Correct wordwrapped text handling in QListView icon mode

Currently a QListView with wordwrapping activated will wrap the text
only to the width of the icon even if the grid size is bigger. With this
patch the option rect is now updated to match the grid size if valid
and the style uses it to determine the correct size when wrapping

[ChangeLog][QtWidgets][QTBUG-4714] Use the grid size for wordwrapping
when available in icon mode
Task-number: QTBUG-4714
Change-Id: I2cb63809d3ee8bd262f38bc11de91df9ff5cf237
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Ask qdoc not to parse Q_DECL_UNUSED

We have it on function declarations and it gets a bit lost...

Change-Id: I19ba2e760f3714c26e78c3d8fd2570af3dcd136e
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
MIPS DSP build system fix and additional optimizations.

Changed MIPS DSP portion of the mkspecs/features/simd.prf file in order
to fix the corrupted build system for MIPS platforms.

List of the additionally optimized functions

from file src/gui/painting/qdrawhelper.cpp:
- qt_blend_rgb16_on_rgb16
- qt_fetchUntransformed_888
- qt_fetchUntransformed_444
- qt_fetchUntransformed_argb8565

from file src/gui/image/qimage.cpp:
- convert_ARGB_to_ARGB_PM_inplace

from file src/corelib/qstring.cpp:
- ucstrncmp
- toLatin1_helper
- fromLatin1_helper

Change-Id: I5c47a69784917eee29a8dbd2718828a390b27c93
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Stabilize tst_scrollbar.

- Use a separate widget for each test.
- Replace hard-coded timeouts by qWaitForWindowExposed.
- Center windows on screen.

Change-Id: I45ae306fd23348ee5dec3849e64ec98843e8bf32
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
Windows: Use focusWindow() as native dialog parent when 0 is passed.

A parent is required, otherwise the application gets deactivated when
the dialog closes. The same is done in Qt 4.

Task-number: QTBUG-36039

Change-Id: I56688b3259f1d207edd1bec499afd1365ae511dc
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>