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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: 26 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_PROPERTY_H_
#define LSP_PLUG_IN_PLUG_FW_CTL_UTIL_PROPERTY_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>
namespace lsp
{
namespace ctl
{
/**
* Some property controller, simplified expression
*/
class Property: public ui::IPortListener
{
private:
Property & operator = (const Property &);
protected:
class PropResolver: public ui::PortResolver
{
protected:
Property *pProp;
public:
explicit PropResolver(Property *prop);
public:
virtual status_t on_resolved(const LSPString *name, ui::IPort *p);
virtual status_t resolve(expr::value_t *value, const char *name, size_t num_indexes, const ssize_t *indexes);
virtual status_t resolve(expr::value_t *value, const LSPString *name, size_t num_indexes, const ssize_t *indexes);
};
protected:
expr::Expression sExpr;
expr::Variables sVars;
expr::Parameters sParams;
PropResolver sResolver;
ui::IWrapper *pWrapper;
lltl::parray<ui::IPort> vDependencies;
protected:
void do_destroy();
void drop_dependencies();
status_t on_resolved(const LSPString *name, ui::IPort *p);
virtual void on_updated(ui::IPort *port);
protected:
status_t evaluate(expr::value_t *value);
status_t evaluate(size_t idx, expr::value_t *value);
bool parse(const char *expr, size_t flags = expr::Expression::FLAG_NONE);
bool parse(const LSPString *expr, size_t flags = expr::Expression::FLAG_NONE);
bool parse(io::IInSequence *expr, size_t flags = expr::Expression::FLAG_NONE);
public:
explicit Property();
virtual ~Property();
void init(ui::IWrapper *wrapper);
virtual void destroy();
public:
virtual void notify(ui::IPort *port);
public:
inline bool valid() const { return sExpr.valid(); };
inline bool depends(ui::IPort *port) const { return vDependencies.contains(port); }
};
}
}
#endif /* LSP_PLUG_IN_PLUG_FW_CTL_UTIL_PROPERTY_H_ */
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