module Rubygoo
  class CheckBox < Widget
    attr_accessor :checked
    can_fire :checked
    def initialize(opts={})
      super opts
    end

    def added()
      @checked = false
      @color = theme_property :color
      @bg_color = theme_property :bg_color
      @border_color = theme_property :border_color
      @focus_color = theme_property :focus_color
      @checked_color = theme_property :checked_color

      @rect = Rect.new [@x-@x_pad,@y-@y_pad,@w+2*@x_pad,@h+2*@y_pad]
    end

    def checked?()
      @checked
    end

    def toggle()
      if checked?
        uncheck
      else
        check
      end
    end

    def check()
      @checked = true
      fire :checked
    end

    def uncheck()
      @checked = false
      fire :checked
    end

    # called when there is a mouse click
    def mouse_up(event)
      toggle
    end

    # called when a key press is sent to us
    def key_pressed(event)
      case event.data[:key]
      when K_SPACE
        toggle
      end
    end

    def draw(screen)
      if @focussed
        screen.fill @focus_color, @rect
      elsif @bg_color
        screen.fill @bg_color, @rect
      end

      if @checked
        screen.fill @checked_color, @rect.inflate(-@x_pad,-@y_pad)
      end

      if @border_color
        x1 = @rect[0]
        y1 = @rect[1]
        x2 = @rect[2] + x1
        y2 = @rect[3] + y1
        screen.draw_box x1, y1, x2, y2, @border_color
      end
    end
  end
end