Method UpdateBackground

Xaml/Controls/ColorPickerSlider.cpp:183–218

	}

	void ColorPickerSlider::UpdateBackground(txmp::HsvColor color)
	{
		const auto orientation = Orientation();
		if (const auto rect = orientation == wuxc::Orientation::Vertical ? m_VerticalTrackRect : m_HorizontalTrackRect)
		{
			auto width = static_cast<int32_t>(rect.ActualWidth());
			auto height = static_cast<int32_t>(rect.ActualHeight());

			if (width == 0 || height == 0)
			{
				if (cachedSize != wf::Size { })
				{
					width = static_cast<int32_t>(cachedSize.Width);
					height = static_cast<int32_t>(cachedSize.Height);
				}
			}
			else
			{
				cachedSize = { static_cast<float>(width), static_cast<float>(height) };
			}

			if (width != 0 && height != 0)
			{
				double renderScale = 1.0;
				if (const auto root = rect.XamlRoot())
				{
					renderScale = root.RasterizationScale();

					width = static_cast<int32_t>(width * renderScale);
					height = static_cast<int32_t>(height * renderScale);
				}

				RenderBackground(rect, color, orientation, width, height, renderScale);
			}
		}
	}

	fire_and_forget ColorPickerSlider::RenderBackground(weak_ref<wux::Shapes::Rectangle> rect_weak, txmp::HsvColor color, wuxc::Orientation orientation, int32_t width, int32_t height, double renderScale)
	{