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-/****************************************************************************
-**
-** 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 QMATRIX_H
-#define QMATRIX_H
-
-#include <QtGui/qtguiglobal.h>
-#include <QtGui/qpolygon.h>
-#include <QtGui/qregion.h>
-#include <QtGui/qwindowdefs.h>
-#include <QtCore/qline.h>
-#include <QtCore/qpoint.h>
-#include <QtCore/qrect.h>
-
-QT_BEGIN_NAMESPACE
-
-
-class QPainterPath;
-class QVariant;
-
-class Q_GUI_EXPORT QMatrix // 2D transform matrix
-{
-public:
- inline explicit QMatrix(Qt::Initialization) {}
- QMatrix();
- QMatrix(qreal m11, qreal m12, qreal m21, qreal m22,
- qreal dx, qreal dy);
-
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
- // ### Qt 6: remove; the compiler-generated ones are fine!
- QMatrix &operator=(QMatrix &&other) noexcept // = default
- { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(QMatrix)); return *this; }
- QMatrix &operator=(const QMatrix &) noexcept; // = default
- QMatrix(QMatrix &&other) noexcept // = default
- { memcpy(static_cast<void *>(this), static_cast<void *>(&other), sizeof(QMatrix)); }
- QMatrix(const QMatrix &other) noexcept; // = default
-#endif
-
- void setMatrix(qreal m11, qreal m12, qreal m21, qreal m22,
- qreal dx, qreal dy);
-
- qreal m11() const { return _m11; }
- qreal m12() const { return _m12; }
- qreal m21() const { return _m21; }
- qreal m22() const { return _m22; }
- qreal dx() const { return _dx; }
- qreal dy() const { return _dy; }
-
- void map(int x, int y, int *tx, int *ty) const;
- void map(qreal x, qreal y, qreal *tx, qreal *ty) const;
- QRect mapRect(const QRect &) const;
- QRectF mapRect(const QRectF &) const;
-
- QPoint map(const QPoint &p) const;
- QPointF map(const QPointF&p) const;
- QLine map(const QLine &l) const;
- QLineF map(const QLineF &l) const;
- QPolygonF map(const QPolygonF &a) const;
- QPolygon map(const QPolygon &a) const;
- QRegion map(const QRegion &r) const;
- QPainterPath map(const QPainterPath &p) const;
- QPolygon mapToPolygon(const QRect &r) const;
-
- void reset();
- inline bool isIdentity() const;
-
- QMatrix &translate(qreal dx, qreal dy);
- QMatrix &scale(qreal sx, qreal sy);
- QMatrix &shear(qreal sh, qreal sv);
- QMatrix &rotate(qreal a);
-
- bool isInvertible() const { return !qFuzzyIsNull(_m11*_m22 - _m12*_m21); }
- qreal determinant() const { return _m11*_m22 - _m12*_m21; }
-
- Q_REQUIRED_RESULT QMatrix inverted(bool *invertible = nullptr) const;
-
- bool operator==(const QMatrix &) const;
- bool operator!=(const QMatrix &) const;
-
- QMatrix &operator*=(const QMatrix &);
- QMatrix operator*(const QMatrix &o) const;
-
- operator QVariant() const;
-
-private:
- inline QMatrix(bool)
- : _m11(1.)
- , _m12(0.)
- , _m21(0.)
- , _m22(1.)
- , _dx(0.)
- , _dy(0.) {}
- inline QMatrix(qreal am11, qreal am12, qreal am21, qreal am22, qreal adx, qreal ady, bool)
- : _m11(am11)
- , _m12(am12)
- , _m21(am21)
- , _m22(am22)
- , _dx(adx)
- , _dy(ady) {}
- friend class QTransform;
- qreal _m11, _m12;
- qreal _m21, _m22;
- qreal _dx, _dy;
-};
-Q_DECLARE_TYPEINFO(QMatrix, Q_MOVABLE_TYPE);
-
-Q_GUI_EXPORT Q_DECL_CONST_FUNCTION uint qHash(const QMatrix &key, uint seed = 0) noexcept;
-
-// mathematical semantics
-inline QPoint operator*(const QPoint &p, const QMatrix &m)
-{ return m.map(p); }
-inline QPointF operator*(const QPointF &p, const QMatrix &m)
-{ return m.map(p); }
-inline QLineF operator*(const QLineF &l, const QMatrix &m)
-{ return m.map(l); }
-inline QLine operator*(const QLine &l, const QMatrix &m)
-{ return m.map(l); }
-inline QPolygon operator *(const QPolygon &a, const QMatrix &m)
-{ return m.map(a); }
-inline QPolygonF operator *(const QPolygonF &a, const QMatrix &m)
-{ return m.map(a); }
-inline QRegion operator *(const QRegion &r, const QMatrix &m)
-{ return m.map(r); }
-Q_GUI_EXPORT QPainterPath operator *(const QPainterPath &p, const QMatrix &m);
-
-inline bool QMatrix::isIdentity() const
-{
- return qFuzzyIsNull(_m11 - 1) && qFuzzyIsNull(_m22 - 1) && qFuzzyIsNull(_m12)
- && qFuzzyIsNull(_m21) && qFuzzyIsNull(_dx) && qFuzzyIsNull(_dy);
-}
-
-inline bool qFuzzyCompare(const QMatrix& m1, const QMatrix& m2)
-{
- return qFuzzyCompare(m1.m11(), m2.m11())
- && qFuzzyCompare(m1.m12(), m2.m12())
- && qFuzzyCompare(m1.m21(), m2.m21())
- && qFuzzyCompare(m1.m22(), m2.m22())
- && qFuzzyCompare(m1.dx(), m2.dx())
- && qFuzzyCompare(m1.dy(), m2.dy());
-}
-
-
-/*****************************************************************************
- QMatrix stream functions
- *****************************************************************************/
-
-#ifndef QT_NO_DATASTREAM
-Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QMatrix &);
-Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QMatrix &);
-#endif
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QMatrix &);
-#endif
-
-QT_END_NAMESPACE
-
-#endif // QMATRIX_H
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