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File: SoInteraction.cpp

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/**************************************************************************\
 *
 *  This file is part of the Coin 3D visualization library.
 *  Copyright (C) by Kongsberg Oil & Gas Technologies.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  ("GPL") version 2 as published by the Free Software Foundation.
 *  See the file LICENSE.GPL at the root directory of this source
 *  distribution for additional information about the GNU GPL.
 *
 *  For using Coin with software that can not be combined with the GNU
 *  GPL, and for taking advantage of the additional benefits of our
 *  support services, please contact Kongsberg Oil & Gas Technologies
 *  about acquiring a Coin Professional Edition License.
 *
 *  See http://www.coin3d.org/ for more information.
 *
 *  Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
 *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
 *
\**************************************************************************/

/*!
  \class SoInteraction SoInteraction.h Inventor/SoInteraction.h
  \brief The SoInteraction class takes care of initalizing internal classes.
  \ingroup general

  SoInteraction is present for the sole purpose of providing an
  interface to the initialization methods of the classes in Coin which
  are somehow related to user interaction, like the draggers and
  manipulators.

  It is unlikely that the application programmer should need to worry
  about this class, as SoInteraction::init() is called by the GUI
  specific initialization methods.

 */

#include <Inventor/SoInteraction.h>

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif // HAVE_CONFIG_H

#include <Inventor/SoDB.h>
#include <Inventor/nodes/SoAntiSquish.h>
#include <Inventor/nodes/SoExtSelection.h>
#include <Inventor/nodes/SoSurroundScale.h>

#include <Inventor/nodekits/SoNodeKit.h>
#ifdef HAVE_NODEKITS
#include <Inventor/nodekits/SoInteractionKit.h>
#endif // HAVE_NODEKITS

#ifdef HAVE_DRAGGERS
#include <Inventor/draggers/SoDragger.h>
#endif // HAVE_DRAGGERS

#ifdef HAVE_MANIPULATORS
#include <Inventor/manips/SoCenterballManip.h>
#include <Inventor/manips/SoClipPlaneManip.h>
#include <Inventor/manips/SoDirectionalLightManip.h>
#include <Inventor/manips/SoHandleBoxManip.h>
#include <Inventor/manips/SoJackManip.h>
#include <Inventor/manips/SoPointLightManip.h>
#include <Inventor/manips/SoSpotLightManip.h>
#include <Inventor/manips/SoTabBoxManip.h>
#include <Inventor/manips/SoTrackballManip.h>
#include <Inventor/manips/SoTransformBoxManip.h>
#include <Inventor/manips/SoTransformerManip.h>
#endif // HAVE_MANIPULATORS

#include "tidbitsp.h"

static SbBool interaction_isinitialized = FALSE;

static void interaction_cleanup(void)
{
  interaction_isinitialized = FALSE;
}

/*!
  Calls the initClass() method of these classes: SoAntiSquish,
  SoSelection, SoExtSelection, SoSurroundScale, SoInteractionKit,
  SoDragger, SoClipPlaneManip, SoDirectionalLightManip,
  SoPointLightManip, SoSpotLightManip, SoTransformManip,
  SoCenterballManip, SoHandleBoxManip, SoJackManip, SoTabBoxManip,
  SoTrackballManip, SoTransformBoxManip, SoTransformerManip.

  Note that this method calls SoDB::init() and SoNodeKit::init() to
  make sure all classes that the interaction functionality depends on
  have been initialized.


  Application programmers should usually not have to invoke this
  method directly from application code, as it is indirectly called
  from the GUI-binding libraries' init()-functions.  Only if you are
  using your own GUI-binding (and not one of Kongsberg Oil & Gas
  Technologies SoQt, SoGtk, SoXt, SoWin, Sc21 etc. libraries) do you
  have to explicitly call SoInteraction::init().

  \code
  int main(int argc, char ** argv )
  {
    // SoQt::init() calls SoDB::init(), SoNodeKit::init() and
    // SoInteraction::init().
    QWidget * window = SoQt::init( argv[0] );

    SoSeparator * root = make_scenegraph();
    root->ref();
    /// [... etc ...] ///
  \endcode

 */
void
SoInteraction::init(void)
{
  if (interaction_isinitialized) return;

  if (!SoDB::isInitialized()) SoDB::init();

  SoAntiSquish::initClass();
  SoSelection::initClass();
  SoExtSelection::initClass();
  SoSurroundScale::initClass();

  SoNodeKit::init();
#ifdef HAVE_NODEKITS
  SoInteractionKit::initClass();
#endif // HAVE_NODEKITS

#ifdef HAVE_DRAGGERS
  SoDragger::initClass();
#endif // HAVE_DRAGGERS

#ifdef HAVE_MANIPULATORS
  SoClipPlaneManip::initClass();
  SoDirectionalLightManip::initClass();
  SoPointLightManip::initClass();
  SoSpotLightManip::initClass();
  SoTransformManip::initClass();
  SoCenterballManip::initClass();
  SoHandleBoxManip::initClass();
  SoJackManip::initClass();
  SoTabBoxManip::initClass();
  SoTrackballManip::initClass();
  SoTransformBoxManip::initClass();
  SoTransformerManip::initClass();
#endif // HAVE_MANIPULATORS

  interaction_isinitialized = TRUE;
  coin_atexit((coin_atexit_f*)interaction_cleanup, CC_ATEXIT_NORMAL);
}