class TurtleMain():
''' Launch Turtle Art in GNOME (from outside of Sugar). '''
_INSTALL_PATH = '/usr/share/sugar/activities/TurtleArt.activity'
_ALTERNATIVE_INSTALL_PATH = \
'/usr/local/share/sugar/activities/TurtleArt.activity'
_ICON_SUBPATH = 'images/turtle.png'
_GNOME_PLUGIN_SUBPATH = 'gnome_plugins'
_HOVER_HELP = '/desktop/sugar/activities/turtleart/hoverhelp'
_ORIENTATION = '/desktop/sugar/activities/turtleart/orientation'
_COORDINATE_SCALE = '/desktop/sugar/activities/turtleart/coordinatescale'
_PLUGINS_PATH = '/desktop/sugar/activities/turtleart/plugins/'
def __init__(self, lib_path, share_path):
self._setting_gconf_overrides = False
self._lib_path = lib_path
self._share_path = share_path
self._abspath = os.path.abspath('.')
file_activity_info = ConfigParser.ConfigParser()
activity_info_path = os.path.join(share_path, 'activity/activity.info')
file_activity_info.read(activity_info_path)
bundle_id = file_activity_info.get('Activity', 'bundle_id')
self.version = file_activity_info.get('Activity', 'activity_version')
self.name = file_activity_info.get('Activity', 'name')
self.summary = file_activity_info.get('Activity', 'summary')
self.website = file_activity_info.get('Activity', 'website')
self.icon_name = file_activity_info.get('Activity', 'icon')
path = os.path.join(share_path, 'locale')
if os.path.isdir(path):
gettext.bindtextdomain(bundle_id, path)
gettext.textdomain(bundle_id)
global _
_ = gettext.gettext
self._HELP_MSG = 'turtleblocks.py: ' + _('usage is') + '''
\tturtleblocks.py
\tturtleblocks.py project.tb
\tturtleblocks.py --output_png project.tb
\tturtleblocks.py -o project
\tturtleblocks.py --run project.tb
\tturtleblocks.py -r project'''
self._init_vars()
self._parse_command_line()
self._ensure_sugar_paths()
self._gnome_plugins = []
self._selected_sample = None
self._sample_window = None
if self._output_png:
# Outputing to file, so no need for a canvas
self.canvas = None
self._build_window(interactive=False)
self._draw_and_quit()
else:
self._read_initial_pos()
self._init_gnome_plugins()
self._get_gconf_settings()
self._setup_gtk()
self._build_window()
self._run_gnome_plugins()
self._start_gtk()
def _get_gconf_settings(self):
try:
from gi.repository import GConf
if hasattr(GConf.Client, "get_default"):
self.client = GConf.Client.get_default()
except ImportError:
pass
def get_config_home(self):
return CONFIG_HOME
def _get_gnome_plugin_home(self):
''' Use plugin directory associated with execution path. '''
if os.path.exists(
os.path.join(self._lib_path, self._GNOME_PLUGIN_SUBPATH)):
return os.path.join(self._lib_path, self._GNOME_PLUGIN_SUBPATH)
else:
return None
def _get_plugin_candidates(self, path):
''' Look for plugin files in plugin directory. '''
plugin_files = []
if path is not None:
candidates = os.listdir(path)
for c in candidates:
if c[-10:] == '_plugin.py' and c[0] != '#' and c[0] != '.':
plugin_files.append(c.split('.')[0])
return plugin_files
def _init_gnome_plugins(self):
''' Try launching any plugins we may have found. '''
for p in self._get_plugin_candidates(self._get_gnome_plugin_home()):
P = p.capitalize()
f = "def f(self): from gnome_plugins.%s import %s; \
return %s(self)" % (p, P, P)
plugin = {}
try:
exec f in globals(), plugin
self._gnome_plugins.append(plugin.values()[0](self))
except ImportError as e:
print 'failed to import %s: %s' % (P, str(e))
def _run_gnome_plugins(self):
''' Tell the plugin about the TurtleWindow instance. '''
for p in self._gnome_plugins:
p.set_tw(self.tw)
def _mkdir_p(self, path):
'''Create a directory in a fashion similar to `mkdir -p`.'''
try:
os.makedirs(path)
except OSError as exc:
if exc.errno == errno.EEXIST:
pass
else:
raise
def _makepath(self, path):
''' Make a path if it doesn't previously exist '''
from os import makedirs
from os.path import normpath, dirname, exists
dpath = normpath(dirname(path))
if not exists(dpath):
makedirs(dpath)
def _start_gtk(self):
''' Get a main window set up. '''
self.win.connect('configure_event', self.tw.update_overlay_position)
self.tw.parent = self.win
self.init_complete = True
if self._ta_file is None:
self.tw.load_start()
else:
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.WATCH))
GObject.idle_add(self._project_loader, self._ta_file)
self._set_gconf_overrides()
Gtk.main()
def _project_loader(self, file_name):
self.tw.load_start(self._ta_file)
self.tw.lc.trace = 0
if self._run_on_launch:
self._do_run_cb()
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
def _draw_and_quit(self):
''' Non-interactive mode: run the project, save it to a file
and quit. '''
self.tw.load_start(self._ta_file)
self.tw.lc.trace = 0
self.tw.run_button(0)
self.tw.save_as_image(self._ta_file)
def _build_window(self, interactive=True):
''' Initialize the TurtleWindow instance. '''
if interactive:
win = self.canvas.get_window()
cr = win.cairo_create()
surface = cr.get_target()
else:
img_surface = cairo.ImageSurface(cairo.FORMAT_RGB24, 1024, 768)
cr = cairo.Context(img_surface)
surface = cr.get_target()
self.turtle_canvas = surface.create_similar(
cairo.CONTENT_COLOR,
# max(1024, Gdk.Screen.width() * 2),
# max(768, Gdk.Screen.height() * 2))
Gdk.Screen.width() * 2,
Gdk.Screen.height() * 2)
# Make sure the autosave directory is writeable
if is_writeable(self._share_path):
self._autosavedirname = self._share_path
else:
self._autosavedirname = os.path.expanduser('~')
self.tw = TurtleArtWindow(self.canvas,
self._lib_path,
self._share_path,
turtle_canvas=self.turtle_canvas,
activity=self,
running_sugar=False)
self.tw.save_folder = self._abspath # os.path.expanduser('~')
if hasattr(self, 'client'):
if self.client.get_int(self._HOVER_HELP) == 1:
self.tw.no_help = True
self.hover.set_active(False)
self._do_hover_help_off_cb()
if not self.client.get_int(self._COORDINATE_SCALE) in [0, 1]:
self.tw.coord_scale = 1
else:
self.tw.coord_scale = 0
if self.client.get_int(self._ORIENTATION) == 1:
self.tw.orientation = 1
else:
self.tw.coord_scale = 0
def _set_gconf_overrides(self):
if self.tw.coord_scale == 0:
self.tw.coord_scale = 1
else:
self._do_rescale_cb(None)
if self.tw.coord_scale != 1:
self._setting_gconf_overrides = True
self.coords.set_active(True)
self._setting_gconf_overrides = False
def _init_vars(self):
''' If we are invoked to start a project from Gnome, we should make
sure our current directory is TA's source dir. '''
self._ta_file = None
self._output_png = False
self._run_on_launch = False
self.current_palette = 0
self.scale = 2.0
self.tw = None
self.init_complete = False
def _parse_command_line(self):
''' Try to make sense of the command-line arguments. '''
try:
opts, args = getopt.getopt(argv[1:], 'hor',
['help', 'output_png', 'run'])
except getopt.GetoptError as err:
print str(err)
print self._HELP_MSG
sys.exit(2)
self._run_on_launch = False
for o, a in opts:
if o in ('-h', '--help'):
print self._HELP_MSG
sys.exit()
if o in ('-o', '--output_png'):
self._output_png = True
elif o in ('-r', '--run'):
self._run_on_launch = True
else:
assert False, _('No option action:') + ' ' + o
if args:
self._ta_file = args[0]
if len(args) > 1 or self._output_png and self._ta_file is None:
print self._HELP_MSG
sys.exit()
if self._ta_file is not None:
if not self._ta_file.endswith(SUFFIX):
self._ta_file += '.tb'
if not os.path.exists(self._ta_file):
self._ta_file = os.path.join(self._abspath, self._ta_file)
if not os.path.exists(self._ta_file):
assert False, ('%s: %s' %
(self._ta_file, _('File not found')))
def _ensure_sugar_paths(self):
''' Make sure Sugar paths are present. '''
tapath = os.path.join(os.environ['HOME'], '.sugar', 'default',
'org.laptop.TurtleArtActivity')
map(self._makepath,
(os.path.join(tapath, 'data/'), os.path.join(tapath, 'instance/')))
def _read_initial_pos(self):
''' Read saved configuration. '''
try:
data_file = open(os.path.join(CONFIG_HOME, 'turtleartrc'), 'r')
except IOError:
# Opening the config file failed
# We'll assume it needs to be created
try:
self._mkdir_p(CONFIG_HOME)
data_file = open(os.path.join(CONFIG_HOME, 'turtleartrc'),
'a+')
except IOError as e:
# We can't write to the configuration file, use
# a faux file that will persist for the length of
# the session.
print _('Configuration directory not writable: %s') % (e)
data_file = cStringIO.StringIO()
data_file.write(str(50) + '\n')
data_file.write(str(50) + '\n')
data_file.write(str(800) + '\n')
data_file.write(str(550) + '\n')
data_file.seek(0)
try:
self.x = int(data_file.readline())
self.y = int(data_file.readline())
self.width = int(data_file.readline())
self.height = int(data_file.readline())
except ValueError:
self.x = 50
self.y = 50
self.width = 800
self.height = 550
def _fixed_resize_cb(self, widget=None, rect=None):
''' If a toolbar opens or closes, we need to resize the vbox
holding out scrolling window. '''
self.vbox.set_size_request(rect.width, rect.height)
self.menu_height = self.menu_bar.get_size_request()[1]
def restore_cursor(self):
''' No longer copying or sharing, so restore standard cursor. '''
self.tw.copying_blocks = False
self.tw.sharing_blocks = False
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
if hasattr(self, 'get_window'):
if hasattr(self.get_window(), 'get_cursor'):
self.get_window().set_cursor(self._old_cursor)
else:
self.get_window().set_cursor(
Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
def _setup_gtk(self):
''' Set up a scrolled window in which to run Turtle Blocks. '''
win = Gtk.Window(Gtk.WindowType.TOPLEVEL)
win.set_default_size(self.width, self.height)
win.move(self.x, self.y)
win.maximize()
win.set_title('%s %s' % (self.name, str(self.version)))
if os.path.exists(os.path.join(self._share_path, self._ICON_SUBPATH)):
win.set_icon_from_file(
os.path.join(self._share_path, self._ICON_SUBPATH))
win.show()
win.connect('delete_event', self._quit_ta)
''' Create a scrolled window to contain the turtle canvas. We
add a Fixed container in order to position text Entry widgets
on top of string and number blocks.'''
self.fixed = Gtk.Fixed()
self.fixed.connect('size-allocate', self._fixed_resize_cb)
width = Gdk.Screen.width() - 80
height = Gdk.Screen.height() - 80
self.fixed.set_size_request(width, height)
self.vbox = Gtk.VBox(False, 0)
self.vbox.show()
self.menu_bar = self._get_menu_bar()
self.vbox.pack_start(self.menu_bar, False, False, 0)
self.menu_bar.show()
self.menu_height = self.menu_bar.get_size_request()[1]
self.sw = Gtk.ScrolledWindow()
self.sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
self.sw.show()
canvas = Gtk.DrawingArea()
width = Gdk.Screen.width() * 2
height = Gdk.Screen.height() * 2
canvas.set_size_request(width, height)
self.sw.add_with_viewport(canvas)
canvas.show()
self.vbox.pack_end(self.sw, True, True, 0)
self.fixed.put(self.vbox, 0, 0)
self.fixed.show()
win.add(self.fixed)
win.show_all()
self.win = win
self.canvas = canvas
def _get_menu_bar(self):
''' Instead of Sugar toolbars, use GNOME menus. '''
menu = Gtk.Menu()
MenuBuilder.make_menu_item(menu, _('New'), self._do_new_cb)
MenuBuilder.make_menu_item(menu, _('Show sample projects'),
self._create_store)
MenuBuilder.make_menu_item(menu, _('Open'), self._do_open_cb)
MenuBuilder.make_menu_item(menu, _('Add project'), self._do_load_cb)
MenuBuilder.make_menu_item(menu, _('Load plugin'),
self._do_load_plugin_cb)
MenuBuilder.make_menu_item(menu, _('Save'), self._do_save_cb)
MenuBuilder.make_menu_item(menu, _('Save as'), self._do_save_as_cb)
# export submenu
export_submenu = Gtk.Menu()
export_menu = MenuBuilder.make_sub_menu(export_submenu, _('Export as'))
menu.append(export_menu)
MenuBuilder.make_menu_item(export_submenu, _('image'),
self._do_save_picture_cb)
MenuBuilder.make_menu_item(export_submenu, _('SVG'),
self._do_save_svg_cb)
MenuBuilder.make_menu_item(export_submenu, _('icon'),
self._do_save_as_icon_cb)
# TRANS: ODP is Open Office presentation
MenuBuilder.make_menu_item(export_submenu, _('ODP'),
self._do_save_as_odp_cb)
MenuBuilder.make_menu_item(export_submenu, _('Logo'),
self._do_save_logo_cb)
MenuBuilder.make_menu_item(export_submenu, _('Python'),
self._do_save_python_cb)
MenuBuilder.make_menu_item(menu, _('Quit'), self._quit_ta)
activity_menu = MenuBuilder.make_sub_menu(menu, _('File'))
menu = Gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Cartesian coordinates'),
self._do_cartesian_cb)
MenuBuilder.make_menu_item(menu, _('Polar coordinates'),
self._do_polar_cb)
self.coords = MenuBuilder.make_checkmenu_item(menu,
_('Rescale coordinates'),
self._do_rescale_cb,
status=False)
MenuBuilder.make_menu_item(menu, _('Grow blocks'), self._do_resize_cb,
1.5)
MenuBuilder.make_menu_item(menu, _('Shrink blocks'),
self._do_resize_cb, 0.667)
MenuBuilder.make_menu_item(menu, _('Reset block size'),
self._do_resize_cb, -1)
self.hover = MenuBuilder.make_checkmenu_item(
menu,
_('Turn on hover help'),
self._do_toggle_hover_help_cb,
status=True)
view_menu = MenuBuilder.make_sub_menu(menu, _('View'))
menu = Gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Copy'), self._do_copy_cb)
MenuBuilder.make_menu_item(menu, _('Paste'), self._do_paste_cb)
MenuBuilder.make_menu_item(menu, _('Save stack'),
self._do_save_macro_cb)
MenuBuilder.make_menu_item(menu, _('Delete stack'),
self._do_delete_macro_cb)
edit_menu = MenuBuilder.make_sub_menu(menu, _('Edit'))
menu = Gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Show palette'),
self._do_palette_cb)
MenuBuilder.make_menu_item(menu, _('Hide palette'),
self._do_hide_palette_cb)
MenuBuilder.make_menu_item(menu, _('Show/hide blocks'),
self._do_hideshow_cb)
tool_menu = MenuBuilder.make_sub_menu(menu, _('Tools'))
menu = Gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Clean'), self._do_eraser_cb)
MenuBuilder.make_menu_item(menu, _('Run'), self._do_run_cb)
MenuBuilder.make_menu_item(menu, _('Step'), self._do_step_cb)
MenuBuilder.make_menu_item(menu, _('Debug'), self._do_trace_cb)
MenuBuilder.make_menu_item(menu, _('Stop'), self._do_stop_cb)
turtle_menu = MenuBuilder.make_sub_menu(menu, _('Turtle'))
self._plugin_menu = Gtk.Menu()
plugin_men = MenuBuilder.make_sub_menu(self._plugin_menu, _('Plugins'))
menu = Gtk.Menu()
MenuBuilder.make_menu_item(menu, _('About...'), self._do_about_cb)
help_menu = MenuBuilder.make_sub_menu(menu, _('Help'))
menu_bar = Gtk.MenuBar()
menu_bar.append(activity_menu)
menu_bar.append(edit_menu)
menu_bar.append(view_menu)
menu_bar.append(tool_menu)
menu_bar.append(turtle_menu)
menu_bar.append(plugin_men)
# Add menus for plugins
for p in self._gnome_plugins:
menu_item = p.get_menu()
if menu_item is not None:
menu_bar.append(menu_item)
menu_bar.append(help_menu)
return menu_bar
def _quit_ta(self, widget=None, e=None):
''' Save changes on exit '''
project_empty = self.tw.is_project_empty()
if not project_empty:
resp = self._show_save_dialog(e is None)
if resp == Gtk.ResponseType.YES:
if self.tw.is_new_project():
self._save_as()
else:
if self.tw.project_has_changed():
self._save_changes()
elif resp == Gtk.ResponseType.CANCEL:
return
if hasattr(self, 'client'):
self.client.set_int(self._ORIENTATION, self.tw.orientation)
for plugin in self.tw.turtleart_plugins.values():
if hasattr(plugin, 'quit'):
plugin.quit()
# Clean up temporary files
if os.path.exists(TMP_SVG_PATH):
os.remove(TMP_SVG_PATH)
if os.path.exists(TMP_ODP_PATH):
os.remove(TMP_ODP_PATH)
Gtk.main_quit()
exit()
def _show_save_dialog(self, add_cancel=False):
''' Dialog for save project '''
dlg = Gtk.MessageDialog(parent=None,
type=Gtk.MessageType.INFO,
buttons=ButtonsType.YES_NO,
message_format=_('You have unsaved work. \
Would you like to save before quitting?'))
dlg.set_default_response(Gtk.ResponseType.YES)
if add_cancel:
dlg.add_button(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL)
dlg.set_title(_('Save project?'))
dlg.set_property('skip-taskbar-hint', False)
resp = dlg.run()
dlg.destroy()
return resp
def _reload_plugin_alert(self, tmp_dir, tmp_path, plugin_path, plugin_name,
file_info):
print "Already installed"
title = _('Plugin %s already installed') % plugin_name
msg = _('Do you want to reinstall %s?') % plugin_name
dlg = Gtk.MessageDialog(parent=None,
type=Gtk.MessageType.INFO,
buttons=Gtk.ButtonsType.YES_NO,
message_format=title)
dlg.format_secondary_text(msg)
dlg.set_title(title)
dlg.set_property('skip-taskbar-hint', False)
resp = dlg.run()
dlg.destroy()
if resp is Gtk.ResponseType.OK:
complete_plugin_install(tmp_dir, tmp_path, plugin_path,
plugin_name, file_info)
elif resp is Gtk.ResponseType.CANCEL:
cancel_plugin_install(tmp_dir)
def _do_new_cb(self, widget):
''' Callback for new project. '''
self.tw.new_project()
self.tw.load_start()
def _do_open_cb(self, widget):
''' Callback for open project. '''
self.tw.load_file_from_chooser(True)
def _do_load_cb(self, widget):
''' Callback for load project (add to current project). '''
self.tw.load_file_from_chooser(False)
def _do_load_plugin_cb(self, widget):
file_path, loaddir = get_load_name('.tar.gz')
if file_path is None:
return
try:
# Copy to tmp file since some systems had trouble
# with gunzip directly from datastore
datapath = get_path(None, 'instance')
if not os.path.exists(datapath):
os.makedirs(datapath)
tmpfile = os.path.join(datapath, 'tmpfile.tar.gz')
subprocess.call(['cp', file_path, tmpfile])
status = subprocess.call(['gunzip', tmpfile])
if status == 0:
tar_fd = tarfile.open(tmpfile[:-3], 'r')
else:
tar_fd = tarfile.open(tmpfile, 'r')
except:
tar_fd = tarfile.open(file_path, 'r')
tmp_dir = tempfile.mkdtemp()
try:
tar_fd.extractall(tmp_dir)
load_a_plugin(self, tmp_dir)
self.restore_cursor()
except:
self.restore_cursor()
finally:
tar_fd.close()
# Remove tmpfile.tar
subprocess.call(['rm', os.path.join(datapath, 'tmpfile.tar')])
def _do_save_cb(self, widget):
''' Callback for save project. '''
self.tw.save_file(self._ta_file)
def _do_save_as_cb(self, widget):
''' Callback for save-as project. '''
self._save_as()
def autosave(self):
''' Autosave is called each type the run button is pressed '''
temp_load_save_folder = self.tw.load_save_folder
temp_save_folder = self.tw.save_folder
self.tw.load_save_folder = self._autosavedirname
self.tw.save_folder = self._autosavedirname
self.tw.save_file(
file_name=os.path.join(self._autosavedirname, 'autosave.tb'))
self.tw.save_folder = temp_save_folder
self.tw.load_save_folder = temp_load_save_folder
def _save_as(self):
''' Save as is called from callback and quit '''
self.tw.save_file_name = self._ta_file
self.tw.save_file()
def _save_changes(self):
''' Save changes to current project '''
self.tw.save_file_name = self._ta_file
self.tw.save_file(self.tw._loaded_project)
def _do_save_picture_cb(self, widget):
''' Callback for save canvas. '''
self.tw.save_as_image()
def _do_save_svg_cb(self, widget):
''' Callback for save canvas as SVG. '''
self.tw.save_as_image(svg=True)
def _do_save_as_icon_cb(self, widget):
''' Callback for save canvas. '''
self.tw.write_svg_operation()
self.tw.save_as_icon()
def _do_save_as_odp_cb(self, widget):
''' Callback for save canvas. '''
self.tw.save_as_odp()
def _do_save_logo_cb(self, widget):
''' Callback for save project to Logo. '''
logocode = save_logo(self.tw)
if len(logocode) == 0:
return
save_type = '.lg'
filename, self.tw.load_save_folder = get_save_name(
save_type, None, 'logosession')
if isinstance(filename, unicode):
filename = filename.encode('utf-8')
if filename is not None:
f = file(filename, 'w')
f.write(logocode)
f.close()
def _do_save_python_cb(self, widget):
''' Callback for saving the project as Python code. '''
# catch PyExportError and display a user-friendly message instead
try:
pythoncode = save_python(self.tw)
except PyExportError as pyee:
if pyee.block is not None:
pyee.block.highlight()
self.tw.showlabel('status', str(pyee))
print pyee
return
if not pythoncode:
return
# use name of TA project if it has been saved already
default_name = self.tw.save_file_name
if default_name is None:
default_name = _("myproject")
elif default_name.endswith(".ta") or default_name.endswith(".tb"):
default_name = default_name[:-3]
save_type = '.py'
filename, self.tw.load_save_folder = get_save_name(
save_type, None, default_name)
if isinstance(filename, unicode):
filename = filename.encode('utf-8')
if filename is not None:
f = file(filename, 'w')
f.write(pythoncode)
f.close()
def _do_resize_cb(self, widget, factor):
''' Callback to resize blocks. '''
if factor == -1:
self.tw.block_scale = 2.0
else:
self.tw.block_scale *= factor
self.tw.resize_blocks()
def _do_cartesian_cb(self, button):
''' Callback to display/hide Cartesian coordinate overlay. '''
self.tw.set_cartesian(True)
def _do_polar_cb(self, button):
''' Callback to display/hide Polar coordinate overlay. '''
self.tw.set_polar(True)
def _do_rescale_cb(self, button):
''' Callback to rescale coordinate space. '''
if self._setting_gconf_overrides:
return
if self.tw.coord_scale == 1:
self.tw.coord_scale = self.tw.height / 40
self.tw.update_overlay_position()
if self.tw.cartesian is True:
self.tw.overlay_shapes['Cartesian_labeled'].hide()
self.tw.overlay_shapes['Cartesian'].set_layer(OVERLAY_LAYER)
default_values['forward'] = [10]
default_values['back'] = [10]
default_values['arc'] = [90, 10]
default_values['setpensize'] = [1]
self.tw.turtles.get_active_turtle().set_pen_size(1)
else:
self.tw.coord_scale = 1
if self.tw.cartesian is True:
self.tw.overlay_shapes['Cartesian'].hide()
self.tw.overlay_shapes['Cartesian_labeled'].set_layer(
OVERLAY_LAYER)
default_values['forward'] = [100]
default_values['back'] = [100]
default_values['arc'] = [90, 100]
default_values['setpensize'] = [5]
self.tw.turtles.get_active_turtle().set_pen_size(5)
if hasattr(self, 'client'):
self.client.set_int(self._COORDINATE_SCALE,
int(self.tw.coord_scale))
self.tw.recalculate_constants()
def _do_toggle_hover_help_cb(self, button):
''' Toggle hover help on/off '''
self.tw.no_help = not (button.get_active())
if self.tw.no_help:
self._do_hover_help_off_cb()
else:
self._do_hover_help_on_cb()
def _do_toggle_plugin_cb(self, button):
name = button.get_label()
path_gconf = self._PLUGINS_PATH + name
if button.get_active():
#path = self.tw.turtleart_plugin_list[name]
#self.tw.init_plugin(name, path)
#instance = self.tw._get_plugin_instance(name)
#instance.setup()
self.client.set_int(path_gconf, 1)
l = _('Please restart %s in order to use the plugin.') % self.name
else:
#instance = self.tw._get_plugin_instance(name)
#instance.quit()
self.client.set_int(path_gconf, 0)
l = _(
'Please restart %s in order to unload the plugin.') % self.name
self.tw.showlabel('status', l)
def _do_hover_help_on_cb(self):
''' Turn hover help on '''
if hasattr(self, 'client'):
self.client.set_int(self._HOVER_HELP, 0)
def _do_hover_help_off_cb(self):
''' Turn hover help off '''
self.tw.last_label = None
if self.tw.status_spr is not None:
self.tw.status_spr.hide()
if hasattr(self, 'client'):
self.client.set_int(self._HOVER_HELP, 1)
def _do_palette_cb(self, widget):
''' Callback to show/hide palette of blocks. '''
self.tw.show_palette(self.current_palette)
self.current_palette += 1
if self.current_palette == len(self.tw.palettes):
self.current_palette = 0
def _do_hide_palette_cb(self, widget):
''' Hide the palette of blocks. '''
self.tw.hide_palette()
def _do_hideshow_cb(self, widget):
''' Hide/show the blocks. '''
self.tw.hideshow_button()
def _do_eraser_cb(self, widget):
''' Callback for eraser button. '''
self.tw.eraser_button()
return
def _do_run_cb(self, widget=None):
''' Callback for run button (rabbit). '''
self.tw.lc.trace = 0
self.tw.hideblocks()
self.tw.display_coordinates(clear=True)
self.tw.toolbar_shapes['stopiton'].set_layer(TAB_LAYER)
self.tw.run_button(0, running_from_button_push=True)
return
def _do_step_cb(self, widget):
''' Callback for step button (turtle). '''
self.tw.lc.trace = 1
self.tw.run_button(3, running_from_button_push=True)
return
def _do_trace_cb(self, widget):
''' Callback for debug button (bug). '''
self.tw.lc.trace = 1
self.tw.run_button(9, running_from_button_push=True)
return
def _do_stop_cb(self, widget):
''' Callback for stop button. '''
if self.tw.running_blocks:
self.tw.toolbar_shapes['stopiton'].hide()
if self.tw.hide:
self.tw.showblocks()
self.tw.stop_button()
self.tw.display_coordinates()
def _do_save_macro_cb(self, widget):
''' Callback for save stack button. '''
self.tw.copying_blocks = False
self.tw.deleting_blocks = False
if self.tw.saving_blocks:
self.win.get_window().set_cursor(
Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
self.tw.saving_blocks = False
else:
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.HAND1))
self.tw.saving_blocks = True
def _do_delete_macro_cb(self, widget):
''' Callback for delete stack button. '''
self.tw.copying_blocks = False
self.tw.saving_blocks = False
if self.tw.deleting_blocks:
self.win.get_window().set_cursor(
Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
self.tw.deleting_blocks = False
else:
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.HAND1))
self.tw.deleting_blocks = True
def _do_copy_cb(self, button):
''' Callback for copy button. '''
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
if self.tw.copying_blocks:
self.win.get_window().set_cursor(
Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
self.tw.copying_blocks = False
else:
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.HAND1))
self.tw.copying_blocks = True
def _do_paste_cb(self, button):
''' Callback for paste button. '''
self.tw.copying_blocks = False
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
clipboard = Gtk.Clipboard()
text = clipboard.wait_for_text()
if text is not None:
if self.tw.selected_blk is not None and \
self.tw.selected_blk.name == 'string' and \
text[0:2] != '[[': # Don't paste block data into a string
self.tw.paste_text_in_block_label(text)
self.tw.selected_blk.resize()
else:
self.tw.process_data(data_from_string(text),
self.tw.paste_offset)
self.tw.paste_offset += PASTE_OFFSET
def _do_about_cb(self, widget):
about = Gtk.AboutDialog()
about.set_program_name(_(self.name))
about.set_version(self.version)
about.set_comments(_(self.summary))
about.set_website(self.website)
logo_path = os.path.join(self._share_path, 'activity',
self.icon_name + '.svg')
about.set_logo(GdkPixbuf.Pixbuf.new_from_file(logo_path))
about.run()
about.destroy()
def _window_event(self, event, data):
''' Callback for resize event. '''
data_file = open('.turtleartrc', 'w')
data_file.write(str(data.x) + '\n')
data_file.write(str(data.y) + '\n')
data_file.write(str(data.width) + '\n')
data_file.write(str(data.height) + '\n')
def nick_changed(self, nick):
''' TODO: Rename default turtle in dictionary '''
pass
def color_changed(self, colors):
''' Reskin turtle with collaboration colors '''
turtle = self.tw.turtles.get_turtle(self.tw.default_turtle_name)
try:
turtle.colors = colors.split(',')
except:
turtle.colors = DEFAULT_TURTLE_COLORS
turtle.custom_shapes = True # Force regeneration of shapes
turtle.reset_shapes()
turtle.show()
def _get_execution_dir(self):
''' From whence is the program being executed? '''
dirname = os.path.dirname(__file__)
if dirname == '':
if os.path.exists(
os.path.join('~', 'Activities', 'TurtleArt.activity')):
return os.path.join('~', 'Activities', 'TurtleArt.activity')
elif os.path.exists(self._INSTALL_PATH):
return self._INSTALL_PATH
elif os.path.exists(self._ALTERNATIVE_INSTALL_PATH):
return self._ALTERNATIVE_INSTALL_PATH
else:
return os.path.abspath('.')
else:
return os.path.abspath(dirname)
def restore_state(self):
''' Anything that needs restoring after a clear screen can go here '''
pass
def hide_store(self, widget=None):
if self._sample_window is not None:
self._sample_box.hide()
def _create_store(self, widget=None):
if self._sample_window is None:
self._sample_box = Gtk.EventBox()
self._sample_window = Gtk.ScrolledWindow()
self._sample_window.set_policy(Gtk.PolicyType.NEVER,
Gtk.PolicyType.AUTOMATIC)
width = Gdk.Screen.width() / 2
height = Gdk.Screen.height() / 2
self._sample_window.set_size_request(width, height)
self._sample_window.show()
store = Gtk.ListStore(GdkPixbuf.Pixbuf, str)
icon_view = Gtk.IconView()
icon_view.set_model(store)
icon_view.set_selection_mode(Gtk.SelectionMode.SINGLE)
icon_view.connect('selection-changed', self._sample_selected,
store)
icon_view.set_pixbuf_column(0)
icon_view.grab_focus()
self._sample_window.add_with_viewport(icon_view)
icon_view.show()
self._fill_samples_list(store)
width = Gdk.Screen.width() / 4
height = Gdk.Screen.height() / 4
self._sample_box.add(self._sample_window)
self.fixed.put(self._sample_box, width, height)
self._sample_window.show()
self._sample_box.show()
def _get_selected_path(self, widget, store):
try:
iter_ = store.get_iter(widget.get_selected_items()[0])
image_path = store.get(iter_, 1)[0]
return image_path, iter_
except:
return None
def _sample_selected(self, widget, store):
selected = self._get_selected_path(widget, store)
if selected is None:
self._selected_sample = None
self._sample_window.hide()
return
image_path, _iter = selected
iter_ = store.get_iter(widget.get_selected_items()[0])
image_path = store.get(iter_, 1)[0]
self._selected_sample = image_path
self._sample_window.hide()
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.WATCH))
Gobject.idle_add(self._sample_loader)
def _sample_loader(self):
# Convert from thumbnail path to sample path
basename = os.path.basename(self._selected_sample)[:-4]
for suffix in ['.ta', '.tb']:
file_path = os.path.join(self._share_path, 'samples',
basename + suffix)
if os.path.exists(file_path):
self.tw.load_files(file_path)
break
self.win.get_window().set_cursor(Gdk.Cursor(Gdk.CursorType.LEFT_PTR))
def _fill_samples_list(self, store):
'''
Append images from the artwork_paths to the store.
'''
for filepath in self._scan_for_samples():
pixbuf = None
pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_size(filepath, 100, 100)
store.append([pixbuf, filepath])
def _scan_for_samples(self):
path = os.path.join(self._share_path, "samples/thumbnails")
samples = []
for name in os.listdir(path):
if name.endswith(".png"):
samples.append(os.path.join(self._share_path, name))
samples.sort()
return samples
class TurtleMain():
''' Launch Turtle Art in GNOME (from outside of Sugar). '''
_INSTALL_PATH = '/usr/share/sugar/activities/TurtleArt.activity'
_ALTERNATIVE_INSTALL_PATH = \
'/usr/local/share/sugar/activities/TurtleArt.activity'
_ICON_SUBPATH = 'images/turtle.png'
_GNOME_PLUGIN_SUBPATH = 'gnome_plugins'
_HOVER_HELP = '/desktop/sugar/activities/turtleart/hoverhelp'
_ORIENTATION = '/desktop/sugar/activities/turtleart/orientation'
_COORDINATE_SCALE = '/desktop/sugar/activities/turtleart/coordinatescale'
_PLUGINS_PATH = '/desktop/sugar/activities/turtleart/plugins/'
def __init__(self):
self._setting_gconf_overrides = False
self._abspath = os.path.abspath('.')
self._execdirname = self._get_execution_dir()
if self._execdirname is not None:
os.chdir(self._execdirname)
file_activity_info = ConfigParser.ConfigParser()
activity_info_path = os.path.abspath('./activity/activity.info')
file_activity_info.read(activity_info_path)
bundle_id = file_activity_info.get('Activity', 'bundle_id')
self.version = file_activity_info.get('Activity', 'activity_version')
self.name = file_activity_info.get('Activity', 'name')
self.summary = file_activity_info.get('Activity', 'summary')
self.website = file_activity_info.get('Activity', 'website')
self.icon_name = file_activity_info.get('Activity', 'icon')
self.bundle_path = self._abspath
path = os.path.abspath('./locale/')
gettext.bindtextdomain(bundle_id, path)
gettext.textdomain(bundle_id)
global _
_ = gettext.gettext
self._HELP_MSG = 'turtleblocks.py: ' + _('usage is') + '''
\tturtleblocks.py
\tturtleblocks.py project.tb
\tturtleblocks.py --output_png project.tb
\tturtleblocks.py -o project
\tturtleblocks.py --run project.tb
\tturtleblocks.py -r project'''
self._init_vars()
self._parse_command_line()
self._ensure_sugar_paths()
self._gnome_plugins = []
self._selected_sample = None
self._sample_window = None
self.has_toolbarbox = False
if self._output_png:
# Outputing to file, so no need for a canvas
self.canvas = None
self._build_window(interactive=False)
self._draw_and_quit()
else:
self._read_initial_pos()
self._init_gnome_plugins()
self._get_gconf_settings()
self._setup_gtk()
self._build_window()
self._run_gnome_plugins()
self._start_gtk()
def _get_gconf_settings(self):
self.client = gconf.client_get_default()
def get_config_home(self):
return CONFIG_HOME
def _get_gnome_plugin_home(self):
''' Use plugin directory associated with execution path. '''
if os.path.exists(os.path.join(self._execdirname,
self._GNOME_PLUGIN_SUBPATH)):
return os.path.join(self._execdirname, self._GNOME_PLUGIN_SUBPATH)
else:
return None
def _get_plugin_candidates(self, path):
''' Look for plugin files in plugin directory. '''
plugin_files = []
if path is not None:
candidates = os.listdir(path)
for c in candidates:
if c[-10:] == '_plugin.py' and c[0] != '#' and c[0] != '.':
plugin_files.append(c.split('.')[0])
return plugin_files
def _init_gnome_plugins(self):
''' Try launching any plugins we may have found. '''
for p in self._get_plugin_candidates(self._get_gnome_plugin_home()):
P = p.capitalize()
f = "def f(self): from gnome_plugins.%s import %s; \
return %s(self)" % (p, P, P)
plugin = {}
try:
exec f in globals(), plugin
self._gnome_plugins.append(plugin.values()[0](self))
except ImportError as e:
print 'failed to import %s: %s' % (P, str(e))
def _run_gnome_plugins(self):
''' Tell the plugin about the TurtleWindow instance. '''
for p in self._gnome_plugins:
p.set_tw(self.tw)
def _mkdir_p(self, path):
'''Create a directory in a fashion similar to `mkdir -p`.'''
try:
os.makedirs(path)
except OSError as exc:
if exc.errno == errno.EEXIST:
pass
else:
raise
def _makepath(self, path):
''' Make a path if it doesn't previously exist '''
from os import makedirs
from os.path import normpath, dirname, exists
dpath = normpath(dirname(path))
if not exists(dpath):
makedirs(dpath)
def _start_gtk(self):
''' Get a main window set up. '''
self.win.connect('configure_event', self.tw.update_overlay_position)
self.tw.parent = self.win
self.init_complete = True
if self._ta_file is None:
self.tw.load_start()
else:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.WATCH))
gobject.idle_add(self._project_loader, self._ta_file)
self._set_gconf_overrides()
gtk.main()
def _project_loader(self, file_name):
self.tw.load_start(self._ta_file)
self.tw.lc.trace = 0
if self._run_on_launch:
self._do_run_cb()
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
def _draw_and_quit(self):
''' Non-interactive mode: run the project, save it to a file
and quit. '''
self.tw.load_start(self._ta_file)
self.tw.lc.trace = 0
self.tw.run_button(0)
self.tw.save_as_image(self._ta_file)
def _build_window(self, interactive=True):
''' Initialize the TurtleWindow instance. '''
if interactive:
win = self.canvas.get_window()
cr = win.cairo_create()
surface = cr.get_target()
else:
img_surface = cairo.ImageSurface(cairo.FORMAT_RGB24,
1024, 768)
cr = cairo.Context(img_surface)
surface = cr.get_target()
self.turtle_canvas = surface.create_similar(
cairo.CONTENT_COLOR,
# max(1024, gtk.gdk.screen_width() * 2),
# max(768, gtk.gdk.screen_height() * 2))
gtk.gdk.screen_width() * 2,
gtk.gdk.screen_height() * 2)
# Make sure the autosave directory is writeable
if is_writeable(self._execdirname):
self._autosavedirname = self._execdirname
else:
self._autosavedirname = os.path.expanduser('~')
self.tw = TurtleArtWindow(self.canvas, self._execdirname,
turtle_canvas=self.turtle_canvas,
activity=self, running_sugar=False)
self.tw.save_folder = self._abspath # os.path.expanduser('~')
if hasattr(self, 'client'):
if self.client.get_int(self._HOVER_HELP) == 1:
self.tw.no_help = True
self.hover.set_active(False)
self._do_hover_help_off_cb()
if not self.client.get_int(self._COORDINATE_SCALE) in [0, 1]:
self.tw.coord_scale = 1
else:
self.tw.coord_scale = 0
if self.client.get_int(self._ORIENTATION) == 1:
self.tw.orientation = 1
def _set_gconf_overrides(self):
if self.tw.coord_scale == 0:
self.tw.coord_scale = 1
else:
self._do_rescale_cb(None)
if self.tw.coord_scale != 1:
self._setting_gconf_overrides = True
self.coords.set_active(True)
self._setting_gconf_overrides = False
def _init_vars(self):
''' If we are invoked to start a project from Gnome, we should make
sure our current directory is TA's source dir. '''
self._ta_file = None
self._output_png = False
self._run_on_launch = False
self.current_palette = 0
self.scale = 2.0
self.tw = None
self.init_complete = False
def _parse_command_line(self):
''' Try to make sense of the command-line arguments. '''
try:
opts, args = getopt.getopt(argv[1:], 'hor',
['help', 'output_png', 'run'])
except getopt.GetoptError as err:
print str(err)
print self._HELP_MSG
sys.exit(2)
self._run_on_launch = False
for o, a in opts:
if o in ('-h', '--help'):
print self._HELP_MSG
sys.exit()
if o in ('-o', '--output_png'):
self._output_png = True
elif o in ('-r', '--run'):
self._run_on_launch = True
else:
assert False, _('No option action:') + ' ' + o
if args:
self._ta_file = args[0]
if len(args) > 1 or self._output_png and self._ta_file is None:
print self._HELP_MSG
sys.exit()
if self._ta_file is not None:
if not self._ta_file.endswith(SUFFIX):
self._ta_file += '.tb'
if not os.path.exists(self._ta_file):
self._ta_file = os.path.join(self._abspath, self._ta_file)
if not os.path.exists(self._ta_file):
assert False, ('%s: %s' %
(self._ta_file, _('File not found')))
def _ensure_sugar_paths(self):
''' Make sure Sugar paths are present. '''
tapath = os.path.join(os.environ['HOME'], '.sugar', 'default',
'org.laptop.TurtleArtActivity')
map(self._makepath, (os.path.join(tapath, 'data/'),
os.path.join(tapath, 'instance/')))
def _read_initial_pos(self):
''' Read saved configuration. '''
try:
data_file = open(os.path.join(CONFIG_HOME, 'turtleartrc'), 'r')
except IOError:
# Opening the config file failed
# We'll assume it needs to be created
try:
self._mkdir_p(CONFIG_HOME)
data_file = open(os.path.join(CONFIG_HOME, 'turtleartrc'),
'a+')
except IOError as e:
# We can't write to the configuration file, use
# a faux file that will persist for the length of
# the session.
print _('Configuration directory not writable: %s') % (e)
data_file = cStringIO.StringIO()
data_file.write(str(50) + '\n')
data_file.write(str(50) + '\n')
data_file.write(str(800) + '\n')
data_file.write(str(550) + '\n')
data_file.seek(0)
try:
self.x = int(data_file.readline())
self.y = int(data_file.readline())
self.width = int(data_file.readline())
self.height = int(data_file.readline())
except ValueError:
self.x = 50
self.y = 50
self.width = 800
self.height = 550
def _fixed_resize_cb(self, widget=None, rect=None):
''' If a toolbar opens or closes, we need to resize the vbox
holding out scrolling window. '''
self.vbox.set_size_request(rect[2], rect[3])
self.menu_height = self.menu_bar.size_request()[1]
def restore_cursor(self):
''' No longer copying or sharing, so restore standard cursor. '''
self.tw.copying_blocks = False
self.tw.sharing_blocks = False
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
if hasattr(self, 'get_window'):
if hasattr(self.get_window(), 'get_cursor'):
self.get_window().set_cursor(self._old_cursor)
else:
self.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
def _setup_gtk(self):
''' Set up a scrolled window in which to run Turtle Blocks. '''
win = gtk.Window(gtk.WINDOW_TOPLEVEL)
win.set_default_size(self.width, self.height)
win.move(self.x, self.y)
win.maximize()
win.set_title('%s %s' % (self.name, str(self.version)))
if os.path.exists(os.path.join(self._execdirname, self._ICON_SUBPATH)):
win.set_icon_from_file(os.path.join(self._execdirname,
self._ICON_SUBPATH))
win.show()
win.connect('delete_event', self._quit_ta)
''' Create a scrolled window to contain the turtle canvas. We
add a Fixed container in order to position text Entry widgets
on top of string and number blocks.'''
self.fixed = gtk.Fixed()
self.fixed.connect('size-allocate', self._fixed_resize_cb)
width = gtk.gdk.screen_width() - 80
height = gtk.gdk.screen_height() - 80
self.fixed.set_size_request(width, height)
self.vbox = gtk.VBox(False, 0)
self.vbox.show()
self.menu_bar = self._get_menu_bar()
self.vbox.pack_start(self.menu_bar, False, False)
self.menu_bar.show()
self.menu_height = self.menu_bar.size_request()[1]
self.sw = gtk.ScrolledWindow()
self.sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
self.sw.show()
canvas = gtk.DrawingArea()
width = gtk.gdk.screen_width() * 2
height = gtk.gdk.screen_height() * 2
canvas.set_size_request(width, height)
self.sw.add_with_viewport(canvas)
canvas.show()
self.vbox.pack_end(self.sw, True, True)
self.fixed.put(self.vbox, 0, 0)
self.fixed.show()
win.add(self.fixed)
win.show_all()
self.win = win
self.canvas = canvas
def _get_menu_bar(self):
''' Instead of Sugar toolbars, use GNOME menus. '''
menu = gtk.Menu()
MenuBuilder.make_menu_item(menu, _('New'), self._do_new_cb)
MenuBuilder.make_menu_item(menu, _('Show sample projects'),
self._create_store)
MenuBuilder.make_menu_item(menu, _('Open'), self._do_open_cb)
MenuBuilder.make_menu_item(menu, _('Add project'), self._do_load_cb)
MenuBuilder.make_menu_item(menu, _('Load plugin'),
self._do_load_plugin_cb)
MenuBuilder.make_menu_item(menu, _('Save'), self._do_save_cb)
MenuBuilder.make_menu_item(menu, _('Save as'), self._do_save_as_cb)
# export submenu
export_submenu = gtk.Menu()
export_menu = MenuBuilder.make_sub_menu(export_submenu, _('Export as'))
menu.append(export_menu)
MenuBuilder.make_menu_item(export_submenu, _('image'),
self._do_save_picture_cb)
MenuBuilder.make_menu_item(export_submenu, _('SVG'),
self._do_save_svg_cb)
MenuBuilder.make_menu_item(export_submenu, _('icon'),
self._do_save_as_icon_cb)
# TRANS: ODP is Open Office presentation
MenuBuilder.make_menu_item(export_submenu, _('ODP'),
self._do_save_as_odp_cb)
MenuBuilder.make_menu_item(export_submenu, _('Logo'),
self._do_save_logo_cb)
MenuBuilder.make_menu_item(export_submenu, _('Python'),
self._do_save_python_cb)
MenuBuilder.make_menu_item(menu, _('Quit'), self._quit_ta)
activity_menu = MenuBuilder.make_sub_menu(menu, _('File'))
menu = gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Cartesian coordinates'),
self._do_cartesian_cb)
MenuBuilder.make_menu_item(menu, _('Polar coordinates'),
self._do_polar_cb)
self.coords = MenuBuilder.make_checkmenu_item(
menu, _('Rescale coordinates'),
self._do_rescale_cb, status=False)
MenuBuilder.make_menu_item(menu, _('Grow blocks'),
self._do_resize_cb, 1.5)
MenuBuilder.make_menu_item(menu, _('Shrink blocks'),
self._do_resize_cb, 0.667)
MenuBuilder.make_menu_item(menu, _('Reset block size'),
self._do_resize_cb, -1)
self.hover = MenuBuilder.make_checkmenu_item(
menu, _('Turn on hover help'),
self._do_toggle_hover_help_cb, status=True)
view_menu = MenuBuilder.make_sub_menu(menu, _('View'))
menu = gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Copy'), self._do_copy_cb)
MenuBuilder.make_menu_item(menu, _('Paste'), self._do_paste_cb)
MenuBuilder.make_menu_item(menu, _('Save stack'),
self._do_save_macro_cb)
MenuBuilder.make_menu_item(menu, _('Delete stack'),
self._do_delete_macro_cb)
edit_menu = MenuBuilder.make_sub_menu(menu, _('Edit'))
menu = gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Show palette'),
self._do_palette_cb)
MenuBuilder.make_menu_item(menu, _('Hide palette'),
self._do_hide_palette_cb)
MenuBuilder.make_menu_item(menu, _('Show/hide blocks'),
self._do_hideshow_cb)
tool_menu = MenuBuilder.make_sub_menu(menu, _('Tools'))
menu = gtk.Menu()
MenuBuilder.make_menu_item(menu, _('Clean'), self._do_eraser_cb)
MenuBuilder.make_menu_item(menu, _('Run'), self._do_run_cb)
MenuBuilder.make_menu_item(menu, _('Step'), self._do_step_cb)
MenuBuilder.make_menu_item(menu, _('Debug'), self._do_trace_cb)
MenuBuilder.make_menu_item(menu, _('Stop'), self._do_stop_cb)
turtle_menu = MenuBuilder.make_sub_menu(menu, _('Turtle'))
self._plugin_menu = gtk.Menu()
plugin_men = MenuBuilder.make_sub_menu(self._plugin_menu, _('Plugins'))
menu = gtk.Menu()
MenuBuilder.make_menu_item(menu, _('About...'), self._do_about_cb)
help_menu = MenuBuilder.make_sub_menu(menu, _('Help'))
menu_bar = gtk.MenuBar()
menu_bar.append(activity_menu)
menu_bar.append(edit_menu)
menu_bar.append(view_menu)
menu_bar.append(tool_menu)
menu_bar.append(turtle_menu)
menu_bar.append(plugin_men)
# Add menus for plugins
for p in self._gnome_plugins:
menu_item = p.get_menu()
if menu_item is not None:
menu_bar.append(menu_item)
menu_bar.append(help_menu)
return menu_bar
def _quit_ta(self, widget=None, e=None):
''' Save changes on exit '''
project_empty = self.tw.is_project_empty()
if not project_empty:
resp = self._show_save_dialog(e is None)
if resp == gtk.RESPONSE_YES:
if self.tw.is_new_project():
self._save_as()
else:
if self.tw.project_has_changed():
self._save_changes()
elif resp == gtk.RESPONSE_CANCEL:
return
if hasattr(self, 'client'):
self.client.set_int(self._ORIENTATION, self.tw.orientation)
for plugin in self.tw.turtleart_plugins.values():
if hasattr(plugin, 'quit'):
plugin.quit()
# Clean up temporary files
if os.path.exists(TMP_SVG_PATH):
os.remove(TMP_SVG_PATH)
if os.path.exists(TMP_ODP_PATH):
os.remove(TMP_ODP_PATH)
gtk.main_quit()
exit()
def _show_save_dialog(self, add_cancel=False):
''' Dialog for save project '''
dlg = gtk.MessageDialog(parent=None, type=gtk.MESSAGE_INFO,
buttons=gtk.BUTTONS_YES_NO,
message_format=_('You have unsaved work. \
Would you like to save before quitting?'))
dlg.set_default_response(gtk.RESPONSE_YES)
if add_cancel:
dlg.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
dlg.set_title(_('Save project?'))
dlg.set_property('skip-taskbar-hint', False)
resp = dlg.run()
dlg.destroy()
return resp
def _reload_plugin_alert(self, tmp_dir, tmp_path, plugin_path, plugin_name,
file_info):
print "Already installed"
title = _('Plugin %s already installed') % plugin_name
msg = _('Do you want to reinstall %s?') % plugin_name
dlg = gtk.MessageDialog(parent=None, type=gtk.MESSAGE_INFO,
buttons=gtk.BUTTONS_YES_NO,
message_format=title)
dlg.format_secondary_text(msg)
dlg.set_title(title)
dlg.set_property('skip-taskbar-hint', False)
resp = dlg.run()
dlg.destroy()
if resp is gtk.RESPONSE_OK:
complete_plugin_install(tmp_dir, tmp_path, plugin_path,
plugin_name, file_info)
elif resp is gtk.RESPONSE_CANCEL:
cancel_plugin_install(tmp_dir)
def _do_new_cb(self, widget):
''' Callback for new project. '''
self.tw.new_project()
self.tw.load_start()
def _do_open_cb(self, widget):
''' Callback for open project. '''
self.tw.load_file_from_chooser(True)
def _do_load_cb(self, widget):
''' Callback for load project (add to current project). '''
self.tw.load_file_from_chooser(False)
def _do_load_plugin_cb(self, widget):
self.tw.load_save_folder = self._get_execution_dir()
file_path, loaddir = get_load_name('.tar.gz', self.tw.load_save_folder)
if file_path is None:
return
try:
# Copy to tmp file since some systems had trouble
# with gunzip directly from datastore
datapath = get_path(None, 'instance')
if not os.path.exists(datapath):
os.makedirs(datapath)
tmpfile = os.path.join(datapath, 'tmpfile.tar.gz')
subprocess.call(['cp', file_path, tmpfile])
status = subprocess.call(['gunzip', tmpfile])
if status == 0:
tar_fd = tarfile.open(tmpfile[:-3], 'r')
else:
tar_fd = tarfile.open(tmpfile, 'r')
except:
tar_fd = tarfile.open(file_path, 'r')
tmp_dir = tempfile.mkdtemp()
try:
tar_fd.extractall(tmp_dir)
load_a_plugin(self, tmp_dir)
self.restore_cursor()
except:
self.restore_cursor()
finally:
tar_fd.close()
# Remove tmpfile.tar
subprocess.call(['rm',
os.path.join(datapath, 'tmpfile.tar')])
def _do_save_cb(self, widget):
''' Callback for save project. '''
self.tw.save_file(self._ta_file)
def _do_save_as_cb(self, widget):
''' Callback for save-as project. '''
self._save_as()
def autosave(self):
''' Autosave is called each type the run button is pressed '''
temp_load_save_folder = self.tw.load_save_folder
temp_save_folder = self.tw.save_folder
self.tw.load_save_folder = self._autosavedirname
self.tw.save_folder = self._autosavedirname
self.tw.save_file(file_name=os.path.join(
self._autosavedirname, 'autosave.tb'))
self.tw.save_folder = temp_save_folder
self.tw.load_save_folder = temp_load_save_folder
def _save_as(self):
''' Save as is called from callback and quit '''
self.tw.save_file_name = self._ta_file
self.tw.save_file()
def _save_changes(self):
''' Save changes to current project '''
self.tw.save_file_name = self._ta_file
self.tw.save_file(self.tw._loaded_project)
def _do_save_picture_cb(self, widget):
''' Callback for save canvas. '''
self.tw.save_as_image()
def _do_save_svg_cb(self, widget):
''' Callback for save canvas as SVG. '''
self.tw.save_as_image(svg=True)
def _do_save_as_icon_cb(self, widget):
''' Callback for save canvas. '''
self.tw.write_svg_operation()
self.tw.save_as_icon()
def _do_save_as_odp_cb(self, widget):
''' Callback for save canvas. '''
self.tw.save_as_odp()
def _do_save_logo_cb(self, widget):
''' Callback for save project to Logo. '''
logocode = save_logo(self.tw)
if len(logocode) == 0:
return
save_type = '.lg'
self.tw.load_save_folder = self._get_execution_dir()
filename, self.tw.load_save_folder = get_save_name(
save_type, self.tw.load_save_folder, 'logosession')
if isinstance(filename, unicode):
filename = filename.encode('utf-8')
if filename is not None:
f = file(filename, 'w')
f.write(logocode)
f.close()
def _do_save_python_cb(self, widget):
''' Callback for saving the project as Python code. '''
# catch PyExportError and display a user-friendly message instead
try:
pythoncode = save_python(self.tw)
except PyExportError as pyee:
if pyee.block is not None:
pyee.block.highlight()
self.tw.showlabel('status', str(pyee))
print pyee
return
if not pythoncode:
return
# use name of TA project if it has been saved already
default_name = self.tw.save_file_name
if default_name is None:
default_name = _("myproject")
elif default_name.endswith(".ta") or default_name.endswith(".tb"):
default_name = default_name[:-3]
save_type = '.py'
self.tw.load_save_folder = self._get_execution_dir()
filename, self.tw.load_save_folder = get_save_name(
save_type, self.tw.load_save_folder, default_name)
if isinstance(filename, unicode):
filename = filename.encode('utf-8')
if filename is not None:
f = file(filename, 'w')
f.write(pythoncode)
f.close()
def _do_resize_cb(self, widget, factor):
''' Callback to resize blocks. '''
if factor == -1:
self.tw.block_scale = 2.0
else:
self.tw.block_scale *= factor
self.tw.resize_blocks()
def _do_cartesian_cb(self, button):
''' Callback to display/hide Cartesian coordinate overlay. '''
self.tw.set_cartesian(True)
def _do_polar_cb(self, button):
''' Callback to display/hide Polar coordinate overlay. '''
self.tw.set_polar(True)
def _do_rescale_cb(self, button):
''' Callback to rescale coordinate space. '''
if self._setting_gconf_overrides:
return
if self.tw.coord_scale == 1:
self.tw.coord_scale = self.tw.height / 40
self.tw.update_overlay_position()
if self.tw.cartesian is True:
self.tw.overlay_shapes['Cartesian_labeled'].hide()
self.tw.overlay_shapes['Cartesian'].set_layer(OVERLAY_LAYER)
default_values['forward'] = [10]
default_values['back'] = [10]
default_values['arc'] = [90, 10]
default_values['setpensize'] = [1]
self.tw.turtles.get_active_turtle().set_pen_size(1)
else:
self.tw.coord_scale = 1
if self.tw.cartesian is True:
self.tw.overlay_shapes['Cartesian'].hide()
self.tw.overlay_shapes['Cartesian_labeled'].set_layer(
OVERLAY_LAYER)
default_values['forward'] = [100]
default_values['back'] = [100]
default_values['arc'] = [90, 100]
default_values['setpensize'] = [5]
self.tw.turtles.get_active_turtle().set_pen_size(5)
if hasattr(self, 'client'):
self.client.set_int(self._COORDINATE_SCALE,
int(self.tw.coord_scale))
self.tw.recalculate_constants()
def _do_toggle_hover_help_cb(self, button):
''' Toggle hover help on/off '''
self.tw.no_help = not(button.get_active())
if self.tw.no_help:
self._do_hover_help_off_cb()
else:
self._do_hover_help_on_cb()
def _do_toggle_plugin_cb(self, button):
name = button.get_label()
path_gconf = self._PLUGINS_PATH + name
if button.get_active():
#path = self.tw.turtleart_plugin_list[name]
#self.tw.init_plugin(name, path)
#instance = self.tw._get_plugin_instance(name)
#instance.setup()
self.client.set_int(path_gconf, 1)
l = _('Please restart %s in order to use the plugin.') % self.name
else:
#instance = self.tw._get_plugin_instance(name)
#instance.quit()
self.client.set_int(path_gconf, 0)
l = _('Please restart %s in order to unload the plugin.') % self.name
self.tw.showlabel('status', l)
def _do_hover_help_on_cb(self):
''' Turn hover help on '''
if hasattr(self, 'client'):
self.client.set_int(self._HOVER_HELP, 0)
def _do_hover_help_off_cb(self):
''' Turn hover help off '''
self.tw.last_label = None
if self.tw.status_spr is not None:
self.tw.status_spr.hide()
if hasattr(self, 'client'):
self.client.set_int(self._HOVER_HELP, 1)
def _do_palette_cb(self, widget):
''' Callback to show/hide palette of blocks. '''
self.tw.show_palette(self.current_palette)
self.current_palette += 1
if self.current_palette == len(self.tw.palettes):
self.current_palette = 0
def _do_hide_palette_cb(self, widget):
''' Hide the palette of blocks. '''
self.tw.hide_palette()
def _do_hideshow_cb(self, widget):
''' Hide/show the blocks. '''
self.tw.hideshow_button()
def _do_eraser_cb(self, widget):
''' Callback for eraser button. '''
self.tw.eraser_button()
return
def _do_run_cb(self, widget=None):
''' Callback for run button (rabbit). '''
self.tw.lc.trace = 0
self.tw.hideblocks()
self.tw.display_coordinates(clear=True)
self.tw.toolbar_shapes['stopiton'].set_layer(TAB_LAYER)
self.tw.run_button(0, running_from_button_push=True)
return
def _do_step_cb(self, widget):
''' Callback for step button (turtle). '''
self.tw.lc.trace = 1
self.tw.run_button(3, running_from_button_push=True)
return
def _do_trace_cb(self, widget):
''' Callback for debug button (bug). '''
self.tw.lc.trace = 1
self.tw.run_button(9, running_from_button_push=True)
return
def _do_stop_cb(self, widget):
''' Callback for stop button. '''
if self.tw.running_blocks:
self.tw.toolbar_shapes['stopiton'].hide()
if self.tw.hide:
self.tw.showblocks()
self.tw.stop_button()
self.tw.display_coordinates()
def _do_save_macro_cb(self, widget):
''' Callback for save stack button. '''
self.tw.copying_blocks = False
self.tw.deleting_blocks = False
if self.tw.saving_blocks:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
self.tw.saving_blocks = False
else:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND1))
self.tw.saving_blocks = True
def _do_delete_macro_cb(self, widget):
''' Callback for delete stack button. '''
self.tw.copying_blocks = False
self.tw.saving_blocks = False
if self.tw.deleting_blocks:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
self.tw.deleting_blocks = False
else:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND1))
self.tw.deleting_blocks = True
def _do_copy_cb(self, button):
''' Callback for copy button. '''
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
if self.tw.copying_blocks:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
self.tw.copying_blocks = False
else:
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND1))
self.tw.copying_blocks = True
def _do_paste_cb(self, button):
''' Callback for paste button. '''
self.tw.copying_blocks = False
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
clipboard = gtk.Clipboard()
text = clipboard.wait_for_text()
if text is not None:
if self.tw.selected_blk is not None and \
self.tw.selected_blk.name == 'string' and \
text[0:2] != '[[': # Don't paste block data into a string
self.tw.paste_text_in_block_label(text)
self.tw.selected_blk.resize()
else:
self.tw.process_data(data_from_string(text),
self.tw.paste_offset)
self.tw.paste_offset += PASTE_OFFSET
def _do_about_cb(self, widget):
about = gtk.AboutDialog()
about.set_program_name(_(self.name))
about.set_version(self.version)
about.set_comments(_(self.summary))
about.set_website(self.website)
about.set_logo(
gtk.gdk.pixbuf_new_from_file(
'activity/' + self.icon_name + '.svg'))
about.run()
about.destroy()
def _window_event(self, event, data):
''' Callback for resize event. '''
data_file = open('.turtleartrc', 'w')
data_file.write(str(data.x) + '\n')
data_file.write(str(data.y) + '\n')
data_file.write(str(data.width) + '\n')
data_file.write(str(data.height) + '\n')
def nick_changed(self, nick):
''' TODO: Rename default turtle in dictionary '''
pass
def color_changed(self, colors):
''' Reskin turtle with collaboration colors '''
turtle = self.tw.turtles.get_turtle(self.tw.default_turtle_name)
try:
turtle.colors = colors.split(',')
except:
turtle.colors = DEFAULT_TURTLE_COLORS
turtle.custom_shapes = True # Force regeneration of shapes
turtle.reset_shapes()
turtle.show()
def _get_execution_dir(self):
''' From whence is the program being executed? '''
dirname = os.path.dirname(__file__)
if dirname == '':
if os.path.exists(os.path.join('~', 'Activities',
'TurtleArt.activity')):
return os.path.join('~', 'Activities', 'TurtleArt.activity')
elif os.path.exists(self._INSTALL_PATH):
return self._INSTALL_PATH
elif os.path.exists(self._ALTERNATIVE_INSTALL_PATH):
return self._ALTERNATIVE_INSTALL_PATH
else:
return os.path.abspath('.')
else:
return os.path.abspath(dirname)
def restore_state(self):
''' Anything that needs restoring after a clear screen can go here '''
pass
def hide_store(self, widget=None):
if self._sample_window is not None:
self._sample_box.hide()
def _create_store(self, widget=None):
if self._sample_window is None:
self._sample_box = gtk.EventBox()
self._sample_window = gtk.ScrolledWindow()
self._sample_window.set_policy(gtk.POLICY_NEVER,
gtk.POLICY_AUTOMATIC)
width = gtk.gdk.screen_width() / 2
height = gtk.gdk.screen_height() / 2
self._sample_window.set_size_request(width, height)
self._sample_window.show()
store = gtk.ListStore(gtk.gdk.Pixbuf, str)
icon_view = gtk.IconView()
icon_view.set_model(store)
icon_view.set_selection_mode(gtk.SELECTION_SINGLE)
icon_view.connect('selection-changed', self._sample_selected,
store)
icon_view.set_pixbuf_column(0)
icon_view.grab_focus()
self._sample_window.add_with_viewport(icon_view)
icon_view.show()
self._fill_samples_list(store)
width = gtk.gdk.screen_width() / 4
height = gtk.gdk.screen_height() / 4
self._sample_box.add(self._sample_window)
self.fixed.put(self._sample_box, width, height)
self._sample_window.show()
self._sample_box.show()
def _get_selected_path(self, widget, store):
try:
iter_ = store.get_iter(widget.get_selected_items()[0])
image_path = store.get(iter_, 1)[0]
return image_path, iter_
except:
return None
def _sample_selected(self, widget, store):
selected = self._get_selected_path(widget, store)
if selected is None:
self._selected_sample = None
self._sample_window.hide()
return
image_path, _iter = selected
iter_ = store.get_iter(widget.get_selected_items()[0])
image_path = store.get(iter_, 1)[0]
self._selected_sample = image_path
self._sample_window.hide()
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.WATCH))
gobject.idle_add(self._sample_loader)
def _sample_loader(self):
# Convert from thumbnail path to sample path
basename = os.path.basename(self._selected_sample)[:-4]
for suffix in ['.ta', '.tb']:
file_path = os.path.join(self._execdirname,
'samples', basename + suffix)
if os.path.exists(file_path):
self.tw.load_files(file_path)
break
self.tw.load_save_folder = os.path.join(self._get_execution_dir(),
'samples')
self.win.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.LEFT_PTR))
def _fill_samples_list(self, store):
'''
Append images from the artwork_paths to the store.
'''
for filepath in self._scan_for_samples():
pixbuf = None
pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(
filepath, 100, 100)
store.append([pixbuf, filepath])
def _scan_for_samples(self):
samples = sorted(
glob.glob(
os.path.join(
self._get_execution_dir(),
'samples',
'thumbnails',
'*.png')))
return samples
class TurtleMain():
''' Launch Turtle Art in GNOME (from outside of Sugar). '''
_INSTALL_PATH = '/usr/share/sugar/activities/TurtleArt.activity'
_ALTERNATIVE_INSTALL_PATH = \
'/usr/local/share/sugar/activities/TurtleArt.activity'
_ICON_SUBPATH = 'images/turtle.png'
_GNOME_PLUGIN_SUBPATH = 'gnome_plugins'
_HOVER_HELP = 'hover-help'
_COORDINATE_SCALE = 'coordinate-scale'
_GIO_SETTINGS = 'org.laptop.TurtleArtActivity'
def __init__(self):
self._gio_settings_overrides = False
self._abspath = os.path.abspath('.')
self._execdirname = self._get_execution_dir()
if self._execdirname is not None:
os.chdir(self._execdirname)
file_activity_info = configparser.ConfigParser()
activity_info_path = os.path.abspath('./activity/activity.info')
file_activity_info.read(activity_info_path)
bundle_id = file_activity_info.get('Activity', 'bundle_id')
self.version = file_activity_info.get('Activity', 'activity_version')
self.name = file_activity_info.get('Activity', 'name')
self.summary = file_activity_info.get('Activity', 'summary')
self.website = file_activity_info.get('Activity', 'website')
self.icon_name = file_activity_info.get('Activity', 'icon')
path = os.path.abspath('./locale/')
gettext.bindtextdomain(bundle_id, path)
gettext.textdomain(bundle_id)
global _
_ = gettext.gettext
self._HELP_MSG = 'turtleflags.py: ' + _('usage is') + '''
\tturtleblocks.py
\tturtleblocks.py project.tb
\tturtleblocks.py --output_png project.tb
\tturtleblocks.py -o project
\tturtleblocks.py --run project.tb
\tturtleblocks.py -r project'''
self._init_vars()
self._parse_command_line()
self._ensure_sugar_paths()
self._gnome_plugins = []
self._selected_sample = None
self._sample_window = None
self._custom_filepath = None
if self._output_png:
# Outputing to file, so no need for a canvas
self.canvas = None
self._build_window(interactive=False)
self._draw_and_quit()
else:
self._read_initial_pos()
self._init_gnome_plugins()
self._get_gio_settings()
self._setup_gtk()
self._build_window()
self._run_gnome_plugins()
self._start_gtk()
def _get_local_settings(self, activity_root):
""" return an activity-specific Gio.Settings
"""
# create schemas directory if missing
path = os.path.join(get_path(None, 'data'), 'schemas')
if not os.access(path, os.F_OK):
os.makedirs(path)
# create compiled schema file if missing
compiled = os.path.join(path, 'gschemas.compiled')
if not os.access(compiled, os.R_OK):
src = '%s.gschema.xml' % self._GIO_SETTINGS
read_file = open(os.path.join(activity_root, src), 'r')
lines = read_file.readlines()
write_file = open(os.path.join(path, src), 'w')
write_file.writelines(lines)
write_file.close()
read_file.close()
os.system('glib-compile-schemas %s' % path)
os.remove(os.path.join(path, src))
# create a local Gio.Settings based on the compiled schema
source = Gio.SettingsSchemaSource.new_from_directory(path, None, True)
schema = source.lookup(self._GIO_SETTINGS, True)
_settings = Gio.Settings.new_full(schema, None, None)
return _settings
def _get_gio_settings(self):
self._settings = self._get_local_settings(self._execdirname)
def get_config_home(self):
return CONFIG_HOME
def _get_gnome_plugin_home(self):
''' Use plugin directory associated with execution path. '''
if os.path.exists(os.path.join(self._execdirname,
self._GNOME_PLUGIN_SUBPATH)):
return os.path.join(self._execdirname, self._GNOME_PLUGIN_SUBPATH)
else:
return None
def _get_plugin_candidates(self, path):
''' Look for plugin files in plugin directory. '''
plugin_files = []
if path is not None:
candidates = os.listdir(path)
for c in candidates:
if c[-10:] == '_plugin.py' and c[0] != '#' and c[0] != '.':
plugin_files.append(c.split('.')[0])
return plugin_files
def _init_gnome_plugins(self):
''' Try launching any plugins we may have found. '''
for p in self._get_plugin_candidates(self._get_gnome_plugin_home()):
P = p.capitalize()
f = "def f(self): from gnome_plugins.%s import %s; \
return %s(self)" % (p, P, P)
plugin = {}
try:
exec(f, globals(), plugin)
self._gnome_plugins.append(list(plugin.values())[0](self))
except ImportError as e:
print('failed to import %s: %s' % (P, str(e)))
def _run_gnome_plugins(self):
''' Tell the plugin about the TurtleWindow instance. '''
for p in self._gnome_plugins:
p.set_tw(self.tw)
def _mkdir_p(self, path):
'''Create a directory in a fashion similar to `mkdir -p`.'''
try:
os.makedirs(path)
except OSError as exc:
if exc.errno == errno.EEXIST:
pass
else:
raise
def _makepath(self, path):
''' Make a path if it doesn't previously exist '''
from os import makedirs
from os.path import normpath, dirname, exists
dpath = normpath(dirname(path))
if not exists(dpath):
makedirs(dpath)
def _start_gtk(self):
''' Get a main window set up. '''
self.win.connect('configure_event', self.tw.update_overlay_position)
self.tw.parent = self.win
self.init_complete = True
if self._ta_file is None:
self.tw.load_start()
else:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.WATCH))
GLib.idle_add(self._project_loader, self._ta_file)
self._set_gio_settings_overrides()
Gtk.main()
def _project_loader(self, file_name):
self.tw.load_start(self._ta_file)
self.tw.lc.trace = 0
if self._run_on_launch:
self._do_run_cb()
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.LEFT_PTR))
def _draw_and_quit(self):
''' Non-interactive mode: run the project, save it to a file
and quit. '''
self.tw.load_start(self._ta_file)
self.tw.lc.trace = 0
self.tw.run_button(0)
self.tw.save_as_image(self._ta_file)
def _build_window(self, interactive=True):
''' Initialize the TurtleWindow instance. '''
if interactive:
win = self.canvas.get_window()
cr = win.cairo_create()
surface = cr.get_target()
else:
img_surface = cairo.ImageSurface(cairo.FORMAT_RGB24,
1024, 768)
cr = cairo.Context(img_surface)
surface = cr.get_target()
self.turtle_canvas = surface.create_similar(
cairo.CONTENT_COLOR,
# max(1024, gtk.gdk.screen_width() * 2),
# max(768, gtk.gdk.screen_height() * 2))
Gdk.Screen.width() * 2,
Gdk.Screen.height() * 2)
self.tw = TurtleArtWindow(self.canvas, self._execdirname,
turtle_canvas=self.turtle_canvas,
activity=self, running_sugar=False)
self.tw.save_folder = self._abspath # os.path.expanduser('~')
if hasattr(self, '_settings'):
if self._settings.get_int(self._HOVER_HELP) == 1:
self.hover.set_active(False)
self._do_hover_help_off_cb(None)
if not self._settings.get_int(self._COORDINATE_SCALE) in [0, 1]:
self.tw.coord_scale = 1
else:
self.tw.coord_scale = 0
def _set_gio_settings_overrides(self):
if self.tw.coord_scale == 0:
self.tw.coord_scale = 1
else:
self._do_rescale_cb(None)
if self.tw.coord_scale != 1:
self._gio_setting_overrides = True
self.coords.set_active(True)
self._gio_setting_overrides = False
def _init_vars(self):
''' If we are invoked to start a project from Gnome, we should make
sure our current directory is TA's source dir. '''
self._ta_file = None
self._output_png = False
self._run_on_launch = False
self.current_palette = 0
self.scale = 2.0
self.tw = None
self.init_complete = False
def _parse_command_line(self):
''' Try to make sense of the command-line arguments. '''
try:
opts, args = getopt.getopt(argv[1:], 'hor',
['help', 'output_png', 'run'])
except getopt.GetoptError as err:
print(err.msg)
print(self._HELP_MSG)
sys.exit(2)
self._run_on_launch = False
for o, a in opts:
if o in ('-h', '--help'):
print(self._HELP_MSG)
sys.exit()
if o in ('-o', '--output_png'):
self._output_png = True
elif o in ('-r', '--run'):
self._run_on_launch = True
else:
assert False, _('No option action:') + ' ' + o
if args:
self._ta_file = args[0]
if len(args) > 1 or self._output_png and self._ta_file is None:
print(self._HELP_MSG)
sys.exit()
if self._ta_file is not None:
if not self._ta_file.endswith(SUFFIX):
self._ta_file += '.tb'
if not os.path.exists(self._ta_file):
self._ta_file = os.path.join(self._abspath, self._ta_file)
if not os.path.exists(self._ta_file):
assert False, ('%s: %s' %
(self._ta_file, _('File not found')))
def _ensure_sugar_paths(self):
''' Make sure Sugar paths are present. '''
tapath = os.path.join(os.environ['HOME'], '.sugar', 'default',
'org.laptop.TurtleArtActivity')
list(map(self._makepath, (os.path.join(tapath, 'data/'),
os.path.join(tapath, 'instance/'))))
def _read_initial_pos(self):
''' Read saved configuration. '''
try:
data_file = open(os.path.join(CONFIG_HOME, 'turtleartrc'), 'r')
except IOError:
# Opening the config file failed
# We'll assume it needs to be created
try:
self._mkdir_p(CONFIG_HOME)
data_file = open(os.path.join(CONFIG_HOME, 'turtleartrc'),
'a+')
except IOError as e:
# We can't write to the configuration file, use
# a faux file that will persist for the length of
# the session.
print(_('Configuration directory not writable: %s') % (e))
data_file = io.StringIO()
data_file.write(str(50) + '\n')
data_file.write(str(50) + '\n')
data_file.write(str(800) + '\n')
data_file.write(str(550) + '\n')
data_file.seek(0)
try:
self.x = int(data_file.readline())
self.y = int(data_file.readline())
self.width = int(data_file.readline())
self.height = int(data_file.readline())
except ValueError:
self.x = 50
self.y = 50
self.width = 800
self.height = 550
def _fixed_resize_cb(self, widget=None, rect=None):
''' If a toolbar opens or closes, we need to resize the vbox
holding out scrolling window. '''
self.vbox.set_size_request(rect[2], rect[3])
self.menu_height = self.menu_bar.size_request()[1]
def _setup_gtk(self):
''' Set up a scrolled window in which to run Turtle Blocks. '''
win = Gtk.Window(Gtk.WindowType.TOPLEVEL)
win.set_default_size(self.width, self.height)
win.move(self.x, self.y)
win.maximize()
win.set_title('%s %s' % (self.name, str(self.version)))
if os.path.exists(os.path.join(self._execdirname, self._ICON_SUBPATH)):
win.set_icon_from_file(os.path.join(self._execdirname,
self._ICON_SUBPATH))
win.show()
win.connect('delete_event', self._quit_ta)
''' Create a scrolled window to contain the turtle canvas. We
add a Fixed container in order to position text Entry widgets
on top of string and number blocks.'''
self.fixed = Gtk.Fixed()
self.fixed.connect('size-allocate', self._fixed_resize_cb)
width = Gdk.Screen.width() - 80
height = Gdk.Screen.height() - 80
self.fixed.set_size_request(width, height)
self.vbox = Gtk.VBox(False, 0)
self.vbox.show()
self.menu_bar = self._get_menu_bar()
self.vbox.pack_start(self.menu_bar, False, False, 2)
self.menu_bar.show()
self.menu_height = self.menu_bar.size_request()[1]
self.sw = Gtk.ScrolledWindow()
self.sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
self.sw.show()
canvas = Gtk.DrawingArea()
width = Gdk.Screen.width() * 2
height = Gdk.Screen.height() * 2
canvas.set_size_request(width, height)
self.sw.add_with_viewport(canvas)
canvas.show()
self.vbox.pack_end(self.sw, True, True)
self.fixed.put(self.vbox, 0, 0)
self.fixed.show()
win.add(self.fixed)
win.show_all()
self.win = win
self.canvas = canvas
def _get_menu_bar(self):
''' Instead of Sugar toolbars, use GNOME menus. '''
menu = Gtk.Menu()
menubuilder.make_menu_item(menu, _('New'), self._do_new_cb)
menubuilder.make_menu_item(menu, _('Show sample projects'),
self._create_store)
menubuilder.make_menu_item(menu, _('Open'), self._do_open_cb)
menubuilder.make_menu_item(menu, _('Load project'), self._do_load_cb)
menubuilder.make_menu_item(menu, _('Save'), self._do_save_cb)
menubuilder.make_menu_item(menu, _('Save as'), self._do_save_as_cb)
menubuilder.make_menu_item(menu, _('Save as image'),
self._do_save_picture_cb)
menubuilder.make_menu_item(menu, _('Save as Logo'),
self._do_save_logo_cb)
menubuilder.make_menu_item(menu, _('Quit'), self._quit_ta)
activity_menu = menubuilder.make_sub_menu(menu, _('File'))
menu = Gtk.Menu()
menubuilder.make_menu_item(menu, _('Cartesian coordinates'),
self._do_cartesian_cb)
menubuilder.make_menu_item(menu, _('Polar coordinates'),
self._do_polar_cb)
self.coords = menubuilder.make_checkmenu_item(
menu, _('Rescale coordinates'),
self._do_rescale_cb, status=False)
menubuilder.make_menu_item(menu, _('Grow blocks'),
self._do_resize_cb, 1.5)
menubuilder.make_menu_item(menu, _('Shrink blocks'),
self._do_resize_cb, 0.667)
menubuilder.make_menu_item(menu, _('Reset block size'),
self._do_resize_cb, -1)
self.hover = menubuilder.make_checkmenu_item(
menu, _('Turn on hover help'),
self._do_toggle_hover_help_cb, status=True)
view_menu = menubuilder.make_sub_menu(menu, _('View'))
menu = Gtk.Menu()
menubuilder.make_menu_item(menu, _('Copy'), self._do_copy_cb)
menubuilder.make_menu_item(menu, _('Paste'), self._do_paste_cb)
menubuilder.make_menu_item(menu, _('Save stack'),
self._do_save_macro_cb)
menubuilder.make_menu_item(menu, _('Delete stack'),
self._do_delete_macro_cb)
edit_menu = menubuilder.make_sub_menu(menu, _('Edit'))
menu = Gtk.Menu()
menubuilder.make_menu_item(menu, _('Show palette'),
self._do_palette_cb)
menubuilder.make_menu_item(menu, _('Hide palette'),
self._do_hide_palette_cb)
menubuilder.make_menu_item(menu, _('Show/hide blocks'),
self._do_hideshow_cb)
tool_menu = menubuilder.make_sub_menu(menu, _('Tools'))
menu = Gtk.Menu()
menubuilder.make_menu_item(menu, _('Clean'), self._do_eraser_cb)
menubuilder.make_menu_item(menu, _('Run'), self._do_run_cb)
menubuilder.make_menu_item(menu, _('Step'), self._do_step_cb)
menubuilder.make_menu_item(menu, _('Debug'), self._do_trace_cb)
menubuilder.make_menu_item(menu, _('Stop'), self._do_stop_cb)
turtle_menu = menubuilder.make_sub_menu(menu, _('Turtle'))
menu = Gtk.Menu()
menubuilder.make_menu_item(menu, _('About...'), self._do_about_cb)
help_menu = menubuilder.make_sub_menu(menu, _('Help'))
menu_bar = Gtk.MenuBar()
menu_bar.append(activity_menu)
menu_bar.append(edit_menu)
menu_bar.append(view_menu)
menu_bar.append(tool_menu)
menu_bar.append(turtle_menu)
# Add menus for plugins
for p in self._gnome_plugins:
menu_item = p.get_menu()
if menu_item is not None:
menu_bar.append(menu_item)
menu_bar.append(help_menu)
return menu_bar
def _quit_ta(self, widget=None, e=None):
''' Save changes on exit '''
project_empty = self.tw.is_project_empty()
if not project_empty:
if self.tw.is_new_project():
self._show_save_dialog(True)
else:
if self.tw.project_has_changed():
self._show_save_dialog(False)
for plugin in self.tw.turtleart_plugins:
if hasattr(plugin, 'quit'):
plugin.quit()
Gtk.main_quit()
exit()
def _show_save_dialog(self, new_project=True):
''' Dialog for save project '''
dlg = Gtk.MessageDialog(parent=None, type=Gtk.MessageType.INFO,
buttons=Gtk.ButtonsType.YES_NO,
message_format=_('You have unsaved work. \
Would you like to save before quitting?'))
dlg.set_title(_('Save project?'))
dlg.set_property('skip-taskbar-hint', False)
resp = dlg.run()
dlg.destroy()
if resp == Gtk.ResponseType.YES:
if new_project:
self._save_as()
else:
self._save_changes()
def _do_new_cb(self, widget):
''' Callback for new project. '''
self.tw.new_project()
self.tw.load_start()
def _do_open_cb(self, widget):
''' Callback for open project. '''
self.tw.load_file_from_chooser(True)
def _do_load_cb(self, widget):
''' Callback for load project (add to current project). '''
self.tw.load_file_from_chooser(False)
def _do_save_cb(self, widget):
''' Callback for save project. '''
self.tw.save_file(self._ta_file)
def _do_save_as_cb(self, widget):
''' Callback for save-as project. '''
self._save_as()
def _save_as(self):
''' Save as is called from callback and quit '''
self.tw.save_file_name = self._ta_file
self.tw.save_file()
def _save_changes(self):
''' Save changes to current project '''
self.tw.save_file_name = self._ta_file
self.tw.save_file(self.tw._loaded_project)
def _do_save_picture_cb(self, widget):
''' Callback for save canvas. '''
self.tw.save_as_image()
def _do_save_logo_cb(self, widget):
''' Callback for save project to Logo. '''
logocode = save_logo(self.tw)
if len(logocode) == 0:
return
save_type = '.lg'
filename, self.tw.load_save_folder = get_save_name(
save_type, self.tw.load_save_folder, 'logosession')
if isinstance(filename, str):
filename = filename.encode('utf-8')
if filename is not None:
f = open(filename, 'w')
f.write(logocode)
f.close()
def _do_resize_cb(self, widget, factor):
''' Callback to resize blocks. '''
if factor == -1:
self.tw.block_scale = 2.0
else:
self.tw.block_scale *= factor
self.tw.resize_blocks()
def _do_cartesian_cb(self, button):
''' Callback to display/hide Cartesian coordinate overlay. '''
self.tw.set_cartesian(True)
def _do_polar_cb(self, button):
''' Callback to display/hide Polar coordinate overlay. '''
self.tw.set_polar(True)
def _do_rescale_cb(self, button):
''' Callback to rescale coordinate space. '''
if self._gio_settings_overrides:
return
if self.tw.coord_scale == 1:
self.tw.coord_scale = self.tw.height / 40
self.tw.update_overlay_position()
if self.tw.cartesian is True:
self.tw.overlay_shapes['Cartesian_labeled'].hide()
self.tw.overlay_shapes['Cartesian'].set_layer(OVERLAY_LAYER)
default_values['forward'] = [10]
default_values['back'] = [10]
default_values['arc'] = [90, 10]
default_values['setpensize'] = [1]
self.tw.turtles.get_active_turtle().set_pen_size(1)
else:
self.tw.coord_scale = 1
if self.tw.cartesian is True:
self.tw.overlay_shapes['Cartesian'].hide()
self.tw.overlay_shapes['Cartesian_labeled'].set_layer(
OVERLAY_LAYER)
default_values['forward'] = [100]
default_values['back'] = [100]
default_values['arc'] = [90, 100]
default_values['setpensize'] = [5]
self.tw.turtles.get_active_turtle().set_pen_size(5)
if hasattr(self, '_settings'):
self._settings.set_int(self._COORDINATE_SCALE,
int(self.tw.coord_scale))
def _do_toggle_hover_help_cb(self, button):
''' Toggle hover help on/off '''
self.tw.no_help = not self.tw.no_help
if self.tw.no_help:
self._do_hover_help_off_cb(None)
else:
self._do_hover_help_on_cb(None)
def _do_hover_help_on_cb(self, button):
''' Turn hover help on '''
self.tw.no_help = False
self.hover.set_active(True)
if hasattr(self, '_settings'):
self._settings.set_int(self._HOVER_HELP, 0)
def _do_hover_help_off_cb(self, button):
''' Turn hover help off '''
if self.tw.no_help: # Debounce
return
self.tw.no_help = True
self.tw.last_label = None
if self.tw.status_spr is not None:
self.tw.status_spr.hide()
self.hover.set_active(False)
if hasattr(self, '_settings'):
self._settings.set_int(self._HOVER_HELP, 1)
def _do_palette_cb(self, widget):
''' Callback to show/hide palette of blocks. '''
self.tw.show_palette(self.current_palette)
self.current_palette += 1
if self.current_palette == len(self.tw.palettes):
self.current_palette = 0
def _do_hide_palette_cb(self, widget):
''' Hide the palette of blocks. '''
self.tw.hide_palette()
def _do_hideshow_cb(self, widget):
''' Hide/show the blocks. '''
self.tw.hideshow_button()
def _do_eraser_cb(self, widget):
''' Callback for eraser button. '''
self.tw.eraser_button()
self.restore_state()
return
def _do_run_cb(self, widget=None):
''' Callback for run button (rabbit). '''
self.tw.lc.trace = 0
self.tw.hideblocks()
self.tw.display_coordinates(clear=True)
self.tw.toolbar_shapes['stopiton'].set_layer(TAB_LAYER)
self.tw.run_button(0, running_from_button_push=True)
return
def _do_step_cb(self, widget):
''' Callback for step button (turtle). '''
self.tw.lc.trace = 1
self.tw.run_button(3, running_from_button_push=True)
return
def _do_trace_cb(self, widget):
''' Callback for debug button (bug). '''
self.tw.lc.trace = 1
self.tw.run_button(9, running_from_button_push=True)
return
def _do_stop_cb(self, widget):
''' Callback for stop button. '''
if self.tw.running_blocks:
self.tw.toolbar_shapes['stopiton'].hide()
if self.tw.hide:
self.tw.showblocks()
self.tw.stop_button()
self.tw.display_coordinates()
def _do_save_macro_cb(self, widget):
''' Callback for save stack button. '''
self.tw.copying_blocks = False
self.tw.deleting_blocks = False
if self.tw.saving_blocks:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.LEFT_PTR))
self.tw.saving_blocks = False
else:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.HAND1))
self.tw.saving_blocks = True
def _do_delete_macro_cb(self, widget):
''' Callback for delete stack button. '''
self.tw.copying_blocks = False
self.tw.saving_blocks = False
if self.tw.deleting_blocks:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.LEFT_PTR))
self.tw.deleting_blocks = False
else:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.HAND1))
self.tw.deleting_blocks = True
def _do_copy_cb(self, button):
''' Callback for copy button. '''
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
if self.tw.copying_blocks:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.LEFT_PTR))
self.tw.copying_blocks = False
else:
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.HAND1))
self.tw.copying_blocks = True
def _do_paste_cb(self, button):
''' Callback for paste button. '''
self.tw.copying_blocks = False
self.tw.saving_blocks = False
self.tw.deleting_blocks = False
self.win.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.LEFT_PTR))
clipBoard = Gtk.Clipboard()
text = clipBoard.wait_for_text()
if text is not None:
if self.tw.selected_blk is not None and \
self.tw.selected_blk.name == 'string':
self.tw.text_buffer.set_text(
self.tw.text_buffer.get_text() + text)
self.tw.text_entry.set_buffer(self.tw.text_buffer)
self.tw.selected_blk.resize()
elif text[0:2] == '[[':
self.tw.process_data(data_from_string(text),
self.tw.paste_offset)
self.tw.paste_offset += 20
def _do_about_cb(self, widget):
about = Gtk.AboutDialog()
about.set_program_name(_(self.name))
about.set_version(self.version)
about.set_comments(_(self.summary))
about.set_website(self.website)
about.set_logo(
GdkPixbuf.Pixbuf.new_from_file(
'activity/' + self.icon_name + '.svg'))
about.run()
about.destroy()
def _window_event(self, event, data):
''' Callback for resize event. '''
data_file = open('.turtleartrc', 'w')
data_file.write(str(data.x) + '\n')
data_file.write(str(data.y) + '\n')
data_file.write(str(data.width) + '\n')
data_file.write(str(data.height) + '\n')
def nick_changed(self, nick):
''' TODO: Rename default turtle in dictionary '''
pass
def color_changed(self, colors):
''' Reskin turtle with collaboration colors '''
turtle = self.tw.turtles.get_turtle(self.tw.default_turtle_name)
try:
turtle.colors = colors.split(',')
except:
turtle.colors = DEFAULT_TURTLE_COLORS
turtle.custom_shapes = True # Force regeneration of shapes
turtle.reset_shapes()
turtle.show()
def _get_execution_dir(self):
''' From whence is the program being executed? '''
dirname = os.path.dirname(__file__)
if dirname == '':
if os.path.exists(os.path.join('~', 'Activities',
'TurtleArt.activity')):
return os.path.join('~', 'Activities', 'TurtleArt.activity')
elif os.path.exists(self._INSTALL_PATH):
return self._INSTALL_PATH
elif os.path.exists(self._ALTERNATIVE_INSTALL_PATH):
return self._ALTERNATIVE_INSTALL_PATH
else:
return os.path.abspath('.')
else:
return os.path.abspath(dirname)
def restore_state(self):
''' Anything that needs restoring after a clear screen can go here '''
if self._custom_filepath is None:
self._load_level()
else:
self._load_level(custom=True)
def _load_level(self, custom=False):
self.tw.canvas.clearscreen()
if custom:
self.tw.turtles.get_active_turtle().set_xy(0, 0, pendown=False)
self.tw.lc.insert_image(center=True,
filepath=self._custom_filepath,
resize=True, offset=False)
else:
self.tw.turtles.get_active_turtle().set_xy(0, 0, pendown=False)
self.tw.lc.insert_image(center=False,
filepath=self._selected_challenge,
resize=True,
offset=True)
pos = self.tw.turtles.turtle_to_screen_coordinates((0, -50))
self.tw.turtles.get_active_turtle().draw_text(
os.path.basename(self._selected_challenge)[:-4].replace(
'_', ' '),
pos[0], pos[1], 24, Gdk.Screen.width() / 2)
self.tw.turtles.get_active_turtle().set_xy(0, 0, pendown=False)
def hide_store(self, widget=None):
if self._sample_window is not None:
self._sample_box.hide()
def _create_store(self, widget=None):
if self._sample_window is None:
self._sample_box = Gtk.EventBox()
self._sample_window = Gtk.ScrolledWindow()
self._sample_window.set_policy(Gtk.PolicyType.NEVER,
Gtk.PolicyType.AUTOMATIC)
width = Gdk.Screen.width() / 2
height = Gdk.Screen.height() / 2
self._sample_window.set_size_request(width, height)
self._sample_window.show()
store = Gtk.ListStore(GdkPixbuf.Pixbuf, str)
icon_view = Gtk.IconView()
icon_view.set_model(store)
icon_view.set_selection_mode(Gtk.SelectionMode.SINGLE)
icon_view.connect('selection-changed', self._sample_selected,
store)
icon_view.set_pixbuf_column(0)
icon_view.grab_focus()
self._sample_window.add_with_viewport(icon_view)
icon_view.show()
self._fill_samples_list(store)
width = Gdk.Screen.width() / 4
height = Gdk.Screen.height() / 4
self._sample_box.add(self._sample_window)
self.fixed.put(self._sample_box, width, height)
self._sample_window.show()
self._sample_box.show()
def _get_selected_path(self, widget, store):
try:
iter_ = store.get_iter(widget.get_selected_items()[0])
image_path = store.get(iter_, 1)[0]
return image_path, iter_
except:
return None
def _sample_selected(self, widget, store):
selected = self._get_selected_path(widget, store)
if selected is None:
self._selected_sample = None
self._sample_window.hide()
return
image_path, _iter = selected
iter_ = store.get_iter(widget.get_selected_items()[0])
image_path = store.get(iter_, 1)[0]
self._selected_challenge = image_path
self._sample_window.hide()
self._load_level()
def _fill_samples_list(self, store):
'''
Append images from the artwork_paths to the store.
'''
for filepath in self._scan_for_samples():
pixbuf = None
pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_size(
filepath, 100, 100)
store.append([pixbuf, filepath])
def _scan_for_samples(self):
samples = glob.glob(os.path.join(self._get_execution_dir(),
'samples', 'thumbnails', '*.png'))
samples.sort()
return samples