68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
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#pragma once
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#include "node.h"
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#include <vector>
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#include "lib_begin.h"
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namespace cgv {
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namespace base {
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class CGV_API group;
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/// ref counted pointer to a node
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typedef data::ref_ptr<group,true> group_ptr;
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/** The group class is a node with children. */
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class CGV_API group : public node
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{
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protected:
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/// declare group_ptr to be a friend class
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friend class data::ref_ptr<group,true>;
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/// store a list of children
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std::vector<base_ptr> children;
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/// check if the base class is a node and set the parent of the node
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void link(base_ptr b);
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/// check if the base class is a node and clear the parent of the node
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void unlink(base_ptr b);
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public:
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/// construct from name
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group(const std::string& name = "");
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/// return the number of children
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unsigned int get_nr_children() const;
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/// return the i-th child
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base_ptr get_child(unsigned int i) const;
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/// append child and return index of appended child
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virtual unsigned int append_child(base_ptr child);
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/// remove all elements of the vector that point to child, return the number of removed children
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virtual unsigned int remove_child(base_ptr child);
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/// remove all children
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virtual void remove_all_children();
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/// insert a child at the given position
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virtual void insert_child(unsigned int i, base_ptr child);
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/// cast upward to group
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data::ref_ptr<group,true> get_group();
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/// overload to return the type name of this object
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std::string get_type_name() const;
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};
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template <>
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struct cast_helper<group>
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{
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inline static data::ref_ptr<group,true> cast(base* b)
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{
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return b->get_group();
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}
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};
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#if _MSC_VER >= 1400
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CGV_TEMPLATE template class CGV_API data::ref_ptr<group>;
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CGV_TEMPLATE template class CGV_API std::vector<base_ptr>;
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#endif
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}
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}
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#include <cgv/config/lib_end.h>
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