tdesktop/Telegram/SourceFiles/dialogs/dialogs_list.h

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "dialogs/dialogs_row.h"
class PeerData;
namespace Dialogs {
enum class SortMode;
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class List final {
public:
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List(SortMode sortMode, FilterId filterId = 0);
List(const List &other) = delete;
List &operator=(const List &other) = delete;
List(List &&other) = default;
List &operator=(List &&other) = default;
~List() = default;
void clear() {
_rows.clear();
_rowByKey.clear();
}
[[nodiscard]] int size() const {
return _rows.size();
}
[[nodiscard]] bool empty() const {
return _rows.empty();
}
[[nodiscard]] int height() const {
return _rows.empty()
? 0
: (_rows.back()->top() + _rows.back()->height());
}
[[nodiscard]] bool contains(Key key) const {
return _rowByKey.find(key) != _rowByKey.end();
}
[[nodiscard]] Row *getRow(Key key) const {
const auto i = _rowByKey.find(key);
return (i != _rowByKey.end()) ? i->second.get() : nullptr;
}
[[nodiscard]] Row *rowAtY(int y) const;
not_null<Row*> addToEnd(Key key);
Row *adjustByName(Key key);
not_null<Row*> addByName(Key key);
bool moveToTop(Key key);
void adjustByDate(not_null<Row*> row);
bool updateHeight(Key key, float64 narrowRatio);
bool updateHeights(float64 narrowRatio);
bool remove(Key key, Row *replacedBy = nullptr);
using const_iterator = std::vector<not_null<Row*>>::const_iterator;
using iterator = const_iterator;
[[nodiscard]] const_iterator cbegin() const { return _rows.cbegin(); }
[[nodiscard]] const_iterator cend() const { return _rows.cend(); }
[[nodiscard]] const_iterator begin() const { return cbegin(); }
[[nodiscard]] const_iterator end() const { return cend(); }
[[nodiscard]] iterator begin() { return cbegin(); }
[[nodiscard]] iterator end() { return cend(); }
[[nodiscard]] const_iterator cfind(Row *value) const;
[[nodiscard]] const_iterator find(Row *value) const {
return cfind(value);
}
[[nodiscard]] iterator find(Row *value) { return cfind(value); }
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[[nodiscard]] iterator findByY(int y) const;
private:
void adjustByName(not_null<Row*> row);
void rotate(
std::vector<not_null<Row*>>::iterator first,
std::vector<not_null<Row*>>::iterator middle,
std::vector<not_null<Row*>>::iterator last);
SortMode _sortMode = SortMode();
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FilterId _filterId = 0;
float64 _narrowRatio = 0.;
std::vector<not_null<Row*>> _rows;
std::map<Key, std::unique_ptr<Row>> _rowByKey;
};
} // namespace Dialogs