QtGui.QConicalGradient Class Reference

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

Inheritance diagram for QtGui.QConicalGradient:

Collaboration diagram for QtGui.QConicalGradient:

Public Member Functions
	QConicalGradient ()
	QConicalGradient (QConicalGradient copy)
	QConicalGradient (QPointF center, double startAngle)
	QConicalGradient (double cx, double cy, double startAngle)
override void	CreateProxy ()
new void	SetCenter (double x, double y)
new void	Dispose ()
Public Member Functions inherited from QtGui.QGradient
override bool	Equals (object o)
override int	GetHashCode ()
	QGradient ()
	QGradient (QGradient copy)
new void	SetColorAt (double pos, QColor color)
new QGradient.Type	type ()
new void	Dispose ()

Protected Member Functions
	QConicalGradient (System.Type dummy)
Protected Member Functions inherited from QtGui.QGradient
	QGradient (System.Type dummy)

Properties
new double	Angle [get, set]
new QPointF	Center [get, set]
Properties inherited from QtGui.QGradient
new QGradient.CoordinateMode	coordinateMode [get, set]
new QGradient.InterpolationMode	interpolationMode [get, set]
new QGradient.Spread	spread [get, set]
virtual System.IntPtr	SmokeObject [get, set]
static new QMetaObject	StaticMetaObject [get]

Additional Inherited Members
Public Types inherited from QtGui.QGradient
enum	CoordinateMode { LogicalMode = 0, ObjectBoundingMode = 2, StretchToDeviceMode = 1 }
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enum	InterpolationMode { ColorInterpolation = 0, ComponentInterpolation = 1 }
enum	Spread { PadSpread = 0, ReflectSpread = 1, RepeatSpread = 2 }
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enum	Type { ConicalGradient = 2, LinearGradient = 0, NoGradient = 3, RadialGradient = 1 }
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Static Public Member Functions inherited from QtGui.QGradient
static bool	operator!= (QGradient arg1, QGradient arg2)
static bool	operator== (QGradient arg1, QGradient arg2)
Protected Attributes inherited from QtGui.QGradient
SmokeInvocation	interceptor

Detailed Description

The QConicalGradient class is used in combination with 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 QGradient, the QConicalGradient class provides the angle() and center() functions returning the start angle and center of the gradient.

Note that the 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 QLinearGradient, QRadialGradient, and The Gradients Demo.

Constructor & Destructor Documentation

QtGui.QConicalGradient.QConicalGradient ( System.Type  dummy )

protected

QtGui.QConicalGradient.QConicalGradient

(

)

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

See also QGradient::setColorAt(), setCenter(), and setAngle().

QtGui.QConicalGradient.QConicalGradient

(

QConicalGradient

copy

)

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

See also QGradient::setColorAt(), setCenter(), and setAngle().

QtGui.QConicalGradient.QConicalGradient	(	QPointF	center,
		double	startAngle
	)

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

See also QGradient::setColorAt(), setCenter(), and setAngle().

QtGui.QConicalGradient.QConicalGradient	(	double	cx,
		double	cy,
		double	startAngle
	)

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

See also QGradient::setColorAt(), setCenter(), and setAngle().

Member Function Documentation

override void QtGui.QConicalGradient.CreateProxy ( )

virtual

Reimplemented from QtGui.QGradient.

new void QtGui.QConicalGradient.Dispose

(

)

new void QtGui.QConicalGradient.SetCenter	(	double	x,
		double	y
	)

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

See also center().

Property Documentation

new double QtGui.QConicalGradient.Angle

getset

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

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

This function was introduced in Qt 4.2.

new QPointF QtGui.QConicalGradient.Center

getset

Returns the center of the conical gradient in logical coordinates.

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