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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: 7 мая 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_PROPERTY_H_
#define LSP_PLUG_IN_TK_PROP_BASE_PROPERTY_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
#include <lsp-plug.in/common/variadic.h>
namespace lsp
{
namespace tk
{
namespace prop
{
class Listener;
}
/**
* Floating-point property interface
*/
class Property
{
protected:
class Listener: public IStyleListener
{
private:
Property *pProperty;
ssize_t nLocks;
public:
explicit Listener(Property *p);
public:
virtual void notify(atom_t property);
inline ssize_t lock() { return ++nLocks; }
inline ssize_t unlock() { return --nLocks; }
};
protected:
Style *pStyle; // Bound style
prop::Listener *pListener; // Nested client listener
Listener sListener; // Listener
protected:
void sync(bool notify = true); // Save property to style
virtual void push(); // Push implementation-specific data to style
virtual void commit(atom_t property); // Commit changes from style
protected:
explicit Property(prop::Listener *listener = NULL);
public:
Property(const Property &) = delete;
Property(Property &&) = delete;
virtual ~Property();
Property & operator = (const Property &) = delete;
Property & operator = (Property &&) = delete;
protected:
static const prop::enum_t *find_enum(const LSPString *s, const prop::enum_t *xenum);
static const prop::enum_t *find_enum(const char *s, const prop::enum_t *xenum);
static const prop::enum_t *find_enum(ssize_t value, const prop::enum_t *xenum);
static size_t parse_bools(bool *dst, size_t max, const LSPString *s);
static size_t parse_ints(ssize_t *dst, size_t max, const LSPString *s);
static size_t parse_floats(float *dst, size_t max, const LSPString *s);
static size_t parse_enums(ssize_t *dst, size_t max, const LSPString *s, const prop::enum_t *xenum);
static ssize_t parse_bit_enums(size_t *dst, const LSPString *s, const prop::enum_t *xenum);
static size_t parse_unique_enums(ssize_t *dst, size_t max, const LSPString *s, const prop::enum_t *xenum);
static size_t parse_enums(lltl::darray<ssize_t> *dst, const LSPString *s, const prop::enum_t *xenum);
static size_t parse_unique_enums(lltl::darray<ssize_t> *dst, const LSPString *s, const prop::enum_t *xenum);
static bool fmt_bit_enums(LSPString *dst, const prop::enum_t *xe, size_t v);
static float limit(float value, float min, float max);
static float normalized(float value, float min, float max);
static bool matches(float value, float min, float max);
constexpr inline bool one_of() const { return false; }
public:
/**
* Override property for the style
*/
virtual void override(); // Override property
/**
* Check that property matches another property
* @param prop pointer to property to check
* @return true if property matches
*/
inline bool is(const Property *prop) const { return prop == this; }
/**
* Check that property matches another property
* @param prop reference to property to check
* @return true if property matches
*/
inline bool is(const Property &prop) const { return &prop == this; }
/**
* Check that property matches one of the
* @param prop reference to property to check
* @return true if property matches one of the passed properties in the list
*/
template <class... T>
inline bool one_of(const Property &prop, T && ... args) const
{
if (is(prop))
return true;
return one_of(lsp::forward<T>(args)...);
}
};
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_PROP_BASE_PROPERTY_H_ */
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