Demo/cwilib/vt100win.py

   1 # VT100 terminal emulator in a STDWIN window.
   2
   3 import stdwin
   4 from stdwinevents import *
   5 from vt100 import VT100
   6
   7 class VT100win(VT100):
   8
   9         def __init__(self):
  10                 VT100.__init__(self)
  11                 self.window = None
  12                 self.last_x = -1
  13                 self.last_y = -1
  14
  15         def __del__(self):
  16                 self.close()
  17
  18         def open(self, title):
  19                 stdwin.setfont('7x14')
  20                 self.charwidth = stdwin.textwidth('m')
  21                 self.lineheight = stdwin.lineheight()
  22                 self.docwidth = self.width * self.charwidth
  23                 self.docheight = self.height * self.lineheight
  24                 stdwin.setdefwinsize(self.docwidth + 2, self.docheight + 2)
  25                 stdwin.setdefscrollbars(0, 0)
  26                 self.window = stdwin.open(title)
  27                 self.window.setdocsize(self.docwidth + 2, self.docheight + 2)
  28
  29         def close(self):
  30                 if self.window:
  31                         self.window.close()
  32                 self.window = None
  33
  34         def show(self):
  35                 if not self.window: return
  36                 self.window.change(((-10, -10),
  37                           (self.docwidth+10, self.docheight+10)))
  38
  39         def draw(self, detail):
  40                 d = self.window.begindrawing()
  41                 fg = stdwin.getfgcolor()
  42                 red = stdwin.fetchcolor('red')
  43                 d.cliprect(detail)
  44                 d.erase(detail)
  45                 lh = self.lineheight
  46                 cw = self.charwidth
  47                 for y in range(self.height):
  48                         d.text((0, y*lh), self.lines[y].tostring())
  49                         if self.attrs[y] <> self.blankattr:
  50                                 for x in range(len(self.attrs[y])):
  51                                         if self.attrs[y][x] == 7:
  52                                                 p1 = x*cw, y*lh
  53                                                 p2 = (x+1)*cw, (y+1)*lh
  54                                                 d.invert((p1, p2))
  55                 x = self.x * cw
  56                 y = self.y * lh
  57                 d.setfgcolor(red)
  58                 d.invert((x, y), (x+cw, y+lh))
  59                 d.setfgcolor(fg)
  60                 d.close()
  61
  62         def move_to(self, x, y):
  63                 VT100.move_to(self, x, y)
  64                 if not self.window: return
  65                 if self.y != self.last_y:
  66                         self.window.change((0, self.last_y * self.lineheight),
  67                                   (self.width*self.charwidth,
  68                                   (self.last_y+1) * self.lineheight))
  69                 self.last_x = self.x
  70                 self.last_y = y
  71                 self.window.change((0, self.y * self.lineheight),
  72                           (self.width*self.charwidth,
  73                           (self.y+1) * self.lineheight))
  74
  75         def send(self, str):
  76                 VT100.send(self, str)
  77 ##              self.show()
  78