Grid Menu

# grid menu example
# Joe, 13/12/2014

import appuifw as A
import graphics as G

class Grid:
 def __init__(self, num=6, pos=(5,5), pad=2, bgcolor=0xbde72f, color=0xfcfcfc, focus_color=0x00af00, txtcolor=0, font='legend', fill=False):
  self.w,self.h=G.sysinfo.display_pixels()
  self.img=G.Image.new((self.w,self.h))
  self.run,self.clicked,self.filled=False,False,fill
  self.cols=self.rows=num
  self.px,self.py=pos
  self.pad=pad
  self.width=(self.w - self.px - (self.pad*self.cols))/self.cols
  self.color=color
  self.bgcolor=bgcolor
  self.focus_color=focus_color
  self.txtcolor,self.font=txtcolor,font
  self.curx,self.cury=0,0
  self.hint=True
  A.app.screen='full'
  self.c=A.Canvas(redraw_callback=self._redraw,event_callback=self._event)
  A.app.body=self.c
  A.app.exit_key_handler=self.exit

 def exit(self):
  A.app.set_exit()

 def _redraw(self,rect):
  if self.img:
   self.c.blit(self.img)

 def _event(self,sc):
  k=sc['scancode']
  if sc['type'] is not A.EEventKey:return
  self.hint=False
  if self.clicked:
   self.clicked=False
  if k==0xf: # kanan
   self.curx+=1
   if self.curx>self.rows-1:
    self.curx=0
    self.cury+=1
    if self.cury>self.cols-1:
     self.cury=0
     self.curx=0
  elif k==0xe: # kiri
   self.curx-=1
   if self.curx<0:
    self.curx=self.rows-1
    self.cury-=1
    if self.cury<0:
     self.cury=self.cols-1
     self.curx=self.rows-1
  elif k==0x10: # atas
   self.cury-=1
   if self.cury<0:
    self.cury=self.cols-1
  elif k==0x11: # bawah
   self.cury+=1
   if self.cury>self.cols-1:
    self.cury=0
  elif k in (0xa7,0x35): # OK / 5
   self.clicked=True

 def _tsize(self,text):
  if not isinstance(text,unicode):
   text=unicode(text)
  m=self.img.measure_text(text,font=self.font)[0]
  w,h=(m[2]-m[0],m[3]-m[1])
  return (w,h)

 def _draw_note(self,msg):
  x,y=self.w/2,self.h/2
  (tw,th)=self._tsize(msg)
  self.img.rectangle((x-(tw/2)-10,y-th,x+(tw/2)+10,y+(th/2)),fill=self.bgcolor)
  self.img.text((x-(tw/2),y),u'%s' %msg,self.txtcolor,self.font)

 def draw(self):
  self.run=True
  while self.run:
   self.img.clear(self.bgcolor)
   for i in range(self.cols):
    for j in range(self.rows):
     dx = self.px+(j*self.width)+(j*self.pad)
     dy = self.py+(i*self.width)+(i*self.pad)
     self.img.rectangle((dx,dy,dx+self.width,dy+self.width),fill=self.color)
   dx = self.px+(self.curx*self.width)+(self.curx*self.pad)
   dy = self.py+(self.cury*self.width)+(self.cury*self.pad)
   self.img.rectangle((dx,dy,dx+self.width,dy+self.width),self.focus_color,fill=(None,self.focus_color)[self.filled],width=(self.pad,0)[self.filled])
   if self.clicked:
    self._draw_note('Dipilih: x=%d, y=%d' %(self.curx,self.cury))
   if self.hint:
    self._draw_note('Grid Menu Example')
   self._redraw(0)
   A.e32.ao_sleep(1e-04)


'''
Argumen keyword:
 num = jumlah grid (int)
 pos = posisi (x,y) (tuple x dan y)
 pad = jarak antar kotak (int)
 bgcolor = warna dasar (kode warna)
 color = warna kotak (kode warna)
 focus_color = warna kursor (kode warna)
 txtcolor = warna teks (kode warna)
 font = font teks (kode warna)
 fill = kursor diisi warna atau hanya border nya saja (True / False)
'''

grid=Grid()
#grid=Grid(fill=True)
grid.draw()