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| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
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| |
| #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 <QtCore/qvector.h> |
| #include <QtGui/private/qvectorpath_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class Q_GUI_EXPORT 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(); |
| } |
| |
| inline QVertexIndexVector &operator = (const QVertexIndexVector &other) |
| { |
| if (t == UnsignedInt) |
| indices32 = other.indices32; |
| else |
| indices16 = other.indices16; |
| |
| return *this; |
| } |
| |
| private: |
| |
| Type t; |
| QVector<quint32> indices32; |
| QVector<quint16> indices16; |
| }; |
| |
| struct Q_GUI_EXPORT QTriangleSet |
| { |
| inline QTriangleSet() { } |
| inline QTriangleSet(const QTriangleSet &other) : vertices(other.vertices), indices(other.indices) { } |
| QTriangleSet &operator = (const QTriangleSet &other) {vertices = other.vertices; indices = other.indices; return *this;} |
| |
| // 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 Q_GUI_EXPORT QPolylineSet |
| { |
| inline QPolylineSet() { } |
| inline QPolylineSet(const QPolylineSet &other) : vertices(other.vertices), indices(other.indices) { } |
| QPolylineSet &operator = (const QPolylineSet &other) {vertices = other.vertices; indices = other.indices; return *this;} |
| |
| 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()); |
| QTriangleSet Q_GUI_EXPORT qTriangulate(const QVectorPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); |
| QTriangleSet Q_GUI_EXPORT qTriangulate(const QPainterPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); |
| QPolylineSet qPolyline(const QVectorPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); |
| QPolylineSet Q_GUI_EXPORT qPolyline(const QPainterPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); |
| |
| QT_END_NAMESPACE |
| |
| #endif |