Method exportTextSymbol

src/fileformats/ocd_file_export.cpp:1807–1866

template< class Format, class OcdTextSymbol >
void OcdFileExport::exportTextSymbol(OcdFile<Format>& file, const TextSymbol* text_symbol)
{
	auto symbol_number = symbol_numbers.at(text_symbol);
	
	text_format_mapping.push_back({ text_symbol, TextObject::AlignLeft, 0, symbol_number });
	text_format_mapping.push_back({ text_symbol, TextObject::AlignHCenter, 0, symbol_number });
	text_format_mapping.push_back({ text_symbol, TextObject::AlignRight, 0, symbol_number });
	auto text_format = text_format_mapping.end() - 3;
	auto count = [text_format](const auto* object) {
		auto alignment = static_cast<const TextObject*>(object)->getHorizontalAlignment();
		switch (alignment)
		{
		case TextObject::AlignLeft:
			text_format->count++;
			break;
		case TextObject::AlignHCenter:
			(text_format+1)->count++;
			break;
		case TextObject::AlignRight:
			(text_format+2)->count++;
			break;
		}
	};
	map->applyOnMatchingObjects(count, ObjectOp::HasSymbol{text_symbol});
	
	// The most frequent usage is to get the regular number.
	std::sort(text_format, end(text_format_mapping), [](const auto& a, const auto& b) { return a.count > b.count; });
	
	text_format = text_format_mapping.end() - 3;
	if (text_format->count == 0)
		text_format->alignment = TextObject::AlignHCenter;  // default if unused: centered
	auto ocd_symbol = exportTextSymbol<typename Format::TextSymbol>(text_symbol, text_format->symbol_number, text_format->alignment);
	FILEFORMAT_ASSERT(!ocd_symbol.isEmpty());
	file.symbols().insert(ocd_symbol);
	
	++text_format;
	if (text_format->count > 0)
	{
		text_format->symbol_number = makeUniqueSymbolNumber(symbol_number);
		temporary_symbols.emplace_back(new PointSymbol());
		symbol_numbers[temporary_symbols.back().get()] = text_format->symbol_number;
		ocd_symbol = exportTextSymbol<typename Format::TextSymbol>(text_symbol, text_format->symbol_number, text_format->alignment);
		FILEFORMAT_ASSERT(!ocd_symbol.isEmpty());
		file.symbols().insert(ocd_symbol);
		
		++text_format;
		if (text_format->count > 0)
		{
			text_format->symbol_number = makeUniqueSymbolNumber(symbol_number);
			temporary_symbols.emplace_back(new PointSymbol());
			symbol_numbers[temporary_symbols.back().get()] = text_format->symbol_number;
			ocd_symbol = exportTextSymbol<typename Format::TextSymbol>(text_symbol, text_format->symbol_number, text_format->alignment);
			FILEFORMAT_ASSERT(!ocd_symbol.isEmpty());
			file.symbols().insert(ocd_symbol);
			
			++text_format;
		}
	}