Class: Dedalus::ApplicationViewComposer

Inherits:
Object
  • Object
show all
Includes:
Geometer::DimensionHelpers, Geometer::PointHelpers
Defined in:
lib/dedalus/app_view_composer.rb

Instance Method Summary collapse

Instance Method Details

#click_molecule(structure, window_dims, mouse_position:) ⇒ Object 



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# File 'lib/dedalus/app_view_composer.rb', line 30

def click_molecule(structure, window_dims, mouse_position:)
  send_molecule(structure, window_dims, mouse_position: mouse_position, message: :click)
end

#hover_molecule(structure, window_dims, mouse_position:) ⇒ Object 



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# File 'lib/dedalus/app_view_composer.rb', line 26

def hover_molecule(structure, window_dims, mouse_position:)
  send_molecule(structure, window_dims, mouse_position: mouse_position, message: :hover)
end

#render!(structure, dims) ⇒ Object 



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# File 'lib/dedalus/app_view_composer.rb', line 34

def render!(structure, dims)
  traverse(structure, origin: [0,0], dimensions: dims, render: true) do
    on_atom do |atom, origin:, dimensions:, freeform:, z_index:|
      if atom.background_color
        atom.draw_bounding_box(
          color: atom.background_color,
          origin: origin,
          dimensions: dimensions
        )
      end

      # TODO may need to do this to get click/hover events for sprites?
      if freeform # then offset by origin 
        x0,y0 = *origin
        x,y = *atom.position
        atom.position = [x+x0,y+y0]
      else
        atom.position = origin
      end

      atom.z_order = z_index

      atom.render
    end

    on_element do |element, origin:, dimensions:, z_index:|
      if element.background_color
        element.draw_bounding_box(
          color: element.background_color,
          origin: origin,
          dimensions: dimensions
        )
      end

      element.position = origin
    end
  end
end

#send_molecule(structure, window_dims, mouse_position:, message:) ⇒ Object 



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# File 'lib/dedalus/app_view_composer.rb', line 11

def send_molecule(structure, window_dims, mouse_position:, message:)
  mouse_coord = coord(*mouse_position)

  traverse(structure, origin: [0,0], dimensions: window_dims, render: false) do
    on_molecule do |molecule, origin:, dimensions:, z_index:|
      element_bounding_box = Geometer::Rectangle.new(coord(*origin), dim(*dimensions))
      mouse_overlap = element_bounding_box.contains?(mouse_coord) rescue false # could get bad coords...
      if mouse_overlap
        molecule.position = origin
        molecule.send(message)
      end
    end
  end
end

#traverse(structure, origin: [0,0], dimensions:, render: false, &blk) ⇒ Object 



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# File 'lib/dedalus/app_view_composer.rb', line 6

def traverse(structure, origin: [0,0], dimensions:, render: false, &blk)
  traversal = ViewTraversal.new(&blk)
  traversal.walk!(structure, origin: origin, dimensions: dimensions, render: render)
end