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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugin-fw
* Created on: 11 апр. 2021 г.
*
* lsp-plugin-fw 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-plugin-fw 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-plugin-fw. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_PLUG_FW_CTL_UTIL_EXPRESSION_H_
#define LSP_PLUG_IN_PLUG_FW_CTL_UTIL_EXPRESSION_H_
#include <lsp-plug.in/plug-fw/version.h>
#ifndef LSP_PLUG_IN_PLUG_FW_CTL_IMPL_
#error "Use #include <lsp-plug.in/plug-fw/ctl.h>"
#endif /* LSP_PLUG_IN_PLUG_FW_CTL_IMPL_ */
#include <lsp-plug.in/lltl/parray.h>
#include <lsp-plug.in/expr/Expression.h>
#include <lsp-plug.in/expr/Variables.h>
#include <lsp-plug.in/runtime/LSPString.h>
#include <lsp-plug.in/plug-fw/ui.h>
#include <lsp-plug.in/plug-fw/ctl/util/Property.h>
namespace lsp
{
namespace ctl
{
enum
{
EXPR_FLAGS_MULTIPLE = expr::Expression::FLAG_MULTIPLE,
EXPR_FLAGS_STRING = expr::Expression::FLAG_STRING,
EXPR_FLAGS_NONE = expr::Expression::FLAG_NONE
};
/**
* Computed expression
*/
class Expression: public ctl::Property
{
private:
Expression & operator = (const Expression &);
protected:
ui::IPortListener *pListener;
protected:
virtual void on_updated(ui::IPort *port);
public:
explicit Expression();
void init(ui::IWrapper *wrapper, ui::IPortListener *listener);
public:
float evaluate_float(float dfl = 0.0f);
ssize_t evaluate_int(ssize_t dfl = 0);
bool evaluate_bool(bool dfl = false);
float evaluate();
float evaluate(size_t idx);
inline status_t evaluate(expr::value_t *value) { return Property::evaluate(value); }
inline status_t evaluate(size_t idx, expr::value_t *value) { return Property::evaluate(idx, value); }
inline size_t results() { return sExpr.results(); }
float result(size_t idx);
inline bool parse(const char *expr, size_t flags = expr::Expression::FLAG_NONE) { return Property::parse(expr, flags); }
inline bool parse(const LSPString *expr, size_t flags = expr::Expression::FLAG_NONE) { return Property::parse(expr, flags); }
inline bool parse(io::IInSequence *expr, size_t flags = expr::Expression::FLAG_NONE) { return Property::parse(expr, flags); }
inline expr::Parameters *params() { return &sParams; };
};
}
}
#endif /* LSP_PLUG_IN_PLUG_FW_CTL_UTIL_EXPRESSION_H_ */
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