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| author | Gabriel de Dietrich <gabriel.dedietrich@qt.io> | 2017-04-24 14:14:58 -0700 |
|---|---|---|
| committer | Gabriel de Dietrich <gabriel.dedietrich@qt.io> | 2017-05-01 04:41:27 +0000 |
| commit | 06713ded600d2d1fb5469dc31373a1878c366485 (patch) | |
| tree | 1bda9f71f3442e31aadbf5bd15d4cff927f42ea5 /src/plugins/platforms/xcb/qxcbconnection.cpp | |
| parent | 5398aaabfc968c198137aa9b28187d9d2a57aa40 (diff) | |
Introducing AA_CompressTabletEvents
Tablet events compression has been missing since commit
60cd1c67759642018ef93cc45a90714729100d9d in 5.6.1, and there's
no way to bring the old behavior back. Since tablet events are
not taken into account by AA_CompressHighFrequencyEvents on
purpose, we introduce this new flag.
This new flag is conditional to AA_CompressHighFrequencyEvents
being set in order for it to be effective.
[ChangeLog][QtCore][Tablet support] If the application attribute
AA_CompressTabletEvents is set in addition to AA_CompressHighFrequencyEvents,
even the QTabletEvents will be compressed (only on the X11 platform so far).
AA_CompressHighFrequencyEvents does not enable compression of tablet events
by itself, because paint applications typically need to process
all possible tablet events in order to draw the smoothest curves.
Change-Id: Ie7434ab4f9a4c64f2626c75e661cfd0d6cd22896
Task-number: QTBUG-44964
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
Reviewed-by: Wayne Arnold <wayne.arnold@autodesk.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp index 58799793ae..66fa59bfea 100644 --- a/src/plugins/platforms/xcb/qxcbconnection.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection.cpp @@ -1562,7 +1562,8 @@ bool QXcbConnection::compressEvent(xcb_generic_event_t *event, int currentIndex, if (isXIType(event, m_xiOpCode, XI_Motion)) { #ifndef QT_NO_TABLETEVENT xXIDeviceEvent *xdev = reinterpret_cast<xXIDeviceEvent *>(event); - if (const_cast<QXcbConnection *>(this)->tabletDataForDevice(xdev->sourceid)) + if (!QCoreApplication::testAttribute(Qt::AA_CompressTabletEvents) && + const_cast<QXcbConnection *>(this)->tabletDataForDevice(xdev->sourceid)) return false; #endif // QT_NO_TABLETEVENT for (int j = nextIndex; j < eventqueue->size(); ++j) { |