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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
commitbd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree7a520322212d48ebcb9fbe1087e7fca28b76185c /src/kernel/qwmatrix.h
downloadqt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip
Add Qt3 development HEAD version
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+/****************************************************************************
+**
+** Definition of QWMatrix class
+**
+** Created : 941020
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file. Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QWMATRIX_H
+#define QWMATRIX_H
+
+#ifndef QT_H
+#include "qwindowdefs.h"
+#include "qpointarray.h"
+#include "qrect.h"
+#include "qregion.h"
+#endif // QT_H
+
+#ifndef QT_NO_WMATRIX
+
+
+class Q_EXPORT QWMatrix // 2D transform matrix
+{
+public:
+ QWMatrix();
+ QWMatrix( double m11, double m12, double m21, double m22,
+ double dx, double dy );
+
+ void setMatrix( double m11, double m12, double m21, double m22,
+ double dx, double dy );
+
+ double m11() const { return _m11; }
+ double m12() const { return _m12; }
+ double m21() const { return _m21; }
+ double m22() const { return _m22; }
+ double dx() const { return _dx; }
+ double dy() const { return _dy; }
+
+ void map( int x, int y, int *tx, int *ty ) const;
+ void map( double x, double y, double *tx, double *ty ) const;
+ QRect mapRect( const QRect & ) const;
+
+ QPoint map( const QPoint &p ) const { return operator *( p ); }
+ QRect map( const QRect &r ) const { return mapRect ( r ); }
+ QPointArray map( const QPointArray &a ) const { return operator * ( a ); }
+ QRegion map( const QRegion &r ) const { return operator *( r ); }
+ QRegion mapToRegion( const QRect &r ) const { return operator *( r ); }
+ QPointArray mapToPolygon( const QRect &r ) const;
+
+ void reset();
+ bool isIdentity() const;
+
+ QWMatrix &translate( double dx, double dy );
+ QWMatrix &scale( double sx, double sy );
+ QWMatrix &shear( double sh, double sv );
+ QWMatrix &rotate( double a );
+
+ bool isInvertible() const { return (_m11*_m22 - _m12*_m21) != 0; }
+ double det() const { return _m11*_m22 - _m12*_m21; }
+
+ QWMatrix invert( bool * = 0 ) const;
+
+ bool operator==( const QWMatrix & ) const;
+ bool operator!=( const QWMatrix & ) const;
+ QWMatrix &operator*=( const QWMatrix & );
+
+ /* we use matrix multiplication semantics here */
+ QPoint operator * (const QPoint & ) const;
+ QRegion operator * (const QRect & ) const;
+ QRegion operator * (const QRegion & ) const;
+ QPointArray operator * ( const QPointArray &a ) const;
+
+ enum TransformationMode {
+ Points, Areas
+ };
+ static void setTransformationMode( QWMatrix::TransformationMode m );
+ static TransformationMode transformationMode();
+private:
+ double _m11, _m12;
+ double _m21, _m22;
+ double _dx, _dy;
+};
+
+Q_EXPORT QWMatrix operator*( const QWMatrix &, const QWMatrix & );
+
+
+/*****************************************************************************
+ QWMatrix stream functions
+ *****************************************************************************/
+
+Q_EXPORT QDataStream &operator<<( QDataStream &, const QWMatrix & );
+Q_EXPORT QDataStream &operator>>( QDataStream &, QWMatrix & );
+
+
+#endif // QT_NO_WMATRIX
+
+#endif // QWMATRIX_H