class Glimmer::LibUI::Shape::Line

Line to use as part of a figure (when having 2 args) or independently (when having 4 args representing start point x/y and end point x/y)

Public Instance Methods

draw(area_draw_params) click to toggle source
Calls superclass method Glimmer::LibUI::Shape#draw
# File lib/glimmer/libui/shape/line.rb, line 33
def draw(area_draw_params)
  if parent.is_a?(Figure)
    ::LibUI.draw_path_line_to(path_proxy.libui, x, y)
  else
    if include_start_point?
      ::LibUI.draw_path_new_figure(path_proxy.libui, x, y)
      ::LibUI.draw_path_line_to(path_proxy.libui, end_x, end_y)
    else
      ::LibUI.draw_path_new_figure(path_proxy.libui, 0, 0)
      ::LibUI.draw_path_line_to(path_proxy.libui, x, y)
    end
  end
  super
end
include_start_point?() click to toggle source

Indicates if line is not part of a figure and yet it includes the start point in addition to end point

# File lib/glimmer/libui/shape/line.rb, line 49
def include_start_point?
  # if the last 2 args are available, it means that the first 2 args represent the start point
  # if line is part of a figure, then the last 2 args are ignored and it is never assumed to include
  # start point
  !parent.is_a?(Figure) && end_x && end_y
end
perfect_shape() click to toggle source
# File lib/glimmer/libui/shape/line.rb, line 56
def perfect_shape
  perfect_shape_dependencies = [x, y, end_x, end_y]
  if perfect_shape_dependencies != @perfect_shape_dependencies
    x, y, end_x, end_y = @perfect_shape_dependencies = perfect_shape_dependencies
    @perfect_shape = PerfectShape::Line.new(points: [x, y, end_x, end_y].compact)
  end
  @perfect_shape
end