#infos for disk not only in MB

import statvfs
import os
import karamba

textfont='Sans'
textsize=12
lineheight = 13
text_x = 50
text_x2 = 100
text_y = 190
text_list = []

def human_readable(value):
	if value >= (1024**4):
		return "%.2f To" % (value/(1024.0**4))
	if value >= (1024**3):
		return "%.2f Go" % (value/(1024.0**3))
	if value >= (1024**2):
		return "%.2f Mo" % (value/(1024.0**2))
	if value >= 1024:
		return "%.2f Ko" % (value/1024.0)
	else : return "%i o" % value
	
listdev = ["/", "/mnt/debian", "/mnt/win_c", "/mnt/win_d", "/mnt/win_e"]
listname = ["Fedora:", "Debian:", "Win_C:", "Win_D:", "Win_E:"]

nbdev = len(listdev)

#this is called when you widget is initialized
def initWidget(widget):
	global textfont, textsize, textcolor
	global listdev, listname
	global nbdev

	ypos = text_y
	for dev in range(nbdev):
		textnames = karamba.createText(widget, text_x, ypos, 50, lineheight, '   ')
		karamba.changeTextColor(widget, textnames, 255, 255, 255)
		karamba.changeTextSize(widget, textnames, textsize )
		karamba.changeTextFont(widget, textnames, textfont )
		karamba.changeText(widget, textnames,  str(listname[dev]))
		textinfos = karamba.createText(widget, text_x2, ypos, 150, lineheight, '   ')
		karamba.changeTextColor(widget, textinfos, 255, 255, 255)
		karamba.changeTextSize(widget, textinfos, textsize )
		karamba.changeTextFont(widget, textinfos, textfont )
		text_list.append(textinfos)
		ypos = ypos + lineheight


#		print listname[dev], human_readable(used), "/", human_readable(total), " ("+str(percent)+"%)"
	pass

#this is called everytime your widget is updated
#the update inverval is specified in the .theme file
def widgetUpdated(widget):
	global text_list
	
	for dev in range(nbdev):
		infos = os.statvfs(listdev[dev])
		total = infos[statvfs.F_FRSIZE] * infos[statvfs.F_BLOCKS]
		used = total - infos[statvfs.F_FRSIZE] * infos[statvfs.F_BFREE]
		percent = 100 * used / total
		karamba.changeText(widget, text_list[dev],  str(human_readable(used))+" / "+str(human_readable(total))+" ("+str(percent)+"%)")
	pass