74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//------------------------------------------------------------------------
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// Project : VST SDK
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//
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// Category : Helpers
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// Filename : public.sdk/source/vst/vsthelpers.h
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// Created by : Steinberg, 11/2018
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// Description : common defines
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//
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//-----------------------------------------------------------------------------
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// This file is part of a Steinberg SDK. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this distribution
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// and at www.steinberg.net/sdklicenses.
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// No part of the SDK, including this file, may be copied, modified, propagated,
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// or distributed except according to the terms contained in the LICENSE file.
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//-----------------------------------------------------------------------------
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#pragma once
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#include "pluginterfaces/base/funknownimpl.h"
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#include "pluginterfaces/base/ibstream.h"
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#include "pluginterfaces/base/ustring.h"
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#include "pluginterfaces/vst/ivstattributes.h"
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#include "pluginterfaces/vst/vstpresetkeys.h"
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#include <cstring>
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//------------------------------------------------------------------------
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namespace Steinberg {
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namespace Vst {
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namespace Helpers {
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//------------------------------------------------------------------------
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/** Helpers */
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//------------------------------------------------------------------------
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//------------------------------------------------------------------------
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/** Retrieve from a IBStream the state type, here the StateType::kProject
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return kResultTrue if the state is coming from a project,
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return kResultFalse if the state is coming from a preset,
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return kNotImplemented if the host does not implement such feature
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*/
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inline tresult isProjectState (IBStream* state)
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{
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if (!state)
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return kInvalidArgument;
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auto stream = U::cast<IStreamAttributes> (state);
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if (!stream)
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return kNotImplemented;
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if (IAttributeList* list = stream->getAttributes ())
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{
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// get the current type (project/Default..) of this state
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String128 string = {0};
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if (list->getString (PresetAttributes::kStateType, string, 128 * sizeof (TChar)) ==
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kResultTrue)
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{
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UString128 tmp (string);
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char ascii[128];
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tmp.toAscii (ascii, 128);
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if (strncmp (ascii, StateType::kProject, strlen (StateType::kProject)) == 0)
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{
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return kResultTrue;
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}
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return kResultFalse;
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}
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}
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return kNotImplemented;
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}
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/**@}*/
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//------------------------------------------------------------------------
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} // namespace Helpers
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} // namespace Vst
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} // namespace Steinberg
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