matplotex

defmodule Matplotex.Element.Stencil do
@moduledoc false
  def line(line) do
    ~s(
    <line
    type="#{line.type}"
    x1="#{line.x1}"
    y1="#{line.y1}"
    x2="#{line.x2}"
    y2="#{line.y2}"
    fill="#{line.fill}"
    stroke="#{line.stroke}"
    stroke-width="#{line.stroke_width}"
    shape-rendering="#{line.shape_rendering}"
    stroke-linecap="#{line.stroke_linecap}"/>
    )
  end

  def label(label) do
    """
        <text tag="#{label.type}"
         fill="#{label.fill}"
         x="#{label.x}"
         y="#{label.y}"
         font-size="#{label.font_size}"
         font-weight="#{label.font_weight}"
         font-family="#{label.font_family}"
         font-style="#{label.font_style}"
         transform="#{rotate(label.rotate, label.x, label.y)}"
         dominant-baseline="#{label.dominant_baseline}">
         #{label.text}
        </text>
    """
  end

  def rect(rect) do
    ~s(
    <rect stroke="#{rect.stroke}"
    fill="#{rect.color}"
    x="#{rect.x}"
    y="#{rect.y}"
    width="#{rect.width}"
    height="#{rect.height}"
    stroke-width="#{rect.stroke_width}"
    filter="">
    </rect>)
  end

  def tick(tick) do
    ~s(
    #{line(tick.tick_line)}
    #{label(tick.label)}
    )
  end

  def slice(slice) do
    """
    <path d="M #{slice.x1} #{slice.y1}
     A #{slice.radius} #{slice.radius} 0 0 1 #{slice.x2} #{slice.y2}
     L #{slice.cy} #{slice.cx}
     Z" fill="#{slice.color}" />
    """
  end

  def legend(legend) do
    """
    #{rect(legend)}
    #{label(legend.label)}
    """
  end

  defp rotate(nil, _, _), do: nil
  defp rotate(rotate, x, y), do: "rotate(#{rotate}, #{x}, #{y})"
end