File indexing completed on 2024-05-19 04:36:37

 /* 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 "RectShape.h"
 #include "NodeItem.h"
 
 #include <tikz/core/Style.h>
 #include <tikz/core/tikz.h>
 
 #include <cmath>
 
 #include <QDebug>
 
 namespace tikz {
 namespace ui {
 
 class RectShapePrivate
 {
     public:
 };
 
 RectShape::RectShape(NodeItem * node)
     : AbstractShape(node)
     , d(new RectShapePrivate())
 {
 }
 
 RectShape::~RectShape()
 {
     delete d;
 }
 
 tikz::Shape RectShape::type() const
 {
     return tikz::Shape::ShapeRectangle;
 }
 
 QPainterPath RectShape::shape() const
 {
     QPainterPath path;
     path.addRect(node()->shapeRect());
     return path;
 }
 
 QPainterPath RectShape::outline() const
 {
     const qreal lw = node()->style()->penWidth().toPoint() / 2;
     QRectF rect = node()->shapeRect();
     rect.adjust(-lw, -lw, lw, lw);
 
     QPainterPath path;
     path.addRect(rect);
     return path;
 }
 
 QStringList RectShape::supportedAnchors() const
 {
     // by default, just return NoAnchor
     const QStringList anchors = QStringList()
         << QString()
         << QStringLiteral("center")
         << QStringLiteral("north")
         << QStringLiteral("north east")
         << QStringLiteral("east")
         << QStringLiteral("south east")
         << QStringLiteral("south")
         << QStringLiteral("south west")
         << QStringLiteral("west")
         << QStringLiteral("north west");
     return anchors;
 }
 
 QPointF RectShape::anchorPos(const QString & anchor) const
 {
     if (anchor.isEmpty()) {
         return QPointF(0, 0);
     }
 
     const QRectF shapeRect = node()->shapeRect();
     const qreal rx = shapeRect.width() / 2.0 + node()->style()->outerSep().toPoint();
     const qreal ry = shapeRect.height() / 2.0 + node()->style()->outerSep().toPoint();
 
     if (anchor == QStringLiteral("center")) {
         return QPointF(0, 0);
     } else if (anchor == QStringLiteral("north")) {
         return QPointF(0, ry);
     } else if (anchor == QStringLiteral("north east")) {
         return QPointF(rx, ry);
     } else if (anchor == QStringLiteral("east")) {
         return QPointF(rx, 0);
     } else if (anchor == QStringLiteral("south east")) {
         return QPointF(rx, -ry);
     } else if (anchor == QStringLiteral("south")) {
         return QPointF(0, -ry);
     } else if (anchor == QStringLiteral("south west")) {
         return QPointF(-rx, -ry);
     } else if (anchor == QStringLiteral("west")) {
         return QPointF(-rx, 0);
     } else if (anchor == QStringLiteral("north west")) {
         return QPointF(-rx, ry);
     }
 
     tikz::warn("The shape 'rectangle' does not support anchor '" + anchor + "'.");
 
     return QPointF(0, 0);
 }
 
 QPointF RectShape::contactPoint(const QString & anchor, qreal rad) const
 {
     if (! anchor.isEmpty()) {
         return anchorPos(anchor);
     }
 
     const QRectF shapeRect = node()->shapeRect();
     const qreal rx = shapeRect.width() / 2.0 + node()->style()->outerSep().toPoint();
     const qreal ry = shapeRect.height() / 2.0 + node()->style()->outerSep().toPoint();
 
     qreal x = std::cos(rad);
     qreal y = std::sin(rad);
     if (qFuzzyCompare(y, 0.0)) {
         x *= rx;
     } else if (qFuzzyCompare(x, 0.0)) {
         y *= ry;
     } else {
         if (fabs(y) != ry) {
             // normalize to y
             x = (x < 0 ? -1 : 1) * fabs(ry * x / y);
             y = (y < 0 ? -1 : 1) * ry;
         }
         if (fabs(x) > rx) {
             // normalize to x
             y = (y < 0 ? -1 : 1) * fabs(rx * y / x);
             x = (x < 0 ? -1 : 1) * rx;
         }
     }
     return QPointF(x, y);
 }
 
 }
 }
 
 // kate: indent-width 4; replace-tabs on;