diff options
Diffstat (limited to 'TurtleArt/tawindow.py')
| -rw-r--r-- | TurtleArt/tawindow.py | 247 |
1 files changed, 117 insertions, 130 deletions
diff --git a/TurtleArt/tawindow.py b/TurtleArt/tawindow.py index ad830d9..f12a753 100644 --- a/TurtleArt/tawindow.py +++ b/TurtleArt/tawindow.py @@ -1,8 +1,7 @@ # -*- coding: utf-8 -*- #Copyright (c) 2007, Playful Invention Company -#Copyright (c) 2008-10, Walter Bender -#Copyright (c) 2009-10 Raúl Gutiérrez Segalés -#Copyright (C) 2010 Emiliano Pastorino <epastorino@plan.ceibal.edu.uy> +#Copyright (c) 2008-11, Walter Bender +#Copyright (c) 2009-11 Raúl Gutiérrez Segalés #Copyright (c) 2011 Collabora Ltd. <http://www.collabora.co.uk/> #Permission is hereby granted, free of charge, to any person obtaining a copy @@ -27,7 +26,14 @@ import pygtk pygtk.require('2.0') import gtk import gobject -import gst + +try: + import gst + GST_AVAILABLE = True +except ImportError: + # Turtle Art should not fail if gst is not available + GST_AVAILABLE = False + import os import os.path import dbus @@ -60,7 +66,7 @@ from taconstants import HORIZONTAL_PALETTE, VERTICAL_PALETTE, BLOCK_SCALE, \ NUMBER_STYLE_PORCH, NUMBER_STYLE_BLOCK, \ NUMBER_STYLE_VAR_ARG, CONSTANTS, XO1, XO15, UNKNOWN, \ BASIC_STYLE_VAR_ARG -from talogo import LogoCode, stop_logo +from talogo import LogoCode from tacanvas import TurtleGraphics from tablock import Blocks, Block from taturtle import Turtles, Turtle @@ -76,18 +82,11 @@ from tautils import magnitude, get_load_name, get_save_name, data_from_file, \ dock_dx_dy, data_to_string, journal_check, chooser, \ get_hardware from tasprite_factory import SVG, svg_str_to_pixbuf, svg_from_file -from tagplay import stop_media from sprites import Sprites, Sprite -from audiograb import AudioGrab_Unknown, AudioGrab_XO1, AudioGrab_XO15 -from rfidutils import strhex2bin, strbin2dec, find_device from dbus.mainloop.glib import DBusGMainLoop -HAL_SERVICE = 'org.freedesktop.Hal' -HAL_MGR_PATH = '/org/freedesktop/Hal/Manager' -HAL_MGR_IFACE = 'org.freedesktop.Hal.Manager' -HAL_DEV_IFACE = 'org.freedesktop.Hal.Device' -REGEXP_SERUSB = '\/org\/freedesktop\/Hal\/devices\/usb_device['\ - 'a-z,A-Z,0-9,_]*serial_usb_[0-9]' +if GST_AVAILABLE: + from tagplay import stop_media import logging _logger = logging.getLogger('turtleart-activity') @@ -96,13 +95,17 @@ _logger = logging.getLogger('turtleart-activity') class TurtleArtWindow(): """ TurtleArt Window class abstraction """ timeout_tag = [0] + _INSTALL_PATH = '/usr/share/turtleart' + _ALTERNATE_INSTALL_PATH = '/usr/local/share/turtleart' + _PLUGIN_SUBPATH = 'plugins' def __init__(self, win, path, parent=None, mycolors=None, mynick=None): self._loaded_project = '' self.win = None self._sharing = False self.parent = parent - self.send_event = None # method to send events over the network + self.send_event = None # method to send events over the network + self.gst_available = GST_AVAILABLE if type(win) == gtk.DrawingArea: self.interactive_mode = True self.window = win @@ -147,7 +150,11 @@ class TurtleArtWindow(): self.mouse_x = 0 self.mouse_y = 0 - locale.setlocale(locale.LC_NUMERIC, '') + # if self.running_sugar: + try: + locale.setlocale(locale.LC_NUMERIC, '') + except locale.Error: + _logger.debug('unsupported locale') self.decimal_point = locale.localeconv()['decimal_point'] if self.decimal_point == '' or self.decimal_point is None: self.decimal_point = '.' @@ -256,95 +263,91 @@ class TurtleArtWindow(): self._setup_misc() self._show_toolbar_palette(0, False) - # setup sound/sensor grab - if self.hw in [XO1, XO15]: - PALETTES[PALETTE_NAMES.index('sensor')].append('resistance') - PALETTES[PALETTE_NAMES.index('sensor')].append('voltage') - self.audio_started = False - - self.camera_available = False - v4l2src = gst.element_factory_make('v4l2src') - if v4l2src.props.device_name is not None: - PALETTES[PALETTE_NAMES.index('sensor')].append('readcamera') - PALETTES[PALETTE_NAMES.index('sensor')].append('luminance') - PALETTES[PALETTE_NAMES.index('sensor')].append('camera') - self.camera_available = True + self._plugins = [] + self._init_plugins() self.lc = LogoCode(self) - self.saved_pictures = [] + self._setup_plugins() + self.saved_pictures = [] self.block_operation = '' - """ - The following code will initialize a USB RFID reader. Please note that - in order to make this initialization function work, it is necessary to - set the permission for the ttyUSB device to 0666. You can do this by - adding a rule to /etc/udev/rules.d - - As root (using sudo or su), copy the following text into a new file in - /etc/udev/rules.d/94-ttyUSB-rules - - KERNEL=="ttyUSB[0-9]",MODE="0666" - - You only have to do this once. - """ - - self.rfid_connected = False - self.rfid_device = find_device() - self.rfid_idn = '' - - if self.rfid_device is not None: - _logger.info("RFID device found") - self.rfid_connected = self.rfid_device.do_connect() - if self.rfid_connected: - self.rfid_device.connect("tag-read", self._tag_read_cb) - self.rfid_device.connect("disconnected", self._disconnected_cb) - - loop = DBusGMainLoop() - bus = dbus.SystemBus(mainloop=loop) - hmgr_iface = dbus.Interface(bus.get_object(HAL_SERVICE, - HAL_MGR_PATH), HAL_MGR_IFACE) - - hmgr_iface.connect_to_signal('DeviceAdded', self._device_added_cb) - - PALETTES[PALETTE_NAMES.index('sensor')].append('rfid') - - def _device_added_cb(self, path): - """ - Called from hal connection when a new device is plugged. - """ - if not self.rfid_connected: - self.rfid_device = find_device() - _logger.debug("DEVICE_ADDED: %s"%self.rfid_device) - if self.rfid_device is not None: - _logger.debug("DEVICE_ADDED: RFID device is not None!") - self.rfid_connected = self._device.do_connect() - if self.rfid_connected: - _logger.debug("DEVICE_ADDED: Connected!") - self.rfid_device.connect("tag-read", self._tag_read_cb) - self.rfid_device.connect("disconnected", self._disconnected_cb) - - def _disconnected_cb(self, device, text): - """ - Called when the device is disconnected. - """ - self.rfid_connected = False - self.rfid_device = None - - def _tag_read_cb(self, device, tagid): - """ - Callback for "tag-read" signal. Receives the read tag id. - """ - idbin = strhex2bin(tagid) - self.rfid_idn = strbin2dec(idbin[26:64]) - while self.rfid_idn.__len__() < 9: - self.rfid_idn = '0' + self.rfid_idn - print tagid, idbin, self.rfid_idn - - def new_buffer(self, buf): - """ Append a new buffer to the ringbuffer """ - self.lc.ringbuffer.append(buf) - return True + def _get_plugin_home(self): + """ Look in current directory first, then usual places """ + path = os.path.join(os.getcwd(), self._PLUGIN_SUBPATH) + if os.path.exists(path): + return path + path = os.path.expanduser(os.path.join('~', 'Activities', + 'TurtleBlocks.activity', + self._PLUGIN_SUBPATH)) + if os.path.exists(path): + return path + path = os.path.expanduser(os.path.join('~', 'Activities', + 'TurtleArt.activity', + self._PLUGIN_SUBPATH)) + if os.path.exists(path): + return path + path = os.path.join(self._INSTALL_PATH, self._PLUGIN_SUBPATH) + if os.path.exists(path): + return path + path = os.path.join(self._ALTERNATE_INSTALL_PATH, + self._PLUGIN_SUBPATH) + if os.path.exists(path): + return path + 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_plugins(self): + """ Try importing plugin files from the plugin directory. """ + for pluginfile in self._get_plugin_candidates(self._get_plugin_home()): + pluginclass = pluginfile.capitalize() + f = "def f(self): from plugins.%s import %s; return %s(self)" \ + % (pluginfile, pluginclass, pluginclass) + plugins = {} + try: + exec f in globals(), plugins + self._plugins.append(plugins.values()[0](self)) + except ImportError: + print 'failed to import %s' % (pluginclass) + + def _setup_plugins(self): + """ Initial setup -- call just once. """ + for plugin in self._plugins: + plugin.setup() + + def _start_plugins(self): + """ Start is called everytime we execute blocks. """ + for plugin in self._plugins: + plugin.start() + + def _stop_plugins(self): + """ Stop is called whenever we stop execution. """ + for plugin in self._plugins: + plugin.stop() + + def background_plugins(self): + """ Background is called when we are pushed to the background. """ + for plugin in self._plugins: + plugin.goto_background() + + def foreground_plugins(self): + """ Foreground is called when we are return from the background. """ + for plugin in self._plugins: + plugin.return_to_foreground() + + def _quit_plugins(self): + """ Quit is called upon program exit. """ + for plugin in self._plugins: + plugin.quit() def _setup_events(self): """ Register the events we listen to. """ @@ -420,29 +423,13 @@ class TurtleArtWindow(): self.lc.prim_clear() self.display_coordinates() - def _start_audiograb(self): - """ Start grabbing audio if there is an audio block in use """ - if len(self.block_list.get_similar_blocks('block', - ['volume', 'sound', 'pitch', 'resistance', 'voltage'])) > 0: - if self.audio_started: - self.audiograb.resume_grabbing() - else: - if self.hw == XO15: - self.audiograb = AudioGrab_XO15(self.new_buffer, self) - elif self.hw == XO1: - self.audiograb = AudioGrab_XO1(self.new_buffer, self) - else: - self.audiograb = AudioGrab_Unknown(self.new_buffer, self) - self.audiograb.start_grabbing() - self.audio_started = True - def run_button(self, time): """ Run turtle! """ if self.running_sugar: self.activity.recenter() if self.interactive_mode: - self._start_audiograb() + self._start_plugins() # Look for a 'start' block for blk in self.just_blocks(): @@ -462,9 +449,8 @@ class TurtleArtWindow(): def stop_button(self): """ Stop button """ - stop_logo(self) - if self.audio_started: - self.audiograb.pause_grabbing() + self.lc.stop_logo() + self._stop_plugins() def set_userdefined(self, blk=None): """ Change icon for user-defined blocks after loading Python code. """ @@ -1585,6 +1571,7 @@ class TurtleArtWindow(): blk.spr.labels[0] += CURSOR elif blk.name in BOX_STYLE_MEDIA and blk.name != 'camera': + # TODO: isolate reference to camera self._import_from_journal(self.selected_blk) if blk.name == 'journal' and self.running_sugar: self._load_description_block(blk) @@ -1628,7 +1615,7 @@ class TurtleArtWindow(): dy = 20 blk.expand_in_y(dy) else: - self._start_audiograb() + self._start_plugins() self._run_stack(blk) return @@ -1691,10 +1678,10 @@ class TurtleArtWindow(): elif blk.name in PYTHON_SKIN: self._import_py() else: - self._start_audiograb() + self._start_plugins() self._run_stack(blk) - elif blk.name in ['sandwichtop_no_arm_no_label', + elif blk.name in ['sandwichtop_no_arm_no_label', 'sandwichtop_no_arm']: restore_stack(blk) @@ -1706,7 +1693,7 @@ class TurtleArtWindow(): collapse_stack(top) else: - self._start_audiograb() + self._start_plugins() self._run_stack(blk) def _expand_boolean(self, blk, blk2, dy): @@ -1790,7 +1777,6 @@ class TurtleArtWindow(): """ Run a stack of blocks. """ if blk is None: return - self.lc.ag = None top = find_top_block(blk) self.lc.run_blocks(top, self.just_blocks(), True) if self.interactive_mode: @@ -1996,9 +1982,9 @@ class TurtleArtWindow(): if keyname == "p": self.hideshow_button() elif keyname == 'q': - if self.audio_started: - self.audiograb.stop_grabbing() - stop_media(self.lc) + self._plugins_quit() + if self.gst_available: + stop_media(self.lc) exit() elif keyname == 'g': self._align_to_grid() @@ -2356,7 +2342,7 @@ class TurtleArtWindow(): def new_project(self): """ Start a new project """ - stop_logo(self) + self.lc.stop_logo() self._loaded_project = "" # Put current project in the trash. while len(self.just_blocks()) > 0: @@ -2474,7 +2460,7 @@ class TurtleArtWindow(): if self.running_sugar: try: dsobject = datastore.get(value) - except: # Should be IOError, but dbus error is raised + except: # Should be IOError, but dbus error is raised dsobject = None _logger.debug("couldn't get dsobject %s" % value) if dsobject is not None: @@ -2515,6 +2501,7 @@ class TurtleArtWindow(): else: self._block_skin('pythonoff', blk) elif btype in BOX_STYLE_MEDIA and blk.spr is not None: + # TODO: isolate reference to camera if len(blk.values) == 0 or blk.values[0] == 'None' or \ blk.values[0] is None or btype == 'camera': self._block_skin(btype + 'off', blk) |