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First cut of WhiteListTileLoadedCallback

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This commit is contained in:
Robert Osfield
2008-09-11 10:40:48 +00:00
parent 04a3f0da1c
commit a214a677f8
1 changed files with 178 additions and 4 deletions
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182
examples/osgmultitexturecontrol/osgmultitexturecontrol.cpp
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@@ -234,11 +234,42 @@ protected:
};
struct CustomTileLoadedCallback : public osgTerrain::TerrainTile::TileLoadedCallback
struct WhiteListTileLoadedCallback : public osgTerrain::TerrainTile::TileLoadedCallback
{
CustomTileLoadedCallback()
WhiteListTileLoadedCallback()
{
}
void allow(const std::string& setname) { _setWhiteList.insert(setname); }
typedef std::set<std::string> SetWhiteList;
SetWhiteList _setWhiteList;
bool layerAcceptable(const std::string& setname) const
{
if (setname.empty()) return true;
return _setWhiteList.count(setname)!=0;
}
bool readImageLayer(osgTerrain::ImageLayer* imageLayer, const osgDB::ReaderWriter::Options* options) const
{
if (!imageLayer->getImage() &&
!imageLayer->getFileName().empty())
{
if (layerAcceptable(imageLayer->getSetName()))
{
osg::ref_ptr<osg::Image> image = osgDB::readImageFile(imageLayer->getFileName(), options);
std::cout<<"ok readingImageLayer("<<imageLayer->getSetName()<<","<<imageLayer->getFileName()<<" success="<<image->valid()<<std::endl;
imageLayer->setImage(image.get());
}
else
{
std::cout<<"disallowed readingImageLayer("<<imageLayer->getSetName()<<","<<imageLayer->getFileName()<<std::endl;
}
}
return imageLayer->getImage()!=0;
}
virtual bool deferExternalLayerLoading() const
{
@@ -247,7 +278,144 @@ struct CustomTileLoadedCallback : public osgTerrain::TerrainTile::TileLoadedCall
virtual void loaded(osgTerrain::TerrainTile* tile, const osgDB::ReaderWriter::Options* options) const
{
osg::notify(osg::NOTICE)<<"Need to decide what to do here guys"<<std::endl;
// read any external layers
for(unsigned int i=0; i<tile->getNumColorLayers(); ++i)
{
osgTerrain::Layer* layer = tile->getColorLayer(i);
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(layer);
if (imageLayer)
{
readImageLayer(imageLayer, options);
continue;
}
osgTerrain::SwitchLayer* switchLayer = dynamic_cast<osgTerrain::SwitchLayer*>(layer);
if (switchLayer)
{
for(unsigned int si=0; si<switchLayer->getNumLayers(); ++si)
{
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(switchLayer->getLayer(si));
if (imageLayer)
{
if (readImageLayer(imageLayer, options))
{
// replace SwitchLayer by
tile->setColorLayer(i, imageLayer);
continue;
}
}
}
continue;
}
osgTerrain::CompositeLayer* compositeLayer = dynamic_cast<osgTerrain::CompositeLayer*>(layer);
if (compositeLayer)
{
for(unsigned int ci=0; ci<compositeLayer->getNumLayers(); ++ci)
{
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(compositeLayer->getLayer(ci));
if (imageLayer)
{
readImageLayer(imageLayer, options);
}
}
continue;
}
}
// assign colour layers over missing layers
osgTerrain::Layer* validLayer = 0;
for(unsigned int i=0; i<tile->getNumColorLayers(); ++i)
{
osgTerrain::Layer* layer = tile->getColorLayer(i);
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(layer);
if (imageLayer)
{
if (imageLayer->getImage()!=0)
{
validLayer = imageLayer;
}
continue;
}
osgTerrain::SwitchLayer* switchLayer = dynamic_cast<osgTerrain::SwitchLayer*>(layer);
if (switchLayer)
{
for(unsigned int si=0; si<switchLayer->getNumLayers(); ++si)
{
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(switchLayer->getLayer(si));
if (imageLayer && imageLayer->getImage()!=0)
{
validLayer = imageLayer;
}
}
continue;
}
osgTerrain::CompositeLayer* compositeLayer = dynamic_cast<osgTerrain::CompositeLayer*>(layer);
if (compositeLayer)
{
for(unsigned int ci=0; ci<compositeLayer->getNumLayers(); ++ci)
{
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(switchLayer->getLayer(ci));
if (imageLayer && imageLayer->getImage()!=0)
{
validLayer = imageLayer;
}
}
continue;
}
}
if (validLayer)
{
// fill in any missing layers
for(unsigned int i=0; i<tile->getNumColorLayers(); ++i)
{
osgTerrain::Layer* layer = tile->getColorLayer(i);
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(layer);
if (imageLayer)
{
if (imageLayer->getImage()==0)
{
tile->setColorLayer(i, validLayer);
break;
}
continue;
}
osgTerrain::SwitchLayer* switchLayer = dynamic_cast<osgTerrain::SwitchLayer*>(layer);
if (switchLayer)
{
for(unsigned int si=0; si<switchLayer->getNumLayers(); ++si)
{
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(switchLayer->getLayer(si));
if (imageLayer && imageLayer->getImage()==0)
{
tile->setColorLayer(i, validLayer);
break;
}
}
continue;
}
osgTerrain::CompositeLayer* compositeLayer = dynamic_cast<osgTerrain::CompositeLayer*>(layer);
if (compositeLayer)
{
for(unsigned int ci=0; ci<compositeLayer->getNumLayers(); ++ci)
{
osgTerrain::ImageLayer* imageLayer = dynamic_cast<osgTerrain::ImageLayer*>(switchLayer->getLayer(ci));
if (imageLayer && imageLayer->getImage()==0)
{
tile->setColorLayer(i, validLayer);
break;
}
}
continue;
}
}
}
}
};
@@ -261,7 +429,13 @@ int main( int argc, char **argv )
// set the tile loaded callback to load the optional imagery
osgTerrain::TerrainTile::setTileLoadedCallback(new CustomTileLoadedCallback());
osg::ref_ptr<WhiteListTileLoadedCallback> whiteList = new WhiteListTileLoadedCallback;
std::string setname;
while(arguments.read("--allow",setname))
{
whiteList->allow(setname);
}
osgTerrain::TerrainTile::setTileLoadedCallback(whiteList.get());
// construct the viewer.
osgViewer::Viewer viewer(arguments);