Files
Swiftgram/src/vector/vdasher.h
2019-06-24 14:52:57 +09:00

58 lines
1.8 KiB
C++

/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef VDASHER_H
#define VDASHER_H
#include "vpath.h"
V_BEGIN_NAMESPACE
class VDasher {
public:
VDasher(const float *dashArray, size_t size);
VPath dashed(const VPath &path);
private:
void moveTo(const VPointF &p);
void lineTo(const VPointF &p);
void cubicTo(const VPointF &cp1, const VPointF &cp2, const VPointF &e);
void close();
void addLine(const VPointF &p);
void addCubic(const VPointF &cp1, const VPointF &cp2, const VPointF &e);
void updateActiveSegment();
private:
struct Dash {
float length;
float gap;
};
const VDasher::Dash *mDashArray;
size_t mArraySize{0};
VPointF mCurPt;
size_t mIndex{0}; /* index to the dash Array */
float mCurrentLength;
bool mDiscard;
float mDashOffset{0};
VPath mResult;
bool mStartNewSegment=true;
};
V_END_NAMESPACE
#endif // VDASHER_H