зеркало из https://github.com/mozilla/gecko-dev.git
66 строки
1.7 KiB
C++
66 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_TRIANGLE_H
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#define MOZILLA_GFX_TRIANGLE_H
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#include <algorithm>
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#include "mozilla/Move.h"
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#include "Point.h"
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#include "Rect.h"
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namespace mozilla {
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namespace gfx {
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/**
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* A simple triangle data structure.
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*/
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template<class Units, class F = Float>
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struct TriangleTyped
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{
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PointTyped<Units, F> p1, p2, p3;
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TriangleTyped()
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: p1(), p2(), p3() {}
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TriangleTyped(PointTyped<Units, F> aP1,
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PointTyped<Units, F> aP2,
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PointTyped<Units, F> aP3)
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: p1(aP1), p2(aP2), p3(aP3) {}
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RectTyped<Units, F> BoundingBox() const
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{
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F minX = std::min(std::min(p1.x, p2.x), p3.x);
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F maxX = std::max(std::max(p1.x, p2.x), p3.x);
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F minY = std::min(std::min(p1.y, p2.y), p3.y);
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F maxY = std::max(std::max(p1.y, p2.y), p3.y);
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return RectTyped<Units, F>(minX, minY, maxX - minX, maxY - minY);
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}
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};
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typedef TriangleTyped<UnknownUnits, Float> Triangle;
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template<class Units, class F = Float>
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struct TexturedTriangleTyped : public TriangleTyped<Units, F>
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{
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explicit TexturedTriangleTyped(const TriangleTyped<Units, F>& aTriangle)
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: TriangleTyped<Units, F>(aTriangle) {}
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explicit TexturedTriangleTyped(TriangleTyped<Units, F>&& aTriangle)
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: TriangleTyped<Units, F>(Move(aTriangle)) {}
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TriangleTyped<Units, F> textureCoords;
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};
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typedef TexturedTriangleTyped<UnknownUnits, Float> TexturedTriangle;
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} // namespace gfx
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} // namespace mozilla
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#endif /* MOZILLA_GFX_TRIANGLE_H */
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