Loading icons is quite slow because we need to stat many files in many directories.
That's why gtk adds a cache in the icon theme directory so it avoids stating lots
of files.
The cache file can be generated with gtk-update-icon-cache utility on a theme
directory. If the cache is not present, corrupted, or outdated, the normal slow lookup
is still run.
[ChangeLog][QtGui][QIcon] fromTheme gained the ability to use the GTK icon cache
to speed up lookups.
Change-Id: I3ab8a9910be67a34034556023be61a86789a7893
Reviewed-by: David Faure <david.faure@kdab.com>
- Move the files and tests
git mv src/widgets/kernel/qicon* qrc/gui/image/
git mv tests/auto/widgets/kernel/qicon/ tests/auto/gui/image/
- update the include of QIcon
git grep -O"sed -i s,QtWidgets/qicon,QtGui/qicon," "QtWidgets/qicon"
git grep -O"sed -i s,QtWidgets/QIcon,QtGui/QIcon," "QtWidgets/QIcon"
- Adapt QIcon \ingroup documentation
sed -i s/QtWidgets/QtGui/ src/gui/images/qicon*
- Adapt export macro
sed -i s/Q_WIDGETS_EXPORT/Q_GUI_EXPORT/g src/gui/image/qicon*
- Update .pri and .pro files
- Remove the use of QStyle::alignedRect by copying its content (and
adapt slightly
- Use QGuiApplication::palette() instead of QApplication::palette()
- Add a hook in QGuiApplicationPrivate to call the
QStyle::generatedIconPixmap() from QtWidgets
Another commit follows to adjust QMetaType::Icon and move the QVariant
and QMetaType icon handler back in QtGui
Change-Id: I1b63759f892ebc02dfc30f41bb6e76e0b7451182
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
