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Fix stylesheet crash.

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Style sheets that refer to the progress bar (like
"QProgressDialog[maximum='0']{}") may dereference a
null-pointer during the styleHint() call in QProgressDialogPrivate::init()
since the progress bar has not been created yet.

Move the creation of the progress bar closer to the
top of init(), before the styleHint() call.

Change-Id: I31c3c1c346430fc9fe86b0977403dea0c0dc5e90
Task-number: QTBUG-43830
Reviewed-by: Andras Becsi <andras.becsi@theqtcompany.com>
This commit is contained in:
Morten Johan Sørvig 2015-01-14 14:20:04 +01:00
parent 5239ba95e8
commit b2cff0b4bf
1 changed files with 2 additions and 2 deletions
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4
src/widgets/dialogs/qprogressdialog.cpp
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@ -108,10 +108,10 @@ void QProgressDialogPrivate::init(const QString &labelText, const QString &cance
{
Q_Q(QProgressDialog);
label = new QLabel(labelText, q);
int align = q->style()->styleHint(QStyle::SH_ProgressDialog_TextLabelAlignment, 0, q);
label->setAlignment(Qt::Alignment(align));
bar = new QProgressBar(q);
bar->setRange(min, max);
int align = q->style()->styleHint(QStyle::SH_ProgressDialog_TextLabelAlignment, 0, q);
label->setAlignment(Qt::Alignment(align));
autoClose = true;
autoReset = true;
forceHide = false;