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author | Andreas Aardal Hanssen <andreas@hanssen.name> | 2012-11-12 21:10:21 +0100 |
---|---|---|
committer | The Qt Project <gerrit-noreply@qt-project.org> | 2012-11-13 15:34:56 +0100 |
commit | f3597af5adcd2275503e9e4bfb425549f9ab3ced (patch) | |
tree | d6a85057a64882777c83a2a61c4e4e8faa2d7161 /tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp | |
parent | 041769d4e4cd87288e64108faeb8b46d3f39e409 (diff) |
Fix zero-duration animations running Backwards.
If you set the duration of any variant or property animation to 0,
its progress will be stuck at 1 (0..1), and its "end" value set on
the target object, after start() has been called. If you change the
direction of the animation to QAbstractAnimation::Backward, you
would expect the progress to be 0 after start. Instead it's still
1; the code seems to assume that if the duration is 0, the
progress must be 1 always.
The fix is that if the duration is 0, the direction is checked to
determine whether progress should be 0 (Backward) or 1 (Forward).
Task-number: QTBUG-27969
Change-Id: Ibeca084bbbce41df1dca7b7d96c15b6b54394996
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Thierry Bastian <thierryb@filewave.com>
Reviewed-by: Magne Zachrisen <mazachri@cisco.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Diffstat (limited to 'tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp')
-rw-r--r-- | tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp b/tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp index bc08be530c..f1e02c65a8 100644 --- a/tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp +++ b/tests/auto/corelib/animation/qpropertyanimation/tst_qpropertyanimation.cpp @@ -113,6 +113,7 @@ private slots: void setStartEndValues_data(); void setStartEndValues(); void zeroDurationStart(); + void zeroDurationForwardBackward(); void operationsInStates_data(); void operationsInStates(); void oneKeyValue(); @@ -873,6 +874,50 @@ void tst_QPropertyAnimation::zeroDurationStart() QCOMPARE(qvariant_cast<QAbstractAnimation::State>(secondChange.first()), QAbstractAnimation::Stopped); } +void tst_QPropertyAnimation::zeroDurationForwardBackward() +{ + QObject o; o.setProperty("test", 1); + QObject o2; o2.setProperty("test", 2); + QObject o3; o3.setProperty("test", 3); + QObject o4; o4.setProperty("test", 4); + QPropertyAnimation prop(&o, "test"); prop.setDuration(0); prop.setStartValue(1); prop.setEndValue(2); + + prop.start(); + QCOMPARE(o.property("test").toInt(), 2); + prop.setDirection(QAbstractAnimation::Backward); + prop.start(); + QCOMPARE(o.property("test").toInt(), 1); + + prop.setDirection(QAbstractAnimation::Forward); + QPropertyAnimation prop2(&o2, "test"); prop2.setDuration(0); prop2.setStartValue(2); prop2.setEndValue(3); + QPropertyAnimation prop3(&o3, "test"); prop3.setDuration(0); prop3.setStartValue(3); prop3.setEndValue(4); + QPropertyAnimation prop4(&o4, "test"); prop4.setDuration(0); prop4.setStartValue(4); prop4.setEndValue(5); + QSequentialAnimationGroup group; + group.addAnimation(&prop); + group.addAnimation(&prop2); + group.addAnimation(&prop3); + group.addAnimation(&prop4); + group.start(); + + QCOMPARE(o.property("test").toInt(), 2); + QCOMPARE(o2.property("test").toInt(), 3); + QCOMPARE(o3.property("test").toInt(), 4); + QCOMPARE(o4.property("test").toInt(), 5); + + group.setDirection(QAbstractAnimation::Backward); + group.start(); + + QCOMPARE(o.property("test").toInt(), 1); + QCOMPARE(o2.property("test").toInt(), 2); + QCOMPARE(o3.property("test").toInt(), 3); + QCOMPARE(o4.property("test").toInt(), 4); + + group.removeAnimation(&prop); + group.removeAnimation(&prop2); + group.removeAnimation(&prop3); + group.removeAnimation(&prop4); +} + #define Pause 1 #define Start 2 #define Resume 3 |