UIElement:draw_self

Advanced

Draws this element and all its descendants.

This function is called within draw_tree, after the relevant transformations (layout, translation, scale, rotation) have been pushed on the LOVE graphics stack.

You may override this method to implement new element types that have their own way of drawing content (particles, splines, etc.).

If you override this method on a Container or Wrapper element, make sure to call :draw(), not :draw_self(), on its children.

Usage

ui_element:draw_self()

Examples

This example is the implementation of draw_self for Image elements:

Image.draw_self = function(self)
  local w, h = self:size();
  if self._texture then
    love.graphics.draw(self._texture, 0, 0, w, h);
  else
    love.graphics.rectangle("fill", 0, 0, w, h);
  end
end

This example is the implementation of draw_self for Switcher elements:

Switcher.draw_self = function(self)
  if self.transition then
    local width, height = self:size();
    self.transition:draw(self.transition_progress, width, height, self.draw_previous, self.draw_active);
  else
    self._active_child:draw();
  end
end