72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "overview/overview_layout.h"
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namespace Overview::Layout {
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class MosaicLayout final {
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public:
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struct FoundItem {
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ClickHandlerPtr link;
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ItemBase *item = nullptr;
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int index = -1;
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};
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MosaicLayout();
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[[nodiscard]] int rowHeightAt(int row) const;
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[[nodiscard]] int countDesiredHeight(int newWidth);
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[[nodiscard]] FoundItem findByPoint(const QPoint &globalPoint) const;
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[[nodiscard]] QRect findRect(int index) const;
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void addItems(const std::vector<not_null<ItemBase*>> &items);
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void setRightSkip(int rightSkip);
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void setFullWidth(int w);
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void setOffset(int left, int top);
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[[nodiscard]] bool empty() const;
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[[nodiscard]] int rowsCount() const;
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[[nodiscard]] int columnsCountAt(int row) const;
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[[nodiscard]] not_null<ItemBase*> itemAt(int row, int column) const;
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[[nodiscard]] not_null<ItemBase*> itemAt(int index) const;
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[[nodiscard]] ItemBase *maybeItemAt(int row, int column) const;
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[[nodiscard]] ItemBase *maybeItemAt(int index) const;
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void clearRows(bool resultsDeleted);
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void preloadImages();
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void paint(
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Fn<void(const not_null<ItemBase*>, QPoint)> paintItemCallback,
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const QRect &clip) const;
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private:
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struct Row {
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int maxWidth = 0;
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int height = 0;
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std::vector<ItemBase*> items;
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};
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void addItem(not_null<ItemBase*> item, Row &row, int &sumWidth);
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bool rowFinalize(Row &row, int &sumWidth, bool force);
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void layoutRow(Row &row, int fullWidth);
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int _bigWidth;
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int _width = 0;
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int _rightSkip = 0;
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QPoint _offset;
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std::vector<Row> _rows;
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};
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} // namespace Overview::Layout
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