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#
# $Id: console.py,v 1.13 2004/12/13 08:54:35 ksterker Exp $
#
# (C) Copyright 2001 Kai Sterker <kaisterker@linuxgames.com>
# Part of the Adonthell Project http://adonthell.linuxgames.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY.
#
# See the COPYING file for more details
#
import sys
import adonthell
# -- A simple python console with command history
class console (adonthell.win_container):
# -- Constructor
def __init__(self, ns):
adonthell.win_container.__init__(self)
self.namespace = ns
self.history = []
self.hist_idx = 0
# read the old history
self.read_history ()
self.py_signal_connect (self.on_update, adonthell.win_event_UPDATE)
# -- get font and theme
self.font = adonthell.win_manager_get_font ("silverleaf")
self.theme = adonthell.win_manager_get_theme ("silverleaf")
self.move (10, 150)
self.resize (300, 80)
self.set_border (self.theme)
self.set_background (self.theme)
self.set_trans_background (1)
self.info = adonthell.win_label ()
self.info.thisown = 0
self.info.move (5, 5)
self.info.resize (290, 15)
self.info.set_cursor_visible (0)
self.info.set_cursor_moveable (0)
self.info.set_font (adonthell.win_manager_get_font ("blue"))
self.info.set_text ("Python console (type 'quit' to exit)")
self.info.pack ()
self.entry = adonthell.win_write ()
self.entry.thisown = 0
self.entry.py_signal_connect (self.on_execute, adonthell.win_event_ACTIVATE_KEY)
self.entry.move (5, 20)
self.entry.resize (290, 55)
# -- causes a crash:
# self.entry.set_form (label_AUTO_HEIGHT)
self.entry.set_font (self.font)
self.entry.set_cursor_visible (1)
self.entry.set_cursor_moveable (1)
self.entry.set_text ("")
self.entry.pack ()
self.add (self.info)
self.add (self.entry)
self.set_focus_object (self.entry)
self.set_visible_background (1);
self.set_visible_border (1);
self.set_visible_all (1);
self.set_activate (1)
self.entry.set_focus (1)
self.entry.set_activate (1)
# -- callback for command execution
def on_execute (self):
text = self.entry.text_char ()
# -- if we have a command ...
if text != None:
# -- ... add it to command history ...
if self.hist_idx == 0 or text != self.history[-1]:
self.history.append (text + '\n')
self.hist_idx = len (self.history)
# -- quit?
if text == "quit" or text == "exit":
self.write_history ()
adonthell.gamedata_engine ().main_quit ()
# -- ... and try to execute it
try:
result = eval (text, self.namespace)
self.entry.set_text (str (result))
except:
type, value = sys.exc_info()[:2]
error = "Error:\n " + str (type) + ":\n \"" + str (value) + "\""
self.entry.set_text (error)
# -- catch relevant keypresses
def on_update (self):
# -- quit
if adonthell.input_has_been_pushed (adonthell.SDLK_TAB):
self.write_history ()
adonthell.gamedata_engine ().main_quit ()
# -- clear screen
elif adonthell.input_has_been_pushed (adonthell.SDLK_DELETE):
self.entry.set_text ("")
# -- previous command
elif adonthell.input_has_been_pushed (adonthell.SDLK_UP):
if self.hist_idx > 0:
self.hist_idx = self.hist_idx - 1
self.entry.set_text (self.history[ self.hist_idx ][:-1])
# -- next command
elif adonthell.input_has_been_pushed (adonthell.SDLK_DOWN):
if self.hist_idx < len (self.history) - 1:
self.hist_idx = self.hist_idx + 1
self.entry.set_text (self.history[ self.hist_idx ][:-1])
# -- Read the old history from ~/.adonthell/history
def read_history (self):
dir = adonthell.gamedata_user_data_dir ()
dir = dir + "/history"
# -- try to open the file
try:
file = open (dir, 'r')
except IOError:
return
if file != None:
self.history = file.readlines ()
self.hist_idx = len (self.history)
file.close ()
# -- Write the last 50 commands to ~/.adonthell/history
def write_history (self):
dir = adonthell.gamedata_user_data_dir ()
dir = dir + "/history"
# -- try to open the file
file = open (dir, 'w')
if file != None:
file.writelines (self.history[-50:])
file.close ()
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