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"""A view of the pipeline with a panel to edit objects.
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# Author: Gael Varoquaux <gael dot varoquaux at normalesup dot org>
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# Copyright (c) 2009, Enthought, Inc.
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# Enthought library imports.
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from enthought.traits.ui.api import Item, View, HSplit, InstanceEditor
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from enthought.traits.ui.menu import Action, Separator
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from enthought.pyface.image_resource import ImageResource
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from enthought.pyface.api import GUI
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from enthought.mayavi.core.adder_node import SceneAdderNode
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from enthought.mayavi.core.scene import Scene
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from enthought.mayavi.preferences.preference_manager_view import \
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preference_manager_view
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from enthought.mayavi.core.ui.engine_view import EngineView, \
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class EngineRichViewHandler(EngineViewHandler):
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""" A handler for the EngineRichView object.
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def init_info(self, info):
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""" Informs the handler what the UIInfo object for a View will be.
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Overridden here to add a callback on the creation of the view.
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super(EngineRichViewHandler, self).init_info(info)
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info.on_trait_change(self.select_selected, 'initialized')
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def select_selected(self, initialized):
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""" Force the tree editor to select the current engine selection,
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and eventually collapse other scenes.
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# We need to explore the editors to find the one we are
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# interested in, and to switch its selection to None, and then
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# back to what we are interested in.
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editors = self.info.ui._editors
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if editors is not None:
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for editor in editors:
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if editor.factory is self.info.object.tree_editor:
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# We switch the selection to None, but we avoid
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# trait callback, to avoid changing the engine's
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tree_editor.set(selected=None, trait_change_notify=False)
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current_selection = self.info.object.engine.current_selection
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GUI.set_trait_later(tree_editor, 'selected', current_selection)
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# If we are selecting a scene, collapse the others
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if isinstance(current_selection, Scene) and \
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hasattr(tree_editor._tree, 'Collapse'):
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# The wx editor can collapse, dunno for the Qt
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for scene in self.info.object.engine.scenes:
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if scene is not current_selection:
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tree_editor._tree.Collapse(
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tree_editor._get_object_nid(scene))
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def _on_dclick(self, object):
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""" Called when a node in the tree editor is double-clicked.
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if isinstance(object, SceneAdderNode):
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self.info.object._perform_new_scene()
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# In this view, we want the dialogs not to be modals, so that
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# the EngineRichView window can be closed while leaving
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# objects dialogs open.
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object.edit_traits(view=object.dialog_view())
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##############################################################################
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# EngineRichView class.
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##############################################################################
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class EngineRichView(EngineView):
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""" A view displaying the engine's object tree, alongside with a
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panel to edit the objects.
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###########################################################################
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# `HasTraits` interface.
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###########################################################################
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def default_traits_view(self):
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"""The default traits view of the Engine View.
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id='mayavi.engine_rich_view.pipeline_view',
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editor=self.tree_editor,
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id='mayavi.engine_rich_view.current_selection',
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editor=InstanceEditor(
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view='current_selection_view'),
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id='enthought.mayavi.engine_rich_view',
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title='Mayavi pipeline',
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toolbar=self.toolbar,
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handler=EngineRichViewHandler)
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def _actions_default(self):
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""" Append a preferences action to the toolbar: this view of the
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engine is meant to be a powerful view giving access to
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all of Mayavi's functionality.
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preferences_action = \
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image=ImageResource('preferences.png',
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search_path=self._image_path),
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tooltip="Modify Mayavi's preferences",
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perform=preference_manager_view.dialog_view,
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actions = super(EngineRichView, self)._actions_default()
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actions.extend((Separator(), preferences_action))
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###########################################################################
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# EngineRichView interface.
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###########################################################################
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def scene_editing_view(self, scene):
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# Selecting an object if good, because it forces the HSplit to
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# choose a sensible split ratio
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for mayavi_scene in self.engine.scenes:
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sc = mayavi_scene.scene
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# Support for the `MlabSceneModel` where the `scene_editor`
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# trait contains the scene.
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s = getattr(sc, 'scene_editor', sc)
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self.engine.current_selection = mayavi_scene
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return self.edit_traits()
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### EOF ######################################################################
added
removed
enthought/mayavi/core/ui/engine_rich_view.py
