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annotate pyink/consistency.py @ 1267:2318a094a277

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Move function around to separate do_* from others
author Thinker K.F. Li <thinker@codemud.net>
date Wed, 12 Jan 2011 20:42:31 +0800
parents ca301f6abef7
children cd848c2ec29f
rev   line source
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07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
1 import dom_event
07e0cb1e051d Add class consistency_checker for domview_ui.
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parents:
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2 from data_monitor import data_monitor
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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
parents: 1262
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3 import traceback
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07e0cb1e051d Add class consistency_checker for domview_ui.
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4 ## \brief Check consistency of a DOM-tree associated with a domview_ui.
07e0cb1e051d Add class consistency_checker for domview_ui.
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5 #
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6 # This is a co-worker of \ref domview_ui to check DOM-tree and make
07e0cb1e051d Add class consistency_checker for domview_ui.
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7 # sure consistency of scenes, scene groups in the DOM-tree. It also
07e0cb1e051d Add class consistency_checker for domview_ui.
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8 # updates layer list of \ref domview_ui to reflect last changes of the
07e0cb1e051d Add class consistency_checker for domview_ui.
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9 # DOM-tree.
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10 #
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11 # Since it is a consistency checker, it must well understanding
07e0cb1e051d Add class consistency_checker for domview_ui.
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12 # structure that expected by domview_ui. So, this class is highly
07e0cb1e051d Add class consistency_checker for domview_ui.
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13 # closed to the internal of \ref domview_ui. It is separated from
07e0cb1e051d Add class consistency_checker for domview_ui.
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14 # domview_ui for collecting related logic and functions in a place to
07e0cb1e051d Add class consistency_checker for domview_ui.
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15 # set up a clear boundary from the functions provided by \ref
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16 # domview_ui.
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17 #
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18 # This class is expected to access private variables of \ref
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19 # domview_ui. But, use public interface of domview_ui if possible.
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20 #
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21 # This class is also monitored by \ref data_monitor to monitor the
07e0cb1e051d Add class consistency_checker for domview_ui.
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22 # accessing to domview_ui.
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23 #
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24 class consistency_checker(object):
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25 __metaclass__ = data_monitor
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26
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27 def __init__(self, domview_ui):
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28 self._domview = domview_ui
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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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29 self._locker = self._domview
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30 self._doc = None
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31 self._root = None
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32 pass
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33
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34 def _start_check(self):
07e0cb1e051d Add class consistency_checker for domview_ui.
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35 doc = self._doc
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36 dom_event.addEventListener(doc, 'DOMNodeInserted',
07e0cb1e051d Add class consistency_checker for domview_ui.
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37 self.do_insert_node, None)
07e0cb1e051d Add class consistency_checker for domview_ui.
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38 dom_event.addEventListener(doc, 'DOMNodeRemoved',
07e0cb1e051d Add class consistency_checker for domview_ui.
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39 self.do_remove_node, None)
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40 dom_event.addEventListener(doc, 'DOMAttrModified',
07e0cb1e051d Add class consistency_checker for domview_ui.
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41 self.do_attr_modified, None)
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42 pass
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43
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44 ## \brief Handle a new document.
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45 #
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46 # This method is called by domview_ui.handle_doc_root().
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47 #
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48 def handle_doc_root(self, doc, root):
07e0cb1e051d Add class consistency_checker for domview_ui.
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49 self._doc = doc
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50 self._root = root
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51
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52 self._start_check()
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53 pass
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54
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55 def _insert_node_recursive(self, node, child):
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56 child_name = child.name()
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57
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58 if child_name == 'ns0:scene':
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59 scene_group_id = child.getAttribute('ref')
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60 try:
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61 scene_group = self._domview.get_node(scene_group_id)
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62 except KeyError: # can not find associated scene group.
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63 pass
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64 else:
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65 self._domview.manage_scene_node(child, scene_group)
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66 pass
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67 elif child_name == 'svg:g':
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68 if node.name() == 'svg:svg':
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69 self._domview.manage_layer_group(child)
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70 pass
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71 pass
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72
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73 for cchild in child.childList():
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74 self._remove_node_recursive(child, cchild)
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75 pass
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76 pass
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77
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78 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
parents: 1262
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79 return
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80 for cchild in child.childList():
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81 self._remove_node_recursive(child, cchild)
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82 pass
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83
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84 child_name = child.name()
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85 if child_name not in ('ns0:scene', 'svg:g'):
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86 return
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87
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
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88 #
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89 # Remove the key frame assocated with a removed scene node or
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90 # scene group if we can find the key frame.
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91 #
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92 if child_name == 'ns0:scene':
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93 try:
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94 group_id = child.getAttribute('ref')
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95 except:
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96 return
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97 elif child_name == 'svg:g':
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parents: 1253
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98 try:
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99 group_id = child.getAttribute('id')
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100 except:
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101 return
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parents: 1253
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102 pass
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103
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104 try:
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105 layer_idx, (start, end, tween_type) = \
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106 self._domview.find_key_from_group(group_id)
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107 except ValueError:
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108 pass
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109 else: # We have found the key frame.
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
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parents: 1253
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110 self._domview.unmark_key(layer_idx, start)
1261
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111 return
6177f5d0ef01 Remove the layer when a layer group being removed.
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112
6177f5d0ef01 Remove the layer when a layer group being removed.
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113 #
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114 # Remove layers
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115 #
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116 if child_name == 'svg:g':
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117 try:
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118 layer_idx = self._domview.find_layer_from_group(group_id)
6177f5d0ef01 Remove the layer when a layer group being removed.
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119 except ValueError:
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120 pass
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121 else: # It is a layer group
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122 self._domview.rm_layer(layer_idx)
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123 pass
1257
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
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124 pass
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
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125 pass
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parents: 1253
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126
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127 def do_insert_node(self, node, child):
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128 self._insert_node_recursive(node, child)
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07e0cb1e051d Add class consistency_checker for domview_ui.
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parents:
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129 pass
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parents:
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130
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
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131 def do_remove_node(self, node, child):
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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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132 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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133 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
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134
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
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135 def do_attr_modified(self, node, name, old_value, new_value):
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
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136 if node.name() == 'ns0:scene' and name == 'ref':
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
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137 try:
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
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138 if new_value:
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
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139 raise ValueError('The new_value is not empty')
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
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140 self._domview.reset()
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
141 except:
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
142 traceback.print_exc()
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
143 pass
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
144 pass
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07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
145 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
146 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
147
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
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148 def lock(self):
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
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149 self._domview.lock()
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
150 pass
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
151
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
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152 def unlock(self):
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
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153 self._domview.unlock()
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
154 pass