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QtCore.QSize Class Reference

The QSize class defines the size of a two-dimensional object using integer point precision. More...

Inheritance diagram for QtCore.QSize:
Collaboration diagram for QtCore.QSize:

Public Member Functions

override bool Equals (object o)
 
override int GetHashCode ()
 
 QSize ()
 
 
 QSize (QSize copy)
 
 QSize (int w, int h)
 
 
virtual void CreateProxy ()
 
new QSize BoundedTo (QSize otherSize)
 
 
new QSize ExpandedTo (QSize otherSize)
 
 
new void Scale (QSize s, Qt.AspectRatioMode mode)
 
 
new void Scale (int w, int h, Qt.AspectRatioMode mode)
 
 
new void Transpose ()
 
 
new void Dispose ()
 

Static Public Member Functions

static bool operator!= (QSize s1, QSize s2)
 
 
static QSize operator* (QSize s, double c)
 
 
static QSize operator+ (QSize s1, QSize s2)
 
 
static QSize operator- (QSize s1, QSize s2)
 
 
static QSize operator/ (QSize s, double c)
 
 
static bool operator== (QSize s1, QSize s2)
 
 

Protected Member Functions

 QSize (System.Type dummy)
 

Protected Attributes

SmokeInvocation interceptor
 

Properties

int Height [get, set]
 
 
int Width [get, set]
 
 
bool IsEmpty [get]
 
 
bool IsNull [get]
 
 
bool IsValid [get]
 
 
int Rheight [get]
 
 
int Rwidth [get]
 
 
virtual System.IntPtr SmokeObject [get, set]
 

Detailed Description

The QSize class defines the size of a two-dimensional object using integer point precision.

A size is specified by a width() and a height(). It can be set in the constructor and changed using the setWidth(), setHeight(), or scale() functions, or using arithmetic operators. A size can also be manipulated directly by retrieving references to the width and height using the rwidth() and rheight() functions. Finally, the width and height can be swapped using the transpose() function.

The isValid() function determines if a size is valid (a valid size has both width and height greater than zero). The isEmpty() function returns true if either of the width and height is less than, or equal to, zero, while the isNull() function returns true only if both the width and the height is zero.

Use the expandedTo() function to retrieve a size which holds the maximum height and width of this size and a given size. Similarly, the boundedTo() function returns a size which holds the minimum height and width of this size and a given size.

QSize objects can be streamed as well as compared.

See also QSizeF, QPoint, and QRect.

Constructor & Destructor Documentation

QtCore.QSize.QSize ( System.Type  dummy)
protected
QtCore.QSize.QSize ( )

Constructs a size with an invalid width and height (i.e., isValid() returns false).

See also isValid().

QtCore.QSize.QSize ( QSize  copy)
QtCore.QSize.QSize ( int  w,
int  h 
)

Constructs a size with the given width and height.

See also setWidth() and setHeight().

Member Function Documentation

new QSize QtCore.QSize.BoundedTo ( QSize  otherSize)

Returns a size holding the minimum width and height of this size and the given otherSize.

See also expandedTo() and scale().

virtual void QtCore.QSize.CreateProxy ( )
virtual
new void QtCore.QSize.Dispose ( )
override bool QtCore.QSize.Equals ( object  o)
new QSize QtCore.QSize.ExpandedTo ( QSize  otherSize)

Returns a size holding the maximum width and height of this size and the given otherSize.

See also boundedTo() and scale().

override int QtCore.QSize.GetHashCode ( )
static bool QtCore.QSize.operator!= ( QSize  s1,
QSize  s2 
)
static

Returns true if s1 and s2 are different; otherwise returns false.

static QSize QtCore.QSize.operator* ( QSize  s,
double  c 
)
static

Multiplies the given size by the given factor, and returns the result rounded to the nearest integer.

See also QSize::scale().

static QSize QtCore.QSize.operator+ ( QSize  s1,
QSize  s2 
)
static

Returns the sum of s1 and s2; each component is added separately.

static QSize QtCore.QSize.operator- ( QSize  s1,
QSize  s2 
)
static

Returns s2 subtracted from s1; each component is subtracted separately.

static QSize QtCore.QSize.operator/ ( QSize  s,
double  c 
)
static

This is an overloaded function.

Divides the given size by the given divisor, and returns the result rounded to the nearest integer.

See also QSize::scale().

static bool QtCore.QSize.operator== ( QSize  s1,
QSize  s2 
)
static

Returns true if s1 and s2 are equal; otherwise returns false.

new void QtCore.QSize.Scale ( QSize  s,
Qt.AspectRatioMode  mode 
)

This is an overloaded function.

Scales the size to a rectangle with the given size, according to the specified mode.

new void QtCore.QSize.Scale ( int  w,
int  h,
Qt.AspectRatioMode  mode 
)

Scales the size to a rectangle with the given width and height, according to the specified mode:

If mode is Qt::IgnoreAspectRatio, the size is set to (width, height).

If mode is Qt::KeepAspectRatio, the current size is scaled to a rectangle as large as possible inside (width, height), preserving the aspect ratio.

If mode is Qt::KeepAspectRatioByExpanding, the current size is scaled to a rectangle as small as possible outside (width, height), preserving the aspect ratio.

Example:

QSize t1(10, 12);

t1.scale(60, 60, Qt::IgnoreAspectRatio);

// t1 is (60, 60)

QSize t2(10, 12);

t2.scale(60, 60, Qt::KeepAspectRatio);

// t2 is (50, 60)

QSize t3(10, 12);

t3.scale(60, 60, Qt::KeepAspectRatioByExpanding);

// t3 is (60, 72)

See also setWidth() and setHeight().

new void QtCore.QSize.Transpose ( )

Swaps the width and height values.

See also setWidth() and setHeight().

Member Data Documentation

SmokeInvocation QtCore.QSize.interceptor
protected

Property Documentation

int QtCore.QSize.Height
getset

Returns the height.

Sets the height to the given height.

bool QtCore.QSize.IsEmpty
get

Returns true if either of the width and height is less than or equal to 0; otherwise returns false.

See also isNull() and isValid().

bool QtCore.QSize.IsNull
get

Returns true if both the width and height is 0; otherwise returns false.

See also isValid() and isEmpty().

bool QtCore.QSize.IsValid
get

Returns true if both the width and height is equal to or greater than 0; otherwise returns false.

See also isNull() and isEmpty().

int QtCore.QSize.Rheight
get

Returns a reference to the height.

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

QSize size(100, 10);

size.rheight() += 5;

// size becomes (100,15)

See also rwidth() and setHeight().

int QtCore.QSize.Rwidth
get

Returns a reference to the width.

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

QSize size(100, 10);

size.rwidth() += 20;

// size becomes (120,10)

See also rheight() and setWidth().

virtual System.IntPtr QtCore.QSize.SmokeObject
getset
int QtCore.QSize.Width
getset

Returns the width.

Sets the width to the given width.