Method: MiniGL::Button#draw

Defined in:
lib/minigl/forms.rb

#draw(alpha = 0xff, z_index = 0) ⇒ Object

Draws the button in the screen.

Parameters:

alpha

The opacity with which the button will be drawn. Allowed values vary between 0 (fully transparent) and 255 (fully opaque).

z_index

The z-order to draw the object. Objects with larger z-orders will be drawn on top of the ones with smaller z-orders.



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# File 'lib/minigl/forms.rb', line 220

def draw(alpha = 0xff, z_index = 0)
  return unless @visible

  color = (alpha << 24) | 0xffffff
  text_color =
    if @enabled
      if @state == :down
        @down_text_color
      else
        @state == :over ? @over_text_color : @text_color
      end
    else
      @disabled_text_color
    end
  text_color = (alpha << 24) | text_color
  @img[@img_index].draw @x, @y, z_index, 1, 1, color if @img
  if @text
    if @center_x or @center_y
      rel_x = @center_x ? 0.5 : 0
      rel_y = @center_y ? 0.5 : 0
      @font.draw_rel @text, @text_x, @text_y, z_index, rel_x, rel_y, 1, 1, text_color
    else
      @font.draw @text, @text_x, @text_y, z_index, 1, 1, text_color
    end
  end
end