/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GFX_QUAD_H

#define GFX_QUAD_H

#include "gfxTypes.h"

#include "gfxRect.h"

#include "gfxLineSegment.h"

#include <algorithm>

struct gfxQuad {

    gfxQuad(const gfxPoint& aOne, const gfxPoint& aTwo, const gfxPoint& aThree, const gfxPoint& aFour)

    {

        mPoints[0] = aOne;

        mPoints[1] = aTwo;

        mPoints[2] = aThree;

        mPoints[3] = aFour;

    }

    bool Contains(const gfxPoint& aPoint)

    {

        return (gfxLineSegment(mPoints[0], mPoints[1]).PointsOnSameSide(aPoint, mPoints[2]) &&

                gfxLineSegment(mPoints[1], mPoints[2]).PointsOnSameSide(aPoint, mPoints[3]) &&

                gfxLineSegment(mPoints[2], mPoints[3]).PointsOnSameSide(aPoint, mPoints[0]) &&

                gfxLineSegment(mPoints[3], mPoints[0]).PointsOnSameSide(aPoint, mPoints[1]));

    }

    gfxRect GetBounds()

    {

        gfxFloat min_x, max_x;

        gfxFloat min_y, max_y;

        min_x = max_x = mPoints[0].x;

        min_y = max_y = mPoints[0].y;

        for (int i=1; i<4; i++) {

          min_x = std::min(mPoints[i].x, min_x);

          max_x = std::max(mPoints[i].x, max_x);

          min_y = std::min(mPoints[i].y, min_y);

          max_y = std::max(mPoints[i].y, max_y);

        }

        return gfxRect(min_x, min_y, max_x - min_x, max_y - min_y);

    }

    gfxPoint mPoints[4];

};

#endif /* GFX_QUAD_H */