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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: 9 окт. 2019 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 UI_TK_SYS_LSPFLOAT_H_
#define UI_TK_SYS_LSPFLOAT_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
/**
* Floating-point property interface
*/
class Float: public SimpleProperty
{
protected:
float fValue;
float_transform_t pTransform;
mutable void *pTransformArg;
protected:
virtual void commit(atom_t property) override;
virtual void push() override;
protected:
float transform(float v) const;
protected:
explicit Float(prop::Listener *listener = NULL);
Float(const Float &) = delete;
Float(Float &&) = delete;
virtual ~Float() override;
Float & operator = (const Float &) = delete;
Float & operator = (Float &&) = delete;
public:
inline void set_transform(float_transform_t func, void *arg = NULL) { pTransform = func; pTransformArg = arg; }
inline void clear_transform() { set_transform(NULL, NULL); }
public:
/**
* Get value of the float property
* @return value of the float property
*/
inline float get() const { return fValue; }
/**
* Set value of the float property
* @param v value of the float property
* @return
*/
float set(float v);
/**
* Swap contents
* @param dst destination property to perform swap
*/
void swap(Float *dst);
inline float add(float value) { return set(fValue + value); }
inline float sub(float value) { return set(fValue - value); }
};
namespace prop
{
/**
* Floating-point property implementation
*/
class Float: public tk::Float
{
public:
explicit inline Float(prop::Listener *listener = NULL): tk::Float(listener) {};
Float(const Float &) = delete;
Float(Float &&) = delete;
Float & operator = (const Float &) = delete;
Float & operator = (Float &&) = delete;
public:
/**
* Bind property with specified name to the style of linked widget
*/
inline status_t bind(atom_t property, Style *style) { return SimpleProperty::bind(property, style, PT_FLOAT, &sListener); }
inline status_t bind(const char *property, Style *style) { return SimpleProperty::bind(property, style, PT_FLOAT, &sListener); }
inline status_t bind(const LSPString *property, Style *style) { return SimpleProperty::bind(property, style, PT_FLOAT, &sListener); }
/**
* Unbind property
*/
inline status_t unbind() { return SimpleProperty::unbind(&sListener); };
/**
* Change value without notification of any listener
* @param value value to set
*/
inline void commit_value(float value) { fValue = value; }
inline void listener(prop::Listener *listener) { pListener = listener; }
};
} /* namespace prop */
} /* namespace tk */
} /* namespace lsp */
#endif /* UI_TK_SYS_LSPFLOATPROPERTY_H_ */
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