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# -*- coding: utf-8 -*-
# pythonconsole.py -- Console widget
#
# Copyright (C) 2006 - Steve Frécinaux
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Parts from "Interactive Python-GTK Console" (stolen from epiphany's console.py)
# Copyright (C), 1998 James Henstridge <james@daa.com.au>
# Copyright (C), 2005 Adam Hooper <adamh@densi.com>
# Bits from gedit Python Console Plugin
# Copyrignt (C), 2005 Raphaël Slinckx
import string
import sys
import re
import traceback
import gobject
import gtk
import pango
__all__ = ('PythonConsole', 'OutFile')
class PythonConsole(gtk.ScrolledWindow):
def __init__(self, namespace = {}):
gtk.ScrolledWindow.__init__(self)
self.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC);
self.set_shadow_type(gtk.SHADOW_IN)
self.view = gtk.TextView()
self.view.modify_font(pango.FontDescription('Monospace'))
self.view.set_editable(True)
self.view.set_wrap_mode(gtk.WRAP_WORD_CHAR)
self.add(self.view)
self.view.show()
buffer = self.view.get_buffer()
self.normal = buffer.create_tag("normal")
self.error = buffer.create_tag("error")
self.error.set_property("foreground", "red")
self.command = buffer.create_tag("command")
self.command.set_property("foreground", "blue")
self.__spaces_pattern = re.compile(r'^\s+')
self.namespace = namespace
# Init first line
buffer.create_mark("input-line", buffer.get_end_iter(), True)
buffer.insert(buffer.get_end_iter(), ">>> ")
buffer.create_mark("input", buffer.get_end_iter(), True)
# Init history
self.history = ['']
self.history_pos = 0
self.current_command = ''
self.namespace['__history__'] = self.history
# Set up hooks for standard output.
self.stdout = OutFile(self, sys.stdout.fileno(), self.normal)
self.stderr = OutFile(self, sys.stderr.fileno(), self.error)
# Signals
self.view.connect("key-press-event", self.__key_press_event_cb)
buffer.connect("mark-set", self.__mark_set_cb)
def __key_press_event_cb(self, view, event):
if event.keyval == gtk.keysyms.d and event.state == gtk.gdk.CONTROL_MASK:
self.destroy()
elif event.keyval == gtk.keysyms.Return and event.state == gtk.gdk.CONTROL_MASK:
# Get the command
buffer = view.get_buffer()
inp_mark = buffer.get_mark("input")
inp = buffer.get_iter_at_mark(inp_mark)
cur = buffer.get_end_iter()
line = buffer.get_text(inp, cur)
self.current_command = self.current_command + line + "\n"
self.history_add(line)
# Prepare the new line
cur = buffer.get_end_iter()
buffer.insert(cur, "\n... ")
cur = buffer.get_end_iter()
buffer.move_mark(inp_mark, cur)
# Keep indentation of precendent line
spaces = re.match(self.__spaces_pattern, line)
if spaces is not None:
buffer.insert(cur, line[spaces.start() : spaces.end()])
cur = buffer.get_end_iter()
buffer.place_cursor(cur)
gobject.idle_add(self.scroll_to_end)
return True
elif event.keyval == gtk.keysyms.Return:
# Get the marks
buffer = view.get_buffer()
lin_mark = buffer.get_mark("input-line")
inp_mark = buffer.get_mark("input")
# Get the command line
inp = buffer.get_iter_at_mark(inp_mark)
cur = buffer.get_end_iter()
line = buffer.get_text(inp, cur)
self.current_command = self.current_command + line + "\n"
self.history_add(line)
# Make the line blue
lin = buffer.get_iter_at_mark(lin_mark)
buffer.apply_tag(self.command, lin, cur)
buffer.insert(cur, "\n")
# Eval the command
self.__run(self.current_command)
self.current_command = ''
# Prepare the new line
cur = buffer.get_end_iter()
buffer.move_mark(lin_mark, cur)
buffer.insert(cur, ">>> ")
cur = buffer.get_end_iter()
buffer.move_mark(inp_mark, cur)
buffer.place_cursor(cur)
gobject.idle_add(self.scroll_to_end)
return True
elif event.keyval == gtk.keysyms.KP_Down or event.keyval == gtk.keysyms.Down:
# Next entry from history
view.emit_stop_by_name("key_press_event")
self.history_down()
gobject.idle_add(self.scroll_to_end)
return True
elif event.keyval == gtk.keysyms.KP_Up or event.keyval == gtk.keysyms.Up:
# Previous entry from history
view.emit_stop_by_name("key_press_event")
self.history_up()
gobject.idle_add(self.scroll_to_end)
return True
elif event.keyval == gtk.keysyms.KP_Left or event.keyval == gtk.keysyms.Left or \
event.keyval == gtk.keysyms.BackSpace:
buffer = view.get_buffer()
inp = buffer.get_iter_at_mark(buffer.get_mark("input"))
cur = buffer.get_iter_at_mark(buffer.get_insert())
return inp.compare(cur) == 0
elif event.keyval == gtk.keysyms.Home:
# Go to the begin of the command instead of the begin of the line
buffer = view.get_buffer()
inp = buffer.get_iter_at_mark(buffer.get_mark("input"))
if event.state == gtk.gdk.SHIFT_MASK:
buffer.move_mark_by_name("insert", inp)
else:
buffer.place_cursor(inp)
return True
def __mark_set_cb(self, buffer, iter, name):
input = buffer.get_iter_at_mark(buffer.get_mark("input"))
pos = buffer.get_iter_at_mark(buffer.get_insert())
self.view.set_editable(pos.compare(input) != -1)
def get_command_line(self):
buffer = self.view.get_buffer()
inp = buffer.get_iter_at_mark(buffer.get_mark("input"))
cur = buffer.get_end_iter()
return buffer.get_text(inp, cur)
def set_command_line(self, command):
buffer = self.view.get_buffer()
mark = buffer.get_mark("input")
inp = buffer.get_iter_at_mark(mark)
cur = buffer.get_end_iter()
buffer.delete(inp, cur)
buffer.insert(inp, command)
buffer.select_range(buffer.get_iter_at_mark(mark), buffer.get_end_iter())
self.view.grab_focus()
def history_add(self, line):
if line.strip() != '':
self.history_pos = len(self.history)
self.history[self.history_pos - 1] = line
self.history.append('')
def history_up(self):
if self.history_pos > 0:
self.history[self.history_pos] = self.get_command_line()
self.history_pos = self.history_pos - 1
self.set_command_line(self.history[self.history_pos])
def history_down(self):
if self.history_pos < len(self.history) - 1:
self.history[self.history_pos] = self.get_command_line()
self.history_pos = self.history_pos + 1
self.set_command_line(self.history[self.history_pos])
def scroll_to_end(self):
iter = self.view.get_buffer().get_end_iter()
self.view.scroll_to_iter(iter, 0.0)
return False
def write(self, text, tag = None):
buffer = self.view.get_buffer()
if tag is None:
buffer.insert(buffer.get_end_iter(), text)
else:
buffer.insert_with_tags(buffer.get_end_iter(), text, tag)
gobject.idle_add(self.scroll_to_end)
def eval(self, command, display_command = False):
buffer = self.view.get_buffer()
lin = buffer.get_mark("input-line")
buffer.delete(buffer.get_iter_at_mark(lin),
buffer.get_end_iter())
if isinstance(command, list) or isinstance(command, tuple):
for c in command:
if display_command:
self.write(">>> " + c + "\n", self.command)
self.__run(c)
else:
if display_command:
self.write(">>> " + c + "\n", self.command)
self.__run(command)
cur = buffer.get_end_iter()
buffer.move_mark_by_name("input-line", cur)
buffer.insert(cur, ">>> ")
cur = buffer.get_end_iter()
buffer.move_mark_by_name("input", cur)
self.view.scroll_to_iter(buffer.get_end_iter(), 0.0)
def __run(self, command):
sys.stdout, self.stdout = self.stdout, sys.stdout
sys.stderr, self.stderr = self.stderr, sys.stderr
try:
try:
r = eval(command, self.namespace, self.namespace)
if r is not None:
print `r`
except SyntaxError:
exec command in self.namespace
except:
if hasattr(sys, 'last_type') and sys.last_type == SystemExit:
self.destroy()
else:
traceback.print_exc()
sys.stdout, self.stdout = self.stdout, sys.stdout
sys.stderr, self.stderr = self.stderr, sys.stderr
def destroy(self):
pass
#gtk.ScrolledWindow.destroy(self)
class OutFile:
"""A fake output file object. It sends output to a TK test widget,
and if asked for a file number, returns one set on instance creation"""
def __init__(self, console, fn, tag):
self.fn = fn
self.console = console
self.tag = tag
def close(self): pass
def flush(self): pass
def fileno(self): return self.fn
def isatty(self): return 0
def read(self, a): return ''
def readline(self): return ''
def readlines(self): return []
def write(self, s): self.console.write(s, self.tag)
def writelines(self, l): self.console.write(l, self.tag)
def seek(self, a): raise IOError, (29, 'Illegal seek')
def tell(self): raise IOError, (29, 'Illegal seek')
truncate = tell
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