QRadialGradient¶
The
QRadialGradient
class is used in combination withQBrush
to specify a radial gradient brush. More…
Synopsis¶
Functions¶
def
center
()def
centerRadius
()def
focalPoint
()def
focalRadius
()def
radius
()def
setCenter
(center)def
setCenter
(x, y)def
setCenterRadius
(radius)def
setFocalPoint
(focalPoint)def
setFocalPoint
(x, y)def
setFocalRadius
(radius)def
setRadius
(radius)
Detailed Description¶
Qt supports both simple and extended radial gradients.
Simple radial gradients interpolate colors between a focal point and end points on a circle surrounding it. Extended radial gradients interpolate colors between a focal circle and a center circle. Points outside the cone defined by the two circles will be transparent. For simple radial gradients the focal point is adjusted to lie inside the center circle, whereas the focal point can have any position in an extended radial gradient.
Outside the end points the gradient is either padded, reflected or repeated depending on the currently set
spread
method:
PadSpread
(default)
ReflectSpread
RepeatSpread
The colors in a gradient is defined using stop points of the
QGradientStop
type, i.e. a position and a color. Use thesetColorAt()
or thesetStops()
function to define the stop points. It is the gradient’s complete set of stop points that describes how the gradient area should be filled. If no stop points have been specified, a gradient of black at 0 to white at 1 is used.In addition to the functions inherited from
QGradient
, theQRadialGradient
class provides thecenter()
,focalPoint()
andradius()
functions returning the gradient’s center, focal point and radius respectively.
- class PySide2.QtGui.QRadialGradient¶
PySide2.QtGui.QRadialGradient(center, centerRadius, focalPoint, focalRadius)
PySide2.QtGui.QRadialGradient(center, radius)
PySide2.QtGui.QRadialGradient(center, radius, focalPoint)
PySide2.QtGui.QRadialGradient(QRadialGradient)
PySide2.QtGui.QRadialGradient(cx, cy, centerRadius, fx, fy, focalRadius)
PySide2.QtGui.QRadialGradient(cx, cy, radius)
PySide2.QtGui.QRadialGradient(cx, cy, radius, fx, fy)
- param QRadialGradient:
- param fx:
float
- param fy:
float
- param focalPoint:
- param radius:
float
- param cx:
float
- param cy:
float
- param center:
- param focalRadius:
float
- param centerRadius:
float
Constructs a simple radial gradient with the center and focal point at (0, 0) with a radius of 1.
Constructs an extended radial gradient with the given
center
,centerRadius
,focalPoint
, andfocalRadius
.Constructs a simple radial gradient with the given
center
,radius
and the focal point in the circle center.See also
Constructs an extended radial gradient with the given center (
cx
,cy
), center radius,centerRadius
, focal point, (fx
,fy
), and focal radiusfocalRadius
.Constructs a simple radial gradient with the center at (
cx
,cy
) and the specifiedradius
. The focal point lies at the center of the circle.See also
Constructs a simple radial gradient with the given center (
cx
,cy
),radius
and focal point (fx
,fy
).Note
If the given focal point is outside the circle defined by the center (
cx
,cy
) and theradius
it will be re-adjusted to the intersection between the line from the center to the focal point and the circle.See also
- PySide2.QtGui.QRadialGradient.center()¶
- Return type:
Returns the center of this radial gradient in logical coordinates.
See also
- PySide2.QtGui.QRadialGradient.centerRadius()¶
- Return type:
float
Returns the center radius of this radial gradient in logical coordinates.
See also
- PySide2.QtGui.QRadialGradient.focalPoint()¶
- Return type:
Returns the focal point of this radial gradient in logical coordinates.
See also
- PySide2.QtGui.QRadialGradient.focalRadius()¶
- Return type:
float
Returns the focal radius of this radial gradient in logical coordinates.
See also
- PySide2.QtGui.QRadialGradient.radius()¶
- Return type:
float
Returns the radius of this radial gradient in logical coordinates.
Equivalent to
centerRadius()
See also
- PySide2.QtGui.QRadialGradient.setCenter(center)¶
- Parameters:
center –
PySide2.QtCore.QPointF
Sets the center of this radial gradient in logical coordinates to
center
.See also
- PySide2.QtGui.QRadialGradient.setCenter(x, y)
- Parameters:
x – float
y – float
This is an overloaded function.
Sets the center of this radial gradient in logical coordinates to (
x
,y
).See also
- PySide2.QtGui.QRadialGradient.setCenterRadius(radius)¶
- Parameters:
radius – float
Sets the center radius of this radial gradient in logical coordinates to
radius
See also
- PySide2.QtGui.QRadialGradient.setFocalPoint(focalPoint)¶
- Parameters:
focalPoint –
PySide2.QtCore.QPointF
Sets the focal point of this radial gradient in logical coordinates to
focalPoint
.See also
- PySide2.QtGui.QRadialGradient.setFocalPoint(x, y)
- Parameters:
x – float
y – float
This is an overloaded function.
Sets the focal point of this radial gradient in logical coordinates to (
x
,y
).See also
- PySide2.QtGui.QRadialGradient.setFocalRadius(radius)¶
- Parameters:
radius – float
Sets the focal radius of this radial gradient in logical coordinates to
radius
See also
- PySide2.QtGui.QRadialGradient.setRadius(radius)¶
- Parameters:
radius – float
Sets the radius of this radial gradient in logical coordinates to
radius
Equivalent to
setCenterRadius()
See also
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