/usr/include/osgAnimation/Channel is in libopenscenegraph-dev 3.2.3+dfsg1-2+b4.
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* Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*
* Authors:
* Cedric Pinson <cedric.pinson@plopbyte.net>
* Michael Platings <mplatings@pixelpower.com>
*/
#ifndef OSGANIMATION_CHANNEL
#define OSGANIMATION_CHANNEL 1
#include <osgAnimation/Export>
#include <osgAnimation/Sampler>
#include <osgAnimation/Target>
#include <osg/Referenced>
#include <string>
namespace osgAnimation
{
class OSGANIMATION_EXPORT Channel : public osg::Referenced
{
public:
Channel();
Channel(const Channel& channel);
virtual ~Channel();
virtual Channel* clone() const = 0;
virtual void update(double time, float weight, int priority) = 0;
virtual void reset() = 0;
virtual Target* getTarget() = 0;
virtual bool setTarget(Target*) = 0;
const std::string& getName() const;
void setName(const std::string& name);
virtual double getStartTime() const = 0;
virtual double getEndTime() const = 0;
const std::string& getTargetName() const;
void setTargetName(const std::string& name);
virtual Sampler* getSampler() = 0;
virtual const Sampler* getSampler() const = 0;
// create a keyframe container from current target value
// with one key only, can be used for debug or to create
// easily a default channel from an existing one
virtual bool createKeyframeContainerFromTargetValue() = 0;
protected:
std::string _targetName;
std::string _name;
};
template <typename SamplerType>
class TemplateChannel : public Channel
{
public:
typedef typename SamplerType::UsingType UsingType;
typedef TemplateTarget<UsingType> TargetType;
typedef TemplateKeyframeContainer<typename SamplerType::KeyframeType> KeyframeContainerType;
Channel* clone() const { return new TemplateChannel<SamplerType>(*this); }
TemplateChannel (const TemplateChannel& channel) :
Channel(channel)
{
if (channel.getTargetTyped())
_target = new TargetType(*channel.getTargetTyped());
if (channel.getSamplerTyped())
_sampler = new SamplerType(*channel.getSamplerTyped());
}
TemplateChannel (SamplerType* s = 0,TargetType* target = 0)
{
if (target)
_target = target;
else
_target = new TargetType;
_sampler = s;
}
virtual bool createKeyframeContainerFromTargetValue()
{
if (!_target.valid()) // no target it does not make sense to do it
{
return false;
}
// create a key from current target value
typename KeyframeContainerType::KeyType key(0, _target->getValue());
// recreate the keyframe container
getOrCreateSampler()->setKeyframeContainer(0);
getOrCreateSampler()->getOrCreateKeyframeContainer();
// add the key
_sampler->getKeyframeContainerTyped()->push_back(key);
return true;
}
virtual ~TemplateChannel() {}
virtual void update(double time, float weight, int priority)
{
// skip if weight == 0
if (weight < 1e-4)
return;
typename SamplerType::UsingType value;
_sampler->getValueAt(time, value);
_target->update(weight, value, priority);
}
virtual void reset() { _target->reset(); }
virtual Target* getTarget() { return _target.get();}
virtual bool setTarget(Target* target)
{
_target = dynamic_cast<TargetType*>(target);
return _target.get() == target;
}
SamplerType* getOrCreateSampler()
{
if (!_sampler.valid())
_sampler = new SamplerType;
return _sampler.get();
}
Sampler* getSampler() { return _sampler.get(); }
const Sampler* getSampler() const { return _sampler.get(); }
SamplerType* getSamplerTyped() { return _sampler.get();}
const SamplerType* getSamplerTyped() const { return _sampler.get();}
void setSampler(SamplerType* sampler) { _sampler = sampler; }
TargetType* getTargetTyped() { return _target.get(); }
const TargetType* getTargetTyped() const { return _target.get(); }
void setTarget(TargetType* target) { _target = target; }
virtual double getStartTime() const { return _sampler->getStartTime(); }
virtual double getEndTime() const { return _sampler->getEndTime(); }
protected:
osg::ref_ptr<TargetType> _target;
osg::ref_ptr<SamplerType> _sampler;
};
typedef std::vector<osg::ref_ptr<osgAnimation::Channel> > ChannelList;
typedef TemplateChannel<DoubleStepSampler> DoubleStepChannel;
typedef TemplateChannel<FloatStepSampler> FloatStepChannel;
typedef TemplateChannel<Vec2StepSampler> Vec2StepChannel;
typedef TemplateChannel<Vec3StepSampler> Vec3StepChannel;
typedef TemplateChannel<Vec4StepSampler> Vec4StepChannel;
typedef TemplateChannel<QuatStepSampler> QuatStepChannel;
typedef TemplateChannel<DoubleLinearSampler> DoubleLinearChannel;
typedef TemplateChannel<FloatLinearSampler> FloatLinearChannel;
typedef TemplateChannel<Vec2LinearSampler> Vec2LinearChannel;
typedef TemplateChannel<Vec3LinearSampler> Vec3LinearChannel;
typedef TemplateChannel<Vec4LinearSampler> Vec4LinearChannel;
typedef TemplateChannel<QuatSphericalLinearSampler> QuatSphericalLinearChannel;
typedef TemplateChannel<MatrixLinearSampler> MatrixLinearChannel;
typedef TemplateChannel<FloatCubicBezierSampler> FloatCubicBezierChannel;
typedef TemplateChannel<DoubleCubicBezierSampler> DoubleCubicBezierChannel;
typedef TemplateChannel<Vec2CubicBezierSampler> Vec2CubicBezierChannel;
typedef TemplateChannel<Vec3CubicBezierSampler> Vec3CubicBezierChannel;
typedef TemplateChannel<Vec4CubicBezierSampler> Vec4CubicBezierChannel;
}
#endif
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