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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/HashTable.h>
#include <LibGUI/GModelIndex.h>
namespace GUI {
class AbstractView;
class ModelSelection {
public:
ModelSelection(AbstractView& view)
: m_view(view)
{
}
int size() const { return m_indexes.size(); }
bool is_empty() const { return m_indexes.is_empty(); }
bool contains(const ModelIndex& index) const { return m_indexes.contains(index); }
bool contains_row(int row) const
{
for (auto& index : m_indexes) {
if (index.row() == row)
return true;
}
return false;
}
void set(const ModelIndex&);
void add(const ModelIndex&);
void toggle(const ModelIndex&);
bool remove(const ModelIndex&);
void clear();
template<typename Callback>
void for_each_index(Callback callback)
{
for (auto& index : indexes())
callback(index);
}
template<typename Callback>
void for_each_index(Callback callback) const
{
for (auto& index : indexes())
callback(index);
}
Vector<ModelIndex> indexes() const
{
Vector<ModelIndex> selected_indexes;
for (auto& index : m_indexes)
selected_indexes.append(index);
return selected_indexes;
}
// FIXME: This doesn't guarantee that what you get is the lowest or "first" index selected..
ModelIndex first() const
{
if (m_indexes.is_empty())
return {};
return *m_indexes.begin();
}
private:
AbstractView& m_view;
HashTable<ModelIndex> m_indexes;
};
}
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