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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_COLLECTION_WIDGETPTR_H_
#define LSP_PLUG_IN_TK_PROP_COLLECTION_WIDGETPTR_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
/**
* Pointer to the widget
*/
template <class widget_t>
class WidgetPtr: public Ptr
{
protected:
inline WidgetPtr<widget_t> *ccast() const { return const_cast< WidgetPtr<widget_t> >(this); }
inline widget_t *wcast(void *w) { return (w != NULL) ? static_cast<widget_t*>(static_cast<Widget *>(w)) : NULL; }
static inline void *vcast(Widget *w) { return w; }
protected:
const w_class_t *pMeta;
protected:
explicit WidgetPtr(prop::Listener *listener = NULL): Ptr(listener)
{
pMeta = &widget_t::metadata;
}
WidgetPtr(const WidgetPtr<widget_t> &) = delete;
WidgetPtr(WidgetPtr<widget_t> &&) = delete;
virtual ~WidgetPtr() override
{
pMeta = NULL;
}
WidgetPtr<widget_t> & operator = (const WidgetPtr<widget_t> &) = delete;
WidgetPtr<widget_t> & operator = (WidgetPtr<widget_t> &&) = delete;
public:
inline widget_t *get() { return wcast(pCurr); }
inline const widget_t *get() const { return ccast()->get(); }
inline widget_t *get_default() { return wcast(pDfl); }
inline const widget_t *get_default() const { return ccast()->get_default(); }
inline widget_t *set(widget_t *w) { return ((w != NULL) && (w->instance_of(pMeta))) ? wcast(Ptr::set(vcast(w))) : wcast(Ptr::set(NULL)); }
inline widget_t *set_default() { return wcast(Ptr::set_default()); }
};
namespace prop
{
template <class widget_t>
class WidgetPtr: public tk::WidgetPtr<widget_t>
{
public:
explicit WidgetPtr(prop::Listener *listener = NULL): tk::WidgetPtr<widget_t>(listener) {}
WidgetPtr(const WidgetPtr<widget_t> &) = delete;
WidgetPtr(WidgetPtr<widget_t> &&) = delete;
WidgetPtr<widget_t> & operator = (const WidgetPtr<widget_t> &) = delete;
WidgetPtr<widget_t> & operator = (WidgetPtr<widget_t> &&) = delete;
public:
inline void bind(widget_t *dfl)
{
this->pDfl = tk::WidgetPtr<widget_t>::vcast(dfl);
this->pCurr = this->pDfl;
}
};
} /* namespace prop */
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_PROP_COLLECTION_WIDGETPTR_H_ */
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