137 lines
4.8 KiB
Python
137 lines
4.8 KiB
Python
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import gtk
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import gobject
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import plots
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import time
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from system import dataset, logger, plots, project, workflow
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class NavigatorView (gtk.TreeView):
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def __init__(self, project, app):
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self.project = project
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self.app = app
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if project:
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self.data_tree = project.data_tree
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else:
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self.data_tree = None
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gtk.TreeView.__init__(self)
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# various properties
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self.set_headers_visible(False)
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# Selection Mode
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self.get_selection().set_mode(gtk.SELECTION_MULTIPLE)
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self.get_selection().set_select_function(self.is_selectable)
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self.get_selection().connect('changed',self.selection_changed_handler)
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self._previous_selection = []
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# Setting up TextRenderers etc
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# self.connect('cursor_changed', self.cursor_changed_handler)
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self.connect('row_activated', self.row_activated_handler)
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textrenderer = gtk.CellRendererText()
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self.object_col = gtk.TreeViewColumn('Object')
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self.object_col.pack_start(textrenderer)
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self.object_col.set_attributes(textrenderer, cell_background=3, foreground = 4, text=0)
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self.append_column(self.object_col)
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# send events to plots / itself
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self.enable_model_drag_source(gtk.gdk.BUTTON1_MASK,[("GTK_TREE_MODEL_ROW",gtk.TARGET_SAME_APP,7)], gtk.gdk.ACTION_LINK | gtk.gdk.ACTION_MOVE)
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self.connect("drag-data-get",self.slot_drag_data)
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logger.log('debug', 'Initializing navigator window.')
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# sets data for drag event.
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def slot_drag_data(self,treeview,context,selection,target_id,etime):
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treeselection = treeview.get_selection()
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model, paths = treeselection.get_selected_rows()
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if paths:
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self.data_tree.drag_data_get(paths[0], selection)
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def add_project(self, project):
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self.project = project
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self.data_tree = project.data_tree
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self.set_model(project.data_tree)
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self.data_tree.connect('row-changed',self.row_changed_handler)
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def is_selectable(self,path):
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if self.data_tree:
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obj = self.data_tree.get_value(self.data_tree.get_iter(path),2)
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if not obj:
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return False
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if not isinstance(obj, dataset.Dataset):
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return False
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return True
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# selection changed, setting current_data ojbects
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def selection_changed_handler(self, selection):
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# update prev selection right away in case of multiple events
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model, paths = selection.get_selected_rows()
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tmp = self._previous_selection
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self._previous_selection = paths
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# set timestamp on newly selected objects
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[self.data_tree.set_value(self.data_tree.get_iter(path),5,time.time()) for path in paths if path not in tmp]
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objs = [self.data_tree.get_iter(path) for path in paths]
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objs = [(self.data_tree.get_value(iter,5), self.data_tree.get_value(iter,2)) for iter in objs]
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objs.sort()
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objs = [obj for timestamp, obj in objs]
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# order dataset
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if objs and isinstance(objs[0], dataset.Dataset):
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logger.log('debug', 'Selecting dataset')
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self.project.set_current_data(objs)
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else:
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logger.log('debug', 'Deselecting dataset')
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self.project.set_current_data([])
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# TreeView changed. Set correct focus and colours
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def row_changed_handler(self, treestore, pos, iter):
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obj = treestore.get_value(iter,2)
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type_= treestore.get_value(iter,1)
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if not (treestore.get_value(iter,2) or treestore.get_value(iter,1)):
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return
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self.expand_to_path(pos)
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if isinstance(obj,dataset.Dataset):
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self.set_cursor(pos)
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self.grab_focus()
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def display_data_info(self, data):
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dims = zip(data.get_dim_names(), data.shape)
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dim_text = ", ".join(["%s (%d)" % dim for dim in dims])
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text = """<span weight="bold">Data:</span> %s
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<span weight="bold">Dimensions:</span> %s""" % (data.get_name(), dim_text)
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d = gtk.MessageDialog(flags=(gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT),
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buttons=gtk.BUTTONS_OK)
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d.set_markup(text)
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d.set_default_response(gtk.BUTTONS_OK)
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d.run()
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d.destroy()
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def row_activated_handler(self, widget, path, column):
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tree_iter = self.data_tree.get_iter(path)
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obj = self.data_tree.get_value(tree_iter, 2)
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if isinstance(obj, plots.Plot):
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logger.log('debug', 'Activating plot')
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self.app.change_plot(obj)
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elif isinstance(obj, dataset.Dataset):
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self.display_data_info(obj)
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else:
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t = type(obj)
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logger.log('debug', 'Activated datatype was %s. Don\'t know what to do.' % t)
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