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/*
* Copyright (C) 2025 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2025 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 15 июн. 2020 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_TK_PROP_BASE_PTR_H_
#define LSP_PLUG_IN_TK_PROP_BASE_PTR_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
class Ptr: public Property
{
protected:
void *pCurr;
void *pDfl;
protected:
explicit Ptr(prop::Listener *listener = NULL);
Ptr(const Ptr &) = delete;
Ptr(Ptr &&) = delete;
virtual ~Ptr() override;
Ptr & operator = (const Ptr &) = delete;
Ptr & operator = (Ptr &&) = delete;
protected:
void *set(void *ptr);
void *set_default();
public:
inline bool is_default() const { return pCurr == pDfl; }
inline bool is_set() const { return pCurr != NULL; }
};
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_PROP_BASE_PTR_H_ */
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