diff options
Diffstat (limited to 'src/gui/kernel/qplatformwindow.cpp')
| -rw-r--r-- | src/gui/kernel/qplatformwindow.cpp | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/gui/kernel/qplatformwindow.cpp b/src/gui/kernel/qplatformwindow.cpp index 2bc6b01b3e..edd9a3d436 100644 --- a/src/gui/kernel/qplatformwindow.cpp +++ b/src/gui/kernel/qplatformwindow.cpp @@ -466,12 +466,18 @@ bool QPlatformWindow::frameStrutEventsEnabled() const \li Mouse grab: Qt expects windows to automatically grab the mouse if the user presses a button until the button is released. Automatic grab should be released if some window is explicitly grabbed. - \li Enter/Leave events: Enter and leave events should be sent independently of - explicit mouse grabs (\c{setMouseGrabEnabled()}). That is, if the mouse leaves - a window that has explicit mouse grab, a leave event should be sent and other - windows should get enter/leave events as well as the mouse traverses them. - For automatic mouse grab, however, a leave event should be sent when the - button is released. + \li Enter/Leave events: If there is a window explicitly grabbing mouse events + (\c{setMouseGrabEnabled()}), enter and leave events should only be sent to the + grabbing window when mouse cursor passes over the grabbing window boundary. + Other windows will not receive enter or leave events while the grab is active. + While an automatic mouse grab caused by a mouse button press is active, no window + will receive enter or leave events. When the last mouse button is released, the + autograbbing window will receive leave event if mouse cursor is no longer within + the window boundary. + When any grab starts, the window under cursor will receive a leave event unless + it is the grabbing window. + When any grab ends, the window under cursor will receive an enter event unless it + was the grabbing window. \li Window positioning: When calling \c{QWindow::setFramePos()}, the flag \c{QWindowPrivate::positionPolicy} is set to \c{QWindowPrivate::WindowFrameInclusive}. This means the position includes the window frame, whose size is at this point |