diff options
Diffstat (limited to 'src/corelib/animation/qpropertyanimation.cpp')
| -rw-r--r-- | src/corelib/animation/qpropertyanimation.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/corelib/animation/qpropertyanimation.cpp b/src/corelib/animation/qpropertyanimation.cpp index 5f224aa..0c1feee 100644 --- a/src/corelib/animation/qpropertyanimation.cpp +++ b/src/corelib/animation/qpropertyanimation.cpp @@ -34,7 +34,7 @@ ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://www.qtsoftware.com/contact. +** contact the sales department at http://qt.nokia.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -293,7 +293,12 @@ void QPropertyAnimation::updateState(QAbstractAnimation::State oldState, hash.insert(key, this); // update the default start value if (oldState == Stopped) { - d->setDefaultStartValue(d->target->property(d->propertyName.constData())); + d->setDefaultStartEndValue(d->target->property(d->propertyName.constData())); + //let's check if we have a start value and an end value + if (d->direction == Forward && !startValue().isValid() && !d->defaultStartEndValue.isValid()) + qWarning("QPropertyAnimation::updateState: starting an animation without start value"); + if (d->direction == Backward && !endValue().isValid() && !d->defaultStartEndValue.isValid()) + qWarning("QPropertyAnimation::updateState: starting an animation without end value"); } } else if (hash.value(key) == this) { hash.remove(key); |