/**************************************************************************** | |
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** This file is part of the QtOpenGL module of the Qt Toolkit. | |
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** rights. These rights are described in the Nokia Qt LGPL Exception | |
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** | |
** GNU General Public License Usage | |
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** file. Please review the following information to ensure the GNU General | |
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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 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 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 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; | |
}; | |
// 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 qTriangulate(const qreal *polygon, int count, uint hint = QVectorPath::PolygonHint | QVectorPath::OddEvenFill, const QTransform &matrix = QTransform()); | |
QTriangleSet qTriangulate(const QVectorPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); | |
QTriangleSet qTriangulate(const QPainterPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); | |
QPolylineSet qPolyline(const QVectorPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); | |
QPolylineSet qPolyline(const QPainterPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); | |
QT_END_NAMESPACE | |
#endif |