74 lines
3.1 KiB
C++
74 lines
3.1 KiB
C++
/*
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* Copyright (C) 2014 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "FloatRect.h"
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#include "IntRect.h"
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#include <wtf/Forward.h>
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namespace WebCore {
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class FloatQuad;
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float euclidianDistance(const FloatPoint&, const FloatPoint&);
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float findSlope(const FloatPoint& p1, const FloatPoint& p2, float& c);
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// Find point where lines through the two pairs of points intersect. Returns false if the lines don't intersect.
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WEBCORE_EXPORT bool findIntersection(const FloatPoint& p1, const FloatPoint& p2, const FloatPoint& d1, const FloatPoint& d2, FloatPoint& intersection);
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WEBCORE_EXPORT IntRect unionRect(const Vector<IntRect>&);
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WEBCORE_EXPORT FloatRect unionRect(const Vector<FloatRect>&);
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WEBCORE_EXPORT FloatRect unionRectIgnoringZeroRects(const Vector<FloatRect>&);
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// Map point from srcRect to an equivalent point in destRect.
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FloatPoint mapPoint(FloatPoint, const FloatRect& srcRect, const FloatRect& destRect);
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// Map rect from srcRect to an equivalent rect in destRect.
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FloatRect mapRect(const FloatRect&, const FloatRect& srcRect, const FloatRect& destRect);
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WEBCORE_EXPORT FloatRect largestRectWithAspectRatioInsideRect(float aspectRatio, const FloatRect&);
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WEBCORE_EXPORT FloatRect smallestRectWithAspectRatioAroundRect(float aspectRatio, const FloatRect&);
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FloatSize sizeWithAreaAndAspectRatio(float area, float aspectRatio);
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// Compute a rect that encloses all points covered by the given rect if it were rotated a full turn around (0,0).
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FloatRect boundsOfRotatingRect(const FloatRect&);
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bool ellipseContainsPoint(const FloatPoint& center, const FloatSize& radii, const FloatPoint&);
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FloatPoint midPoint(const FloatPoint&, const FloatPoint&);
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struct RotatedRect {
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FloatPoint center;
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FloatSize size;
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float angleInRadians;
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};
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WEBCORE_EXPORT RotatedRect rotatedBoundingRectWithMinimumAngleOfRotation(const FloatQuad&, std::optional<float> minRotationInRadians = std::nullopt);
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}
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