From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 10 Jul 2011 15:24:15 -0500 Subject: Add Qt3 development HEAD version --- doc/html/qsize.html | 378 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 378 insertions(+) create mode 100644 doc/html/qsize.html (limited to 'doc/html/qsize.html') diff --git a/doc/html/qsize.html b/doc/html/qsize.html new file mode 100644 index 0000000..5ed73ca --- /dev/null +++ b/doc/html/qsize.html @@ -0,0 +1,378 @@ + + + + + +QSize Class + + + + + + + +
+ +Home + | +All Classes + | +Main Classes + | +Annotated + | +Grouped Classes + | +Functions +

QSize Class Reference

+ +

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

#include <qsize.h> +

List of all member functions. +

Public Members

+ +

Related Functions

+ +

Detailed 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. +

+

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: customlayout/card.cpp and customlayout/flow.cpp. +

int QSize::height () const +

+ +Returns the height. +

See also width(). + +

Examples: movies/main.cpp, qfd/fontdisplayer.cpp, and qfd/qfd.cpp. +

bool QSize::isEmpty () const +

+ +Returns TRUE if the width is less than or equal to 0, or the height is +less than or equal to 0; otherwise returns 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. +

+

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: movies/main.cpp, qfd/fontdisplayer.cpp, and qfd/qfd.cpp. +

Related Functions

+

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. + + +

+This file is part of the Qt toolkit. +Copyright © 1995-2007 +Trolltech. All Rights Reserved.

+ +
Copyright © 2007 +TrolltechTrademarks +
Qt 3.3.8
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