store headers only once, refs #7

actlibrary/include/actIParam.h

@@ -0,0 +1,67 @@
+// ---------------------------------------------------------------------------
+// Name:		actIParam.h
+// Product:		cv act library
+// Purpose:		Declares act::IParam interface.
+//            
+// Copyright:	(c) 2006 cv cryptovision GmbH 
+//              all rights reserved.
+// Licence:		The conditions for the use of this software are regulated 
+//				in the cv act library licence agreement.
+//
+// Autor:		Markus Tesche (MTE)
+// Date:		3/1/2006
+// ---------------------------------------------------------------------------
+
+#ifndef ACT_IParam_h
+#define ACT_IParam_h
+
+#include "actBasics.h"
+
+namespace act 
+{
+	class Blob;
+
+	enum
+	{
+		PARAM_ANY				= -3,
+		PARAM_UNKNOWN_SIZE		= -2,
+		PARAM_INVALID_VALUE		= -1,
+		PARAM_FALSE				=  0,
+		PARAM_TRUE				=  1
+	};
+
+	static inline int param_bool(bool value)
+	{
+		return value == true ? PARAM_TRUE : PARAM_FALSE;
+	}
+
+	//
+	// IParam
+	class IParam
+	{
+	public:
+		virtual ~IParam() { }
+
+		virtual void SetParam(paramid_t id, int value) = 0;
+		virtual void SetParam(paramid_t id, const char* value) = 0;
+		virtual void SetParam(paramid_t id, const Blob& value) = 0;
+
+		//
+		// Get value for id, otherwise PARAM_INVALID_VALUE.
+		// NOTE: May throws an act::Exception derived exception.
+		virtual int GetParam(paramid_t id) const = 0;
+
+		//
+		// Get value for id, returns size[PARAM_UNKNOWN_SIZE|0-n] or PARAM_INVALID_VALUE.
+		// NOTE: May throws an act::Exception derived exception.
+		virtual size_t GetParam(paramid_t id, const char** value) const = 0;
+
+		//
+		// Get value for id, returns size[PARAM_UNKNOWN_SIZE|0-n] or PARAM_INVALID_VALUE.
+		// NOTE: May throws an act::Exception derived exception.
+		virtual size_t GetParam(paramid_t id, Blob& value) const = 0;
+	};
+
+} // namespace act
+
+#endif // ACT_IParam_h