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Telegram/SourceFiles/ui/text/format_song_name.cpp

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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 "ui/text/format_song_name.h"
+
+namespace Ui::Text {
+
+namespace {
+
+FormatSongName::ComposedName ComputeComposedName(
+		const QString &filename,
+		const QString &songTitle,
+		const QString &songPerformer) {
+	const auto unknown = u"Unknown Track"_q;
+	if (songTitle.isEmpty() && songPerformer.isEmpty()) {
+		return {
+			.title = filename.isEmpty() ? unknown : filename,
+			.performer = QString(),
+		};
+	}
+
+	if (songPerformer.isEmpty()) {
+		return {
+			.title = songTitle,
+			.performer = QString(),
+		};
+	}
+
+	return {
+		.title = (songTitle.isEmpty() ? unknown : songTitle),
+		.performer = songPerformer,
+	};
+}
+
+} // namespace
+
+FormatSongName::FormatSongName(
+	const QString &filename,
+	const QString &songTitle,
+	const QString &songPerformer)
+: _composedName(ComputeComposedName(filename, songTitle, songPerformer)) {
+}
+
+FormatSongName::ComposedName FormatSongName::composedName() const {
+	return _composedName;
+}
+
+QString FormatSongName::string() const {
+	const auto &[title, performer] = _composedName;
+	const auto dash = (title.isEmpty() || performer.isEmpty())
+		? QString()
+		: _noDash
+		? QString(' ')
+		: QString::fromUtf8(" \xe2\x80\x93 ");
+	return performer + dash + title;
+}
+
+void FormatSongName::setNoDash(bool noDash) {
+	_noDash = noDash;
+}
+
+TextWithEntities FormatSongName::textWithEntities(
+		bool boldOnlyPerformer) const {
+	TextWithEntities result;
+	result.text = string();
+	if (!boldOnlyPerformer || !_composedName.performer.isEmpty()) {
+		result.entities.push_back({
+			EntityType::Semibold,
+			0,
+			_composedName.performer.isEmpty()
+				? int(result.text.size())
+				: int(_composedName.performer.size()),
+		});
+	}
+	return result;
+}
+
+} // namespace Ui::Text