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Diffstat (limited to 'qtinterface/qt4/Qt/qmatrix.h')
| -rw-r--r-- | qtinterface/qt4/Qt/qmatrix.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/qtinterface/qt4/Qt/qmatrix.h b/qtinterface/qt4/Qt/qmatrix.h new file mode 100644 index 0000000..63a6aa2 --- /dev/null +++ b/qtinterface/qt4/Qt/qmatrix.h @@ -0,0 +1,206 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QMATRIX_H +#define QMATRIX_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_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +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); + QMatrix(const QMatrix &matrix); + + 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; } +#ifdef QT_DEPRECATED + QT_DEPRECATED qreal det() const { return _m11*_m22 - _m12*_m21; } +#endif + + QMatrix inverted(bool *invertible = 0) const; + + bool operator==(const QMatrix &) const; + bool operator!=(const QMatrix &) const; + + QMatrix &operator*=(const QMatrix &); + QMatrix operator*(const QMatrix &o) const; + + QMatrix &operator=(const QMatrix &); + + operator QVariant() const; + +#ifdef QT3_SUPPORT + inline QT3_SUPPORT QMatrix invert(bool *invertible=0) const { return inverted(invertible); } + inline QT3_SUPPORT QRect map(const QRect &r) const { return mapRect(r); } + QT3_SUPPORT QRegion mapToRegion(const QRect &r) const; +#endif + +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); + +// mathematical semantics +Q_GUI_EXPORT_INLINE QPoint operator*(const QPoint &p, const QMatrix &m) +{ return m.map(p); } +Q_GUI_EXPORT_INLINE QPointF operator*(const QPointF &p, const QMatrix &m) +{ return m.map(p); } +Q_GUI_EXPORT_INLINE QLineF operator*(const QLineF &l, const QMatrix &m) +{ return m.map(l); } +Q_GUI_EXPORT_INLINE QLine operator*(const QLine &l, const QMatrix &m) +{ return m.map(l); } +Q_GUI_EXPORT_INLINE QPolygon operator *(const QPolygon &a, const QMatrix &m) +{ return m.map(a); } +Q_GUI_EXPORT_INLINE QPolygonF operator *(const QPolygonF &a, const QMatrix &m) +{ return m.map(a); } +Q_GUI_EXPORT_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 + +#ifdef QT3_SUPPORT +QT_BEGIN_INCLUDE_NAMESPACE +#include <QtGui/qwmatrix.h> +QT_END_INCLUDE_NAMESPACE +#endif + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QMATRIX_H |