Initial release

engine/vendor/vst3sdk/public.sdk/source/vst/hosting/hostclasses.h

@@ -0,0 +1,100 @@
+//-----------------------------------------------------------------------------
+// Project     : VST SDK
+//
+// Category    : Helpers
+// Filename    : public.sdk/source/vst/hosting/hostclasses.h
+// Created by  : Steinberg, 03/05/2008.
+// Description : VST 3 hostclasses, example impl. for IHostApplication, IAttributeList and IMessage
+//
+//-----------------------------------------------------------------------------
+// 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/pluginterfacesupport.h"
+#include "pluginterfaces/vst/ivsthostapplication.h"
+#include <map>
+#include <memory>
+#include <string>
+
+namespace Steinberg {
+namespace Vst {
+
+//------------------------------------------------------------------------
+/** Implementation's example of IHostApplication.
+\ingroup hostingBase
+*/
+class HostApplication : public IHostApplication
+{
+public:
+	HostApplication ();
+	virtual ~HostApplication () noexcept {FUNKNOWN_DTOR}
+
+	//--- IHostApplication ---------------
+	tresult PLUGIN_API getName (String128 name) override;
+	tresult PLUGIN_API createInstance (TUID cid, TUID _iid, void** obj) override;
+
+	DECLARE_FUNKNOWN_METHODS
+
+	PlugInterfaceSupport* getPlugInterfaceSupport () const { return mPlugInterfaceSupport; }
+
+private:
+	IPtr<PlugInterfaceSupport> mPlugInterfaceSupport;
+};
+
+//------------------------------------------------------------------------
+/** Example, ready to use implementation of IAttributeList.
+\ingroup hostingBase
+*/
+class HostAttributeList final : public IAttributeList
+{
+public:
+	/** make a new attribute list instance */
+	static IPtr<IAttributeList> make ();
+
+	tresult PLUGIN_API setInt (AttrID aid, int64 value) override;
+	tresult PLUGIN_API getInt (AttrID aid, int64& value) override;
+	tresult PLUGIN_API setFloat (AttrID aid, double value) override;
+	tresult PLUGIN_API getFloat (AttrID aid, double& value) override;
+	tresult PLUGIN_API setString (AttrID aid, const TChar* string) override;
+	tresult PLUGIN_API getString (AttrID aid, TChar* string, uint32 sizeInBytes) override;
+	tresult PLUGIN_API setBinary (AttrID aid, const void* data, uint32 sizeInBytes) override;
+	tresult PLUGIN_API getBinary (AttrID aid, const void*& data, uint32& sizeInBytes) override;
+
+	virtual ~HostAttributeList () noexcept;
+	DECLARE_FUNKNOWN_METHODS
+private:
+	HostAttributeList ();
+
+	struct Attribute;
+	std::map<std::string, Attribute> list;
+};
+
+//------------------------------------------------------------------------
+/** Example implementation of IMessage.
+\ingroup hostingBase
+*/
+class HostMessage final : public IMessage
+{
+public:
+	HostMessage ();
+	virtual ~HostMessage () noexcept;
+
+	const char* PLUGIN_API getMessageID () override;
+	void PLUGIN_API setMessageID (const char* messageID) override;
+	IAttributeList* PLUGIN_API getAttributes () override;
+
+	DECLARE_FUNKNOWN_METHODS
+private:
+	char* messageId {nullptr};
+	IPtr<IAttributeList> attributeList;
+};
+
+//------------------------------------------------------------------------
+} // namespace Vst
+} // namespace Steinberg