Writing a Platform and GUI Toolkit Independent OpenGL Class

// This MFC Samples source code demonstrates using MFC Microsoft Office Fluent User Interface 
// (the "Fluent UI") and is provided only as referential material to supplement the 
// Microsoft Foundation Classes Reference and related electronic documentation 
// included with the MFC C++ library software.  
// License terms to copy, use or distribute the Fluent UI are available separately.  
// To learn more about our Fluent UI licensing program, please visit 
// http://msdn.microsoft.com/officeui.
//
// Copyright (C) Microsoft Corporation
// All rights reserved.

// GLViewMFCMDIAppView.cpp : implementation of the CGLViewMFCMDIAppView class
//

#include "stdafx.h"
#include "GLViewMFCMDIApp.h"

#include "GLViewMFCMDIAppDoc.h"
#include "GLViewMFCMDIAppView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CGLViewMFCMDIAppView

IMPLEMENT_DYNCREATE(CGLViewMFCMDIAppView, CView)

BEGIN_MESSAGE_MAP(CGLViewMFCMDIAppView, CView)
	ON_WM_SIZE()
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, &CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, &CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, &CGLViewMFCMDIAppView::OnFilePrintPreview)
END_MESSAGE_MAP()

// CGLViewMFCMDIAppView construction/destruction

CGLViewMFCMDIAppView::CGLViewMFCMDIAppView()
{
	// TODO: add construction code here
	m_pGLView = new CGLView();
}

CGLViewMFCMDIAppView::~CGLViewMFCMDIAppView()
{
	if(m_pGLView)
	{
		delete m_pGLView;
	}
}

BOOL CGLViewMFCMDIAppView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs
	return CView::PreCreateWindow(cs);
}

void CGLViewMFCMDIAppView::OnInitialUpdate()
{
	CView::OnInitialUpdate();
	if(m_pGLView)
	{
		m_pGLView->SetWindow(GetSafeHwnd());
		m_pGLView->SetupGLContext(true);
		CRect rect;
		GetClientRect(&rect);
		m_pGLView->Resize(rect.Width(), rect.Height());
	}
}
// CGLViewMFCMDIAppView drawing

void CGLViewMFCMDIAppView::OnDraw(CDC* /*pDC*/)
{
	CGLViewMFCMDIAppDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;

	// TODO: add draw code for native data here
	if(m_pGLView)
	{
		m_pGLView->RenderScene();;
	}
}


// CGLViewMFCMDIAppView printing


void CGLViewMFCMDIAppView::OnFilePrintPreview()
{
	AFXPrintPreview(this);
}

BOOL CGLViewMFCMDIAppView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CGLViewMFCMDIAppView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CGLViewMFCMDIAppView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

void CGLViewMFCMDIAppView::OnRButtonUp(UINT nFlags, CPoint point)
{
	ClientToScreen(&point);
	OnContextMenu(this, point);
}

void CGLViewMFCMDIAppView::OnContextMenu(CWnd* pWnd, CPoint point)
{
	theApp.GetContextMenuManager()->ShowPopupMenu(IDR_POPUP_EDIT, point.x, point.y, this, TRUE);
}


// CGLViewMFCMDIAppView diagnostics

#ifdef _DEBUG
void CGLViewMFCMDIAppView::AssertValid() const
{
	CView::AssertValid();
}

void CGLViewMFCMDIAppView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CGLViewMFCMDIAppDoc* CGLViewMFCMDIAppView::GetDocument() const // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CGLViewMFCMDIAppDoc)));
	return (CGLViewMFCMDIAppDoc*)m_pDocument;
}
#endif //_DEBUG


// CGLViewMFCMDIAppView message handlers
void CGLViewMFCMDIAppView::OnSize(UINT nType, int cx, int cy)
{
	CView::OnSize(nType, cx, cy);
	if(m_pGLView)
	{
		m_pGLView->Resize(cx, cy);
	}
}