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