Obsolete QDirModel and remove it from the doc.

QFileSystemModel provides the same features as QDirModel but in a
efficient way so no need to keep QDirModel around.
This commit mark as obsolete QDirModel. Examples has been ported to
use QFileSystemModel instead. QCompleter also gain the support of
QFileSystemModel to complete nicely a line edit.

This commit also add a new signal in QFileSystemModel when the directory
is loaded, i.e. the thread has finished to read the current dir.

Task-number:QTBUG-3884
Reviewed-by:ogoffart
Reviewed-by:gabi
Reviewed-by:mbm

4 files changed, 13 insertions, 0 deletions

diff --git a/src/gui/dialogs/qfileinfogatherer.cpp b/src/gui/dialogs/qfileinfogatherer.cpp
index 2729530..bcabb20 100644
--- a/src/gui/dialogs/qfileinfogatherer.cpp
+++ b/src/gui/dialogs/qfileinfogatherer.cpp
@@ -354,6 +354,7 @@ void QFileInfoGatherer::getFileInfos(const QString &path, const QStringList &fil
     }
     if (!updatedFiles.isEmpty())
         emit updates(path, updatedFiles);
+    emit directoryLoaded(path);
 }
 
 void QFileInfoGatherer::fetch(const QFileInfo &fileInfo, QTime &base, bool &firstTime, QList<QPair<QString, QFileInfo> > &updatedFiles, const QString &path) {
diff --git a/src/gui/dialogs/qfileinfogatherer_p.h b/src/gui/dialogs/qfileinfogatherer_p.h
index b722410..db4e1d0 100644
--- a/src/gui/dialogs/qfileinfogatherer_p.h
+++ b/src/gui/dialogs/qfileinfogatherer_p.h
@@ -155,6 +155,7 @@ Q_SIGNALS:
     void updates(const QString &directory, const QList<QPair<QString, QFileInfo> > &updates);
     void newListOfFiles(const QString &directory, const QStringList &listOfFiles) const;
     void nameResolved(const QString &fileName, const QString &resolvedName) const;
+    void directoryLoaded(const QString &path);
 
 public:
     QFileInfoGatherer(QObject *parent = 0);
diff --git a/src/gui/dialogs/qfilesystemmodel.cpp b/src/gui/dialogs/qfilesystemmodel.cpp
index 6ec80a9..063f979 100644
--- a/src/gui/dialogs/qfilesystemmodel.cpp
+++ b/src/gui/dialogs/qfilesystemmodel.cpp
@@ -150,6 +150,14 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \since 4.7
+    \fn void QFileSystemModel::directoryLoaded(const QString &path)
+
+    This signal is emitted when the gatherer thread has finished to load the \a path.
+
+*/
+
+/*!
     \fn bool QFileSystemModel::remove(const QModelIndex &index) const
 
     Removes the model item \a index from the file system model and \bold{deletes the
@@ -1869,6 +1877,8 @@ void QFileSystemModelPrivate::init()
             q, SLOT(_q_fileSystemChanged(QString,QList<QPair<QString,QFileInfo> >)));
     q->connect(&fileInfoGatherer, SIGNAL(nameResolved(QString,QString)),
             q, SLOT(_q_resolvedName(QString,QString)));
+    q->connect(&fileInfoGatherer, SIGNAL(directoryLoaded(QString)),
+               q, SIGNAL(directoryLoaded(QString)));
     q->connect(&delayedSortTimer, SIGNAL(timeout()), q, SLOT(_q_performDelayedSort()), Qt::QueuedConnection);
 }
 
diff --git a/src/gui/dialogs/qfilesystemmodel.h b/src/gui/dialogs/qfilesystemmodel.h
index 4a3c892..a41bc3f 100644
--- a/src/gui/dialogs/qfilesystemmodel.h
+++ b/src/gui/dialogs/qfilesystemmodel.h
@@ -70,6 +70,7 @@ class Q_GUI_EXPORT QFileSystemModel : public QAbstractItemModel
 Q_SIGNALS:
     void rootPathChanged(const QString &newPath);
     void fileRenamed(const QString &path, const QString &oldName, const QString &newName);
+    void directoryLoaded(const QString &path);
 
 public:
     enum Roles {