Direct2D QPA: Improve gradient support

This change adds support for those gradients which can be expressed using
Direct2D. At the moment this means linear and radial gradient with pad
spread only.

Change-Id: Ib1b1bc38a793dd826a259bbf8a7b31c25906dd59
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Direct2D QPA: Optimize rectangle fills.

Detect rectangle hints in the QVectorPath and react accordingly.

Change-Id: Ic72ce0c46d10e995c0824972854e2d88162eae45
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Direct2D QPA: Refactor code to reduce code duplication

Refactor duplicate logic in painterPathToPathGeometry and
vectorPathToID2D1PathGeometry into one utility class. At the same time
make the naming of the two functions consistent with each other.

Change-Id: I03c8fc183863473b7337223e51835cf080914a41
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Direct2D QPA: Fix text drawing with brush but no pen

We were incorrectly bailing out early in the text drawing code when there
was no pen. This is incorrect as drawing with only a brush should be
possible.

Change-Id: I94eaadd3cf6c4d82033b5d74d7ca47a05601083f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Fix polling file system watcher addPaths

Fixes QFileSystemWatcher::addPath() auto test when polling file system
watcher is in use: adding the same path twice should fail.

Change-Id: I2a0df3ffa587fa90fae744858f4471d667443e6f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
CMake: Include the CMakeParseArguments module for dbus macros.

The cmake_parse_arguments macro is used already in the file. The
module happens to already be included via Qt5CoreMacros, so the
existing code is not currently a problem.  Add the include to
comply with 'include what you use' and to ensure that it continues
to work even if Qt5CoreMacros is changed in the future.

Change-Id: I7369261bce9d0e58488e584ef0743e33e9f9ec9e
Reviewed-by: Volker Krause <volker.krause@kdab.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
CMake: Include the definition of the Qt5::AccessibleFactory target.

The file will not exist if the accessible plugin is not built.

Task-number: QTBUG-37849
Change-Id: I2983d01a085b11737bf49805edab5ca33fb5174a
Reviewed-by: Volker Krause <volker.krause@kdab.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Cocoa: Force menubar update after inserting a new menu

Task-number: QTBUG-38135

Change-Id: I7bb9f41789cc77c26a9623d69c28e3ad1607bb9c
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>