/*

 * Copyright 2019 Google Inc.

 *

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

 */

#ifndef SkSGTransformPriv_DEFINED

#define SkSGTransformPriv_DEFINED

#include "modules/sksg/include/SkSGTransform.h"

namespace sksg {

// Helper for accessing implementation-private Transform methods.

class TransformPriv final {

public:

    static bool Is44(const sk_sp<Transform>&t) { return t->is44(); }

    template <typename T, typename = std::enable_if<std::is_same<T, SkMatrix>::value ||

                                                    std::is_same<T, SkM44   >::value >>

    static T As(const sk_sp<Transform>&);

private:

    TransformPriv() = delete;

};

template <>

inline SkMatrix TransformPriv::As<SkMatrix>(const sk_sp<Transform>& t) {

    return t->asMatrix();

}

template <>

inline SkM44 TransformPriv::As<SkM44>(const sk_sp<Transform>& t) {

    return t->asM44();

}

} // namespace sksg

#endif // SkSGTransformPriv_DEFINED