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#Copyright (c) 2009,10 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 Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import pygtk
pygtk.require('2.0')
import gtk
from gettext import gettext as _
try:
from sugar.graphics import style
GRID_CELL_SIZE = style.GRID_CELL_SIZE
except:
GRID_CELL_SIZE = 0
from grid import *
from card import *
from sprites import Sprites
from math import sqrt
CARD_DIM = 135
class taWindow: pass
#
# handle launch from both within and without of Sugar environment
#
def new_window(canvas, path, parent=None):
tw = taWindow()
tw.path = path
tw.activity = parent
# starting from command line
# we have to do all the work that was done in CardSortActivity.py
if parent is None:
tw.sugar = False
tw.canvas = canvas
# starting from Sugar
else:
tw.sugar = True
tw.canvas = canvas
parent.show_all()
tw.canvas.set_flags(gtk.CAN_FOCUS)
tw.canvas.add_events(gtk.gdk.BUTTON_PRESS_MASK)
tw.canvas.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
tw.canvas.connect("expose-event", _expose_cb, tw)
tw.canvas.connect("button-press-event", _button_press_cb, tw)
tw.canvas.connect("button-release-event", _button_release_cb, tw)
tw.width = gtk.gdk.screen_width()
tw.height = gtk.gdk.screen_height()-GRID_CELL_SIZE
tw.card_dim = CARD_DIM
tw.scale = 0.8 * tw.height/(tw.card_dim*3)
# Initialize the sprite repository
tw.sprites = Sprites(tw.canvas)
# Initialize the grid
tw.grid = Grid(tw)
# Start solving the puzzle
tw.press = -1
tw.release = -1
tw.start_drag = [0,0]
return tw
#
# Button press
#
def _button_press_cb(win, event, tw):
win.grab_focus()
x, y = map(int, event.get_coords())
tw.start_drag = [x,y]
tw.grid.hide_masks()
spr = tw.sprites.find_sprite((x,y))
if spr is None:
tw.press = -1
tw.release = -1
return True
# take note of card under button press
tw.press = int(spr.labels[0])
return True
#
# Button release
#
def _button_release_cb(win, event, tw):
win.grab_focus()
tw.grid.hide_masks()
x, y = map(int, event.get_coords())
spr = tw.sprites.find_sprite((x,y))
if spr is None:
tw.press = -1
tw.release = -1
return True
# take note of card under button release
tw.release = int(spr.labels[0])
# if the same card (click) then rotate
if tw.press == tw.release:
# check to see if it was an aborted move
if distance(tw.start_drag,[x,y]) < 20:
tw.grid.card_table[tw.press].rotate_ccw()
# tw.grid.card_table[tw.press].print_card()
# if different card (drag) then swap
else:
tw.grid.swap(tw.press,tw.release)
# tw.grid.print_grid()
tw.press = -1
tw.release = -1
if tw.test() == True:
if tw.sugar is True:
tw.activity.results_label.set_text(_("You solved the puzzle."))
tw.activity.results_label.show()
else:
tw.win.set_title(_("CardSort") + ": " + \
_("You solved the puzzle."))
else:
if tw.sugar is True:
tw.activity.results_label.set_text(_("Keep trying."))
tw.activity.results_label.show()
else:
tw.win.set_title(_("CardSort") + ": " + _("Keep trying."))
return True
#
# Measure length of drag between button press and button release
#
def distance(start,stop):
dx = start[0]-stop[0]
dy = start[1]-stop[1]
return sqrt(dx*dx+dy*dy)
#
# Repaint
#
def _expose_cb(win, event, tw):
tw.sprites.redraw_sprites()
return True
#
# callbacks
#
def _destroy_cb(win, event, tw):
gtk.main_quit()
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