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76ee07f61c
Co-authored-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com> Co-committed-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com>
229 lines
8.3 KiB
C++
229 lines
8.3 KiB
C++
/*
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* Copyright (C) Ascensio System SIA, 2009-2026
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation, together with the
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* additional terms provided in the LICENSE file.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: https://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA by email at info@onlyoffice.com
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* or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
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* LV-1050, Latvia, European Union.
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*
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* The interactive user interfaces in modified versions of the Program
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* are required to display Appropriate Legal Notices in accordance with
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* Section 5 of the GNU AGPL version 3.
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*
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* No trademark rights are granted under this License.
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*
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* All non-code elements of the Product, including illustrations,
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* icon sets, and technical writing content, are licensed under the
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* Creative Commons Attribution-ShareAlike 4.0 International License:
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* https://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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* This license applies only to such non-code elements and does not
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* modify or replace the licensing terms applicable to the Program's
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* source code, which remains licensed under the GNU Affero General
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* Public License v3.
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*
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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#ifndef BOOLEANOPERATIONS_H
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#define BOOLEANOPERATIONS_H
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#include "GraphicsPath.h"
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#include <memory>
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namespace Aggplus
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{
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struct Location;
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struct Segment
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{
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PointD P{};
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PointD HI{};
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PointD HO{};
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bool IsCurve = false;
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bool Visited = false;
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bool PolyClosed = false;
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bool Winding = false;
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int Index = -1;
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int Id = 0;
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std::shared_ptr<Location> Inters{nullptr};
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Segment() noexcept;
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Segment(const std::vector<PointD>& points, const bool& isCurve,
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const int& index, const int& id, const bool& polyClosed) noexcept;
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Segment(const PointD& point, const bool& isCurve, const int& index,
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const int& id, const bool& polyClosed) noexcept;
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Segment(const PointD& p) noexcept;
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Segment(const PointD& p, const PointD& hi, const PointD& ho) noexcept;
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void SetHandles(const PointD& hi, const PointD& ho) noexcept;
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void UpdateHandles(const PointD& hi, const PointD& ho) noexcept;
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bool IsValid(const BooleanOpType& op) const noexcept;
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bool IsEmpty() const noexcept;
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bool Equals(const Segment& other) const noexcept;
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bool operator==(const Segment& other) const noexcept;
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bool operator!=(const Segment& other) const noexcept;
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};
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struct Curve
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{
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Segment Segment1{};
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Segment Segment2{};
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Curve() noexcept;
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Curve(const Segment& segment1, const Segment& segment2) noexcept;
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Curve(const std::vector<double>& values) noexcept;
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Curve(const double& x0, const double& y0, const double& x1, const double& y1,
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const double& x2, const double& y2, const double& x3, const double& y3) noexcept;
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std::vector<double> GetXValues() const noexcept;
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std::vector<double> GetYValues() const noexcept;
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std::vector<double> GetBound() const noexcept;
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std::vector<double> GetPeeks() const;
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double GetLength(double a = 0, double b = 1) const;
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double GetSquaredLineLength() const noexcept;
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double GetTimeOf(const PointD& point) const noexcept;
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double GetTimeAt(const double& offset) const noexcept;
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PointD Get(const double& t, const int& type) const noexcept;
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PointD GetPoint(const double& t) const noexcept;
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PointD GetTangent(const double& t) const noexcept;
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PointD GetTangent(const double& t, const double& offset,
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const bool& inside, const PointD& p) const noexcept;
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Curve GetPart(double from, double to) const noexcept;
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std::vector<Curve> GetMonoCurves(const bool& dir) const noexcept;
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std::vector<double> GetCurveLineIntersection(const double& px, const double& py,
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const double& vx, const double& vy) const noexcept;
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std::vector<std::pair<double, double>> GetOverlaps(const Curve& curve) const noexcept;
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std::vector<Curve> Subdivide(const double& t) const noexcept;
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Curve DivideAtTime(const double& time) noexcept;
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int SolveCubic(const int& coord, const double& value, std::vector<double>& roots,
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const double& mn, const double& mx) const noexcept;
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int SolveCubic(double a, double b, double c, double d, std::vector<double>& roots,
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const double& mn, const double& mx) const noexcept;
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void Flip() noexcept;
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bool IsStraight() const noexcept;
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bool Equals(const Curve& other) const noexcept;
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bool operator==(const Curve& other) const noexcept;
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bool operator!=(const Curve& other) const noexcept;
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};
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struct Location
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{
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Curve C{};
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Segment S{};
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double Time = -1.0;
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bool Overlap = false;
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bool Ends = false;
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std::shared_ptr<Location> Inters{nullptr};
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std::shared_ptr<Location> Next{nullptr};
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std::shared_ptr<Location> Prev{nullptr};
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Location() noexcept;
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Location(const Curve& curve, const double& time, const bool& overlap, const bool& ends) noexcept;
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bool IsTouching() noexcept;
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};
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class CBooleanOperations
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{
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public:
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CBooleanOperations() {};
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CBooleanOperations(const CGraphicsPath& path1, const CGraphicsPath& path2, BooleanOpType op, long fillType, bool isLuminosity, bool isSelf);
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~CBooleanOperations();
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CGraphicsPath&& GetResult();
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bool IsSelfInters(const CGraphicsPath& p);
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// BooleanOp
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void TraceBoolean();
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void TraceOneInters();
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void TraceAllOverlap();
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void TracePaths();
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void TraceOneCurvePath1();
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void TraceOneCurvePath2();
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// Path
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void PreparePath(const CGraphicsPath& path, int id, std::vector<Segment>& segments,
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std::vector<Curve>& curves, bool reverse = false);
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void InsertSegment(Segment& segment, const Segment& handles, bool updateHandles);
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Curve GetCurve(const Segment& segment) const noexcept;
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Curve GetPreviousCurve(const Curve& curve) const noexcept;
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Curve GetNextCurve(const Curve& curve) const noexcept;
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Segment GetPreviousSegment(const Segment& segment) const noexcept;
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Segment GetNextSegment(const Segment& segment) const noexcept;
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void SetVisited(const Segment& segment);
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void CreateNewPath(const std::vector<std::vector<int>>& adjMatr) noexcept;
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// Bounds
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std::vector<std::vector<int>> FindBoundsCollisions();
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// Intersection
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bool IsCrossing(std::shared_ptr<Location> loc) noexcept;
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bool IntersectsBounds() noexcept;
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void GetIntersection();
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void GetCurveIntersection(const Curve& curve1, const Curve& curve2);
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void LinkIntersection(std::shared_ptr<Location> form, std::shared_ptr<Location> to);
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void AddLineIntersection(const Curve& curve1, const Curve& curve2);
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void AddCurveLineIntersection(const Curve& curve1, const Curve& curve2, bool flip);
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int AddCurveIntersection(const Curve& curve1, const Curve& curve2, const Curve& startCurve1, const Curve& startCurve2, bool flip,
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int recursion = 0, int calls = 0, double tMin = 0.0, double tMax = 1.0, double uMin = 0.0, double uMax = 1.0);
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int CheckInters(const PointD& point, const Segment& segment, const Curve& curve, int& touchCount) const;
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bool IsInside(const Segment& segment) const;
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void SetWinding();
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// Location
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void DivideLocations();
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void AddLocation(Curve curve1, Curve curve2, double t1, double t2, bool overlap = false, bool filter = true, bool bothEnds = false);
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void InsertLocation(std::shared_ptr<Location> loc, bool overlap);
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bool AllOverlap() const noexcept;
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bool AllInters(const std::vector<Segment>& segments) const noexcept;
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bool IsOneCurvePath(int pathIndex) const noexcept;
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void AddOffsets(std::vector<double>& offsets, const Curve& curve, bool end);
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bool CheckLocation(std::shared_ptr<Location> loc, bool start) const noexcept;
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bool IsOnlyEnds() const noexcept;
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private:
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BooleanOpType Op = Intersection;
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bool Close1 = true;
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bool Close2 = true;
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bool IsLuminosity = false;
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bool IsSelf = false;
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// c_nStroke, c_nWindingFillMode, c_nEvenOddFillMode
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long FillType = c_nWindingFillMode;
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CGraphicsPath Path1{};
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CGraphicsPath Path2{};
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CGraphicsPath Result{};
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std::vector<Segment> Segments1;
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std::vector<Segment> Segments2;
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std::vector<Curve> OriginCurves1;
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std::vector<Curve> OriginCurves2;
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std::vector<Curve> Curves1;
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std::vector<Curve> Curves2;
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std::vector<std::shared_ptr<Location>> Locations;
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};
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} // namespace Aggplus
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#endif // BOOLEANOPERATIONS_H
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