#include <splitter/NewsTree.hpp>
#include <common/file.hpp>
#include <common/qsort.hpp>

NewsTree::NewsTree(GUIWindow &parentWindow,const Rect &winRect,int controlID)
: FolderTree(parentWindow,winRect,controlID)
{
	mSelChangedHandler.setCallback(this,&NewsTree::selChangedHandler);
	mSelChangingHandler.setCallback(this,&NewsTree::selChangingHandler);
	mItemExpandingHandler.setCallback(this,&NewsTree::itemExpandingHandler);
	mItemExpandedHandler.setCallback(this,&NewsTree::itemExpandedHandler);
	mBeginDragHandler.setCallback(this,&NewsTree::beginDragHandler);
	insertHandler(FolderTree::SelChangedHandler,&mSelChangedHandler);
	insertHandler(FolderTree::SelChangingHandler,&mSelChangingHandler);
	insertHandler(FolderTree::ItemExpandingHandler,&mItemExpandingHandler);
	insertHandler(FolderTree::ItemExpandedHandler,&mItemExpandedHandler);
	insertHandler(FolderTree::BeginDragHandler,&mBeginDragHandler); 
	addItems();
}

NewsTree::~NewsTree()
{
}

CallbackData::ReturnType NewsTree::selChangedHandler(CallbackData &cbData)
{
  String currentSelection;

  ::OutputDebugString("MainFrame::selChangedHandler\n");
	currentSelection=this->currentSelection();
  ItemType itemType=getItemType(cbData.lParam());
	if(GroupNode==itemType)::OutputDebugString("GroupNode");
	else if(RootNode==itemType)::OutputDebugString("RootNode");
	else if(NewsNode==itemType)::OutputDebugString("NewsNode");
  return false;
}

CallbackData::ReturnType NewsTree::selChangingHandler(CallbackData &cbData)
{
  ::OutputDebugString("MainFrame::selChangingHandler\n");
  return false;
}

CallbackData::ReturnType NewsTree::itemExpandingHandler(CallbackData &cbData)
{
  ::OutputDebugString("MainFrame::itemExpandingHandler\n");
  return false;
}

CallbackData::ReturnType NewsTree::itemExpandedHandler(CallbackData &cbData)
{
  ::OutputDebugString("MainFrame::itemExpandedHandler\n");
  return false;
}

CallbackData::ReturnType NewsTree::beginDragHandler(CallbackData &cbData)
{
  ::OutputDebugString("MainFrame::beginDragHandler\n");
  return false;
}

// ********************************************************************************

void NewsTree::addItems()
{
  Block<String> groupNames;
	TreeView::NodeType nodeType;

  String rootNodeName("news.optonline.net");
	addRootNode(0,rootNodeName,makeItemID(RootNode,0));
	loadGroups(groupNames);
	for(int index=0;index<groupNames.size();index++)
	{
	  if(!index)nodeType=TreeView::NodeChild;
		else nodeType=TreeView::NodeSibling;
		String item(groupNames[index]);
    TreeViewItem insertItem(0,0,0,0,(char*)item.str(),item.length(),FolderTree::FolderClosed,FolderTree::FolderOpen,0,makeItemID(GroupNode,index+1));
    addNode(nodeType,insertItem,rootNodeName);
	} 
}

void NewsTree::loadGroups(Block<String> &strLines)
{
  QuickSort<String> stringSorter;
  File inFile("newssrc","rb");
	String strLine;
	int max=4;
	int count=0;

	if(!inFile.isOkay())return;
	strLines.remove();
	while(inFile.readLine(strLine)&&count++<max)strLines.insert(&strLine);
	stringSorter.sortItems(strLines);
}