serenity/Userland/Demos/ModelGallery/BasicModel.cpp
Tim Ledbetter 556c4ac358 LibGUI: Allow FilteringProxyModel to optionally sort results by score
When the `FilteringOptions::SortByScore` flag is set, filtered indices
are sorted by match score in descending order, meaning the most
relevant results should appear first.

The default behavior of FilteringProxyModel is unchanged.
2023-05-29 10:47:48 -06:00

73 lines
1.7 KiB
C++

/*
* Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "BasicModel.h"
GUI::Variant BasicModel::data(GUI::ModelIndex const& index, GUI::ModelRole role) const
{
if (role != GUI::ModelRole::Display)
return {};
if (!is_within_range(index))
return {};
return m_items.at(index.row());
}
GUI::Model::MatchResult BasicModel::data_matches(GUI::ModelIndex const& index, GUI::Variant const& data) const
{
if (!is_within_range(index))
return { TriState::False };
if (!data.is_string())
return { TriState::False };
auto& value = m_items.at(index.row());
if (value.contains(data.as_string()))
return { TriState::True };
return { TriState::False };
}
void BasicModel::invalidate()
{
Model::invalidate();
if (on_invalidate)
on_invalidate();
}
GUI::ModelIndex BasicModel::index(int row, int column, GUI::ModelIndex const& parent) const
{
if (column != 0)
return {};
if (parent.is_valid())
return {};
if (row < 0 || row >= static_cast<int>(m_items.size()))
return {};
return create_index(row, column);
}
void BasicModel::add_item(DeprecatedString const& item)
{
begin_insert_rows({}, m_items.size(), m_items.size());
m_items.append(item);
end_insert_rows();
did_update(UpdateFlag::DontInvalidateIndices);
}
void BasicModel::remove_item(GUI::ModelIndex const& index)
{
if (!index.is_valid() || !is_within_range(index))
return;
begin_delete_rows({}, index.row(), index.row());
m_items.remove(index.row());
end_delete_rows();
did_update(UpdateFlag::DontInvalidateIndices);
}