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Diffstat (limited to 'src/quick/util/qquickanimation.cpp')
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diff --git a/src/quick/util/qquickanimation.cpp b/src/quick/util/qquickanimation.cpp new file mode 100644 index 0000000000..51b598b28d --- /dev/null +++ b/src/quick/util/qquickanimation.cpp @@ -0,0 +1,2530 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickanimation_p.h" +#include "qquickanimation_p_p.h" + +#include <private/qquickstatechangescript_p.h> +#include <private/qqmlcontext_p.h> + +#include <qqmlpropertyvaluesource.h> +#include <qqml.h> +#include <qqmlinfo.h> +#include <qqmlexpression.h> +#include <private/qqmlstringconverters_p.h> +#include <private/qqmlglobal_p.h> +#include <private/qqmlmetatype_p.h> +#include <private/qqmlvaluetype_p.h> +#include <private/qqmlproperty_p.h> +#include <private/qqmlengine_p.h> + +#include <qvariant.h> +#include <qcolor.h> +#include <qfile.h> +#include "private/qparallelanimationgroupjob_p.h" +#include "private/qsequentialanimationgroupjob_p.h" +#include <QtCore/qset.h> +#include <QtCore/qrect.h> +#include <QtCore/qpoint.h> +#include <QtCore/qsize.h> +#include <QtCore/qmath.h> + +QT_BEGIN_NAMESPACE + +/*! + \qmlclass Animation QQuickAbstractAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \brief The Animation element is the base of all QML animations. + + The Animation element cannot be used directly in a QML file. It exists + to provide a set of common properties and methods, available across all the + other animation types that inherit from it. Attempting to use the Animation + element directly will result in an error. +*/ + +QQuickAbstractAnimation::QQuickAbstractAnimation(QObject *parent) +: QObject(*(new QQuickAbstractAnimationPrivate), parent) +{ +} + +QQuickAbstractAnimation::~QQuickAbstractAnimation() +{ + Q_D(QQuickAbstractAnimation); + delete d->animationInstance; +} + +QQuickAbstractAnimation::QQuickAbstractAnimation(QQuickAbstractAnimationPrivate &dd, QObject *parent) +: QObject(dd, parent) +{ +} + +QAbstractAnimationJob* QQuickAbstractAnimation::qtAnimation() +{ + Q_D(QQuickAbstractAnimation); + return d->animationInstance; +} + +/*! + \qmlproperty bool QtQuick2::Animation::running + This property holds whether the animation is currently running. + + The \c running property can be set to declaratively control whether or not + an animation is running. The following example will animate a rectangle + whenever the \l MouseArea is pressed. + + \code + Rectangle { + width: 100; height: 100 + NumberAnimation on x { + running: myMouse.pressed + from: 0; to: 100 + } + MouseArea { id: myMouse } + } + \endcode + + Likewise, the \c running property can be read to determine if the animation + is running. In the following example the text element will indicate whether + or not the animation is running. + + \code + NumberAnimation { id: myAnimation } + Text { text: myAnimation.running ? "Animation is running" : "Animation is not running" } + \endcode + + Animations can also be started and stopped imperatively from JavaScript + using the \c start() and \c stop() methods. + + By default, animations are not running. Though, when the animations are assigned to properties, + as property value sources using the \e on syntax, they are set to running by default. +*/ +bool QQuickAbstractAnimation::isRunning() const +{ + Q_D(const QQuickAbstractAnimation); + return d->running; +} + +// the behavior calls this function +void QQuickAbstractAnimation::notifyRunningChanged(bool running) +{ + Q_D(QQuickAbstractAnimation); + if (d->disableUserControl && d->running != running) { + d->running = running; + emit runningChanged(running); + } +} + +//commence is called to start an animation when it is used as a +//simple animation, and not as part of a transition +void QQuickAbstractAnimationPrivate::commence() +{ + Q_Q(QQuickAbstractAnimation); + + QQuickStateActions actions; + QQmlProperties properties; + + QAbstractAnimationJob *oldInstance = animationInstance; + animationInstance = q->transition(actions, properties, QQuickAbstractAnimation::Forward); + if (oldInstance != animationInstance) { + animationInstance->addAnimationChangeListener(this, QAbstractAnimationJob::Completion); + if (oldInstance) + delete oldInstance; + } + animationInstance->start(); + if (animationInstance->isStopped()) { + running = false; + emit q->completed(); + } +} + +QQmlProperty QQuickAbstractAnimationPrivate::createProperty(QObject *obj, const QString &str, QObject *infoObj) +{ + QQmlProperty prop(obj, str, qmlContext(infoObj)); + if (!prop.isValid()) { + qmlInfo(infoObj) << QQuickAbstractAnimation::tr("Cannot animate non-existent property \"%1\"").arg(str); + return QQmlProperty(); + } else if (!prop.isWritable()) { + qmlInfo(infoObj) << QQuickAbstractAnimation::tr("Cannot animate read-only property \"%1\"").arg(str); + return QQmlProperty(); + } + return prop; +} + +void QQuickAbstractAnimation::setRunning(bool r) +{ + Q_D(QQuickAbstractAnimation); + if (!d->componentComplete) { + d->running = r; + if (r == false) + d->avoidPropertyValueSourceStart = true; + else if (!d->registered) { + d->registered = true; + QQmlEnginePrivate *engPriv = QQmlEnginePrivate::get(qmlEngine(this)); + static int finalizedIdx = -1; + if (finalizedIdx < 0) + finalizedIdx = metaObject()->indexOfSlot("componentFinalized()"); + engPriv->registerFinalizeCallback(this, finalizedIdx); + } + return; + } + + if (d->running == r) + return; + + if (d->group || d->disableUserControl) { + qmlInfo(this) << "setRunning() cannot be used on non-root animation nodes."; + return; + } + + d->running = r; + if (d->running) { + bool supressStart = false; + if (d->alwaysRunToEnd && d->loopCount != 1 + && d->animationInstance && d->animationInstance->isRunning()) { + //we've restarted before the final loop finished; restore proper loop count + if (d->loopCount == -1) + d->animationInstance->setLoopCount(d->loopCount); + else + d->animationInstance->setLoopCount(d->animationInstance->currentLoop() + d->loopCount); + supressStart = true; //we want the animation to continue, rather than restart + } + if (!supressStart) + d->commence(); + emit started(); + } else { + if (d->animationInstance) { + if (d->alwaysRunToEnd) { + if (d->loopCount != 1) + d->animationInstance->setLoopCount(d->animationInstance->currentLoop()+1); //finish the current loop + } else { + d->animationInstance->stop(); + } + } + emit completed(); + } + + emit runningChanged(d->running); +} + +/*! + \qmlproperty bool QtQuick2::Animation::paused + This property holds whether the animation is currently paused. + + The \c paused property can be set to declaratively control whether or not + an animation is paused. + + Animations can also be paused and resumed imperatively from JavaScript + using the \c pause() and \c resume() methods. + + By default, animations are not paused. +*/ +bool QQuickAbstractAnimation::isPaused() const +{ + Q_D(const QQuickAbstractAnimation); + return d->paused; +} + +void QQuickAbstractAnimation::setPaused(bool p) +{ + Q_D(QQuickAbstractAnimation); + if (d->paused == p) + return; + + if (d->group || d->disableUserControl) { + qmlInfo(this) << "setPaused() cannot be used on non-root animation nodes."; + return; + } + + d->paused = p; + + if (!d->componentComplete || !d->animationInstance) + return; + + if (d->paused) + d->animationInstance->pause(); + else + d->animationInstance->resume(); + + emit pausedChanged(d->paused); +} + +void QQuickAbstractAnimation::classBegin() +{ + Q_D(QQuickAbstractAnimation); + d->componentComplete = false; +} + +void QQuickAbstractAnimation::componentComplete() +{ + Q_D(QQuickAbstractAnimation); + d->componentComplete = true; +} + +void QQuickAbstractAnimation::componentFinalized() +{ + Q_D(QQuickAbstractAnimation); + if (d->running) { + d->running = false; + setRunning(true); + } + if (d->paused) { + d->paused = false; + setPaused(true); + } +} + +/*! + \qmlproperty bool QtQuick2::Animation::alwaysRunToEnd + This property holds whether the animation should run to completion when it is stopped. + + If this true the animation will complete its current iteration when it + is stopped - either by setting the \c running property to false, or by + calling the \c stop() method. The \c complete() method is not effected + by this value. + + This behavior is most useful when the \c repeat property is set, as the + animation will finish playing normally but not restart. + + By default, the alwaysRunToEnd property is not set. + + \note alwaysRunToEnd has no effect on animations in a Transition. +*/ +bool QQuickAbstractAnimation::alwaysRunToEnd() const +{ + Q_D(const QQuickAbstractAnimation); + return d->alwaysRunToEnd; +} + +void QQuickAbstractAnimation::setAlwaysRunToEnd(bool f) +{ + Q_D(QQuickAbstractAnimation); + if (d->alwaysRunToEnd == f) + return; + + d->alwaysRunToEnd = f; + emit alwaysRunToEndChanged(f); +} + +/*! + \qmlproperty int QtQuick2::Animation::loops + This property holds the number of times the animation should play. + + By default, \c loops is 1: the animation will play through once and then stop. + + If set to Animation.Infinite, the animation will continuously repeat until it is explicitly + stopped - either by setting the \c running property to false, or by calling + the \c stop() method. + + In the following example, the rectangle will spin indefinitely. + + \code + Rectangle { + width: 100; height: 100; color: "green" + RotationAnimation on rotation { + loops: Animation.Infinite + from: 0 + to: 360 + } + } + \endcode +*/ +int QQuickAbstractAnimation::loops() const +{ + Q_D(const QQuickAbstractAnimation); + return d->loopCount; +} + +void QQuickAbstractAnimation::setLoops(int loops) +{ + Q_D(QQuickAbstractAnimation); + if (loops < 0) + loops = -1; + + if (loops == d->loopCount) + return; + + d->loopCount = loops; + emit loopCountChanged(loops); +} + +int QQuickAbstractAnimation::duration() const +{ + Q_D(const QQuickAbstractAnimation); + return d->animationInstance ? d->animationInstance->duration() : 0; +} + +int QQuickAbstractAnimation::currentTime() +{ + Q_D(QQuickAbstractAnimation); + return d->animationInstance ? d->animationInstance->currentLoopTime() : 0; +} + +void QQuickAbstractAnimation::setCurrentTime(int time) +{ + Q_D(QQuickAbstractAnimation); + if (d->animationInstance) + d->animationInstance->setCurrentTime(time); + //TODO save value for start? +} + +QQuickAnimationGroup *QQuickAbstractAnimation::group() const +{ + Q_D(const QQuickAbstractAnimation); + return d->group; +} + +void QQuickAbstractAnimation::setGroup(QQuickAnimationGroup *g) +{ + Q_D(QQuickAbstractAnimation); + if (d->group == g) + return; + if (d->group) + static_cast<QQuickAnimationGroupPrivate *>(d->group->d_func())->animations.removeAll(this); + + d->group = g; + + if (d->group && !static_cast<QQuickAnimationGroupPrivate *>(d->group->d_func())->animations.contains(this)) + static_cast<QQuickAnimationGroupPrivate *>(d->group->d_func())->animations.append(this); + + //if (g) //if removed from a group, then the group should no longer be the parent + setParent(g); +} + +/*! + \qmlmethod QtQuick2::Animation::start() + \brief Starts the animation. + + If the animation is already running, calling this method has no effect. The + \c running property will be true following a call to \c start(). +*/ +void QQuickAbstractAnimation::start() +{ + setRunning(true); +} + +/*! + \qmlmethod QtQuick2::Animation::pause() + \brief Pauses the animation. + + If the animation is already paused, calling this method has no effect. The + \c paused property will be true following a call to \c pause(). +*/ +void QQuickAbstractAnimation::pause() +{ + setPaused(true); +} + +/*! + \qmlmethod QtQuick2::Animation::resume() + \brief Resumes a paused animation. + + If the animation is not paused, calling this method has no effect. The + \c paused property will be false following a call to \c resume(). +*/ +void QQuickAbstractAnimation::resume() +{ + setPaused(false); +} + +/*! + \qmlmethod QtQuick2::Animation::stop() + \brief Stops the animation. + + If the animation is not running, calling this method has no effect. The + \c running property will be false following a call to \c stop(). + + Normally \c stop() stops the animation immediately, and the animation has + no further influence on property values. In this example animation + \code + Rectangle { + NumberAnimation on x { from: 0; to: 100; duration: 500 } + } + \endcode + was stopped at time 250ms, the \c x property will have a value of 50. + + However, if the \c alwaysRunToEnd property is set, the animation will + continue running until it completes and then stop. The \c running property + will still become false immediately. +*/ +void QQuickAbstractAnimation::stop() +{ + setRunning(false); +} + +/*! + \qmlmethod QtQuick2::Animation::restart() + \brief Restarts the animation. + + This is a convenience method, and is equivalent to calling \c stop() and + then \c start(). +*/ +void QQuickAbstractAnimation::restart() +{ + stop(); + start(); +} + +/*! + \qmlmethod QtQuick2::Animation::complete() + \brief Stops the animation, jumping to the final property values. + + If the animation is not running, calling this method has no effect. The + \c running property will be false following a call to \c complete(). + + Unlike \c stop(), \c complete() immediately fast-forwards the animation to + its end. In the following example, + \code + Rectangle { + NumberAnimation on x { from: 0; to: 100; duration: 500 } + } + \endcode + calling \c stop() at time 250ms will result in the \c x property having + a value of 50, while calling \c complete() will set the \c x property to + 100, exactly as though the animation had played the whole way through. +*/ +void QQuickAbstractAnimation::complete() +{ + Q_D(QQuickAbstractAnimation); + if (isRunning() && d->animationInstance) { + d->animationInstance->setCurrentTime(d->animationInstance->duration()); + } +} + +void QQuickAbstractAnimation::setTarget(const QQmlProperty &p) +{ + Q_D(QQuickAbstractAnimation); + d->defaultProperty = p; + + if (!d->avoidPropertyValueSourceStart) + setRunning(true); +} + +/* + we rely on setTarget only being called when used as a value source + so this function allows us to do the same thing as setTarget without + that assumption +*/ +void QQuickAbstractAnimation::setDefaultTarget(const QQmlProperty &p) +{ + Q_D(QQuickAbstractAnimation); + d->defaultProperty = p; +} + +/* + don't allow start/stop/pause/resume to be manually invoked, + because something else (like a Behavior) already has control + over the animation. +*/ +void QQuickAbstractAnimation::setDisableUserControl() +{ + Q_D(QQuickAbstractAnimation); + d->disableUserControl = true; +} + +void QQuickAbstractAnimation::setEnableUserControl() +{ + Q_D(QQuickAbstractAnimation); + d->disableUserControl = false; + +} + +bool QQuickAbstractAnimation::userControlDisabled() const +{ + Q_D(const QQuickAbstractAnimation); + return d->disableUserControl; +} + +QAbstractAnimationJob* QQuickAbstractAnimation::initInstance(QAbstractAnimationJob *animation) +{ + Q_D(QQuickAbstractAnimation); + animation->setLoopCount(d->loopCount); + return animation; +} + +QAbstractAnimationJob* QQuickAbstractAnimation::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_UNUSED(actions); + Q_UNUSED(modified); + Q_UNUSED(direction); + Q_UNUSED(defaultTarget); + return 0; +} + +void QQuickAbstractAnimationPrivate::animationFinished(QAbstractAnimationJob*) +{ + Q_Q(QQuickAbstractAnimation); + q->setRunning(false); + if (alwaysRunToEnd && loopCount != 1) { + //restore the proper loopCount for the next run + animationInstance->setLoopCount(loopCount); + } +} + +/*! + \qmlclass PauseAnimation QQuickPauseAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits Animation + \brief The PauseAnimation element provides a pause for an animation. + + When used in a SequentialAnimation, PauseAnimation is a step when + nothing happens, for a specified duration. + + A 500ms animation sequence, with a 100ms pause between two animations: + \code + SequentialAnimation { + NumberAnimation { ... duration: 200 } + PauseAnimation { duration: 100 } + NumberAnimation { ... duration: 200 } + } + \endcode + + \sa {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ +QQuickPauseAnimation::QQuickPauseAnimation(QObject *parent) +: QQuickAbstractAnimation(*(new QQuickPauseAnimationPrivate), parent) +{ +} + +QQuickPauseAnimation::~QQuickPauseAnimation() +{ +} + +/*! + \qmlproperty int QtQuick2::PauseAnimation::duration + This property holds the duration of the pause in milliseconds + + The default value is 250. +*/ +int QQuickPauseAnimation::duration() const +{ + Q_D(const QQuickPauseAnimation); + return d->duration; +} + +void QQuickPauseAnimation::setDuration(int duration) +{ + if (duration < 0) { + qmlInfo(this) << tr("Cannot set a duration of < 0"); + return; + } + + Q_D(QQuickPauseAnimation); + if (d->duration == duration) + return; + d->duration = duration; + emit durationChanged(duration); +} + +QAbstractAnimationJob* QQuickPauseAnimation::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_D(QQuickPauseAnimation); + Q_UNUSED(actions); + Q_UNUSED(modified); + Q_UNUSED(direction); + Q_UNUSED(defaultTarget); + + return initInstance(new QPauseAnimationJob(d->duration)); +} + +/*! + \qmlclass ColorAnimation QQuickColorAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits PropertyAnimation + \brief The ColorAnimation element animates changes in color values. + + ColorAnimation is a specialized PropertyAnimation that defines an + animation to be applied when a color value changes. + + Here is a ColorAnimation applied to the \c color property of a \l Rectangle + as a property value source. It animates the \c color property's value from + its current value to a value of "red", over 1000 milliseconds: + + \snippet doc/src/snippets/qml/coloranimation.qml 0 + + Like any other animation element, a ColorAnimation can be applied in a + number of ways, including transitions, behaviors and property value + sources. The \l {QML Animation and Transitions} documentation shows a + variety of methods for creating animations. + + For convenience, when a ColorAnimation is used in a \l Transition, it will + animate any \c color properties that have been modified during the state + change. If a \l{PropertyAnimation::}{property} or + \l{PropertyAnimation::}{properties} are explicitly set for the animation, + then those are used instead. + + \sa {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ +QQuickColorAnimation::QQuickColorAnimation(QObject *parent) +: QQuickPropertyAnimation(parent) +{ + Q_D(QQuickPropertyAnimation); + d->interpolatorType = QMetaType::QColor; + d->defaultToInterpolatorType = true; + d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType); +} + +QQuickColorAnimation::~QQuickColorAnimation() +{ +} + +/*! + \qmlproperty color QtQuick2::ColorAnimation::from + This property holds the color value at which the animation should begin. + + For example, the following animation is not applied until a color value + has reached "#c0c0c0": + + \qml + Item { + states: [ + // States are defined here... + ] + + transition: Transition { + ColorAnimation { from: "#c0c0c0"; duration: 2000 } + } + } + \endqml + + If the ColorAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the starting state of the + \l Transition, or the current value of the property at the moment the + \l Behavior is triggered. + + \sa {QML Animation and Transitions} +*/ +QColor QQuickColorAnimation::from() const +{ + Q_D(const QQuickPropertyAnimation); + return d->from.value<QColor>(); +} + +void QQuickColorAnimation::setFrom(const QColor &f) +{ + QQuickPropertyAnimation::setFrom(f); +} + +/*! + \qmlproperty color QtQuick2::ColorAnimation::to + + This property holds the color value at which the animation should end. + + If the ColorAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the end state of the + \l Transition, or the value of the property change that triggered the + \l Behavior. + + \sa {QML Animation and Transitions} +*/ +QColor QQuickColorAnimation::to() const +{ + Q_D(const QQuickPropertyAnimation); + return d->to.value<QColor>(); +} + +void QQuickColorAnimation::setTo(const QColor &t) +{ + QQuickPropertyAnimation::setTo(t); +} + +QActionAnimation::QActionAnimation() + : QAbstractAnimationJob(), animAction(0) +{ +} + +QActionAnimation::QActionAnimation(QAbstractAnimationAction *action) + : QAbstractAnimationJob(), animAction(action) +{ +} + +QActionAnimation::~QActionAnimation() +{ + delete animAction; +} + +int QActionAnimation::duration() const +{ + return 0; +} + +void QActionAnimation::setAnimAction(QAbstractAnimationAction *action) +{ + if (isRunning()) + stop(); + animAction = action; +} + +void QActionAnimation::updateCurrentTime(int) +{ +} + +void QActionAnimation::updateState(State newState, State oldState) +{ + Q_UNUSED(oldState); + + if (newState == Running) { + if (animAction) { + animAction->doAction(); + } + } +} + +/*! + \qmlclass ScriptAction QQuickScriptAction + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits Animation + \brief The ScriptAction element allows scripts to be run during an animation. + + ScriptAction can be used to run a script at a specific point in an animation. + + \qml + SequentialAnimation { + NumberAnimation { + // ... + } + ScriptAction { script: doSomething(); } + NumberAnimation { + // ... + } + } + \endqml + + When used as part of a Transition, you can also target a specific + StateChangeScript to run using the \c scriptName property. + + \snippet doc/src/snippets/qml/states/statechangescript.qml state and transition + + \sa StateChangeScript +*/ +QQuickScriptAction::QQuickScriptAction(QObject *parent) + :QQuickAbstractAnimation(*(new QQuickScriptActionPrivate), parent) +{ +} + +QQuickScriptAction::~QQuickScriptAction() +{ +} + +QQuickScriptActionPrivate::QQuickScriptActionPrivate() + : QQuickAbstractAnimationPrivate(), hasRunScriptScript(false), reversing(false){} + +/*! + \qmlproperty script QtQuick2::ScriptAction::script + This property holds the script to run. +*/ +QQmlScriptString QQuickScriptAction::script() const +{ + Q_D(const QQuickScriptAction); + return d->script; +} + +void QQuickScriptAction::setScript(const QQmlScriptString &script) +{ + Q_D(QQuickScriptAction); + d->script = script; +} + +/*! + \qmlproperty string QtQuick2::ScriptAction::scriptName + This property holds the the name of the StateChangeScript to run. + + This property is only valid when ScriptAction is used as part of a transition. + If both script and scriptName are set, scriptName will be used. + + \note When using scriptName in a reversible transition, the script will only + be run when the transition is being run forwards. +*/ +QString QQuickScriptAction::stateChangeScriptName() const +{ + Q_D(const QQuickScriptAction); + return d->name; +} + +void QQuickScriptAction::setStateChangeScriptName(const QString &name) +{ + Q_D(QQuickScriptAction); + d->name = name; +} + +QAbstractAnimationAction* QQuickScriptActionPrivate::createAction() +{ + return new Proxy(this); +} + +void QQuickScriptActionPrivate::execute() +{ + Q_Q(QQuickScriptAction); + if (hasRunScriptScript && reversing) + return; + + QQmlScriptString scriptStr = hasRunScriptScript ? runScriptScript : script; + + if (!scriptStr.script().isEmpty()) { + QQmlExpression expr(scriptStr); + expr.evaluate(); + if (expr.hasError()) + qmlInfo(q) << expr.error(); + } +} + +QAbstractAnimationJob* QQuickScriptAction::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_D(QQuickScriptAction); + Q_UNUSED(modified); + Q_UNUSED(defaultTarget); + + d->hasRunScriptScript = false; + d->reversing = (direction == Backward); + for (int ii = 0; ii < actions.count(); ++ii) { + QQuickAction &action = actions[ii]; + + if (action.event && action.event->type() == QQuickActionEvent::Script + && static_cast<QQuickStateChangeScript*>(action.event)->name() == d->name) { + d->runScriptScript = static_cast<QQuickStateChangeScript*>(action.event)->script(); + d->hasRunScriptScript = true; + action.actionDone = true; + break; //only match one (names should be unique) + } + } + return initInstance(new QActionAnimation(d->createAction())); +} + +/*! + \qmlclass PropertyAction QQuickPropertyAction + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits Animation + \brief The PropertyAction element allows immediate property changes during animation. + + PropertyAction is used to specify an immediate property change during an + animation. The property change is not animated. + + It is useful for setting non-animated property values during an animation. + + For example, here is a SequentialAnimation that sets the image's + \l {Image::}{smooth} property to \c true, animates the width of the image, + then sets \l {Image::}{smooth} back to \c false: + + \snippet doc/src/snippets/qml/propertyaction.qml standalone + + PropertyAction is also useful for setting the exact point at which a property + change should occur during a \l Transition. For example, if PropertyChanges + was used in a \l State to rotate an item around a particular + \l {Item::}{transformOrigin}, it might be implemented like this: + + \snippet doc/src/snippets/qml/propertyaction.qml transition + + However, with this code, the \c transformOrigin is not set until \e after + the animation, as a \l State is taken to define the values at the \e end of + a transition. The animation would rotate at the default \c transformOrigin, + then jump to \c Item.BottomRight. To fix this, insert a PropertyAction + before the RotationAnimation begins: + + \snippet doc/src/snippets/qml/propertyaction-sequential.qml sequential + + This immediately sets the \c transformOrigin property to the value defined + in the end state of the \l Transition (i.e. the value defined in the + PropertyAction object) so that the rotation animation begins with the + correct transform origin. + + \sa {QML Animation and Transitions}, QtQml +*/ +QQuickPropertyAction::QQuickPropertyAction(QObject *parent) +: QQuickAbstractAnimation(*(new QQuickPropertyActionPrivate), parent) +{ +} + +QQuickPropertyAction::~QQuickPropertyAction() +{ +} + +QObject *QQuickPropertyAction::target() const +{ + Q_D(const QQuickPropertyAction); + return d->target; +} + +void QQuickPropertyAction::setTargetObject(QObject *o) +{ + Q_D(QQuickPropertyAction); + if (d->target == o) + return; + d->target = o; + emit targetChanged(); +} + +QString QQuickPropertyAction::property() const +{ + Q_D(const QQuickPropertyAction); + return d->propertyName; +} + +void QQuickPropertyAction::setProperty(const QString &n) +{ + Q_D(QQuickPropertyAction); + if (d->propertyName == n) + return; + d->propertyName = n; + emit propertyChanged(); +} + +/*! + \qmlproperty Object QtQuick2::PropertyAction::target + \qmlproperty list<Object> QtQuick2::PropertyAction::targets + \qmlproperty string QtQuick2::PropertyAction::property + \qmlproperty string QtQuick2::PropertyAction::properties + + These properties determine the items and their properties that are + affected by this action. + + The details of how these properties are interpreted in different situations + is covered in the \l{PropertyAnimation::properties}{corresponding} PropertyAnimation + documentation. + + \sa exclude +*/ +QString QQuickPropertyAction::properties() const +{ + Q_D(const QQuickPropertyAction); + return d->properties; +} + +void QQuickPropertyAction::setProperties(const QString &p) +{ + Q_D(QQuickPropertyAction); + if (d->properties == p) + return; + d->properties = p; + emit propertiesChanged(p); +} + +QQmlListProperty<QObject> QQuickPropertyAction::targets() +{ + Q_D(QQuickPropertyAction); + return QQmlListProperty<QObject>(this, d->targets); +} + +/*! + \qmlproperty list<Object> QtQuick2::PropertyAction::exclude + This property holds the objects that should not be affected by this action. + + \sa targets +*/ +QQmlListProperty<QObject> QQuickPropertyAction::exclude() +{ + Q_D(QQuickPropertyAction); + return QQmlListProperty<QObject>(this, d->exclude); +} + +/*! + \qmlproperty any QtQuick2::PropertyAction::value + This property holds the value to be set on the property. + + If the PropertyAction is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the end state of the + \l Transition, or the value of the property change that triggered the + \l Behavior. +*/ +QVariant QQuickPropertyAction::value() const +{ + Q_D(const QQuickPropertyAction); + return d->value; +} + +void QQuickPropertyAction::setValue(const QVariant &v) +{ + Q_D(QQuickPropertyAction); + if (d->value.isNull || d->value != v) { + d->value = v; + emit valueChanged(v); + } +} + +QAbstractAnimationJob* QQuickPropertyAction::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_D(QQuickPropertyAction); + Q_UNUSED(direction); + + struct QQuickSetPropertyAnimationAction : public QAbstractAnimationAction + { + QQuickStateActions actions; + virtual void doAction() + { + for (int ii = 0; ii < actions.count(); ++ii) { + const QQuickAction &action = actions.at(ii); + QQmlPropertyPrivate::write(action.property, action.toValue, QQmlPropertyPrivate::BypassInterceptor | QQmlPropertyPrivate::DontRemoveBinding); + } + } + }; + + QStringList props = d->properties.isEmpty() ? QStringList() : d->properties.split(QLatin1Char(',')); + for (int ii = 0; ii < props.count(); ++ii) + props[ii] = props.at(ii).trimmed(); + if (!d->propertyName.isEmpty()) + props << d->propertyName; + + QList<QObject*> targets = d->targets; + if (d->target) + targets.append(d->target); + + bool hasSelectors = !props.isEmpty() || !targets.isEmpty() || !d->exclude.isEmpty(); + + if (d->defaultProperty.isValid() && !hasSelectors) { + props << d->defaultProperty.name(); + targets << d->defaultProperty.object(); + } + + if (defaultTarget && targets.isEmpty()) + targets << defaultTarget; + + QQuickSetPropertyAnimationAction *data = new QQuickSetPropertyAnimationAction; + + bool hasExplicit = false; + //an explicit animation has been specified + if (d->value.isValid()) { + for (int i = 0; i < props.count(); ++i) { + for (int j = 0; j < targets.count(); ++j) { + QQuickAction myAction; + myAction.property = d->createProperty(targets.at(j), props.at(i), this); + if (myAction.property.isValid()) { + myAction.toValue = d->value; + QQuickPropertyAnimationPrivate::convertVariant(myAction.toValue, myAction.property.propertyType()); + data->actions << myAction; + hasExplicit = true; + for (int ii = 0; ii < actions.count(); ++ii) { + QQuickAction &action = actions[ii]; + if (action.property.object() == myAction.property.object() && + myAction.property.name() == action.property.name()) { + modified << action.property; + break; //### any chance there could be multiples? + } + } + } + } + } + } + + if (!hasExplicit) + for (int ii = 0; ii < actions.count(); ++ii) { + QQuickAction &action = actions[ii]; + + QObject *obj = action.property.object(); + QString propertyName = action.property.name(); + QObject *sObj = action.specifiedObject; + QString sPropertyName = action.specifiedProperty; + bool same = (obj == sObj); + + if ((targets.isEmpty() || targets.contains(obj) || (!same && targets.contains(sObj))) && + (!d->exclude.contains(obj)) && (same || (!d->exclude.contains(sObj))) && + (props.contains(propertyName) || (!same && props.contains(sPropertyName)))) { + QQuickAction myAction = action; + + if (d->value.isValid()) + myAction.toValue = d->value; + QQuickPropertyAnimationPrivate::convertVariant(myAction.toValue, myAction.property.propertyType()); + + modified << action.property; + data->actions << myAction; + action.fromValue = myAction.toValue; + } + } + + QActionAnimation *action = new QActionAnimation; + if (data->actions.count()) { + action->setAnimAction(data); + } else { + delete data; + } + return initInstance(action); +} + +/*! + \qmlclass NumberAnimation QQuickNumberAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits PropertyAnimation + \brief The NumberAnimation element animates changes in qreal-type values. + + NumberAnimation is a specialized PropertyAnimation that defines an + animation to be applied when a numerical value changes. + + Here is a NumberAnimation applied to the \c x property of a \l Rectangle + as a property value source. It animates the \c x value from its current + value to a value of 50, over 1000 milliseconds: + + \snippet doc/src/snippets/qml/numberanimation.qml 0 + + Like any other animation element, a NumberAnimation can be applied in a + number of ways, including transitions, behaviors and property value + sources. The \l {QML Animation and Transitions} documentation shows a + variety of methods for creating animations. + + Note that NumberAnimation may not animate smoothly if there are irregular + changes in the number value that it is tracking. If this is the case, use + SmoothedAnimation instead. + + \sa {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ +QQuickNumberAnimation::QQuickNumberAnimation(QObject *parent) +: QQuickPropertyAnimation(parent) +{ + init(); +} + +QQuickNumberAnimation::QQuickNumberAnimation(QQuickPropertyAnimationPrivate &dd, QObject *parent) +: QQuickPropertyAnimation(dd, parent) +{ + init(); +} + +QQuickNumberAnimation::~QQuickNumberAnimation() +{ +} + +void QQuickNumberAnimation::init() +{ + Q_D(QQuickPropertyAnimation); + d->interpolatorType = QMetaType::QReal; + d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType); +} + +/*! + \qmlproperty real QtQuick2::NumberAnimation::from + This property holds the starting value for the animation. + + For example, the following animation is not applied until the \c x value + has reached 100: + + \qml + Item { + states: [ + // ... + ] + + transition: Transition { + NumberAnimation { properties: "x"; from: 100; duration: 200 } + } + } + \endqml + + If the NumberAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the starting state of the + \l Transition, or the current value of the property at the moment the + \l Behavior is triggered. + + \sa {QML Animation and Transitions} +*/ + +qreal QQuickNumberAnimation::from() const +{ + Q_D(const QQuickPropertyAnimation); + return d->from.toReal(); +} + +void QQuickNumberAnimation::setFrom(qreal f) +{ + QQuickPropertyAnimation::setFrom(f); +} + +/*! + \qmlproperty real QtQuick2::NumberAnimation::to + This property holds the end value for the animation. + + If the NumberAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the end state of the + \l Transition, or the value of the property change that triggered the + \l Behavior. + + \sa {QML Animation and Transitions} +*/ +qreal QQuickNumberAnimation::to() const +{ + Q_D(const QQuickPropertyAnimation); + return d->to.toReal(); +} + +void QQuickNumberAnimation::setTo(qreal t) +{ + QQuickPropertyAnimation::setTo(t); +} + + + +/*! + \qmlclass Vector3dAnimation QQuickVector3dAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits PropertyAnimation + \brief The Vector3dAnimation element animates changes in QVector3d values. + + Vector3dAnimation is a specialized PropertyAnimation that defines an + animation to be applied when a Vector3d value changes. + + Like any other animation element, a Vector3dAnimation can be applied in a + number of ways, including transitions, behaviors and property value + sources. The \l {QML Animation and Transitions} documentation shows a + variety of methods for creating animations. + + \sa {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ +QQuickVector3dAnimation::QQuickVector3dAnimation(QObject *parent) +: QQuickPropertyAnimation(parent) +{ + Q_D(QQuickPropertyAnimation); + d->interpolatorType = QMetaType::QVector3D; + d->defaultToInterpolatorType = true; + d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType); +} + +QQuickVector3dAnimation::~QQuickVector3dAnimation() +{ +} + +/*! + \qmlproperty real QtQuick2::Vector3dAnimation::from + This property holds the starting value for the animation. + + If the Vector3dAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the starting state of the + \l Transition, or the current value of the property at the moment the + \l Behavior is triggered. + + \sa {QML Animation and Transitions} +*/ +QVector3D QQuickVector3dAnimation::from() const +{ + Q_D(const QQuickPropertyAnimation); + return d->from.value<QVector3D>(); +} + +void QQuickVector3dAnimation::setFrom(QVector3D f) +{ + QQuickPropertyAnimation::setFrom(f); +} + +/*! + \qmlproperty real QtQuick2::Vector3dAnimation::to + This property holds the end value for the animation. + + If the Vector3dAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the end state of the + \l Transition, or the value of the property change that triggered the + \l Behavior. + + \sa {QML Animation and Transitions} +*/ +QVector3D QQuickVector3dAnimation::to() const +{ + Q_D(const QQuickPropertyAnimation); + return d->to.value<QVector3D>(); +} + +void QQuickVector3dAnimation::setTo(QVector3D t) +{ + QQuickPropertyAnimation::setTo(t); +} + + + +/*! + \qmlclass RotationAnimation QQuickRotationAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits PropertyAnimation + \brief The RotationAnimation element animates changes in rotation values. + + RotationAnimation is a specialized PropertyAnimation that gives control + over the direction of rotation during an animation. + + By default, it rotates in the direction + of the numerical change; a rotation from 0 to 240 will rotate 240 degrees + clockwise, while a rotation from 240 to 0 will rotate 240 degrees + counterclockwise. The \l direction property can be set to specify the + direction in which the rotation should occur. + + In the following example we use RotationAnimation to animate the rotation + between states via the shortest path: + + \snippet doc/src/snippets/qml/rotationanimation.qml 0 + + Notice the RotationAnimation did not need to set a \l target + value. As a convenience, when used in a transition, RotationAnimation will rotate all + properties named "rotation" or "angle". You can override this by providing + your own properties via \l {PropertyAnimation::properties}{properties} or + \l {PropertyAnimation::property}{property}. + + Also, note the \l Rectangle will be rotated around its default + \l {Item::}{transformOrigin} (which is \c Item.Center). To use a different + transform origin, set the origin in the PropertyChanges object and apply + the change at the start of the animation using PropertyAction. See the + PropertyAction documentation for more details. + + Like any other animation element, a RotationAnimation can be applied in a + number of ways, including transitions, behaviors and property value + sources. The \l {QML Animation and Transitions} documentation shows a + variety of methods for creating animations. + + \sa {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ +QVariant _q_interpolateShortestRotation(qreal &f, qreal &t, qreal progress) +{ + qreal newt = t; + qreal diff = t-f; + while(diff > 180.0){ + newt -= 360.0; + diff -= 360.0; + } + while(diff < -180.0){ + newt += 360.0; + diff += 360.0; + } + return QVariant(f + (newt - f) * progress); +} + +QVariant _q_interpolateClockwiseRotation(qreal &f, qreal &t, qreal progress) +{ + qreal newt = t; + qreal diff = t-f; + while(diff < 0.0){ + newt += 360.0; + diff += 360.0; + } + return QVariant(f + (newt - f) * progress); +} + +QVariant _q_interpolateCounterclockwiseRotation(qreal &f, qreal &t, qreal progress) +{ + qreal newt = t; + qreal diff = t-f; + while(diff > 0.0){ + newt -= 360.0; + diff -= 360.0; + } + return QVariant(f + (newt - f) * progress); +} + +QQuickRotationAnimation::QQuickRotationAnimation(QObject *parent) +: QQuickPropertyAnimation(*(new QQuickRotationAnimationPrivate), parent) +{ + Q_D(QQuickRotationAnimation); + d->interpolatorType = QMetaType::QReal; + d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType); + d->defaultProperties = QLatin1String("rotation,angle"); +} + +QQuickRotationAnimation::~QQuickRotationAnimation() +{ +} + +/*! + \qmlproperty real QtQuick2::RotationAnimation::from + This property holds the starting value for the animation. + + For example, the following animation is not applied until the \c angle value + has reached 100: + + \qml + Item { + states: [ + // ... + ] + + transition: Transition { + RotationAnimation { properties: "angle"; from: 100; duration: 2000 } + } + } + \endqml + + If the RotationAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the starting state of the + \l Transition, or the current value of the property at the moment the + \l Behavior is triggered. + + \sa {QML Animation and Transitions} +*/ +qreal QQuickRotationAnimation::from() const +{ + Q_D(const QQuickRotationAnimation); + return d->from.toReal(); +} + +void QQuickRotationAnimation::setFrom(qreal f) +{ + QQuickPropertyAnimation::setFrom(f); +} + +/*! + \qmlproperty real QtQuick2::RotationAnimation::to + This property holds the end value for the animation.. + + If the RotationAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the end state of the + \l Transition, or the value of the property change that triggered the + \l Behavior. + + \sa {QML Animation and Transitions} +*/ +qreal QQuickRotationAnimation::to() const +{ + Q_D(const QQuickRotationAnimation); + return d->to.toReal(); +} + +void QQuickRotationAnimation::setTo(qreal t) +{ + QQuickPropertyAnimation::setTo(t); +} + +/*! + \qmlproperty enumeration QtQuick2::RotationAnimation::direction + This property holds the direction of the rotation. + + Possible values are: + + \list + \o RotationAnimation.Numerical (default) - Rotate by linearly interpolating between the two numbers. + A rotation from 10 to 350 will rotate 340 degrees clockwise. + \o RotationAnimation.Clockwise - Rotate clockwise between the two values + \o RotationAnimation.Counterclockwise - Rotate counterclockwise between the two values + \o RotationAnimation.Shortest - Rotate in the direction that produces the shortest animation path. + A rotation from 10 to 350 will rotate 20 degrees counterclockwise. + \endlist +*/ +QQuickRotationAnimation::RotationDirection QQuickRotationAnimation::direction() const +{ + Q_D(const QQuickRotationAnimation); + return d->direction; +} + +void QQuickRotationAnimation::setDirection(QQuickRotationAnimation::RotationDirection direction) +{ + Q_D(QQuickRotationAnimation); + if (d->direction == direction) + return; + + d->direction = direction; + switch(d->direction) { + case Clockwise: + d->interpolator = reinterpret_cast<QVariantAnimation::Interpolator>(&_q_interpolateClockwiseRotation); + break; + case Counterclockwise: + d->interpolator = reinterpret_cast<QVariantAnimation::Interpolator>(&_q_interpolateCounterclockwiseRotation); + break; + case Shortest: + d->interpolator = reinterpret_cast<QVariantAnimation::Interpolator>(&_q_interpolateShortestRotation); + break; + default: + d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType); + break; + } + emit directionChanged(); +} + + + +QQuickAnimationGroup::QQuickAnimationGroup(QObject *parent) +: QQuickAbstractAnimation(*(new QQuickAnimationGroupPrivate), parent) +{ +} + +QQuickAnimationGroup::QQuickAnimationGroup(QQuickAnimationGroupPrivate &dd, QObject *parent) + : QQuickAbstractAnimation(dd, parent) +{ +} + +void QQuickAnimationGroupPrivate::append_animation(QQmlListProperty<QQuickAbstractAnimation> *list, QQuickAbstractAnimation *a) +{ + QQuickAnimationGroup *q = qobject_cast<QQuickAnimationGroup *>(list->object); + if (q) { + a->setGroup(q); + } +} + +void QQuickAnimationGroupPrivate::clear_animation(QQmlListProperty<QQuickAbstractAnimation> *list) +{ + QQuickAnimationGroup *q = qobject_cast<QQuickAnimationGroup *>(list->object); + if (q) { + while (q->d_func()->animations.count()) { + QQuickAbstractAnimation *firstAnim = q->d_func()->animations.at(0); + firstAnim->setGroup(0); + } + } +} + +QQuickAnimationGroup::~QQuickAnimationGroup() +{ +} + +QQmlListProperty<QQuickAbstractAnimation> QQuickAnimationGroup::animations() +{ + Q_D(QQuickAnimationGroup); + QQmlListProperty<QQuickAbstractAnimation> list(this, d->animations); + list.append = &QQuickAnimationGroupPrivate::append_animation; + list.clear = &QQuickAnimationGroupPrivate::clear_animation; + return list; +} + +/*! + \qmlclass SequentialAnimation QQuickSequentialAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits Animation + \brief The SequentialAnimation element allows animations to be run sequentially. + + The SequentialAnimation and ParallelAnimation elements allow multiple + animations to be run together. Animations defined in a SequentialAnimation + are run one after the other, while animations defined in a ParallelAnimation + are run at the same time. + + The following example runs two number animations in a sequence. The \l Rectangle + animates to a \c x position of 50, then to a \c y position of 50. + + \snippet doc/src/snippets/qml/sequentialanimation.qml 0 + + Animations defined within a \l Transition are automatically run in parallel, + so SequentialAnimation can be used to enclose the animations in a \l Transition + if this is the preferred behavior. + + Like any other animation element, a SequentialAnimation can be applied in a + number of ways, including transitions, behaviors and property value + sources. The \l {QML Animation and Transitions} documentation shows a + variety of methods for creating animations. + + \note Once an animation has been grouped into a SequentialAnimation or + ParallelAnimation, it cannot be individually started and stopped; the + SequentialAnimation or ParallelAnimation must be started and stopped as a group. + + \sa ParallelAnimation, {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ + +QQuickSequentialAnimation::QQuickSequentialAnimation(QObject *parent) : + QQuickAnimationGroup(parent) +{ +} + +QQuickSequentialAnimation::~QQuickSequentialAnimation() +{ +} + +QAbstractAnimationJob* QQuickSequentialAnimation::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_D(QQuickAnimationGroup); + + QSequentialAnimationGroupJob *ag = new QSequentialAnimationGroupJob; + + int inc = 1; + int from = 0; + if (direction == Backward) { + inc = -1; + from = d->animations.count() - 1; + } + + bool valid = d->defaultProperty.isValid(); + QAbstractAnimationJob* anim; + for (int ii = from; ii < d->animations.count() && ii >= 0; ii += inc) { + if (valid) + d->animations.at(ii)->setDefaultTarget(d->defaultProperty); + anim = d->animations.at(ii)->transition(actions, modified, direction, defaultTarget); + inc == -1 ? ag->prependAnimation(anim) : ag->appendAnimation(anim); + } + + return initInstance(ag); +} + + + +/*! + \qmlclass ParallelAnimation QQuickParallelAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits Animation + \brief The ParallelAnimation element allows animations to be run in parallel. + + The SequentialAnimation and ParallelAnimation elements allow multiple + animations to be run together. Animations defined in a SequentialAnimation + are run one after the other, while animations defined in a ParallelAnimation + are run at the same time. + + The following animation runs two number animations in parallel. The \l Rectangle + moves to (50,50) by animating its \c x and \c y properties at the same time. + + \snippet doc/src/snippets/qml/parallelanimation.qml 0 + + Like any other animation element, a ParallelAnimation can be applied in a + number of ways, including transitions, behaviors and property value + sources. The \l {QML Animation and Transitions} documentation shows a + variety of methods for creating animations. + + \note Once an animation has been grouped into a SequentialAnimation or + ParallelAnimation, it cannot be individually started and stopped; the + SequentialAnimation or ParallelAnimation must be started and stopped as a group. + + \sa SequentialAnimation, {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ +QQuickParallelAnimation::QQuickParallelAnimation(QObject *parent) : + QQuickAnimationGroup(parent) +{ +} + +QQuickParallelAnimation::~QQuickParallelAnimation() +{ +} + +QAbstractAnimationJob* QQuickParallelAnimation::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_D(QQuickAnimationGroup); + QParallelAnimationGroupJob *ag = new QParallelAnimationGroupJob; + + bool valid = d->defaultProperty.isValid(); + QAbstractAnimationJob* anim; + for (int ii = 0; ii < d->animations.count(); ++ii) { + if (valid) + d->animations.at(ii)->setDefaultTarget(d->defaultProperty); + anim = d->animations.at(ii)->transition(actions, modified, direction, defaultTarget); + ag->appendAnimation(anim); + } + return initInstance(ag); +} + +//convert a variant from string type to another animatable type +void QQuickPropertyAnimationPrivate::convertVariant(QVariant &variant, int type) +{ + if (variant.userType() != QVariant::String) { + variant.convert((QVariant::Type)type); + return; + } + + switch (type) { + case QVariant::Rect: { + variant.setValue(QQmlStringConverters::rectFFromString(variant.toString()).toRect()); + break; + } + case QVariant::RectF: { + variant.setValue(QQmlStringConverters::rectFFromString(variant.toString())); + break; + } + case QVariant::Point: { + variant.setValue(QQmlStringConverters::pointFFromString(variant.toString()).toPoint()); + break; + } + case QVariant::PointF: { + variant.setValue(QQmlStringConverters::pointFFromString(variant.toString())); + break; + } + case QVariant::Size: { + variant.setValue(QQmlStringConverters::sizeFFromString(variant.toString()).toSize()); + break; + } + case QVariant::SizeF: { + variant.setValue(QQmlStringConverters::sizeFFromString(variant.toString())); + break; + } + case QVariant::Color: { + variant.setValue(QQmlStringConverters::colorFromString(variant.toString())); + break; + } + case QVariant::Vector3D: { + variant.setValue(QQmlStringConverters::vector3DFromString(variant.toString())); + break; + } + default: + if (QQmlValueTypeFactory::isValueType((uint)type)) { + variant.convert((QVariant::Type)type); + } else { + QQmlMetaType::StringConverter converter = QQmlMetaType::customStringConverter(type); + if (converter) + variant = converter(variant.toString()); + } + break; + } +} + +QQuickBulkValueAnimator::QQuickBulkValueAnimator() + : QAbstractAnimationJob(), animValue(0), fromSourced(0), m_duration(250) +{ +} + +QQuickBulkValueAnimator::~QQuickBulkValueAnimator() +{ + delete animValue; +} + +void QQuickBulkValueAnimator::setAnimValue(QQuickBulkValueUpdater *value) +{ + if (isRunning()) + stop(); + animValue = value; +} + +void QQuickBulkValueAnimator::updateCurrentTime(int currentTime) +{ + if (isStopped()) + return; + + const qreal progress = easing.valueForProgress(((m_duration == 0) ? qreal(1) : qreal(currentTime) / qreal(m_duration))); + + if (animValue) + animValue->setValue(progress); +} + +void QQuickBulkValueAnimator::topLevelAnimationLoopChanged() +{ + //check for new from every top-level loop (when the top level animation is started and all subsequent loops) + if (fromSourced) + *fromSourced = false; +} + +/*! + \qmlclass PropertyAnimation QQuickPropertyAnimation + \inqmlmodule QtQuick 2 + \ingroup qml-animation-transition + \inherits Animation + \brief The PropertyAnimation element animates changes in property values. + + PropertyAnimation provides a way to animate changes to a property's value. + + It can be used to define animations in a number of ways: + + \list + \o In a \l Transition + + For example, to animate any objects that have changed their \c x or \c y properties + as a result of a state change, using an \c InOutQuad easing curve: + + \snippet doc/src/snippets/qml/propertyanimation.qml transition + + + \o In a \l Behavior + + For example, to animate all changes to a rectangle's \c x property: + + \snippet doc/src/snippets/qml/propertyanimation.qml behavior + + + \o As a property value source + + For example, to repeatedly animate the rectangle's \c x property: + + \snippet doc/src/snippets/qml/propertyanimation.qml propertyvaluesource + + + \o In a signal handler + + For example, to fade out \c theObject when clicked: + \qml + MouseArea { + anchors.fill: theObject + onClicked: PropertyAnimation { target: theObject; property: "opacity"; to: 0 } + } + \endqml + + \o Standalone + + For example, to animate \c rect's \c width property over 500ms, from its current width to 30: + + \snippet doc/src/snippets/qml/propertyanimation.qml standalone + + \endlist + + Depending on how the animation is used, the set of properties normally used will be + different. For more information see the individual property documentation, as well + as the \l{QML Animation and Transitions} introduction. + + Note that PropertyAnimation inherits the abstract \l Animation element. + This includes additional properties and methods for controlling the animation. + + \sa {QML Animation and Transitions}, {qml/animation/basics}{Animation basics example} +*/ + +QQuickPropertyAnimation::QQuickPropertyAnimation(QObject *parent) +: QQuickAbstractAnimation(*(new QQuickPropertyAnimationPrivate), parent) +{ +} + +QQuickPropertyAnimation::QQuickPropertyAnimation(QQuickPropertyAnimationPrivate &dd, QObject *parent) +: QQuickAbstractAnimation(dd, parent) +{ +} + +QQuickPropertyAnimation::~QQuickPropertyAnimation() +{ +} + +/*! + \qmlproperty int QtQuick2::PropertyAnimation::duration + This property holds the duration of the animation, in milliseconds. + + The default value is 250. +*/ +int QQuickPropertyAnimation::duration() const +{ + Q_D(const QQuickPropertyAnimation); + return d->duration; +} + +void QQuickPropertyAnimation::setDuration(int duration) +{ + if (duration < 0) { + qmlInfo(this) << tr("Cannot set a duration of < 0"); + return; + } + + Q_D(QQuickPropertyAnimation); + if (d->duration == duration) + return; + d->duration = duration; + emit durationChanged(duration); +} + +/*! + \qmlproperty real QtQuick2::PropertyAnimation::from + This property holds the starting value for the animation. + + If the PropertyAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the starting state of the + \l Transition, or the current value of the property at the moment the + \l Behavior is triggered. + + \sa {QML Animation and Transitions} +*/ +QVariant QQuickPropertyAnimation::from() const +{ + Q_D(const QQuickPropertyAnimation); + return d->from; +} + +void QQuickPropertyAnimation::setFrom(const QVariant &f) +{ + Q_D(QQuickPropertyAnimation); + if (d->fromIsDefined && f == d->from) + return; + d->from = f; + d->fromIsDefined = f.isValid(); + emit fromChanged(f); +} + +/*! + \qmlproperty real QtQuick2::PropertyAnimation::to + This property holds the end value for the animation. + + If the PropertyAnimation is defined within a \l Transition or \l Behavior, + this value defaults to the value defined in the end state of the + \l Transition, or the value of the property change that triggered the + \l Behavior. + + \sa {QML Animation and Transitions} +*/ +QVariant QQuickPropertyAnimation::to() const +{ + Q_D(const QQuickPropertyAnimation); + return d->to; +} + +void QQuickPropertyAnimation::setTo(const QVariant &t) +{ + Q_D(QQuickPropertyAnimation); + if (d->toIsDefined && t == d->to) + return; + d->to = t; + d->toIsDefined = t.isValid(); + emit toChanged(t); +} + +/*! + \qmlproperty enumeration QtQuick2::PropertyAnimation::easing.type + \qmlproperty real QtQuick2::PropertyAnimation::easing.amplitude + \qmlproperty real QtQuick2::PropertyAnimation::easing.overshoot + \qmlproperty real QtQuick2::PropertyAnimation::easing.period + \qmlproperty list<real> QtQuick2::PropertyAnimation::easing.bezierCurve + \brief the easing curve used for the animation. + + To specify an easing curve you need to specify at least the type. For some curves you can also specify + amplitude, period and/or overshoot (more details provided after the table). The default easing curve is + \c Easing.Linear. + + \qml + PropertyAnimation { properties: "y"; easing.type: Easing.InOutElastic; easing.amplitude: 2.0; easing.period: 1.5 } + \endqml + + Available types are: + + \table + \row + \o \c Easing.Linear + \o Easing curve for a linear (t) function: velocity is constant. + \o \inlineimage qeasingcurve-linear.png + \row + \o \c Easing.InQuad + \o Easing curve for a quadratic (t^2) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-inquad.png + \row + \o \c Easing.OutQuad + \o Easing curve for a quadratic (t^2) function: decelerating to zero velocity. + \o \inlineimage qeasingcurve-outquad.png + \row + \o \c Easing.InOutQuad + \o Easing curve for a quadratic (t^2) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutquad.png + \row + \o \c Easing.OutInQuad + \o Easing curve for a quadratic (t^2) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinquad.png + \row + \o \c Easing.InCubic + \o Easing curve for a cubic (t^3) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-incubic.png + \row + \o \c Easing.OutCubic + \o Easing curve for a cubic (t^3) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outcubic.png + \row + \o \c Easing.InOutCubic + \o Easing curve for a cubic (t^3) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutcubic.png + \row + \o \c Easing.OutInCubic + \o Easing curve for a cubic (t^3) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outincubic.png + \row + \o \c Easing.InQuart + \o Easing curve for a quartic (t^4) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-inquart.png + \row + \o \c Easing.OutQuart + \o Easing curve for a quartic (t^4) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outquart.png + \row + \o \c Easing.InOutQuart + \o Easing curve for a quartic (t^4) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutquart.png + \row + \o \c Easing.OutInQuart + \o Easing curve for a quartic (t^4) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinquart.png + \row + \o \c Easing.InQuint + \o Easing curve for a quintic (t^5) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-inquint.png + \row + \o \c Easing.OutQuint + \o Easing curve for a quintic (t^5) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outquint.png + \row + \o \c Easing.InOutQuint + \o Easing curve for a quintic (t^5) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutquint.png + \row + \o \c Easing.OutInQuint + \o Easing curve for a quintic (t^5) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinquint.png + \row + \o \c Easing.InSine + \o Easing curve for a sinusoidal (sin(t)) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-insine.png + \row + \o \c Easing.OutSine + \o Easing curve for a sinusoidal (sin(t)) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outsine.png + \row + \o \c Easing.InOutSine + \o Easing curve for a sinusoidal (sin(t)) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutsine.png + \row + \o \c Easing.OutInSine + \o Easing curve for a sinusoidal (sin(t)) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinsine.png + \row + \o \c Easing.InExpo + \o Easing curve for an exponential (2^t) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-inexpo.png + \row + \o \c Easing.OutExpo + \o Easing curve for an exponential (2^t) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outexpo.png + \row + \o \c Easing.InOutExpo + \o Easing curve for an exponential (2^t) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutexpo.png + \row + \o \c Easing.OutInExpo + \o Easing curve for an exponential (2^t) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinexpo.png + \row + \o \c Easing.InCirc + \o Easing curve for a circular (sqrt(1-t^2)) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-incirc.png + \row + \o \c Easing.OutCirc + \o Easing curve for a circular (sqrt(1-t^2)) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outcirc.png + \row + \o \c Easing.InOutCirc + \o Easing curve for a circular (sqrt(1-t^2)) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutcirc.png + \row + \o \c Easing.OutInCirc + \o Easing curve for a circular (sqrt(1-t^2)) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outincirc.png + \row + \o \c Easing.InElastic + \o Easing curve for an elastic (exponentially decaying sine wave) function: accelerating from zero velocity. + \br The peak amplitude can be set with the \e amplitude parameter, and the period of decay by the \e period parameter. + \o \inlineimage qeasingcurve-inelastic.png + \row + \o \c Easing.OutElastic + \o Easing curve for an elastic (exponentially decaying sine wave) function: decelerating from zero velocity. + \br The peak amplitude can be set with the \e amplitude parameter, and the period of decay by the \e period parameter. + \o \inlineimage qeasingcurve-outelastic.png + \row + \o \c Easing.InOutElastic + \o Easing curve for an elastic (exponentially decaying sine wave) function: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutelastic.png + \row + \o \c Easing.OutInElastic + \o Easing curve for an elastic (exponentially decaying sine wave) function: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinelastic.png + \row + \o \c Easing.InBack + \o Easing curve for a back (overshooting cubic function: (s+1)*t^3 - s*t^2) easing in: accelerating from zero velocity. + \o \inlineimage qeasingcurve-inback.png + \row + \o \c Easing.OutBack + \o Easing curve for a back (overshooting cubic function: (s+1)*t^3 - s*t^2) easing out: decelerating to zero velocity. + \o \inlineimage qeasingcurve-outback.png + \row + \o \c Easing.InOutBack + \o Easing curve for a back (overshooting cubic function: (s+1)*t^3 - s*t^2) easing in/out: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutback.png + \row + \o \c Easing.OutInBack + \o Easing curve for a back (overshooting cubic easing: (s+1)*t^3 - s*t^2) easing out/in: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinback.png + \row + \o \c Easing.InBounce + \o Easing curve for a bounce (exponentially decaying parabolic bounce) function: accelerating from zero velocity. + \o \inlineimage qeasingcurve-inbounce.png + \row + \o \c Easing.OutBounce + \o Easing curve for a bounce (exponentially decaying parabolic bounce) function: decelerating from zero velocity. + \o \inlineimage qeasingcurve-outbounce.png + \row + \o \c Easing.InOutBounce + \o Easing curve for a bounce (exponentially decaying parabolic bounce) function easing in/out: acceleration until halfway, then deceleration. + \o \inlineimage qeasingcurve-inoutbounce.png + \row + \o \c Easing.OutInBounce + \o Easing curve for a bounce (exponentially decaying parabolic bounce) function easing out/in: deceleration until halfway, then acceleration. + \o \inlineimage qeasingcurve-outinbounce.png + \row + \o \c Easing.Bezier + \o Custom easing curve defined by the easing.bezierCurve property. + \o + \endtable + + \c easing.amplitude is only applicable for bounce and elastic curves (curves of type + \c Easing.InBounce, \c Easing.OutBounce, \c Easing.InOutBounce, \c Easing.OutInBounce, \c Easing.InElastic, + \c Easing.OutElastic, \c Easing.InOutElastic or \c Easing.OutInElastic). + + \c easing.overshoot is only applicable if \c easing.type is: \c Easing.InBack, \c Easing.OutBack, + \c Easing.InOutBack or \c Easing.OutInBack. + + \c easing.period is only applicable if easing.type is: \c Easing.InElastic, \c Easing.OutElastic, + \c Easing.InOutElastic or \c Easing.OutInElastic. + + \c easing.bezierCurve is only applicable if easing.type is: \c Easing.Bezier. This property is a list<real> containing + groups of three points defining a curve from 0,0 to 1,1 - control1, control2, + end point: [cx1, cy1, cx2, cy2, endx, endy, ...]. The last point must be 1,1. + + See the \l {qml/animation/easing}{easing} example for a demonstration of + the different easing settings. +*/ +QEasingCurve QQuickPropertyAnimation::easing() const +{ + Q_D(const QQuickPropertyAnimation); + return d->easing; +} + +void QQuickPropertyAnimation::setEasing(const QEasingCurve &e) +{ + Q_D(QQuickPropertyAnimation); + if (d->easing == e) + return; + + d->easing = e; + emit easingChanged(e); +} + +QObject *QQuickPropertyAnimation::target() const +{ + Q_D(const QQuickPropertyAnimation); + return d->target; +} + +void QQuickPropertyAnimation::setTargetObject(QObject *o) +{ + Q_D(QQuickPropertyAnimation); + if (d->target == o) + return; + d->target = o; + emit targetChanged(); +} + +QString QQuickPropertyAnimation::property() const +{ + Q_D(const QQuickPropertyAnimation); + return d->propertyName; +} + +void QQuickPropertyAnimation::setProperty(const QString &n) +{ + Q_D(QQuickPropertyAnimation); + if (d->propertyName == n) + return; + d->propertyName = n; + emit propertyChanged(); +} + +QString QQuickPropertyAnimation::properties() const +{ + Q_D(const QQuickPropertyAnimation); + return d->properties; +} + +void QQuickPropertyAnimation::setProperties(const QString &prop) +{ + Q_D(QQuickPropertyAnimation); + if (d->properties == prop) + return; + + d->properties = prop; + emit propertiesChanged(prop); +} + +/*! + \qmlproperty string QtQuick2::PropertyAnimation::properties + \qmlproperty list<Object> QtQuick2::PropertyAnimation::targets + \qmlproperty string QtQuick2::PropertyAnimation::property + \qmlproperty Object QtQuick2::PropertyAnimation::target + + These properties are used as a set to determine which properties should be animated. + The singular and plural forms are functionally identical, e.g. + \qml + NumberAnimation { target: theItem; property: "x"; to: 500 } + \endqml + has the same meaning as + \qml + NumberAnimation { targets: theItem; properties: "x"; to: 500 } + \endqml + The singular forms are slightly optimized, so if you do have only a single target/property + to animate you should try to use them. + + The \c targets property allows multiple targets to be set. For example, this animates the + \c x property of both \c itemA and \c itemB: + + \qml + NumberAnimation { targets: [itemA, itemB]; properties: "x"; to: 500 } + \endqml + + In many cases these properties do not need to be explicitly specified, as they can be + inferred from the animation framework: + + \table 80% + \row + \o Value Source / Behavior + \o When an animation is used as a value source or in a Behavior, the default target and property + name to be animated can both be inferred. + \qml + Rectangle { + id: theRect + width: 100; height: 100 + color: Qt.rgba(0,0,1) + NumberAnimation on x { to: 500; loops: Animation.Infinite } //animate theRect's x property + Behavior on y { NumberAnimation {} } //animate theRect's y property + } + \endqml + \row + \o Transition + \o When used in a transition, a property animation is assumed to match \e all targets + but \e no properties. In practice, that means you need to specify at least the properties + in order for the animation to do anything. + \qml + Rectangle { + id: theRect + width: 100; height: 100 + color: Qt.rgba(0,0,1) + Item { id: uselessItem } + states: State { + name: "state1" + PropertyChanges { target: theRect; x: 200; y: 200; z: 4 } + PropertyChanges { target: uselessItem; x: 10; y: 10; z: 2 } + } + transitions: Transition { + //animate both theRect's and uselessItem's x and y to their final values + NumberAnimation { properties: "x,y" } + + //animate theRect's z to its final value + NumberAnimation { target: theRect; property: "z" } + } + } + \endqml + \row + \o Standalone + \o When an animation is used standalone, both the target and property need to be + explicitly specified. + \qml + Rectangle { + id: theRect + width: 100; height: 100 + color: Qt.rgba(0,0,1) + //need to explicitly specify target and property + NumberAnimation { id: theAnim; target: theRect; property: "x"; to: 500 } + MouseArea { + anchors.fill: parent + onClicked: theAnim.start() + } + } + \endqml + \endtable + + As seen in the above example, properties is specified as a comma-separated string of property names to animate. + + \sa exclude, {QML Animation and Transitions} +*/ +QQmlListProperty<QObject> QQuickPropertyAnimation::targets() +{ + Q_D(QQuickPropertyAnimation); + return QQmlListProperty<QObject>(this, d->targets); +} + +/*! + \qmlproperty list<Object> QtQuick2::PropertyAnimation::exclude + This property holds the items not to be affected by this animation. + \sa PropertyAnimation::targets +*/ +QQmlListProperty<QObject> QQuickPropertyAnimation::exclude() +{ + Q_D(QQuickPropertyAnimation); + return QQmlListProperty<QObject>(this, d->exclude); +} + +void QQuickAnimationPropertyUpdater::setValue(qreal v) +{ + bool deleted = false; + wasDeleted = &deleted; + if (reverse) + v = 1 - v; + for (int ii = 0; ii < actions.count(); ++ii) { + QQuickAction &action = actions[ii]; + + if (v == 1.) { + QQmlPropertyPrivate::write(action.property, action.toValue, QQmlPropertyPrivate::BypassInterceptor | QQmlPropertyPrivate::DontRemoveBinding); + } else { + if (!fromSourced && !fromDefined) { + action.fromValue = action.property.read(); + if (interpolatorType) { + QQuickPropertyAnimationPrivate::convertVariant(action.fromValue, interpolatorType); + } + } + if (!interpolatorType) { + int propType = action.property.propertyType(); + if (!prevInterpolatorType || prevInterpolatorType != propType) { + prevInterpolatorType = propType; + interpolator = QVariantAnimationPrivate::getInterpolator(prevInterpolatorType); + } + } + if (interpolator) + QQmlPropertyPrivate::write(action.property, interpolator(action.fromValue.constData(), action.toValue.constData(), v), QQmlPropertyPrivate::BypassInterceptor | QQmlPropertyPrivate::DontRemoveBinding); + } + if (deleted) + return; + } + wasDeleted = 0; + fromSourced = true; +} + +QQuickStateActions QQuickPropertyAnimation::createTransitionActions(QQuickStateActions &actions, + QQmlProperties &modified, + QObject *defaultTarget) +{ + Q_D(QQuickPropertyAnimation); + QQuickStateActions newActions; + + QStringList props = d->properties.isEmpty() ? QStringList() : d->properties.split(QLatin1Char(',')); + for (int ii = 0; ii < props.count(); ++ii) + props[ii] = props.at(ii).trimmed(); + if (!d->propertyName.isEmpty()) + props << d->propertyName; + + QList<QObject*> targets = d->targets; + if (d->target) + targets.append(d->target); + + bool hasSelectors = !props.isEmpty() || !targets.isEmpty() || !d->exclude.isEmpty(); + bool useType = (props.isEmpty() && d->defaultToInterpolatorType) ? true : false; + + if (d->defaultProperty.isValid() && !hasSelectors) { + props << d->defaultProperty.name(); + targets << d->defaultProperty.object(); + } + + if (defaultTarget && targets.isEmpty()) + targets << defaultTarget; + + if (props.isEmpty() && !d->defaultProperties.isEmpty()) { + props << d->defaultProperties.split(QLatin1Char(',')); + } + + bool hasExplicit = false; + //an explicit animation has been specified + if (d->toIsDefined) { + for (int i = 0; i < props.count(); ++i) { + for (int j = 0; j < targets.count(); ++j) { + QQuickAction myAction; + myAction.property = d->createProperty(targets.at(j), props.at(i), this); + if (myAction.property.isValid()) { + if (d->fromIsDefined) { + myAction.fromValue = d->from; + d->convertVariant(myAction.fromValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType()); + } + myAction.toValue = d->to; + d->convertVariant(myAction.toValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType()); + newActions << myAction; + hasExplicit = true; + for (int ii = 0; ii < actions.count(); ++ii) { + QQuickAction &action = actions[ii]; + if (action.property.object() == myAction.property.object() && + myAction.property.name() == action.property.name()) { + modified << action.property; + break; //### any chance there could be multiples? + } + } + } + } + } + } + + if (!hasExplicit) + for (int ii = 0; ii < actions.count(); ++ii) { + QQuickAction &action = actions[ii]; + + QObject *obj = action.property.object(); + QString propertyName = action.property.name(); + QObject *sObj = action.specifiedObject; + QString sPropertyName = action.specifiedProperty; + bool same = (obj == sObj); + + if ((targets.isEmpty() || targets.contains(obj) || (!same && targets.contains(sObj))) && + (!d->exclude.contains(obj)) && (same || (!d->exclude.contains(sObj))) && + (props.contains(propertyName) || (!same && props.contains(sPropertyName)) + || (useType && action.property.propertyType() == d->interpolatorType))) { + QQuickAction myAction = action; + + if (d->fromIsDefined) + myAction.fromValue = d->from; + else + myAction.fromValue = QVariant(); + if (d->toIsDefined) + myAction.toValue = d->to; + + d->convertVariant(myAction.fromValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType()); + d->convertVariant(myAction.toValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType()); + + modified << action.property; + + newActions << myAction; + action.fromValue = myAction.toValue; + } + } + return newActions; +} + +QAbstractAnimationJob* QQuickPropertyAnimation::transition(QQuickStateActions &actions, + QQmlProperties &modified, + TransitionDirection direction, + QObject *defaultTarget) +{ + Q_D(QQuickPropertyAnimation); + + QQuickStateActions dataActions = createTransitionActions(actions, modified, defaultTarget); + + QQuickBulkValueAnimator *animator = new QQuickBulkValueAnimator; + animator->setDuration(d->duration); + animator->setEasingCurve(d->easing); + + if (!dataActions.isEmpty()) { + QQuickAnimationPropertyUpdater *data = new QQuickAnimationPropertyUpdater; + data->interpolatorType = d->interpolatorType; + data->interpolator = d->interpolator; + data->reverse = direction == Backward ? true : false; + data->fromSourced = false; + data->fromDefined = d->fromIsDefined; + data->actions = dataActions; + animator->setAnimValue(data); + animator->setFromSourcedValue(&data->fromSourced); + d->actions = &data->actions; //remove this? + } + + return initInstance(animator); +} + +QT_END_NAMESPACE |