Method: Wuffl::Actions.get_resolution

Defined in:
lib/wuffl/actions.rb

.get_resolution ⇒ Object

get the resolution of the display



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# File 'lib/wuffl/actions.rb', line 20

def self.get_resolution

   operating_system = get_op_sys

  case operating_system
    
  when 'windows'
    output_dimensions = `wmic path Win32_VideoController get VideoModeDescription,CurrentVerticalResolution,CurrentHorizontalResolution /format:value`
     begin_hor_res = output_dimensions.index("HorizontalResolution")
     begin_ver_res = output_dimensions.index("VerticalResolution")
     begin_video_mode = output_dimensions.index("VideoMode")
     length_hor = "HorizontalResolution=".length
     length_ver = "VerticalResolution=".length
     length_video = "VideoMode=".length
     char_hor = output_dimensions[begin_hor_res + length_hor]
     char_ver = output_dimensions[begin_ver_res + length_ver]
     char_video = output_dimensions[begin_video_mode + length_video]
     if char_hor != char_hor.to_i.to_s
       output_dimensions.sub!("HorizontalResolution", "")
     end
     if char_ver != char_ver.to_i.to_s
       output_dimensions.sub!("VerticalResolution", "")
     end
     if char_video != char_video.to_i.to_s
       output_dimensions.sub!("VideoMode", "")
     end

    # Horizontal Resolution of the screen
    hor_res_begin_index = output_dimensions.index("HorizontalResolution") + "HorizontalResolution=".length
    hor_res_end_index = output_dimensions.index("CurrentVertical") - 3
    win_width = output_dimensions.slice(hor_res_begin_index..hor_res_end_index).to_i

    # Vertical Resolution of the screen
    ver_res_begin_index = output_dimensions.index("VerticalResolution") + "VerticalResolution=".length
    ver_res_end_index = output_dimensions.index("VideoMode") - 3
    win_height = output_dimensions.slice(ver_res_begin_index..ver_res_end_index).to_i

  else
    if operating_system == "mac"
      output_dimensions = `system_profiler SPDisplaysDataType |grep Resolution`.chomp.tr(" ", "")      
      end_index = output_dimensions.index("Retina") - 1
    elsif operating_system == "linux"
      output_dimensions = `xdpyinfo | grep dimensions`.chomp.tr(" ", "")
      end_index = output_dimensions.index("p") - 1
    end
    start_index = output_dimensions.index(":") + 1
    resolution = output_dimensions.slice(start_index..end_index)
    win_width = resolution.slice(0..resolution.index("x")-1).to_i
    win_height = resolution.slice(resolution.index("x")+1.. resolution.length-1).to_i
  end  

  return [win_width, win_height]
end