/*
 * Copyright 2006-2007, 2023, Haiku.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Stephan Aßmus <superstippi@gmx.de>
 *              Zardshard
 */
#ifndef PATH_TRANSFORMER_H
#define PATH_TRANSFORMER_H


#include "IconBuild.h"
#include "VertexSource.h"


_BEGIN_ICON_NAMESPACE


/*! A transformation to a VertexSource.
        It can add points, move them around, turn them to curves, etc.
*/
class PathTransformer : public VertexSource
{
public:
                                                                PathTransformer(VertexSource& source)
                                                                        : fSource(&source) {}
        virtual                                         ~PathTransformer() {}

        // PathTransformer
        virtual void                            rewind(unsigned path_id)
                                                                        { fSource->rewind(path_id); }
    virtual     unsigned                        vertex(double* x, double* y)
                                                                        { return fSource->vertex(x, y); }

        virtual void                            SetSource(VertexSource& source)
                                                                        { fSource = &source; }

        virtual bool                            WantsOpenPaths() const
                                                                        { return fSource->WantsOpenPaths(); }
        virtual double                          ApproximationScale() const
                                                                        { return fSource->ApproximationScale(); }

protected:
                        VertexSource*           fSource;
};


_END_ICON_NAMESPACE

#endif  // PATH_TRANSFORMER_H