/usr/share/pyshared/TurtleArt/tawindow.py is in turtleart 98-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#Copyright (c) 2007, Playful Invention Company
#Copyright (c) 2008-10, Walter Bender
#Copyright (c) 2009-10 Raúl Gutiérrez Segalés
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#The above copyright notice and this permission notice shall be included in
#all copies or substantial portions of the Software.
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#THE SOFTWARE.
import pygtk
pygtk.require('2.0')
import gtk
import gobject
import os
import os.path
from math import atan2, pi
DEGTOR = 2*pi/360
from gettext import gettext as _
try:
from sugar.graphics.objectchooser import ObjectChooser
from sugar.datastore import datastore
from sugar import profile
except ImportError:
pass
from taconstants import HORIZONTAL_PALETTE, VERTICAL_PALETTE, BLOCK_SCALE, \
PALETTE_NAMES, TITLEXY, MEDIA_SHAPES, STATUS_SHAPES, \
OVERLAY_SHAPES, TOOLBAR_SHAPES, TAB_LAYER, \
OVERLAY_LAYER, CATEGORY_LAYER, BLOCKS_WITH_SKIN, \
ICON_SIZE, PALETTES, PALETTE_SCALE, BOX_STYLE_MEDIA, \
PALETTE_WIDTH, MACROS, TOP_LAYER, BLOCK_LAYER, \
CONTENT_BLOCKS, DEFAULTS, SPECIAL_NAMES, HELP_STRINGS, \
CURSOR, EXPANDABLE, COLLAPSIBLE, RETURN, \
DEAD_DICTS, DEAD_KEYS, TEMPLATES, PYTHON_SKIN, \
PALETTE_HEIGHT, STATUS_LAYER, OLD_DOCK, OLD_NAMES, \
BOOLEAN_STYLE, BLOCK_NAMES, DEFAULT_TURTLE, \
TURTLE_LAYER
from talogo import LogoCode, stop_logo
from tacanvas import TurtleGraphics
from tablock import Blocks, Block
from taturtle import Turtles, Turtle
from tautils import magnitude, get_load_name, get_save_name, data_from_file, \
data_to_file, round_int, get_id, get_pixbuf_from_journal, \
movie_media_type, audio_media_type, image_media_type, \
save_picture, save_svg, calc_image_size, get_path, \
reset_stack_arm, grow_stack_arm, find_sandwich_top, \
find_sandwich_bottom, restore_stack, collapse_stack, \
collapsed, collapsible, hide_button_hit, show_button_hit, \
arithmetic_check, xy, find_block_to_run, find_top_block, \
find_start_stack, find_group, find_blk_below, olpc_xo_1, \
dock_dx_dy, data_to_string
from tasprite_factory import SVG, svg_str_to_pixbuf, svg_from_file
from sprites import Sprites, Sprite
import logging
_logger = logging.getLogger('turtleart-activity')
class TurtleArtWindow():
""" TurtleArt Window class abstraction """
timeout_tag = [0]
def __init__(self, win, path, parent=None, mycolors=None, mynick=None):
self._loaded_project = ""
self.win = None
self.parent = parent
if type(win) == gtk.DrawingArea:
self.interactive_mode = True
self.window = win
self.window.set_flags(gtk.CAN_FOCUS)
if self.parent is not None:
self.parent.show_all()
self.running_sugar = True
else:
self.window.show_all()
self.running_sugar = False
self.area = self.window.window
self.gc = self.area.new_gc()
self._setup_events()
elif type(win) == gtk.gdk.Pixmap:
self.interactive_mode = False
self.window = win
self.running_sugar = False
self.gc = self.window.new_gc()
else:
_logger.debug("bad win type %s" % (type(win)))
if self.running_sugar:
self.activity = parent
self.nick = profile.get_nick_name()
else:
self.activity = None
self.nick = None
self.path = path
self.load_save_folder = os.path.join(path, 'samples')
self.save_folder = None
self.save_file_name = None
self.width = gtk.gdk.screen_width()
self.height = gtk.gdk.screen_height()
self.rect = gtk.gdk.Rectangle(0, 0, 0, 0)
self.keypress = ""
self.keyvalue = 0
self.dead_key = ""
self.mouse_flag = 0
self.mouse_x = 0
self.mouse_y = 0
self.orientation = HORIZONTAL_PALETTE
if olpc_xo_1():
self.lead = 1.0
self.scale = 0.67
self.color_mode = '565'
if self.running_sugar and not self.activity.new_sugar_system:
self.orientation = VERTICAL_PALETTE
else:
self.lead = 1.0
self.scale = 1.0
self.color_mode = '888' # TODO: Read visual mode from gtk image
self.block_scale = BLOCK_SCALE
self.trash_scale = 0.5
self.myblock = None
self.nop = 'nop'
self.loaded = 0
self.step_time = 0
self.hide = False
self.palette = True
self.coord_scale = 1
self.buddies = []
self.saved_string = ''
self.dx = 0
self.dy = 0
self.media_shapes = {}
self.cartesian = False
self.polar = False
self.overlay_shapes = {}
self.toolbar_shapes = {}
self.toolbar_offset = 0
self.status_spr = None
self.status_shapes = {}
self.toolbar_spr = None
self.palette_sprs = []
self.palettes = []
self.palette_button = []
self.trash_index = PALETTE_NAMES.index('trash')
self.trash_stack = []
self.selected_palette = None
self.previous_palette = None
self.selectors = []
self.selected_selector = None
self.previous_selector = None
self.selector_shapes = []
self.selected_blk = None
self.selected_spr = None
self.drag_group = None
self.drag_turtle = 'move', 0, 0
self.drag_pos = 0, 0
self.paste_offset = 20
self.block_list = Blocks(self.scale)
if self.interactive_mode:
self.sprite_list = Sprites(self.window, self.area, self.gc)
else:
self.sprite_list = None
self.turtles = Turtles(self.sprite_list)
if mynick is None:
self.default_turtle_name = DEFAULT_TURTLE
else:
self.default_turtle_name = mynick
if mycolors is None:
Turtle(self.turtles, self.default_turtle_name)
else:
Turtle(self.turtles, self.default_turtle_name, mycolors.split(','))
self.active_turtle = self.turtles.get_turtle(self.default_turtle_name)
self.saving_svg = False
self.svg_string = ''
self.selected_turtle = None
self.canvas = TurtleGraphics(self, self.width, self.height)
self.titlex = -(self.canvas.width * TITLEXY[0]) / \
(self.coord_scale * 2)
self.leftx = -(self.canvas.width * TITLEXY[0]) / \
(self.coord_scale * 2)
self.rightx = 0
self.titley = (self.canvas.height * TITLEXY[1]) / \
(self.coord_scale * 2)
self.topy = (self.canvas.height*(TITLEXY[1] - 0.125)) / \
(self.coord_scale * 2)
self.bottomy = 0
self.lc = LogoCode(self)
self.saved_pictures = []
if self.interactive_mode:
self._setup_misc()
self._show_toolbar_palette(0, False)
self.block_operation = ''
def _setup_events(self):
""" Register the events we listen to. """
self.window.add_events(gtk.gdk.BUTTON_PRESS_MASK)
self.window.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
self.window.add_events(gtk.gdk.POINTER_MOTION_MASK)
self.window.add_events(gtk.gdk.KEY_PRESS_MASK)
self.window.connect("expose-event", self._expose_cb)
self.window.connect("button-press-event", self._buttonpress_cb)
self.window.connect("button-release-event", self._buttonrelease_cb)
self.window.connect("motion-notify-event", self._move_cb)
self.window.connect("key_press_event", self._keypress_cb)
def _setup_misc(self):
""" Misc. sprites for status, overlays, etc. """
# media blocks get positioned into other blocks
for _name in MEDIA_SHAPES:
if _name[0:7] == 'journal' and not self.running_sugar:
file_name = 'file' + _name[7:]
else:
file_name = _name
self.media_shapes[_name] = svg_str_to_pixbuf(svg_from_file(
"%s/images/%s.svg" % (self.path, file_name)))
for i, _name in enumerate(STATUS_SHAPES):
self.status_shapes[_name] = svg_str_to_pixbuf(svg_from_file(
"%s/images/%s.svg" % (self.path, _name)))
self.status_spr = Sprite(self.sprite_list, 0, self.height-200,
self.status_shapes['status'])
self.status_spr.hide()
self.status_spr.type = 'status'
for _name in OVERLAY_SHAPES:
self.overlay_shapes[_name] = Sprite(self.sprite_list,
int(self.width/2-600),
int(self.height/2-450),
svg_str_to_pixbuf(
svg_from_file("%s/images/%s.svg" % (self.path, _name))))
self.overlay_shapes[_name].hide()
self.overlay_shapes[_name].type = 'overlay'
if not self.running_sugar:
offset = self.width-55*len(TOOLBAR_SHAPES)
for i, _name in enumerate(TOOLBAR_SHAPES):
self.toolbar_shapes[_name] = Sprite(self.sprite_list,
i * 55 + offset, 0,
svg_str_to_pixbuf(
svg_from_file("%s/icons/%s.svg" % (self.path, _name))))
self.toolbar_shapes[_name].set_layer(TAB_LAYER)
self.toolbar_shapes[_name].name = _name
self.toolbar_shapes[_name].type = 'toolbar'
self.toolbar_shapes['stopiton'].hide()
def sharing(self):
""" Is a chattube available for share? """
if self.running_sugar and hasattr(self.activity, 'chattube') and\
self.activity.chattube is not None:
return True
return False
def is_project_empty(self):
""" Check to see if project has any blocks in use """
return len(self.just_blocks()) == 1
def _expose_cb(self, win, event):
""" Repaint """
self.sprite_list.refresh(event)
return True
def eraser_button(self):
""" Eraser_button (hide status block when clearing the screen.) """
if self.status_spr is not None:
self.status_spr.hide()
self.lc.prim_clear()
self.display_coordinates()
def run_button(self, time):
""" Run turtle! """
if self.running_sugar:
self.activity.recenter()
# Look for a 'start' block
for blk in self.just_blocks():
if find_start_stack(blk):
self.step_time = time
_logger.debug("running stack starting from %s" % (blk.name))
self._run_stack(blk)
return
# If there is no 'start' block, run stacks that aren't 'def action'
for blk in self.just_blocks():
if find_block_to_run(blk):
self.step_time = time
_logger.debug("running stack starting from %s" % (blk.name))
self._run_stack(blk)
return
def stop_button(self):
""" Stop button """
stop_logo(self)
def set_userdefined(self):
""" Change icon for user-defined blocks after Python code is loaded. """
for blk in self.just_blocks():
if blk.name in PYTHON_SKIN:
x, y = self._calc_image_offset('pythonon', blk.spr)
blk.set_image(self.media_shapes['pythonon'], x, y)
self._resize_skin(blk)
self.nop = 'pythonloaded'
def set_fullscreen(self):
""" Enter fullscreen mode """
if self.running_sugar:
self.activity.fullscreen()
self.activity.recenter()
def set_cartesian(self, flag):
""" Turn on/off Cartesian coordinates """
if flag:
if self.coord_scale == 1:
self.overlay_shapes['Cartesian_labeled'].set_layer(
OVERLAY_LAYER)
else:
self.overlay_shapes['Cartesian'].set_layer(OVERLAY_LAYER)
self.cartesian = True
else:
if self.coord_scale == 1:
self.overlay_shapes['Cartesian_labeled'].hide()
else:
self.overlay_shapes['Cartesian'].hide()
self.cartesian = False
def set_polar(self, flag):
""" Turn on/off polar coordinates """
if flag:
self.overlay_shapes['polar'].set_layer(OVERLAY_LAYER)
self.polar = True
else:
self.overlay_shapes['polar'].hide()
self.polar = False
def update_overlay_position(self, widget, event):
""" Reposition the overlays when window size changes """
self.width = event.width
self.height = event.height
for _name in OVERLAY_SHAPES:
shape = self.overlay_shapes[_name]
showing = False
if shape in shape._sprites.list:
shape.hide()
showing = True
self.overlay_shapes[_name] = Sprite(self.sprite_list,
int(self.width / 2 - 600),
int(self.height / 2 - 450),
svg_str_to_pixbuf(
svg_from_file("%s/images/%s.svg" % (self.path, _name))))
if showing:
self.overlay_shapes[_name].set_layer(OVERLAY_LAYER)
else:
self.overlay_shapes[_name].hide()
self.overlay_shapes[_name].type = 'overlay'
self.cartesian = False
self.polar = False
self.canvas.width = self.width
self.canvas.height = self.height
self.canvas.move_turtle()
def hideshow_button(self):
""" Hide/show button """
if not self.hide:
for blk in self.just_blocks():
blk.spr.hide()
self.hide_palette()
self.hide = True
else:
for blk in self.just_blocks():
if blk.status != 'collapsed':
blk.spr.set_layer(BLOCK_LAYER)
self.show_palette()
if self.activity is not None and self.activity.new_sugar_system:
self.activity.palette_buttons[0].set_icon(
PALETTE_NAMES[0] + 'on')
self.hide = False
self.canvas.canvas.inval()
def hideshow_palette(self, state):
""" Hide or show palette """
if not state:
self.palette = False
if self.running_sugar:
self.activity.do_hidepalette()
self.hide_palette()
else:
self.palette = True
if self.running_sugar:
self.activity.do_showpalette()
self.show_palette()
def show_palette(self, n=0):
""" Show palette """
self._show_toolbar_palette(n)
self.palette_button[self.orientation].set_layer(TAB_LAYER)
self.palette_button[2].set_layer(TAB_LAYER)
if self.activity is None or not self.activity.new_sugar_system:
self.toolbar_spr.set_layer(CATEGORY_LAYER)
self.palette = True
def hide_palette(self):
""" Hide the palette. """
self._hide_toolbar_palette()
self.palette_button[self.orientation].hide()
self.palette_button[2].hide()
if self.activity is None or not self.activity.new_sugar_system:
self.toolbar_spr.hide()
self.palette = False
def hideblocks(self):
""" Callback from 'hide blocks' block """
if not self.interactive_mode:
return
self.hide = False
self.hideshow_button()
if self.running_sugar:
self.activity.do_hide()
def showblocks(self):
""" Callback from 'show blocks' block """
if not self.interactive_mode:
return
self.hide = True
self.hideshow_button()
if self.running_sugar:
self.activity.do_show()
def resize_blocks(self, blocks=None):
""" Resize blocks or if blocks is None, all of the blocks """
if blocks is None:
blocks = self.just_blocks()
# We need to restore collapsed stacks before resizing.
for blk in blocks:
if blk.status == 'collapsed':
bot = find_sandwich_bottom(blk)
if collapsed(bot):
dy = bot.values[0]
restore_stack(find_sandwich_top(blk))
bot.values[0] = dy
# Do the resizing.
for blk in blocks:
blk.rescale(self.block_scale)
for blk in blocks:
self._adjust_dock_positions(blk)
# Re-collapsed stacks after resizing.
for blk in blocks:
if collapsed(blk):
collapse_stack(find_sandwich_top(blk))
for blk in blocks:
if blk.name in ['sandwichtop', 'sandwichtop_no_label']:
grow_stack_arm(blk)
# Resize the skins on some blocks: media content and Python
for blk in blocks:
if blk.name in BLOCKS_WITH_SKIN:
self._resize_skin(blk)
def _show_toolbar_palette(self, n, init_only=False):
""" Show the toolbar palettes, creating them on init_only """
if (self.activity is None or not self.activity.new_sugar_system) and\
self.selectors == []:
# Create the selectors
svg = SVG()
x, y = 50, 0
for i, name in enumerate(PALETTE_NAMES):
a = svg_str_to_pixbuf(svg_from_file("%s/icons/%soff.svg" % (
self.path, name)))
b = svg_str_to_pixbuf(svg_from_file("%s/icons/%son.svg" % (
self.path, name)))
self.selector_shapes.append([a, b])
self.selectors.append(Sprite(self.sprite_list, x, y, a))
self.selectors[i].type = 'selector'
self.selectors[i].name = name
self.selectors[i].set_layer(TAB_LAYER)
w = self.selectors[i].get_dimensions()[0]
x += int(w)
# Create the toolbar background
self.toolbar_offset = ICON_SIZE
self.toolbar_spr = Sprite(self.sprite_list, 0, 0,
svg_str_to_pixbuf(svg.toolbar(self.width, ICON_SIZE)))
self.toolbar_spr.type = 'toolbar'
self.toolbar_spr.set_layer(CATEGORY_LAYER)
if self.palette_sprs == []:
# Create the empty palettes
if len(self.palettes) == 0:
for i in range(len(PALETTES)):
self.palettes.append([])
# Create empty palette backgrounds
for i in PALETTE_NAMES:
self.palette_sprs.append([None, None])
# Create the palette orientation button
self.palette_button.append(Sprite(self.sprite_list, 0,
self.toolbar_offset, svg_str_to_pixbuf(svg_from_file(
"%s/images/palettehorizontal.svg" %(self.path)))))
self.palette_button.append(Sprite(self.sprite_list, 0,
self.toolbar_offset, svg_str_to_pixbuf(svg_from_file(
"%s/images/palettevertical.svg" % (self.path)))))
self.palette_button[0].name = _('orientation')
self.palette_button[1].name = _('orientation')
self.palette_button[0].type = 'palette'
self.palette_button[1].type = 'palette'
self.palette_button[self.orientation].set_layer(TAB_LAYER)
self.palette_button[1-self.orientation].hide()
# Create the palette next button
self.palette_button.append(Sprite(self.sprite_list, 16,
self.toolbar_offset, svg_str_to_pixbuf(svg_from_file(
"%s/images/palettenext.svg" %(self.path)))))
self.palette_button[2].name = _('next')
self.palette_button[2].type = 'palette'
self.palette_button[2].set_layer(TAB_LAYER)
if init_only:
return
# Hide the previously displayed palette
self._hide_previous_palette()
self.selected_palette = n
self.previous_palette = self.selected_palette
if self.activity is None or not self.activity.new_sugar_system:
self.selected_selector = self.selectors[n]
# Make sure all of the selectors are visible.
self.selectors[n].set_shape(self.selector_shapes[n][1])
for i in range(len(PALETTES)):
self.selectors[i].set_layer(TAB_LAYER)
# Show the palette with the current orientation.
if self.palette_sprs[n][self.orientation] is not None:
self.palette_sprs[n][self.orientation].set_layer(CATEGORY_LAYER)
if self.palettes[n] == []:
# Create 'proto' blocks for each palette entry
for i, name in enumerate(PALETTES[n]):
self.palettes[n].append(Block(self.block_list,
self.sprite_list, name,
0, 0, 'proto', [], PALETTE_SCALE))
self.palettes[n][i].spr.set_layer(TAB_LAYER)
self.palettes[n][i].unhighlight()
# Some proto blocks get a skin.
if name in BOX_STYLE_MEDIA:
self._proto_skin(name+'small', n, i)
elif name[:8] == 'template':
self._proto_skin(name[8:], n, i)
elif name[:7] == 'picture':
self._proto_skin(name[7:], n, i)
elif name in PYTHON_SKIN:
self._proto_skin('pythonsmall', n, i)
self._layout_palette(n)
for blk in self.palettes[n]:
blk.spr.set_layer(TAB_LAYER)
if n == self.trash_index:
for blk in self.trash_stack:
for gblk in find_group(blk):
if gblk.status != 'collapsed':
gblk.spr.set_layer(TAB_LAYER)
def _hide_toolbar_palette(self):
""" Hide the toolbar palettes """
self._hide_previous_palette()
if self.activity is None or not self.activity.new_sugar_system:
# Hide the selectors
for i in range(len(PALETTES)):
self.selectors[i].hide()
elif self.selected_palette is not None:
self.activity.palette_buttons[self.selected_palette].set_icon(
PALETTE_NAMES[self.selected_palette] + 'off')
self.selected_palette = None
self.previous_palette = None
def _hide_previous_palette(self):
""" Hide just the previously viewed toolbar palette """
# Hide previous palette
if self.previous_palette is not None:
for i in range(len(PALETTES[self.previous_palette])):
self.palettes[self.previous_palette][i].spr.hide()
self.palette_sprs[self.previous_palette][
self.orientation].hide()
if self.activity is None or not self.activity.new_sugar_system:
self.selectors[self.previous_palette].set_shape(
self.selector_shapes[self.previous_palette][0])
elif self.previous_palette is not None and \
self.previous_palette != self.selected_palette:
self.activity.palette_buttons[self.previous_palette].set_icon(
PALETTE_NAMES[self.previous_palette] + 'off')
if self.previous_palette == self.trash_index:
for blk in self.trash_stack:
for gblk in find_group(blk):
gblk.spr.hide()
def _horizontal_layout(self, x, y, blocks):
""" Position prototypes in a horizontal palette. """
_max_w = 0
for blk in blocks:
_w, _h = self._width_and_height(blk)
if y + _h > PALETTE_HEIGHT + self.toolbar_offset:
x += int(_max_w+3)
y = self.toolbar_offset + 3
_max_w = 0
(_bx, _by) = blk.spr.get_xy()
_dx = x-_bx
_dy = y-_by
for g in find_group(blk):
g.spr.move_relative((int(_dx), int(_dy)))
y += int(_h+3)
if _w > _max_w:
_max_w = _w
return x, y, _max_w
def _vertical_layout(self, x, y, blocks):
""" Position prototypes in a vertical palette. """
_row = []
_row_w = 0
_max_h = 0
for _b in blocks:
_w, _h = self._width_and_height(_b)
if x + _w > PALETTE_WIDTH:
# Recenter row.
_dx = int((PALETTE_WIDTH-_row_w)/2)
for _r in _row:
for _g in find_group(_r):
_g.spr.move_relative((_dx, 0))
_row = []
_row_w = 0
x = 4
y += int(_max_h+3)
_max_h = 0
_row.append(_b)
_row_w += (4 + _w)
(_bx, _by) = _b.spr.get_xy()
_dx = int(x - _bx)
_dy = int(y - _by)
for _g in find_group(_b):
_g.spr.move_relative((_dx, _dy))
x += int(_w + 4)
if _h > _max_h:
_max_h = _h
# Recenter last row.
_dx = int((PALETTE_WIDTH - _row_w)/2)
for _r in _row:
for _g in find_group(_r):
_g.spr.move_relative((_dx, 0))
return x, y, _max_h
def _layout_palette(self, n):
""" Layout prototypes in a palette. """
if n is not None:
if self.orientation == HORIZONTAL_PALETTE:
_x, _y = 20, self.toolbar_offset + 5
_x, _y, _max = self._horizontal_layout(_x, _y, self.palettes[n])
if n == self.trash_index:
_x, _y, _max = self._horizontal_layout(_x+_max, _y,
self.trash_stack)
_w = _x + _max + 25
if self.palette_sprs[n][self.orientation] is None:
svg = SVG()
self.palette_sprs[n][self.orientation] = Sprite(
self.sprite_list, 0, self.toolbar_offset,
svg_str_to_pixbuf(svg.palette(_w, PALETTE_HEIGHT)))
self.palette_sprs[n][self.orientation].type = 'category'
if n == PALETTE_NAMES.index('trash'):
svg = SVG()
self.palette_sprs[n][self.orientation].set_shape(
svg_str_to_pixbuf(svg.palette(_w, PALETTE_HEIGHT)))
self.palette_button[2].move((_w-20, self.toolbar_offset))
else:
_x, _y = 5, self.toolbar_offset + 15
_x, _y, _max = self._vertical_layout(_x, _y, self.palettes[n])
if n == PALETTE_NAMES.index('trash'):
_x, _y, _max = self._vertical_layout(_x, _y + _max,
self.trash_stack)
_h = _y + _max + 25 - self.toolbar_offset
if self.palette_sprs[n][self.orientation] is None:
svg = SVG()
self.palette_sprs[n][self.orientation] = \
Sprite(self.sprite_list, 0, self.toolbar_offset,
svg_str_to_pixbuf(svg.palette(PALETTE_WIDTH, _h)))
self.palette_sprs[n][self.orientation].type = 'category'
if n == PALETTE_NAMES.index('trash'):
svg = SVG()
self.palette_sprs[n][self.orientation].set_shape(
svg_str_to_pixbuf(svg.palette(PALETTE_WIDTH, _h)))
self.palette_button[2].move((PALETTE_WIDTH-20,
self.toolbar_offset))
self.palette_sprs[n][self.orientation].set_layer(CATEGORY_LAYER)
def _buttonpress_cb(self, win, event):
""" Button press """
self.window.grab_focus()
x, y = xy(event)
self.mouse_flag = 1
self.mouse_x = x
self.mouse_y = y
self.button_press(event.get_state()>k.gdk.CONTROL_MASK, x, y)
return True
def button_press(self, mask, x, y):
self.block_operation = 'click'
# Unselect things that may have been selected earlier
if self.selected_blk is not None:
self._unselect_block()
self.selected_turtle = None
# Always hide the status layer on a click
if self.status_spr is not None:
self.status_spr.hide()
# Find out what was clicked
spr = self.sprite_list.find_sprite((x, y))
self.dx = 0
self.dy = 0
if spr is None:
return True
self.selected_spr = spr
# From the sprite at x, y, look for a corresponding block
blk = self.block_list.spr_to_block(spr)
if blk is not None:
if blk.type == 'block':
self.selected_blk = blk
self._block_pressed(x, y, blk)
elif blk.type == 'trash':
self._restore_from_trash(find_top_block(blk))
elif blk.type == 'proto':
if blk.name == 'restoreall':
self._restore_all_from_trash()
elif blk.name == 'restore':
self._restore_latest_from_trash()
elif blk.name == 'empty':
self._empty_trash()
elif MACROS.has_key(blk.name):
self._new_macro(blk.name, x + 20, y + 20)
else:
blk.highlight()
self._new_block(blk.name, x, y)
blk.unhighlight()
return True
# Next, look for a turtle
t = self.turtles.spr_to_turtle(spr)
if t is not None:
self.selected_turtle = t
self.canvas.set_turtle(self.turtles.get_turtle_key(t))
self._turtle_pressed(x, y)
return True
# Finally, check for anything else
if hasattr(spr, 'type'):
if spr.type == "canvas":
pass
# spr.set_layer(CANVAS_LAYER)
elif spr.type == 'selector':
self._select_category(spr)
elif spr.type == 'category':
if hide_button_hit(spr, x, y):
self.hideshow_palette(False)
elif spr.type == 'palette':
if spr.name == _('next'):
i = self.selected_palette + 1
if i == len(PALETTE_NAMES):
i = 0
if self.activity is None or \
not self.activity.new_sugar_system:
self._select_category(self.selectors[i])
else:
if self.selected_palette is not None:
self.activity.palette_buttons[
self.selected_palette].set_icon(
PALETTE_NAMES[self.selected_palette] + 'off')
self.activity.palette_buttons[i].set_icon(
PALETTE_NAMES[i] + 'on')
self.show_palette(i)
else:
self.orientation = 1 - self.orientation
self.palette_button[self.orientation].set_layer(TAB_LAYER)
self.palette_button[1 - self.orientation].hide()
self.palette_sprs[self.selected_palette][
1 - self.orientation].hide()
self._layout_palette(self.selected_palette)
self.show_palette(self.selected_palette)
elif spr.type == 'toolbar':
self._select_toolbar_button(spr)
return True
def _select_category(self, spr):
""" Select a category from the toolbar (old Sugar systems only). """
i = self.selectors.index(spr)
spr.set_shape(self.selector_shapes[i][1])
if self.selected_selector is not None:
j = self.selectors.index(self.selected_selector)
if i == j:
return
self.selected_selector.set_shape(self.selector_shapes[j][0])
self.previous_selector = self.selected_selector
self.selected_selector = spr
self.show_palette(i)
def _select_toolbar_button(self, spr):
""" Select a toolbar button (Used when not running Sugar). """
if not hasattr(spr, 'name'):
return
if spr.name == 'run-fastoff':
self.lc.trace = 0
self.run_button(0)
elif spr.name == 'run-slowoff':
self.lc.trace = 0
self.run_button(3)
elif spr.name == 'debugoff':
self.lc.trace = 1
self.run_button(6)
elif spr.name == 'stopiton':
self.stop_button()
self.toolbar_shapes['stopiton'].hide()
elif spr.name == 'eraseron':
self.eraser_button()
elif spr.name == 'hideshowoff':
self.hideshow_button()
def _put_in_trash(self, blk, x=0, y=0):
""" Put a group of blocks into the trash. """
self.trash_stack.append(blk)
group = find_group(blk)
for gblk in group:
if gblk.status == 'collapsed':
# Collapsed stacks are restored for rescaling
# and then recollapsed after they are moved to the trash.
bot = find_sandwich_bottom(gblk)
if collapsed(bot):
dy = bot.values[0]
restore_stack(find_sandwich_top(gblk))
bot.values[0] = dy
gblk.type = 'trash'
gblk.rescale(self.trash_scale)
blk.spr.move((x, y))
for gblk in group:
self._adjust_dock_positions(gblk)
# Re-collapsing any stacks we had restored for scaling
for gblk in group:
if collapsed(gblk):
collapse_stack(find_sandwich_top(gblk))
# And resize any skins.
for gblk in group:
if gblk.name in BLOCKS_WITH_SKIN:
self._resize_skin(gblk)
# self.show_palette(self.trash_index)
if self.selected_palette != self.trash_index:
for gblk in group:
gblk.spr.hide()
def _restore_all_from_trash(self):
""" Restore all the blocks in the trash can. """
for blk in self.block_list.list:
if blk.type == 'trash':
self._restore_from_trash(blk)
def _restore_latest_from_trash(self):
""" Restore most recent blocks from the trash can. """
if len(self.trash_stack) == 0:
return
self._restore_from_trash(self.trash_stack[len(self.trash_stack) - 1])
def _restore_from_trash(self, blk):
group = find_group(blk)
for gblk in group:
gblk.rescale(self.block_scale)
gblk.spr.set_layer(BLOCK_LAYER)
x, y = gblk.spr.get_xy()
if self.orientation == 0:
gblk.spr.move((x, y + PALETTE_HEIGHT + self.toolbar_offset))
else:
gblk.spr.move((x + PALETTE_WIDTH, y))
gblk.type = 'block'
for gblk in group:
self._adjust_dock_positions(gblk)
# If the stack had been collapsed before going into the trash,
# collapse it again now.
for gblk in group:
if collapsed(gblk):
collapse_stack(find_sandwich_top(gblk))
# And resize any skins.
for gblk in group:
if gblk.name in BLOCKS_WITH_SKIN:
self._resize_skin(gblk)
self.trash_stack.remove(blk)
def _empty_trash(self):
""" Permanently remove all blocks presently in the trash can. """
for blk in self.block_list.list:
if blk.type == 'trash':
blk.type = 'deleted'
blk.spr.hide()
self.trash_stack = []
def _in_the_trash(self, x, y):
""" Is x, y over the trash can? """
"""
if self.selected_palette == self.trash_index and \
self.palette_sprs[self.trash_index][self.orientation].hit((x, y)):
return True
"""
if self.selected_palette is not None and\
self.palette_sprs[self.selected_palette][self.orientation].hit(
(x, y)):
return True
return False
def _block_pressed(self, x, y, blk):
""" Block pressed """
if blk is not None:
blk.highlight()
self._disconnect(blk)
self.drag_group = find_group(blk)
(sx, sy) = blk.spr.get_xy()
self.drag_pos = x-sx, y-sy
for blk in self.drag_group:
if blk.status != 'collapsed':
blk.spr.set_layer(TOP_LAYER)
self.saved_string = blk.spr.labels[0]
def _unselect_block(self):
""" Unselect block """
# After unselecting a 'number' block, we need to check its value
if self.selected_blk.name == 'number':
self._number_check()
elif self.selected_blk.name == 'string':
self._string_check()
self.selected_blk.unhighlight()
self.selected_blk = None
def _new_block(self, name, x, y):
""" Make a new block. """
if name in CONTENT_BLOCKS:
newblk = Block(self.block_list, self.sprite_list, name, x - 20,
y - 20, 'block', DEFAULTS[name], self.block_scale)
else:
newblk = Block(self.block_list, self.sprite_list, name, x - 20,
y - 20, 'block', [], self.block_scale)
# Add a 'skin' to some blocks
if name in PYTHON_SKIN:
if self.nop == 'pythonloaded':
self._block_skin('pythonon', newblk)
else:
self._block_skin('pythonoff', newblk)
elif name in BOX_STYLE_MEDIA:
self._block_skin(name+'off', newblk)
newspr = newblk.spr
newspr.set_layer(TOP_LAYER)
self.drag_pos = 20, 20
newblk.connections = [None]*len(newblk.docks)
if DEFAULTS.has_key(newblk.name):
for i, argvalue in enumerate(DEFAULTS[newblk.name]):
# skip the first dock position since it is always a connector
dock = newblk.docks[i + 1]
argname = dock[0]
if argname == 'unavailable':
continue
if argname == 'media':
argname = 'journal'
elif argname == 'number' and \
(type(argvalue) is str or type(argvalue) is unicode):
argname = 'string'
elif argname == 'bool':
argname = argvalue
elif argname == 'flow':
argname = argvalue
(sx, sy) = newspr.get_xy()
if argname is not None:
if argname in CONTENT_BLOCKS:
argblk = Block(self.block_list, self.sprite_list,
argname, 0, 0, 'block', [argvalue],
self.block_scale)
else:
argblk = Block(self.block_list, self.sprite_list,
argname, 0, 0, 'block', [],
self.block_scale)
argdock = argblk.docks[0]
nx = sx + dock[2] - argdock[2]
ny = sy + dock[3] - argdock[3]
if argname == 'journal':
self._block_skin('journaloff', argblk)
argblk.spr.move((nx, ny))
argblk.spr.set_layer(TOP_LAYER)
argblk.connections = [newblk, None]
newblk.connections[i + 1] = argblk
self.drag_group = find_group(newblk)
self.block_operation = 'new'
def _new_macro(self, name, x, y):
""" Create a "macro" (predefined stack of blocks). """
macro = MACROS[name]
macro[0][2] = x
macro[0][3] = y
top = self.process_data(macro)
self.block_operation = 'new'
self._check_collapsibles(top)
self.drag_group = find_group(top)
def process_data(self, block_data, offset=0):
""" Process block_data (from a macro, a file, or the clipboard). """
if offset != 0:
_logger.debug("offset is %d" % (offset))
# Create the blocks (or turtle).
blocks = []
for blk in block_data:
if not self._found_a_turtle(blk):
blocks.append(self.load_block(blk, offset))
# Make the connections.
for i in range(len(blocks)):
cons = []
# Normally, it is simply a matter of copying the connections.
if blocks[i].connections == None:
for c in block_data[i][4]:
if c is None:
cons.append(None)
else:
cons.append(blocks[c])
elif blocks[i].connections == 'check':
# Corner case to convert old-style boolean and arithmetic blocks
cons.append(None) # Add an extra connection.
for c in block_data[i][4]:
if c is None:
cons.append(None)
else:
cons.append(blocks[c])
# If the boolean op was connected, readjust the plumbing.
if blocks[i].name in BOOLEAN_STYLE:
if block_data[i][4][0] is not None:
c = block_data[i][4][0]
cons[0] = blocks[block_data[c][4][0]]
c0 = block_data[c][4][0]
for j, cj in enumerate(block_data[c0][4]):
if cj == c:
blocks[c0].connections[j] = blocks[i]
if c < i:
blocks[c].connections[0] = blocks[i]
blocks[c].connections[3] = None
else:
# Connection was to a block we haven't seen yet.
_logger.debug("Warning: dock to the future")
else:
if block_data[i][4][0] is not None:
c = block_data[i][4][0]
cons[0] = blocks[block_data[c][4][0]]
c0 = block_data[c][4][0]
for j, cj in enumerate(block_data[c0][4]):
if cj == c:
blocks[c0].connections[j] = blocks[i]
if c < i:
blocks[c].connections[0] = blocks[i]
blocks[c].connections[1] = None
else:
# Connection was to a block we haven't seen yet.
_logger.debug("Warning: dock to the future")
else:
_logger.debug("Warning: unknown connection state %s" % \
(str(blocks[i].connections)))
blocks[i].connections = cons[:]
# Block sizes and shapes may have changed.
for blk in blocks:
self._adjust_dock_positions(blk)
# Look for any stacks that need to be collapsed or sandwiched
for blk in blocks:
if collapsed(blk):
collapse_stack(find_sandwich_top(blk))
elif blk.name == 'sandwichbottom' and collapsible(blk):
blk.svg.set_hide(True)
blk.svg.set_show(False)
blk.refresh()
grow_stack_arm(find_sandwich_top(blk))
# Resize blocks to current scale
self.resize_blocks(blocks)
if len(blocks) > 0:
return blocks[0]
else:
return None
def _adjust_dock_positions(self, blk):
""" Adjust the dock x, y positions """
if not self.interactive_mode:
return
(sx, sy) = blk.spr.get_xy()
for i, c in enumerate(blk.connections):
if i > 0 and c is not None:
bdock = blk.docks[i]
for j in range(len(c.docks)):
if c.connections[j] == blk:
cdock = c.docks[j]
nx = sx + bdock[2] - cdock[2]
ny = sy + bdock[3] - cdock[3]
c.spr.move((nx, ny))
self._adjust_dock_positions(c)
def _turtle_pressed(self, x, y):
(tx, ty) = self.selected_turtle.get_xy()
dx = x - tx - 30
dy = y - ty - 30
if (dx * dx) + (dy * dy) > 200:
self.drag_turtle = ('turn',
self.canvas.heading - atan2(dy, dx)/DEGTOR, 0)
else:
self.drag_turtle = ('move', x - tx, y - ty)
def _move_cb(self, win, event):
x, y = xy(event)
self._mouse_move(x, y)
return True
def _mouse_move(self, x, y):
""" Process mouse movements """
self.block_operation = 'move'
# First, check to see if we are dragging or rotating a turtle.
if self.selected_turtle is not None:
dtype, dragx, dragy = self.drag_turtle
(sx, sy) = self.selected_turtle.get_xy()
if dtype == 'move':
dx = x - dragx - sx
dy = y - dragy - sy
self.selected_turtle.spr.set_layer(TOP_LAYER)
self.selected_turtle.move((sx + dx, sy + dy))
else:
dx = x - sx - 30
dy = y - sy - 30
self.canvas.seth(int(dragx + atan2(dy, dx)/DEGTOR + 5)/10 * 10)
# If we are hoving, show popup help.
elif self.drag_group is None:
self._show_popup(x, y)
return
# If we have a stack of blocks selected, move them.
elif self.drag_group[0] is not None:
blk = self.drag_group[0]
# Don't move a bottom blk if the stack is collapsed
if collapsed(blk):
return
self.selected_spr = blk.spr
dragx, dragy = self.drag_pos
(sx, sy) = blk.spr.get_xy()
dx = x - dragx - sx
dy = y - dragy - sy
# Take no action if there was a move of 0,0.
if dx == 0 and dy == 0:
return
self.drag_group = find_group(blk)
# Prevent blocks from ending up with a negative x...
for blk in self.drag_group:
(bx, by) = blk.spr.get_xy()
if bx + dx < 0:
dx = -bx
# Move the stack
"""
for blk in self.drag_group:
(bx, by) = blk.spr.get_xy()
blk.spr.move((bx + dx, by + dy), not blk.status=='collapsed')
"""
# Calculate a bounding box and only invalidate once.
minx = blk.spr.rect.x
miny = blk.spr.rect.y
maxx = blk.spr.rect.x + blk.spr.rect.width
maxy = blk.spr.rect.y + blk.spr.rect.height
for blk in self.drag_group:
if blk.spr.rect.x < minx:
minx = blk.spr.rect.x
if blk.spr.rect.x + blk.spr.rect.width > maxx:
maxx = blk.spr.rect.x + blk.spr.rect.width
if blk.spr.rect.y < miny:
miny = blk.spr.rect.y
if blk.spr.rect.y + blk.spr.rect.height > maxy:
maxy = blk.spr.rect.y + blk.spr.rect.height
blk.spr.rect.x += dx
blk.spr.rect.y += dy
if dx < 0:
minx += dx
else:
maxx += dx
if dy < 0:
miny += dy
else:
maxy += dy
self.rect.x = minx
self.rect.y = miny
self.rect.width = maxx - minx
self.rect.height = maxy - miny
self.sprite_list.area.invalidate_rect(self.rect, False)
self.dx += dx
self.dy += dy
def _show_popup(self, x, y):
""" Let's help our users by displaying a little help. """
spr = self.sprite_list.find_sprite((x, y))
blk = self.block_list.spr_to_block(spr)
if spr and blk is not None:
if self.timeout_tag[0] == 0:
self.timeout_tag[0] = self._do_show_popup(blk.name)
self.selected_spr = spr
else:
if self.timeout_tag[0] > 0:
try:
gobject.source_remove(self.timeout_tag[0])
self.timeout_tag[0] = 0
except:
self.timeout_tag[0] = 0
elif spr and hasattr(spr,'type') and (spr.type == 'selector' or\
spr.type == 'palette' or\
spr.type == 'toolbar'):
if self.timeout_tag[0] == 0 and hasattr(spr, 'name'):
self.timeout_tag[0] = self._do_show_popup(spr.name)
self.selected_spr = spr
else:
if self.timeout_tag[0] > 0:
try:
gobject.source_remove(self.timeout_tag[0])
self.timeout_tag[0] = 0
except:
self.timeout_tag[0] = 0
else:
if self.timeout_tag[0] > 0:
try:
gobject.source_remove(self.timeout_tag[0])
self.timeout_tag[0] = 0
except:
self.timeout_tag[0] = 0
def _do_show_popup(self, block_name):
""" Fetch the help text and display it. """
if SPECIAL_NAMES.has_key(block_name):
block_name_s = SPECIAL_NAMES[block_name]
elif BLOCK_NAMES.has_key(block_name):
block_name_s = BLOCK_NAMES[block_name][0]
elif block_name in TOOLBAR_SHAPES:
block_name_s = ''
else:
block_name_s = _(block_name)
if HELP_STRINGS.has_key(block_name):
if block_name_s == '':
label = HELP_STRINGS[block_name]
else:
label = block_name_s + ": " + HELP_STRINGS[block_name]
else:
label = block_name_s
if self.running_sugar:
self.activity.hover_help_label.set_text(label)
self.activity.hover_help_label.show()
else:
if self.interactive_mode:
self.win.set_title(_("Turtle Art") + " — " + label)
return 0
def _buttonrelease_cb(self, win, event):
""" Button release """
x, y = xy(event)
self.button_release(x, y)
return True
def button_release(self, x, y):
# We may have been moving the turtle
if self.selected_turtle is not None:
(tx, ty) = self.selected_turtle.get_xy()
k = self.turtles.get_turtle_key(self.selected_turtle)
# Remove turtles by dragging them onto the trash palette.
if self._in_the_trash(tx, ty):
# If it is the default turtle, just recenter it.
if k == self.default_turtle_name:
self._move_turtle(0, 0)
self.canvas.heading = 0
self.canvas.turn_turtle()
else:
self.selected_turtle.hide()
self.turtles.remove_from_dict(k)
else:
self._move_turtle(tx - self.canvas.width / 2 + 30,
self.canvas.height / 2 - ty - 30)
self.selected_turtle = None
self.active_turtle = self.turtles.get_turtle(
self.default_turtle_name)
return
# If we don't have a group of blocks, then there is nothing to do.
if self.drag_group == None:
return
blk = self.drag_group[0]
# Remove blocks by dragging them onto the trash palette.
if self.block_operation == 'move' and self._in_the_trash(x, y):
self._put_in_trash(blk, x, y)
self.drag_group = None
return
# Pull a stack of new blocks off of the category palette.
if self.block_operation == 'new':
for gblk in self.drag_group:
(bx, by) = gblk.spr.get_xy()
if self.orientation == 0:
gblk.spr.move((bx+20,
by+PALETTE_HEIGHT+self.toolbar_offset))
else:
gblk.spr.move((bx+PALETTE_WIDTH, by+20))
# Look to see if we can dock the current stack.
self._snap_to_dock()
self._check_collapsibles(blk)
for gblk in self.drag_group:
if gblk.status != 'collapsed':
gblk.spr.set_layer(BLOCK_LAYER)
self.drag_group = None
# Find the block we clicked on and process it.
if self.block_operation == 'click':
self._click_block(x, y)
def _move_turtle(self, x, y):
""" Move the selected turtle to (x, y). """
(cx, cy) = self.canvas.canvas.get_xy()
self.canvas.xcor = x - cx
self.canvas.ycor = y + cy
self.canvas.move_turtle()
if self.running_sugar:
self.display_coordinates()
self.selected_turtle.spr.set_layer(TURTLE_LAYER)
def _click_block(self, x, y):
""" Click block """
blk = self.block_list.spr_to_block(self.selected_spr)
if blk is None:
return
self.selected_blk = blk
if blk.name == 'number' or blk.name == 'string':
self.saved_string = blk.spr.labels[0]
blk.spr.labels[0] += CURSOR
elif blk.name in BOX_STYLE_MEDIA:
self._import_from_journal(self.selected_blk)
if blk.name == 'journal' and self.running_sugar:
self._load_description_block(blk)
elif blk.name == 'identity2' or blk.name == 'hspace':
group = find_group(blk)
if hide_button_hit(blk.spr, x, y):
dx = blk.reset_x()
elif show_button_hit(blk.spr, x, y):
dx = 20
blk.expand_in_x(dx)
else:
dx = 0
for gblk in group:
if gblk != blk:
gblk.spr.move_relative((dx * blk.scale, 0))
elif blk.name == 'vspace':
group = find_group(blk)
if hide_button_hit(blk.spr, x, y):
dy = blk.reset_y()
elif show_button_hit(blk.spr, x, y):
dy = 20
blk.expand_in_y(dy)
else:
dy = 0
for gblk in group:
if gblk != blk:
gblk.spr.move_relative((0, dy * blk.scale))
grow_stack_arm(find_sandwich_top(blk))
elif blk.name in EXPANDABLE or blk.name == 'nop':
if show_button_hit(blk.spr, x, y):
n = len(blk.connections)
group = find_group(blk.connections[n-1])
if blk.name == 'myfunc1arg':
blk.spr.labels[1] = 'f(x, y)'
blk.spr.labels[2] = ' '
dy = blk.add_arg()
blk.primitive = 'myfunction2'
blk.name = 'myfunc2arg'
elif blk.name == 'myfunc2arg':
blk.spr.labels[1] = 'f(x, y, z)'
dy = blk.add_arg(False)
blk.primitive = 'myfunction3'
blk.name = 'myfunc3arg'
elif blk.name == 'userdefined':
dy = blk.add_arg()
blk.primitive = 'userdefined2'
blk.name = 'userdefined2args'
elif blk.name == 'userdefined2args':
dy = blk.add_arg(False)
blk.primitive = 'userdefined3'
blk.name = 'userdefined3args'
else:
dy = blk.add_arg()
for gblk in group:
gblk.spr.move_relative((0, dy))
blk.connections.append(blk.connections[n-1])
argname = blk.docks[n-1][0]
argvalue = DEFAULTS[blk.name][len(DEFAULTS[blk.name])-1]
argblk = Block(self.block_list, self.sprite_list, argname,
0, 0, 'block', [argvalue], self.block_scale)
argdock = argblk.docks[0]
(bx, by) = blk.spr.get_xy()
nx = bx + blk.docks[n - 1][2] - argdock[2]
ny = by + blk.docks[n - 1][3] - argdock[3]
argblk.spr.move((nx, ny))
argblk.spr.set_layer(TOP_LAYER)
argblk.connections = [blk, None]
blk.connections[n - 1] = argblk
grow_stack_arm(find_sandwich_top(blk))
elif blk.name in PYTHON_SKIN and self.myblock == None:
self._import_py()
else:
self._run_stack(blk)
elif blk.name in COLLAPSIBLE:
top = find_sandwich_top(blk)
if collapsed(blk):
restore_stack(top)
elif top is not None:
collapse_stack(top)
else:
self._run_stack(blk)
def _check_collapsibles(self, blk):
""" Check the state of collapsible blocks upon change in dock state. """
group = find_group(blk)
for gblk in group:
if gblk.name in COLLAPSIBLE:
if collapsed(gblk):
gblk.svg.set_show(True)
gblk.svg.set_hide(False)
reset_stack_arm(find_sandwich_top(gblk))
elif collapsible(gblk):
gblk.svg.set_hide(True)
gblk.svg.set_show(False)
grow_stack_arm(find_sandwich_top(gblk))
else:
gblk.svg.set_hide(False)
gblk.svg.set_show(False)
# Ouch: When you tear off the sandwich bottom, you
# no longer have access to the group with the sandwich top
# so check them all.
for b in self.just_blocks():
if b.name in ['sandwichtop', 'sandwichtop_no_label']:
if find_sandwich_bottom(b) is None:
reset_stack_arm(b)
gblk.refresh()
def _run_stack(self, blk):
""" 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:
gobject.idle_add(self.lc.doevalstep)
else:
while self.lc.doevalstep():
pass
def _snap_to_dock(self):
""" Snap a block to the dock of another block. """
my_block = self.drag_group[0]
d = 200
for my_dockn in range(len(my_block.docks)):
for your_block in self.just_blocks():
# don't link to a block to which you're already connected
if your_block in self.drag_group:
continue
# check each dock of your_block for a possible connection
for your_dockn in range(len(your_block.docks)):
this_xy = dock_dx_dy(your_block, your_dockn,
my_block, my_dockn)
if magnitude(this_xy) > d:
continue
d = magnitude(this_xy)
best_xy = this_xy
best_you = your_block
best_your_dockn = your_dockn
best_my_dockn = my_dockn
if d < 200:
if not arithmetic_check(my_block, best_you, best_my_dockn,
best_your_dockn):
return
for blk in self.drag_group:
(sx, sy) = blk.spr.get_xy()
blk.spr.move((sx + best_xy[0], sy + best_xy[1]))
# If there was already a block docked there, move it to the trash.
blk_in_dock = best_you.connections[best_your_dockn]
if blk_in_dock is not None:
blk_in_dock.connections[0] = None
self._put_in_trash(blk_in_dock)
best_you.connections[best_your_dockn] = my_block
if my_block.connections is not None:
my_block.connections[best_my_dockn] = best_you
def _import_from_journal(self, blk):
""" Import a file from the Sugar Journal """
if self.running_sugar:
chooser = ObjectChooser('Choose image', self.parent,
gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT)
try:
result = chooser.run()
if result == gtk.RESPONSE_ACCEPT:
dsobject = chooser.get_selected_object()
self._update_media_icon(blk, dsobject, dsobject.object_id)
dsobject.destroy()
finally:
chooser.destroy()
del chooser
else:
fname, self.load_save_folder = \
get_load_name('.*', self.load_save_folder)
if fname is None:
return
self._update_media_icon(blk, fname)
def _load_description_block(self, blk):
""" Look for a corresponding description block """
if blk == None or blk.name != 'journal' or len(blk.values) == 0 or\
blk.connections[0] is None:
return
_blk = blk.connections[0]
dblk = find_blk_below(_blk, 'description')
# Autoupdate the block if it is empty
if dblk != None and (len(dblk.values) == 0 or dblk.values[0] == None):
self._update_media_icon(dblk, None, blk.values[0])
def _update_media_icon(self, blk, name, value=''):
""" Update the icon on a 'loaded' media block. """
if blk.name == 'journal':
self._load_image_thumb(name, blk)
elif blk.name == 'audio':
self._block_skin('audioon', blk)
else:
self._block_skin('descriptionon', blk)
if value == '':
value = name
if len(blk.values) > 0:
blk.values[0] = value
else:
blk.values.append(value)
blk.spr.set_label(' ')
def _load_image_thumb(self, picture, blk):
""" Replace icon with a preview image. """
pixbuf = None
self._block_skin('descriptionon', blk)
if self.running_sugar:
w, h = calc_image_size(blk.spr)
pixbuf = get_pixbuf_from_journal(picture, w, h)
else:
if movie_media_type(picture):
self._block_skin('journalon', blk)
elif audio_media_type(picture):
self._block_skin('audioon', blk)
blk.name = 'audio'
elif image_media_type(picture):
w, h = calc_image_size(blk.spr)
pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(picture, w, h)
else:
blk.name = 'description'
if pixbuf is not None:
x, y = self._calc_image_offset('', blk.spr)
blk.set_image(pixbuf, x, y)
self._resize_skin(blk)
def _disconnect(self, blk):
""" Disconnect block from stack above it. """
if blk.connections[0] == None:
return
if collapsed(blk):
return
blk2 = blk.connections[0]
blk2.connections[blk2.connections.index(blk)] = None
blk.connections[0] = None
def _keypress_cb(self, area, event):
""" Keyboard """
keyname = gtk.gdk.keyval_name(event.keyval)
keyunicode = gtk.gdk.keyval_to_unicode(event.keyval)
if event.get_state()>k.gdk.MOD1_MASK:
alt_mask = True
alt_flag = 'T'
else:
alt_mask = False
alt_flag = 'F'
self._key_press(alt_mask, keyname, keyunicode)
return keyname
def _key_press(self, alt_mask, keyname, keyunicode):
if keyname is None:
return False
self.keypress = keyname
# First, process Alt keys.
if alt_mask and self.selected_blk is not None:
if keyname == "p":
self.hideshow_button()
elif keyname == 'q':
exit()
return True
# Process keyboard input for 'number' blocks
if self.selected_blk is not None and \
self.selected_blk.name == 'number':
self._process_numeric_input(keyname)
return True
# Process keyboard input for 'string' blocks
elif self.selected_blk is not None and \
self.selected_blk.name == 'string':
self.process_alphanumeric_input(keyname, keyunicode)
if self.selected_blk is not None:
self.selected_blk.resize()
return True
# Otherwise, use keyboard input to move blocks or turtles
else:
self._process_keyboard_commands(keyname)
if self.selected_blk is None:
return False
def _process_numeric_input(self, keyname):
''' Make sure numeric input is valid. '''
oldnum = self.selected_blk.spr.labels[0].replace(CURSOR, '')
if len(oldnum) == 0:
oldnum = '0'
if keyname == 'minus':
if oldnum == '0':
newnum = '-'
elif oldnum[0] != '-':
newnum = '-' + oldnum
else:
newnum = oldnum
elif keyname == 'period' and '.' not in oldnum:
newnum = oldnum + '.'
elif keyname == 'BackSpace':
if len(oldnum) > 0:
newnum = oldnum[:len(oldnum)-1]
else:
newnum = ''
elif keyname in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']:
if oldnum == '0':
newnum = keyname
else:
newnum = oldnum + keyname
elif keyname == 'Return':
self._unselect_block()
return
else:
newnum = oldnum
if newnum == '.':
newnum = '0.'
if len(newnum) > 0 and newnum != '-':
try:
float(newnum)
except ValueError, e:
newnum = oldnum
self.selected_blk.spr.set_label(newnum + CURSOR)
def process_alphanumeric_input(self, keyname, keyunicode):
""" Make sure alphanumeric input is properly parsed. """
if len(self.selected_blk.spr.labels[0]) > 0:
c = self.selected_blk.spr.labels[0].count(CURSOR)
if c == 0:
oldleft = self.selected_blk.spr.labels[0]
oldright = ''
elif len(self.selected_blk.spr.labels[0]) == 1:
oldleft = ''
oldright = ''
else:
try: # Why are getting a ValueError on occasion?
oldleft, oldright = \
self.selected_blk.spr.labels[0].split(CURSOR)
except ValueError:
_logger.debug("[%s]" % self.selected_blk.spr.labels[0])
oldleft = self.selected_blk.spr.labels[0]
oldright = ''
else:
oldleft = ''
oldright = ''
newleft = oldleft
if keyname in ['Shift_L', 'Shift_R', 'Control_L', 'Caps_Lock', \
'Alt_L', 'Alt_R', 'KP_Enter', 'ISO_Level3_Shift']:
keyname = ''
keyunicode = 0
# Hack until I sort out input and unicode and dead keys,
if keyname[0:5] == 'dead_':
self.dead_key = keyname
keyname = ''
keyunicode = 0
if keyname == 'space':
keyunicode = 32
elif keyname == 'Tab':
keyunicode = 9
if keyname == 'BackSpace':
if len(oldleft) > 1:
newleft = oldleft[:len(oldleft)-1]
else:
newleft = ''
elif keyname == 'Home':
oldright = oldleft+oldright
newleft = ''
elif keyname == 'Left':
if len(oldleft) > 0:
oldright = oldleft[len(oldleft)-1:]+oldright
newleft = oldleft[:len(oldleft)-1]
elif keyname == 'Right':
if len(oldright) > 0:
newleft = oldleft + oldright[0]
oldright = oldright[1:]
elif keyname == 'End':
newleft = oldleft+oldright
oldright = ''
elif keyname == 'Return':
newleft = oldleft+RETURN
elif keyname == 'Down':
self._unselect_block()
return
elif keyname == 'Up' or keyname == 'Escape': # Restore previous state
self.selected_blk.spr.set_label(self.saved_string)
self._unselect_block()
return
else:
if self.dead_key is not '':
keyunicode = \
DEAD_DICTS[DEAD_KEYS.index(self.dead_key[5:])][keyname]
self.dead_key = ''
if keyunicode > 0:
if unichr(keyunicode) != '\x00':
newleft = oldleft+unichr(keyunicode)
else:
newleft = oldleft
elif keyunicode == -1: # clipboard text
if keyname == '\n':
newleft = oldleft+RETURN
else:
newleft = oldleft+keyname
self.selected_blk.spr.set_label("%s%s%s" % (newleft, CURSOR, oldright))
def _process_keyboard_commands(self, keyname):
""" Use the keyboard to move blocks and turtle """
mov_dict = {'KP_Up':[0, 10], 'j':[0, 10], 'Up':[0, 10],
'KP_Down':[0, -10], 'k':[0, -10], 'Down':[0, -10],
'KP_Left':[-10, 0], 'h':[-10, 0], 'Left':[-10, 0],
'KP_Right':[10, 0], 'l':[10, 0], 'Right':[10, 0],
'KP_Page_Down':[0, 0], 'KP_Page_Up':[0, 0], 'KP_End':[0, 0],
'KP_Home':[-1, -1], 'Return':[-1, -1], 'Esc':[0, 0]}
if not mov_dict.has_key(keyname):
return
if keyname == 'KP_End':
self.run_button(0)
elif self.selected_spr is not None:
blk = self.block_list.spr_to_block(self.selected_spr)
tur = self.turtles.spr_to_turtle(self.selected_spr)
if not self.lc.running and blk is not None:
if keyname == 'Return' or keyname == 'KP_Page_Up':
(x, y) = blk.spr.get_xy()
self._click_block(x, y)
elif keyname == 'KP_Page_Down':
if self.drag_group == None:
self.drag_group = find_group(blk)
for gblk in self.drag_group:
gblk.spr.hide()
self.drag_group = None
else:
self._jog_block(blk, mov_dict[keyname][0],
mov_dict[keyname][1])
elif tur is not None:
self._jog_turtle(mov_dict[keyname][0], mov_dict[keyname][1])
return True
def _jog_turtle(self, dx, dy):
""" Jog turtle """
if dx == -1 and dy == -1:
self.canvas.xcor = 0
self.canvas.ycor = 0
else:
self.canvas.xcor += dx
self.canvas.ycor += dy
self.canvas.move_turtle()
self.display_coordinates()
self.selected_turtle = None
def _jog_block(self, blk, dx, dy):
""" Jog block """
if collapsed(blk):
return
self.drag_group = find_group(blk)
# check to see if any block ends up with a negative x
for blk in self.drag_group:
(sx, sy) = blk.spr.get_xy()
if sx+dx < 0:
dx += -(sx + dx)
# move the stack
for blk in self.drag_group:
(sx, sy) = blk.spr.get_xy()
blk.spr.move((sx + dx, sy - dy))
self._snap_to_dock()
self.drag_group = None
def _number_check(self):
""" Make sure a 'number' block contains a number. """
n = self.selected_blk.spr.labels[0].replace(CURSOR, '')
if n in ['-', '.', '-.']:
n = 0
if n is not None:
try:
f = float(n)
if f > 1000000:
n = 1
self.showlabel("#overflowerror")
elif f < -1000000:
n = -1
self.showlabel("#overflowerror")
except ValueError:
n = 0
self.showlabel("#notanumber")
else:
n = 0
self.selected_blk.spr.set_label(n)
self.selected_blk.values[0] = n
def _string_check(self):
s = self.selected_blk.spr.labels[0].replace(CURSOR, '')
self.selected_blk.spr.set_label(s)
self.selected_blk.values[0] = s.replace(RETURN, "\12")
def load_python_code(self):
""" Load Python code from a file """
fname, self.load_save_folder = get_load_name('.py',
self.load_save_folder)
if fname == None:
return
f = open(fname, 'r')
self.myblock = f.read()
f.close()
def _import_py(self):
""" Import Python code into a block """
if self.running_sugar:
self.activity.import_py()
else:
self.load_python_code()
self.set_userdefined()
def new_project(self):
""" Start a new project """
stop_logo(self)
self._loaded_project = ""
# Put current project in the trash.
while len(self.just_blocks()) > 0:
blk = self.just_blocks()[0]
top = find_top_block(blk)
self._put_in_trash(top)
self.canvas.clearscreen()
self.save_file_name = None
def is_new_project(self):
""" Is this a new project or was a old project loaded from a file? """
return self._loaded_project == ""
def project_has_changed(self):
""" WARNING: order of JSON serialized data may have changed. """
try:
f = open(self._loaded_project, 'r')
saved_project_data = f.read()
f.close()
except:
_logger.debug("problem loading saved project data from %s" %\
(self._loaded_project))
saved_project_data = ""
current_project_data = data_to_string(self.assemble_data_to_save())
return saved_project_data != current_project_data
def load_files(self, ta_file, create_new_project=True):
""" Load a project from a file """
if create_new_project:
self.new_project()
self._check_collapsibles(self.process_data(data_from_file(ta_file)))
self._loaded_prokect = ta_file
def load_file(self, create_new_project=True):
_file_name, self.load_save_folder = get_load_name('.ta',
self.load_save_folder)
if _file_name == None:
return
if _file_name[-3:] == '.ta':
_file_name = _file_name[0:-3]
self.load_files(_file_name+'.ta', create_new_project)
if create_new_project:
self.save_file_name = os.path.basename(_file_name)
if self.running_sugar:
self.activity.metadata['title'] = os.path.split(_file_name)[1]
def _found_a_turtle(self, blk):
""" Either [-1, 'turtle', ...] or [-1, ['turtle', key], ...] """
if blk[1] == 'turtle':
self.load_turtle(blk)
return True
elif type(blk[1]) == list and blk[1][0] == 'turtle':
self.load_turtle(blk, blk[1][1])
return True
elif type(blk[1]) == tuple:
_btype, _key = blk[1]
if _btype == 'turtle':
self.load_turtle(blk, _key)
return True
return False
def load_turtle(self, blk, key=1):
""" Restore a turtle from its saved state """
tid, name, xcor, ycor, heading, color, shade, pensize = blk
self.canvas.set_turtle(key)
self.canvas.setxy(xcor, ycor)
self.canvas.seth(heading)
self.canvas.setcolor(color)
self.canvas.setshade(shade)
self.canvas.setpensize(pensize)
def load_block(self, b, offset=0):
""" Restore individual blocks from saved state """
# A block is saved as: (i, (btype, value), x, y, (c0,... cn))
# The x, y position is saved/loaded for backward compatibility
btype, value = b[1], None
if type(btype) == tuple:
btype, value = btype
elif type(btype) == list:
btype, value = btype[0], btype[1]
if btype in CONTENT_BLOCKS or btype in COLLAPSIBLE:
if btype == 'number':
try:
values = [round_int(value)]
except ValueError:
values = [0]
elif btype in COLLAPSIBLE:
if value is not None:
values = [int(value)]
else:
values = []
else:
values = [value]
else:
values = []
if btype in OLD_DOCK:
check_dock = True
else:
check_dock = False
if OLD_NAMES.has_key(btype):
btype = OLD_NAMES[btype]
blk = Block(self.block_list, self.sprite_list, btype,
b[2] + self.canvas.cx + offset,
b[3] + self.canvas.cy + offset,
'block', values, self.block_scale)
# Some blocks get transformed.
if btype == 'string' and blk.spr is not None:
blk.spr.set_label(blk.values[0].replace('\n', RETURN))
elif btype == 'start': # block size is saved in start block
if value is not None:
self.block_scale = value
elif btype in EXPANDABLE or btype == 'nop':
if btype == 'vspace':
if value is not None:
blk.expand_in_y(value)
elif btype == 'hspace' or btype == 'identity2':
if value is not None:
blk.expand_in_x(value)
elif btype == 'templatelist' or btype == 'list':
for i in range(len(b[4])-4):
blk.add_arg()
elif btype == 'myfunc2arg' or btype == 'myfunc3arg' or\
btype == 'userdefined2args' or btype == 'userdefined3args':
blk.add_arg()
if btype == 'myfunc3arg' or btype == 'userdefined3args':
blk.add_arg(False)
if btype in PYTHON_SKIN:
if self.nop == 'pythonloaded':
self._block_skin('pythonon', blk)
else:
self._block_skin('pythonoff', blk)
elif btype in BOX_STYLE_MEDIA and blk.spr is not None:
if len(blk.values) == 0 or blk.values[0] == 'None' or\
blk.values[0] == None:
self._block_skin(btype+'off', blk)
elif btype == 'audio' or btype == 'description':
self._block_skin(btype+'on', blk)
elif self.running_sugar:
try:
dsobject = datastore.get(blk.values[0])
if not movie_media_type(dsobject.file_path[-4:]):
w, h, = calc_image_size(blk.spr)
pixbuf = get_pixbuf_from_journal(dsobject, w, h)
if pixbuf is not None:
x, y = self._calc_image_offset('', blk.spr)
blk.set_image(pixbuf, x, y)
else:
self._block_skin('journalon', blk)
dsobject.destroy()
except:
try:
w, h, = calc_image_size(blk.spr)
pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(
blk.values[0], w, h)
x, y = self._calc_image_offset('', blk.spr)
blk.set_image(pixbuf, x, y)
except:
_logger.debug("Warning: Couldn't open dsobject (%s)" % \
(blk.values[0]))
self._block_skin('journaloff', blk)
else:
if not movie_media_type(blk.values[0][-4:]):
try:
w, h, = calc_image_size(blk.spr)
pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(
blk.values[0], w, h)
x, y = self._calc_image_offset('', blk.spr)
blk.set_image(pixbuf, x, y)
except:
self._block_skin('journaloff', blk)
else:
self._block_skin('journalon', blk)
blk.spr.set_label(' ')
blk.resize()
if self.interactive_mode:
blk.spr.set_layer(BLOCK_LAYER)
if check_dock:
blk.connections = 'check'
return blk
def load_start(self, ta_file=None):
""" Start a new project with a 'start' brick """
if ta_file is None:
self.process_data([[0, "start", PALETTE_WIDTH + 20,
self.toolbar_offset+PALETTE_HEIGHT + 20,
[None, None]]])
else:
self.process_data(data_from_file(ta_file))
def save_file(self, _file_name=None):
""" Start a project to a file """
if self.save_folder is not None:
self.load_save_folder = self.save_folder
if _file_name is None:
_file_name, self.load_save_folder = get_save_name('.ta',
self.load_save_folder, self.save_file_name)
if _file_name is None:
return
if _file_name[-3:] == '.ta':
_file_name = _file_name[0:-3]
data_to_file(self.assemble_data_to_save(), _file_name + '.ta')
self.save_file_name = os.path.basename(_file_name)
if not self.running_sugar:
self.save_folder = self.load_save_folder
def assemble_data_to_save(self, save_turtle=True, save_project=True):
""" Pack the project (or stack) into a data stream to be serialized """
_data = []
_blks = []
if save_project:
_blks = self.just_blocks()
else:
if self.selected_blk is None:
return []
_blks = find_group(find_top_block(self.selected_blk))
for _i, _blk in enumerate(_blks):
_blk.id = _i
for _blk in _blks:
if _blk.name in CONTENT_BLOCKS or _blk.name in COLLAPSIBLE:
if len(_blk.values) > 0:
_name = (_blk.name, _blk.values[0])
else:
_name = (_blk.name)
elif _blk.name in EXPANDABLE:
_ex, _ey = _blk.get_expand_x_y()
if _ex > 0:
_name = (_blk.name, _ex)
elif _ey > 0:
_name = (_blk.name, _ey)
else:
_name = (_blk.name, 0)
elif _blk.name == 'start': # save block_size in start block
_name = (_blk.name, self.block_scale)
else:
_name = (_blk.name)
if hasattr(_blk, 'connections'):
connections = [get_id(_cblk) for _cblk in _blk.connections]
else:
connections = None
(_sx, _sy) = _blk.spr.get_xy()
# Add a slight offset for copy/paste
if not save_project:
_sx += 20
_sy += 20
_data.append((_blk.id, _name, _sx-self.canvas.cx,
_sy-self.canvas.cy, connections))
if save_turtle:
for _turtle in iter(self.turtles.dict):
self.canvas.set_turtle(_turtle)
_data.append((-1, ['turtle', _turtle],
self.canvas.xcor, self.canvas.ycor,
self.canvas.heading,
self.canvas.color, self.canvas.shade,
self.canvas.pensize))
return _data
def display_coordinates(self):
""" Display the coordinates of the current turtle on the toolbar """
x = round_int(self.canvas.xcor/self.coord_scale)
y = round_int(self.canvas.ycor/self.coord_scale)
h = round_int(self.canvas.heading)
if self.running_sugar:
self.activity.coordinates_label.set_text("%s: %d %s: %d %s: %d" % (
_("xcor"), x, _("ycor"), y, _("heading"), h))
self.activity.coordinates_label.show()
elif self.interactive_mode:
self.win.set_title("%s — %s: %d %s: %d %s: %d" % (_("Turtle Art"),
_("xcor"), x, _("ycor"), y, _("heading"), h))
def showlabel(self, shp, label = ''):
""" Display a message on a status block """
if not self.interactive_mode:
_logger.debug(label)
return
if shp == 'syntaxerror' and str(label) != '':
if self.status_shapes.has_key(str(label)[1:]):
shp = str(label)[1:]
label = ''
else:
shp = 'status'
elif shp[0] == '#':
shp = shp[1:]
label = ''
self.status_spr.set_shape(self.status_shapes[shp])
self.status_spr.set_label(str(label))
self.status_spr.set_layer(STATUS_LAYER)
if shp == 'info':
self.status_spr.move((PALETTE_WIDTH, self.height-400))
else:
self.status_spr.move((PALETTE_WIDTH, self.height-200))
def calc_position(self, template):
""" Relative placement of portfolio objects (depreciated) """
w, h, x, y, dx, dy = TEMPLATES[template]
x *= self.canvas.width
y *= self.canvas.height
w *= (self.canvas.width-x)
h *= (self.canvas.height-y)
dx *= w
dy *= h
return(w, h, x, y, dx, dy)
def save_for_upload(self, _file_name):
""" Grab the current canvas and save it for upload """
if _file_name[-3:] == '.ta':
_file_name = _file_name[0:-3]
data_to_file(self.assemble_data_to_save(), _file_name + '.ta')
save_picture(self.canvas, _file_name + '.png')
ta_file = _file_name + '.ta'
image_file = _file_name + '.png'
return ta_file, image_file
def save_as_image(self, name="", svg=False, pixbuf=None):
""" Grab the current canvas and save it. """
if not self.interactive_mode:
save_picture(self.canvas, name[:-3] + ".png")
return
"""
self.color_map = self.window.get_colormap()
new_pix = pixbuf.get_from_drawable(self.window, self.color_map,
0, 0, 0, 0,
self.width, self.height)
new_pix.save(name[:-3] + ".png", "png")
"""
if self.running_sugar:
if svg:
if len(name) == 0:
filename = "ta.svg"
else:
filename = name+".svg"
else:
if len(name) == 0:
filename = "ta.png"
else:
filename = name+".png"
datapath = get_path(self.activity, 'instance')
elif len(name) == 0:
name = "ta"
if self.save_folder is not None:
self.load_save_folder = self.save_folder
if svg:
filename, self.load_save_folder = get_save_name('.svg',
self.load_save_folder,
name)
else:
filename, self.load_save_folder = get_save_name('.png',
self.load_save_folder,
name)
datapath = self.load_save_folder
else:
datapath = os.getcwd()
if svg:
filename = name+".svg"
else:
filename = name+".png"
if filename is None:
return
file_path = os.path.join(datapath, filename)
if svg:
if self.svg_string == '':
return
save_svg(self.svg_string, file_path)
self.svg_string = ''
else:
save_picture(self.canvas, file_path)
# keep a log of the saved pictures for export to HTML
self.saved_pictures.append(file_path)
if self.running_sugar:
dsobject = datastore.create()
if len(name) == 0:
dsobject.metadata['title'] = "%s %s" % (
self.activity.metadata['title'], _("image"))
else:
dsobject.metadata['title'] = name
dsobject.metadata['icon-color'] = profile.get_color().to_string()
if svg:
dsobject.metadata['mime_type'] = 'image/svg+xml'
else:
dsobject.metadata['mime_type'] = 'image/png'
dsobject.set_file_path(file_path)
datastore.write(dsobject)
dsobject.destroy()
def just_blocks(self):
""" Filter out 'proto', 'trash', and 'deleted' blocks """
just_blocks_list = []
for _blk in self.block_list.list:
if _blk.type == 'block':
just_blocks_list.append(_blk)
return just_blocks_list
def _width_and_height(self, blk):
""" What are the width and height of a stack? """
minx = 10000
miny = 10000
maxx = -10000
maxy = -10000
for gblk in find_group(blk):
(x, y) = gblk.spr.get_xy()
w, h = gblk.spr.get_dimensions()
if x < minx:
minx = x
if y < miny:
miny = y
if x + w > maxx:
maxx = x + w
if y + h > maxy:
maxy = y + h
return(maxx - minx, maxy - miny)
# Utilities related to putting a image 'skin' on a block
def _calc_image_offset(self, name, spr, iw=0, ih=0):
""" Calculate the postion for placing an image onto a sprite. """
_l, _t = spr.label_left_top()
if name == '':
return _l, _t
_w = spr.label_safe_width()
_h = spr.label_safe_height()
if iw == 0:
iw = self.media_shapes[name].get_width()
ih = self.media_shapes[name].get_height()
return int(_l + (_w - iw)/2), int(_t + (_h - ih)/2)
def _calc_w_h(self, name, spr):
""" Calculate new image size """
target_w = spr.label_safe_width()
target_h = spr.label_safe_height()
if name == '':
return target_w, target_h
image_w = self.media_shapes[name].get_width()
image_h = self.media_shapes[name].get_height()
scale_factor = float(target_w)/image_w
new_w = target_w
new_h = image_h*scale_factor
if new_h > target_h:
scale_factor = float(target_h)/new_h
new_h = target_h
new_w = target_w*scale_factor
return int(new_w), int(new_h)
def _proto_skin(self, name, n, i):
""" Utility for calculating proto skin images """
x, y = self._calc_image_offset(name, self.palettes[n][i].spr)
self.palettes[n][i].spr.set_image(self.media_shapes[name], 1, x, y)
def _block_skin(self, name, blk):
""" Some blocks get a skin """
x, y = self._calc_image_offset(name, blk.spr)
blk.set_image(self.media_shapes[name], x, y)
self._resize_skin(blk)
def _resize_skin(self, blk):
""" Resize the 'skin' when block scale changes. """
if blk.name in PYTHON_SKIN:
w, h = self._calc_w_h('pythonoff', blk.spr)
x, y = self._calc_image_offset('pythonoff', blk.spr, w, h)
elif blk.name == 'journal':
if len(blk.values) == 1 and blk.values[0] is not None:
w, h = self._calc_w_h('', blk.spr)
x, y = self._calc_image_offset('journaloff', blk.spr, w, h)
else:
w, h = self._calc_w_h('journaloff', blk.spr)
x, y = self._calc_image_offset('journaloff', blk.spr, w, h)
else:
w, h = self._calc_w_h('descriptionoff', blk.spr)
x, y = self._calc_image_offset('descriptionoff', blk.spr, w, h)
blk.scale_image(x, y, w, h)
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