new project

1 files changed, 318 insertions, 0 deletions

diff --git a/CardSortActivity.py b/CardSortActivity.py
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+++ b/CardSortActivity.py
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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
+import gobject
+
+import sugar
+from sugar.activity import activity
+from sugar.bundle.activitybundle import ActivityBundle
+from sugar.activity.widgets import ActivityToolbarButton
+from sugar.activity.widgets import StopButton
+from sugar.graphics.toolbarbox import ToolbarBox
+from sugar.graphics.toolbarbox import ToolbarButton
+from sugar.graphics.toolbutton import ToolButton
+from sugar.graphics.menuitem import MenuItem
+from sugar.graphics.icon import Icon
+from sugar.graphics import style
+from sugar.datastore import datastore
+
+from sugar import profile
+from gettext import gettext as _
+import locale
+import os.path
+from sprites import *
+from math import sqrt
+
+class taWindow: pass
+
+SERVICE = 'org.sugarlabs.CardSortActivity'
+IFACE = SERVICE
+PATH = '/org/augarlabs/CardSortActivity'
+
+CARD_DIM = 135
+CARD_DEFS = ((1,3,-2,-3),(2,3,-3,-2),(2,3,-4,-4),\
+             (2,1,-1,-4),(3,4,-4,-3),(4,2,-1,-2),\
+             (1,1,-2,-4),(4,2,-3,-4),(1,3,-1,-2))
+
+
+#
+# class for defining 3x3 matrix of cards
+#
+class Grid:
+    # 123
+    # 456
+    # 789
+    def __init__(self,tw):
+        self.grid = [1,2,3,4,5,6,7,8,9]
+        self.card_table = {}
+        # Initialize the cards
+        i = 0
+        x = (tw.width-(CARD_DIM*3))/2
+        y = (tw.height-(CARD_DIM*3))/2
+        for c in CARD_DEFS:
+            self.card_table[i] = Card(tw,c,i,x,y)
+            self.card_table[i].draw_card()
+            x += CARD_DIM
+            if x > (tw.width+(CARD_DIM*2))/2:
+                x = (tw.width-(CARD_DIM*3))/2
+                y += CARD_DIM
+            i += 1
+
+    def swap(self,a,b):
+        # swap grid elements and x,y positions of sprites
+        print "swapping cards " + str(a) + " and " + str(b)
+        tmp = self.grid[a]
+        x = self.card_table[a].spr.x
+        y = self.card_table[a].spr.y
+        self.grid[a] = self.grid[b]
+        self.card_table[a].spr.x = self.card_table[b].spr.x
+        self.card_table[a].spr.y = self.card_table[b].spr.y
+        self.grid[b] = tmp
+        self.card_table[b].spr.x = x
+        self.card_table[b].spr.y = y
+
+    def print_grid(self):
+        print self.grid
+        return
+
+    def test(self):
+        for i in (0,1,3,4,6,7):
+            if self.card_table[self.grid[i]].east + \
+               self.card_table[self.grid[i+1]].west != 0:
+                return False
+        for i in (0,1,2,3,4,5):
+            if self.card_table[self.grid[i]].south + \
+               self.card_table[self.grid[i+3]].north != 0:
+                return False
+        return True
+
+
+#
+# class for defining individual cards
+#
+class Card:
+    # Spade   = 1,-1
+    # Heart   = 2,-2
+    # Club    = 3,-3
+    # Diamond = 4,-4
+    def __init__(self,tw,c,i,x,y):
+        self.north = c[0]
+        self.east = c[1]
+        self.south = c[2]
+        self.west = c[3]
+        self.rotate = 0
+        # create sprite from svg file
+        self.spr = sprNew(tw,x,y,self.load_image(tw.path,i))
+        self.spr.label = i
+
+    def draw_card(self):
+        setlayer(self.spr,2000)
+        draw(self.spr)
+
+    def load_image(self, file, i):
+        print "loading " + os.path.join(file + str(i) + '.svg')
+        return gtk.gdk.pixbuf_new_from_file(os.path.join(file + \
+                                                         str(i) + "x" + \
+                                                         '.svg'))
+
+    def rotate_ccw(self):
+        # print "rotating card " + str(self.spr.label)
+        tmp = self.north
+        self.north = self.east
+        self.east = self.south
+        self.south = self.west
+        self.west = tmp
+        self.rotate += 90
+        if self.rotate > 359:
+            self.rotate -= 360
+        tmp = self.spr.image.rotate_simple(90)
+        self.spr.image = tmp
+
+    def print_card(self):
+        print "(" + str(self.north) + "," + str(self.east) + \
+              "," + str(self.south) + "," + str(self.west) + \
+              ") " + str(self.rotate) + "ccw" + \
+              " x:" + str(self.spr.x) + " y:" + str(self.spr.y)
+
+#
+# Sugar activity
+#
+class CardSortActivity(activity.Activity):
+
+    def __init__(self, handle):
+        super(CardSortActivity,self).__init__(handle)
+
+        # Use 0.86 toolbar design
+        toolbar_box = ToolbarBox()
+
+        # Buttons added to the Activity toolbar
+        activity_button = ActivityToolbarButton(self)
+        toolbar_box.toolbar.insert(activity_button, 0)
+        activity_button.show()
+
+        # Solver button
+        self.solve_puzzle = ToolButton( "solve-off" )
+        self.solve_puzzle.set_tooltip(_('Solve it'))
+        self.solve_puzzle.props.sensitive = True
+        self.solve_puzzle.connect('clicked', self._solver_cb)
+        toolbar_box.toolbar.insert(self.solve_puzzle, -1)
+        self.solve_puzzle.show()
+
+        separator = gtk.SeparatorToolItem()
+        separator.show()
+        toolbar_box.toolbar.insert(separator, -1)
+
+        # Label for showing status
+        self.results_label = gtk.Label(_("click to rotate; drag to swap"))
+        self.results_label.show()
+        results_toolitem = gtk.ToolItem()
+        results_toolitem.add(self.results_label)
+        toolbar_box.toolbar.insert(results_toolitem,-1)
+
+        separator = gtk.SeparatorToolItem()
+        separator.props.draw = False
+        separator.set_expand(True)
+        separator.show()
+        toolbar_box.toolbar.insert(separator, -1)
+
+        # The ever-present Stop Button
+        stop_button = StopButton(self)
+        stop_button.props.accelerator = '<Ctrl>Q'
+        toolbar_box.toolbar.insert(stop_button, -1)
+        stop_button.show()
+
+        self.set_toolbar_box(toolbar_box)
+        toolbar_box.show()
+
+        # Create a canvas
+        canvas = gtk.DrawingArea()
+        canvas.set_size_request(gtk.gdk.screen_width(), \
+                                gtk.gdk.screen_height())
+        self.set_canvas(canvas)
+        self.show_all()
+
+        # Initialize the canvas
+        self.tw = taWindow()
+        self.tw.window = canvas
+        canvas.set_flags(gtk.CAN_FOCUS)
+        canvas.add_events(gtk.gdk.BUTTON_PRESS_MASK)
+        canvas.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
+        canvas.connect("expose-event", self._expose_cb, self.tw)
+        canvas.connect("button-press-event", self._button_press_cb, self.tw)
+        canvas.connect("button-release-event", self._button_release_cb, self.tw)
+        self.tw.width = gtk.gdk.screen_width()
+        self.tw.height = gtk.gdk.screen_height()-style.GRID_CELL_SIZE
+        self.tw.area = canvas.window
+        self.tw.gc = self.tw.area.new_gc()
+        self.tw.scale = 3
+        self.tw.cm = self.tw.gc.get_colormap()
+        self.tw.msgcolor = self.tw.cm.alloc_color('black')
+        self.tw.sprites = []
+
+        # Initialize the grid
+        self.tw.path = os.path.join(activity.get_bundle_path(),'images/card')
+        self.tw.grid = Grid(self.tw)
+
+        # Start solving the puzzle
+        self.tw.press = -1
+        self.tw.release = -1
+        self.tw.start_drag = [0,0]
+
+    #
+    # Solver
+    #
+    def _solver_cb(self, button):
+        self.solve_puzzle.set_icon("solve-on")
+        """
+        We need to write this code
+        """
+        self.results_label.set_text(_("I don't know how to solve it."))
+        self.results_label.show()
+        self.solve_puzzle.set_icon("solve-off")
+        return True
+
+
+    #
+    # Repaint
+    #
+    def _expose_cb(self, win, event, tw):
+        redrawsprites(tw)
+        return True
+
+    #
+    # Button press
+    #
+    def _button_press_cb(self, 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(self, 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 self.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.grid.test() == True:
+            self.results_label.set_text(_("You solved the puzzle."))
+            self.results_label.show()
+        else:
+            self.results_label.set_text(_("Keep trying."))
+            self.results_label.show()
+
+        return True
+
+    def distance(self,start,stop):
+        dx = start[0]-stop[0]
+        dy = start[1]-stop[1]
+        return sqrt(dx*dx+dy*dy)