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|
#----------------------------------------------------------------------
# Name: wxPython.lib.pyshell
# Purpose: A Python Interactive Interpreter running in a wxStyledTextCtrl
# window.
#
# Author: Robin Dunn
#
# Created: 7-July-2000
# RCS-ID: $Id$
# Copyright: (c) 2000 by Total Control Software
# Licence: wxWindows license
#----------------------------------------------------------------------
# 12/10/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o 2.5 compatability update.
# o Added deprecation warning.
#
"""
PyShellWindow is a class that provides an Interactive Interpreter running
inside a wxStyledTextCtrl, similar to the Python shell windows found in
IDLE and PythonWin.
There is still much to be done to improve this class, such as line
buffering/recall, autoindent, calltips, autocomplete, fixing the colourizer,
etc... But it's a good start.
8-10-2001 THIS MODULE IS NOW DEPRECATED. Please see the most excellent
PyCrust package instead.
"""
import keyword
import sys
import warnings
from code import InteractiveInterpreter
import wx
import wx.stc as stc
warningmsg = r"""\
########################################\
# THIS MODULE IS NOW DEPRECATED |
# |
# Please see the most excellent PyCrust |
# package instead. |
########################################/
"""
warnings.warn(warningmsg, DeprecationWarning, stacklevel=2)
#----------------------------------------------------------------------
# default styles, etc. to use for the STC
if wx.Platform == '__WXMSW__':
_defaultSize = 8
else:
_defaultSize = 10
_default_properties = {
'selMargin' : 0,
'marginWidth' : 1,
'ps1' : '>>> ',
'stdout' : 'fore:#0000FF',
'stderr' : 'fore:#007f00',
'trace' : 'fore:#FF0000',
'default' : 'size:%d' % _defaultSize,
'bracegood' : 'fore:#FFFFFF,back:#0000FF,bold',
'bracebad' : 'fore:#000000,back:#FF0000,bold',
# properties for the various Python lexer styles
'comment' : 'fore:#007F00',
'number' : 'fore:#007F7F',
'string' : 'fore:#7F007F,italic',
'char' : 'fore:#7F007F,italic',
'keyword' : 'fore:#00007F,bold',
'triple' : 'fore:#7F0000',
'tripledouble': 'fore:#7F0000',
'class' : 'fore:#0000FF,bold,underline',
'def' : 'fore:#007F7F,bold',
'operator' : 'bold',
}
# new style numbers
_stdout_style = 15
_stderr_style = 16
_trace_style = 17
#----------------------------------------------------------------------
class PyShellWindow(stc.StyledTextCtrl, InteractiveInterpreter):
def __init__(self, parent, ID, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0,
locals=None, properties=None, banner=None):
stc.StyledTextCtrl.__init__(self, parent, ID, pos, size, style)
InteractiveInterpreter.__init__(self, locals)
self.lastPromptPos = 0
# the line cache is used to cycle through previous commands
self.lines = []
self.lastUsedLine = self.curLine = 0
# set defaults and then deal with any user defined properties
self.props = {}
self.props.update(_default_properties)
if properties:
self.props.update(properties)
self.UpdateProperties()
# copyright/banner message
if banner is None:
self.write("Python %s on %s\n" % #%s\n(%s)\n" %
(sys.version, sys.platform,
#sys.copyright, self.__class__.__name__
))
else:
self.write("%s\n" % banner)
# write the initial prompt
self.Prompt()
# Event handlers
self.Bind(wx.EVT_KEY_DOWN, self.OnKey)
self.Bind(stc.EVT_STC_UPDATEUI, self.OnUpdateUI, id=ID)
#self.Bind(stc.EVT_STC_STYLENEEDED, self.OnStyle, id=ID)
def GetLocals(self): return self.locals
def SetLocals(self, locals): self.locals = locals
def GetProperties(self): return self.props
def SetProperties(self, properties):
self.props.update(properties)
self.UpdateProperties()
def UpdateProperties(self):
"""
Reset the editor and other settings based on the contents of the
current properties dictionary.
"""
p = self.props
#self.SetEdgeMode(stc.STC_EDGE_LINE)
#self.SetEdgeColumn(80)
# set the selection margin and window margin
self.SetMarginWidth(1, p['selMargin'])
self.SetMargins(p['marginWidth'], p['marginWidth'])
# styles
self.StyleSetSpec(stc.STC_STYLE_DEFAULT, p['default'])
self.StyleClearAll()
self.StyleSetSpec(_stdout_style, p['stdout'])
self.StyleSetSpec(_stderr_style, p['stderr'])
self.StyleSetSpec(_trace_style, p['trace'])
self.StyleSetSpec(stc.STC_STYLE_BRACELIGHT, p['bracegood'])
self.StyleSetSpec(stc.STC_STYLE_BRACEBAD, p['bracebad'])
self.StyleSetSpec(stc.STC_P_COMMENTLINE, p['comment'])
self.StyleSetSpec(stc.STC_P_NUMBER, p['number'])
self.StyleSetSpec(stc.STC_P_STRING, p['string'])
self.StyleSetSpec(stc.STC_P_CHARACTER, p['char'])
self.StyleSetSpec(stc.STC_P_WORD, p['keyword'])
self.StyleSetSpec(stc.STC_P_TRIPLE, p['triple'])
self.StyleSetSpec(stc.STC_P_TRIPLEDOUBLE, p['tripledouble'])
self.StyleSetSpec(stc.STC_P_CLASSNAME, p['class'])
self.StyleSetSpec(stc.STC_P_DEFNAME, p['def'])
self.StyleSetSpec(stc.STC_P_OPERATOR, p['operator'])
self.StyleSetSpec(stc.STC_P_COMMENTBLOCK, p['comment'])
# used for writing to stdout, etc.
def _write(self, text, style=_stdout_style):
self.lastPromptPos = 0
pos = self.GetCurrentPos()
self.AddText(text)
self.StartStyling(pos, 0xFF)
self.SetStyling(len(text), style)
self.EnsureCaretVisible()
wx.Yield()
write = _write
def writeTrace(self, text):
self._write(text, _trace_style)
def Prompt(self):
# is the current line non-empty?
text, pos = self.GetCurLine()
if pos != 0:
self.AddText('\n')
self.AddText(self.props['ps1'])
self.lastPromptPos = self.GetCurrentPos()
self.EnsureCaretVisible()
self.ScrollToColumn(0)
def PushLine(self, text):
# TODO: Add the text to the line cache, manage the cache so
# it doesn't get too big.
pass
def OnKey(self, evt):
key = evt.GetKeyCode()
if key == wx.WXK_RETURN:
pos = self.GetCurrentPos()
lastPos = self.GetTextLength()
# if not on the last line, duplicate the current line
if self.GetLineCount()-1 != self.GetCurrentLine():
text, col = self.GetCurLine()
prompt = self.props['ps1']
lp = len(prompt)
if text[:lp] == prompt:
text = text[lp:]
self.SetSelection(self.lastPromptPos, lastPos)
self.ReplaceSelection(text[:-1])
else: # try to execute the text from the prompt to the end
if lastPos == self.lastPromptPos:
self.AddText('\n')
self.Prompt()
return
text = self.GetTextRange(self.lastPromptPos, lastPos)
self.AddText('\n')
more = self.runsource(text)
if not more:
self.PushLine(text)
self.Prompt()
# TODO: Add handlers for Alt-P and Alt-N to cycle through entries
# in the line cache
else:
evt.Skip()
def OnStyle(self, evt):
# Only style from the prompt pos to the end
lastPos = self.GetTextLength()
if self.lastPromptPos and self.lastPromptPos != lastPos:
self.SetLexer(stc.STC_LEX_PYTHON)
self.SetKeywords(0, ' '.join(keyword.kwlist))
self.Colourise(self.lastPromptPos, lastPos)
self.SetLexer(0)
def OnUpdateUI(self, evt):
# check for matching braces
braceAtCaret = -1
braceOpposite = -1
charBefore = None
caretPos = self.GetCurrentPos()
if caretPos > 0:
charBefore = self.GetCharAt(caretPos - 1)
styleBefore = self.GetStyleAt(caretPos - 1)
# check before
if charBefore and chr(charBefore) in "[]{}()" and styleBefore == stc.STC_P_OPERATOR:
braceAtCaret = caretPos - 1
# check after
if braceAtCaret < 0:
charAfter = self.GetCharAt(caretPos)
styleAfter = self.GetStyleAt(caretPos)
if charAfter and chr(charAfter) in "[]{}()" and styleAfter == stc.STC_P_OPERATOR:
braceAtCaret = caretPos
if braceAtCaret >= 0:
braceOpposite = self.BraceMatch(braceAtCaret)
if braceAtCaret != -1 and braceOpposite == -1:
self.BraceBadlight(braceAtCaret)
else:
self.BraceHighlight(braceAtCaret, braceOpposite)
#----------------------------------------------
# overloaded methods from InteractiveInterpreter
def runsource(self, source):
stdout, stderr = sys.stdout, sys.stderr
sys.stdout = FauxFile(self, _stdout_style)
sys.stderr = FauxFile(self, _stderr_style)
more = InteractiveInterpreter.runsource(self, source)
sys.stdout, sys.stderr = stdout, stderr
return more
def showsyntaxerror(self, filename=None):
self.write = self.writeTrace
InteractiveInterpreter.showsyntaxerror(self, filename)
self.write = self._write
def showtraceback(self):
self.write = self.writeTrace
InteractiveInterpreter.showtraceback(self)
self.write = self._write
#----------------------------------------------------------------------
class FauxFile:
def __init__(self, psw, style):
self.psw = psw
self.style = style
def write(self, text):
self.psw.write(text, self.style)
def writelines(self, lst):
map(self.write, lst)
def flush(self):
pass
#----------------------------------------------------------------------
# test code
if __name__ == '__main__':
app = wx.PyWidgetTester(size = (640, 480))
app.SetWidget(PyShellWindow, -1)
app.MainLoop()
#----------------------------------------------------------------------
|
