1 files changed, 111 insertions, 0 deletions
diff --git a/Common/ComponentData.h b/Common/ComponentData.h
new file mode 100644
index 0000000..75dcdbb
--- /dev/null
+++ b/Common/ComponentData.h
@@ -0,0 +1,111 @@
+//////////////////////////////////////////////////////////////////
+// CComponentData
+// 
+// Exposes the IPropertyBag interface for the components to store
+// their data in.
+//
+// Also supports other host specific settings.
+//
+// Current implementation saves the data in the registry and only
+// saves when requested to by host.
+//
+// Component can pass a Variant NULL to delete the specified 
+// property
+//
+// Only the following types are supported for now: 
+//		VT_UI1 
+//		VT_I2 
+//		VT_I4 
+//		VT_R4 
+//		VT_R8 
+//		VT_CY 
+//		VT_BSTR
+//////////////////////////////////////////////////////////////////
+
+
+#if !defined(COMPONENTDATA_H__2AA70045_1988_11D2_B2D4_0020182B97FC__INCLUDED_)
+#define COMPONENTDATA_H__2AA70045_1988_11D2_B2D4_0020182B97FC__INCLUDED_
+
+#if _MSC_VER >= 1000
+#pragma once
+#endif // _MSC_VER >= 1000
+// ComponentData.h : header file
+//
+
+#define DATA_KEY _T("Data")
+
+#include "../common/interfaces.h"
+#include <map>
+#include <utility>
+using std::map;
+using std::make_pair;
+
+#include <mystring.h>
+
+typedef map<string, CComVariant> string_variant_map;
+
+/////////////////////////////////////////////////////////////////////////////
+// CComponentData command target
+class ATL_NO_VTABLE CComponentData : 
+	public CComObjectRootEx<CComMultiThreadModel>,
+	public IPropertyBag
+{
+
+// Attributes
+public:
+	CComponentData();
+	virtual ~CComponentData();
+
+
+public:
+	// Host specific functions
+	// Add String support later when needed.
+	bool WriteInt(const string& sKey, int nValue);
+	int GetInt(const string& sKey, int nDefault);
+	bool Delete(const string& sKey);
+
+	// Can be used by Host and also called from the 
+	// IPropertyBag Implementation below
+	HRESULT Write(const string& sValName, const VARIANT& varVal);
+	HRESULT Read(const string& sValName, VARIANT& varVal);
+
+	// Initializes Key
+	HRESULT Initialize(const string& sKey);
+
+
+	// Saves All Setting to Registry Key
+	// If sKey = NULL then saves to key given in Initialize
+	HRESULT Save(string sKey = _T(""));
+
+
+	// Returns an IUnknown to IPropertyBag
+//	IUnknown* GetIUnknown(bool bAddRef = false);
+
+
+protected:
+
+	// Arrays of Settings to be written to Registry
+	// Supports Integers and Strings Only
+	string_variant_map m_mapValues;
+
+	// Registry Key
+	string m_sKey;
+
+public:
+
+DECLARE_PROTECT_FINAL_CONSTRUCT()
+
+BEGIN_COM_MAP(CComponentData)
+	COM_INTERFACE_ENTRY(IPropertyBag)
+END_COM_MAP()
+
+	// IPropertyBag Interface
+	STDMETHOD(Read)(LPCOLESTR pszPropName, VARIANT* pVar, IErrorLog* pErrorLog);
+	STDMETHOD(Write)(LPCOLESTR pszPropName, VARIANT* pVar);
+
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+
+#endif // !defined(COMPONENTDATA_H__2AA70045_1988_11D2_B2D4_0020182B97FC__INCLUDED_)