예제 #1
0
#! /usr/bin/env python
예제 #2
0
class ArrayItem:

    def __init__(self, array, index, value):
        self.array = array
        self.index = index
        self.value = value
        x1, y1, x2, y2 = self.position()
        self.item = Rectangle(array.canvas, x1, y1, x2, y2,
                              fill='red', outline='black', width=1)
        self.item.bind('<Button-1>', self.mouse_down)
        self.item.bind('<Button1-Motion>', self.mouse_move)
        self.item.bind('<ButtonRelease-1>', self.mouse_up)

    def delete(self):
        item = self.item
        self.array = None
        self.item = None
        item.delete()

    def mouse_down(self, event):
        self.lastx = event.x
        self.lasty = event.y
        self.origx = event.x
        self.origy = event.y
        self.item.tkraise()

    def mouse_move(self, event):
        self.item.move(event.x - self.lastx, event.y - self.lasty)
        self.lastx = event.x
        self.lasty = event.y

    def mouse_up(self, event):
        i = self.nearestindex(event.x)
        if i >= self.array.getsize():
            i = self.array.getsize() - 1
        if i < 0:
            i = 0
        other = self.array.items[i]
        here = self.index
        self.array.items[here], self.array.items[i] = other, self
        self.index = i
        x1, y1, x2, y2 = self.position()
        self.item.coords(((x1, y1), (x2, y2)))
        other.setindex(here)

    def setindex(self, index):
        nsteps = steps(self.index, index)
        if not nsteps: return
        if self.array.speed == "fastest":
            nsteps = 0
        oldpts = self.position()
        self.index = index
        newpts = self.position()
        trajectory = interpolate(oldpts, newpts, nsteps)
        self.item.tkraise()
        for pts in trajectory:
            self.item.coords((pts[:2], pts[2:]))
            self.array.wait(50)

    def swapwith(self, other):
        nsteps = steps(self.index, other.index)
        if not nsteps: return
        if self.array.speed == "fastest":
            nsteps = 0
        myoldpts = self.position()
        otheroldpts = other.position()
        self.index, other.index = other.index, self.index
        mynewpts = self.position()
        othernewpts = other.position()
        myfill = self.item['fill']
        otherfill = other.item['fill']
        self.item.config(fill='green')
        other.item.config(fill='yellow')
        self.array.master.update()
        if self.array.speed == "single-step":
            self.item.coords((mynewpts[:2], mynewpts[2:]))
            other.item.coords((othernewpts[:2], othernewpts[2:]))
            self.array.master.update()
            self.item.config(fill=myfill)
            other.item.config(fill=otherfill)
            self.array.wait(0)
            return
        mytrajectory = interpolate(myoldpts, mynewpts, nsteps)
        othertrajectory = interpolate(otheroldpts, othernewpts, nsteps)
        if self.value > other.value:
            self.item.tkraise()
            other.item.tkraise()
        else:
            other.item.tkraise()
            self.item.tkraise()
        try:
            for i in range(len(mytrajectory)):
                mypts = mytrajectory[i]
                otherpts = othertrajectory[i]
                self.item.coords((mypts[:2], mypts[2:]))
                other.item.coords((otherpts[:2], otherpts[2:]))
                self.array.wait(50)
        finally:
            mypts = mytrajectory[-1]
            otherpts = othertrajectory[-1]
            self.item.coords((mypts[:2], mypts[2:]))
            other.item.coords((otherpts[:2], otherpts[2:]))
            self.item.config(fill=myfill)
            other.item.config(fill=otherfill)

    def compareto(self, other):
        myfill = self.item['fill']
        otherfill = other.item['fill']
        outcome = cmp(self.value, other.value)
        if outcome < 0:
            myflash = 'white'
            otherflash = 'black'
        elif outcome > 0:
            myflash = 'black'
            otherflash = 'white'
        else:
            myflash = otherflash = 'grey'
        try:
            self.item.config(fill=myflash)
            other.item.config(fill=otherflash)
            self.array.wait(500)
        finally:
            self.item.config(fill=myfill)
            other.item.config(fill=otherfill)
        return outcome

    def position(self):
        x1 = (self.index+1)*XGRID - WIDTH/2
        x2 = x1+WIDTH
        y2 = (self.array.maxvalue+1)*YGRID
        y1 = y2 - (self.value)*YGRID
        return x1, y1, x2, y2

    def nearestindex(self, x):
        return int(round(float(x)/XGRID)) - 1
예제 #3
0
class Card:
    """A playing card.

    A card doesn't record to which stack it belongs; only the stack
    records this (it turns out that we always know this from the
    context, and this saves a ``double update'' with potential for
    inconsistencies).

    Public methods:

    moveto(x, y) -- move the card to an absolute position
    moveby(dx, dy) -- move the card by a relative offset
    tkraise() -- raise the card to the top of its stack
    showface(), showback() -- turn the card face up or down & raise it

    Public read-only instance variables:

    suit, value, color -- the card's suit, value and color
    face_shown -- true when the card is shown face up, else false

    Semi-public read-only instance variables (XXX should be made
    private):

    group -- the Canvas.Group representing the card
    x, y -- the position of the card's top left corner

    Private instance variables:

    __back, __rect, __text -- the canvas items making up the card

    (To show the card face up, the text item is placed in front of
    rect and the back is placed behind it.  To show it face down, this
    is reversed.  The card is created face down.)

    """
    def __init__(self, suit, value, canvas):
        """Card constructor.

        Arguments are the card's suit and value, and the canvas widget.

        The card is created at position (0, 0), with its face down
        (adding it to a stack will position it according to that
        stack's rules).

        """
        self.suit = suit
        self.value = value
        self.color = COLOR[suit]
        self.face_shown = 0

        self.x = self.y = 0
        self.group = Group(canvas)

        text = "%s  %s" % (VALNAMES[value], suit)
        self.__text = CanvasText(canvas,
                                 CARDWIDTH / 2,
                                 0,
                                 anchor=N,
                                 fill=self.color,
                                 text=text)
        self.group.addtag_withtag(self.__text)

        self.__rect = Rectangle(canvas,
                                0,
                                0,
                                CARDWIDTH,
                                CARDHEIGHT,
                                outline='black',
                                fill='white')
        self.group.addtag_withtag(self.__rect)

        self.__back = Rectangle(canvas,
                                MARGIN,
                                MARGIN,
                                CARDWIDTH - MARGIN,
                                CARDHEIGHT - MARGIN,
                                outline='black',
                                fill='blue')
        self.group.addtag_withtag(self.__back)

    def __repr__(self):
        """Return a string for debug print statements."""
        return "Card(%r, %r)" % (self.suit, self.value)

    def moveto(self, x, y):
        """Move the card to absolute position (x, y)."""
        self.moveby(x - self.x, y - self.y)

    def moveby(self, dx, dy):
        """Move the card by (dx, dy)."""
        self.x = self.x + dx
        self.y = self.y + dy
        self.group.move(dx, dy)

    def tkraise(self):
        """Raise the card above all other objects in its canvas."""
        self.group.tkraise()

    def showface(self):
        """Turn the card's face up."""
        self.tkraise()
        self.__rect.tkraise()
        self.__text.tkraise()
        self.face_shown = 1

    def showback(self):
        """Turn the card's face down."""
        self.tkraise()
        self.__rect.tkraise()
        self.__back.tkraise()
        self.face_shown = 0
예제 #4
0
class Card:

    """A playing card.

    A card doesn't record to which stack it belongs; only the stack
    records this (it turns out that we always know this from the
    context, and this saves a ``double update'' with potential for
    inconsistencies).

    Public methods:

    moveto(x, y) -- move the card to an absolute position
    moveby(dx, dy) -- move the card by a relative offset
    tkraise() -- raise the card to the top of its stack
    showface(), showback() -- turn the card face up or down & raise it

    Public read-only instance variables:

    suit, value, color -- the card's suit, value and color
    face_shown -- true when the card is shown face up, else false

    Semi-public read-only instance variables (XXX should be made
    private):

    group -- the Canvas.Group representing the card
    x, y -- the position of the card's top left corner

    Private instance variables:

    __back, __rect, __text -- the canvas items making up the card

    (To show the card face up, the text item is placed in front of
    rect and the back is placed behind it.  To show it face down, this
    is reversed.  The card is created face down.)

    """

    def __init__(self, suit, value, canvas):
        """Card constructor.

        Arguments are the card's suit and value, and the canvas widget.

        The card is created at position (0, 0), with its face down
        (adding it to a stack will position it according to that
        stack's rules).

        """
        self.suit = suit
        self.value = value
        self.color = COLOR[suit]
        self.face_shown = 0

        self.x = self.y = 0
        self.group = Group(canvas)

        text = "%s  %s" % (VALNAMES[value], suit)
        self.__text = CanvasText(canvas, CARDWIDTH/2, 0,
                               anchor=N, fill=self.color, text=text)
        self.group.addtag_withtag(self.__text)

        self.__rect = Rectangle(canvas, 0, 0, CARDWIDTH, CARDHEIGHT,
                              outline='black', fill='white')
        self.group.addtag_withtag(self.__rect)

        self.__back = Rectangle(canvas, MARGIN, MARGIN,
                              CARDWIDTH-MARGIN, CARDHEIGHT-MARGIN,
                              outline='black', fill='blue')
        self.group.addtag_withtag(self.__back)

    def __repr__(self):
        """Return a string for debug print statements."""
        return "Card(%r, %r)" % (self.suit, self.value)

    def moveto(self, x, y):
        """Move the card to absolute position (x, y)."""
        self.moveby(x - self.x, y - self.y)

    def moveby(self, dx, dy):
        """Move the card by (dx, dy)."""
        self.x = self.x + dx
        self.y = self.y + dy
        self.group.move(dx, dy)

    def tkraise(self):
        """Raise the card above all other objects in its canvas."""
        self.group.tkraise()

    def showface(self):
        """Turn the card's face up."""
        self.tkraise()
        self.__rect.tkraise()
        self.__text.tkraise()
        self.face_shown = 1

    def showback(self):
        """Turn the card's face down."""
        self.tkraise()
        self.__rect.tkraise()
        self.__back.tkraise()
        self.face_shown = 0
예제 #5
0
#! /usr/bin/env python