libs/flake/KoConnectionShape_p.h

0001 /* This file is part of the KDE project
0002  * Copyright (C) 2009 Thomas Zander <zander@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 #ifndef KOCONNECTIONSHAPEPRIVATE_P
0020 #define KOCONNECTIONSHAPEPRIVATE_P
0021
0022 #include "KoParameterShape_p.h"
0023
0024 class KoConnectionShapePrivate : public KoParameterShapePrivate
0025 {
0026 public:
0027     explicit KoConnectionShapePrivate(KoConnectionShape *q);
0028
0029     /// Returns escape direction of given handle
0030     QPointF escapeDirection(int handleId) const;
0031
0032     /// Checks if rays from given points into given directions intersect
0033     bool intersects(const QPointF &p1, const QPointF &d1, const QPointF &p2, const QPointF &d2, QPointF &isect);
0034
0035     /// Returns perpendicular direction from given point p1 and direction d1 toward point p2
0036     QPointF perpendicularDirection(const QPointF &p1, const QPointF &d1, const QPointF &p2);
0037
0038     /// Populate the path list by a normal way
0039     void normalPath(const qreal MinimumEscapeLength);
0040
0041     qreal scalarProd(const QPointF &v1, const QPointF &v2) const;
0042     qreal crossProd(const QPointF &v1, const QPointF &v2) const;
0043
0044     /// Returns if given handle is connected to a shape
0045     bool handleConnected(int handleId) const;
0046
0047     QVector<QPointF> path;
0048
0049     KoShape *shape1;
0050     KoShape *shape2;
0051     int connectionPointId1;
0052     int connectionPointId2;
0053     KoConnectionShape::Type connectionType;
0054     bool forceUpdate;
0055     bool hasCustomPath;
0056     Q_DECLARE_PUBLIC(KoConnectionShape)
0057 };
0058
0059 #endif