Mercurial > MadButterfly

annotate pyink/consistency.py @ 1532:4a92b639a1cd

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Clear selection set when switching current scene. To clear selection set after switching away from current to another scene. It avoids Inkscape select on nodes they are not saw after switching.
author Thinker K.F. Li <thinker@codemud.net>
date Fri, 30 Sep 2011 12:31:33 +0800
parents 0b5ee9c90af7
children
rev   line source
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07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
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1 import dom_event
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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.
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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
07e0cb1e051d Add class consistency_checker for domview_ui.
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14 # closed to the internal of \ref domview_ui. It is separated from
07e0cb1e051d Add class consistency_checker for domview_ui.
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15 # domview_ui for collecting related logic and functions in a place to
07e0cb1e051d Add class consistency_checker for domview_ui.
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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',
07e0cb1e051d Add class consistency_checker for domview_ui.
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38 self.do_insert_node, None)
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39 dom_event.addEventListener(doc, 'DOMNodeRemoved',
07e0cb1e051d Add class consistency_checker for domview_ui.
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40 self.do_remove_node, None)
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41 dom_event.addEventListener(doc, 'DOMAttrModified',
07e0cb1e051d Add class consistency_checker for domview_ui.
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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
1335
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73 elif child_name == 'ns0:scenes':
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74 self._domviewui.refresh_timelines()
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75 return
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76
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77 for cchild in child.childList():
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78 self._remove_node_recursive(child, cchild)
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79 pass
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80 pass
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81
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82 def _remove_node_recursive(self, node, child):
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83 for cchild in child.childList():
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84 self._remove_node_recursive(child, cchild)
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85 pass
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86
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87 child_name = child.name()
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88 if child_name not in ('ns0:scenes', 'ns0:scene', 'svg:g'):
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89 return
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90
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91 #
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92 # Remove the key frame assocated with a removed scene node or
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93 # scene group if we can find the key frame.
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94 #
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95 if child_name == 'ns0:scene':
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96 try:
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97 group_id = child.getAttribute('ref')
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98 except:
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99 return
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100 elif child_name == 'svg:g':
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101 try:
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102 group_id = child.getAttribute('id')
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103 except:
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104 return
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105 pass
1335
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106 elif child_name == 'ns0:scenes':
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107 self._domviewui.refresh_timelines()
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108 return
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109
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110 try:
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111 layer_idx, (start, end, tween_type) = \
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112 self._domviewui.find_key_from_group(group_id)
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113 except ValueError:
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114 pass
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115 else: # We have found the key frame.
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116 self._domviewui.unmark_key(layer_idx, start)
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117 return
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118
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119 #
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120 # Remove layers
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121 #
6177f5d0ef01 Remove the layer when a layer group being removed.
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122 if child_name == 'svg:g':
6177f5d0ef01 Remove the layer when a layer group being removed.
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123 try:
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124 layer_idx = self._domviewui.find_layer_from_group(group_id)
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125 except ValueError:
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126 pass
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127 else: # It is a layer group
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128 self._domviewui.rm_layer(layer_idx)
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129 pass
1257
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
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130 pass
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
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131 pass
027cd060d9ba Remove the key frame if associated scene node or scene group being removed.
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
132
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
133 def do_insert_node(self, node, child):
1262
2f861eea1214 Make domview_ui manages scenes and layers found by checker
Thinker K.F. Li <thinker@codemud.net>
parents: 1261
diff changeset
134 self._insert_node_recursive(node, child)
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
135 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
136
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
137 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
diff changeset
138 self._remove_node_recursive(node, child)
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
139 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
140
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
141 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
diff changeset
142 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
143 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
144 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
145 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
146 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
147 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
148 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
149 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
150 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
151 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
152 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
153 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
154 pass
1281
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
155 elif name == 'type':
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
156 self._domviewui.reset()
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
157 pass
e12472f8eef3 Handle type attribute to implemen the tween type change action undo.
wycc
parents: 1280
diff changeset
158 pass
1335
194c7a831083 Consistent checking for components and timelines
Thinker K.F. Li <thinker@codemud.net>
parents: 1281
diff changeset
159 elif node.name() == 'ns0:scenes' and name == 'name':
194c7a831083 Consistent checking for components and timelines
Thinker K.F. Li <thinker@codemud.net>
parents: 1281
diff changeset
160 self._domviewui.refresh_timelines()
194c7a831083 Consistent checking for components and timelines
Thinker K.F. Li <thinker@codemud.net>
parents: 1281
diff changeset
161 pass
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
162 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
163 pass