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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
#
"""Module to emulate a VT100 terminal in Tkinter.
Maintainer: Paul Swartz
"""
import Tkinter, tkFont
import ansi
import string
ttyFont = None#tkFont.Font(family = 'Courier', size = 10)
fontWidth, fontHeight = None,None#max(map(ttyFont.measure, string.letters+string.digits)), int(ttyFont.metrics()['linespace'])
colorKeys = (
'b', 'r', 'g', 'y', 'l', 'm', 'c', 'w',
'B', 'R', 'G', 'Y', 'L', 'M', 'C', 'W'
)
colorMap = {
'b': '#000000', 'r': '#c40000', 'g': '#00c400', 'y': '#c4c400',
'l': '#000080', 'm': '#c400c4', 'c': '#00c4c4', 'w': '#c4c4c4',
'B': '#626262', 'R': '#ff0000', 'G': '#00ff00', 'Y': '#ffff00',
'L': '#0000ff', 'M': '#ff00ff', 'C': '#00ffff', 'W': '#ffffff',
}
class VT100Frame(Tkinter.Frame):
def __init__(self, *args, **kw):
global ttyFont, fontHeight, fontWidth
ttyFont = tkFont.Font(family = 'Courier', size = 10)
fontWidth, fontHeight = max(map(ttyFont.measure, string.letters+string.digits)), int(ttyFont.metrics()['linespace'])
self.width = kw.get('width', 80)
self.height = kw.get('height', 25)
self.callback = kw['callback']
del kw['callback']
kw['width'] = w = fontWidth * self.width
kw['height'] = h = fontHeight * self.height
Tkinter.Frame.__init__(self, *args, **kw)
self.canvas = Tkinter.Canvas(bg='#000000', width=w, height=h)
self.canvas.pack(side=Tkinter.TOP, fill=Tkinter.BOTH, expand=1)
self.canvas.bind('<Key>', self.keyPressed)
self.canvas.bind('<1>', lambda x: 'break')
self.canvas.bind('<Up>', self.upPressed)
self.canvas.bind('<Down>', self.downPressed)
self.canvas.bind('<Left>', self.leftPressed)
self.canvas.bind('<Right>', self.rightPressed)
self.canvas.focus()
self.ansiParser = ansi.AnsiParser(ansi.ColorText.WHITE, ansi.ColorText.BLACK)
self.ansiParser.writeString = self.writeString
self.ansiParser.parseCursor = self.parseCursor
self.ansiParser.parseErase = self.parseErase
#for (a, b) in colorMap.items():
# self.canvas.tag_config(a, foreground=b)
# self.canvas.tag_config('b'+a, background=b)
#self.canvas.tag_config('underline', underline=1)
self.x = 0
self.y = 0
self.cursor = self.canvas.create_rectangle(0,0,fontWidth-1,fontHeight-1,fill='green',outline='green')
def _delete(self, sx, sy, ex, ey):
csx = sx*fontWidth + 1
csy = sy*fontHeight + 1
cex = ex*fontWidth + 3
cey = ey*fontHeight + 3
items = self.canvas.find_overlapping(csx,csy, cex,cey)
for item in items:
self.canvas.delete(item)
def _write(self, ch, fg, bg):
if self.x == self.width:
self.x = 0
self.y+=1
if self.y == self.height:
[self.canvas.move(x,0,-fontHeight) for x in self.canvas.find_all()]
self.y-=1
canvasX = self.x*fontWidth + 1
canvasY = self.y*fontHeight + 1
items = self.canvas.find_overlapping(canvasX, canvasY, canvasX+2, canvasY+2)
if items:
[self.canvas.delete(item) for item in items]
if bg:
self.canvas.create_rectangle(canvasX, canvasY, canvasX+fontWidth-1, canvasY+fontHeight-1, fill=bg, outline=bg)
self.canvas.create_text(canvasX, canvasY, anchor=Tkinter.NW, font=ttyFont, text=ch, fill=fg)
self.x+=1
def write(self, data):
#print self.x,self.y,repr(data)
#if len(data)>5: raw_input()
self.ansiParser.parseString(data)
self.canvas.delete(self.cursor)
canvasX = self.x*fontWidth + 1
canvasY = self.y*fontHeight + 1
self.cursor = self.canvas.create_rectangle(canvasX,canvasY,canvasX+fontWidth-1,canvasY+fontHeight-1, fill='green', outline='green')
self.canvas.lower(self.cursor)
def writeString(self, i):
if not i.display:
return
fg = colorMap[i.fg]
bg = i.bg != 'b' and colorMap[i.bg]
for ch in i.text:
b = ord(ch)
if b == 7: # bell
self.bell()
elif b == 8: # BS
if self.x:
self.x-=1
elif b == 9: # TAB
[self._write(' ',fg,bg) for i in range(8)]
elif b == 10:
if self.y == self.height-1:
self._delete(0,0,self.width,0)
[self.canvas.move(x,0,-fontHeight) for x in self.canvas.find_all()]
else:
self.y+=1
elif b == 13:
self.x = 0
elif 32 <= b < 127:
self._write(ch, fg, bg)
def parseErase(self, erase):
if ';' in erase:
end = erase[-1]
parts = erase[:-1].split(';')
[self.parseErase(x+end) for x in parts]
return
start = 0
x,y = self.x, self.y
if len(erase) > 1:
start = int(erase[:-1])
if erase[-1] == 'J':
if start == 0:
self._delete(x,y,self.width,self.height)
else:
self._delete(0,0,self.width,self.height)
self.x = 0
self.y = 0
elif erase[-1] == 'K':
if start == 0:
self._delete(x,y,self.width,y)
elif start == 1:
self._delete(0,y,x,y)
self.x = 0
else:
self._delete(0,y,self.width,y)
self.x = 0
elif erase[-1] == 'P':
self._delete(x,y,x+start,y)
def parseCursor(self, cursor):
#if ';' in cursor and cursor[-1]!='H':
# end = cursor[-1]
# parts = cursor[:-1].split(';')
# [self.parseCursor(x+end) for x in parts]
# return
start = 1
if len(cursor) > 1 and cursor[-1]!='H':
start = int(cursor[:-1])
if cursor[-1] == 'C':
self.x+=start
elif cursor[-1] == 'D':
self.x-=start
elif cursor[-1]=='d':
self.y=start-1
elif cursor[-1]=='G':
self.x=start-1
elif cursor[-1]=='H':
if len(cursor)>1:
y,x = map(int, cursor[:-1].split(';'))
y-=1
x-=1
else:
x,y=0,0
self.x = x
self.y = y
def keyPressed(self, event):
if self.callback and event.char:
self.callback(event.char)
return 'break'
def upPressed(self, event):
self.callback('\x1bOA')
def downPressed(self, event):
self.callback('\x1bOB')
def rightPressed(self, event):
self.callback('\x1bOC')
def leftPressed(self, event):
self.callback('\x1bOD')
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