1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxQuad.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,51 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_QUAD_H
1.10 +#define GFX_QUAD_H
1.11 +
1.12 +#include "gfxTypes.h"
1.13 +#include "gfxRect.h"
1.14 +#include "gfxLineSegment.h"
1.15 +#include <algorithm>
1.16 +
1.17 +struct gfxQuad {
1.18 + gfxQuad(const gfxPoint& aOne, const gfxPoint& aTwo, const gfxPoint& aThree, const gfxPoint& aFour)
1.19 + {
1.20 + mPoints[0] = aOne;
1.21 + mPoints[1] = aTwo;
1.22 + mPoints[2] = aThree;
1.23 + mPoints[3] = aFour;
1.24 + }
1.25 +
1.26 + bool Contains(const gfxPoint& aPoint)
1.27 + {
1.28 + return (gfxLineSegment(mPoints[0], mPoints[1]).PointsOnSameSide(aPoint, mPoints[2]) &&
1.29 + gfxLineSegment(mPoints[1], mPoints[2]).PointsOnSameSide(aPoint, mPoints[3]) &&
1.30 + gfxLineSegment(mPoints[2], mPoints[3]).PointsOnSameSide(aPoint, mPoints[0]) &&
1.31 + gfxLineSegment(mPoints[3], mPoints[0]).PointsOnSameSide(aPoint, mPoints[1]));
1.32 + }
1.33 +
1.34 + gfxRect GetBounds()
1.35 + {
1.36 + gfxFloat min_x, max_x;
1.37 + gfxFloat min_y, max_y;
1.38 +
1.39 + min_x = max_x = mPoints[0].x;
1.40 + min_y = max_y = mPoints[0].y;
1.41 +
1.42 + for (int i=1; i<4; i++) {
1.43 + min_x = std::min(mPoints[i].x, min_x);
1.44 + max_x = std::max(mPoints[i].x, max_x);
1.45 + min_y = std::min(mPoints[i].y, min_y);
1.46 + max_y = std::max(mPoints[i].y, max_y);
1.47 + }
1.48 + return gfxRect(min_x, min_y, max_x - min_x, max_y - min_y);
1.49 + }
1.50 +
1.51 + gfxPoint mPoints[4];
1.52 +};
1.53 +
1.54 +#endif /* GFX_QUAD_H */
