code / btui

   1 #!/usr/bin/env python3
   2 #
   3 # This file contains a simple test program for demonstrating some basic Python
   4 # BTUI usage.
   5 #
   6 import btui
   7 
   8 with btui.open() as bt:
   9     key = None
  10     x, y = 1, 1
  11     while key != 'q' and key != 'Ctrl-c':
  12         if key == '?':
  13             with bt.disabled():
  14                 input("Press enter to continue.")
  15         elif key == 'Ctrl-z':
  16             bt.suspend()
  17 
  18         bt.clear()
  19 
  20         with bt.fg(.8, .95, .2):
  21             bt.outline_box(x, y, 30, 1)
  22             bt.move(x, y)
  23             bt.write(f"Pressed: {key}")
  24 
  25         title = "Python BTUI Demo"
  26         w = len(title)
  27         center = (bt.width - w) // 2
  28         with bt.attributes("fg_blue", "bg_normal"):
  29             bt.draw_shadow(center - 2, 0, w + 4, 3)
  30         with bt.attributes("bg_blue", "fg_black"):
  31             bt.fill_box(center - 2, 0, w + 4, 3)
  32             bt.move(center, 1)
  33             bt.write(title)
  34 
  35         with bt.attributes("bold"):
  36             bt.move(0, bt.height-1)
  37             bt.write("Press 'q' to quit")
  38 
  39         with bt.attributes("faint"):
  40             s = f"Size: ({bt.width}x{bt.height})"
  41             bt.move(bt.width-len(s), bt.height-1)
  42             bt.write(s)
  43 
  44         key, mx, my = bt.getkey()
  45         if mx:
  46             x, y = mx, my
  47 
  48     if key == 'Ctrl-c':
  49         raise KeyboardInterrupt