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The SBJ MVC Framework - The Model, from Abstraction to Realization

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20 Mar 2009CPOL19 min read 109.3K   1.3K   51  
A Model-View-Controller Framework that integrates with the MFC Doc/View architecture
 
//------------------------------------------------------------------------------
// $Workfile: XMLModelAccess.cpp $
// $Header: /SbjDev/XmlMvc/XMLModelAccess.cpp 12    10/22/08 4:48p Steve $
//
//	Copyright � 2006 Tartus, Inc.
// All rights reserved.
//
// The information contained herein is confidential, proprietary to
// Tartus, Inc., and considered a trade secret as defined
// in section 499C of the penal code of the State of California.  Use
// of this information by anyone other than authorized employees of
// Tartus, Inc. is granted only under a written non-disclosure
// agreement, which expressly prescribes the scope and manner of such
// use.
//
// *** Authors ***
//	 Neal O'Hara
//	 John La Porta
//	 Zhimin Lin
//	 Andreas Christmann
//	 Steve Johnson
//	 Frankie Jefferson
//	 Tartus, Inc.
//
// $Revision: 12 $
//
//-----------------------------------------------------------------------------

#include "stdafx.h"


namespace localNS
{
	
	void RemoveChild(MSXML2::IXMLDOMElementPtr spChild, 
		MSXML2::IXMLDOMNodePtr spParent)
	{
		SbjCore::Mvc::DME::t_EventRemove eventRemoving(SbjCore::Mvc::DME::Removing, XmlMvc::XmlModelAccess::GetXMLNodeHandle(spChild));
		(void)spParent->removeChild(spChild);
		SbjCore::Mvc::DME::t_EventRemove eventRemoved(SbjCore::Mvc::DME::Removed, XmlMvc::XmlModelAccess::GetXMLNodeHandle(spChild));
	}
	
	void InsertChild(XmlMvc::XmlModelAccess::InsertData* pData)	
	{
		XmlMvc::XmlModelAccess::t_EventInsert eventNodeInserting(SbjCore::Mvc::DME::Inserting, pData, true);
		if (pData->spTheAfter != NULL)
		{
			pData->spTheParent->insertBefore(pData->spTheChild, _variant_t(pData->spTheAfter.GetInterfacePtr()));
		}
		else
		{
			pData->spTheParent->appendChild(pData->spTheChild);
		}
		XmlMvc::XmlModelAccess::t_EventInsert eventNodeInserted(SbjCore::Mvc::DME::Inserted, pData, true);
	}
}
namespace XmlMvc
{
	namespace XmlModelAccess
	{
		MSXML2::IXMLDOMNodePtr InsertChild(
			MSXML2::IXMLDOMElementPtr spChild, 
			MSXML2::IXMLDOMElementPtr spParent, 
			MSXML2::IXMLDOMElementPtr spAfter /*= NULL*/,
			bool bAddToUndoRedo /*= true*/)
		{
			class UndoRedoHandler : public SbjCore::UndoRedo::Handler
			{
				CString sActionName;
				InsertData theEventData;
				HANDLE hNode;
			public:
			
				UndoRedoHandler(
					MSXML2::IXMLDOMElementPtr spChild, 
					MSXML2::IXMLDOMElementPtr spParent, 
					MSXML2::IXMLDOMElementPtr spAfter) :
					sActionName(_T("Insert")),
					theEventData(spChild, spParent, spAfter)
				{
				}

				virtual bool OnHandleUndo()
				{
					HRESULT hr = S_OK;
					bool bRslt = true;
					try
					{
						localNS::RemoveChild(theEventData.spTheChild, theEventData.spTheParent);
					}
					catch (COleException* p) // the new Atl CString throws this 
					{
						ASSERT(FALSE);
						hr = p->m_sc;
						p->Delete();
					}
					catch (_com_error& e) // native type throw this
					{
						ASSERT(FALSE);
						hr = e.Error();
					}
					catch (SbjCore::EventMgr::AbortException* pAbort)
					{
						delete pAbort;
					}
					return bRslt;
				}

				virtual bool OnHandleRedo()
				{
					HRESULT hr = S_OK;
					bool bRslt = true;
					try
					{
						localNS::InsertChild(&theEventData);

						SbjCore::EventMgr::Fire(SbjCore::Mvc::DME::Modified);
					}
					catch (COleException* p) // the new Atl CString throws this 
					{
						ASSERT(FALSE);
						hr = p->m_sc;
						p->Delete();
					}
					catch (_com_error& e) // native type throw this
					{
						ASSERT(FALSE);
						hr = e.Error();
					}
					catch (SbjCore::EventMgr::AbortException* pAbort)
					{
						delete pAbort;
					}
					return bRslt;
				}

				virtual LPCTSTR OnGetHandlerName() const
				{
					return sActionName;
				}
			};
			/////////////////////////////////////////////////////////////////
			HRESULT hr = S_OK;
			MSXML2::IXMLDOMNodePtr spRslt;

			try
			{
				InsertData theData(spChild, spParent, spAfter);
				localNS::InsertChild(&theData);

				SbjCore::EventMgr::Fire(SbjCore::Mvc::DME::Modified);
				if (bAddToUndoRedo)
				{
					UndoRedoHandler* pUndoRedoHandler = new UndoRedoHandler(spChild, spParent, spAfter);
					SbjCore::Mvc::CmdTargetController* pCtrlr = GetDocController();
					pCtrlr->GetUndoRedoMgr()->Push(pUndoRedoHandler);
				
				}
			}
			catch (COleException* p) // the new Atl CString throws this 
			{
				ASSERT(FALSE);
				hr = p->m_sc;
				p->Delete();
			}
			catch (_com_error& e) // native type throw this
			{
				ASSERT(FALSE);
				hr = e.Error();
			}
			catch (SbjCore::EventMgr::AbortException* pAbort)
			{
				delete pAbort;
			}
			return spRslt;
		}

		
		MSXML2::IXMLDOMNodePtr RemoveChild( 
			MSXML2::IXMLDOMElementPtr spChild,
			MSXML2::IXMLDOMNodePtr spParent /*= NULL*/)
		{
			class UndoRedoHandler : public SbjCore::UndoRedo::Handler
			{
				CString sActionName;
				InsertData theEventData;
			public:
				UndoRedoHandler(
					MSXML2::IXMLDOMElementPtr spChild, 
					MSXML2::IXMLDOMElementPtr spParent, 
					MSXML2::IXMLDOMElementPtr spAfter) :
					sActionName(_T("Remove")),
					theEventData(spChild, spParent, spAfter)				{
				}

				virtual bool OnHandleUndo()
				{
					bool bRslt = true;
					
					localNS::InsertChild(&theEventData);
					
					return bRslt;
				}

				virtual bool OnHandleRedo()
				{
					HRESULT hr = S_OK;
					bool bRslt = true;
					try
					{
						localNS::RemoveChild(theEventData.spTheChild, theEventData.spTheParent);

						SbjCore::EventMgr::Fire(SbjCore::Mvc::DME::Modified);
					}
					catch (COleException* p) // the new Atl CString throws this 
					{
						ASSERT(FALSE);
						hr = p->m_sc;
						p->Delete();
					}
					catch (_com_error& e) // native type throw this
					{
						ASSERT(FALSE);
						hr = e.Error();
					}
					catch (SbjCore::EventMgr::AbortException* pAbort)
					{
						delete pAbort;
					}
					return bRslt;
				}

				virtual LPCTSTR OnGetHandlerName() const
				{
					return sActionName;
				}
			};
			
			/////////////////////////////////////////////////////////////////
			HRESULT hr = S_OK;
			MSXML2::IXMLDOMNodePtr spRslt;
			MSXML2::IXMLDOMNodePtr spAfter;
			InsertData theData(spChild, spParent, spAfter);
			

			if (NULL == spParent)
			{
				spParent = spChild->GetparentNode();
			}

			HANDLE hParentNode = GetXMLNodeHandle(spParent);
			hParentNode;

			try
			{
				spAfter = spChild->GetnextSibling();

				localNS::RemoveChild(spChild, spParent);
				
				SbjCore::EventMgr::Fire(SbjCore::Mvc::DME::Modified);
				

				UndoRedoHandler* pUndoRedoHandler = new UndoRedoHandler(spChild, spParent, spAfter);
				SbjCore::Mvc::CmdTargetController* pCtrlr = GetDocController();
				pCtrlr->GetUndoRedoMgr()->Push(pUndoRedoHandler);


			}
			catch (COleException* p) // the new Atl CString throws this 
			{
				ASSERT(FALSE);
				hr = p->m_sc;
				p->Delete();
			}
			catch (_com_error& e) // native type throw this
			{
				ASSERT(FALSE);
				hr = e.Error();
			}
			catch (SbjCore::EventMgr::AbortException* pAbort)
			{
				delete pAbort;
			}

			return spRslt;
		}

		HANDLE GetXMLNodeHandle(MSXML2::IXMLDOMNodePtr sp)
		{
			MSXML2::IXMLDOMElementPtr spDocElement = SbjCore::Utils::Xml::GetDocElement(sp);
			UINT hNext = NULL;
			UINT hItem = NULL;
			(void)SbjCore::Utils::Xml::GetAttribute(spDocElement, _T("nextSbjHandle"), hNext);
			(void)SbjCore::Utils::Xml::GetAttribute(sp, _T("sbjHandle"), hItem);
			if (NULL == hItem)
			{
				hItem = hNext;
				MSXML2::IXMLDOMElementPtr spElement = sp;
				(void)SbjCore::Utils::Xml::SetAttribute(sp, _T("sbjHandle"), hItem);
				(void)SbjCore::Utils::Xml::SetAttribute(spDocElement, _T("nextSbjHandle"), ++hNext);
				SbjCore::EventMgr::Fire(SbjCore::Mvc::DME::Modified);
			}
			
			return (HANDLE)hItem;
		}
		
		CString CookAttrName(LPCTSTR lpsz)
		{
			ASSERT(lpsz != NULL);
			CString s;
			int nIndex = 0;
			while (lpsz[nIndex] != NULL)
			{
				CString sTemp(lpsz[nIndex]);
				if (0 == nIndex)
				{
					s = sTemp.MakeUpper();
				}
				else if (_istupper(lpsz[nIndex]))
				{
					if (!_istupper(lpsz[nIndex - 1]))
					{
						s += " ";
					}
					s += sTemp;
				}
				else
				{
					s += sTemp;
				}
				nIndex++;
			}
			return s;
		}

		///////////////////////////////////////////////////////////////////////////////////

		void AFX_EXT_API GetPointAttributes(MSXML2::IXMLDOMElementPtr sp, CPoint& pt)
		{
			GetAttribute(sp, _T("x"), pt.x);
			GetAttribute(sp, _T("y"), pt.y);
		}

		void AFX_EXT_API SetPointAttributes(MSXML2::IXMLDOMElementPtr sp, const CPoint pt)
		{
			SetAttribute(sp, _T("x"), pt.x);
			SetAttribute(sp, _T("y"), pt.y);
		}

		void AFX_EXT_API GetRectAttributes(MSXML2::IXMLDOMElementPtr sp, CRect& r)
		{
			GetAttribute(sp, _T("left"), r.left);
			GetAttribute(sp, _T("top"), r.top);
			GetAttribute(sp, _T("right"), r.right);
			GetAttribute(sp, _T("bottom"), r.bottom);
		}

		void AFX_EXT_API SetRectAttributes(MSXML2::IXMLDOMElementPtr sp, const CRect r)
		{
			class UndoRedoHandler : public SbjCore::UndoRedo::Handler
			{
				CString sActionName;
				ChangeData data;
				HANDLE hNode;
				CRect rBefore;
				CRect rAfter;
			public:
				UndoRedoHandler(MSXML2::IXMLDOMElementPtr sp, CRect rB, CRect rA) :
					sActionName(_T("Move")),
					data(sp, _T("Rectangle")),
					hNode(NULL),
					rBefore(rB),
					rAfter(rA)
				{
					if (rBefore.TopLeft() == rAfter.TopLeft())
					{
						if (rBefore.BottomRight() != rAfter.BottomRight())
						{
							sActionName = _T("Resize");
						}
					}
					else if (rBefore.BottomRight() == rAfter.BottomRight())
					{
						sActionName = _T("Resize");
					}
					
					
					hNode = GetXMLNodeHandle(data.spTheElement);
				}

				virtual bool OnHandleUndo()
				{
					bool bRslt = true;

					SetAttribute(data.spTheElement, _T("left"), rBefore.left);
					SetAttribute(data.spTheElement, _T("top"), rBefore.top);
					SetAttribute(data.spTheElement, _T("right"), rBefore.right);
					SetAttribute(data.spTheElement, _T("bottom"), rBefore.bottom);
					t_EventChange eventNodeChanged(SbjCore::Mvc::DME::Changed, &data, true);

					return bRslt;
				}

				virtual bool OnHandleRedo()
				{
					bool bRslt = true;

					SetAttribute(data.spTheElement, _T("left"), rAfter.left);
					SetAttribute(data.spTheElement, _T("top"), rAfter.top);
					SetAttribute(data.spTheElement, _T("right"), rAfter.right);
					SetAttribute(data.spTheElement, _T("bottom"), rAfter.bottom);
					t_EventChange eventNodeChanged(SbjCore::Mvc::DME::Changed, &data, true);

					return bRslt;
				}

				virtual LPCTSTR OnGetHandlerName() const
				{
					return sActionName;
				}
			};
			/////////////////////////////////////////////////////////////////
			CRect rB;
			GetRectAttributes(sp, rB);
			UndoRedoHandler* pUndoRedoHandler = new UndoRedoHandler(sp, rB, r);
			SbjCore::Mvc::CmdTargetController* pCtrlr = GetDocController();
			pCtrlr->GetUndoRedoMgr()->Push(pUndoRedoHandler);
			SetAttribute(sp, _T("left"), r.left);
			SetAttribute(sp, _T("top"), r.top);
			SetAttribute(sp, _T("right"), r.right);
			SetAttribute(sp, _T("bottom"), r.bottom);
		}
		
		CString AssureNewVal(MSXML2::IXMLDOMElementPtr spNode, LPCTSTR lpszAttr, LPCTSTR lpszVal)
		{
			HRESULT hr = NULL;
			MSXML2::IXMLDOMNodeListPtr spNodeList = NULL;
			CString sVal(lpszVal);
			CString sXPath;
			sXPath.Format(_T("*[starts-with(@%s, '%s')]"), lpszAttr, lpszVal);
			try
			{
				spNodeList = spNode->selectNodes((LPCTSTR)sXPath);
			}
			catch (_com_error& e) // native type throw this
			{
				hr = e.Error();
			}
			
			if (spNodeList != NULL)
			{
				int nCount = spNodeList->Getlength();

				if (nCount > 0)
				{
					nCount++;
					sVal.Format(_T("%s (%d)"), lpszVal, nCount);
				}
			}

			return sVal;
		}

		

	}
}

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Written By
SBJ
United States United States
Real name is Steve Johnson. Programming since 1979. Started on a Heathkit Micro with a DEC LSI-11 and UCSD Pascal. Moved to PCs & DOS as soon as Turbo Pascal became available. Did some Assembly, ISR, TSR etc. All this while working for a Manufacturing Co. for 8 years. Had my own solo Co. doing barcode labeling software for 4 years (terrible business man, all I wanted to do was code). Since then working for various software companies. Moved to Windows around the time of 3.1 with Borland C then C++. Then on to VC++ and MFC, and just about anything I could get my hands on or had to learn for my job, and been at it ever since. Of course recently I've been playing with .NET, ASP, C#, WPF etc.

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Posted 24 Nov 2008

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