Method positionRichTextChildren

src/eepp/ui/blocklayouter.cpp:108–245

}

void BlockLayouter::positionRichTextChildren( Graphics::RichText* rt ) {
	const auto& lines = rt->getLines();
	Node* child = mContainer->getFirstChild();

	size_t currentLine = 0;
	size_t currentSpan = 0;

	auto getNextCustomSpan = [&]() -> const RichText::RenderSpan* {
		while ( currentLine < lines.size() ) {
			const auto& line = lines[currentLine];
			while ( currentSpan < line.spans.size() ) {
				const auto& span = line.spans[currentSpan];
				currentSpan++;
				if ( std::holds_alternative<RichText::CustomBlock>( span.block ) )
					return &span;
			}
			currentSpan = 0;
			currentLine++;
		}
		return nullptr;
	};

	Int64 curCharIdx = 0;

	auto processWidget = [&]( UIWidget* widget, auto& processWidgetRef ) -> Rectf {
		constexpr Float maxF = std::numeric_limits<Float>::max();
		constexpr Float lowF = std::numeric_limits<Float>::lowest();
		Rectf bounds( maxF, maxF, lowF, lowF );

		Vector2f offset;
		Node* p = widget->getParent();
		while ( p && p != mContainer ) {
			offset += p->isWidget() ? p->asType<UIWidget>()->getPixelsPosition() : p->getPosition();
			p = p->getParent();
		}

		if ( widget->isType( UI_TYPE_TEXTSPAN ) ) {
			UITextSpan* textSpan = widget->asType<UITextSpan>();
			Int64 startChar = curCharIdx;
			Int64 endChar = curCharIdx;
			if ( !textSpan->getText().empty() ) {
				endChar += textSpan->getText().length();
				curCharIdx = endChar;
			}

			auto& hitBoxes = textSpan->getHitBoxes();
			hitBoxes.clear();

			if ( startChar < endChar ) {
				for ( const auto& line : lines ) {
					bool passedText = false;
					for ( const auto& rspan : line.spans ) {
						if ( rspan.startCharIndex >= startChar && rspan.endCharIndex <= endChar ) {
							Rectf hb( mContainer->getPixelsPadding().Left + rspan.position.x,
									  mContainer->getPixelsPadding().Top + line.y +
										  rspan.position.y,
									  mContainer->getPixelsPadding().Left + rspan.position.x +
										  rspan.size.getWidth(),