292 lines
11 KiB
Python
292 lines
11 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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import fluents
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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_enable_tree_lines(True)
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self.set_headers_visible(False)
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self.get_hadjustment().set_value(0)
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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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# Activate context menu
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self.menu = NavigatorMenu(self)
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self.connect('popup_menu', self.popup_menu)
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self.connect('button_press_event', self.on_mouse_event)
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self.textrenderer = textrenderer = gtk.CellRendererText()
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pixbufrenderer = gtk.CellRendererPixbuf()
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self.object_col = gtk.TreeViewColumn('Object')
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self.object_col.pack_start(pixbufrenderer,expand=False)
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self.object_col.pack_start(textrenderer,expand=False)
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self.object_col.set_attributes(textrenderer, cell_background=3, foreground=4, text=0)
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self.object_col.set_attributes(pixbufrenderer, pixbuf=5)
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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,
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[("GTK_TREE_MODEL_ROW", gtk.TARGET_SAME_APP, 7)],
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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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if not paths: # a plot is marked: do nothing
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return
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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), 6, time.time())
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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,6), self.data_tree.get_value(iter,2))
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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_name(), 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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elif obj == None:
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children = []
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i = self.data_tree.iter_children(tree_iter)
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while i:
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child = self.data_tree.get(i, 2)[0]
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if isinstance(child, plots.Plot):
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children.append(child)
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i = self.data_tree.iter_next(i)
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self.app.change_plots(children)
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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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def popup_menu(self, *rest):
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self.menu.popup(None, None, None, 0, 0)
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def on_mouse_event(self, widget, event):
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path = widget.get_path_at_pos(int(event.x), int(event.y))
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iter = None
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if path:
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iter = self.data_tree.get_iter(path[0])
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obj = self.data_tree.get_value(iter, 2)
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else:
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obj = None
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if isinstance(obj, dataset.Dataset):
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self.menu.set_dataset(obj, iter)
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else:
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self.menu.set_dataset(None, iter)
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if event.button == 3:
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self.menu.popup(None, None, None, event.button, event.time)
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class NavigatorMenu(gtk.Menu):
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def __init__(self, navigator):
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gtk.Menu.__init__(self)
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self.navigator = navigator
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self.dataset = None
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self.tree_iter = None
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# Populate menu
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self.load_item = gtk.MenuItem('Load dataset')
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self.load_item.connect('activate', self.on_load_dataset, navigator)
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self.append(self.load_item)
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self.load_item.show()
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self.save_item = gtk.MenuItem('Save dataset')
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self.save_item.connect('activate', self.on_save_dataset, navigator)
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self.append(self.save_item)
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self.save_item.show()
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# Build plot menu
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self.plot_menu = gtk.Menu()
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self.plot_image_item = gtk.MenuItem('Image Plot')
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self.plot_image_item.connect('activate', self.on_plot_image, navigator)
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self.plot_menu.append(self.plot_image_item)
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self.plot_image_item.show()
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self.plot_hist_item = gtk.MenuItem('Histogram')
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self.plot_hist_item.connect('activate', self.on_plot_hist, navigator)
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self.plot_menu.append(self.plot_hist_item)
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self.plot_hist_item.show()
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self.plot_item = gtk.MenuItem('Plot')
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self.append(self.plot_item)
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self.plot_item.set_submenu(self.plot_menu)
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self.plot_item.show()
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def set_dataset(self, ds, it):
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self.dataset = ds
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self.tree_iter = it
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if ds == None:
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self.save_item.set_property('sensitive', False)
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self.plot_item.set_property('sensitive', False)
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else:
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self.save_item.set_property('sensitive', True)
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self.plot_item.set_property('sensitive', True)
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def on_load_dataset(self, item, navigator):
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dialog = gtk.FileChooserDialog('Load dataset')
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dialog.set_action(gtk.FILE_CHOOSER_ACTION_OPEN)
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dialog.add_buttons(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, gtk.STOCK_OPEN, gtk.RESPONSE_OK)
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dialog.set_select_multiple(True)
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retval = dialog.run()
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if retval in [gtk.RESPONSE_CANCEL, gtk.RESPONSE_DELETE_EVENT]:
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pass
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elif retval == gtk.RESPONSE_OK:
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for filename in dialog.get_filenames():
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fd = open(filename)
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ds = dataset.read_ftsv(fd)
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fd.close()
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if isinstance(ds, dataset.GraphDataset):
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icon = fluents.icon_factory.get("graph_dataset")
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elif isinstance(ds, dataset.CategoryDataset):
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icon = fluents.icon_factory.get("category_dataset")
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else:
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icon = fluents.icon_factory.get("dataset")
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project = navigator.project
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project.add_dataset(ds)
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project.data_tree_insert(None, ds.get_name(), ds, None, "black", icon)
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else:
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print "unknown; ", retval
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dialog.destroy()
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def on_save_dataset(self, item, navigator):
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dialog = gtk.FileChooserDialog('Save dataset')
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dialog.set_action(gtk.FILE_CHOOSER_ACTION_SAVE)
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dialog.add_buttons(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, gtk.STOCK_SAVE, gtk.RESPONSE_OK)
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dialog.set_current_name("%s.ftsv" % self.dataset.get_name())
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retval = dialog.run()
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if retval in [gtk.RESPONSE_CANCEL, gtk.RESPONSE_DELETE_EVENT]:
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logger.log("debug", "Cancelled save dataset")
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elif retval == gtk.RESPONSE_OK:
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logger.log("debug", "Saving dataset as: %s" % dialog.get_filename())
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fd = open(dialog.get_filename(), 'w')
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dataset.write_ftsv(fd, self.dataset)
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fd.close()
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else:
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print "unknown; ", retval
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dialog.destroy()
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def on_plot_image(self, item, navigator):
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project = navigator.project
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plot = plots.ImagePlot(self.dataset, name='Image Plot')
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icon = fluents.icon_factory.get("line_plot")
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project.data_tree_insert(self.tree_iter, 'Image Plot', plot, None, "black", icon)
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# fixme: image plot selections are not well defined
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#plot.set_selection_listener(project.set_selection)
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#project._selection_observers.append(plot)
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def on_plot_hist(self, item, navigator):
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project = navigator.project
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plot = plots.HistogramPlot(self.dataset, name='Histogram')
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icon = fluents.icon_factory.get("line_plot")
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project.data_tree_insert(self.tree_iter, 'Histogram', plot, None, "black", icon)
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plot.set_selection_listener(project.set_selection)
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project._selection_observers.append(plot)
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