Mercurial > MadButterfly

annotate pyink/consistency.py @ 1299:6949e2b6cae2

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Add unlink clone checker. - Monitor changes of DOM-tree of the document - Unlinking a clone is actually removing the clone and copying nodes from the source. - Copy value of ID of a node to saved_id to track source of copy nodes. - For a new node with 'saved_id' is a copy of another node. - Copy vulae of 'saved_id' to 'ns0:duplicate-src' to keep the source - Change value of 'saved_id' to the value of ID of the node for later copying. - For a new node without 'saved_id' is not a copy of another node. - only set 'saved_id' to the value of its ID.
author Thinker K.F. Li <thinker@codemud.net>
date Sun, 16 Jan 2011 16:13:37 +0800
parents e12472f8eef3
children 194c7a831083
rev   line source
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07e0cb1e051d Add class consistency_checker for domview_ui.
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1 import dom_event
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2 from data_monitor import data_monitor
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3 import traceback
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4686f3131f2a Leave a blank between import statements at head
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4
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5 ## \brief Check consistency of a DOM-tree associated with a domview_ui.
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6 #
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7 # This is a co-worker of \ref domview_ui to check DOM-tree and make
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8 # sure consistency of scenes, scene groups in the DOM-tree. It also
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9 # updates layer list of \ref domview_ui to reflect last changes of the
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10 # DOM-tree.
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11 #
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12 # Since it is a consistency checker, it must well understanding
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13 # structure that expected by domview_ui. So, this class is highly
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14 # closed to the internal of \ref domview_ui. It is separated from
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15 # domview_ui for collecting related logic and functions in a place to
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16 # set up a clear boundary from the functions provided by \ref
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17 # domview_ui.
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18 #
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19 # This class is expected to access private variables of \ref
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20 # domview_ui. But, use public interface of domview_ui if possible.
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21 #
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22 # This class is also monitored by \ref data_monitor to monitor the
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23 # accessing to domview_ui.
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24 #
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25 class consistency_checker(object):
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26 __metaclass__ = data_monitor
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27
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28 def __init__(self, domview_ui):
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29 self._domviewui = domview_ui
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30 self._locker = self._domviewui
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31 self._doc = None
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32 self._root = None
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33 pass
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34
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35 def _start_check(self):
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36 doc = self._doc
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37 dom_event.addEventListener(doc, 'DOMNodeInserted',
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38 self.do_insert_node, None)
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39 dom_event.addEventListener(doc, 'DOMNodeRemoved',
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40 self.do_remove_node, None)
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41 dom_event.addEventListener(doc, 'DOMAttrModified',
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42 self.do_attr_modified, None)
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43 pass
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44
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45 ## \brief Handle a new document.
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46 #
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47 # This method is called by domview_ui.handle_doc_root().
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48 #
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49 def handle_doc_root(self, doc, root):
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50 self._doc = doc
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51 self._root = root
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52
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53 self._start_check()
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54 pass
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55
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56 def _insert_node_recursive(self, node, child):
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57 child_name = child.name()
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58
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59 if child_name == 'ns0:scene':
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60 scene_group_id = child.getAttribute('ref')
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61 try:
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62 scene_group = self._domviewui.get_node(scene_group_id)
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63 except KeyError: # can not find associated scene group.
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64 pass
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65 else:
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66 self._domviewui.manage_scene_node(child, scene_group)
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67 pass
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68 elif child_name == 'svg:g':
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69 if node.name() == 'svg:svg':
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70 self._domviewui.manage_layer_group(child)
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71 pass
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72 pass
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73
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74 for cchild in child.childList():
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75 self._remove_node_recursive(child, cchild)
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76 pass
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77 pass
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78
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79 def _remove_node_recursive(self, node, child):
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ca301f6abef7 Support undo for insert key frame/rm keyframe. We will refresh all layers and scenes since it is not feasible to collect these changes and update the layers and scenes. We may scan two level only in the future to improve the performance.
wycc
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80 return
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81 for cchild in child.childList():
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82 self._remove_node_recursive(child, cchild)
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83 pass
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84
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85 child_name = child.name()
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86 if child_name not in ('ns0:scene', 'svg:g'):
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87 return
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88
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89 #
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90 # Remove the key frame assocated with a removed scene node or
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91 # scene group if we can find the key frame.
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92 #
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93 if child_name == 'ns0:scene':
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94 try:
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95 group_id = child.getAttribute('ref')
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96 except:
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97 return
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98 elif child_name == 'svg:g':
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99 try:
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100 group_id = child.getAttribute('id')
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101 except:
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102 return
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103 pass
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104
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105 try:
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106 layer_idx, (start, end, tween_type) = \
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107 self._domviewui.find_key_from_group(group_id)
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108 except ValueError:
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109 pass
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110 else: # We have found the key frame.
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111 self._domviewui.unmark_key(layer_idx, start)
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112 return
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113
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114 #
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115 # Remove layers
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116 #
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117 if child_name == 'svg:g':
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118 try:
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119 layer_idx = self._domviewui.find_layer_from_group(group_id)
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120 except ValueError:
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121 pass
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122 else: # It is a layer group
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123 self._domviewui.rm_layer(layer_idx)
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124 pass
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125 pass
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126 pass
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127
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128 def do_insert_node(self, node, child):
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129 self._insert_node_recursive(node, child)
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
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130 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
131
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
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132 def do_remove_node(self, node, child):
1257
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
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133 self._remove_node_recursive(node, child)
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07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
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134 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
135
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
136 def do_attr_modified(self, node, name, old_value, new_value):
1280
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
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137 if node.name() == 'ns0:scene':
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
138 if name == 'ref':
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
139 try:
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
140 if new_value:
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
141 raise ValueError('The new_value is not empty')
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
142 self._domviewui.reset()
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
143 except:
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
144 traceback.print_exc()
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
145 pass
1265
ca301f6abef7 Support undo for insert key frame/rm keyframe. We will refresh all layers and scenes since it is not feasible to collect these changes and update the layers and scenes. We may scan two level only in the future to improve the performance.
wycc
parents: 1262
diff changeset
146 pass
1280
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
147 elif name == 'end' or name == 'start':
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
148 self._domviewui.reset()
434f588fcde4 Handle the change of attribute 'start' and 'end'. We do reset here. However, we should be able to optimize it latter to update the scenes directly.
wycc
parents: 1279
diff changeset
149 pass
1281
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
150 elif name == 'type':
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
151 self._domviewui.reset()
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
152 pass
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
153 pass
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
154 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
155 pass