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Win32 specific: Workaround for tooltips over Tree Controls displayed

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over excessively long tree control items, stealing the window focus.

In case the Tab was reparented from the MainFrame to the floating dialog,
the tooltip created by the Tree Control before reparenting is not reparented,
but it still points to the MainFrame. If the tooltip pops up, the MainFrame
is incorrectly focussed, stealing focus from the floating dialog.

The workaround is to delete the tooltip control.
Vojtech tried to reparent the tooltip control, but it did not work,
and if the Tab was later reparented back to MainFrame, the tooltip was displayed
at an incorrect position, therefore it is safer to just discard the tooltip control
altogether.
This commit is contained in:
bubnikv 2020-10-01 19:58:23 +02:00
parent 0bdfb6ab92
commit f35efb8fe5
1 changed files with 25 additions and 0 deletions
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25
src/slic3r/GUI/Tab.cpp
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@ -394,6 +394,31 @@ void Tab::OnActivate()
Fit();
m_size_move *= -1;
#endif // __WXOSX__
#ifdef __WXMSW__
// Workaround for tooltips over Tree Controls displayed over excessively long
// tree control items, stealing the window focus.
//
// In case the Tab was reparented from the MainFrame to the floating dialog,
// the tooltip created by the Tree Control before reparenting is not reparented,
// but it still points to the MainFrame. If the tooltip pops up, the MainFrame
// is incorrectly focussed, stealing focus from the floating dialog.
//
// The workaround is to delete the tooltip control.
// Vojtech tried to reparent the tooltip control, but it did not work,
// and if the Tab was later reparented back to MainFrame, the tooltip was displayed
// at an incorrect position, therefore it is safer to just discard the tooltip control
// altogether.
HWND hwnd_tt = TreeView_GetToolTips(m_treectrl->GetHandle());
if (hwnd_tt) {
HWND hwnd_toplevel = find_toplevel_parent(m_treectrl)->GetHandle();
HWND hwnd_parent = ::GetParent(hwnd_tt);
if (hwnd_parent != hwnd_toplevel) {
::DestroyWindow(hwnd_tt);
TreeView_SetToolTips(m_treectrl->GetHandle(), nullptr);
}
}
#endif
}
void Tab::update_labels_colour()