assimp/contrib/openddlparser/include/openddlparser/DDLNode.h

/*-----------------------------------------------------------------------------------------------
The MIT License (MIT)

Copyright (c) 2014-2015 Kim Kulling

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this software and associated documentation files (the "Software"), to deal in
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-----------------------------------------------------------------------------------------------*/
#pragma once

#include <openddlparser/OpenDDLCommon.h>

#include <vector>
#include <string>

BEGIN_ODDLPARSER_NS

// Forward declarations
class IOStreamBase;
class Value;
class OpenDDLParser;

struct Identifier;
struct Reference;
struct Property;
struct DataArrayList;

///
/// @ingroup    OpenDDLParser
///	@brief      This class represents one single instance in the object tree of the parsed OpenDDL-file.
///
/// A DDLNode represents one leaf in the OpenDDL-node tree. It can have one parent node and multiple children.
/// You can assign special properties to a single DDLNode instance.
///	A node instance can store values via a linked list. You can get the first value from the DDLNode.
/// A node can store data-array-lists and references as well.
///
class DLL_ODDLPARSER_EXPORT DDLNode {
public:
    friend class OpenDDLParser;

    /// @brief  The child-node-list type.
    typedef std::vector<DDLNode*> DllNodeList;

    /// @brief  The child-node-list iterator.
    typedef std::vector<DDLNode*>::iterator DDLNodeIt;

public:
    ///	@brief  The class destructor.
    ~DDLNode();

    ///	@brief  Will attach a parent node instance, an older one will be released.
    /// @param  parent      [in] The parent node instance.
    void attachParent( DDLNode *parent );

    /// @brief  Will try to detach a parent node instance, if there is any.
    void detachParent();

    ///	@brief  Returns the assigned parent node instance, will return ddl_nullptr id no parent is assigned.
    /// @return The parent node instance.
    DDLNode *getParent() const;

    ///	@brief  Returns the child node list.
    /// @return The list of child nodes.
    const DllNodeList &getChildNodeList() const;

    /// Set the type of the DDLNode instance.
    /// @param  type    [in] The type.
    void setType( const std::string &type );

    /// @brief  Returns the type of the DDLNode instance.
    /// @return The type of the DDLNode instance.
    const std::string &getType() const;

    /// Set the name of the DDLNode instance.
    /// @param  name        [in] The name.
    void setName( const std::string &name );

    /// @brief  Returns the name of the DDLNode instance.
    /// @return The name of the DDLNode instance.
    const std::string &getName() const;

    /// @brief  Set a new property set.
    ///	@param  prop        [in] The first element of the property set.
    void setProperties( Property *prop );

    ///	@brief  Returns the first element of the assigned property set.
    ///	@return The first property of the assigned property set.
    Property *getProperties() const;

    ///	@brief  Looks for a given property.
    /// @param  name        [in] The name for the property to look for.
    /// @return true, if a corresponding property is assigned to the node, false if not.
    bool hasProperty( const std::string &name );

    ///	@brief  Will return true, if any properties are assigned to the node instance.
    ///	@return True, if properties are assigned.
    bool hasProperties() const;

    ///	@brief  Search for a given property and returns it. Will return ddl_nullptr if no property was found.
    /// @param  name        [in] The name for the property to look for.
    /// @return The property or ddl_nullptr if no property was found.
    Property *findPropertyByName( const std::string &name );
    
    /// @brief  Set a new value set.
    /// @param  val         [in] The first value instance of the value set.
    void setValue( Value *val );

    ///	@brief  Returns the first element of the assigned value set.
    ///	@return The first property of the assigned value set.
    Value *getValue() const;

    /// @brief  Set a new DataArrayList.
    /// @param  dtArrayList [in] The DataArrayList instance.
    void setDataArrayList( DataArrayList *dtArrayList );

    ///	@brief  Returns the DataArrayList.
    ///	@return The DataArrayList.
    DataArrayList *getDataArrayList() const;

    /// @brief  Set a new Reference set.
    /// @param  refs        [in] The first value instance of the Reference set.
    void setReferences( Reference  *refs );

    ///	@brief  Returns the first element of the assigned Reference set.
    ///	@return The first property of the assigned Reference set.
    Reference *getReferences() const;

    /// @brief  Will dump the node into the stream.
    /// @param  stream      [in] The stream to write to.
    void dump(IOStreamBase &stream);

    ///	@brief  The creation method.
    /// @param  type        [in] The DDLNode type.
    ///	@param  name        [in] The name for the new DDLNode instance.
    /// @param  parent      [in] The parent node instance or ddl_nullptr if no parent node is there.
    /// @return The new created node instance.
    static DDLNode *create( const std::string &type, const std::string &name, DDLNode *parent = ddl_nullptr );

private:
    DDLNode( const std::string &type, const std::string &name, size_t idx, DDLNode *parent = ddl_nullptr );
    DDLNode();
    DDLNode( const DDLNode & ) ddl_no_copy;
    DDLNode &operator = ( const DDLNode & ) ddl_no_copy;
    static void releaseNodes();

private:
    std::string m_type;
    std::string m_name;
    DDLNode *m_parent;
    std::vector<DDLNode*> m_children;
    Property *m_properties;
    Value *m_value;
    DataArrayList *m_dtArrayList;
    Reference *m_references;
    size_t m_idx;
    static DllNodeList s_allocatedNodes;
};

END_ODDLPARSER_NS