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Added <switch> tag to .p3d to allow one to provide multiple ways to render children within a layer.

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This commit is contained in:
Robert Osfield 2013-12-20 09:57:35 +00:00
parent a72508bc71
commit 865a47bd6b
3 changed files with 46 additions and 20 deletions
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2
include/osgPresentation/deprecated/SlideShowConstructor
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@ -506,7 +506,7 @@ public:
osg::Switch* getCurrentSlide() { return _slide.get(); }
void pushCurrentLayer();
void pushCurrentLayer(osg::Group* newLayerGroup);
void popCurrentLayer();
osg::Group* getCurrentLayer() { return _currentLayer.get(); }

34
src/osgPlugins/p3d/ReaderWriterP3D.cpp
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@ -133,10 +133,13 @@ public:
osg::TransferFunction1D* readTransferFunctionFile(const std::string& filename, float scale) const;
void parseVolume(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode*cur) const;
void parseStereoPair(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode*cur) const;
void parseTimeout(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode*cur) const;
void parseSwitch(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode*cur) const;
bool parseLayerChild(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode* cur, float& totalIndent) const;
void parseLayer(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode*cur) const;
@ -1526,10 +1529,10 @@ bool ReaderWriterP3DXML::getKeyPositionInner(osgDB::XmlNode*cur, osgPresentation
void ReaderWriterP3DXML::parseTimeout(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode* root) const
{
// to allow the timeout to be nested with a Layer but still behave like a Layer itself we push the timeout as a Layer, saving the original Layer
constructor.pushCurrentLayer();
osg::ref_ptr<osgPresentation::Timeout> timeout = new osgPresentation::Timeout(constructor.getHUDSettings());
osg::ref_ptr<osgPresentation::Timeout> timeout = constructor.addTimeout();
// to allow the timeout to be nested with a Layer but still behave like a Layer itself we push the timeout as a Layer, saving the original Layer
constructor.pushCurrentLayer(timeout.get());
OSG_NOTICE<<"parseTimeout"<<std::endl;
@ -1641,10 +1644,10 @@ void ReaderWriterP3DXML::parseTimeout(osgPresentation::SlideShowConstructor& con
}
constructor.popCurrentLayer(); // return the
constructor.popCurrentLayer(); // return the parent level
}
bool ReaderWriterP3DXML::parseLayerChild(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode* cur, float& totalIndent) const
{
if (cur->name == "newline")
@ -1864,6 +1867,23 @@ bool ReaderWriterP3DXML::parseLayerChild(osgPresentation::SlideShowConstructor&
return false;
}
void ReaderWriterP3DXML::parseSwitch(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode*cur) const
{
osg::ref_ptr<osg::Switch> switchNode = new osg::Switch;;
// to allow the timeout to be nested with a Layer but still behave like a Layer itself we push the timeout as a Layer, saving the original Layer
constructor.pushCurrentLayer(switchNode.get());
OSG_NOTICE<<"parseSwitch"<<std::endl;
parseLayer(constructor, cur);
switchNode->setSingleChildOn(0);
constructor.popCurrentLayer(); // return the parent level
}
void ReaderWriterP3DXML::parseLayer(osgPresentation::SlideShowConstructor& constructor, osgDB::XmlNode* root) const
{
OSG_INFO<<std::endl<<"parseLayer"<<std::endl;
@ -1890,6 +1910,10 @@ void ReaderWriterP3DXML::parseLayer(osgPresentation::SlideShowConstructor& const
{
// no need to do anything
}
else if (cur->name == "switch")
{
parseSwitch(constructor, cur);
}
else if (cur->name == "timeout")
{
parseTimeout(constructor, cur);

22
src/osgPresentation/deprecated/SlideShowConstructor.cpp
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@ -409,18 +409,16 @@ void SlideShowConstructor::setSlideDuration(double duration)
}
}
Timeout* SlideShowConstructor::addTimeout()
void SlideShowConstructor::pushCurrentLayer(osg::Group* group)
{
osg::ref_ptr<osgPresentation::Timeout> timeout = new osgPresentation::Timeout(_hudSettings.get());
if (_currentLayer.valid()) _currentLayer->addChild(timeout.get());
_currentLayer = timeout.get();
return timeout.release();
}
if (_currentLayer.valid())
{
_currentLayer->addChild(group);
_layerStack.push_back(_currentLayer.get());
}
_currentLayer = group;
void SlideShowConstructor::pushCurrentLayer()
{
_layerStack.push_back(_currentLayer.get());
}
void SlideShowConstructor::popCurrentLayer()
@ -430,6 +428,10 @@ void SlideShowConstructor::popCurrentLayer()
_currentLayer = _layerStack.back();
_layerStack.pop_back();
}
else
{
_currentLayer = 0;
}
}
void SlideShowConstructor::addLayer(bool inheritPreviousLayers, bool defineAsBaseLayer)