HUSD_LayerOffset.h

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/*
 * Copyright 2019 Side Effects Software Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#ifndef __HUSD_LayerOffset_h__
#define __HUSD_LayerOffset_h__

#include "HUSD_API.h"
#include <SYS/SYS_Types.h>

class HUSD_API HUSD_LayerOffset
{
public:
    explicit             HUSD_LayerOffset(
                                 fpreal64 offset = 0.0,
                                 fpreal64 scale = 1.0)
                            : myOffset(offset),
                              myScale(scale)
                         { }

    fpreal64             offset() const
                         { return myOffset; }
    void                 setOffset(fpreal64 offset)
                         { myOffset = offset; }
    fpreal64             scale() const
                         { return myScale; }
    void                 setScale(fpreal64 scale)
                         { myScale = scale; }

    bool                 operator==(const HUSD_LayerOffset &other) const;
    bool                 isIdentity() const;
    bool                 isValid() const;
    HUSD_LayerOffset     inverse() const;

private:
    fpreal64             myOffset;
    fpreal64             myScale;
};

#endif