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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: 6 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_MULTI_STEPFLOAT_H_
#define LSP_PLUG_IN_TK_PROP_MULTI_STEPFLOAT_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
/**
* Floating-point value change step with accelerators:
* step - the change step for regular change
* accel - acceleracion multiplier to the step
* decel - deceleration multiplier to the step
*/
class StepFloat: public MultiProperty
{
protected:
enum property_t
{
P_VALUE,
P_STEP,
P_ACCEL,
P_DECEL,
P_COUNT
};
protected:
static const prop::desc_t DESC[];
protected:
atom_t vAtoms[P_COUNT]; // Atom bindings
float fStep;
float fAccel;
float fDecel;
protected:
virtual void push() override;
virtual void commit(atom_t property) override;
float climited(float v) const;
float change(float k, float step);
protected:
explicit StepFloat(prop::Listener *listener = NULL);
StepFloat(const StepFloat &) = delete;
StepFloat(StepFloat &&) = delete;
virtual ~StepFloat() override;
StepFloat & operator = (const StepFloat &) = delete;
StepFloat & operator = (StepFloat &&) = delete;
public:
inline float get() const { return fStep; }
inline float get_abs() const { return (fStep >= 0.0f) ? fStep : -fStep; }
inline float accel() const { return fAccel; }
inline float decel() const { return fDecel; }
inline float step() const { return fStep; }
inline float step_accel() const { return fStep * fAccel; }
inline float step_decel() const { return fStep * fDecel; }
float get(bool accel, bool decel = false) const;
float set(float v);
void set(float v, float accel, float decel);
float set_accel(float v);
float set_decel(float v);
inline void set_step(float v, float accel, float decel) { set(v, accel / v, decel / v); }
float set_step_accel(float v) { return set_accel(v / fStep); }
float set_step_decel(float v) { return set_decel(v / fStep); }
inline float set_step(float v) { return set(v); }
};
namespace prop
{
/**
* StepFloat property implementation
*/
class StepFloat: public tk::StepFloat
{
public:
explicit StepFloat(prop::Listener *listener = NULL): tk::StepFloat(listener) {};
StepFloat(const StepFloat &) = delete;
StepFloat(StepFloat &&) = delete;
StepFloat & operator = (const StepFloat &) = delete;
StepFloat & operator = (StepFloat &&) = delete;
public:
/**
* Bind property with specified name to the style of linked widget
*/
inline status_t bind(atom_t property, Style *style) { return tk::StepFloat::bind(property, style, vAtoms, DESC, &sListener); }
inline status_t bind(const char *property, Style *style) { return tk::StepFloat::bind(property, style, vAtoms, DESC, &sListener); }
inline status_t bind(const LSPString *property, Style *style) { return tk::StepFloat::bind(property, style, vAtoms, DESC, &sListener); }
/**
* Unbind property
*/
inline status_t unbind() { return tk::StepFloat::unbind(vAtoms, DESC, &sListener); };
};
} /* namespace prop */
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_PROP_MULTI_STEPFLOAT_H_ */
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