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.canvas = canvas
self.group = Group(canvas)
text = "%s %s" % (VALNAMES[value], suit)
self.__text = canvas.create_text(CARDWIDTH // 2, 0, anchor=N,
fill=self.color, text=text)
self.group.addtag_withtag(self.__text)
self.__rect = canvas.create_rectangle(0, 0, CARDWIDTH, CARDHEIGHT,
outline='black', fill='white')
self.group.addtag_withtag(self.__rect)
self.__back = canvas.create_rectangle(MARGIN, MARGIN,
CARDWIDTH - MARGIN,
CARDHEIGHT - MARGIN,
outline='black', fill='blue')
self.group.addtag_withtag(self.__back)
def __init__(self, x, y, game=None):
"""Stack constructor.
Arguments are the stack's nominal x and y position (the top
left corner of the first card placed in the stack), and the
game object (which is used to get the canvas; subclasses use
the game object to find other stacks).
"""
self.x = x
self.y = y
self.game = game
self.cards = []
self.group = Group(self.game.canvas)
self.group.bind('<1>', self.clickhandler)
self.group.bind('<Double-1>', self.doubleclickhandler)
self.group.bind('<B1-Motion>', self.motionhandler)
self.group.bind('<ButtonRelease-1>', self.releasehandler)
self.makebottom()
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.canvas = canvas
self.group = Group(canvas)
text = "%s %s" % (VALNAMES[value], suit)
self.__text = canvas.create_text(CARDWIDTH // 2,
0,
anchor=N,
fill=self.color,
text=text)
self.group.addtag_withtag(self.__text)
self.__rect = canvas.create_rectangle(0,
0,
CARDWIDTH,
CARDHEIGHT,
outline='black',
fill='white')
self.group.addtag_withtag(self.__rect)
self.__back = canvas.create_rectangle(MARGIN,
MARGIN,
CARDWIDTH - MARGIN,
CARDHEIGHT - MARGIN,
outline='black',
fill='blue')
self.group.addtag_withtag(self.__back)
def __init__(self, x, y, game=None):
"""Stack constructor.
Arguments are the stack's nominal x and y position (the top
left corner of the first card placed in the stack), and the
game object (which is used to get the canvas; subclasses use
the game object to find other stacks).
"""
self.x = x
self.y = y
self.game = game
self.cards = []
self.group = Group(self.game.canvas)
self.group.bind('<1>', self.clickhandler)
self.group.bind('<Double-1>', self.doubleclickhandler)
self.group.bind('<B1-Motion>', self.motionhandler)
self.group.bind('<ButtonRelease-1>', self.releasehandler)
self.makebottom()
class Stack:
"""A generic stack of cards.
This is used as a base class for all other stacks (e.g. the deck,
the suit stacks, and the row stacks).
Public methods:
add(card) -- add a card to the stack
delete(card) -- delete a card from the stack
showtop() -- show the top card (if any) face up
deal() -- delete and return the top card, or None if empty
Method that subclasses may override:
position(card) -- move the card to its proper (x, y) position
The default position() method places all cards at the stack's
own (x, y) position.
userclickhandler(), userdoubleclickhandler() -- called to do
subclass specific things on single and double clicks
The default user (single) click handler shows the top card
face up. The default user double click handler calls the user
single click handler.
usermovehandler(cards) -- called to complete a subpile move
The default user move handler moves all moved cards back to
their original position (by calling the position() method).
Private methods:
clickhandler(event), doubleclickhandler(event),
motionhandler(event), releasehandler(event) -- event handlers
The default event handlers turn the top card of the stack with
its face up on a (single or double) click, and also support
moving a subpile around.
startmoving(event) -- begin a move operation
finishmoving() -- finish a move operation
"""
def __init__(self, x, y, game=None):
"""Stack constructor.
Arguments are the stack's nominal x and y position (the top
left corner of the first card placed in the stack), and the
game object (which is used to get the canvas; subclasses use
the game object to find other stacks).
"""
self.x = x
self.y = y
self.game = game
self.cards = []
self.group = Group(self.game.canvas)
self.group.bind('<1>', self.clickhandler)
self.group.bind('<Double-1>', self.doubleclickhandler)
self.group.bind('<B1-Motion>', self.motionhandler)
self.group.bind('<ButtonRelease-1>', self.releasehandler)
self.makebottom()
def makebottom(self):
pass
def __repr__(self):
"""Return a string for debug print statements."""
return "%s(%d, %d)" % (self.__class__.__name__, self.x, self.y)
# Public methods
def add(self, card):
self.cards.append(card)
card.tkraise()
self.position(card)
self.group.addtag_withtag(card.group)
def delete(self, card):
self.cards.remove(card)
card.group.dtag(self.group)
def showtop(self):
if self.cards:
self.cards[-1].showface()
def deal(self):
if not self.cards:
return None
card = self.cards[-1]
self.delete(card)
return card
# Subclass overridable methods
def position(self, card):
card.moveto(self.x, self.y)
def userclickhandler(self):
self.showtop()
def userdoubleclickhandler(self):
self.userclickhandler()
def usermovehandler(self, cards):
for card in cards:
self.position(card)
# Event handlers
def clickhandler(self, event):
self.finishmoving() # In case we lost an event
self.userclickhandler()
self.startmoving(event)
def motionhandler(self, event):
self.keepmoving(event)
def releasehandler(self, event):
self.keepmoving(event)
self.finishmoving()
def doubleclickhandler(self, event):
self.finishmoving() # In case we lost an event
self.userdoubleclickhandler()
self.startmoving(event)
# Move internals
moving = None
def startmoving(self, event):
self.moving = None
tags = self.game.canvas.gettags('current')
for i in range(len(self.cards)):
card = self.cards[i]
if card.group.tag in tags:
break
else:
return
if not card.face_shown:
return
self.moving = self.cards[i:]
self.lastx = event.x
self.lasty = event.y
for card in self.moving:
card.tkraise()
def keepmoving(self, event):
if not self.moving:
return
dx = event.x - self.lastx
dy = event.y - self.lasty
self.lastx = event.x
self.lasty = event.y
if dx or dy:
for card in self.moving:
card.moveby(dx, dy)
def finishmoving(self):
cards = self.moving
self.moving = None
if cards:
self.usermovehandler(cards)
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.canvas = canvas
self.group = Group(canvas)
text = "%s %s" % (VALNAMES[value], suit)
self.__text = canvas.create_text(CARDWIDTH // 2, 0, anchor=N,
fill=self.color, text=text)
self.group.addtag_withtag(self.__text)
self.__rect = canvas.create_rectangle(0, 0, CARDWIDTH, CARDHEIGHT,
outline='black', fill='white')
self.group.addtag_withtag(self.__rect)
self.__back = canvas.create_rectangle(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.canvas.tag_raise(self.__rect)
self.canvas.tag_raise(self.__text)
self.face_shown = 1
def showback(self):
"""Turn the card's face down."""
self.tkraise()
self.canvas.tag_raise(self.__rect)
self.canvas.tag_raise(self.__back)
self.face_shown = 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.canvas = canvas
self.group = Group(canvas)
text = "%s %s" % (VALNAMES[value], suit)
self.__text = canvas.create_text(CARDWIDTH // 2,
0,
anchor=N,
fill=self.color,
text=text)
self.group.addtag_withtag(self.__text)
self.__rect = canvas.create_rectangle(0,
0,
CARDWIDTH,
CARDHEIGHT,
outline='black',
fill='white')
self.group.addtag_withtag(self.__rect)
self.__back = canvas.create_rectangle(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.canvas.tag_raise(self.__rect)
self.canvas.tag_raise(self.__text)
self.face_shown = 1
def showback(self):
"""Turn the card's face down."""
self.tkraise()
self.canvas.tag_raise(self.__rect)
self.canvas.tag_raise(self.__back)
self.face_shown = 0
class Stack:
"""A generic stack of cards.
This is used as a base class for all other stacks (e.g. the deck,
the suit stacks, and the row stacks).
Public methods:
add(card) -- add a card to the stack
delete(card) -- delete a card from the stack
showtop() -- show the top card (if any) face up
deal() -- delete and return the top card, or None if empty
Method that subclasses may override:
position(card) -- move the card to its proper (x, y) position
The default position() method places all cards at the stack's
own (x, y) position.
userclickhandler(), userdoubleclickhandler() -- called to do
subclass specific things on single and double clicks
The default user (single) click handler shows the top card
face up. The default user double click handler calls the user
single click handler.
usermovehandler(cards) -- called to complete a subpile move
The default user move handler moves all moved cards back to
their original position (by calling the position() method).
Private methods:
clickhandler(event), doubleclickhandler(event),
motionhandler(event), releasehandler(event) -- event handlers
The default event handlers turn the top card of the stack with
its face up on a (single or double) click, and also support
moving a subpile around.
startmoving(event) -- begin a move operation
finishmoving() -- finish a move operation
"""
def __init__(self, x, y, game=None):
"""Stack constructor.
Arguments are the stack's nominal x and y position (the top
left corner of the first card placed in the stack), and the
game object (which is used to get the canvas; subclasses use
the game object to find other stacks).
"""
self.x = x
self.y = y
self.game = game
self.cards = []
self.group = Group(self.game.canvas)
self.group.bind('<1>', self.clickhandler)
self.group.bind('<Double-1>', self.doubleclickhandler)
self.group.bind('<B1-Motion>', self.motionhandler)
self.group.bind('<ButtonRelease-1>', self.releasehandler)
self.makebottom()
def makebottom(self):
pass
def __repr__(self):
"""Return a string for debug print statements."""
return "%s(%d, %d)" % (self.__class__.__name__, self.x, self.y)
# Public methods
def add(self, card):
self.cards.append(card)
card.tkraise()
self.position(card)
self.group.addtag_withtag(card.group)
def delete(self, card):
self.cards.remove(card)
card.group.dtag(self.group)
def showtop(self):
if self.cards:
self.cards[-1].showface()
def deal(self):
if not self.cards:
return None
card = self.cards[-1]
self.delete(card)
return card
# Subclass overridable methods
def position(self, card):
card.moveto(self.x, self.y)
def userclickhandler(self):
self.showtop()
def userdoubleclickhandler(self):
self.userclickhandler()
def usermovehandler(self, cards):
for card in cards:
self.position(card)
# Event handlers
def clickhandler(self, event):
self.finishmoving() # In case we lost an event
self.userclickhandler()
self.startmoving(event)
def motionhandler(self, event):
self.keepmoving(event)
def releasehandler(self, event):
self.keepmoving(event)
self.finishmoving()
def doubleclickhandler(self, event):
self.finishmoving() # In case we lost an event
self.userdoubleclickhandler()
self.startmoving(event)
# Move internals
moving = None
def startmoving(self, event):
self.moving = None
tags = self.game.canvas.gettags('current')
for i in range(len(self.cards)):
card = self.cards[i]
if card.group.tag in tags:
break
else:
return
if not card.face_shown:
return
self.moving = self.cards[i:]
self.lastx = event.x
self.lasty = event.y
for card in self.moving:
card.tkraise()
def keepmoving(self, event):
if not self.moving:
return
dx = event.x - self.lastx
dy = event.y - self.lasty
self.lastx = event.x
self.lasty = event.y
if dx or dy:
for card in self.moving:
card.moveby(dx, dy)
def finishmoving(self):
cards = self.moving
self.moving = None
if cards:
self.usermovehandler(cards)