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2026-08-16 18:24:52 +07:00

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C++

//-----------------------------------------------------------------------------
// Project : VST SDK
//
// Category : Helpers
// Filename : public.sdk/source/vst/hosting/plugprovider.h
// Created by : Steinberg, 04/2005
// Description : VST 3 Plug-in Provider class
//
//-----------------------------------------------------------------------------
// This file is part of a Steinberg SDK. It is subject to the license terms
// in the LICENSE file found in the top-level directory of this distribution
// and at www.steinberg.net/sdklicenses.
// No part of the SDK, including this file, may be copied, modified, propagated,
// or distributed except according to the terms contained in the LICENSE file.
//-----------------------------------------------------------------------------
#pragma once
#include "public.sdk/source/vst/hosting/module.h"
#include "pluginterfaces/vst/ivsttestplugprovider.h"
#include "pluginterfaces/base/funknownimpl.h"
#include <ostream>
namespace Steinberg {
namespace Vst {
class IComponent;
class IEditController;
class ConnectionProxy;
//------------------------------------------------------------------------
/** Helper for creating and initializing component.
\ingroup Validator */
//------------------------------------------------------------------------
class PlugProvider
: public U::Implements<U::Directly<ITestPlugProvider2>, U::Indirectly<ITestPlugProvider>>
{
public:
using ClassInfo = VST3::Hosting::ClassInfo;
using PluginFactory = VST3::Hosting::PluginFactory;
//--- ---------------------------------------------------------------------
PlugProvider (const PluginFactory& factory, ClassInfo info, bool plugIsGlobal = true);
~PlugProvider () override;
bool initialize ();
IPtr<IComponent> getComponentPtr () const { return component; }
IPtr<IEditController> getControllerPtr () const { return controller; }
const ClassInfo& getClassInfo () const { return classInfo; }
//--- from ITestPlugProvider ------------------
IComponent* PLUGIN_API getComponent () SMTG_OVERRIDE;
IEditController* PLUGIN_API getController () SMTG_OVERRIDE;
tresult PLUGIN_API releasePlugIn (IComponent* component, IEditController* controller) SMTG_OVERRIDE;
tresult PLUGIN_API getSubCategories (IStringResult& result) const SMTG_OVERRIDE
{
result.setText (classInfo.subCategoriesString ().data ());
return kResultTrue;
}
tresult PLUGIN_API getComponentUID (FUID& uid) const SMTG_OVERRIDE;
//--- from ITestPlugProvider2 ------------------
IPluginFactory* PLUGIN_API getPluginFactory () SMTG_OVERRIDE;
static void setErrorStream (std::ostream* stream);
//------------------------------------------------------------------------
protected:
bool setupPlugin (FUnknown* hostContext);
bool connectComponents ();
bool disconnectComponents ();
void terminatePlugin ();
template<typename Proc>
void printError (Proc p) const;
PluginFactory factory;
IPtr<IComponent> component;
IPtr<IEditController> controller;
ClassInfo classInfo;
IPtr<ConnectionProxy> componentCP;
IPtr<ConnectionProxy> controllerCP;
bool plugIsGlobal;
};
//------------------------------------------------------------------------
class PluginContextFactory
{
public:
static PluginContextFactory& instance ()
{
static PluginContextFactory factory;
return factory;
}
void setPluginContext (FUnknown* obj) { context = obj; }
FUnknown* getPluginContext () const { return context; }
private:
FUnknown* context;
};
//------------------------------------------------------------------------
} // Vst
} // Steinberg