forked from jshiffer/matterbridge
286 lines
8.9 KiB
C
286 lines
8.9 KiB
C
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/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef VPATH_H
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#define VPATH_H
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#include <vector>
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#include "vector_vcowptr.h"
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#include "vector_vmatrix.h"
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#include "vector_vpoint.h"
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#include "vector_vrect.h"
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V_BEGIN_NAMESPACE
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struct VPathData;
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class VPath {
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public:
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enum class Direction { CCW, CW };
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enum class Element : uchar { MoveTo, LineTo, CubicTo, Close };
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bool empty() const;
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bool null() const;
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void moveTo(const VPointF &p);
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void moveTo(float x, float y);
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void lineTo(const VPointF &p);
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void lineTo(float x, float y);
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void cubicTo(const VPointF &c1, const VPointF &c2, const VPointF &e);
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void cubicTo(float c1x, float c1y, float c2x, float c2y, float ex,
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float ey);
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void arcTo(const VRectF &rect, float startAngle, float sweepLength,
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bool forceMoveTo);
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void close();
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void reset();
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void reserve(size_t pts, size_t elms);
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size_t segments() const;
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void addCircle(float cx, float cy, float radius,
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VPath::Direction dir = Direction::CW);
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void addOval(const VRectF &rect, VPath::Direction dir = Direction::CW);
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void addRoundRect(const VRectF &rect, float rx, float ry,
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VPath::Direction dir = Direction::CW);
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void addRoundRect(const VRectF &rect, float roundness,
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VPath::Direction dir = Direction::CW);
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void addRect(const VRectF &rect, VPath::Direction dir = Direction::CW);
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void addPolystar(float points, float innerRadius, float outerRadius,
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float innerRoundness, float outerRoundness,
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float startAngle, float cx, float cy,
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VPath::Direction dir = Direction::CW);
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void addPolygon(float points, float radius, float roundness,
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float startAngle, float cx, float cy,
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VPath::Direction dir = Direction::CW);
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void addPath(const VPath &path);
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void addPath(const VPath &path, const VMatrix &m);
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void transform(const VMatrix &m);
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float length() const;
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const std::vector<VPath::Element> &elements() const;
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const std::vector<VPointF> & points() const;
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void clone(const VPath &srcPath);
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bool unique() const { return d.unique();}
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size_t refCount() const { return d.refCount();}
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private:
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struct VPathData {
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bool empty() const { return m_elements.empty(); }
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bool null() const { return empty() && !m_elements.capacity();}
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void moveTo(float x, float y);
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void lineTo(float x, float y);
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void cubicTo(float cx1, float cy1, float cx2, float cy2, float ex, float ey);
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void close();
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void reset();
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void reserve(size_t, size_t);
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void checkNewSegment();
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size_t segments() const;
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void transform(const VMatrix &m);
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float length() const;
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void addRoundRect(const VRectF &, float, float, VPath::Direction);
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void addRoundRect(const VRectF &, float, VPath::Direction);
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void addRect(const VRectF &, VPath::Direction);
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void arcTo(const VRectF &, float, float, bool);
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void addCircle(float, float, float, VPath::Direction);
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void addOval(const VRectF &, VPath::Direction);
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void addPolystar(float points, float innerRadius, float outerRadius,
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float innerRoundness, float outerRoundness,
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float startAngle, float cx, float cy,
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VPath::Direction dir = Direction::CW);
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void addPolygon(float points, float radius, float roundness,
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float startAngle, float cx, float cy,
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VPath::Direction dir = Direction::CW);
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void addPath(const VPathData &path, const VMatrix *m = nullptr);
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void clone(const VPath::VPathData &o) { *this = o;}
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const std::vector<VPath::Element> &elements() const
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{
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return m_elements;
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}
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const std::vector<VPointF> &points() const { return m_points; }
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std::vector<VPointF> m_points;
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std::vector<VPath::Element> m_elements;
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size_t m_segments;
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VPointF mStartPoint;
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mutable float mLength{0};
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mutable bool mLengthDirty{true};
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bool mNewSegment;
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};
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vcow_ptr<VPathData> d;
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};
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inline bool VPath::empty() const
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{
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return d->empty();
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}
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/*
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* path is empty as well as null(no memory for data allocated yet).
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*/
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inline bool VPath::null() const
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{
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return d->null();
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}
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inline void VPath::moveTo(const VPointF &p)
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{
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d.write().moveTo(p.x(), p.y());
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}
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inline void VPath::lineTo(const VPointF &p)
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{
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d.write().lineTo(p.x(), p.y());
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}
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inline void VPath::close()
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{
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d.write().close();
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}
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inline void VPath::reset()
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{
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d.write().reset();
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}
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inline void VPath::reserve(size_t pts, size_t elms)
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{
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d.write().reserve(pts, elms);
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}
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inline size_t VPath::segments() const
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{
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return d->segments();
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}
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inline float VPath::length() const
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{
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return d->length();
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}
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inline void VPath::cubicTo(const VPointF &c1, const VPointF &c2,
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const VPointF &e)
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{
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d.write().cubicTo(c1.x(), c1.y(), c2.x(), c2.y(), e.x(), e.y());
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}
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inline void VPath::lineTo(float x, float y)
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{
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d.write().lineTo(x, y);
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}
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inline void VPath::moveTo(float x, float y)
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{
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d.write().moveTo(x, y);
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}
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inline void VPath::cubicTo(float c1x, float c1y, float c2x, float c2y, float ex,
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float ey)
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{
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d.write().cubicTo(c1x, c1y, c2x, c2y, ex, ey);
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}
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inline void VPath::transform(const VMatrix &m)
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{
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d.write().transform(m);
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}
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inline void VPath::arcTo(const VRectF &rect, float startAngle,
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float sweepLength, bool forceMoveTo)
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{
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d.write().arcTo(rect, startAngle, sweepLength, forceMoveTo);
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}
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inline void VPath::addRect(const VRectF &rect, VPath::Direction dir)
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{
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d.write().addRect(rect, dir);
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}
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inline void VPath::addRoundRect(const VRectF &rect, float rx, float ry,
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VPath::Direction dir)
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{
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d.write().addRoundRect(rect, rx, ry, dir);
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}
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inline void VPath::addRoundRect(const VRectF &rect, float roundness,
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VPath::Direction dir)
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{
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d.write().addRoundRect(rect, roundness, dir);
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}
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inline void VPath::addCircle(float cx, float cy, float radius,
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VPath::Direction dir)
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{
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d.write().addCircle(cx, cy, radius, dir);
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}
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inline void VPath::addOval(const VRectF &rect, VPath::Direction dir)
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{
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d.write().addOval(rect, dir);
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}
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inline void VPath::addPolystar(float points, float innerRadius,
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float outerRadius, float innerRoundness,
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float outerRoundness, float startAngle, float cx,
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float cy, VPath::Direction dir)
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{
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d.write().addPolystar(points, innerRadius, outerRadius, innerRoundness,
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outerRoundness, startAngle, cx, cy, dir);
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}
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inline void VPath::addPolygon(float points, float radius, float roundness,
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float startAngle, float cx, float cy,
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VPath::Direction dir)
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{
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d.write().addPolygon(points, radius, roundness, startAngle, cx, cy, dir);
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}
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inline void VPath::addPath(const VPath &path)
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{
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if (path.empty()) return;
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if (null()) {
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*this = path;
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} else {
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d.write().addPath(path.d.read());
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}
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}
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inline void VPath::addPath(const VPath &path, const VMatrix &m)
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{
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if (path.empty()) return;
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d.write().addPath(path.d.read(), &m);
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}
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inline const std::vector<VPath::Element> &VPath::elements() const
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{
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return d->elements();
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}
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inline const std::vector<VPointF> &VPath::points() const
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{
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return d->points();
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}
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inline void VPath::clone(const VPath &o)
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{
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d.write().clone(o.d.read());
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}
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V_END_NAMESPACE
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#endif // VPATH_H
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