL;
  SbBool connectfromrealTime =
    this->timeIn.getConnectedField(connectfield) &&
    connectfield == SoDB::getGlobalField("realTime");
  SbBool defaultflag = this->timeIn.isDefault();
  if (connectfromrealTime) {
    this->timeIn.disconnect();
    this->timeIn.setDefault(TRUE);
  }

  inherited::writeInstance(out);

  // Re-connect to realTime field.
  if (connectfromrealTime) {
    // Don't send notification when reconnecting to preserve the state
    // of the scenegraph between write passes.
    this->timeIn.connectFrom(connectfield, TRUE);
    this->timeIn.setDefault(defaultflag);
  }
}

// *************************************************************************