module ChunkyPNG::Canvas::Drawing

def rect(x0, y0, x1, y1, stroke_color = ChunkyPNG::Color::BLACK, fill_color = ChunkyPNG::Color::TRANSPARENT)

Returns:
  • (ChunkyPNG::Canvas) - Itself, with the rectangle drawn.

Parameters:
  • fill_color (Integer) -- The fill color to use for this rectangle.
  • stroke_color (Integer) -- The line color to use for this rectangle.
  • y1 (Integer) -- The y-coordinate of the second control point.
  • x1 (Integer) -- The x-coordinate of the second control point.
  • y0 (Integer) -- The y-coordinate of the first control point.
  • x0 (Integer) -- The x-coordinate of the first control point. 
def rect(x0, y0, x1, y1, stroke_color = ChunkyPNG::Color::BLACK, fill_color = ChunkyPNG::Color::TRANSPARENT)

  stroke_color = ChunkyPNG::Color.parse(stroke_color)
  fill_color   = ChunkyPNG::Color.parse(fill_color)

  # Fill
  unless fill_color == ChunkyPNG::Color::TRANSPARENT
    [x0, x1].min.upto([x0, x1].max) do |x|
      [y0, y1].min.upto([y0, y1].max) do |y|
        compose_pixel(x, y, fill_color)
      end
    end
  end
  
  # Stroke
  line(x0, y0, x0, y1, stroke_color, false)
  line(x0, y1, x1, y1, stroke_color, false)
  line(x1, y1, x1, y0, stroke_color, false)
  line(x1, y0, x0, y0, stroke_color, false)
  
  return self
end