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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_FACTORY_H_
#define LSP_PLUG_IN_PLUG_FW_CTL_FACTORY_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/plug-fw/version.h>
#include <lsp-plug.in/plug-fw/ctl/Widget.h>
namespace lsp
{
namespace ui
{
class UIContext;
}
namespace ctl
{
/**
* XML node factory
*/
class Factory
{
private:
static Factory *pRoot;
Factory *pNext;
public:
explicit Factory();
virtual ~Factory();
public:
/**
* Get the next factory in the chain
* @return next factory in the factory chain or NULL if there is no more factories
*/
inline Factory *next() { return pNext; }
/**
* Get the first node factory in the chain
* @return the first node factory in the chain
*/
inline static Factory *root() { return pRoot; }
public:
/**
* Create element
*
* @param ctl the pointer to store the pointer to created controller
* @param name name of the node
* @return status of operation, STATUS_NOT_FOUND if there is no supported node for this factory
*/
virtual status_t create(Widget **ctl, ui::UIContext *context, const LSPString *name);
};
#define CTL_FACTORY_IMPL_START(fname) \
class fname ## Factory: public ::lsp::ctl::Factory \
{ \
public: \
explicit fname ## Factory() {} \
virtual ~fname ## Factory() {} \
\
public: \
virtual status_t create(Widget **ctl, ui::UIContext *context, const LSPString *name) \
{
#define CTL_FACTORY_IMPL_END(fname) \
} \
}; \
\
static fname ## Factory fname ## FactoryInstance; /* Variable */
}
}
#endif /* LSP_PLUG_IN_PLUG_FW_CTL_FACTORY_H_ */
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