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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: 10 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 PRIVATE_UI_XML_NODEFACTORY_H_
#define PRIVATE_UI_XML_NODEFACTORY_H_
#include <lsp-plug.in/plug-fw/ui.h>
#include <private/ui/xml/Node.h>
namespace lsp
{
namespace ui
{
namespace xml
{
/**
* XML node factory
*/
class NodeFactory
{
private:
NodeFactory &operator = (const NodeFactory &);
NodeFactory(const NodeFactory &);
private:
static NodeFactory *pRoot;
NodeFactory *pNext;
public:
explicit NodeFactory();
virtual ~NodeFactory();
public:
/**
* Get the next factory in the chain
* @return next factory in the factory chain or NULL if there is no more factories
*/
inline NodeFactory *next() { return pNext; }
/**
* Get the first node factory in the chain
* @return the first node factory in the chain
*/
inline static NodeFactory *root() { return pRoot; }
public:
/**
* Create element
*
* @param context UI context
* @param parent the pointer to parent node
* @param child the pointer to store the pointer to created node
* @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(Node **child, UIContext *context, Node *parent, const LSPString *name);
};
#define NODE_FACTORY_IMPL_START(fname) \
class fname ## Factory: public ::lsp::ui::xml::NodeFactory \
{ \
public: \
explicit fname ## Factory() {} \
virtual ~fname ## Factory() {} \
\
public: \
virtual status_t create(Node **child, UIContext *context, Node *parent, const LSPString *name) \
{
#define NODE_FACTORY_IMPL_END(fname) \
} \
}; \
\
static fname ## Factory fname ## FactoryInstance; /* Variable */
}
}
}
#endif /* PRIVATE_UI_XML_NODEFACTORY_H_ */
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