In order to filter out file names based on the user's settings,
QFileSystemModel used to have a loop that tested if a given file
name matched one of the filters. The problem is that each filter
(a wildcard) was converted to a QRegularExpression _inside_ the loop.
This causes a quadratic behavior (number of files * number of filters).
Instead, build the regexps once when the filters are set (or the case
sensitivity is changed, as that affects the filtering), and simply
_use_ them in the loop.
Simplify and correct some related code as a drive by.
Done-with: Jean-Michaël Celerier
Fixes: QTBUG-95383
Pick-to: 6.2 6.1 5.15
Change-Id: I6bc336364c145bb05793a8f867545d7715d35832
Reviewed-by: Samuel Gaist <samuel.gaist@idiap.ch>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Amends c0b3c06a7d.
The QCompleter used by QFileDialog uses starts-with matching of
the path parts, for all parts of the path. It uses the EditRole of the
underlying model for the data to match.
The path parts used for a path on Windows are "C:", "Users", "etc...",
and then finally whatever input has been typed so far. If we try to
match that against a starts-with rule against "Local Disk (C:)", then it
will fail and the completer will never have anything to show.
So, for the EditRole, return just the volume drive letter as we did before
c0b3c06a7d, not the volume name. Neither
can be edited anyway. This happens to then match the native file dialog
behavior, which doesn't complete "L" to "Local Disk (C:)" if the Computer
contents (ie. volumes) are shown.
Augment the QCompleter test case to cover that scenario (it already has
everything set up for this particular combination, even though we are
actually testing QFileSystemModel returning the correct data).
Fixes: QTBUG-94799
Task-number: QTBUG-78043
Pick-to: 5.15 6.2 6.1
Change-Id: I14844d91601e9b16dc07cff2ca48713acb7cdd09
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
In QFileSystemModel, in some cases the hostname in a UNC path is
converted to lower case and stored in the root node's visibleChildren.
When QFileSystemModel sets the UNC path as the root path, it tries to
get the row number for the host, but it didn't convert the hostname to
lower case before getting the row number, which resulted in the host
not found in the root node's visible children. As a result, it returns
-1, an invalid row number. Change the behavior to find the node for the
host using the host name case-insensitive and then get the row number.
Fixes: QTBUG-71701
Pick-to: 5.15 6.0 6.1
Change-Id: Ib95c7b6d2bc22fd82f2789b7004b6fc82dfcb13b
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
This requires a QAbstractFileIconProvider in QtGui, as the standard
QFileIconProvider depends on QStyle, and cannot be moved out of
QtWidgets.
QAbstractFileIconProvider returns strings for file types, but returns
no icons yet. Support for a default icon set might be added in a
follow-up commit.
Change-Id: Ib9d095cd612fdcf04db62f2e40709fcffe3dc2b7
Fixes: QTBUG-66177
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
hjk
Jonas Kvinge
Giuseppe D'Angelo
Volker Hilsheimer
Dongmei Wang
Doris Verria