Fixes a crash in QPrinterDialog with relative filenames

It's better to set the sourceModel in the constructor for QFSCompletor,
as requiring that it be set separately is error prone.

Surprisingly, the printer dialog crash only appears to happen when using
relative filenames.

Task-number: 253135
Reviewed-by: alexis

2 files changed, 1 insertions, 2 deletions

diff --git a/src/gui/dialogs/qfiledialog.cpp b/src/gui/dialogs/qfiledialog.cpp
index 2f524cb..eeb2743 100644
--- a/src/gui/dialogs/qfiledialog.cpp
+++ b/src/gui/dialogs/qfiledialog.cpp
@@ -2142,7 +2142,6 @@ void QFileDialogPrivate::createWidgets()
 #ifndef QT_NO_COMPLETER
     completer = new QFSCompletor(model, q);
     qFileDialogUi->fileNameEdit->setCompleter(completer);
-    completer->sourceModel = model;
     QObject::connect(qFileDialogUi->fileNameEdit, SIGNAL(textChanged(QString)),
             q, SLOT(_q_autoCompleteFileName(QString)));
 #endif // QT_NO_COMPLETER
diff --git a/src/gui/dialogs/qfiledialog_p.h b/src/gui/dialogs/qfiledialog_p.h
index dc24390..ab4199e 100644
--- a/src/gui/dialogs/qfiledialog_p.h
+++ b/src/gui/dialogs/qfiledialog_p.h
@@ -97,7 +97,7 @@ class Ui_QFileDialog;
   */
 class QFSCompletor :  public QCompleter {
 public:
-    QFSCompletor(QAbstractItemModel *model, QObject *parent = 0) : QCompleter(model, parent), proxyModel(0), sourceModel(0)
+    QFSCompletor(QFileSystemModel *model, QObject *parent = 0) : QCompleter(model, parent), proxyModel(0), sourceModel(model)
     {
 #ifdef Q_OS_WIN
         setCaseSensitivity(Qt::CaseInsensitive);