File indexing completed on 2024-12-01 12:33:51
0001 /* 0002 * Copyright (C) 2008-2009 Fredrik Höglund <fredrik@kde.org> 0003 * 0004 * This library is free software; you can redistribute it and/or 0005 * modify it under the terms of the GNU Library General Public 0006 * License as published by the Free Software Foundation; either 0007 * version 2 of the License, or (at your option) any later version. 0008 * 0009 * This library is distributed in the hope that it will be useful, 0010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0012 * Library General Public License for more details. 0013 * 0014 * You should have received a copy of the GNU Library General Public License 0015 * along with this library; see the file COPYING.LIB. If not, write to 0016 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0017 * Boston, MA 02110-1301, USA. 0018 */ 0019 0020 #ifndef BORDERARCSTROKER_H 0021 #define BORDERARCSTROKER_H 0022 0023 #include <QPainterPath> 0024 #include <QRect> 0025 0026 namespace khtml 0027 { 0028 0029 class BorderArcStroker 0030 { 0031 public: 0032 BorderArcStroker(); 0033 ~BorderArcStroker(); 0034 0035 void setArc(const QRectF &r, qreal startAngle, qreal _sweepLength) 0036 { 0037 rect = r; 0038 angle = startAngle; 0039 sweepLength = _sweepLength; 0040 } 0041 void setPenWidth(qreal leftRight, qreal topBottom); 0042 void setDashPattern(qreal dashLength, qreal spaceLength); 0043 void setDashOffset(qreal offset) 0044 { 0045 patternOffset = offset; 0046 } 0047 0048 QPainterPath createStroke(qreal *nextOffset = nullptr) const; 0049 0050 private: 0051 QRectF rect; 0052 qreal angle; 0053 qreal hlw; 0054 qreal vlw; 0055 qreal sweepLength; 0056 qreal patternOffset; 0057 qreal pattern[2]; 0058 }; 0059 0060 inline void BorderArcStroker::setPenWidth(qreal leftRight, qreal topBottom) 0061 { 0062 hlw = qMax(qreal(0.1), leftRight); 0063 vlw = qMax(qreal(0.1), topBottom); 0064 } 0065 0066 inline void BorderArcStroker::setDashPattern(qreal dashLength, qreal spaceLength) 0067 { 0068 pattern[0] = qMax(qreal(0.1), dashLength); 0069 pattern[1] = qMax(qreal(0.1), spaceLength); 0070 } 0071 0072 } // namespace khtml 0073 0074 #endif