diff options
Diffstat (limited to 'src/declarative/util/qdeclarativebehavior.cpp')
-rw-r--r-- | src/declarative/util/qdeclarativebehavior.cpp | 45 |
1 files changed, 18 insertions, 27 deletions
diff --git a/src/declarative/util/qdeclarativebehavior.cpp b/src/declarative/util/qdeclarativebehavior.cpp index 525df30..fadb2ae 100644 --- a/src/declarative/util/qdeclarativebehavior.cpp +++ b/src/declarative/util/qdeclarativebehavior.cpp @@ -75,28 +75,21 @@ public: \since 4.7 \brief The Behavior element allows you to specify a default animation for a property change. - Behaviors provide one way to specify \l{qdeclarativeanimation.html}{animations} in QML. - - In the example below, the rectangle will use a bounce easing curve over 200 millisecond for any changes to its y property: - \code - Rectangle { - width: 20; height: 20 - color: "#00ff00" - y: 200 // initial value - Behavior on y { - NumberAnimation { - easing.type: Easing.OutBounce - easing.amplitude: 100 - duration: 200 - } - } - } - \endcode + A Behavior defines the default animation to be applied whenever a + particular property value changes. + + For example, the following Behavior defines a NumberAnimation to be run + whenever the \l Rectangle's \c width value changes. When the MouseArea + is clicked, the \c width is changed, triggering the behavior's animation: + + \snippet doc/src/snippets/declarative/behavior.qml 0 - Currently only a single Behavior may be specified for a property; - this Behavior can be enabled and disabled via the \l{enabled} property. + To run multiple animations within a Behavior, use ParallelAnimation or + SequentialAnimation. - \sa {declarative/animation/behaviors}{Behavior example}, QtDeclarative + Note that a property cannot have more than one assigned Behavior. + + \sa {Property Behaviors}, {declarative/animation/behaviors}{Behavior example}, QtDeclarative */ @@ -113,7 +106,7 @@ QDeclarativeBehavior::~QDeclarativeBehavior() \qmlproperty Animation Behavior::animation \default - The animation to use when the behavior is triggered. + This property holds the animation to run when the behavior is triggered. */ QDeclarativeAbstractAnimation *QDeclarativeBehavior::animation() @@ -138,10 +131,6 @@ void QDeclarativeBehavior::setAnimation(QDeclarativeAbstractAnimation *animation SIGNAL(stateChanged(QAbstractAnimation::State,QAbstractAnimation::State)), this, SLOT(qtAnimationStateChanged(QAbstractAnimation::State,QAbstractAnimation::State))); - connect(this, - SIGNAL(qtAnimationRunningChanged(bool)), - d->animation, - SLOT(behaviorControlRunningChanged(bool))); } } @@ -150,13 +139,15 @@ void QDeclarativeBehavior::qtAnimationStateChanged(QAbstractAnimation::State new { Q_D(QDeclarativeBehavior); if (!d->blockRunningChanged) - emit qtAnimationRunningChanged(newState == QAbstractAnimation::Running); + d->animation->notifyRunningChanged(newState == QAbstractAnimation::Running); } /*! \qmlproperty bool Behavior::enabled - Whether the Behavior will be triggered when the property it is tracking changes. + + This property holds whether the behavior will be triggered when the tracked + property changes value. By default a Behavior is enabled. */ |