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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.gui.QGradient
com.trolltech.qt.gui.QLinearGradient
public class QLinearGradient
The QLinearGradient
class is used in combination with QBrush
to specify a linear gradient brush. Linear gradients interpolate colors between start and end points. Outside these points the gradient is either padded, reflected or repeated depending on the currently set spread
method:
![]() | ![]() | ![]() |
PadSpread (default) | ReflectSpread | RepeatSpread |
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 QLinearGradient
class provides the finalStop()
function which returns the final stop point of the gradient, and the start()
function returning the start point of the gradient.
QRadialGradient
, QConicalGradient
, and The Gradients Demo.
Nested Class Summary |
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Nested classes/interfaces inherited from class com.trolltech.qt.gui.QGradient |
---|
QGradient.CoordinateMode, QGradient.Spread, QGradient.Type |
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
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QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9 |
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal |
Field Summary |
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Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
currentSender |
Constructor Summary | |
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QLinearGradient()
Constructs a default linear gradient with interpolation area between (0, 0) and (1, 1). |
|
QLinearGradient(double xStart,
double yStart,
double xFinalStop,
double yFinalStop)
Constructs a linear gradient with interpolation area between (x1, y1) and (x2, y2). |
|
QLinearGradient(QPointF start,
QPointF finalStop)
Constructs a linear gradient with interpolation area between the given start point and finalStop. |
Method Summary | |
---|---|
QLinearGradient |
clone()
This method is reimplemented for internal reasons |
QPointF |
finalStop()
Returns the final stop point of this linear gradient in logical coordinates. |
void |
setFinalStop(double x,
double y)
Sets the final stop point of this linear gradient in logical coordinates to x, y. |
void |
setFinalStop(QPointF stop)
Sets the final stop point of this linear gradient in logical coordinates to stop. |
void |
setStart(double x,
double y)
Sets the start point of this linear gradient in logical coordinates to x, y. |
void |
setStart(QPointF start)
Sets the start point of this linear gradient in logical coordinates to start. |
QPointF |
start()
Returns the start point of this linear gradient in logical coordinates. |
Methods inherited from class com.trolltech.qt.gui.QGradient |
---|
coordinateMode, setColorAt, setCoordinateMode, setSpread, setStops, spread, stops, type |
Methods inherited from class com.trolltech.qt.QtJambiObject |
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dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
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blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread |
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
__qt_signalInitialization |
Methods inherited from class java.lang.Object |
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getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface com.trolltech.qt.QtJambiInterface |
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disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Constructor Detail |
---|
public QLinearGradient()
QGradient::setColorAt()
, setStart()
, and setFinalStop()
.
public QLinearGradient(QPointF start, QPointF finalStop)
Note: The expected parameter values are in pixels.
QGradient::setColorAt()
, and QGradient::setStops()
.
public QLinearGradient(double xStart, double yStart, double xFinalStop, double yFinalStop)
Note: The expected parameter values are in pixels.
QGradient::setColorAt()
, and QGradient::setStops()
.
Method Detail |
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public final QPointF finalStop()
setFinalStop()
, and QGradient::stops()
.
public final void setFinalStop(QPointF stop)
finalStop()
.
public final void setFinalStop(double x, double y)
start()
.
public final void setStart(QPointF start)
start()
.
public final void setStart(double x, double y)
start()
.
public final QPointF start()
setStart()
, and QGradient::stops()
.
public QLinearGradient clone()
clone
in class QGradient
|
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