C++ XmlTree类代码示例

void cApp::loadXml(){
    
    fs::path p = "gui.xml";
    if( !fs::is_empty( p ) ){
        XmlTree xml( loadFile( p ) );
        XmlTree mn = xml.getChild("gui_setting/main");
        frame =  (mn/"frame").getValue<int>();
        bOrtho =  (mn/"ortho").getValue<bool>();
        Ramses::globalScale =  (mn/"xyz_global_scale").getValue<float>();
        //Ramses::boxelx =  (mn/"r_resolution").getValue<float>();
        //Ramses::boxely =  (mn/"theta_resolution").getValue<float>();
        
        XmlTree sim = xml.getChild( "gui_setting/simType_" + to_string(simType) );
        
        for( int i=0; i<rms.size(); i++){
            Ramses & r = rms[i];
            string name = Ramses::prm[i];
            XmlTree prm = sim.getChild(name);
            r.bShow = (prm/"show").getValue<bool>();
            r.bPolar = (prm/"polar").getValue<bool>(true);
            r.bAutoMinMax = (prm/"Auto_Min_Max").getValue<bool>();
            r.in_min = (prm/"in_min").getValue<float>();
            r.in_max = (prm/"in_max").getValue<float>();
            r.extrude = (prm/"z_extrude").getValue<float>();
            r.xoffset = (prm/"x_offset").getValue<float>();
            r.yoffset = (prm/"y_offset").getValue<float>();
            r.zoffset = (prm/"z_offset").getValue<float>();
            r.scale = (prm/"xy_scale").getValue<float>();
            r.eStretch = (prm/"log").getValue<float>();
        }
    }
}

Checksum Scenario::load(const string &path) {
    Checksum scenarioChecksum;
	try {
		scenarioChecksum.addFile(path);
		checksumValue.addFile(path);

		string name= cutLastExt(lastDir(path));
		Logger::getInstance().add("Scenario: " + formatString(name), true);

		//parse xml
		XmlTree xmlTree;
		xmlTree.load(path);
		const XmlNode *scenarioNode= xmlTree.getRootNode();
		const XmlNode *scriptsNode= scenarioNode->getChild("scripts");

		for(int i= 0; i<scriptsNode->getChildCount(); ++i){
			const XmlNode *scriptNode = scriptsNode->getChild(i);

			scripts.push_back(Script(getFunctionName(scriptNode), scriptNode->getText()));
		}
	}
	//Exception handling (conversions and so on);
	catch(const exception &e) {
		SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s Line: %d] Error [%s]\n",__FILE__,__FUNCTION__,__LINE__,e.what());
		throw runtime_error("Error: " + path + "\n" + e.what());
	}

	return scenarioChecksum;
}

void AppModel::parseRecipes(XmlTree _root){
    XmlTree t = _root.getChild("dict/dict");
    
    for( XmlTree::Iter child = t.begin(); child != t.end(); ++child ){
        if(child->getTag().compare("key")==0){
            // use this value as the name for a new Recipe object
            RecipeModel rm;
            rm.name = child->getValue();
            recipes.push_back(rm);
        } else {
            XmlTree t2 = *child;
            string whichKey;
            for( XmlTree::Iter grandchild = t2.begin(); grandchild != t2.end(); ++grandchild ){                
                if(grandchild->getTag().compare("key")==0){
                    whichKey = grandchild->getValue();
                } else if(grandchild->getTag().compare("dict")==0){                    
                    if(whichKey.compare("Steps")==0){
                        XmlTree t3 = *grandchild;
                        CookStepModel sm;
                        for( XmlTree::Iter greatChild = t3.begin(); greatChild != t3.end(); ++greatChild ){
                            XmlTree t4 = *greatChild;
                            string stepKey;
                            if(greatChild->getTag().compare("dict")==0){
                                for( XmlTree::Iter baby = t4.begin(); baby != t4.end(); ++baby ){
                                    if(baby->getTag().compare("key")==0){
                                        stepKey = baby->getValue();
                                    } else {
                                        if(stepKey.compare("img")==0){
                                            sm.img = baby->getValue();
                                        } else if(stepKey.compare("video")==0){
                                            sm.video = baby->getValue();
                                        } else {
                                            console() << "I got a property of a cookstep that was unexpected: " << stepKey << ", " << baby->getValue();
                                        }
                                        
                                    }
                                }
                            } else if(greatChild->getTag().compare("key")==0){
                                if(recipes.size()>0 && sm.name.compare("")!=0){
                                    recipes.at(recipes.size()-1).steps.push_back(sm);
                                }
                                sm.name = sm.video = sm.img = "";
                                sm.name = greatChild->getValue();
                            }
                            
                        }
                        if(sm.name.compare("")!=0){
                            recipes.at(recipes.size()-1).steps.push_back(sm);
                        }
                    }
                    
                } else {
                   // do nothing?
                }
                
            }
        }
        
    }
}

void QTimeline::load( fs::path filepath )
{
    clear();
 
    XmlTree doc;
    
    try
    {
        doc = XmlTree( loadFile( filepath ) );

        
        for( XmlTree::Iter nodeIt = doc.begin("QTimeline/tracks/track"); nodeIt != doc.end(); ++nodeIt )
        {
            string              trackName   = nodeIt->getAttributeValue<string>("name");
            QTimelineTrackRef   trackRef    = QTimelineTrackRef( new QTimelineTrack( trackName ) );
            mTracks.push_back( trackRef );
            trackRef->loadXmlNode( *nodeIt );
        }
        
        mCueManager->loadXmlNode( doc.getChild( "qTimeline/cueList" ) );
    }
    catch ( ... )
    {
        console() << "Error > QTimeline::load(): " << filepath.filename().generic_string() << endl;
        return;
    }
    
    updateCurrentTime();
}

Object* ObjectLoader::loadObjectFromFile(const char* filename){
	Object* object = NULL;
	//Leo el archivo y lo parseo en un arbol
	XmlTree* xmlTree = XmlParser::parse(string(WindowConnector::getBaseApplicationPath() + filename).c_str());
	//***Transformo el arbol en un Object***
	XmlTreeNode* root =  xmlTree->getRootNode();
	//Primiero busco la etiqueta de Object
	XmlTreeNode* objectNode = NULL;
	for(unsigned int i=0; i < root->getChildNodes().size(); i++){
		objectNode = root->getChildNodes()[i];
		if(objectNode->getName().compare("Object")==0){	
			//Cargo el mesh y le seteo los valores del xml
			object = initObject(objectNode);
			break;
		}
	}
    if(object == NULL){
        if(xmlTree != NULL){ delete xmlTree; }
		return NULL; //Error
    }

	//Busco las etiquetas de Mesh y reemplazo los valores del xml
	Mesh* mesh = object->getMesh();
	if(mesh->getChilds()->size() > 0){		
		loadMesh(mesh, objectNode);		
	}
	//Busco las etiquetas de Light y las agrego a las luces del objeto
	loadLights(object, objectNode);

	//Guardo el path en el object
	object->setFilename(filename);

    delete xmlTree;
	return object;
}

void UnitParticleSystemType::load(const XmlNode *particleFileNode, const string &dir, const string &path,
		RendererInterface *renderer, std::map<string,vector<pair<string, string> > > &loadedFileList,
		string parentLoader, string techtreePath) {

	try{
		XmlTree xmlTree;

		std::map<string,string> mapExtraTagReplacementValues;
		mapExtraTagReplacementValues["$COMMONDATAPATH"] = techtreePath + "/commondata/";
		xmlTree.load(path, Properties::getTagReplacementValues(&mapExtraTagReplacementValues));
		loadedFileList[path].push_back(make_pair(parentLoader,parentLoader));
		const XmlNode *particleSystemNode= xmlTree.getRootNode();
		
		if(particleFileNode){
			// immediate children in the particleFileNode will override the particleSystemNode
			particleFileNode->setSuper(particleSystemNode);
			particleSystemNode= particleFileNode;
		}
		
		UnitParticleSystemType::load(particleSystemNode, dir, renderer,
				loadedFileList, parentLoader, techtreePath);
	}
	catch(const exception &e){
		SystemFlags::OutputDebug(SystemFlags::debugError,"In [%s::%s Line: %d] Error [%s]\n",__FILE__,__FUNCTION__,__LINE__,e.what());
		throw megaglest_runtime_error("Error loading ParticleSystem: "+ path + "\n" +e.what());
	}
}

XmlTree* ScaenaAnimationWriter::animationsToXmlTree(list<AnimationDataTransfer*>* animations){
	XmlTree* xmlTree = new XmlTree();
	XmlTreeNode* rootNode = xmlTree->getRootNode();

	// Agrego el tag inicial
	XmlTreeNode* safNode = new XmlTreeNode("ScaenaAnimationFile", rootNode);
	rootNode->addChild(safNode);

	// Agrego todas las animaciones
	list<AnimationDataTransfer*>::iterator animIt = animations->begin();
	while( animIt != animations->end() ){

		// Agrego el tag de animacion
		XmlTreeNode* animationNode = new XmlTreeNode("Animation", safNode);
		safNode->addChild(animationNode);

		// Agrego como atributo el nombre de la animacion
		AnimationDataTransfer* animationDataTransfer = *animIt;
		animationNode->addAttribute(new XmlNodeAttribute("Name", animationDataTransfer->name));

		// Agrego cada uno de los keyframes
		list<KeyFrameDataTransfer*>::iterator keyIt = animationDataTransfer->keyframes->begin();
		while(keyIt != animationDataTransfer->keyframes->end()){
			keyFrameToXmlTree(animationNode, *keyIt);
			++keyIt;
		}	
		++animIt;
	}
	return xmlTree;
}

XmlTree::ConstIter::ConstIter( const XmlTree &root, const string &filterPath, bool caseSensitive, char separator )
	: mCaseSensitive( caseSensitive )
{
	mFilter = split( filterPath, separator );

	// we ignore a leading separator so that "/one/two" is equivalent to "one/two"
	if( ( ! filterPath.empty() ) && ( filterPath[0] == separator ) && ( ! mFilter.empty() ) )
		mFilter.erase( mFilter.begin() );

	if( mFilter.empty() ) { // empty filter means nothing matches
		setToEnd( &root.getChildren() );
		return;
	}	

	for( vector<string>::const_iterator filterComp = mFilter.begin(); filterComp != mFilter.end(); ++filterComp ) {
		if( mIterStack.empty() ) // first item
			mSequenceStack.push_back( &root.getChildren() );
		else
			mSequenceStack.push_back( &(*mIterStack.back())->getChildren() );
		
		Container::const_iterator child = findNextChildNamed( *mSequenceStack.back(), mSequenceStack.back()->begin(), *filterComp, mCaseSensitive );
		if( child != (mSequenceStack.back())->end() )
			mIterStack.push_back( child );
		else { // failed to find an item that matches this part of the filter; mark as finished and return
			setToEnd( &root.getChildren() );
			return;
		}
	}
}

XmlTree::ExcChildNotFound::ExcChildNotFound( const XmlTree &node, const string &childPath ) throw()
{
#if defined( CINDER_MSW )
	sprintf_s( mMessage, "Could not find child: %s for node: %s", childPath.c_str(), node.getPath().c_str() );
#else
	sprintf( mMessage, "Could not find child: %s for node: %s", childPath.c_str(), node.getPath().c_str() );
#endif
}

bool  ObjectRenderer::Load(string name){
    char filename[256];
    XmlTree tree;
    sprintf(filename,"Worlds/Objects/%s.xml",name.c_str());
    if(FileFinder::Find(filename)){
        tree.LoadFromFile(FileFinder::GetCStr());
    }
    return Load(&tree);
}

XmlTree::XmlTree( const XmlTree &rhs )
	: mNodeType( rhs.mNodeType ), mTag( rhs.mTag ), mValue( rhs.mValue ), mDocType( rhs.mDocType ),
	 mParent( 0 ), mAttributes( rhs.mAttributes )
{
	for( XmlTree::ConstIter childIt = rhs.begin(); childIt != rhs.end(); ++childIt ) {
		mChildren.push_back( unique_ptr<XmlTree>( new XmlTree( *childIt ) ) );
		mChildren.back()->mParent = this;
	}
}

void PlistReader::trace(XmlTree t){
    for( XmlTree::Iter child = t.begin(); child != t.end(); ++child ){
        console() << "Tag: " << child->getTag() << "  Value: " << child->getValue() << endl;
        if(child->getTag().compare("dict")==0){
            trace(*child);
        }
        
    }
}

bool GenerationProcessor::processScaenaAnimationFile(string& inAnimationFile, string& outAnimationFile, string& keyFrameFBXFile, string& animationName, float keyDuration){
	//Parseo el archivo de modelo
	FbxModelLoader* fbxLoader = new FbxModelLoader();
	ModelDataTransfer* modelDataTransfer = fbxLoader->loadModel(keyFrameFBXFile.c_str());
	KeyFrameDataTransfer* keyframe = getKeyFrameData(modelDataTransfer, 0);
	keyframe->animationTime = keyDuration;
	delete fbxLoader;

	// Si tengo SAF de entrada, lo cargo para agregarle la nueva animacion o keyframe
	if(!inAnimationFile.empty()){
		Logger::getInstance()->logInfo(new Log("Procesando el SAF de salida..."));

		//Leo el archivo y lo parseo en un arbol
		XmlTree* xmlTree = XmlParser::parse(inAnimationFile.c_str());
		XmlTreeNode* rootNode =  xmlTree->getRootNode();

		// Busco el nodo de archivo SAF
		XmlTreeNode* safNode = rootNode->searchDirectChild("ScaenaAnimationFile", 0);
		if(safNode != NULL){
			// Busco si alguna animacion tiene el mismo nombre que la indicada, si no creo una nueva
			XmlTreeNode* animationNode = searchForAnimation(safNode, animationName);
			if(animationNode == NULL){
				animationNode = new XmlTreeNode("Animation", safNode);
				animationNode->addAttribute(new XmlNodeAttribute("Name", animationName));
				safNode->addChild(animationNode);
			}
			// Agrego el keyframe
			XmlTreeNode* keyFrameNode = new XmlTreeNode("KeyFrame", animationNode);
			keyFrameNode->addAttribute(new XmlNodeAttribute("DurationInSeconds", StringUtils::toString(keyframe->animationTime)));
			ScaenaAnimationWriter::skeletonToXmlTree(keyFrameNode, keyframe->getRootSkeleton());			
			animationNode->addChild(keyFrameNode);			

			// Grabo en el archivo SAF (REVIEW: podria dejar de escribir cada cambio en disco)
			XmlParser::writeXmlToFile(outAnimationFile.c_str(), xmlTree);
		}
		else{
			throw new AnimationLoadException("No se puede procesar el SAF de entrada");
		}
	}
	// Si no tengo SAF de entrada, creo la estructura de cero
	else{
		list<AnimationDataTransfer*> animations;
		AnimationDataTransfer* animation = new AnimationDataTransfer();
		animation->name = animationName;
		animation->keyframes->push_back(keyframe);
		animations.push_back(animation);
		// Escribo el SAF e indico que ahora tengo archivo de entrada
		ScaenaAnimationWriter::writeAnimation(outAnimationFile, &animations);
		inAnimationFile = outAnimationFile;
	}	
	delete modelDataTransfer;
	delete keyframe;
	return true;
}

bool World::Load(string name){
    char filename[256];
    XmlTree tree;
    sprintf(filename,"Worlds/%s.xml",name.c_str());
    if(FileFinder::Find(filename)){
        if(tree.LoadFromFile(FileFinder::GetString())){
            return Load(&tree);
        }
    }
    return false;
}

PlistReader::PlistReader()
{
    XmlTree plist =  XmlTree(loadResource( "RECIPES.plist" ) );
    console() << "this is the tag name... " << plist.getTag() << "IS THIS A DOC ELEMENT OR WAHAT???? " << plist.isDocument() << endl;
    try {
        root = plist.getChild("plist");
    } catch(XmlTree::Exception e){
        console() << "darn" << endl;
    }
    //trace(root);
    parseRecipes();
}