From 7f73eb160e0499750c42224afc34a9432afa1b48 Mon Sep 17 00:00:00 2001
From: Michael Brasser <michael.brasser@nokia.com>
Date: Thu, 2 Jul 2009 10:45:24 +1000
Subject: PropertyAnimation optimization and animation code cleanup.

---
 src/declarative/util/qmlanimation.cpp | 45 ++++++++++++-----------------------
 1 file changed, 15 insertions(+), 30 deletions(-)

diff --git a/src/declarative/util/qmlanimation.cpp b/src/declarative/util/qmlanimation.cpp
index 6ad47f5..c0d6481 100644
--- a/src/declarative/util/qmlanimation.cpp
+++ b/src/declarative/util/qmlanimation.cpp
@@ -58,12 +58,6 @@
 #include <private/qmlstringconverters_p.h>
 #include <private/qvariantanimation_p.h>
 
-/* TODO:
-    Check for any memory leaks
-    easing should be a QEasingCurve-type property
-    All other XXXs and ###s
-*/
-
 QT_BEGIN_NAMESPACE
 
 QEasingCurve stringToCurve(const QString &curve)
@@ -1108,7 +1102,7 @@ void QmlParentChangeActionPrivate::init()
 
 void QmlParentChangeActionPrivate::doAction()
 {
-    //XXX property.write(value);
+    //### property.write(value);
 }
 
 void QmlParentChangeAction::prepare(QmlMetaProperty &p)
@@ -1120,7 +1114,7 @@ void QmlParentChangeAction::prepare(QmlMetaProperty &p)
     else
         d->property = d->userProperty;
 
-    //XXX
+    //###
 }
 
 QAbstractAnimation *QmlParentChangeAction::qtAnimation()
@@ -1239,7 +1233,7 @@ QmlNumberAnimation::~QmlNumberAnimation()
 qreal QmlNumberAnimation::from() const
 {
     Q_D(const QmlPropertyAnimation);
-    return d->from.toDouble();    //### toFloat?
+    return d->from.toDouble();
 }
 
 void QmlNumberAnimation::setFrom(qreal f)
@@ -1259,7 +1253,7 @@ void QmlNumberAnimation::setFrom(qreal f)
 qreal QmlNumberAnimation::to() const
 {
     Q_D(const QmlPropertyAnimation);
-    return d->to.toDouble();    //### toFloat?
+    return d->to.toDouble();
 }
 
 void QmlNumberAnimation::setTo(qreal t)
@@ -1346,7 +1340,7 @@ void QmlSequentialAnimation::transition(QmlStateActions &actions,
         from = d->animations.count() - 1;
     }
     
-    //### needed for Behavior
+    //needed for Behavior
     if (d->userProperty.isValid() && d->propertyName.isEmpty() && !target()) {
         for (int i = 0; i < d->animations.count(); ++i)
             d->animations.at(i)->setTarget(d->userProperty);
@@ -1428,7 +1422,7 @@ void QmlParallelAnimation::transition(QmlStateActions &actions,
 {
     Q_D(QmlAnimationGroup);
 
-     //### needed for Behavior
+     //needed for Behavior
     if (d->userProperty.isValid() && d->propertyName.isEmpty() && !target()) {
         for (int i = 0; i < d->animations.count(); ++i)
             d->animations.at(i)->setTarget(d->userProperty);
@@ -1441,22 +1435,8 @@ void QmlParallelAnimation::transition(QmlStateActions &actions,
 
 QML_DEFINE_TYPE(QmlParallelAnimation,ParallelAnimation)
 
-//### profile and optimize
-QVariant QmlPropertyAnimationPrivate::interpolateVariant(const QVariant &from, const QVariant &to, qreal progress)
-{
-    if (from.userType() != to.userType())
-        return QVariant();
-
-    QVariantAnimation::Interpolator interpolator = QVariantAnimationPrivate::getInterpolator(from.userType());
-    if (interpolator)
-        return interpolator(from.constData(), to.constData(), progress);
-    else
-        return QVariant();
-}
-
 //convert a variant from string type to another animatable type
 //### should use any registered string convertor
-//### profile and optimize
 void QmlPropertyAnimationPrivate::convertVariant(QVariant &variant, QVariant::Type type)
 {
     if (variant.type() != QVariant::String) {
@@ -1743,6 +1723,7 @@ void QmlPropertyAnimationPrivate::valueChanged(qreal r)
         if (!fromIsDefined) {
             from = property.read();
             convertVariant(from, (QVariant::Type)(interpolatorType ? interpolatorType : property.propertyType()));
+            //### check for invalid variant if using property type
         }
         fromSourced = true;
     }
@@ -1752,8 +1733,6 @@ void QmlPropertyAnimationPrivate::valueChanged(qreal r)
     } else {
         if (interpolator)
             property.write(interpolator(from.constData(), to.constData(), r));
-        else
-            property.write(interpolateVariant(from, to, r));    //### optimize
     }
 }
 
@@ -1771,9 +1750,15 @@ void QmlPropertyAnimation::prepare(QmlMetaProperty &p)
     else
         d->property = d->userProperty;
 
-    d->convertVariant(d->to, (QVariant::Type)(d->interpolatorType ? d->interpolatorType : d->property.propertyType()));
+    int propType = d->property.propertyType();
+    d->convertVariant(d->to, (QVariant::Type)(d->interpolatorType ? d->interpolatorType : propType));
     if (d->fromIsDefined)
-        d->convertVariant(d->from, (QVariant::Type)(d->interpolatorType ? d->interpolatorType : d->property.propertyType()));
+        d->convertVariant(d->from, (QVariant::Type)(d->interpolatorType ? d->interpolatorType : propType));
+
+    if (!d->interpolatorType) {
+        //### check for invalid variants
+        d->interpolator = QVariantAnimationPrivate::getInterpolator(propType);
+    }
 
     d->fromSourced = false;
     d->value.QmlTimeLineValue::setValue(0.);
-- 
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