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RedHat 9 (Linux i386) - man page for qsize (redhat section 3qt)

QSize(3qt)									       QSize(3qt)

NAME
       QSize - Defines the size of a two-dimensional object

SYNOPSIS
       #include <qsize.h>

   Public Members
       enum ScaleMode { ScaleFree, ScaleMin, ScaleMax }
       QSize ()
       QSize ( int w, int h )
       bool isNull () const
       bool isEmpty () const
       bool isValid () const
       int width () const
       int height () const
       void setWidth ( int w )
       void setHeight ( int h )
       void transpose ()
       void scale ( int w, int h, ScaleMode mode )
       void scale ( const QSize & s, ScaleMode mode )
       QSize expandedTo ( const QSize & otherSize ) const
       QSize boundedTo ( const QSize & otherSize ) const
       QCOORD & rwidth ()
       QCOORD & rheight ()
       QSize & operator+= ( const QSize & s )
       QSize & operator-= ( const QSize & s )
       QSize & operator*= ( int c )
       QSize & operator*= ( double c )
       QSize & operator/= ( int c )
       QSize & operator/= ( double c )

RELATED FUNCTION DOCUMENTATION
       bool operator== ( const QSize & s1, const QSize & s2 )
       bool operator!= ( const QSize & s1, const QSize & s2 )
       const QSize operator+ ( const QSize & s1, const QSize & s2 )
       const QSize operator- ( const QSize & s1, const QSize & s2 )
       const QSize operator* ( const QSize & s, int c )
       const QSize operator* ( int c, const QSize & s )
       const QSize operator* ( const QSize & s, double c )
       const QSize operator* ( double c, const QSize & s )
       const QSize operator/ ( const QSize & s, int c )
       const QSize operator/ ( const QSize & s, double c )
       QDataStream & operator<< ( QDataStream & s, const QSize & sz )
       QDataStream & operator>> ( QDataStream & s, QSize & sz )

DESCRIPTION
       The QSize class defines the size of a two-dimensional object.

       A size is specified by a width and a height.

       The coordinate type is QCOORD (defined in <qwindowdefs.h> as int). The minimum value of
       QCOORD is QCOORD_MIN (-2147483648) and the maximum value is QCOORD_MAX(2147483647).

       The size can be set in the constructor and changed with setWidth() and setHeight(), or
       using operator+=(), operator-=(), operator*=() and operator/=(), etc. You can swap the
       width and height with transpose(). You can get a size which holds the maximum height and
       width of two sizes using expandedTo(), and the minimum height and width of two sizes using
       boundedTo().

       See also QPoint, QRect, Graphics Classes, and Image Processing Classes.

   Member Type Documentation
QSize::ScaleMode
       This enum type defines the different ways of scaling a size.

       <center>
					    [Image Omitted]

       </center>

       QSize::ScaleFree - The size is scaled freely. The ratio is not preserved.

       QSize::ScaleMin - The size is scaled to a rectangle as large as possible inside a given
       rectangle, preserving the aspect ratio.

       QSize::ScaleMax - The size is scaled to a rectangle as small as possible outside a given
       rectangle, preserving the aspect ratio.

       See also QSize::scale(), QImage::scale(), and QImage::smoothScale().

MEMBER FUNCTION DOCUMENTATION
QSize::QSize ()
       Constructs a size with invalid (negative) width and height.

QSize::QSize ( int w, int h )
       Constructs a size with width w and height h.

QSize QSize::boundedTo ( const QSize & otherSize ) const
       Returns a size with the minimum width and height of this size and otherSize.

QSize QSize::expandedTo ( const QSize & otherSize ) const
       Returns a size with the maximum width and height of this size and otherSize.

       Examples:

int QSize::height () const
       Returns the height.

       See also width().

       Examples:

bool QSize::isEmpty () const
       Returns TRUE if the width is <= 0 or the height is <= 0, otherwise FALSE.

bool QSize::isNull () const
       Returns TRUE if the width is 0 and the height is 0; otherwise returns FALSE.

bool QSize::isValid () const
       Returns TRUE if the width is equal to or greater than 0 and the height is equal to or
       greater than 0; otherwise returns FALSE.

QSize &; QSize::operator*= ( int c )
       Multiplies both the width and height by c and returns a reference to the size.

QSize &; QSize::operator*= ( double c )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Multiplies both the width and height by c and returns a reference to the size.

       Note that the result is truncated.

QSize &; QSize::operator+= ( const QSize & s )
       Adds s to the size and returns a reference to this size.

       Example:

	   QSize s(  3, 7 );
	   QSize r( -1, 4 );
	   s += r;		       // s becomes (2,11)

QSize &; QSize::operator-= ( const QSize & s )
       Subtracts s from the size and returns a reference to this size.

       Example:

	   QSize s(  3, 7 );
	   QSize r( -1, 4 );
	   s -= r;		       // s becomes (4,3)

QSize &; QSize::operator/= ( int c )
       Divides both the width and height by c and returns a reference to the size.

QSize &; QSize::operator/= ( double c )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Divides both the width and height by c and returns a reference to the size.

       Note that the result is truncated.

QCOORD &; QSize::rheight ()
       Returns a reference to the height.

       Using a reference makes it possible to directly manipulate the height.

       Example:

	   QSize s( 100, 10 );
	   s.rheight() += 5;	       // s becomes (100,15)

       See also rwidth().

QCOORD &; QSize::rwidth ()
       Returns a reference to the width.

       Using a reference makes it possible to directly manipulate the width.

       Example:

	   QSize s( 100, 10 );
	   s.rwidth() += 20;	       // s becomes (120,10)

       See also rheight().

void QSize::scale ( int w, int h, ScaleMode mode )
       Scales the size to a rectangle of width w and height h according to the ScaleMode mode.

       If mode is ScaleFree, the size is set to (w, h).

       If mode is ScaleMin, the current size is scaled to a rectangle as large as possible inside
       (w, h), preserving the aspect ratio.

       If mode is ScaleMax, the current size is scaled to a rectangle as small as possible
       outside (w, h), preserving the aspect ratio.

       Example:

	   QSize t1( 10, 12 );
	   t1.scale( 60, 60, QSize::ScaleFree );
	   // t1 is (60, 60)
	   QSize t2( 10, 12 );
	   t2.scale( 60, 60, QSize::ScaleMin );
	   // t2 is (50, 60)
	   QSize t3( 10, 12 );
	   t3.scale( 60, 60, QSize::ScaleMax );
	   // t3 is (60, 72)

void QSize::scale ( const QSize & s, ScaleMode mode )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Equivalent to scale(s.width(), s.height(), mode).

void QSize::setHeight ( int h )
       Sets the height to h.

       See also height() and setWidth().

void QSize::setWidth ( int w )
       Sets the width to w.

       See also width() and setHeight().

void QSize::transpose ()
       Swaps the values of width and height.

int QSize::width () const
       Returns the width.

       See also height().

       Examples:

RELATED FUNCTION DOCUMENTATION
bool operator!= ( const QSize & s1, const QSize & s2 )
       Returns TRUE if s1 and s2 are different; otherwise returns FALSE.

const QSize operator* ( const QSize &; s, int c )
       Multiplies s by c and returns the result.

const QSize operator* ( int c, const QSize &; s )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Multiplies s by c and returns the result.

const QSize operator* ( const QSize &; s, double c )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Multiplies s by c and returns the result.

const QSize operator* ( double c, const QSize &; s )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Multiplies s by c and returns the result.

const QSize operator+ ( const QSize &; s1, const QSize & s2 )
       Returns the sum of s1 and s2; each component is added separately.

const QSize operator- ( const QSize &; s1, const QSize & s2 )
       Returns s2 subtracted from s1; each component is subtracted separately.

const QSize operator/ ( const QSize & s, int c )
       Divides s by c and returns the result.

const QSize operator/ ( const QSize & s, double c )
       This is an overloaded member function, provided for convenience. It behaves essentially
       like the above function.

       Divides s by c and returns the result.

       Note that the result is truncated.

QDataStream &; operator<< ( QDataStream & s, const QSize & sz )
       Writes the size sz to the stream s and returns a reference to the stream.

       See also Format of the QDataStream operators.

bool operator== ( const QSize & s1, const QSize & s2 )
       Returns TRUE if s1 and s2 are equal; otherwise returns FALSE.

QDataStream &; operator>> ( QDataStream & s, QSize & sz )
       Reads the size from the stream s into size sz and returns a reference to the stream.

       See also Format of the QDataStream operators.

SEE ALSO
       http://doc.trolltech.com/qsize.html http://www.trolltech.com/faq/tech.html

COPYRIGHT
       Copyright 1992-2001 Trolltech AS, http://www.trolltech.com.  See the license file included
       in the distribution for a complete license statement.

AUTHOR
       Generated automatically from the source code.

BUGS
       If you find a bug in Qt, please report it as described in
       http://doc.trolltech.com/bughowto.html.	Good bug reports help us to help you. Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at
       $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is
       provided as a convenience for those users who prefer man pages, although this format is
       not officially supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.
       Please include the name of the manual page (qsize.3qt) and the Qt version (3.1.1).

Trolltech AS				 9 December 2002			       QSize(3qt)


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