Method copy

src/core/virtual_path.cpp:619–684

}

void VirtualPath::copy(
        const SplitPathCoord& first,
        const SplitPathCoord& last,
        MapCoordVector& out_coords ) const
{
	Q_ASSERT(!empty());
	Q_ASSERT(first.path_coords == &path_coords);
	Q_ASSERT(last.path_coords == &path_coords);
	
	auto& flags  = coords.flags;
	
	// Handle first coordinate and its flags.
	if (out_coords.empty() ||
	    out_coords.back().isHolePoint() ||
	    !out_coords.back().isPositionEqualTo(MapCoord(first.pos)) )
	{
		out_coords.emplace_back(first.pos);
	}
	
	auto first_flags = out_coords.back().flags() & MapCoord::MaskCopiedFlagsAtStart;
	if (first.param == 0.0f)
		first_flags |= flags[first.index].flags() & MapCoord::MaskCopiedFlagsAtStart;
	out_coords.back().setFlags(first_flags);
	
	if (first.index == last.index)
	{
		out_coords.back().setCurveStart(last.is_curve_end && last.param != first.param);
	}
	else
	{
		out_coords.back().setCurveStart(first.is_curve_start);
		
		auto stop_index = last.index;
		if (last.param == 0.0f)
		{
			stop_index -= last.is_curve_end ? 3 : 1;
		}
		
		auto index = first.index + 1;
		if (first.is_curve_start)
		{
			out_coords.emplace_back(first.curve_start[0]);
			out_coords.emplace_back(first.curve_start[1]);
			index += 2;
		}
		
		for (; index <= stop_index; ++index)
		{
			out_coords.emplace_back(coords[index]);
			out_coords.back().setFlags(flags[index].flags());
		}
	}
		
	if (out_coords.back().isCurveStart())
	{
		Q_ASSERT(last.is_curve_end);
		out_coords.emplace_back(last.curve_end[0]);
		out_coords.emplace_back(last.curve_end[1]);