Initial revision

Lib/tkinter/Canvas.py

@@ -0,0 +1,115 @@
+# This module exports classes for the various canvas item types
+
+# vi:set tabsize=4:
+
+from Tkinter import Canvas, _isfunctype
+
+class CanvasItem:
+	def __init__(self, canvas, itemType, args = (), cnf={}):
+		self.canvas = canvas
+		self.id = canvas._create(itemType, args + (cnf,))
+	def __str__(self):
+		return str(self.id)
+	def __repr__(self):
+		return '<%s, id=%d>' % (self.__class__.__name__, self.id)
+	def __del__(self):
+		self.canvas.delete(self.id)
+	delete = __del__
+	def __getitem__(self, key):
+		v = self.canvas.tk.split(self.canvas.tk.call(self.canvas.pathName, 
+							     'itemconfigure',
+							     str(self.id),
+							     '-' + key))
+		return v[4]
+	def __setitem__(self, key, value):
+		self.canvas._itemconfig(self.id, {key: value})
+	def keys(self):
+		if not hasattr(self, '_keys'):
+			self._keys = map(lambda x, tk=self.canvas.tk:
+							        tk.splitlist(x)[0][1:],
+							 self.canvas._splitlist(
+								 self.canvas.cmd('itemconfigure', self.id)))
+			return self._keys
+	def has_key(self, key):
+		return key in self.keys()
+	def addtag(self, tag, option='withtag'):
+		self.canvas.addtag(tag, option, self.id)
+	def bbox(self):
+		x1, y1, x2, y2 = self.canvas.bbox(self.id)
+		return (x1, y1), (x2, y2)
+	def bind(self, sequence=None, command=None):
+		return self.canvas.bind(self.id, sequence, command)
+	def coords(self, pts = ()):
+		flat = ()
+		for x, y in pts: flat = flat + (x, y)
+		return apply(self.canvas.coords, (self.id,) + flat)
+	def dchars(self, first, last=None):
+		self.canvas.dchars(self.id, first, last)
+	def dtag(self, ttd):
+		self.canvas.dtag(self.id, ttd)
+	def focus(self):
+		self.canvas.focus(self.id)
+	def gettags(self):
+		return self.canvas.gettags(self.id)
+	def icursor(self):
+		self.canvas.icursor(self.id)
+	def index(self):
+		return self.canvas.index(self.id)
+	def insert(self, beforethis, string):
+		self.canvas.insert(self.id, beforethis, string)
+	def lower(self, belowthis=None):
+		self.canvas.lower(self.id, belowthis)
+	def move(self, xamount, yamount):
+		self.canvas.move(self.id, xamount, yamount)
+	def raise_(self, abovethis=None):
+		self.canvas.raise_(self.id, abovethis)
+	def scale(self, xorigin, yorigin, xscale, yscale):
+		self.canvas.scale(self.id, xorigin, yorigin, xscale, yscale)
+	def type(self):
+		return self.canvas.type(self.id)
+
+class Arc(CanvasItem):
+	def __init__(self, canvas, (x1, y1), (x2, y2), cnf={}):
+		CanvasItem.__init__(self, canvas, 'arc',
+							(str(x1), str(y1), str(x2), str(y2)), cnf)
+
+class Bitmap(CanvasItem):
+	def __init__(self, canvas, (x1, y1), cnf={}):
+		CanvasItem.__init__(self, canvas, 'bitmap', (str(x1), str(y1)), cnf)
+
+class Line(CanvasItem):
+	def __init__(self, canvas, pts, cnf={}):
+		pts = reduce(lambda a, b: a+b,
+					 map(lambda pt: (str(pt[0]), str(pt[1])), pts))
+		CanvasItem.__init__(self, canvas, 'line', pts, cnf)
+
+class Oval(CanvasItem):
+	def __init__(self, canvas, (x1, y1), (x2, y2), cnf={}):
+		CanvasItem.__init__(self, canvas, 'oval',
+							(str(x1), str(y1), str(x2), str(y2)), cnf)
+
+class Polygon(CanvasItem):
+	def __init__(self, canvas, pts, cnf={}):
+		pts = reduce(lambda a, b: a+b,
+					 map(lambda pt: (str(pt[0]), str(pt[1])), pts))
+		CanvasItem.__init__(self, canvas, 'polygon', pts, cnf)
+
+class Curve(Polygon):
+	def __init__(self, canvas, pts, cnf={}):
+		cnf['smooth'] = 'yes'
+		Polygon.__init__(self, canvas, pts, cnf)
+
+class Rectangle(CanvasItem):
+	def __init__(self, canvas, (x1, y1), (x2, y2), cnf={}):
+		CanvasItem.__init__(self, canvas, 'rectangle',
+							(str(x1), str(y1), str(x2), str(y2)), cnf)
+
+# XXX Can't use name "Text" since that is already taken by the Text widget...
+class String(CanvasItem):
+	def __init__(self, canvas, (x1, y1), cnf={}):
+		CanvasItem.__init__(self, canvas, 'text', (str(x1), str(y1)), cnf)
+
+class Window(CanvasItem):
+	def __init__(self, canvas, where, cnf={}):
+		CanvasItem.__init__(self, canvas, 'window',
+							(str(where[0]), str(where[1])), cnf)