research/transmission_spectroscopy/simulator/pgu-0.18/examples/gui17.py

   1 """an example a python console"""
   2
   3 import pygame
   4 from pygame.locals import *
   5
   6 # the following line is not needed if pgu is installed
   7 import sys; sys.path.insert(0, "..")
   8
   9 import traceback
  10
  11 from pgu import gui
  12 from pgu import html
  13
  14 class StringStream:
  15     def __init__(self):
  16         self._data = ''
  17     def write(self,data):
  18         self._data = self._data+data
  19         _lines = self._data.split("\n")
  20         for line in _lines[:-1]:
  21             lines.tr()
  22             lines.td(gui.Label(str(line)),align=-1)
  23         self._data = _lines[-1:][0]
  24
  25 _locals = {}
  26 def lkey(_event):
  27     e = _event
  28     if e.key == K_RETURN:
  29         _stdout = sys.stdout
  30         s = sys.stdout = StringStream()
  31
  32         val = line.value
  33         line.value = ''
  34         line.focus()
  35         print('>>> '+val)
  36         try:
  37             code = compile(val,'<string>','single')
  38             eval(code,globals(),_locals)
  39         except:
  40             e_type,e_value,e_traceback = sys.exc_info()
  41             print('Traceback (most recent call last):')
  42             traceback.print_tb(e_traceback,None,s)
  43             print(e_type,e_value)
  44
  45         sys.stdout = _stdout
  46
  47 app = gui.Desktop()
  48 t = gui.Table(width=500,height=400)
  49
  50 t.tr()
  51 lines = gui.Table()
  52 box = gui.ScrollArea(lines,500,380)
  53 t.td(box)
  54
  55 t.tr()
  56 line = gui.Input(size=49)
  57 line.connect(gui.KEYDOWN,lkey)
  58 t.td(line)
  59
  60 t.tr()
  61 class Hack(gui.Spacer):
  62     def resize(self,width=None,height=None):
  63         box.set_vertical_scroll(65535)
  64         return 1,1
  65 t.td(Hack(1,1))
  66
  67 app.connect(gui.QUIT,app.quit,None)
  68 app.run(t)