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