diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowspointerhandler.cpp')
-rw-r--r-- | src/plugins/platforms/windows/qwindowspointerhandler.cpp | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowspointerhandler.cpp b/src/plugins/platforms/windows/qwindowspointerhandler.cpp index d8918d1b3d..7ead14822a 100644 --- a/src/plugins/platforms/windows/qwindowspointerhandler.cpp +++ b/src/plugins/platforms/windows/qwindowspointerhandler.cpp @@ -106,6 +106,32 @@ bool QWindowsPointerHandler::translatePointerEvent(QWindow *window, HWND hwnd, Q qWarning() << "GetPointerFrameTouchInfo() failed:" << qt_error_string(); return false; } + + if (!pointerCount) + return false; + + // The history count is the same for all the touchpoints in touchInfo + quint32 historyCount = touchInfo[0].pointerInfo.historyCount; + // dispatch any skipped frames if event compression is disabled by the app + if (historyCount > 1 && !QCoreApplication::testAttribute(Qt::AA_CompressHighFrequencyEvents)) { + touchInfo.resize(pointerCount * historyCount); + if (!QWindowsContext::user32dll.getPointerFrameTouchInfoHistory(pointerId, + &historyCount, + &pointerCount, + touchInfo.data())) { + qWarning() << "GetPointerFrameTouchInfoHistory() failed:" << qt_error_string(); + return false; + } + + // history frames are returned with the most recent frame first so we iterate backwards + bool result = true; + for (auto it = touchInfo.rbegin(), end = touchInfo.rend(); it != end; it += pointerCount) { + result &= translateTouchEvent(window, hwnd, et, msg, + &(*(it + (pointerCount - 1))), pointerCount); + } + return result; + } + return translateTouchEvent(window, hwnd, et, msg, touchInfo.data(), pointerCount); } case QT_PT_PEN: { @@ -114,6 +140,29 @@ bool QWindowsPointerHandler::translatePointerEvent(QWindow *window, HWND hwnd, Q qWarning() << "GetPointerPenInfo() failed:" << qt_error_string(); return false; } + + quint32 historyCount = penInfo.pointerInfo.historyCount; + // dispatch any skipped frames if generic or tablet event compression is disabled by the app + if (historyCount > 1 + && (!QCoreApplication::testAttribute(Qt::AA_CompressHighFrequencyEvents) + || !QCoreApplication::testAttribute(Qt::AA_CompressTabletEvents))) { + QVarLengthArray<POINTER_PEN_INFO, 10> penInfoHistory(historyCount); + + if (!QWindowsContext::user32dll.getPointerPenInfoHistory(pointerId, + &historyCount, + penInfoHistory.data())) { + qWarning() << "GetPointerPenInfoHistory() failed:" << qt_error_string(); + return false; + } + + // history frames are returned with the most recent frame first so we iterate backwards + bool result = true; + for (auto it = penInfoHistory.rbegin(), end = penInfoHistory.rend(); it != end; ++it) { + result &= translatePenEvent(window, hwnd, et, msg, &(*(it))); + } + return result; + } + return translatePenEvent(window, hwnd, et, msg, &penInfo); } } |