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Intial work towards support an interaction <imagesequence> tag in Present3D.

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This commit is contained in:
Robert Osfield
2012-10-29 15:58:02 +00:00
parent ce623c697e
commit d879cd7715
6 changed files with 249 additions and 99 deletions
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159
src/osgPresentation/SlideEventHandler.cpp
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@@ -58,6 +58,47 @@ void LayerAttributes::callLeaveCallbacks(osg::Node* node)
}
struct InteractiveImageSequenceOperator : public ObjectOperator
{
InteractiveImageSequenceOperator(osg::ImageSequence* imageSequence):
_imageSequence(imageSequence) {}
virtual void* ptr() const { return _imageSequence.get(); }
virtual void enter(SlideEventHandler* seh)
{
set(seh);
// need to pause till the load has been completed.
}
virtual void maintain(SlideEventHandler* seh)
{
}
virtual void leave(SlideEventHandler* seh)
{
}
virtual void setPause(SlideEventHandler* seh, bool pause)
{
}
virtual void reset(SlideEventHandler* seh)
{
set(seh);
}
void set(SlideEventHandler* seh)
{
OSG_NOTICE<<"Mouse x position is : "<<seh->getNormalizedMousePosition().x()<<std::endl;
double position = (static_cast<double>(seh->getNormalizedMousePosition().x())+1.0)*0.5*_imageSequence->getLength();
_imageSequence->seek(position);
}
osg::ref_ptr<osg::ImageSequence> _imageSequence;
};
struct ImageStreamOperator : public ObjectOperator
{
ImageStreamOperator(osg::ImageStream* imageStream):
@@ -65,25 +106,25 @@ struct ImageStreamOperator : public ObjectOperator
virtual void* ptr() const { return _imageStream.get(); }
virtual void enter()
virtual void enter(SlideEventHandler* seh)
{
OSG_INFO<<"enter() : _imageStream->rewind() + play"<<std::endl;
reset();
reset(seh);
}
virtual void maintain()
virtual void maintain(SlideEventHandler*)
{
}
virtual void leave()
virtual void leave(SlideEventHandler*)
{
OSG_INFO<<"leave() : _imageStream->pause()"<<std::endl;
_imageStream->pause();
}
virtual void setPause(bool pause)
virtual void setPause(SlideEventHandler*, bool pause)
{
OSG_INFO<<"_imageStream->setPause("<<pause<<")"<<std::endl;
@@ -91,7 +132,7 @@ struct ImageStreamOperator : public ObjectOperator
else _imageStream->play();
}
virtual void reset()
virtual void reset(SlideEventHandler*)
{
osg::ImageStream::StreamStatus previousStatus = _imageStream->getStatus();
@@ -121,20 +162,20 @@ struct CallbackOperator : public ObjectOperator
virtual void* ptr() const { return _callback.get(); }
virtual void enter()
virtual void enter(SlideEventHandler* seh)
{
reset();
reset(seh);
}
virtual void maintain()
virtual void maintain(SlideEventHandler*)
{
}
virtual void leave()
virtual void leave(SlideEventHandler*)
{
}
virtual void setPause(bool pause)
virtual void setPause(SlideEventHandler*, bool pause)
{
osg::AnimationPathCallback* apc = dynamic_cast<osg::AnimationPathCallback*>(_callback.get());
osgUtil::TransformCallback* tc = dynamic_cast<osgUtil::TransformCallback*>(_callback.get());
@@ -156,7 +197,7 @@ struct CallbackOperator : public ObjectOperator
}
}
virtual void reset()
virtual void reset(SlideEventHandler*)
{
osg::AnimationPathCallback* apc = dynamic_cast<osg::AnimationPathCallback*>(_callback.get());
osgUtil::TransformCallback* tc = dynamic_cast<osgUtil::TransformCallback*>(_callback.get());
@@ -191,7 +232,7 @@ struct LayerAttributesOperator : public ObjectOperator
virtual void* ptr() const { return _layerAttribute.get(); }
virtual void enter()
virtual void enter(SlideEventHandler*)
{
_layerAttribute->callEnterCallbacks(_node.get());
@@ -235,22 +276,22 @@ struct LayerAttributesOperator : public ObjectOperator
}
virtual void maintain()
virtual void maintain(SlideEventHandler*)
{
}
virtual void leave()
virtual void leave(SlideEventHandler*)
{
OSG_INFO<<"LayerAttribute leave"<<std::endl;
_layerAttribute->callLeaveCallbacks(_node.get());
}
virtual void setPause(bool pause)
virtual void setPause(SlideEventHandler*, bool pause)
{
}
virtual void reset()
virtual void reset(SlideEventHandler*)
{
}
@@ -279,7 +320,15 @@ public:
LayerAttributes* la = dynamic_cast<LayerAttributes*>(node.getUserData());
if (la)
{
_operatorList.insert(new LayerAttributesOperator(&node, la));
if ((_objectsHandled[la]++)==0)
{
OSG_NOTICE<<"LayerAttributeOperator for "<<la<<" required, assigning one."<<std::endl;
_operatorList.insert(new LayerAttributesOperator(&node, la));
}
else
{
OSG_NOTICE<<"LayerAttributeOperator for "<<la<<" not required, as one already assigned."<<std::endl;
}
}
traverse(node);
@@ -301,14 +350,38 @@ public:
{
osg::Texture* texture = dynamic_cast<osg::Texture*>(ss->getTextureAttribute(i,osg::StateAttribute::TEXTURE));
osg::Image* image = texture ? texture->getImage(0) : 0;
osg::ImageStream* imageStream = image ? dynamic_cast<osg::ImageStream*>(image) : 0;
if (imageStream)
osg::ImageSequence* imageSequence = dynamic_cast<osg::ImageSequence*>(image);
osg::ImageStream* imageStream = dynamic_cast<osg::ImageStream*>(image);
if (imageSequence && imageSequence->getName()=="USE_MOUSE_X_POSITION")
{
_operatorList.insert(new ImageStreamOperator(imageStream));
if ((_objectsHandled[image]++)==0)
{
OSG_INFO<<"ImageSequenceOperator for"<<imageSequence<<" required, assigning one, name = '"<<image->getName()<<"'"<<std::endl;
_operatorList.insert(new InteractiveImageSequenceOperator(imageSequence));
}
else
{
OSG_INFO<<"ImageSequenceOperator for"<<imageSequence<<" not required, as one already assigned"<<std::endl;
}
}
else if (imageStream)
{
if ((_objectsHandled[image]++)==0)
{
OSG_INFO<<"ImageStreamOperator for"<<imageStream<<" required, assigning one"<<std::endl;
_operatorList.insert(new ImageStreamOperator(imageStream));
}
else
{
OSG_INFO<<"ImageStreamOperator for"<<imageStream<<" not required, as one already assigned"<<std::endl;
}
}
}
}
typedef std::map<osg::Referenced*,unsigned int> ObjectsHandled;
ObjectsHandled _objectsHandled;
ActiveOperators::OperatorList& _operatorList;
};
@@ -357,66 +430,66 @@ void ActiveOperators::collect(osg::Node* incommingNode, osg::NodeVisitor::Traver
}
}
void ActiveOperators::setPause(bool pause)
void ActiveOperators::setPause(SlideEventHandler* seh, bool pause)
{
_pause = pause;
for(OperatorList::iterator itr = _current.begin();
itr != _current.end();
++itr)
{
(*itr)->setPause(_pause);
(*itr)->setPause(seh, _pause);
}
}
void ActiveOperators::reset()
void ActiveOperators::reset(SlideEventHandler* seh)
{
for(OperatorList::iterator itr = _current.begin();
itr != _current.end();
++itr)
{
(*itr)->reset();
(*itr)->reset(seh);
}
}
void ActiveOperators::process()
void ActiveOperators::process(SlideEventHandler* seh)
{
processOutgoing();
processMaintained();
processIncomming();
processOutgoing(seh);
processMaintained(seh);
processIncomming(seh);
}
void ActiveOperators::processOutgoing()
void ActiveOperators::processOutgoing(SlideEventHandler* seh)
{
OSG_INFO<<" outgoing.size()="<<_outgoing.size()<<std::endl;
for(OperatorList::iterator itr = _outgoing.begin();
itr != _outgoing.end();
++itr)
{
(*itr)->leave();
(*itr)->leave(seh);
}
}
void ActiveOperators::processMaintained()
void ActiveOperators::processMaintained(SlideEventHandler* seh)
{
OSG_INFO<<" maintained.size()="<<_maintained.size()<<std::endl;
for(OperatorList::iterator itr = _maintained.begin();
itr != _maintained.end();
++itr)
{
(*itr)->maintain();
(*itr)->maintain(seh);
}
}
void ActiveOperators::processIncomming()
void ActiveOperators::processIncomming(SlideEventHandler* seh)
{
OSG_INFO<<" incomming.size()="<<_incomming.size()<<std::endl;
for(OperatorList::iterator itr = _incomming.begin();
itr != _incomming.end();
++itr)
{
(*itr)->enter();
(*itr)->setPause(_pause);
(*itr)->enter(seh);
(*itr)->setPause(seh, _pause);
}
}
@@ -621,7 +694,8 @@ SlideEventHandler::SlideEventHandler(osgViewer::Viewer* viewer):
_timeDelayOnNewSlideWithMovies(0.25f),
_minimumTimeBetweenKeyPresses(0.25),
_timeLastKeyPresses(-1.0),
_requestReload(false)
_requestReload(false),
_normalizedMousePosition(0.0f,0.0f)
{
s_seh = this;
}
@@ -647,7 +721,7 @@ void SlideEventHandler::set(osg::Node* model)
ActiveOperators operators;
operators.collect(model, osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
operators.setPause(true);
operators.setPause(this, true);
FindNamedSwitchVisitor findPresentation("Presentation");
model->accept(findPresentation);
@@ -747,6 +821,7 @@ bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
}
//else OSG_NOTICE<<"SlideEventHandler::handle() "<<ea.getTime()<<std::endl;
_normalizedMousePosition.set(ea.getXnormalized(), ea.getYnormalized());
if (ea.getHandled()) return false;
@@ -890,7 +965,7 @@ bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
#if 0
resetUpdateCallbackActivity(ALL_OBJECTS);
#endif
_activeOperators.setPause(_pause);
_activeOperators.setPause(this, _pause);
}
return true;
@@ -904,7 +979,7 @@ bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
#if 0
resetUpdateCallbackActivity(ALL_OBJECTS);
#endif
_activeOperators.setPause(_pause);
_activeOperators.setPause(this, _pause);
}
return true;
@@ -919,7 +994,7 @@ bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
#if 0
resetUpdateCallbacks(ALL_OBJECTS);
#endif
_activeOperators.reset();
_activeOperators.reset(this);
return true;
}
/*
@@ -1221,7 +1296,7 @@ bool SlideEventHandler::previousLayer()
void SlideEventHandler::updateOperators()
{
_activeOperators.collect(_slideSwitch.get());
_activeOperators.process();
_activeOperators.process(this);
if (_viewer.valid())
{