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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 */
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