256 lines
7.3 KiB
C++
256 lines
7.3 KiB
C++
/***************************************************************************
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qsize.h
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(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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/****************************************************************************
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** $Id: qt/qsize.h 3.3.4 edited May 27 2003 $
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**
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** Definition of QSize class
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**
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** Created : 931028
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**
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** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be distributed under the terms of the Q Public License
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** as defined by Trolltech AS of Norway and appearing in the file
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** LICENSE.QPL included in the packaging of this file.
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
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** licenses may use this file in accordance with the Qt Commercial License
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** Agreement provided with the Software.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about Qt Commercial License Agreements.
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** See http://www.trolltech.com/qpl/ for QPL licensing information.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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**
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** Contact info@trolltech.com if any conditions of this licensing are
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** not clear to you.
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**
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**********************************************************************/
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#ifndef QSIZE_H
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#define QSIZE_H
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#include "qt.h"
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#include "qpoint.h"
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class Q_EXPORT QSize
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// ### Make QSize inherit Qt in Qt 4.0
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{
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public:
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// ### Move this enum to qnamespace.h in Qt 4.0
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enum ScaleMode {
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ScaleFree,
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ScaleMin,
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ScaleMax
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};
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QSize();
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QSize( int w, int h );
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bool isNull() const;
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bool isEmpty() const;
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bool isValid() const;
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int width() const;
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int height() const;
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void setWidth( int w );
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void setHeight( int h );
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void transpose();
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void scale( int w, int h, ScaleMode mode );
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void scale( const QSize &s, ScaleMode mode );
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QSize expandedTo( const QSize & ) const;
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QSize boundedTo( const QSize & ) const;
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QCOORD &rwidth();
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QCOORD &rheight();
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QSize &operator+=( const QSize & );
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QSize &operator-=( const QSize & );
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QSize &operator*=( int c );
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QSize &operator*=( double c );
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QSize &operator/=( int c );
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QSize &operator/=( double c );
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friend inline bool operator==( const QSize &, const QSize & );
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friend inline bool operator!=( const QSize &, const QSize & );
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friend inline const QSize operator+( const QSize &, const QSize & );
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friend inline const QSize operator-( const QSize &, const QSize & );
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friend inline const QSize operator*( const QSize &, int );
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friend inline const QSize operator*( int, const QSize & );
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friend inline const QSize operator*( const QSize &, double );
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friend inline const QSize operator*( double, const QSize & );
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friend inline const QSize operator/( const QSize &, int );
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friend inline const QSize operator/( const QSize &, double );
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private:
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static void warningDivByZero();
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QCOORD wd;
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QCOORD ht;
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};
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/*****************************************************************************
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QSize stream functions
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*****************************************************************************/
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#ifndef QT_NO_DATASTREAM
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Q_EXPORT QDataStream &operator<<( QDataStream &, const QSize & );
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Q_EXPORT QDataStream &operator>>( QDataStream &, QSize & );
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#endif
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/*****************************************************************************
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QSize inline functions
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*****************************************************************************/
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inline QSize::QSize()
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{ wd = ht = -1; }
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inline QSize::QSize( int w, int h )
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{ wd=(QCOORD)w; ht=(QCOORD)h; }
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inline bool QSize::isNull() const
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{ return wd==0 && ht==0; }
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inline bool QSize::isEmpty() const
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{ return wd<1 || ht<1; }
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inline bool QSize::isValid() const
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{ return wd>=0 && ht>=0; }
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inline int QSize::width() const
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{ return wd; }
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inline int QSize::height() const
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{ return ht; }
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inline void QSize::setWidth( int w )
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{ wd=(QCOORD)w; }
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inline void QSize::setHeight( int h )
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{ ht=(QCOORD)h; }
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inline QCOORD &QSize::rwidth()
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{ return wd; }
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inline QCOORD &QSize::rheight()
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{ return ht; }
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inline QSize &QSize::operator+=( const QSize &s )
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{ wd+=s.wd; ht+=s.ht; return *this; }
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inline QSize &QSize::operator-=( const QSize &s )
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{ wd-=s.wd; ht-=s.ht; return *this; }
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inline QSize &QSize::operator*=( int c )
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{ wd*=(QCOORD)c; ht*=(QCOORD)c; return *this; }
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inline QSize &QSize::operator*=( double c )
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{ wd=(QCOORD)(wd*c); ht=(QCOORD)(ht*c); return *this; }
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inline bool operator==( const QSize &s1, const QSize &s2 )
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{ return s1.wd == s2.wd && s1.ht == s2.ht; }
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inline bool operator!=( const QSize &s1, const QSize &s2 )
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{ return s1.wd != s2.wd || s1.ht != s2.ht; }
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inline const QSize operator+( const QSize & s1, const QSize & s2 )
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{ return QSize(s1.wd+s2.wd, s1.ht+s2.ht); }
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inline const QSize operator-( const QSize &s1, const QSize &s2 )
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{ return QSize(s1.wd-s2.wd, s1.ht-s2.ht); }
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inline const QSize operator*( const QSize &s, int c )
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{ return QSize(s.wd*c, s.ht*c); }
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inline const QSize operator*( int c, const QSize &s )
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{ return QSize(s.wd*c, s.ht*c); }
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inline const QSize operator*( const QSize &s, double c )
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{ return QSize((QCOORD)(s.wd*c), (QCOORD)(s.ht*c)); }
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inline const QSize operator*( double c, const QSize &s )
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{ return QSize((QCOORD)(s.wd*c), (QCOORD)(s.ht*c)); }
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inline QSize &QSize::operator/=( int c )
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{
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#if defined(QT_CHECK_MATH)
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if ( c == 0 )
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warningDivByZero();
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#endif
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wd/=(QCOORD)c; ht/=(QCOORD)c;
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return *this;
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}
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inline QSize &QSize::operator/=( double c )
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{
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#if defined(QT_CHECK_MATH)
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if ( c == 0.0 )
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warningDivByZero();
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#endif
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wd=(QCOORD)(wd/c); ht=(QCOORD)(ht/c);
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return *this;
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}
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inline const QSize operator/( const QSize &s, int c )
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{
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#if defined(QT_CHECK_MATH)
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if ( c == 0 )
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QSize::warningDivByZero();
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#endif
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return QSize(s.wd/c, s.ht/c);
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}
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inline const QSize operator/( const QSize &s, double c )
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{
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#if defined(QT_CHECK_MATH)
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if ( c == 0.0 )
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QSize::warningDivByZero();
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#endif
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return QSize((QCOORD)(s.wd/c), (QCOORD)(s.ht/c));
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}
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inline QSize QSize::expandedTo( const QSize & otherSize ) const
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{
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return QSize( QMAX(wd,otherSize.wd), QMAX(ht,otherSize.ht) );
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}
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inline QSize QSize::boundedTo( const QSize & otherSize ) const
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{
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return QSize( QMIN(wd,otherSize.wd), QMIN(ht,otherSize.ht) );
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}
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#endif // QSIZE_H
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