Method drawColorSeparation

src/core/renderables/renderable.cpp:418–586

}

void MapRenderables::drawColorSeparation(QPainter* painter, const RenderConfig& config, const MapColor* separation, bool use_color) const
{
	painter->save();
	
	const QPainterPath initial_clip(painter->clipPath());
	const QPainterPath* current_clip = nullptr;
	
	// As soon as the spot color is actually used for drawing (i.e. drawing_started = true),
	// we need to take care of knockouts.
	bool drawing_started = false;
	
	// For each pair of color priority and its renderables collection...
	auto end_of_colors = rend();
	auto color = rbegin();
	while (color != end_of_colors && color->first >= map->getNumColors())
	{
		++color;
	}
	for (; color != end_of_colors; ++color)
	{
		SpotColorComponent drawing_color(map->getColor(color->first), 1.0f);
		
		// Check whether the current color [priority] applies to the current separation.
		if (color->first > MapColor::Reserved)
		{
			if (separation->getPriority() == MapColor::Reserved)
			{
				// Don't process regular colors for the "Reserved" separation.
				continue;
			}
			
			switch (drawing_color.spot_color->getSpotColorMethod())
			{
				case MapColor::UndefinedMethod:
					continue;
				
				case MapColor::SpotColor:
					if (drawing_color.spot_color == separation)
					{
						; // okay
					}
					else if (drawing_started && drawing_color.spot_color->getKnockout())
					{
						drawing_color.factor = 0.0f;
					}
					else
					{
						continue;
					}
					break;
				
				case MapColor::CustomColor:
				{
					// First, check if the renderables draw color to this separation
					// TODO: Use an efficient data structure to avoid reiterating each time a separation is drawn
					const SpotColorComponents& components = drawing_color.spot_color->getComponents();
					for (const auto& component : components)
					{