valuenode_bline.h

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/* === S Y N F I G ========================================================= */
/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_VALUENODE_BLINE_H
#define __SYNFIG_VALUENODE_BLINE_H

/* === H E A D E R S ======================================================= */

#include <vector>
#include <list>

#include <synfig/valuenode.h>
#include <synfig/time.h>
#include <synfig/uniqueid.h>
#include <synfig/blinepoint.h>
#include "valuenode_dynamiclist.h"

/* === M A C R O S ========================================================= */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace synfig {


ValueBase convert_bline_to_segment_list(const ValueBase &bline);

ValueBase convert_bline_to_width_list(const ValueBase &bline);

Real find_closest_point(const ValueBase &bline, const Point &pos, Real &radius, bool loop, Point *out_point = 0);

Real std_to_hom(const ValueBase &bline, Real pos, bool index_loop, bool bline_loop);

Real hom_to_std(const ValueBase &bline, Real pos, bool index_loop, bool bline_loop);

Real bline_length(const ValueBase &bline, bool bline_loop, std::vector<Real> *lengths);


class ValueNode_BLine : public ValueNode_DynamicList
{
public:

    typedef etl::handle<ValueNode_BLine> Handle;
    typedef etl::handle<const ValueNode_BLine> ConstHandle;


    ValueNode_BLine(etl::loose_handle<Canvas> canvas = 0);

public:

    virtual ValueBase operator()(Time t)const;

    virtual ~ValueNode_BLine();

    virtual String link_local_name(int i)const;

    virtual String get_name()const;
    virtual String get_local_name()const;

    virtual ListEntry create_list_entry(int index, Time time=0, Real origin=0.5);

protected:

    LinkableValueNode* create_new()const;

public:
    //using synfig::LinkableValueNode::set_link_vfunc;
    static bool check_type(Type &type);
    static ValueNode_BLine* create(const ValueBase &x=type_list, etl::loose_handle<Canvas> canvas = 0);

    BLinePoint get_blinepoint(std::vector<ListEntry>::const_iterator current, Time t)const;
    virtual Vocab get_children_vocab_vfunc()const;
#ifdef _DEBUG
    virtual void ref()const;
    virtual bool unref()const;
#endif
}; // END of class ValueNode_BLine

typedef ValueNode_BLine::ListEntry::ActivepointList ActivepointList;

}; // END of namespace synfig

/* === E N D =============================================================== */

#endif