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LibGUI: Add convenient helpers for getting the sibling of a ModelIndex

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This commit is contained in:
Andreas Kling 2021-04-11 12:14:46 +02:00
parent 10d9a8db71
commit 0c02dfcad5
2 changed files with 20 additions and 2 deletions
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17
Userland/Libraries/LibGUI/ModelIndex.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -39,4 +39,19 @@ Variant ModelIndex::data(ModelRole role) const
return model()->data(*this, role);
}
ModelIndex ModelIndex::sibling(int row, int column) const
{
if (!is_valid())
return {};
VERIFY(model());
return model()->index(row, column, parent());
}
ModelIndex ModelIndex::sibling_at_column(int column) const
{
if (!is_valid())
return {};
return sibling(row(), column);
}
}