QSize¶

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

Synopsis¶

Functions¶

def __add__ (, s2)
def __div__ (, c)
def __eq__ (, s2)
def __iadd__ (arg__1)
def __idiv__ (c)
def __imul__ (c)
def __isub__ (arg__1)
def __mul__ (, c)
def __mul__ (c)
def __ne__ (, s2)
def __reduce__ ()
def __repr__ ()
def __sub__ (, s2)
def boundedTo (arg__1)
def expandedTo (arg__1)
def grownBy (m)
def height ()
def isEmpty ()
def isNull ()
def isValid ()
def scale (s, mode)
def scale (w, h, mode)
def scaled (s, mode)
def scaled (w, h, mode)
def setHeight (h)
def setWidth (w)
def shrunkBy (m)
def toTuple ()
def transpose ()
def transposed ()
def width ()

Detailed Description¶

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 or equal to 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 QRect

class PySide2.QtCore.QSize¶

PySide2.QtCore.QSize(QSize)

PySide2.QtCore.QSize(w, h)

param w:

int

param QSize:

PySide2.QtCore.QSize

param h:

int

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

See also

isValid()

Constructs a size with the given width and height .

See also

setWidth() setHeight()

PySide2.QtCore.QSize.__reduce__()¶

Return type:: object

PySide2.QtCore.QSize.__repr__()¶

Return type:: object

PySide2.QtCore.QSize.boundedTo(arg__1)¶

Parameters:: arg__1 – PySide2.QtCore.QSize
Return type:: PySide2.QtCore.QSize

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

See also

expandedTo() scale()

PySide2.QtCore.QSize.expandedTo(arg__1)¶

Parameters:: arg__1 – PySide2.QtCore.QSize
Return type:: PySide2.QtCore.QSize

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

See also

boundedTo() scale()

PySide2.QtCore.QSize.grownBy(m)¶

Parameters:: m – PySide2.QtCore.QMargins
Return type:: PySide2.QtCore.QSize

PySide2.QtCore.QSize.height()¶

Return type:: int

Returns the height.

See also

width() setHeight()

PySide2.QtCore.QSize.isEmpty()¶

Return type:: bool

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

See also

isNull() isValid()

PySide2.QtCore.QSize.isNull()¶

Return type:: bool

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

See also

isValid() isEmpty()

PySide2.QtCore.QSize.isValid()¶

Return type:: bool

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

See also

isNull() isEmpty()

PySide2.QtCore.QSize.__ne__(s2)¶

Parameters:: s2 – PySide2.QtCore.QSize
Return type:: bool

PySide2.QtCore.QSize.__mul__(c)¶

Parameters:: c – float
Return type:: PySide2.QtCore.QSize

PySide2.QtCore.QSize.__mul__(c)

Parameters:: c – float
Return type:: PySide2.QtCore.QSize

PySide2.QtCore.QSize.__imul__(c)¶

Parameters:: c – float
Return type:: PySide2.QtCore.QSize

This is an overloaded function.

Multiplies both the width and height by the given factor , and returns a reference to the size.

Note that the result is rounded to the nearest integer.

See also

scale()

PySide2.QtCore.QSize.__add__(s2)¶

Parameters:: s2 – PySide2.QtCore.QSize
Return type:: PySide2.QtCore.QSize

PySide2.QtCore.QSize.__iadd__(arg__1)¶

Parameters:: arg__1 – PySide2.QtCore.QSize
Return type:: PySide2.QtCore.QSize

Adds the given size to this size, and returns a reference to this size. For example:

s = QSize( 3, 7)
r = QSize(-1, 4)
s += r

# s becomes (2,11)

PySide2.QtCore.QSize.__sub__(s2)¶

Parameters:: s2 – PySide2.QtCore.QSize
Return type:: PySide2.QtCore.QSize

PySide2.QtCore.QSize.__isub__(arg__1)¶

Parameters:: arg__1 – PySide2.QtCore.QSize
Return type:: PySide2.QtCore.QSize

Subtracts the given size from this size, and returns a reference to this size. For example:

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

# s becomes (4,3)

PySide2.QtCore.QSize.__div__(c)¶

Parameters:: c – float
Return type:: PySide2.QtCore.QSize

PySide2.QtCore.QSize.__idiv__(c)¶

Parameters:: c – float
Return type:: PySide2.QtCore.QSize

This is an overloaded function.

Divides both the width and height by the given divisor , and returns a reference to the size.

Note that the result is rounded to the nearest integer.

See also

scale()

PySide2.QtCore.QSize.__eq__(s2)¶

Parameters:: s2 – PySide2.QtCore.QSize
Return type:: bool

PySide2.QtCore.QSize.scale(s, mode)¶

Parameters:

s – PySide2.QtCore.QSize
mode – AspectRatioMode

This is an overloaded function.

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

PySide2.QtCore.QSize.scale(w, h, mode)

Parameters:

w – int
h – int
mode – AspectRatioMode

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

If mode is IgnoreAspectRatio , the size is set to (width, height).
If mode is KeepAspectRatio , the current size is scaled to a rectangle as large as possible inside (width, height), preserving the aspect ratio.
If mode is KeepAspectRatioByExpanding , the current size is scaled to a rectangle as small as possible outside (width, height), preserving the aspect ratio.

Example:

t1 = QSize(10, 12)
t1.scale(60, 60, Qt.IgnoreAspectRatio)
# t1 is (60, 60)

t2 = QSize(10, 12)
t2.scale(60, 60, Qt.KeepAspectRatio)
# t2 is (50, 60)

t3 = QSize(10, 12)
t3.scale(60, 60, Qt.KeepAspectRatioByExpanding)
# t3 is (60, 72)