slideshow/source/engine/animationnodes/animationphysicsnode.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
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   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "animationphysicsnode.hxx"
  21 #include <animationfactory.hxx>
  22
  23 constexpr double fDefaultStartVelocityX(0.0);
  24 constexpr double fDefaultStartVelocityY(0.0);
  25 constexpr double fDefaultDensity(1.0);
  26 constexpr double fDefaultBounciness(0.1);
  27
  28 namespace slideshow::internal
  29 {
  30 void AnimationPhysicsNode::dispose()
  31 {
  32     mxPhysicsMotionNode.clear();
  33     AnimationBaseNode::dispose();
  34 }
  35
  36 AnimationActivitySharedPtr AnimationPhysicsNode::createActivity() const
  37 {
  38     double fDuration(0.0);
  39     ENSURE_OR_THROW((mxPhysicsMotionNode->getDuration() >>= fDuration),
  40                     "Couldn't get the animation duration.");
  41
  42     ::css::uno::Any aTemp;
  43     double fStartVelocityX = fDefaultStartVelocityX;
  44     aTemp = mxPhysicsMotionNode->getStartVelocityX();
  45     if (aTemp.hasValue())
  46         aTemp >>= fStartVelocityX;
  47
  48     double fStartVelocityY = fDefaultStartVelocityY;
  49     aTemp = mxPhysicsMotionNode->getStartVelocityY();
  50     if (aTemp.hasValue())
  51         aTemp >>= fStartVelocityY;
  52
  53     double fDensity = fDefaultDensity;
  54     aTemp = mxPhysicsMotionNode->getDensity();
  55     if (aTemp.hasValue())
  56     {
  57         aTemp >>= fDensity;
  58         fDensity = (fDensity < 0.0) ? 0.0 : fDensity;
  59     }
  60
  61     double fBounciness = fDefaultBounciness;
  62     aTemp = mxPhysicsMotionNode->getBounciness();
  63     if (aTemp.hasValue())
  64     {
  65         aTemp >>= fBounciness;
  66         fBounciness = std::clamp(fBounciness, 0.0, 1.0);
  67     }
  68
  69     ActivitiesFactory::CommonParameters const aParms(fillCommonParameters());
  70     return ActivitiesFactory::createSimpleActivity(
  71         aParms,
  72         AnimationFactory::createPhysicsAnimation(
  73             getContext().mpBox2DWorld, fDuration, getContext().mpSubsettableShapeManager,
  74             getSlideSize(), { fStartVelocityX, fStartVelocityY }, fDensity, fBounciness, 0),
  75         true);
  76 }
  77
  78 bool AnimationPhysicsNode::enqueueActivity() const
  79 {
  80     return getContext().mrActivitiesQueue.addTailActivity(mpActivity);
  81 }
  82
  83 } // namespace slideshow::internal
  84
  85 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */