Initial

splitter/NewsTree.cpp

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+#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);
+}
+