QSizeF¶
The QSizeF
class defines the size of a two-dimensional object using floating 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
toSize
()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.
The QSizeF
class also provides the toSize()
function returning a QSize
copy of this size, constructed by rounding the width and height to the nearest integers.
QSizeF
objects can be streamed as well as compared.
- class PySide6.QtCore.QSizeF¶
PySide6.QtCore.QSizeF(sz)
PySide6.QtCore.QSizeF(QSizeF)
PySide6.QtCore.QSizeF(w, h)
- Parameters
sz –
PySide6.QtCore.QSize
QSizeF –
PySide6.QtCore.QSizeF
w – float
h – float
Constructs an invalid size.
See also
Constructs a size with floating point accuracy from the given size
.
See also
Constructs a size with the given finite width
and height
.
- PySide6.QtCore.QSizeF.__reduce__()¶
- Return type
object
- PySide6.QtCore.QSizeF.__repr__()¶
- Return type
object
- PySide6.QtCore.QSizeF.boundedTo(arg__1)¶
- Parameters
arg__1 –
PySide6.QtCore.QSizeF
- Return type
Returns a size holding the minimum width and height of this size and the given otherSize
.
See also
- PySide6.QtCore.QSizeF.expandedTo(arg__1)¶
- Parameters
arg__1 –
PySide6.QtCore.QSizeF
- Return type
Returns a size holding the maximum width and height of this size and the given otherSize
.
See also
- PySide6.QtCore.QSizeF.grownBy(m)¶
- Parameters
- Return type
- PySide6.QtCore.QSizeF.height()¶
- Return type
float
Returns the height.
See also
- PySide6.QtCore.QSizeF.isEmpty()¶
- Return type
bool
Returns true
if either of the width and height is less than or equal to 0; otherwise returns false
.
- PySide6.QtCore.QSizeF.isNull()¶
- Return type
bool
Returns true
if both the width and height are 0.0 (ignoring the sign); otherwise returns false
.
- PySide6.QtCore.QSizeF.isValid()¶
- Return type
bool
Returns true
if both the width and height are equal to or greater than 0; otherwise returns false
.
- PySide6.QtCore.QSizeF.__ne__(s2)¶
- Parameters
- Return type
bool
- PySide6.QtCore.QSizeF.__mul__(c)¶
- Parameters
c – float
- Return type
- PySide6.QtCore.QSizeF.__mul__(c)
- Parameters
c – float
- Return type
- PySide6.QtCore.QSizeF.__imul__(c)¶
- Parameters
c – float
- Return type
This is an overloaded function.
Multiplies both the width and height by the given finite factor
and returns a reference to the size.
See also
- PySide6.QtCore.QSizeF.__add__(s2)¶
- Parameters
- Return type
- PySide6.QtCore.QSizeF.__iadd__(arg__1)¶
- Parameters
arg__1 –
PySide6.QtCore.QSizeF
- Return type
Adds the given size
to this size and returns a reference to this size. For example:
s = QSizeF( 3, 7) r = QSizeF(-1, 4) s += r # s becomes (2,11)
- PySide6.QtCore.QSizeF.__sub__(s2)¶
- Parameters
- Return type
- PySide6.QtCore.QSizeF.__isub__(arg__1)¶
- Parameters
arg__1 –
PySide6.QtCore.QSizeF
- Return type
Subtracts the given size
from this size and returns a reference to this size. For example:
s = QSizeF( 3, 7) r = QSizeF(-1, 4) s -= r # s becomes (4,3)
- PySide6.QtCore.QSizeF.__div__(c)¶
- Parameters
c – float
- Return type
- PySide6.QtCore.QSizeF.__idiv__(c)¶
- Parameters
c – float
- Return type
This is an overloaded function.
Divides both the width and height by the given divisor
and returns a reference to the size. The divisor
must not be either zero or NaN.
See also
- PySide6.QtCore.QSizeF.__eq__(s2)¶
- Parameters
- Return type
bool
- PySide6.QtCore.QSizeF.scale(s, mode)¶
- Parameters
mode –
AspectRatioMode
This is an overloaded function.
Scales the size to a rectangle with the given size
, according to the specified mode
.
- PySide6.QtCore.QSizeF.scale(w, h, mode)
- Parameters
w – float
h – float
mode –
AspectRatioMode
Scales the size to a rectangle with the given width
and height
, according to the specified mode
.
If
mode
isIgnoreAspectRatio
, the size is set to (width
,height
).If
mode
isKeepAspectRatio
, the current size is scaled to a rectangle as large as possible inside (width
,height
), preserving the aspect ratio.If
mode
isKeepAspectRatioByExpanding
, the current size is scaled to a rectangle as small as possible outside (width
,height
), preserving the aspect ratio.
Example:
t1 = QSizeF(10, 12) t1.scale(60, 60, Qt.IgnoreAspectRatio) # t1 is (60, 60) t2 = QSizeF(10, 12) t2.scale(60, 60, Qt.KeepAspectRatio) # t2 is (50, 60) t3 = QSizeF(10, 12) t3.scale(60, 60, Qt.KeepAspectRatioByExpanding) # t3 is (60, 72)See also
- PySide6.QtCore.QSizeF.scaled(w, h, mode)¶
- Parameters
w – float
h – float
mode –
AspectRatioMode
- Return type
Returns a size scaled to a rectangle with the given width
and height
, according to the specified mode
.
See also
- PySide6.QtCore.QSizeF.scaled(s, mode)
- Parameters
mode –
AspectRatioMode
- Return type
This is an overloaded function.
Returns a size scaled to a rectangle with the given size s
, according to the specified mode
.
- PySide6.QtCore.QSizeF.setHeight(h)¶
- Parameters
h – float
Sets the height to the given finite height
.
See also
height()
rheight()
setWidth()
- PySide6.QtCore.QSizeF.setWidth(w)¶
- Parameters
w – float
Sets the width to the given finite width
.
See also
width()
rwidth()
setHeight()
- PySide6.QtCore.QSizeF.shrunkBy(m)¶
- Parameters
- Return type
- PySide6.QtCore.QSizeF.toSize()¶
- Return type
Returns an integer based copy of this size.
Note that the coordinates in the returned size will be rounded to the nearest integer.
See also
QSizeF()
- PySide6.QtCore.QSizeF.toTuple()¶
- Return type
object
- PySide6.QtCore.QSizeF.transpose()¶
Swaps the width and height values.
See also
- PySide6.QtCore.QSizeF.transposed()¶
- Return type
Returns the size with width and height values swapped.
See also
- PySide6.QtCore.QSizeF.width()¶
- Return type
float
Returns the width.
See also
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