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#Copyright (c) 2009, Walter Bender
#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
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 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
if parent is None:
tw.sugar = False
win = gtk.Window(gtk.WINDOW_TOPLEVEL)
win.set_has_frame(True)
win.set_decorated(True)
tw.canvas = win
tw.canvas.set_size_request(gtk.gdk.screen_width(), \
gtk.gdk.screen_height())
tw.canvas.connect("destroy", lambda w: gtk.main_quit())
win.show_all()
# 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
# scale to fill 80% of screen height
tw.card_dim = CARD_DIM
tw.scale = 0.8 * tw.height/(tw.card_dim*3)
tw.area = tw.canvas.window
tw.gc = tw.area.new_gc()
tw.cm = tw.gc.get_colormap()
tw.msgcolor = tw.cm.alloc_color('black')
tw.sprites = []
# 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]
spr = findsprite(tw,(x,y))
if spr is None:
tw.press = -1
tw.release = -1
return True
# take note of card under button press
tw.press = spr.label
return True
#
# Button release
#
def _button_release_cb(win, event, tw):
win.grab_focus()
x, y = map(int, event.get_coords())
spr = findsprite(tw,(x,y))
if spr is None:
tw.press = -1
tw.release = -1
return True
# take note of card under button release
tw.release = spr.label
# 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()
inval(tw.grid.card_table[tw.press].spr)
inval(tw.grid.card_table[tw.release].spr)
redrawsprites(tw)
tw.press = -1
tw.release = -1
if tw.sugar is True:
if tw.grid.test() == True:
tw.activity.results_label.set_text(_("You solved the puzzle."))
tw.activity.results_label.show()
else:
tw.activity.results_label.set_text(_("Keep trying."))
tw.activity.results_label.show()
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):
redrawsprites(tw)
return True
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