/**
 * @file XTPPropExchangeRegistry.h
 *
 * @copyright
 * (c) 1998-2025 Codejock Software, All Rights Reserved.
 *
 * This source file is the property of Codejock Software and must not be
 * redistributed by any means without the explicit written permission of
 * Codejock Software.
 *
 * The use of this source code is governed by the terms and conditions specified
 * in the Toolkit Pro license agreement. Codejock Software grants you, as a
 * single software developer, the limited right to use this software on one
 * computer only.
 *
 * Contact Information:
 * support@codejock.com
 * http://www.codejock.com
 *
 */

/** @cond */
#if !defined(__XTPPROPEXCHANGEREGISTRY_H__)
#	define __XTPPROPEXCHANGEREGISTRY_H__
/** @endcond */

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

#	include "Common/Base/Diagnostic/XTPDisableNoisyWarnings.h"

/**
 * @brief
 * CXTPPropExchangeRegistry is CXTPPropExchange derived class.
 * The CXTPPropExchangeRegistry class allows you to save a complex network of objects in a
 * system registry that persists after those objects are deleted. Later you can load the objects
 * from persistent storage, reconstituting them in memory. This process of making data
 * persistent is called 'serialization.'
 *
 * <b>Example:</b>
 * <pre>
 * HKEY hKey = AfxGetApp()->GetAppRegistryKey();
 * CXTPPropExchangeRegistry px(FALSE, hKey, szSection);
 * DoPropExchange(&px);
 * RegCloseKey(hKey);
 * </pre>
 */
class _XTP_EXT_CLASS CXTPPropExchangeRegistry : public CXTPPropExchange
{
	/** @cond */
	DECLARE_DYNAMIC(CXTPPropExchangeRegistry)
	/** @endcond */
public:
	/**
	 * @brief
	 * Constructs CXTPPropExchangeRegistry a object.
	 * @param bLoading    A flag that specifies whether objects will be loaded from or stored.
	 * @param hParentKey  Root HKEY
	 * @param lpszSection Points to a null-terminated string that specifies the section containing
	 * the entry.
	 */
	CXTPPropExchangeRegistry(BOOL bLoading, HKEY hParentKey, LPCTSTR lpszSection);

	/**
	 * @brief
	 * Destroys a CXTPPropExchangeRegistry object, handles cleanup and
	 * deallocation.
	 */
	~CXTPPropExchangeRegistry();

	/**
	 * @brief
	 * Exchanges a property between a storage medium and the control.
	 * @param pszPropName The name of the property being exchanged.
	 * @param vtProp      A symbol specifying the type of the property being
	 * exchanged.
	 * @param pvProp      A pointer to the property's value.
	 * @param pvDefault   Pointer to a default value for the property.
	 * @details
	 * Possible values of properties are:
	 * <pre>
	 * Symbol         Property Type
	 * -------------  -------------
	 * VT_I2          short
	 * VT_I4          long
	 * VT_BOOL        BOOL
	 * VT_BSTR        CString
	 * VT_CY          CY
	 * VT_R4          float
	 * VT_R8          double
	 * </pre>
	 * @return
	 * Nonzero if the exchange was successful; 0 if unsuccessful.
	 */
	virtual BOOL ExchangeProp(LPCTSTR pszPropName, VARTYPE vtProp, void* pvProp,
							  const void* pvDefault = NULL);

	/**
	 * @brief
	 * This method serializes a property that stores binary large object (BLOB) data.
	 * @param pszPropName The name of the property being exchanged.
	 * @param pData       A pointer to a user-supplied buffer that contains the data to be
	 * serialized
	 * @param nBytes      An integer that specifies the number of bytes to be read or written.
	 * @return
	 * Nonzero if the exchange was successful; 0 if unsuccessful.
	 */
	virtual BOOL ExchangeBlobProp(LPCTSTR pszPropName, BYTE*& pData, DWORD& nBytes);

	/**
	 * @brief
	 * Call this method to check if section exists.
	 * @param lpszSection The name of the section being checked.
	 * @return True if section exists, false is not
	 */
	BOOL IsSectionExists(LPCTSTR lpszSection);

	/**
	 * @brief
	 * Call this method to check if property entry exists.
	 * @param pszPropName The name of the property being checked.
	 * @return True if section exists, false is not
	 */
	BOOL IsPropertyExists(LPCTSTR pszPropName);

	/**
	 * @brief
	 * This method creates new section for text base storages (CXTPPropExchangeXMLNode and
	 * CXTPPropExchangeRegistry)
	 * @param lpszSection The name of the section.
	 * @return
	 * CXTPPropExchange pointer to new section. You must delete this pointer or use
	 * CXTPPropExchangeSection to manage it.
	 *
	 * <b>Example:</b>
	 * <pre>
	 * CXTPPropExchangeSection pxTaskPanel(px.GetSection(_T("TaskPanel")));
	 * m_wndTaskPanel.GetGroups()->DoPropExchange(&pxTaskPanel);
	 * </pre>
	 */
	virtual CXTPPropExchange* GetSection(LPCTSTR lpszSection);

	/**
	 * @brief
	 * Call this method to free section information before storing
	 */
	virtual void EmptySection();

	/**
	 * @brief
	 * This method is called before exchange properties.
	 * @return
	 * TRUE if storage ready to exchange properties.
	 */
	virtual BOOL OnBeforeExchange();

	/**
	 * @brief
	 * Call this method to determine if storage allows exchange plain blob values.
	 * @return
	 * TRUE if storage allows exchange plain blob values.
	 */
	virtual BOOL IsAllowBlobValues() const;

private:
	LONG DelRegTreeHelper(HKEY hParentKey, LPCTSTR lpszKeyName);

protected:
	HKEY m_hSectionKey;		  /**< Current registry key */
	HKEY m_hParentKey;		  /**< Parent registry key */
	CString m_strSectionName; /**< Section name */
	BOOL m_bCloseParentKey;   /**< TRUE to automatically close parent key */
};

AFX_INLINE BOOL CXTPPropExchangeRegistry::IsAllowBlobValues() const
{
	return TRUE;
}

#	include "Common/Base/Diagnostic/XTPEnableNoisyWarnings.h"
/** @cond */
#endif // !defined(__XTPPROPEXCHANGEREGISTRY_H__)
/** @endcond */