本文整理汇总了Python中Canvas.Group类的典型用法代码示例。如果您正苦于以下问题：Python Group类的具体用法？Python Group怎么用？Python Group使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Group类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
def __init__(self, canvas, x=0, y=0, fill='red', text='object'):
self.canvas = canvas
self.x = x
self.y = y
self.pile = None
self.group = Group(self.canvas)
self.createitems(fill, text)示例2: __init__
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)示例3: piles
class Object:
"""Base class for composite graphical objects.
Objects belong to a canvas, and can be moved around on the canvas.
They also belong to at most one ``pile'' of objects, and can be
transferred between piles (or removed from their pile).
Objects have a canonical ``x, y'' position which is moved when the
object is moved. Where the object is relative to this position
depends on the object; for simple objects, it may be their center.
Objects have mouse sensitivity. They can be clicked, dragged and
double-clicked. The behavior may actually determined by the pile
they are in.
All instance attributes are public since the derived class may
need them.
"""
def __init__(self, canvas, x=0, y=0, fill='red', text='object'):
self.canvas = canvas
self.x = x
self.y = y
self.pile = None
self.group = Group(self.canvas)
self.createitems(fill, text)
def __str__(self):
return str(self.group)
def createitems(self, fill, text):
self.__oval = Oval(self.canvas,
self.x-20, self.y-10, self.x+20, self.y+10,
fill=fill, width=3)
self.group.addtag_withtag(self.__oval)
self.__text = CanvasText(self.canvas,
self.x, self.y, text=text)
self.group.addtag_withtag(self.__text)
def moveby(self, dx, dy):
if dx == dy == 0:
return
self.group.move(dx, dy)
self.x = self.x + dx
self.y = self.y + dy
def moveto(self, x, y):
self.moveby(x - self.x, y - self.y)
def transfer(self, pile):
if self.pile:
self.pile.delete(self)
self.pile = None
self.pile = pile
if self.pile:
self.pile.add(self)
def tkraise(self):
self.group.tkraise()示例4: stacks
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):
#.........这里部分代码省略.........
示例5: this
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