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# -*- coding: utf-8 -*-
#Copyright (c) 2011 Walter Bender
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# You should have received a copy of the GNU General Public License
# along with this library; if not, write to the Free Software
# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
import gtk
import cairo
from random import uniform
from gettext import gettext as _
import logging
_logger = logging.getLogger('yupana-activity')
try:
from sugar.graphics import style
GRID_CELL_SIZE = style.GRID_CELL_SIZE
except ImportError:
GRID_CELL_SIZE = 0
from sprites import Sprites, Sprite
# Grid dimensions must be even
TEN = 10
SIX = 6
DOT_SIZE = 20
class Yupana():
def __init__(self, canvas, parent=None, colors=['#A0FFA0', '#FF8080']):
self._activity = parent
self._colors = ['#FFFFFF']
self._colors.append(colors[0])
self._colors.append(colors[1])
self._colors.append('#000000')
self._canvas = canvas
if parent is not None:
parent.show_all()
self._parent = parent
self._canvas.set_flags(gtk.CAN_FOCUS)
self._canvas.add_events(gtk.gdk.BUTTON_PRESS_MASK)
self._canvas.connect("expose-event", self._expose_cb)
self._canvas.connect("button-press-event", self._button_press_cb)
self._width = gtk.gdk.screen_width()
self._height = gtk.gdk.screen_height() - (GRID_CELL_SIZE * 1.5)
self._scale = self._width / (20 * DOT_SIZE * 1.1)
self._dot_size = int(DOT_SIZE * self._scale)
self._space = int(self._dot_size / 5.)
self.we_are_sharing = False
self._sum = 0
self._mode = 'ten'
# Generate the sprites we'll need...
self._sprites = Sprites(self._canvas)
Sprite(self._sprites, 0, 0, self._box(self._width, self._height,
color=colors[1]))
self._dots = []
for p in range(SIX):
y = self._height - self._space
Sprite(self._sprites, 0, y, self._line(vertical=False))
x = int(p * self._width / 6) + self._space
y -= self._dot_size
for d in range(3): # bottom of fives row
self._dots.append(
Sprite(self._sprites, x, y,
self._new_dot(self._colors[0])))
self._dots[-1].type = 0 # not set
x += self._dot_size + self._space
x = int((p * self._width / 6.) + self._dot_size / 2.) + self._space
y -= self._dot_size + self._space
for d in range(2): # top of fives row
self._dots.append(
Sprite(self._sprites, x, y,
self._new_dot(self._colors[0])))
self._dots[-1].type = 0 # not set
x += self._dot_size + self._space
y -= self._dot_size
Sprite(self._sprites, 0, y, self._line(vertical=False))
x = int((p * self._width / 6.) + self._dot_size / 2.) + self._space
y -= self._dot_size
for d in range(2): # bottom of threes row
self._dots.append(
Sprite(self._sprites, x, y,
self._new_dot(self._colors[0])))
self._dots[-1].type = 0 # not set
x += self._dot_size + self._space
x = int((p * self._width / 6.) + self._dot_size) + self._space
y -= self._dot_size + self._space
for d in range(1): # top of threes row
self._dots.append(
Sprite(self._sprites, x, y,
self._new_dot(self._colors[0])))
self._dots[-1].type = 0 # not set
x += self._dot_size + self._space
y -= self._dot_size
Sprite(self._sprites, 0, y, self._line(vertical=False))
x = int((p * self._width / 6.) + self._dot_size / 2.) + self._space
y -= self._dot_size
for d in range(2): # twos row
self._dots.append(
Sprite(self._sprites, x, y,
self._new_dot(self._colors[0])))
self._dots[-1].type = 0 # not set
x += self._dot_size + self._space
y -= self._dot_size
Sprite(self._sprites, 0, y, self._line(vertical=False))
x = int((p * self._width / 6.) + self._dot_size) + self._space
y -= self._dot_size
for d in range(1): # ones row
self._dots.append(
Sprite(self._sprites, x, y,
self._new_dot(self._colors[0])))
self._dots[-1].type = 0 # not set
x += self._dot_size + self._space
y -= self._dot_size
Sprite(self._sprites, 0, y, self._line(vertical=False))
for p in range(SIX - 1):
x = int((p + 1) * self._width / 6)
Sprite(self._sprites, x - 1, y,
self._line(vertical=True))
self._number_box = Sprite(self._sprites, 0, 0, self._box(
self._width, 3 * self._dot_size, color=colors[1]))
self._number_box.set_label_attributes(72)
# and initialize a few variables we'll need.
self._all_clear()
def _all_clear(self):
''' Things to reinitialize when starting up a new yupana. '''
self._sum = 0
for dot in self._dots:
if dot.type > 0:
dot.type = 0
dot.set_shape(self._new_dot(self._colors[0]))
dot.set_label('')
self._set_label(str(self._sum))
def _initiating(self):
return self._activity.initiating
def new_yupana(self, mode=None):
''' Create a new yupana. '''
self._all_clear()
if mode is not None:
self._mode = mode
if self.we_are_sharing:
_logger.debug('sending a new yupana')
self._parent.send_new_yupana()
def restore_yupana(self, dot_list):
''' Restore a yumpana from the Journal or share '''
for i, dot in enumerate(dot_list):
self._dots[i].type = dot
self._dots[i].set_shape(self._new_dot(
self._colors[self._dots[i].type]))
if self._dots[i].type == 1:
self._sum += self._calc_bead_value(i)
self._set_label(str(self._sum))
def save_yupana(self):
''' Return dot list and orientation for saving to Journal or
sharing '''
dot_list = []
for dot in self._dots:
dot_list.append(dot.type)
return [self._mode, dot_list]
def _set_label(self, string):
''' Set the label in the toolbar or the window frame. '''
self._number_box.set_label(string)
# self._activity.status.set_label(string)
def _button_press_cb(self, win, event):
win.grab_focus()
x, y = map(int, event.get_coords())
spr = self._sprites.find_sprite((x, y))
if spr == None:
return
if spr.type is not None:
spr.type += 1
spr.type %= 2
spr.set_shape(self._new_dot(self._colors[spr.type]))
if self.we_are_sharing:
_logger.debug('sending a click to the share')
self._parent.send_dot_click(self._dots.index(spr),
spr.type)
if spr.type == 1:
self._sum += self._calc_bead_value(self._dots.index(spr))
else:
self._sum -= self._calc_bead_value(self._dots.index(spr))
self._set_label(str(self._sum))
return True
def _calc_bead_value(self, i):
''' Calculate a bead value based on the index and the mode '''
e = 5 - i / (TEN + 1)
m = i % 11
if self._mode == 'ten':
return 10 ** e
elif self._mode == 'twenty':
if m in [7, 10]:
return 20 ** e
else:
return (20 ** e) * 2
else: # factor mode
if m in [10]:
return 10 ** e
elif m in [8, 9]:
return (10 ** e) * 2
elif m in [5, 6, 7]:
return (10 ** e) * 3
else:
return (10 ** e) * 5
def remote_button_press(self, dot, color):
''' Receive a button press from a sharer '''
self._dots[dot].type = color
self._dots[dot].set_shape(self._new_dot(self._colors[color]))
def set_sharing(self, share=True):
_logger.debug('enabling sharing')
self.we_are_sharing = share
def _grid_to_dot(self, pos):
''' calculate the dot index from a column and row in the grid '''
return pos[0] + pos[1] * TEN
def _dot_to_grid(self, dot):
''' calculate the grid column and row for a dot '''
return [dot % TEN, int(dot / TEN)]
def _expose_cb(self, win, event):
self.do_expose_event(event)
def do_expose_event(self, event):
''' Handle the expose-event by drawing '''
# Restrict Cairo to the exposed area
cr = self._canvas.window.cairo_create()
cr.rectangle(event.area.x, event.area.y,
event.area.width, event.area.height)
cr.clip()
# Refresh sprite list
self._sprites.redraw_sprites(cr=cr)
def _destroy_cb(self, win, event):
gtk.main_quit()
def _new_dot(self, color):
''' generate a dot of a color color '''
def darken(color):
''' return a darker color than color '''
gdk_fill_color = gtk.gdk.color_parse(self._fill)
gdk_fill_dark_color = gtk.gdk.Color(
int(gdk_fill_color.red * 0.5),
int(gdk_fill_color.green * 0.5),
int(gdk_fill_color.blue * 0.5))
return str(gdk_fill_dark_color)
self._dot_cache = {}
if not color in self._dot_cache:
self._stroke = color
self._fill = color
self._fill_dark = darken(color)
self._svg_width = self._dot_size
self._svg_height = self._dot_size
if color in ['#FFFFFF', '#000000']:
pixbuf = svg_str_to_pixbuf(
self._header() + \
self._circle(self._dot_size / 2., self._dot_size / 2.,
self._dot_size / 2.) + \
self._footer())
else:
pixbuf = svg_str_to_pixbuf(
self._header() + \
self._def(self._dot_size) + \
self._gradient(self._dot_size / 2., self._dot_size / 2.,
self._dot_size / 2.) + \
self._footer())
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,
self._svg_width, self._svg_height)
context = cairo.Context(surface)
context = gtk.gdk.CairoContext(context)
context.set_source_pixbuf(pixbuf, 0, 0)
context.rectangle(0, 0, self._svg_width, self._svg_height)
context.fill()
self._dot_cache[color] = surface
return self._dot_cache[color]
def _line(self, vertical=True):
''' Generate a center line '''
if vertical:
self._svg_width = 3
self._svg_height = self._dot_size * 10 + self._space * 2
return svg_str_to_pixbuf(
self._header() + \
self._rect(3, self._dot_size * 10 + self._space * 2, 0, 0) + \
self._footer())
else:
self._svg_width = self._width
self._svg_height = 3
return svg_str_to_pixbuf(
self._header() + \
self._rect(self._width, 3, 0, 0) + \
self._footer())
def _box(self, w, h, color='white'):
''' Generate a box '''
self._svg_width = w
self._svg_height = h
return svg_str_to_pixbuf(
self._header() + \
self._rect(self._svg_width, self._svg_height, 0, 0,
color=color) + \
self._footer())
def _header(self):
return '<svg\n' + 'xmlns:svg="http://www.w3.org/2000/svg"\n' + \
'xmlns="http://www.w3.org/2000/svg"\n' + \
'xmlns:xlink="http://www.w3.org/1999/xlink"\n' + \
'version="1.1"\n' + 'width="' + str(self._svg_width) + '"\n' + \
'height="' + str(self._svg_height) + '">\n'
def _rect(self, w, h, x, y, color='black'):
svg_string = ' <rect\n'
svg_string += ' width="%f"\n' % (w)
svg_string += ' height="%f"\n' % (h)
svg_string += ' rx="%f"\n' % (0)
svg_string += ' ry="%f"\n' % (0)
svg_string += ' x="%f"\n' % (x)
svg_string += ' y="%f"\n' % (y)
if color == 'black':
svg_string += 'style="fill:#000000;stroke:#000000;"/>\n'
elif color == 'white':
svg_string += 'style="fill:#ffffff;stroke:#ffffff;"/>\n'
else:
svg_string += 'style="fill:%s;stroke:%s;"/>\n' % (color, color)
return svg_string
def _circle(self, r, cx, cy):
return '<circle style="fill:' + str(self._fill) + ';stroke:' + \
str(self._stroke) + ';" r="' + str(r - 0.5) + '" cx="' + \
str(cx) + '" cy="' + str(cy) + '" />\n'
def _gradient(self, r, cx, cy):
return '<circle style="fill:url(#radialGradient3761);' + \
'fill-opacity:1;stroke:none;" r="' + str(r - 0.5) + '" cx="' + \
str(cx) + '" cy="' + str(cy) + '" />\n'
def _def(self, r):
return ' <defs>\
<linearGradient\
id="linearGradient3755">\
<stop\
id="stop3757"\
style="stop-color:%s;stop-opacity:1"\
offset="0" />\
<stop\
id="stop3759"\
style="stop-color:%s;stop-opacity:1"\
offset="1" />\
</linearGradient>\
<radialGradient\
cx="0"\
cy="0"\
r="%f"\
fx="%f"\
fy="%f"\
id="radialGradient3761"\
xlink:href="#linearGradient3755"\
gradientUnits="userSpaceOnUse" />\
</defs>\
' % (self._fill, self._fill_dark, r, r / 3, r / 3)
def _footer(self):
return '</svg>\n'
def svg_str_to_pixbuf(svg_string):
""" Load pixbuf from SVG string """
pl = gtk.gdk.PixbufLoader('svg')
pl.write(svg_string)
pl.close()
pixbuf = pl.get_pixbuf()
return pixbuf
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