XMLAttribute* XMLElement::FindOrCreateAttribute( const char* name )
{
XMLAttribute* last = 0;
XMLAttribute* attrib = 0;
for( attrib = rootAttribute;
attrib;
last = attrib, attrib = attrib->next )
{
if ( XMLUtil::StringEqual( attrib->Name(), name ) ) {
break;
}
}
if ( !attrib ) {
attrib = new (document->attributePool.Alloc() ) XMLAttribute();
attrib->memPool = &document->attributePool;
if ( last ) {
last->next = attrib;
}
else {
rootAttribute = attrib;
}
attrib->SetName( name );
}
return attrib;
}
XMLAttribute* XMLElement::FindOrCreateAttribute( const char* name )
{
XMLAttribute* last = 0;
XMLAttribute* attrib = 0;
for( attrib = _rootAttribute;
attrib;
last = attrib, attrib = attrib->_next ) {
if ( XMLUtil::StringEqual( attrib->Name(), name ) ) {
break;
}
}
if ( !attrib ) {
attrib = new (_document->_attributePool.Alloc() ) XMLAttribute();
attrib->_memPool = &_document->_attributePool;
if ( last ) {
last->_next = attrib;
}
else {
_rootAttribute = attrib;
}
attrib->SetName( name );
attrib->_memPool->SetTracked(); // always created and linked.
}
return attrib;
}
void ConfigSingleton::configure(std::string xml_file_path)
{
//Open XML config file and try to load it
XMLDocument doc;
if(doc.LoadFile(xml_file_path.c_str()) != XML_SUCCESS)
{
std::cerr << "Cannot reach configuration file: " << xml_file_path << "!" << std::endl;
return;
}
//Look for <config> element
XMLElement* pConfig = doc.FirstChildElement("root")->FirstChildElement("config");
if(pConfig==nullptr)
{
std::cerr << "Invalid configuration file: " << xml_file_path << "!" << std::endl;
return;
}
//Iterate attribute list and set parameter values
//Version 2 of TinyXML won't let me iterate over Attribute list this way by returning
//const XMLAttribute*. I'm forced to const_cast before I find an elegant way of doing this.
XMLAttribute* pAttrib = const_cast<XMLAttribute*>(pConfig->FirstAttribute());
while(pAttrib != nullptr)
{
set_parameter(pAttrib->Name(),pAttrib->Value());
pAttrib = const_cast<XMLAttribute*>(pAttrib->Next());
}
}
const XMLAttribute* XMLElement::FindAttribute( const char* name ) const
{
XMLAttribute* a = 0;
for( a=rootAttribute; a; a = a->next ) {
if ( XMLUtil::StringEqual( a->Name(), name ) )
return a;
}
return 0;
}
char* XMLElement::ParseAttributes( char* p )
{
const char* start = p;
XMLAttribute* prevAttribute = 0;
// Read the attributes.
while( p ) {
p = XMLUtil::SkipWhiteSpace( p );
if ( !p || !(*p) ) {
_document->SetError( XML_ERROR_PARSING_ELEMENT, start, Name() );
return 0;
}
// attribute.
if (XMLUtil::IsNameStartChar( *p ) ) {
XMLAttribute* attrib = new (_document->_attributePool.Alloc() ) XMLAttribute();
attrib->_memPool = &_document->_attributePool;
attrib->_memPool->SetTracked();
p = attrib->ParseDeep( p, _document->ProcessEntities() );
if ( !p || Attribute( attrib->Name() ) ) {
DELETE_ATTRIBUTE( attrib );
_document->SetError( XML_ERROR_PARSING_ATTRIBUTE, start, p );
return 0;
}
// There is a minor bug here: if the attribute in the source xml
// document is duplicated, it will not be detected and the
// attribute will be doubly added. However, tracking the 'prevAttribute'
// avoids re-scanning the attribute list. Preferring performance for
// now, may reconsider in the future.
if ( prevAttribute ) {
prevAttribute->_next = attrib;
}
else {
_rootAttribute = attrib;
}
prevAttribute = attrib;
}
// end of the tag
else if ( *p == '/' && *(p+1) == '>' ) {
_closingType = CLOSED;
return p+2; // done; sealed element.
}
// end of the tag
else if ( *p == '>' ) {
++p;
break;
}
else {
_document->SetError( XML_ERROR_PARSING_ELEMENT, start, p );
return 0;
}
}
return p;
}
const XMLAttribute* XMLElement::FindAttribute(const char* name) const
{
for (XMLAttribute* a = _rootAttribute; a; a = a->_next)
{
if (XMLUtil::StringEqual(a->Name(), name))
{
return a;
}
}
return 0;
}
char* XMLElement::ParseAttributes( char* p )
{
const char* start = p;
// Read the attributes.
while( p ) {
p = XMLUtil::SkipWhiteSpace( p );
if ( !p || !(*p) ) {
document->SetError( XML_ERROR_PARSING_ELEMENT, start, Name() );
return 0;
}
// attribute.
if ( XMLUtil::IsAlpha( *p ) ) {
XMLAttribute* attrib = new (document->attributePool.Alloc() ) XMLAttribute();
attrib->memPool = &document->attributePool;
p = attrib->ParseDeep( p, document->ProcessEntities() );
if ( !p || Attribute( attrib->Name() ) ) {
DELETE_ATTRIBUTE( attrib );
document->SetError( XML_ERROR_PARSING_ATTRIBUTE, start, p );
return 0;
}
LinkAttribute( attrib );
}
// end of the tag
else if ( *p == '/' && *(p+1) == '>' ) {
closingType = CLOSED;
return p+2; // done; sealed element.
}
// end of the tag
else if ( *p == '>' ) {
++p;
break;
}
else {
document->SetError( XML_ERROR_PARSING_ELEMENT, start, p );
return 0;
}
}
return p;
}
void XMLElement::DeleteAttribute(const char* name)
{
XMLAttribute* prev = 0;
for (XMLAttribute* a = _rootAttribute; a; a = a->_next)
{
if (XMLUtil::StringEqual(name, a->Name()))
{
if (prev)
{
prev->_next = a->_next;
}
else
{
_rootAttribute = a->_next;
}
DeleteAttribute(a);
break;
}
prev = a;
}
}
void cSDL2DSceneManager::addLayerObjects(c2DLayer *Layer, XMLElement *Element)
{
cSceneObject* Object = new cSceneObject();
unsigned int r=0;
unsigned int g=0;
unsigned int b=0;
if(!Object)
return;
for(XMLAttribute* ElementAttrib = const_cast<XMLAttribute*>(Element->FirstAttribute()); ElementAttrib; ElementAttrib = const_cast<XMLAttribute*>(ElementAttrib->Next()))
{
std::string AttribName = ElementAttrib->Name();
std::string AttribValue = ElementAttrib->Value();
if(AttribName=="resourceID")
{
cResourceManager* ResourceManager = cResourceManager::GetResourceManager();
Object->setResourceObject((cRenderResource*) ResourceManager->findResourcebyID(atoi(AttribValue.c_str())));
}
if(AttribName=="posx")
{
Object->m_PosX = atof(AttribValue.c_str());
}
if(AttribName=="posy")
{
Object->m_PosY = atof(AttribValue.c_str());
}
if(AttribName=="colorkey")
{
if(AttribValue=="true")
Object->m_bColorKeyEnabled=true;
else
Object->m_bColorKeyEnabled=false;
}
if(AttribName=="r")
{
r = atoi(AttribValue.c_str());
}
if(AttribName=="g")
{
g = atoi(AttribValue.c_str());
}
if(AttribName=="b")
{
b = atoi(AttribValue.c_str());
}
}
if(Object->m_bColorKeyEnabled)
Object->setColorKey(r,g,b);
Layer->m_SceneObjects.push_back(Object);
}
bool cSDL2DSceneManager::loadFromXMLFile(std::string Filename)
{
XMLDocument doc(Filename.c_str());
std::list<c2DLayer*> List;
if(doc.LoadFile(Filename.c_str()) == XML_NO_ERROR)
{
//Find resources node
XMLNode* ResourceTree = doc.RootElement();
if(ResourceTree)
{
//Enumerate resource objects
for(XMLNode* child = ResourceTree->FirstChild(); child; child = child->NextSibling())
{
XMLElement *Element = child->ToElement();
if(Element)
{
c2DLayer *Layer = new c2DLayer();
Layer->m_ZOrder = m_Layers.size();
for(XMLAttribute* ElementAttrib = const_cast<XMLAttribute*>(Element->FirstAttribute()); ElementAttrib; ElementAttrib = const_cast<XMLAttribute*>(ElementAttrib->Next()))
{
//Examine layers
std::string AttribName = ElementAttrib->Name();
std::string AttribValue = ElementAttrib->Value();
//Detect resource type. Graphic? Audio? Text?
if(AttribName=="name")
{
Layer->m_Name=AttribValue;
continue;
}
if(AttribName=="posx")
{
Layer->m_PosX = atof(AttribValue.c_str());
}
if(AttribName=="posy")
{
Layer->m_PosY = atof(AttribValue.c_str());
}
if(AttribName=="visible")
{
if(AttribValue=="true")
Layer->m_bVisible=true;
else
Layer->m_bVisible=false;
}
}
m_Layers.push_back(Layer);
//Cycle through layer objects
for(XMLNode* objs = child->FirstChild(); objs; objs = objs->NextSibling())
{
if(std::string(objs->Value())=="objects")
{
for(XMLNode* obj = objs->FirstChild(); obj; obj = obj->NextSibling())
{
XMLElement *ObjElement = obj->ToElement();
addLayerObjects(Layer, ObjElement);
}
}
}
}
}
sortLayers();
return true;
}
}
return false;
}
