| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QTRIANGULATOR_P_H |
| #define QTRIANGULATOR_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtGui/private/qtguiglobal_p.h> |
| #include <QtCore/qvector.h> |
| #include <QtGui/private/qvectorpath_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QVertexIndexVector |
| { |
| public: |
| enum Type { |
| UnsignedInt, |
| UnsignedShort |
| }; |
| |
| inline Type type() const { return t; } |
| |
| inline void setDataUint(const QVector<quint32> &data) |
| { |
| t = UnsignedInt; |
| indices32 = data; |
| } |
| |
| inline void setDataUshort(const QVector<quint16> &data) |
| { |
| t = UnsignedShort; |
| indices16 = data; |
| } |
| |
| inline const void* data() const |
| { |
| if (t == UnsignedInt) |
| return indices32.data(); |
| return indices16.data(); |
| } |
| |
| inline int size() const |
| { |
| if (t == UnsignedInt) |
| return indices32.size(); |
| return indices16.size(); |
| } |
| |
| private: |
| |
| Type t; |
| QVector<quint32> indices32; |
| QVector<quint16> indices16; |
| }; |
| |
| struct QTriangleSet |
| { |
| // The vertices of a triangle are given by: (x[i[n]], y[i[n]]), (x[j[n]], y[j[n]]), (x[k[n]], y[k[n]]), n = 0, 1, ... |
| QVector<qreal> vertices; // [x[0], y[0], x[1], y[1], x[2], ...] |
| QVertexIndexVector indices; // [i[0], j[0], k[0], i[1], j[1], k[1], i[2], ...] |
| }; |
| |
| struct QPolylineSet |
| { |
| QVector<qreal> vertices; // [x[0], y[0], x[1], y[1], x[2], ...] |
| QVertexIndexVector indices; // End of polyline is marked with -1. |
| }; |
| |
| // The vertex coordinates of the returned triangle set will be rounded to a grid with a mesh size |
| // of 1/32. The polygon is first transformed, then scaled by 32, the coordinates are rounded to |
| // integers, the polygon is triangulated, and then scaled back by 1/32. |
| // 'hint' should be a combination of QVectorPath::Hints. |
| // 'lod' is the level of detail. Default is 1. Curves are split into more lines when 'lod' is higher. |
| QTriangleSet Q_GUI_EXPORT qTriangulate(const qreal *polygon, int count, |
| uint hint = QVectorPath::PolygonHint | QVectorPath::OddEvenFill, |
| const QTransform &matrix = QTransform(), |
| bool allowUintIndices = true); |
| QTriangleSet Q_GUI_EXPORT qTriangulate(const QVectorPath &path, const QTransform &matrix = QTransform(), |
| qreal lod = 1, bool allowUintIndices = true); |
| QTriangleSet Q_GUI_EXPORT qTriangulate(const QPainterPath &path, const QTransform &matrix = QTransform(), |
| qreal lod = 1, bool allowUintIndices = true); |
| QPolylineSet qPolyline(const QVectorPath &path, const QTransform &matrix = QTransform(), |
| qreal lod = 1, bool allowUintIndices = true); |
| QPolylineSet Q_GUI_EXPORT qPolyline(const QPainterPath &path, const QTransform &matrix = QTransform(), |
| qreal lod = 1, bool allowUintIndices = true); |
| |
| QT_END_NAMESPACE |
| |
| #endif |