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Changeset 1839

Timestamp:

08/06/07 00:02:17 (1 year ago)

Author:

arj..@yirdis.nl

Message:

Files:

r1816	r1839
7	7
8	8	from math import atan2
	9	from weakref import WeakKeyDictionary
9	10
10	11	from matrix import Matrix
…	…
118	119	Attributes:
119	120
120		- _canvas: canvas, which owns an item
121		- _handles: list of handles owned by an item
122		- _constraints: item's constraints
123		- matrix: item's transformation matrix
124		- _matrix_i2c: item to canvas coordinates matrix
125		- _matrix_c2i: canvas to item coordinates matrix
126		- _matrix_i2v: item to view coordinates matrices
127		- _matrix_v2i: view to item coordinates matrices
128		- _sort_key: used to sort items
	121	:matrix: item's transformation matrix
	122	:canvas: canvas, which owns an item
	123
	124	Private:
	125
	126	:_canvas: canvas, which owns an item
	127	:_handles: list of handles owned by an item
	128	:_constraints: item's constraints
	129	:_matrix_i2c: item to canvas coordinates matrix
	130	:_matrix_c2i: canvas to item coordinates matrix
	131	:_matrix_i2v: item to view coordinates matrices
	132	:_matrix_v2i: view to item coordinates matrices
	133	:_sort_key: used to sort items
129	134	"""
130	135
…	…
135	140	self._constraints = []
136	141
	142	# used by gaphas.canvas.Canvas to hold conversion matrices
137	143	self._matrix_i2c = None
138	144	self._matrix_2ci = None
139		self._matrix_i2v = {}
140		self._matrix_v2i = {}
141
	145
	146	# used by gaphas.view.View to hold item 2 view matrices (view=key)
	147	self._matrix_i2v = WeakKeyDictionary()
	148	self._matrix_v2i = WeakKeyDictionary()
	149
	150	# Used by gaphas.sorter.Sorter to order items fast.
142	151	self._sort_key = None
143	152

r1732	r1839
4	4
5	5	Matrix
6		------~~--------~~
7		Small utility class wrapping cairo.Matrix. The ~~UndoableMatrix~~ class
	6	------
	7	Small utility class wrapping cairo.Matrix. The `Matrix` class
8	8	adds state preservation capabilities.
9	9	"""

r1838	r1839
639	639	def do_unrealize(self):
640	640	if self.canvas:
	641	# Although Item._matrix_{i2v\|v2i} keys are automatically removed
	642	# (weak refs), better do it explicitly to be sure.
641	643	for item in self.canvas.get_all_items():
642	644	try: