diff options
Diffstat (limited to 'src/plugins')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection_xi2.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp index b2dcf7c3e7..335ec344d5 100644 --- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp @@ -1019,10 +1019,12 @@ void QXcbConnection::xi2HandleScrollEvent(void *event, ScrollingDevice &scrollin double delta = scrollingDevice.lastScrollPosition.y() - value; scrollingDevice.lastScrollPosition.setY(value); angleDelta.setY((delta / scrollingDevice.verticalIncrement) * 120); - // We do not set "pixel" delta if it is only measured in ticks. - if (scrollingDevice.verticalIncrement > 1) + // With most drivers the increment is 1 for wheels. + // For libinput it is hardcoded to a useless 15. + // For a proper touchpad driver it should be in the same order of magnitude as 120 + if (scrollingDevice.verticalIncrement > 15) rawDelta.setY(delta); - else if (scrollingDevice.verticalIncrement < -1) + else if (scrollingDevice.verticalIncrement < -15) rawDelta.setY(-delta); } } @@ -1031,10 +1033,10 @@ void QXcbConnection::xi2HandleScrollEvent(void *event, ScrollingDevice &scrollin double delta = scrollingDevice.lastScrollPosition.x() - value; scrollingDevice.lastScrollPosition.setX(value); angleDelta.setX((delta / scrollingDevice.horizontalIncrement) * 120); - // We do not set "pixel" delta if it is only measured in ticks. - if (scrollingDevice.horizontalIncrement > 1) + // See comment under vertical + if (scrollingDevice.horizontalIncrement > 15) rawDelta.setX(delta); - else if (scrollingDevice.horizontalIncrement < -1) + else if (scrollingDevice.horizontalIncrement < -15) rawDelta.setX(-delta); } } |