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这里是qrect.h包含文件的所有文本，一字不差。它仅仅用来说明，版权由Trolltech保留。
/****************************************************************************
** $Id: qt/qrect.h 3.0.5 edited Oct 12 2001 $
**
** Definition of QRect class
**
** Created : 931028
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** 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
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QRECT_H
#define QRECT_H
#ifndef QT_H
#include "qsize.h"
#endif // QT_H
#if defined(topLeft)
#error "Macro definition of topLeft conflicts with QRect"
// don't just silently undo people's defines: #undef topLeft
#endif
class Q_EXPORT QRect // rectangle class
{
public:
QRect() { x1 = y1 = 0; x2 = y2 = -1; }
QRect( const QPoint &topleft, const QPoint &bottomright );
QRect( const QPoint &topleft, const QSize &size );
QRect( int left, int top, int width, int height );
bool isNull() const;
bool isEmpty() const;
bool isValid() const;
QRect normalize() const;
int left() const;
int top() const;
int right() const;
int bottom() const;
QCOORD &rLeft();
QCOORD &rTop();
QCOORD &rRight();
QCOORD &rBottom();
int x() const;
int y() const;
void setLeft( int pos );
void setTop( int pos );
void setRight( int pos );
void setBottom( int pos );
void setX( int x );
void setY( int y );
QPoint topLeft() const;
QPoint bottomRight() const;
QPoint topRight() const;
QPoint bottomLeft() const;
QPoint center() const;
void rect( int *x, int *y, int *w, int *h ) const;
void coords( int *x1, int *y1, int *x2, int *y2 ) const;
void moveTopLeft( const QPoint &p );
void moveBottomRight( const QPoint &p );
void moveTopRight( const QPoint &p );
void moveBottomLeft( const QPoint &p );
void moveCenter( const QPoint &p );
void moveBy( int dx, int dy );
void setRect( int x, int y, int w, int h );
void setCoords( int x1, int y1, int x2, int y2 );
void addCoords( int x1, int y1, int x2, int y2 );
QSize size() const;
int width() const;
int height() const;
void setWidth( int w );
void setHeight( int h );
void setSize( const QSize &s );
QRect operator|(const QRect &r) const;
QRect operator&(const QRect &r) const;
QRect& operator|=(const QRect &r);
QRect& operator&=(const QRect &r);
bool contains( const QPoint &p, bool proper=FALSE ) const;
bool contains( int x, int y, bool proper=FALSE ) const;
bool contains( const QRect &r, bool proper=FALSE ) const;
QRect unite( const QRect &r ) const;
QRect intersect( const QRect &r ) const;
bool intersects( const QRect &r ) const;
friend Q_EXPORT bool operator==( const QRect &, const QRect & );
friend Q_EXPORT bool operator!=( const QRect &, const QRect & );
private:
#if defined(Q_OS_MAC)
QCOORD y1;
QCOORD x1;
QCOORD y2;
QCOORD x2;
#else
QCOORD x1;
QCOORD y1;
QCOORD x2;
QCOORD y2;
#endif
};
Q_EXPORT bool operator==( const QRect &, const QRect & );
Q_EXPORT bool operator!=( const QRect &, const QRect & );
/*****************************************************************************
QRect stream functions
*****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_EXPORT QDataStream &operator<<( QDataStream &, const QRect & );
Q_EXPORT QDataStream &operator>>( QDataStream &, QRect & );
#endif
/*****************************************************************************
QRect inline member functions
*****************************************************************************/
inline QRect::QRect( int left, int top, int width, int height )
{
x1 = (QCOORD)left;
y1 = (QCOORD)top;
x2 = (QCOORD)(left+width-1);
y2 = (QCOORD)(top+height-1);
}
inline bool QRect::isNull() const
{ return x2 == x1-1 && y2 == y1-1; }
inline bool QRect::isEmpty() const
{ return x1 > x2 || y1 > y2; }
inline bool QRect::isValid() const
{ return x1 <= x2 && y1 <= y2; }
inline int QRect::left() const
{ return x1; }
inline int QRect::top() const
{ return y1; }
inline int QRect::right() const
{ return x2; }
inline int QRect::bottom() const
{ return y2; }
inline QCOORD &QRect::rLeft()
{ return x1; }
inline QCOORD & QRect::rTop()
{ return y1; }
inline QCOORD & QRect::rRight()
{ return x2; }
inline QCOORD & QRect::rBottom()
{ return y2; }
inline int QRect::x() const
{ return x1; }
inline int QRect::y() const
{ return y1; }
inline void QRect::setLeft( int pos )
{ x1 = (QCOORD)pos; }
inline void QRect::setTop( int pos )
{ y1 = (QCOORD)pos; }
inline void QRect::setRight( int pos )
{ x2 = (QCOORD)pos; }
inline void QRect::setBottom( int pos )
{ y2 = (QCOORD)pos; }
inline void QRect::setX( int x )
{ x1 = (QCOORD)x; }
inline void QRect::setY( int y )
{ y1 = (QCOORD)y; }
inline QPoint QRect::topLeft() const
{ return QPoint(x1, y1); }
inline QPoint QRect::bottomRight() const
{ return QPoint(x2, y2); }
inline QPoint QRect::topRight() const
{ return QPoint(x2, y1); }
inline QPoint QRect::bottomLeft() const
{ return QPoint(x1, y2); }
inline QPoint QRect::center() const
{ return QPoint((x1+x2)/2, (y1+y2)/2); }
inline int QRect::width() const
{ return x2 - x1 + 1; }
inline int QRect::height() const
{ return y2 - y1 + 1; }
inline QSize QRect::size() const
{ return QSize(x2-x1+1, y2-y1+1); }
inline bool QRect::contains( int x, int y, bool proper ) const
{
if ( proper )
return x > x1 && x < x2 &&
y > y1 && y < y2;
else
return x >= x1 && x <= x2 &&
y >= y1 && y <= y2;
}
#endif // QRECT_H
| Copyright © 2002 Trolltech | Trademarks | 译者:Cavendish | Qt 3.0.5版
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