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| author | Shawn Rutledge <shawn.rutledge@digia.com> | 2014-07-28 14:14:38 +0200 |
|---|---|---|
| committer | Shawn Rutledge <shawn.rutledge@digia.com> | 2014-07-28 16:37:31 +0200 |
| commit | 67410cd644b76354ba17e9541903cdefa84fc85c (patch) | |
| tree | ae58a59b39f45e32dc6539ccab199001b699a158 /src | |
| parent | a5578d216a37b04cd792bc470f5de86e95f1dc41 (diff) | |
| download | qtbase-67410cd644b76354ba17e9541903cdefa84fc85c.tar.gz | |
Windows: correct tablet stylus rotation to range -180..180 degrees
When the user holds the Wacom Art Pen straight, rotation is zero;
when turning it counter-clockwise, it should have a negative angle,
whereas the driver sends a positive angle multiplied by 10;
when turning it clockwise it should have a positive angle up to 180,
whereas the driver sends 360 * 10 going downwards towards 180 * 10.
These corrections make the angle reading the same between Linux and
Windows.
Task-number: QTBUG-39570
Change-Id: I9f18ef6629bffa849c8d65cba02d42b21469cebc
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowstabletsupport.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/plugins/platforms/windows/qwindowstabletsupport.cpp b/src/plugins/platforms/windows/qwindowstabletsupport.cpp index 8ceab02311..164fc12743 100644 --- a/src/plugins/platforms/windows/qwindowstabletsupport.cpp +++ b/src/plugins/platforms/windows/qwindowstabletsupport.cpp @@ -465,7 +465,9 @@ bool QWindowsTabletSupport::translateTabletPacketEvent() const double degY = atan(cos(radAzim) / tanAlt); tiltX = int(degX * (180 / M_PI)); tiltY = int(-degY * (180 / M_PI)); - rotation = packet.pkOrientation.orTwist; + rotation = 360.0 - (packet.pkOrientation.orTwist / 10.0); + if (rotation > 180.0) + rotation -= 360.0; } if (QWindowsContext::verbose > 1) { |