Class: Glimmer::LibUI::Shape::Bezier

Inherits:
Glimmer::LibUI::Shape show all
Defined in:
lib/glimmer/libui/shape/bezier.rb

Constant Summary

Constants inherited from Glimmer::LibUI::Shape

KEYWORD_ALIASES

Instance Attribute Summary

Attributes inherited from Glimmer::LibUI::Shape

#args, #block, #content_added, #keyword, #parent

Instance Method Summary collapse

Methods inherited from Glimmer::LibUI::Shape

#absolute_c1_x, #absolute_c1_y, #absolute_c2_x, #absolute_c2_y, #absolute_end_x, #absolute_end_y, #absolute_point_array, #absolute_x, #absolute_x_center, #absolute_y, #absolute_y_center, #area_proxy, #can_handle_listener?, #composite_shape, constant_symbol, #content, create, #destroy, exists?, #fill, #handle_listener, #implicit_path?, #method_missing, parameter_defaults, parameters, #path_proxy, #post_add_content, #post_initialize_child, #redraw, #request_auto_redraw, #respond_to?, shape_class, #stroke, #transform

Methods included from DataBindable

#data_bind, #data_bind_read, #data_bind_write, #data_binding_model_attribute_observer_registrations

Methods included from PerfectShaped

#bounding_box, #contain?, #include?, #move

Methods included from Parent

#children, #post_initialize_child

Constructor Details

#initialize(keyword, parent, args, &block) ⇒ Bezier

Returns a new instance of Bezier.



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# File 'lib/glimmer/libui/shape/bezier.rb', line 31

def initialize(keyword, parent, args, &block)
  args.prepend nil until args.size == 8
  super(keyword, parent, args, &block)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::LibUI::Shape

Instance Method Details

#draw(area_draw_params) ⇒ Object 



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# File 'lib/glimmer/libui/shape/bezier.rb', line 36

def draw(area_draw_params)
  if !parent.is_a?(Figure)
    if include_start_point?
      ::LibUI.draw_path_new_figure(path_proxy.libui, x, y)
    else
      ::LibUI.draw_path_new_figure(path_proxy.libui, 0, 0)
    end
  end
  ::LibUI.draw_path_bezier_to(path_proxy.libui, c1_x, c1_y, c2_x, c2_y, end_x, end_y)
  super
end

#include_start_point? ⇒ Boolean

Indicates if bezier is not part of a figure and yet it includes the start point in addition to other points

Returns:

  • (Boolean) 


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# File 'lib/glimmer/libui/shape/bezier.rb', line 49

def include_start_point?
  x && y
end

#move_by(x_delta, y_delta) ⇒ Object 



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# File 'lib/glimmer/libui/shape/bezier.rb', line 53

def move_by(x_delta, y_delta)
  self.x += x_delta
  self.y += y_delta
  self.c1_x += x_delta
  self.c1_y += y_delta
  self.c2_x += x_delta
  self.c2_y += y_delta
  self.end_x += x_delta
  self.end_y += y_delta
end

#perfect_shape ⇒ Object 



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# File 'lib/glimmer/libui/shape/bezier.rb', line 64

def perfect_shape
  require 'perfect-shape'
  the_perfect_shape_dependencies = perfect_shape_dependencies
  if the_perfect_shape_dependencies != @perfect_shape_dependencies
    absolute_x, absolute_y, absolute_c1_x, absolute_c1_y, absolute_c2_x, absolute_c2_y, absolute_end_x, absolute_end_y = @perfect_shape_dependencies = the_perfect_shape_dependencies
    @perfect_shape = PerfectShape::CubicBezierCurve.new(points: [absolute_x, absolute_y, absolute_c1_x, absolute_c1_y, absolute_c2_x, absolute_c2_y, absolute_end_x, absolute_end_y].compact)
  end
  @perfect_shape
end

#perfect_shape_dependencies ⇒ Object 



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# File 'lib/glimmer/libui/shape/bezier.rb', line 74

def perfect_shape_dependencies
  [absolute_x, absolute_y, absolute_c1_x, absolute_c1_y, absolute_c2_x, absolute_c2_y, absolute_end_x, absolute_end_y]
end