/** Add specified item to the grid view */
void AddItem(TSharedPtr<FWorldTileModel> LevelModel)
{
auto NewNode = SNew(SWorldTileItem)
.InWorldModel(WorldModel)
.InItemModel(LevelModel)
.InThumbnailCollection(ThumbnailCollection);
AddGraphNode(NewNode);
}
void CPlanarGraph::AddGraphNodes(int numOfNodes, int parent /* = -1 */)
{
int current = parent;
for ( int i=0; i<numOfNodes; i++ )
{
CGraphNode node;
std::ostringstream os;
os << GetNumOfNodes();
std::string name = "node" + os.str();
node.SetName(name);
AddGraphNode(node);
int curId = GetNumOfNodes() - 1;
if ( current >= 0 )
{
AddGraphEdge(CGraphEdge(current, curId));
}
current = curId;
}
}
bool CPlanarGraph::LoadGraphFromXML(const char* fileName, bool flagDetectFaces /* = true */, bool flagIgnoreIndiv /* = true */)
{
// Clear the current graph...
ClearGraph();
TiXmlDocument doc;
bool loadFlag = doc.LoadFile(fileName);
if ( loadFlag == false )
{
std::cout << "Failed to load graph from " << fileName << "!\n";
return loadFlag;
}
//doc.Print();
TiXmlNode* xmlRoot = 0;
xmlRoot = doc.RootElement();
assert( xmlRoot );
TiXmlNode* xmlNode = xmlRoot->FirstChild();
while ( xmlNode != 0 )
{
if ( strcmp(xmlNode->Value(), "Node") == 0 )
{
// Parse a node...
CGraphNode graphNode;
float px, py;
int rx = xmlNode->ToElement()->QueryFloatAttribute("px", &px);
int ry = xmlNode->ToElement()->QueryFloatAttribute("py", &py);
if ( rx != TIXML_SUCCESS || ry != TIXML_SUCCESS )
{
graphNode.RandomlyInitPos();
}
else
{
graphNode.SetPos(px, py);
}
int type;
int r = xmlNode->ToElement()->QueryIntAttribute("type", &type);
if ( r == TIXML_SUCCESS )
{
graphNode.SetType(type);
}
int boundary;
int rb = xmlNode->ToElement()->QueryIntAttribute("boundary", &boundary);
if ( rb == TIXML_SUCCESS )
{
graphNode.SetBoundaryType(boundary);
}
int fixed;
int rf = xmlNode->ToElement()->QueryIntAttribute("fix", &fixed);
if ( rf == TIXML_SUCCESS && fixed != 0 )
{
graphNode.SetFlagFixed(true);
}
const char* str = xmlNode->ToElement()->Attribute("name");
if ( *str != '\0' )
{
graphNode.SetName(str);
}
AddGraphNode(graphNode);
}
else if ( strcmp(xmlNode->Value(), "Edge") == 0 )
{
// Parse an edge...
int idx0 = -1;
int idx1 = -1;
int r0 = xmlNode->ToElement()->QueryIntAttribute("node0", &idx0);
int r1 = xmlNode->ToElement()->QueryIntAttribute("node1", &idx1);
if ( r0 != TIXML_SUCCESS )
{
const char* str = xmlNode->ToElement()->Attribute("name0");
idx0 = FindNodeAccordingToName(str);
}
if ( r1 != TIXML_SUCCESS )
{
const char* str = xmlNode->ToElement()->Attribute("name1");
idx1 = FindNodeAccordingToName(str);
}
if ( idx0 >= 0 && idx1 >= 0 )
{
CGraphEdge graphEdge(idx0, idx1);
AddGraphEdge(graphEdge);
}
}
// Move to the next sibling...
xmlNode = xmlNode->NextSibling();
}
SetNodeNeighbors();
if ( flagIgnoreIndiv == true )
{
RemoveIndividualNodes();
}
if ( flagDetectFaces == false )
{
return loadFlag;
}
//PrintGraph();
// Step 1: Detect faces of the planar graph...
DetectFaces();
return loadFlag;
}
