Class: SodaScreenShot

Inherits:
Object
  • Object
show all
Defined in:
lib/SodaScreenShot.rb

Overview

SodaScreenShot – Class This class is for taking desktop screen shots of the current running os.

	Currently only Winows & Linux are supported.  Really any unix platform

running X11 is supported, they just have to be added to the case.

Input: dir: This is the directory to store the snapshots in.

Constant Summary collapse

LINUX_XWD_BIN = 
"xwd"
LINUX_CONVERT_BIN = 
"convert"
OUTPUT_FILE = 
"screenshot-"

Instance Method Summary collapse

Constructor Details

#initialize(dir) ⇒ SodaScreenShot

Returns a new instance of SodaScreenShot.



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# File 'lib/SodaScreenShot.rb', line 46

def initialize(dir)
	os = nil
	err = nil
	time = Time.now()
	time = time.to_i()
	hostname = "#{ENV['HOSTNAME']}"
	@outputfile = nil

	if (!File.exist?(dir))
		raise "Failed to find needed diectory: '#{dir}!'\n"
	end

     if ( (hostname.empty?) || (hostname.length < 5) )
        hostname = `hostname`
        hostname = hostname.chomp()
     end

	os = SodaUtils.GetOsType()
	case (os)
		when /linux/i
			xwd = FindLinuxXwd()
			if (xwd == nil)
				raise "Failed to find needed program: 'xwd'!\n"
			end
			
			@outputfile = "#{dir}/#{OUTPUT_FILE}#{time}-#{hostname}.xwd"
			cmd = "#{xwd} -root -out #{@outputfile}"
			err = Kernel.system(cmd)
			if (!err)
				raise "Failed trying to take screenshot!\n"
			end

			convert = FindLinuxConvert()
			if (convert != nil)
				old_outfile = @outputfile
				ext = File.extname(old_outfile)
				@outputfile = @outputfile.gsub(/#{ext}$/, "")
				@outputfile << ".png"
				cmd = "#{convert} #{old_outfile} #{@outputfile}"
				err = Kernel.system(cmd)
				if (!err)
					@outputfile = old_outfile
				else
					File.unlink(old_outfile)
				end
			end
		when /windows/i
			require 'win32/screenshot'
			@outputfile = "#{dir}/#{OUTPUT_FILE}#{time}-#{hostname}.bmp"
           begin
              img = Win32::Screenshot::Take.of(:desktop)
              img.write(@outputfile)
           rescue Exception => e
           end
	end
end

Instance Method Details

#GetOutputFile ⇒ Object

GetOutputFile – Method This is a getter for getting the newly created snapshot file.

Input: None.

Output: retutns a string with the full path and filename to the new file.



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# File 'lib/SodaScreenShot.rb', line 114

def GetOutputFile()
	return @outputfile
end