# simple slide by joe
# 26/10/2014
import os
import appuifw as A
import graphics as G

layar=G.sysinfo.display_pixels()
img=G.Image.new(layar)
run=1
def q():
 global run
 run=0

def skala(w,h,bw,bh,fit=1):
 nw=bh*w/h
 nh=bw*h/w
 if fit ^(nw>=bw):
  return nw or 1,bh
 return bw,nh or 1

def draw(x):
 c.blit(img)

c=A.Canvas(redraw_callback=draw)
A.app.screen='full'
A.app.body=c
A.app.menu=[]
A.app.exit_key_handler=q


d=u'E:\\Images\\'
lst=[os.path.join(d,i) for i in os.listdir(d)]

list_gbr=filter(lambda f: os.path.isfile(f) and f.endswith('.jpg'), lst)

def slide():
 for i in xrange(len(list_gbr)):
  if not run:return
  if i>len(list_gbr):
   i=0
  img.clear(0)
  try:
    gbr=G.Image.open(list_gbr[i])
    sz=skala(gbr.size[0],gbr.size[1],176,208)
    img.blit(gbr.resize(sz),target=(layar[0]/2-sz[0]/2,layar[1]/2-sz[1]/2))
    img.text((5,20), u'Gambar: %d/%d' %(i+1,len(list_gbr)), 0xffffff, 'legend')
  except:
    img.text((5,20), u'Tidak bisa ditampilkan', 0xffffff, 'legend')
  c.blit(img)
  A.e32.ao_sleep(2)

slide()