File indexing completed on 2024-05-19 04:36:33

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2013 Dominik Haumann <dhaumann@kde.org>
  *
  * This library is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Library General Public License as published
  * by the Free Software Foundation, either version 2 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 Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, see
  * <http://www.gnu.org/licenses/>.
  */
 
 #include "PipeArrow.h"
 
 #include <tikz/core/Style.h>
 
 #include <QPainter>
 
 #include <cmath>
 
 class PipeArrowPrivate
 {
     public:
 };
 
 PipeArrow::PipeArrow(tikz::core::Style * style)
     : AbstractArrow(style)
     , d(new PipeArrowPrivate())
 {
 }
 
 PipeArrow::~PipeArrow()
 {
     delete d;
 }
 
 tikz::Arrow PipeArrow::type() const
 {
     return tikz::Arrow::PipeArrow;
 }
 
 QString PipeArrow::name() const
 {
     return QObject::tr("|");
 }
 
 qreal PipeArrow::leftExtend() const
 {
     // see: pgfcorearrows.code.tex
     return -0.25 * style()->penWidth().toPoint();
 }
 
 qreal PipeArrow::rightExtend() const
 {
     // see: pgfcorearrows.code.tex
     return 0.75 * style()->penWidth().toPoint();
 }
 
 void PipeArrow::draw(QPainter* painter) const
 {
     // see: pgfcorearrows.code.tex
     QPainterPath p = path();
     painter->save();
     QPen pen = painter->pen();
     pen.setWidthF(style()->penWidth().toPoint());
     pen.setColor(style()->penColor());
     pen.setCapStyle(Qt::SquareCap);
     painter->setPen(pen);
     painter->setBrush(Qt::NoBrush);
     painter->drawPath(p);
     painter->restore();
 }
 
 QPainterPath PipeArrow::path() const
 {
     // see: pgfcorearrows.code.tex
     const qreal lineWidth = style()->penWidth().toPoint();
     const qreal dima = 2 + 1.5 * lineWidth;
     QPainterPath path;
     path.moveTo(QPointF(0.25 * lineWidth, -dima));
     path.lineTo(QPointF(0.25 * lineWidth,  dima));
 
     return path;
 }
 
 QPainterPath PipeArrow::contour(qreal width) const
 {
     QPainterPathStroker stroker;
     stroker.setJoinStyle(Qt::RoundJoin);
     stroker.setCapStyle(Qt::SquareCap);
     stroker.setWidth(width + style()->penWidth().toPoint());
 
     return stroker.createStroke(path());
 }
 
 
 // kate: indent-width 4; replace-tabs on;