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QDateTimeEdit: synchronize time-spec before initializing display

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QDateTimeEdit ignores the time-spec of its date-time value, using its
own time-spec instead; mostly, this works because it first conforms
the value to its own time-spec.  However, during construction, before
doing this, it set up its display data, which could leave it with a
different time (rather than a different representation of the given
time) than it was asked to use.

Moved the updateTimeSpec() calls to immediately after setting value in
QDateTimeEditPrivate::init() to ensure correct handling.  Added test.

Task-number: QTBUG-54781
Change-Id: I3b07c10997abb858fc0b40558bff96e3fdabbd83
Reviewed-by: Jesus Fernandez <jesus.fernandez@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
This commit is contained in:
Edward Welbourne 2016-08-04 16:41:12 +02:00
parent a95d103bd2
commit 3379ace11b
2 changed files with 11 additions and 1 deletions
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4
src/widgets/widgets/qdatetimeedit.cpp
View File

@ -2388,18 +2388,21 @@ void QDateTimeEditPrivate::init(const QVariant &var)
switch (var.type()) {
case QVariant::Date:
value = QDateTime(var.toDate(), QDATETIMEEDIT_TIME_MIN);
updateTimeSpec();
q->setDisplayFormat(defaultDateFormat);
if (sectionNodes.isEmpty()) // ### safeguard for broken locale
q->setDisplayFormat(QLatin1String("dd/MM/yyyy"));
break;
case QVariant::DateTime:
value = var;
updateTimeSpec();
q->setDisplayFormat(defaultDateTimeFormat);
if (sectionNodes.isEmpty()) // ### safeguard for broken locale
q->setDisplayFormat(QLatin1String("dd/MM/yyyy hh:mm:ss"));
break;
case QVariant::Time:
value = QDateTime(QDATETIMEEDIT_DATE_INITIAL, var.toTime());
updateTimeSpec();
q->setDisplayFormat(defaultTimeFormat);
if (sectionNodes.isEmpty()) // ### safeguard for broken locale
q->setDisplayFormat(QLatin1String("hh:mm:ss"));
@ -2412,7 +2415,6 @@ void QDateTimeEditPrivate::init(const QVariant &var)
if (QApplication::keypadNavigationEnabled())
q->setCalendarPopup(true);
#endif
updateTimeSpec();
q->setInputMethodHints(Qt::ImhPreferNumbers);
setLayoutItemMargins(QStyle::SE_DateTimeEditLayoutItem);
}

8
tests/auto/widgets/widgets/qdatetimeedit/tst_qdatetimeedit.cpp
View File

@ -252,6 +252,7 @@ private slots:
void timeSpec_data();
void timeSpec();
void timeSpecBug();
void timeSpecInit();
void monthEdgeCase();
void setLocale();
@ -3215,6 +3216,13 @@ void tst_QDateTimeEdit::timeSpecBug()
QCOMPARE(oldText, testWidget->text());
}
void tst_QDateTimeEdit::timeSpecInit()
{
QDateTime utc(QDate(2000, 1, 1), QTime(12, 0, 0), Qt::UTC);
QDateTimeEdit widget(utc);
QCOMPARE(widget.dateTime(), utc);
}
void tst_QDateTimeEdit::cachedDayTest()
{
testWidget->setDisplayFormat("MM/dd");