QConicalGradient

Synopsis

Functions

• def angle ()
• def center ()
• def setAngle (angle)
• def setCenter (center)
• def setCenter (x, y)

Detailed Description

The PySide.QtGui.QConicalGradient class is used in combination with PySide.QtGui.QBrush to specify a conical gradient brush.

Conical gradients interpolate interpolate colors counter-clockwise around a center point.

The colors in a gradient is defined using stop points of the QGradientStop type, i.e. a position and a color. Use the QGradient.setColorAt() or the QGradient.setStops() 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 PySide.QtGui.QGradient , the PySide.QtGui.QConicalGradient class provides the PySide.QtGui.QConicalGradient.angle() and PySide.QtGui.QConicalGradient.center() functions returning the start angle and center of the gradient.

Note that the PySide.QtGui.QGradient.setSpread() function has no effect for conical gradients. The reason is that the conical gradient is closed by definition, i.e. the conical gradient fills the entire circle from 0 - 360 degrees, while the boundary of a radial or a linear gradient can be specified through its radius or final stop points, respectively.

See also

PySide.QtGui.QLinearGradient PySide.QtGui.QRadialGradient The Gradients Demo

class PySide.QtGui.QConicalGradient

class PySide.QtGui.QConicalGradient(QConicalGradient)

class PySide.QtGui.QConicalGradient(center, startAngle)

class PySide.QtGui.QConicalGradient(cx, cy, startAngle)

Parameters:

• center – PySide.QtCore.QPointF
• cx – PySide.QtCore.qreal
• cy – PySide.QtCore.qreal
• startAngle – PySide.QtCore.qreal
• QConicalGradient – PySide.QtGui.QConicalGradient

Constructs a conical with center at (0, 0) starting the interpolation at angle 0.

See also

QGradient.setColorAt() PySide.QtGui.QConicalGradient.setCenter() PySide.QtGui.QConicalGradient.setAngle()

Constructs a conical gradient with the given center , starting the interpolation at the given angle . The angle must be specified in degrees between 0 and 360.

See also

QGradient.setColorAt() QGradient.setStops()

Constructs a conical gradient with the given center (cx , cy ), starting the interpolation at the given angle . The angle must be specified in degrees between 0 and 360.

See also

QGradient.setColorAt() QGradient.setStops()

PySide.QtGui.QConicalGradient.angle()

Return type:PySide.QtCore.qreal

Returns the start angle of the conical gradient in logical coordinates.

See also

PySide.QtGui.QConicalGradient.setAngle() PySide.QtGui.QGradient.stops()

PySide.QtGui.QConicalGradient.center()

Return type:PySide.QtCore.QPointF

Returns the center of the conical gradient in logical coordinates.

See also

PySide.QtGui.QConicalGradient.setCenter() PySide.QtGui.QGradient.stops()

PySide.QtGui.QConicalGradient.setAngle(angle)

Parameters:angle – PySide.QtCore.qreal

Sets angle to be the start angle for this conical gradient in logical coordinates.

See also

PySide.QtGui.QConicalGradient.angle()

PySide.QtGui.QConicalGradient.setCenter(center)

Parameters:center – PySide.QtCore.QPointF

Sets the center of this conical gradient in logical coordinates to center .

See also

PySide.QtGui.QConicalGradient.center()

PySide.QtGui.QConicalGradient.setCenter(x, y)

Parameters:

• x – PySide.QtCore.qreal
• y – PySide.QtCore.qreal

This is an overloaded function.

Sets the center of this conical gradient in logical coordinates to (x , y ).

See also

PySide.QtGui.QConicalGradient.center()