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comparison pyink/domview.py @ 1302:c53331c55a23

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Refactory domview to more clear responsibilities
author Thinker K.F. Li <thinker@codemud.net>
date Wed, 19 Jan 2011 10:01:09 +0800
parents 18af917cf855
children 8c0a4684c1f7
comparison
equal deleted inserted replaced
1301:18af917cf855 1302:c53331c55a23
130 130
131 ## \brief A mix-in for class domview for management of components. 131 ## \brief A mix-in for class domview for management of components.
132 # 132 #
133 class component_manager(object): 133 class component_manager(object):
134 def __init__(self): 134 def __init__(self):
135 self._components_node = None
135 self._components = [] 136 self._components = []
136 self._comp_names = set() 137 self._comp_names = set()
137 self._main_comp = None 138 self._main_comp = None
138 self._cur_comp = None 139 self._cur_comp = None
139 self._cur_timeline = None 140 self._cur_timeline = None
167 comp.parse_timelines() 168 comp.parse_timelines()
168 169
169 self._components.append(comp) 170 self._components.append(comp)
170 comp_names.add(child_name) 171 comp_names.add(child_name)
171 pass 172 pass
173 pass
174
175 ## \brief To initialize subtree of metadata.
176 #
177 # This method is called by domview._init_metadata().
178 #
179 def _component_manager_init_metadata(self):
180 for n in self._metadata_node.childList():
181 if n.name() == 'ns0:components':
182 self._components_node = n
183 break
184 pass
185 else:
186 components_node = self._doc.createElement("ns0:components")
187 node.appendChild(components_node)
188 self._components_node = components_node
189 pass
190 pass
191
192 def _start_component_manager(self):
193 self._component_manager_init_metadata()
194 self._set_main_component()
195 self._parse_components()
172 pass 196 pass
173 197
174 def all_comp_names(self): 198 def all_comp_names(self):
175 return list(self._comp_names) 199 return list(self._comp_names)
176 200
234 def switch_timeline(self, timeline_name): 258 def switch_timeline(self, timeline_name):
235 tl = self._cur_comp.get_timeline(timeline_name) 259 tl = self._cur_comp.get_timeline(timeline_name)
236 self._cur_timeline = tl 260 self._cur_timeline = tl
237 self._scenes_node = tl.scenes_node # of class domview 261 self._scenes_node = tl.scenes_node # of class domview
238 262
239 self._monitor_rescan() # from domview_monitor 263 self.reset() # from domview
240 pass 264 pass
241 265
242 def add_timeline(self, timeline_name): 266 def add_timeline(self, timeline_name):
243 self._cur_comp.add_timeline(timeline_name) 267 self._cur_comp.add_timeline(timeline_name)
244 pass 268 pass
275 self._on_attr_modified, None) 299 self._on_attr_modified, None)
276 pass 300 pass
277 301
278 ## \brief Rescan the tree. 302 ## \brief Rescan the tree.
279 # 303 #
280 def _monitor_rescan(self): 304 def _monitor_reparse(self):
281 self._maxframe = 0 305 self._maxframe = 0
282 self._id2node = {} 306 self._id2node = {}
283 self._group2scene = {} 307 self._group2scene = {}
284 308
285 self._collect_node_ids() 309 self._collect_node_ids()
553 # 577 #
554 # This class maintains layers information, and provides functions to create, 578 # This class maintains layers information, and provides functions to create,
555 # change and destroy scene node and scene group. A scene node is a 'ns0:scene' 579 # change and destroy scene node and scene group. A scene node is a 'ns0:scene'
556 # in 'ns0:scenes' tag. A scene group is respective 'svg:g' for a scene. 580 # in 'ns0:scenes' tag. A scene group is respective 'svg:g' for a scene.
557 # 581 #
558 class domview(domview_monitor): 582 class domview(domview_monitor, component_manager):
559 # Declare variables, here, for keeping tracking 583 # Declare variables, here, for keeping tracking
560 _doc = None 584 _doc = None
561 _root = None 585 _root = None
562 586
563 def __init__(self, *args, **kws): 587 def __init__(self, *args, **kws):
564 super(domview, self).__init__() 588 super(domview, self).__init__()
589 self._metadata_node = None
590 self._scenes_node = None
565 pass 591 pass
566 592
567 ## \brief Create a scenes node if not existed. 593 ## \brief Create a scenes node if not existed.
568 # 594 #
569 def _init_metadata(self): 595 def _init_metadata(self):
572 break 598 break
573 pass 599 pass
574 else: 600 else:
575 raise RuntimeError, \ 601 raise RuntimeError, \
576 'can not find <svg:metadata> node in the document' 602 'can not find <svg:metadata> node in the document'
603
604 self._metadata_node = node
577 605
578 for n in node.childList(): 606 for n in node.childList():
579 if n.name() == 'ns0:scenes': 607 if n.name() == 'ns0:scenes':
580 self._scenes_node = n 608 self._scenes_node = n
581 break 609 break
585 self._root.setAttribute("xmlns:ns0", ns) 613 self._root.setAttribute("xmlns:ns0", ns)
586 scenes_node = self._doc.createElement("ns0:scenes") 614 scenes_node = self._doc.createElement("ns0:scenes")
587 node.appendChild(scenes_node) 615 node.appendChild(scenes_node)
588 self._scenes_node = scenes_node 616 self._scenes_node = scenes_node
589 pass 617 pass
590
591 for n in node.childList():
592 if n.name() == 'ns0:components':
593 self._components_node = n
594 break
595 pass
596 else:
597 components_node = self._doc.createElement("ns0:components")
598 node.appendChild(components_node)
599 self._components_node = components_node
600 pass
601 pass 618 pass
602 619
603 def _parse_all_layers(self): 620 def _parse_all_layers(self):
604 root = self._root 621 root = self._root
605 layers = self._layers 622 layers = self._layers
619 def handle_doc_root(self, doc, root): 636 def handle_doc_root(self, doc, root):
620 self._doc = doc 637 self._doc = doc
621 self._root = root 638 self._root = root
622 self._layers = [] 639 self._layers = []
623 640
624 self._start_monitor() # start domview_monitor 641 self._start_monitor() # from domview_monitor
625 self._init_metadata() 642 self._init_metadata()
643 self._start_component_manager() # from component_manager
626 self._parse_all_layers() 644 self._parse_all_layers()
627 pass 645 pass
628 646
629 def reset(self): 647 def reset(self):
648 self._monitor_reparse() # from domview_monitor
630 self._layers = [] 649 self._layers = []
631 self._parse_all_layers() 650 self._parse_all_layers()
632 pass 651 pass
633 652
634 def dumpattr(self, n): 653 def dumpattr(self, n):