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"""
You don't really want to use this module. Try insults.py instead.
"""
from __future__ import print_function
from twisted.internet import protocol
class InsultsClient(protocol.Protocol):
escapeTimeout = 0.2
def __init__(self):
self.width = self.height = None
self.xpos = self.ypos = 0
self.commandQueue = []
self.inEscape = ''
def setSize(self, width, height):
call = 0
if self.width:
call = 1
self.width = width
self.height = height
if call:
self.windowSizeChanged()
def dataReceived(self, data):
from twisted.internet import reactor
for ch in data:
if ch == '\x1b':
if self.inEscape:
self.keyReceived(ch)
self.inEscape = ''
else:
self.inEscape = ch
self.escapeCall = reactor.callLater(self.escapeTimeout,
self.endEscape)
elif ch in 'ABCD' and self.inEscape:
self.inEscape = ''
self.escapeCall.cancel()
if ch == 'A':
self.keyReceived('<Up>')
elif ch == 'B':
self.keyReceived('<Down>')
elif ch == 'C':
self.keyReceived('<Right>')
elif ch == 'D':
self.keyReceived('<Left>')
elif self.inEscape:
self.inEscape += ch
else:
self.keyReceived(ch)
def endEscape(self):
ch = self.inEscape
self.inEscape = ''
self.keyReceived(ch)
def initScreen(self):
self.transport.write('\x1b=\x1b[?1h')
def gotoXY(self, x, y):
"""Go to a position on the screen.
"""
self.xpos = x
self.ypos = y
self.commandQueue.append(('gotoxy', x, y))
def writeCh(self, ch):
"""Write a character to the screen. If we're at the end of the row,
ignore the write.
"""
if self.xpos < self.width - 1:
self.commandQueue.append(('write', ch))
self.xpos += 1
def writeStr(self, s):
"""Write a string to the screen. This does not wrap a the edge of the
screen, and stops at \\r and \\n.
"""
s = s[:self.width-self.xpos]
if '\n' in s:
s=s[:s.find('\n')]
if '\r' in s:
s=s[:s.find('\r')]
self.commandQueue.append(('write', s))
self.xpos += len(s)
def eraseToLine(self):
"""Erase from the current position to the end of the line.
"""
self.commandQueue.append(('eraseeol',))
def eraseToScreen(self):
"""Erase from the current position to the end of the screen.
"""
self.commandQueue.append(('eraseeos',))
def clearScreen(self):
"""Clear the screen, and return the cursor to 0, 0.
"""
self.commandQueue = [('cls',)]
self.xpos = self.ypos = 0
def setAttributes(self, *attrs):
"""Set the attributes for drawing on the screen.
"""
self.commandQueue.append(('attributes', attrs))
def refresh(self):
"""Redraw the screen.
"""
redraw = ''
for command in self.commandQueue:
if command[0] == 'gotoxy':
redraw += '\x1b[%i;%iH' % (command[2]+1, command[1]+1)
elif command[0] == 'write':
redraw += command[1]
elif command[0] == 'eraseeol':
redraw += '\x1b[0K'
elif command[0] == 'eraseeos':
redraw += '\x1b[OJ'
elif command[0] == 'cls':
redraw += '\x1b[H\x1b[J'
elif command[0] == 'attributes':
redraw += '\x1b[%sm' % ';'.join(map(str, command[1]))
else:
print(command)
self.commandQueue = []
self.transport.write(redraw)
def windowSizeChanged(self):
"""Called when the size of the window changes.
Might want to redraw the screen here, or something.
"""
def keyReceived(self, key):
"""Called when the user hits a key.
"""