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# -*- coding: utf-8 -*-
#Copyright (c) 2012 Walter Bender
# Port to GTK3:
# Ignacio Rodriguez <ignaciorodriguez@sugarlabs.org>
# 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
from gi.repository import Gdk, GdkPixbuf, Gtk, GObject
import cairo
import os
import glob
from random import uniform
from gettext import gettext as _
import logging
_logger = logging.getLogger('search-activity')
try:
from sugar3.graphics import style
GRID_CELL_SIZE = style.GRID_CELL_SIZE
except ImportError:
GRID_CELL_SIZE = 0
from sprites import Sprites, Sprite
DOT_SIZE = 40
COLORS = ['#000000', '#a00000', '#907000', '#009000', '#0000ff', '#9000a0']
class Game():
def __init__(self, canvas, parent=None, path=None,
colors=['#A0FFA0', '#FF8080']):
self._canvas = canvas
self._parent = parent
self._parent.show_all()
self._path = path
self._colors = ['#FFFFFF']
self._colors.append(colors[0])
self._colors.append(colors[1])
self._canvas.connect('draw', self.__draw_cb)
self._width = Gdk.Screen.width()
self._height = Gdk.Screen.height() - (GRID_CELL_SIZE * 1.5)
self._scale = self._height / (3 * DOT_SIZE * 1.2)
self._scale /= 1.5
self._dot_size = int(DOT_SIZE * self._scale)
self._space = int(self._dot_size / 5.)
self.we_are_sharing = False
self._start_time = 0
self._timeout_id = None
# Find the image files
self._PATHS = glob.glob(os.path.join(self._path, 'images', '*.svg'))
# Generate the sprites we'll need...
self._sprites = Sprites(self._canvas)
self._dots = []
yoffset = self._space * 2 # int(self._space / 2.)
for y in range(3):
for x in range(3):
xoffset = int((self._width - 3 * self._dot_size - \
2 * self._space) / 2.)
self._dots.append(
Sprite(self._sprites,
xoffset + x * (self._dot_size + self._space),
y * (self._dot_size + self._space) + yoffset,
self._new_dot_surface(color=self._colors[0])))
self._dots[-1].type = -1 # No image
self._dots[-1].set_label_attributes(72)
def _all_clear(self):
''' Things to reinitialize when starting up a new game. '''
if self._timeout_id is not None:
GObject.source_remove(self._timeout_id)
for dot in self._dots:
if dot.type != -1:
dot.type = -1
dot.set_shape(self._new_dot_surface(
self._colors[abs(dot.type)]))
dot.set_label('?')
self._dance_counter = 0
self._dance_step()
def _dance_step(self):
''' Short animation before loading new game '''
for dot in self._dots:
dot.set_shape(self._new_dot_surface(
self._colors[int(uniform(0, 3))]))
self._dance_counter += 1
if self._dance_counter < 10:
self._timeout_id = GObject.timeout_add(500, self._dance_step)
else:
self._new_game()
def new_game(self):
''' Start a new game. '''
self._all_clear()
def _new_game(self):
''' Select pictures at random '''
for i in range(3 * 3):
self._dots[i].set_label('')
self._dots[i].type = int(uniform(0, len(self._PATHS)))
_logger.debug(self._dots[i].type)
self._dots[i].set_shape(self._new_dot_surface(
image=self._dots[i].type))
if self.we_are_sharing:
_logger.debug('sending a new game')
self._parent.send_new_game()
def restore_game(self, dot_list):
''' Restore a game 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_surface(
image=self._dots[i].type))
def save_game(self):
''' Return dot list for saving to Journal or
sharing '''
dot_list = []
for dot in self._dots:
dot_list.append(dot.type)
return dot_list
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] * 3
def _dot_to_grid(self, dot):
''' calculate the grid column and row for a dot '''
return [dot % 3, int(dot / 3)]
def __draw_cb(self, canvas, cr):
self._sprites.redraw_sprites(cr=cr)
def __expose_cb(self, win, event):
''' Callback to handle window expose events '''
self.do_expose_event(event)
return True
# Handle the expose-event by drawing
def do_expose_event(self, event):
# Create the cairo context
cr = self._canvas.window.cairo_create()
# Restrict Cairo to the exposed area; avoid extra work
cr.rectangle(event.area.x, event.area.y,
event.area.width, event.area.height)
cr.clip()
# Refresh sprite list
if cr is not None:
self._sprites.redraw_sprites(cr=cr)
def _destroy_cb(self, win, event):
Gtk.main_quit()
def export(self):
''' Write dot to cairo surface. '''
w = h = int(4 * self._space + 3 * self._dot_size)
png_surface = cairo.ImageSurface(cairo.FORMAT_RGB24, w, h)
cr = cairo.Context(png_surface)
cr.set_source_rgb(192, 192, 192)
cr.rectangle(0, 0, w, h)
cr.fill()
for i in range(9):
y = self._space + int(i / 3.) * (self._dot_size + self._space)
x = self._space + (i % 3) * (self._dot_size + self._space)
cr.save()
cr.set_source_surface(self._dots[i].images[0], x, y)
cr.rectangle(x, y, self._dot_size, self._dot_size)
cr.fill()
cr.restore()
return png_surface
def _new_dot_surface(self, color='#000000', image=None):
''' generate a dot of a color color '''
self._dot_cache = {}
if image is not None:
color = COLORS[int(uniform(0, 6))]
fd = open(os.path.join(self._path, self._PATHS[image]), 'r')
svg_string = ''
for line in fd:
svg_string += line.replace('#000000', color)
fd.close()
pixbuf = svg_str_to_pixbuf(svg_string, w=self._dot_size,
h = self._dot_size)
else:
if color in self._dot_cache:
return self._dot_cache[color]
self._stroke = color
self._fill = color
self._svg_width = self._dot_size
self._svg_height = self._dot_size
i = self._colors.index(color)
pixbuf = svg_str_to_pixbuf(
self._header() + \
self._circle(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)
Gdk.cairo_set_source_pixbuf(context, pixbuf, 0, 0)
context.rectangle(0, 0, self._svg_width, self._svg_height)
context.fill()
if image is None:
self._dot_cache[color] = surface
return surface
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):
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)
svg_string += 'style="fill:#000000;stroke:#000000;"/>\n'
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 _footer(self):
return '</svg>\n'
def svg_str_to_pixbuf(svg_string, w=None, h=None):
''' Load pixbuf from SVG string '''
# Admito que fue la parte mas dificil..
pl = GdkPixbuf.PixbufLoader.new_with_type('svg')
if w is not None:
pl.set_size(w, h)
pl.write(svg_string)
pl.close()
return pl.get_pixbuf()
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