The SBJ MVC Framework - The Design View, Responding to Model Change

//------------------------------------------------------------------------------
// $Workfile: ShapesDoc.cpp $
// $Header: /SbjDev/Shapes/ShapesDoc.cpp 5     11/24/08 10:33a Steve $
//
//	Copyright � 2008 SbjCat
// All rights reserved.
//
//
// *** Authors ***
//	 Steve Johnson
//
// $Revision: 5 $
//
//-----------------------------------------------------------------------------

#include "stdafx.h"
#include "Shapes.h"
#include "ShapesDoc.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

namespace localNS
{

	// Message Handlers /////////////////////////////////////////////////////////////////
	class InsertShapeHandler : public SbjCore::Mvc::CmdMsgHandler
	{
		CString sShapeType;
	public:
		InsertShapeHandler(LPCTSTR lpszShapeType) :
			sShapeType(lpszShapeType)
		{
		
		}
	private:
		virtual bool OnHandleCmd(UINT nID)
		{
			nID;
			bool bRslt = false;
			SbjCore::Mvc::Model::Controller* pModelCtrlr = dynamic_cast<SbjCore::Mvc::Model::Controller*>(GetController());
			SbjCore::Mvc::Model::ItemHandles theItems;
			int nCount = pModelCtrlr->GetItemChildren(SbjCore::Mvc::Model::Controller::GetItemRoot(), theItems);
			if (1 == nCount)
			{
				HANDLE hDrawing = theItems[0];
				HANDLE hItem = pModelCtrlr->CreateItem(sShapeType);
				if (hItem != NULL)
				{
					CString sFmt;
					sFmt.Format(_T("New %s"), sShapeType);
					CString sLabel(pModelCtrlr->AssureUniqueItemAttrValue(hDrawing, _T("label"), (LPCTSTR)sFmt));
					(void)pModelCtrlr->SetItemAttrValue( hItem, _T("label"), (LPCTSTR)sLabel);
					
					DWORD dw = ::GetMessagePos();
					CPoint pt(GET_X_LPARAM((LPARAM)dw), GET_Y_LPARAM((LPARAM)dw));
					CWnd* pWnd = CWnd::FromHandle(GetFocus());
					pWnd->ScreenToClient(&pt);
					CRect r(pt.x, pt.y, pt.x + 350, pt.y + 200);
					SbjCore::Mvc::Model::Rect::SetItemValue(pModelCtrlr, hItem, r);
					
					(void)pModelCtrlr->SetItemAttrValue( hItem, _T("borderRGB"), RGB(0,0,0));
					(void)pModelCtrlr->SetItemAttrValue( hItem, _T("borderWidth"), 5);
					(void)pModelCtrlr->SetItemAttrValue( hItem, _T("fillRGB"), RGB(255,255,255));
					
					bRslt = pModelCtrlr->InsertChild(hItem, hDrawing, NULL);
				}
			}
			return bRslt;
		}
	
		virtual bool OnHandleCmdUI(CCmdUI* pCmdUI)
		{
			bool bRslt = true;
	
			pCmdUI->Enable(true);
	
			return bRslt;
		};
	
	};

}


struct ShapesDocImpl : public XmlMvc::XmlDoc::Controller
{
	HANDLE hDrawing;
	localNS::InsertShapeHandler theInsertRectangleHandler;
	localNS::InsertShapeHandler theInsertEllipseHandler;

	ShapesDocImpl()	:
		hDrawing(NULL),
		theInsertRectangleHandler(_T("Rectangle")),
		theInsertEllipseHandler(_T("Ellipse"))
	{
		SetDocElementName(_T("Shapes"));
		AddHandler(ID_CMDS_NEWRECTANGLE, &theInsertRectangleHandler);
		AddHandler(ID_CMDS_NEWELLIPSE, &theInsertEllipseHandler);
	}
	virtual ~ShapesDocImpl()
	{
	}
	
	virtual BOOL OnNewDocument()
	{
		XmlMvc::XmlDoc::Controller::OnNewDocument();
		HANDLE hItem = CreateItem(_T("Drawing"));
		SetItemAttrValue(hItem, _T("name"), _T("New Drawing"));
		BOOL bRslt = InsertChild(hItem, SbjCore::Mvc::Model::Controller::GetItemRoot(), NULL, false);
		SbjCore::Mvc::Doc::Events::DocModified event(false);
		return bRslt;
	}
	
};

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

IMPLEMENT_DYNCREATE(ShapesDoc, t_Base)

BEGIN_MESSAGE_MAP(ShapesDoc, t_Base)
END_MESSAGE_MAP()

ShapesDoc::ShapesDoc() :
	m_pImpl(new ShapesDocImpl)
{
	SetController(m_pImpl);
}

ShapesDoc::~ShapesDoc()
{
	try
	{
		delete m_pImpl;
	}
	catch(...)
	{
		ASSERT(FALSE);
	}
}

#ifdef _DEBUG
void ShapesDoc::AssertValid() const
{
	t_Base::AssertValid();
}
void ShapesDoc::Dump(CDumpContext& dc) const
{
	t_Base::Dump(dc);
}
#endif //_DEBUG


//*** Modification History ***
// $Log: /SbjDev/Shapes/ShapesDoc.cpp $
// 
// 5     11/24/08 10:33a Steve
// Final changes before MVCChapt1 v2.0.1