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47 lines
936 B
C++
47 lines
936 B
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGUI/Model.h>
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#include <LibGUI/Variant.h>
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namespace GUI {
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Variant ModelIndex::data(ModelRole role) const
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{
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if (!is_valid())
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return {};
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VERIFY(model());
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return model()->data(*this, role);
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}
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bool ModelIndex::is_parent_of(ModelIndex const& child) const
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{
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auto current_index = child.parent();
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while (current_index.is_valid()) {
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if (current_index == *this)
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return true;
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current_index = current_index.parent();
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}
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return false;
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}
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ModelIndex ModelIndex::sibling(int row, int column) const
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{
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if (!is_valid())
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return {};
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VERIFY(model());
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return model()->index(row, column, parent());
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}
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ModelIndex ModelIndex::sibling_at_column(int column) const
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{
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if (!is_valid())
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return {};
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return sibling(row(), column);
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}
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}
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