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authorMartin Jones <martin.jones@nokia.com>2010-04-30 06:14:20 (GMT)
committerMartin Jones <martin.jones@nokia.com>2010-04-30 06:14:20 (GMT)
commit3011031d0d95d47e7597a81ecbf47004664c4ed9 (patch)
treee2d0b12abe32ed8ce8d567d033b15c2c49ff845c /src/declarative
parent4a2c238a6dfbbdf3bd27a91efc96b747944e767a (diff)
parentdeb92c796c727c6ad0eaf28929cda6d000c1b3c1 (diff)
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Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7
Diffstat (limited to 'src/declarative')
-rw-r--r--src/declarative/graphicsitems/qdeclarativepathview.cpp7
-rw-r--r--src/declarative/qml/qdeclarativecomponent.cpp6
-rw-r--r--src/declarative/qml/qdeclarativeengine.cpp8
-rw-r--r--src/declarative/qml/qdeclarativeobjectscriptclass.cpp2
-rw-r--r--src/declarative/qml/qdeclarativevaluetype.cpp220
-rw-r--r--src/declarative/qml/qdeclarativevaluetype_p.h147
-rw-r--r--src/declarative/util/qdeclarativeconnections.cpp2
-rw-r--r--src/declarative/util/qdeclarativetimeline.cpp13
8 files changed, 394 insertions, 11 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp
index b35d30d..7cb723c 100644
--- a/src/declarative/graphicsitems/qdeclarativepathview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp
@@ -966,7 +966,12 @@ void QDeclarativePathView::mouseReleaseEvent(QGraphicsSceneMouseEvent *)
else
dist = qRound(dist - d->offset) + d->offset;
// Calculate accel required to stop on item boundary
- accel = v2 / (2.0f * qAbs(dist));
+ if (dist <= 0.) {
+ dist = 0.;
+ accel = 0.;
+ } else {
+ accel = v2 / (2.0f * qAbs(dist));
+ }
}
d->moveOffset.setValue(d->offset);
d->tl.accel(d->moveOffset, velocity, accel, dist);
diff --git a/src/declarative/qml/qdeclarativecomponent.cpp b/src/declarative/qml/qdeclarativecomponent.cpp
index 6ebf470..3ca0707 100644
--- a/src/declarative/qml/qdeclarativecomponent.cpp
+++ b/src/declarative/qml/qdeclarativecomponent.cpp
@@ -547,7 +547,11 @@ QDeclarativeComponent::QDeclarativeComponent(QDeclarativeComponentPrivate &dd, Q
\qmlmethod object Component::createObject()
Returns an object instance from this component, or null if object creation fails.
- The object will be created in the same context as the component was created in.
+ The object will be created in the same context as the one in which the component
+ was created.
+
+ Note that if the returned object is to be displayed, its \c parent must be set to
+ an existing item in a scene, or else the object will not be visible.
*/
/*!
diff --git a/src/declarative/qml/qdeclarativeengine.cpp b/src/declarative/qml/qdeclarativeengine.cpp
index 3f4a735..4d23e8f 100644
--- a/src/declarative/qml/qdeclarativeengine.cpp
+++ b/src/declarative/qml/qdeclarativeengine.cpp
@@ -1075,7 +1075,7 @@ QScriptValue QDeclarativeEnginePrivate::vector(QScriptContext *ctxt, QScriptEngi
qsreal x = ctxt->argument(0).toNumber();
qsreal y = ctxt->argument(1).toNumber();
qsreal z = ctxt->argument(2).toNumber();
- return engine->newVariant(qVariantFromValue(QVector3D(x, y, z)));
+ return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QVector3D(x, y, z)));
}
QScriptValue QDeclarativeEnginePrivate::formatDate(QScriptContext*ctxt, QScriptEngine*engine)
@@ -1198,7 +1198,7 @@ QScriptValue QDeclarativeEnginePrivate::rect(QScriptContext *ctxt, QScriptEngine
if (w < 0 || h < 0)
return engine->nullValue();
- return qScriptValueFromValue(engine, qVariantFromValue(QRectF(x, y, w, h)));
+ return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QRectF(x, y, w, h)));
}
QScriptValue QDeclarativeEnginePrivate::point(QScriptContext *ctxt, QScriptEngine *engine)
@@ -1207,7 +1207,7 @@ QScriptValue QDeclarativeEnginePrivate::point(QScriptContext *ctxt, QScriptEngin
return ctxt->throwError("Qt.point(): Invalid arguments");
qsreal x = ctxt->argument(0).toNumber();
qsreal y = ctxt->argument(1).toNumber();
- return qScriptValueFromValue(engine, qVariantFromValue(QPointF(x, y)));
+ return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QPointF(x, y)));
}
QScriptValue QDeclarativeEnginePrivate::size(QScriptContext *ctxt, QScriptEngine *engine)
@@ -1216,7 +1216,7 @@ QScriptValue QDeclarativeEnginePrivate::size(QScriptContext *ctxt, QScriptEngine
return ctxt->throwError("Qt.size(): Invalid arguments");
qsreal w = ctxt->argument(0).toNumber();
qsreal h = ctxt->argument(1).toNumber();
- return qScriptValueFromValue(engine, qVariantFromValue(QSizeF(w, h)));
+ return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QSizeF(w, h)));
}
QScriptValue QDeclarativeEnginePrivate::lighter(QScriptContext *ctxt, QScriptEngine *engine)
diff --git a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
index 33e47fb..03366f0 100644
--- a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
+++ b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
@@ -444,7 +444,7 @@ QScriptValue QDeclarativeObjectScriptClass::destroy(QScriptContext *context, QSc
QDeclarativeData *ddata = QDeclarativeData::get(data->object, false);
if (!ddata || ddata->indestructible)
- return engine->currentContext()->throwError(QLatin1String("Invalid attempt to destroy() an indestructible object"));
+ return engine->currentContext()->throwError(QLatin1String("Invalid attempt to destroy() an indestructible object"));
QObject *obj = data->object;
int delay = 0;
diff --git a/src/declarative/qml/qdeclarativevaluetype.cpp b/src/declarative/qml/qdeclarativevaluetype.cpp
index c6fe161..dbc25bb 100644
--- a/src/declarative/qml/qdeclarativevaluetype.cpp
+++ b/src/declarative/qml/qdeclarativevaluetype.cpp
@@ -116,8 +116,16 @@ QDeclarativeValueType *QDeclarativeValueTypeFactory::valueType(int t)
return new QDeclarativeRectValueType;
case QVariant::RectF:
return new QDeclarativeRectFValueType;
+ case QVariant::Vector2D:
+ return new QDeclarativeVector2DValueType;
case QVariant::Vector3D:
return new QDeclarativeVector3DValueType;
+ case QVariant::Vector4D:
+ return new QDeclarativeVector4DValueType;
+ case QVariant::Quaternion:
+ return new QDeclarativeQuaternionValueType;
+ case QVariant::Matrix4x4:
+ return new QDeclarativeMatrix4x4ValueType;
case QVariant::EasingCurve:
return new QDeclarativeEasingValueType;
case QVariant::Font:
@@ -460,6 +468,54 @@ void QDeclarativeRectValueType::setHeight(int h)
rect.setHeight(h);
}
+QDeclarativeVector2DValueType::QDeclarativeVector2DValueType(QObject *parent)
+: QDeclarativeValueType(parent)
+{
+}
+
+void QDeclarativeVector2DValueType::read(QObject *obj, int idx)
+{
+ void *a[] = { &vector, 0 };
+ QMetaObject::metacall(obj, QMetaObject::ReadProperty, idx, a);
+}
+
+void QDeclarativeVector2DValueType::write(QObject *obj, int idx, QDeclarativePropertyPrivate::WriteFlags flags)
+{
+ int status = -1;
+ void *a[] = { &vector, 0, &status, &flags };
+ QMetaObject::metacall(obj, QMetaObject::WriteProperty, idx, a);
+}
+
+QVariant QDeclarativeVector2DValueType::value()
+{
+ return QVariant(vector);
+}
+
+void QDeclarativeVector2DValueType::setValue(QVariant value)
+{
+ vector = qvariant_cast<QVector2D>(value);
+}
+
+qreal QDeclarativeVector2DValueType::x() const
+{
+ return vector.x();
+}
+
+qreal QDeclarativeVector2DValueType::y() const
+{
+ return vector.y();
+}
+
+void QDeclarativeVector2DValueType::setX(qreal x)
+{
+ vector.setX(x);
+}
+
+void QDeclarativeVector2DValueType::setY(qreal y)
+{
+ vector.setY(y);
+}
+
QDeclarativeVector3DValueType::QDeclarativeVector3DValueType(QObject *parent)
: QDeclarativeValueType(parent)
{
@@ -518,6 +574,170 @@ void QDeclarativeVector3DValueType::setZ(qreal z)
vector.setZ(z);
}
+QDeclarativeVector4DValueType::QDeclarativeVector4DValueType(QObject *parent)
+: QDeclarativeValueType(parent)
+{
+}
+
+void QDeclarativeVector4DValueType::read(QObject *obj, int idx)
+{
+ void *a[] = { &vector, 0 };
+ QMetaObject::metacall(obj, QMetaObject::ReadProperty, idx, a);
+}
+
+void QDeclarativeVector4DValueType::write(QObject *obj, int idx, QDeclarativePropertyPrivate::WriteFlags flags)
+{
+ int status = -1;
+ void *a[] = { &vector, 0, &status, &flags };
+ QMetaObject::metacall(obj, QMetaObject::WriteProperty, idx, a);
+}
+
+QVariant QDeclarativeVector4DValueType::value()
+{
+ return QVariant(vector);
+}
+
+void QDeclarativeVector4DValueType::setValue(QVariant value)
+{
+ vector = qvariant_cast<QVector4D>(value);
+}
+
+qreal QDeclarativeVector4DValueType::x() const
+{
+ return vector.x();
+}
+
+qreal QDeclarativeVector4DValueType::y() const
+{
+ return vector.y();
+}
+
+qreal QDeclarativeVector4DValueType::z() const
+{
+ return vector.z();
+}
+
+qreal QDeclarativeVector4DValueType::w() const
+{
+ return vector.w();
+}
+
+void QDeclarativeVector4DValueType::setX(qreal x)
+{
+ vector.setX(x);
+}
+
+void QDeclarativeVector4DValueType::setY(qreal y)
+{
+ vector.setY(y);
+}
+
+void QDeclarativeVector4DValueType::setZ(qreal z)
+{
+ vector.setZ(z);
+}
+
+void QDeclarativeVector4DValueType::setW(qreal w)
+{
+ vector.setW(w);
+}
+
+QDeclarativeQuaternionValueType::QDeclarativeQuaternionValueType(QObject *parent)
+: QDeclarativeValueType(parent)
+{
+}
+
+void QDeclarativeQuaternionValueType::read(QObject *obj, int idx)
+{
+ void *a[] = { &quaternion, 0 };
+ QMetaObject::metacall(obj, QMetaObject::ReadProperty, idx, a);
+}
+
+void QDeclarativeQuaternionValueType::write(QObject *obj, int idx, QDeclarativePropertyPrivate::WriteFlags flags)
+{
+ int status = -1;
+ void *a[] = { &quaternion, 0, &status, &flags };
+ QMetaObject::metacall(obj, QMetaObject::WriteProperty, idx, a);
+}
+
+QVariant QDeclarativeQuaternionValueType::value()
+{
+ return QVariant(quaternion);
+}
+
+void QDeclarativeQuaternionValueType::setValue(QVariant value)
+{
+ quaternion = qvariant_cast<QQuaternion>(value);
+}
+
+qreal QDeclarativeQuaternionValueType::scalar() const
+{
+ return quaternion.scalar();
+}
+
+qreal QDeclarativeQuaternionValueType::x() const
+{
+ return quaternion.x();
+}
+
+qreal QDeclarativeQuaternionValueType::y() const
+{
+ return quaternion.y();
+}
+
+qreal QDeclarativeQuaternionValueType::z() const
+{
+ return quaternion.z();
+}
+
+void QDeclarativeQuaternionValueType::setScalar(qreal scalar)
+{
+ quaternion.setScalar(scalar);
+}
+
+void QDeclarativeQuaternionValueType::setX(qreal x)
+{
+ quaternion.setX(x);
+}
+
+void QDeclarativeQuaternionValueType::setY(qreal y)
+{
+ quaternion.setY(y);
+}
+
+void QDeclarativeQuaternionValueType::setZ(qreal z)
+{
+ quaternion.setZ(z);
+}
+
+QDeclarativeMatrix4x4ValueType::QDeclarativeMatrix4x4ValueType(QObject *parent)
+: QDeclarativeValueType(parent)
+{
+}
+
+void QDeclarativeMatrix4x4ValueType::read(QObject *obj, int idx)
+{
+ void *a[] = { &matrix, 0 };
+ QMetaObject::metacall(obj, QMetaObject::ReadProperty, idx, a);
+}
+
+void QDeclarativeMatrix4x4ValueType::write(QObject *obj, int idx, QDeclarativePropertyPrivate::WriteFlags flags)
+{
+ int status = -1;
+ void *a[] = { &matrix, 0, &status, &flags };
+ QMetaObject::metacall(obj, QMetaObject::WriteProperty, idx, a);
+}
+
+QVariant QDeclarativeMatrix4x4ValueType::value()
+{
+ return QVariant(matrix);
+}
+
+void QDeclarativeMatrix4x4ValueType::setValue(QVariant value)
+{
+ matrix = qvariant_cast<QMatrix4x4>(value);
+}
+
QDeclarativeEasingValueType::QDeclarativeEasingValueType(QObject *parent)
: QDeclarativeValueType(parent)
{
diff --git a/src/declarative/qml/qdeclarativevaluetype_p.h b/src/declarative/qml/qdeclarativevaluetype_p.h
index d1833bb..476c73d 100644
--- a/src/declarative/qml/qdeclarativevaluetype_p.h
+++ b/src/declarative/qml/qdeclarativevaluetype_p.h
@@ -60,7 +60,11 @@
#include <QtCore/qrect.h>
#include <QtCore/qeasingcurve.h>
#include <QtCore/qvariant.h>
+#include <QtGui/qvector2d.h>
#include <QtGui/qvector3d.h>
+#include <QtGui/qvector4d.h>
+#include <QtGui/qmatrix4x4.h>
+#include <QtGui/qquaternion.h>
#include <QtGui/qfont.h>
QT_BEGIN_NAMESPACE
@@ -241,6 +245,28 @@ private:
QRect rect;
};
+class Q_AUTOTEST_EXPORT QDeclarativeVector2DValueType : public QDeclarativeValueType
+{
+ Q_PROPERTY(qreal x READ x WRITE setX)
+ Q_PROPERTY(qreal y READ y WRITE setY)
+ Q_OBJECT
+public:
+ QDeclarativeVector2DValueType(QObject *parent = 0);
+
+ virtual void read(QObject *, int);
+ virtual void write(QObject *, int, QDeclarativePropertyPrivate::WriteFlags);
+ virtual QVariant value();
+ virtual void setValue(QVariant value);
+
+ qreal x() const;
+ qreal y() const;
+ void setX(qreal);
+ void setY(qreal);
+
+private:
+ QVector2D vector;
+};
+
class Q_AUTOTEST_EXPORT QDeclarativeVector3DValueType : public QDeclarativeValueType
{
Q_PROPERTY(qreal x READ x WRITE setX)
@@ -266,6 +292,127 @@ private:
QVector3D vector;
};
+class Q_AUTOTEST_EXPORT QDeclarativeVector4DValueType : public QDeclarativeValueType
+{
+ Q_PROPERTY(qreal x READ x WRITE setX)
+ Q_PROPERTY(qreal y READ y WRITE setY)
+ Q_PROPERTY(qreal z READ z WRITE setZ)
+ Q_PROPERTY(qreal w READ w WRITE setW)
+ Q_OBJECT
+public:
+ QDeclarativeVector4DValueType(QObject *parent = 0);
+
+ virtual void read(QObject *, int);
+ virtual void write(QObject *, int, QDeclarativePropertyPrivate::WriteFlags);
+ virtual QVariant value();
+ virtual void setValue(QVariant value);
+
+ qreal x() const;
+ qreal y() const;
+ qreal z() const;
+ qreal w() const;
+ void setX(qreal);
+ void setY(qreal);
+ void setZ(qreal);
+ void setW(qreal);
+
+private:
+ QVector4D vector;
+};
+
+class Q_AUTOTEST_EXPORT QDeclarativeQuaternionValueType : public QDeclarativeValueType
+{
+ Q_PROPERTY(qreal scalar READ scalar WRITE setScalar)
+ Q_PROPERTY(qreal x READ x WRITE setX)
+ Q_PROPERTY(qreal y READ y WRITE setY)
+ Q_PROPERTY(qreal z READ z WRITE setZ)
+ Q_OBJECT
+public:
+ QDeclarativeQuaternionValueType(QObject *parent = 0);
+
+ virtual void read(QObject *, int);
+ virtual void write(QObject *, int, QDeclarativePropertyPrivate::WriteFlags);
+ virtual QVariant value();
+ virtual void setValue(QVariant value);
+
+ qreal scalar() const;
+ qreal x() const;
+ qreal y() const;
+ qreal z() const;
+ void setScalar(qreal);
+ void setX(qreal);
+ void setY(qreal);
+ void setZ(qreal);
+
+private:
+ QQuaternion quaternion;
+};
+
+class Q_AUTOTEST_EXPORT QDeclarativeMatrix4x4ValueType : public QDeclarativeValueType
+{
+ Q_PROPERTY(qreal m11 READ m11 WRITE setM11)
+ Q_PROPERTY(qreal m12 READ m12 WRITE setM12)
+ Q_PROPERTY(qreal m13 READ m13 WRITE setM13)
+ Q_PROPERTY(qreal m14 READ m14 WRITE setM14)
+ Q_PROPERTY(qreal m21 READ m21 WRITE setM21)
+ Q_PROPERTY(qreal m22 READ m22 WRITE setM22)
+ Q_PROPERTY(qreal m23 READ m23 WRITE setM23)
+ Q_PROPERTY(qreal m24 READ m24 WRITE setM24)
+ Q_PROPERTY(qreal m31 READ m31 WRITE setM31)
+ Q_PROPERTY(qreal m32 READ m32 WRITE setM32)
+ Q_PROPERTY(qreal m33 READ m33 WRITE setM33)
+ Q_PROPERTY(qreal m34 READ m34 WRITE setM34)
+ Q_PROPERTY(qreal m41 READ m41 WRITE setM41)
+ Q_PROPERTY(qreal m42 READ m42 WRITE setM42)
+ Q_PROPERTY(qreal m43 READ m43 WRITE setM43)
+ Q_PROPERTY(qreal m44 READ m44 WRITE setM44)
+ Q_OBJECT
+public:
+ QDeclarativeMatrix4x4ValueType(QObject *parent = 0);
+
+ virtual void read(QObject *, int);
+ virtual void write(QObject *, int, QDeclarativePropertyPrivate::WriteFlags);
+ virtual QVariant value();
+ virtual void setValue(QVariant value);
+
+ qreal m11() const { return matrix(0, 0); }
+ qreal m12() const { return matrix(0, 1); }
+ qreal m13() const { return matrix(0, 2); }
+ qreal m14() const { return matrix(0, 3); }
+ qreal m21() const { return matrix(1, 0); }
+ qreal m22() const { return matrix(1, 1); }
+ qreal m23() const { return matrix(1, 2); }
+ qreal m24() const { return matrix(1, 3); }
+ qreal m31() const { return matrix(2, 0); }
+ qreal m32() const { return matrix(2, 1); }
+ qreal m33() const { return matrix(2, 2); }
+ qreal m34() const { return matrix(2, 3); }
+ qreal m41() const { return matrix(3, 0); }
+ qreal m42() const { return matrix(3, 1); }
+ qreal m43() const { return matrix(3, 2); }
+ qreal m44() const { return matrix(3, 3); }
+
+ void setM11(qreal value) { matrix(0, 0) = value; }
+ void setM12(qreal value) { matrix(0, 1) = value; }
+ void setM13(qreal value) { matrix(0, 2) = value; }
+ void setM14(qreal value) { matrix(0, 3) = value; }
+ void setM21(qreal value) { matrix(1, 0) = value; }
+ void setM22(qreal value) { matrix(1, 1) = value; }
+ void setM23(qreal value) { matrix(1, 2) = value; }
+ void setM24(qreal value) { matrix(1, 3) = value; }
+ void setM31(qreal value) { matrix(2, 0) = value; }
+ void setM32(qreal value) { matrix(2, 1) = value; }
+ void setM33(qreal value) { matrix(2, 2) = value; }
+ void setM34(qreal value) { matrix(2, 3) = value; }
+ void setM41(qreal value) { matrix(3, 0) = value; }
+ void setM42(qreal value) { matrix(3, 1) = value; }
+ void setM43(qreal value) { matrix(3, 2) = value; }
+ void setM44(qreal value) { matrix(3, 3) = value; }
+
+private:
+ QMatrix4x4 matrix;
+};
+
class Q_AUTOTEST_EXPORT QDeclarativeEasingValueType : public QDeclarativeValueType
{
Q_OBJECT
diff --git a/src/declarative/util/qdeclarativeconnections.cpp b/src/declarative/util/qdeclarativeconnections.cpp
index c23b623..5dd825e 100644
--- a/src/declarative/util/qdeclarativeconnections.cpp
+++ b/src/declarative/util/qdeclarativeconnections.cpp
@@ -57,7 +57,7 @@ QT_BEGIN_NAMESPACE
class QDeclarativeConnectionsPrivate : public QObjectPrivate
{
public:
- QDeclarativeConnectionsPrivate() : target(0), ignoreUnknownSignals(false), componentcomplete(false) {}
+ QDeclarativeConnectionsPrivate() : target(0), targetSet(false), ignoreUnknownSignals(false), componentcomplete(false) {}
QList<QDeclarativeBoundSignal*> boundsignals;
QObject *target;
diff --git a/src/declarative/util/qdeclarativetimeline.cpp b/src/declarative/util/qdeclarativetimeline.cpp
index 656c62b..291b2f3 100644
--- a/src/declarative/util/qdeclarativetimeline.cpp
+++ b/src/declarative/util/qdeclarativetimeline.cpp
@@ -387,7 +387,10 @@ void QDeclarativeTimeLine::set(QDeclarativeTimeLineValue &timeLineValue, qreal v
*/
int QDeclarativeTimeLine::accel(QDeclarativeTimeLineValue &timeLineValue, qreal velocity, qreal acceleration)
{
- if ((velocity > 0.0f) == (acceleration > 0.0f))
+ if (acceleration == 0.0f)
+ return -1;
+
+ if ((velocity > 0.0f) == (acceleration > 0.0f))
acceleration = acceleration * -1.0f;
int time = static_cast<int>(-1000 * velocity / acceleration);
@@ -410,13 +413,16 @@ int QDeclarativeTimeLine::accel(QDeclarativeTimeLineValue &timeLineValue, qreal
*/
int QDeclarativeTimeLine::accel(QDeclarativeTimeLineValue &timeLineValue, qreal velocity, qreal acceleration, qreal maxDistance)
{
- Q_ASSERT(acceleration >= 0.0f && maxDistance >= 0.0f);
+ if (maxDistance == 0.0f || acceleration == 0.0f)
+ return -1;
+
+ Q_ASSERT(acceleration > 0.0f && maxDistance > 0.0f);
qreal maxAccel = (velocity * velocity) / (2.0f * maxDistance);
if (maxAccel > acceleration)
acceleration = maxAccel;
- if ((velocity > 0.0f) == (acceleration > 0.0f))
+ if ((velocity > 0.0f) == (acceleration > 0.0f))
acceleration = acceleration * -1.0f;
int time = static_cast<int>(-1000 * velocity / acceleration);
@@ -438,6 +444,7 @@ int QDeclarativeTimeLine::accelDistance(QDeclarativeTimeLineValue &timeLineValue
{
if (distance == 0.0f || velocity == 0.0f)
return -1;
+
Q_ASSERT((distance >= 0.0f) == (velocity >= 0.0f));
int time = static_cast<int>(1000 * (2.0f * distance) / velocity);