You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
207 lines
6.7 KiB
207 lines
6.7 KiB
/****************************************************************************
|
|
**
|
|
** 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
|