tdesktop/Telegram/SourceFiles/dialogs/ui/dialogs_message_view.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 <any>
class Image;
class HistoryItem;
enum class ImageRoundRadius;
namespace Ui {
} // namespace Ui
namespace HistoryView {
struct ToPreviewOptions;
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struct ItemPreviewImage;
struct ItemPreview;
} // namespace HistoryView
namespace Dialogs::Ui {
using namespace ::Ui;
class MessageView final {
public:
MessageView();
~MessageView();
using ToPreviewOptions = HistoryView::ToPreviewOptions;
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using ItemPreviewImage = HistoryView::ItemPreviewImage;
using ItemPreview = HistoryView::ItemPreview;
void itemInvalidated(not_null<const HistoryItem*> item);
[[nodiscard]] bool dependsOn(not_null<const HistoryItem*> item) const;
void paint(
Painter &p,
not_null<const HistoryItem*> item,
const QRect &geometry,
bool active,
bool selected,
ToPreviewOptions options) const;
private:
struct LoadingContext;
mutable const HistoryItem *_textCachedFor = nullptr;
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mutable Ui::Text::String _senderCache;
mutable Ui::Text::String _textCache;
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mutable std::vector<ItemPreviewImage> _imagesCache;
mutable std::unique_ptr<LoadingContext> _loadingContext;
};
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[[nodiscard]] HistoryView::ItemPreview PreviewWithSender(
HistoryView::ItemPreview &&preview,
const QString &sender);
} // namespace Dialogs::Ui