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Telegram/SourceFiles/data/data_media_rotation.cpp
49 строк
1 KB
John Preston
Allow rotating content in media viewer.
05 фев 2020, 18:37
05 фев 2020, 18:37
4544b09
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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 */ #include "data/data_media_rotation.h" namespace Data { namespace { [[nodiscard]] int NormalizeRotation(int rotation) { const auto result = rotation - ((rotation / 360) - ((rotation < 0) ? 1 : 0)) * 360; Ensures(result >= 0 && result < 360); return result; } } // namespace void MediaRotation::set(not_null<PhotoData*> photo, int rotation) { if (rotation % 360) { _photoRotations[photo] = NormalizeRotation(rotation); } else { _photoRotations.remove(photo); } } int MediaRotation::get(not_null<PhotoData*> photo) const { const auto i = _photoRotations.find(photo); return (i != end(_photoRotations)) ? i->second : 0; } void MediaRotation::set(not_null<DocumentData*> document, int rotation) { if (rotation % 360) { _documentRotations[document] = NormalizeRotation(rotation); } else { _documentRotations.remove(document); } } int MediaRotation::get(not_null<DocumentData*> document) const { const auto i = _documentRotations.find(document); return (i != end(_documentRotations)) ? i->second : 0; } } // namespace Data