[QTBUG-27550] Too many Enter/leave events generated for native widgets - Qt Bug Tracker

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Details

Type: Bug
Status: Closed
Priority: P2: Important
Resolution: Done
Affects Version/s: 5.0.0 Beta 2
Fix Version/s: 5.1.0 Beta 1
Component/s: Widgets: Widgets and Dialogs
Labels:
None
Environment:
Windows 7 (fixed)
Linux (should be fixed now)
Mac ?

Commits:
bdc0eaae6b47eebbf99bea1034857287fb75aa46 9a90c2232f1e21b3f61da6c3a472380bcb996736 b2c73c73cd0a68aae0586cf447c2612c13aeb52c

Description

Mousing into and out of native widget should only generate enter/leave for that specific widget. However, currently enter/leave is generated for the entire parent chain, e.g.:

// enter combobox
1363 ## Got Leave for: QWidget(0x20bbcf0, name = "centralWidget") 
1364 ## Got Leave for: MainWindow(0x19fb40, name = "MainWindow") 
1367 ## Got Enter for: MainWindow(0x19fb40, name = "MainWindow") 
1369 ## Got Enter for: QWidget(0x20bbcf0, name = "centralWidget") 
1370 ## Got Enter for: QComboBox(0x2118560, name = "comboBox") 

// leave combobox
1685 ## Got Leave for: QComboBox(0x2118560, name = "comboBox") 
1687 ## Got Leave for: QWidget(0x20bbcf0, name = "centralWidget") 
1688 ## Got Leave for: MainWindow(0x19fb40, name = "MainWindow") 
1691 ## Got Enter for: MainWindow(0x19fb40, name = "MainWindow") 
1693 ## Got Enter for: QWidget(0x20bbcf0, name = "centralWidget")