An XML parser and editor with shades of a Design Pattern

// TXMLReaderView.h : interface of the CTXMLEditorView class
//


#pragma once

#include<afxcview.h>

#include "EditTreeCtrlEx.h"

class CTXMLEditorView;
class CXMLTreeCtrl : public CEditTreeCtrlEx 
{
public:
	CXMLTreeCtrl()
	{
		_bNewParent = false;
		_bAttrib = false;
		_view = NULL;
	}

	void SetParentView(CTXMLEditorView* view)
	{
		_view = view;
	}
	
	protected:
		virtual void OnNewItem(HTREEITEM hItem);
		virtual bool NewItem(TVINSERTSTRUCT& ins);
		virtual bool DoDeleteItem(HTREEITEM hItem);		
		
public:
	DECLARE_MESSAGE_MAP()
public:
	afx_msg void OnTvnBeginlabeledit(NMHDR *pNMHDR, LRESULT *pResult);	
public:
	afx_msg void OnTvnDeleteitem(NMHDR *pNMHDR, LRESULT *pResult);

private:	
	CTXMLEditorView* _view;
	
	bool _bNewParent;
	bool _bAttrib;

protected:
	virtual BOOL OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult);
};


class CTXMLEditorView : public CView
{
protected: // create from serialization only
	CTXMLEditorView();
	DECLARE_DYNCREATE(CTXMLEditorView)

// Attributes
public:
	CTXMLEditorDoc* GetDocument() const;
	CXMLTreeCtrl& GetTreeCtrl()
	{
		return m_treeCtrl;
	}	
	
	void SetModified(BOOL modified);
	

// Operations
public:
	void PopulateTreeCtrl(TXMLParser& parser, TXMLNode* curNode, HTREEITEM hParent);
// Overrides
public:
	virtual void OnDraw(CDC* pDC);  // overridden to draw this view
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
protected:
	virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);
	virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo);
	virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);

// Implementation
public:
	virtual ~CTXMLEditorView();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:
	CXMLTreeCtrl m_treeCtrl;
	void UpdateXMLDocument();
// Generated message map functions
protected:
	DECLARE_MESSAGE_MAP()
public:
	virtual BOOL CreateEx(DWORD dwExStyle, LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, LPVOID lpParam = NULL);
public:
	afx_msg void OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized);
	afx_msg void OnFilePrintPreview();	
public:
	afx_msg void OnShowWindow(BOOL bShow, UINT nStatus);
public:
	afx_msg void OnPaint();
protected:
	virtual void OnUpdate(CView* /*pSender*/, LPARAM /*lHint*/, CObject* /*pHint*/);
public:
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
public:
	afx_msg void OnSize(UINT nType, int cx, int cy);
public:
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
public:
	virtual void OnFinalRelease();
public:
	afx_msg void OnFileSave();
public:
	afx_msg void OnFileSaveAs();
public:
	afx_msg void OnUpdateFileSaveAs(CCmdUI *pCmdUI);
public:
	virtual BOOL OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo);
	void FormXMLDocFromTree(HTREEITEM hParent, TXMLNode* parent);
};

#ifndef _DEBUG  // debug version in TXMLReaderView.cpp
inline CTXMLReaderDoc* CTXMLEditorView::GetDocument() const
   { return reinterpret_cast<CTXMLReaderDoc*>(m_pDocument); }
#endif