#include <wx/gdicmn.h>

Detailed Description

A wxSize is a useful data structure for graphics operations.

It simply contains integer x and y members.

Note that the width and height stored inside a wxSize object may be negative and that wxSize functions do not perform any check against negative values (this is used to e.g. store the special -1 value in wxDefaultSize instance). See also IsFullySpecified() and SetDefaults() for utility functions regarding the special -1 value.

wxSize is used throughout wxWidgets as well as wxPoint which, although almost equivalent to wxSize, has a different meaning: wxPoint represents a position while wxSize represents the size.

Library: wxCore

Category: Data Structures

Predefined objects/pointers: wxDefaultSize

See also: wxPoint, wxRealPoint

Miscellaneous operators
Sizes can be added to or subtracted from each other or divided or multiplied by a number. Note that binary operators are defined as friend functions inside this class, making them accessible via argument-dependent lookup, but hidden otherwise. Also note that using `double` factor may result in rounding errors, as wxSize always stores `int` coordinates and the result is always rounded.
wxSize &	operator= (const wxSize &sz)

wxSize &	operator+= (const wxSize &sz)

wxSize &	operator-= (const wxSize &sz)

wxSize &	operator/= (int factor)

wxSize &	operator/= (double factor)

wxSize &	operator*= (int factor)

wxSize &	operator*= (double factor)

bool	operator== (const wxSize &s1, const wxSize &s2)

bool	operator!= (const wxSize &s1, const wxSize &s2)

wxSize	operator+ (const wxSize &s1, const wxSize &s2)

wxSize	operator- (const wxSize &s1, const wxSize &s2)

wxSize	operator/ (const wxSize &sz, int factor)

wxSize	operator/ (const wxSize &sz, double factor)

wxSize	operator* (const wxSize &sz, int factor)

wxSize	operator* (const wxSize &sz, double factor)

wxSize	operator* (int factor, const wxSize &sz)

wxSize	operator* (double factor, const wxSize &sz)

Public Member Functions
	wxSize ()
	Initializes this size object with zero width and height. More...

	wxSize (int width, int height)
	Initializes this size object with the given width and height. More...

void	DecTo (const wxSize &size)
	Decrements this object so that both of its dimensions are not greater than the corresponding dimensions of the size. More...

void	DecToIfSpecified (const wxSize &size)
	Decrements this object to be not bigger than the given size ignoring non-specified components. More...

int	GetHeight () const
	Gets the height member. More...

int	GetWidth () const
	Gets the width member. More...

void	IncTo (const wxSize &size)
	Increments this object so that both of its dimensions are not less than the corresponding dimensions of the size. More...

bool	IsAtLeast (const wxSize &size) const
	Returns true if this size is at least as big as the other one in both directions. More...

bool	IsFullySpecified () const
	Returns true if neither of the size object components is equal to -1, which is used as default for the size values in wxWidgets (hence the predefined wxDefaultSize has both of its components equal to -1). More...

wxSize &	Scale (double xscale, double yscale)
	Scales the dimensions of this object by the given factors. More...

void	Set (int width, int height)
	Sets the width and height members. More...

void	SetDefaults (const wxSize &sizeDefault)
	Combine this size object with another one replacing the default (i.e. equal to -1) components of this object with those of the other. More...

void	SetHeight (int height)
	Sets the height. More...

void	SetWidth (int width)
	Sets the width. More...


void	DecBy (const wxPoint &pt)
	Decreases the size in both x and y directions. More...

void	DecBy (const wxSize &size)
	Decreases the size in both x and y directions. More...

void	DecBy (int dx, int dy)
	Decreases the size in both x and y directions. More...

void	DecBy (int d)
	Decreases the size in both x and y directions. More...


void	IncBy (const wxPoint &pt)
	Increases the size in both x and y directions. More...

void	IncBy (const wxSize &size)
	Increases the size in both x and y directions. More...

void	IncBy (int dx, int dy)
	Increases the size in both x and y directions. More...

void	IncBy (int d)
	Increases the size in both x and y directions. More...

Constructor & Destructor Documentation

◆ wxSize() [1/2]

wxSize::wxSize ( )

Initializes this size object with zero width and height.

◆ wxSize() [2/2]

wxSize::wxSize	(	int	width,
		int	height
	)

Initializes this size object with the given width and height.

Member Function Documentation

◆ DecBy() [1/4]

void wxSize::DecBy ( const wxPoint & pt )

Decreases the size in both x and y directions.

See also: IncBy()

◆ DecBy() [2/4]

void wxSize::DecBy ( const wxSize & size )

Decreases the size in both x and y directions.

See also: IncBy()

◆ DecBy() [3/4]

void wxSize::DecBy ( int d )

Decreases the size in both x and y directions.

See also: IncBy()

◆ DecBy() [4/4]

void wxSize::DecBy	(	int	dx,
		int	dy
	)

Decreases the size in both x and y directions.

See also: IncBy()

◆ DecTo()

void wxSize::DecTo ( const wxSize & size )

Decrements this object so that both of its dimensions are not greater than the corresponding dimensions of the size.

See also: IncTo()

◆ DecToIfSpecified()

void wxSize::DecToIfSpecified ( const wxSize & size )

Decrements this object to be not bigger than the given size ignoring non-specified components.

This is similar to DecTo() but doesn't do anything for x or y component if the same component of size is not specified, i.e. set to wxDefaultCoord.

Since: 2.9.5

◆ GetHeight()

int wxSize::GetHeight ( ) const

Gets the height member.

◆ GetWidth()

int wxSize::GetWidth ( ) const

Gets the width member.

◆ IncBy() [1/4]

void wxSize::IncBy ( const wxPoint & pt )

Increases the size in both x and y directions.

See also: DecBy()

◆ IncBy() [2/4]

void wxSize::IncBy ( const wxSize & size )

Increases the size in both x and y directions.

See also: DecBy()

◆ IncBy() [3/4]

void wxSize::IncBy ( int d )

Increases the size in both x and y directions.

See also: DecBy()

◆ IncBy() [4/4]

void wxSize::IncBy	(	int	dx,
		int	dy
	)

Increases the size in both x and y directions.

See also: DecBy()

◆ IncTo()

void wxSize::IncTo ( const wxSize & size )

Increments this object so that both of its dimensions are not less than the corresponding dimensions of the size.

See also: DecTo()

◆ IsAtLeast()

bool wxSize::IsAtLeast ( const wxSize & size ) const

Returns true if this size is at least as big as the other one in both directions.

Since: 3.3.0

◆ IsFullySpecified()

bool wxSize::IsFullySpecified ( ) const

Returns true if neither of the size object components is equal to -1, which is used as default for the size values in wxWidgets (hence the predefined wxDefaultSize has both of its components equal to -1).

This method is typically used before calling SetDefaults().

◆ operator*=() [1/2]

wxSize& wxSize::operator*= ( double factor )

◆ operator*=() [2/2]

wxSize& wxSize::operator*= ( int factor )

◆ operator+=()

wxSize& wxSize::operator+= ( const wxSize & sz )

◆ operator-=()

wxSize& wxSize::operator-= ( const wxSize & sz )

◆ operator/=() [1/2]

wxSize& wxSize::operator/= ( double factor )

◆ operator/=() [2/2]

wxSize& wxSize::operator/= ( int factor )

◆ operator=()

wxSize& wxSize::operator= ( const wxSize & sz )

◆ Scale()

wxSize& wxSize::Scale	(	double	xscale,
		double	yscale
	)

Scales the dimensions of this object by the given factors.

If you want to scale both dimensions by the same factor you can also use operator*=().

Returns: A reference to this object (so that you can concatenate other operations in the same line).

◆ Set()

void wxSize::Set	(	int	width,
		int	height
	)

Sets the width and height members.

◆ SetDefaults()

void wxSize::SetDefaults ( const wxSize & sizeDefault )

Combine this size object with another one replacing the default (i.e. equal to -1) components of this object with those of the other.

It is typically used like this:

if ( !size.IsFullySpecified() )
{
    size.SetDefaults(GetDefaultSize());
}

See also: IsFullySpecified()

◆ SetHeight()

void wxSize::SetHeight ( int height )

Sets the height.

◆ SetWidth()

void wxSize::SetWidth ( int width )

Sets the width.

Friends And Related Function Documentation

◆ operator!=

bool operator!=	(	const wxSize &	s1,
		const wxSize &	s2
	)

friend

◆ operator* [1/4]

wxSize operator*	(	const wxSize &	sz,
		double	factor
	)

friend

◆ operator* [2/4]

wxSize operator*	(	const wxSize &	sz,
		int	factor
	)

friend

◆ operator* [3/4]

wxSize operator*	(	double	factor,
		const wxSize &	sz
	)

friend

◆ operator* [4/4]

wxSize operator*	(	int	factor,
		const wxSize &	sz
	)

friend

◆ operator+

wxSize operator+	(	const wxSize &	s1,
		const wxSize &	s2
	)

friend

◆ operator-

wxSize operator-	(	const wxSize &	s1,
		const wxSize &	s2
	)

friend

◆ operator/ [1/2]

wxSize operator/	(	const wxSize &	sz,
		double	factor
	)

friend

◆ operator/ [2/2]

wxSize operator/	(	const wxSize &	sz,
		int	factor
	)

friend

◆ operator==

bool operator==	(	const wxSize &	s1,
		const wxSize &	s2
	)

friend

Detailed Description

Miscellaneous operators

Public Member Functions

Constructor & Destructor Documentation

◆ wxSize() [1/2]

◆ wxSize() [2/2]

Member Function Documentation

◆ DecBy() [1/4]

◆ DecBy() [2/4]

◆ DecBy() [3/4]

◆ DecBy() [4/4]

◆ DecTo()

◆ DecToIfSpecified()

◆ GetHeight()

◆ GetWidth()

◆ IncBy() [1/4]

◆ IncBy() [2/4]

◆ IncBy() [3/4]

◆ IncBy() [4/4]

◆ IncTo()

◆ IsAtLeast()

◆ IsFullySpecified()

◆ operator*=() [1/2]

◆ operator*=() [2/2]

◆ operator+=()

◆ operator-=()

◆ operator/=() [1/2]

◆ operator/=() [2/2]

◆ operator=()

◆ Scale()

◆ Set()

◆ SetDefaults()

◆ SetHeight()

◆ SetWidth()

Friends And Related Function Documentation

◆ operator!=

◆ operator* [1/4]

◆ operator* [2/4]

◆ operator* [3/4]

◆ operator* [4/4]

◆ operator+

◆ operator-

◆ operator/ [1/2]

◆ operator/ [2/2]

◆ operator==