Lib/stdwin/gwin.py

   1 # Module 'gwin'
   2 # Generic stdwin windows
   3
   4 # This is used as a base class from which to derive other window types.
   5 # XXX DON'T USE THIS CODE ANY MORE!  It is ages old!
   6
   7 import stdwin, stdwinq
   8 from stdwinevents import *
   9 from mainloop import mainloop, register, unregister, windows
  10
  11 # Open a window
  12
  13 def open(title):                        # Open a generic window
  14         w = stdwin.open(title)
  15         stdwin.setdefwinsize(0, 0)
  16         # Set default event handlers
  17         w.draw = nop
  18         w.char = nop
  19         w.mdown = nop
  20         w.mmove = nop
  21         w.mup = nop
  22         w.m2down = m2down
  23         w.m2up = m2up
  24         w.size = nop
  25         w.move = nop
  26         w.activate = w.deactivate = nop
  27         w.timer = nop
  28         # default command handlers
  29         w.close = close
  30         w.tab = tab
  31         w.enter = enter
  32         w.backspace = backspace
  33         w.arrow = arrow
  34         w.kleft = w.kup = w.kright = w.kdown = nop
  35         w.dispatch = treatevent
  36         register(w)
  37         return w
  38
  39
  40 def treatevent(e):                      # Handle a stdwin event
  41         type, w, detail = e
  42         if type == WE_DRAW:
  43                 w.draw(w, detail)
  44         elif type == WE_MENU:
  45                 m, item = detail
  46                 m.action[item](w, m, item)
  47         elif type == WE_COMMAND:
  48                 treatcommand(w, detail)
  49         elif type == WE_CHAR:
  50                 w.char(w, detail)
  51         elif type == WE_MOUSE_DOWN:
  52                 if detail[1] > 1: w.m2down(w, detail)
  53                 else: w.mdown(w, detail)
  54         elif type == WE_MOUSE_MOVE:
  55                 w.mmove(w, detail)
  56         elif type == WE_MOUSE_UP:
  57                 if detail[1] > 1: w.m2up(w, detail)
  58                 else: w.mup(w, detail)
  59         elif type == WE_SIZE:
  60                 w.size(w, w.getwinsize())
  61         elif type == WE_ACTIVATE:
  62                 w.activate(w)
  63         elif type == WE_DEACTIVATE:
  64                 w.deactivate(w)
  65         elif type == WE_MOVE:
  66                 w.move(w)
  67         elif type == WE_TIMER:
  68                 w.timer(w)
  69         elif type == WE_CLOSE:
  70                 w.close(w)
  71
  72 def treatcommand(w, type):              # Handle a we_command event
  73         if type == WC_CLOSE:
  74                 w.close(w)
  75         elif type == WC_RETURN:
  76                 w.enter(w)
  77         elif type == WC_TAB:
  78                 w.tab(w)
  79         elif type == WC_BACKSPACE:
  80                 w.backspace(w)
  81         elif type in (WC_LEFT, WC_UP, WC_RIGHT, WC_DOWN):
  82                 w.arrow(w, type)
  83
  84
  85 # Methods
  86
  87 def close(w):                           # Close method
  88         unregister(w)
  89         del w.close     # Delete our close function
  90         w.close()       # Call the close method
  91
  92 def arrow(w, detail):                   # Arrow key method
  93         if detail == WC_LEFT:
  94                 w.kleft(w)
  95         elif detail == WC_UP:
  96                 w.kup(w)
  97         elif detail == WC_RIGHT:
  98                 w.kright(w)
  99         elif detail == WC_DOWN:
 100                 w.kdown(w)
 101
 102
 103 # Trivial methods
 104
 105 def tab(w): w.char(w, '\t')
 106 def enter(w): w.char(w, '\n')           # 'return' is a Python reserved word
 107 def backspace(w): w.char(w, '\b')
 108 def m2down(w, detail): w.mdown(w, detail)
 109 def m2up(w, detail): w.mup(w, detail)
 110 def nop(*args): pass