// XTPHelpers.h interface
//
// This file is a part of the XTREME CONTROLS MFC class library.
// (c)1998-2011 Codejock Software, All Rights Reserved.
//
// THIS SOURCE FILE IS THE PROPERTY OF CODEJOCK SOFTWARE AND IS NOT TO BE
// RE-DISTRIBUTED BY ANY MEANS WHATSOEVER WITHOUT THE EXPRESSED WRITTEN
// CONSENT OF CODEJOCK SOFTWARE.
//
// THIS SOURCE CODE CAN ONLY BE USED UNDER THE TERMS AND CONDITIONS OUTLINED
// IN THE XTREME TOOLKIT PRO LICENSE AGREEMENT. CODEJOCK SOFTWARE GRANTS TO
// YOU (ONE SOFTWARE DEVELOPER) THE LIMITED RIGHT TO USE THIS SOFTWARE ON A
// SINGLE COMPUTER.
//
// CONTACT INFORMATION:
// support@codejock.com
// http://www.codejock.com
//
/////////////////////////////////////////////////////////////////////////////

//{{AFX_CODEJOCK_PRIVATE
#if !defined(__XTHELPERS_H__)
#define __XTHELPERS_H__


#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

// Safely selects object into device context
template <class T>
class CXTPContextObjectHandler
{
	T* m_pObject;
	CDC* m_pDC;
public:
	CXTPContextObjectHandler(CDC* pDC, T* object)
	: m_pDC(pDC), m_pObject(pDC->SelectObject(object))
	{  }

	~CXTPContextObjectHandler()
	{
		if (m_pObject)
		{
			m_pDC->SelectObject(m_pObject);
		}
	}
};

// Background mode context handler
class CXTPContextBkModeHandler
{
	int m_nMode;
	CDC* m_pDC;
public:
	CXTPContextBkModeHandler(CDC* pDC, int nNewMode)
	: m_pDC(pDC), m_nMode(pDC->SetBkMode(nNewMode))
	{ }

	~CXTPContextBkModeHandler()
	{
		m_pDC->SetBkMode(m_nMode);
	}

};

// Text color context handler
class CXTPContextTextColorHandler
{
	COLORREF m_clrFore;
	CDC* m_pDC;
public:
	CXTPContextTextColorHandler(CDC* pDC, int clrFore)
	: m_pDC(pDC), m_clrFore(pDC->SetTextColor(clrFore))
	{ }

	~CXTPContextTextColorHandler()
	{
		m_pDC->SetTextColor(m_clrFore);
	}

};

// Background color context handler
class CXTPContextBkColorHandler
{
	COLORREF m_clrBack;
	CDC* m_pDC;
public:
	CXTPContextBkColorHandler(CDC* pDC, int clrBack)
	: m_pDC(pDC), m_clrBack(pDC->SetBkColor(clrBack))
	{ }

	~CXTPContextBkColorHandler()
	{
		m_pDC->SetBkColor(m_clrBack);
	}
};

// Handles viewport origin
class CXTPContextViewPortOrgHandler
{
	CPoint  m_pointOrigin;
	CDC* m_pDC;
public:
	CXTPContextViewPortOrgHandler(CDC* pDC, const CPoint& pointOrigin)
	: m_pDC(pDC), m_pointOrigin(pDC->SetViewportOrg(pointOrigin))
	{ }

	~CXTPContextViewPortOrgHandler()
	{
		m_pDC->SetViewportOrg(m_pointOrigin);
	}
};

#endif // #if !defined(__XTHELPERS_H__)

//}}AFX_CODEJOCK_PRIVATE