poor: WIP: new design of the visualisation

poor_mans_visualisation.py

@@ -2,6 +2,7 @@
 
 from birdvisu.annotations import AnnotatedTopology, AnnotatorID
 from birdvisu.annotations.analysis import TopologyDifference, ShortestPathTree
+from birdvisu.annotations.layout import MegaStyler
 from birdvisu.ospfsock import BirdSocketConnection
 from birdvisu.providers import BirdSocketTopologyProvider, OspfFileTopologyProvider, OspfFileParseError
 from birdvisu.topo_v3 import TopologyV3, VertexID
@@ -100,27 +101,19 @@ class MainWindow(QtWidgets.QMainWindow):
 		MoveTopology = auto()
 		ShortestPath = auto()
 
-	def __init__(self, *a, **kwa):
-		super().__init__(*a, **kwa)
-		self.ref_topo_provider = None
-		self.cur_topo_provider = None
-		self.annotators = self.get_annotators()
-		self.annot_topo = None
-		self.highlighter = None
-		self.tool = self.Tool.MoveTopology
-		self.scene = QtWidgets.QGraphicsScene()
-		self.view = QtWidgets.QGraphicsView(self.scene)
-		self.view.setDragMode(self.view.DragMode.ScrollHandDrag)
-		self.setCentralWidget(self.view)
-		self.statusbar = self.statusBar()
-		self.statusbar.showMessage('Hello!')
-
+	def create_menus(self):
+		print('Creating menus…')
 		self.menubar = self.menuBar()
 		mode_menu = self.menubar.addMenu('&Mode')
 		short_path_act = QtGui.QAction("Sh. path &DAG", self)
 		short_path_act.triggered.connect(self.shortestPathMode)
 		mode_menu.addAction(short_path_act)
 
+		# Hack!
+		autoload_act = QtGui.QAction("&Load automatically", self)
+		autoload_act.triggered.connect(self.autoLoad)
+		self.menubar.addAction(autoload_act)
+
 		topo_menu = self.menubar.addMenu('&Topology')
 		open_ref_act = QtGui.QAction("&Load reference", self)
 		open_ref_act.triggered.connect(self.openRefTopology)
@@ -138,10 +131,38 @@ class MainWindow(QtWidgets.QMainWindow):
 		refresh_act.triggered.connect(self.refreshTopologies)
 		topo_menu.addAction(refresh_act)
 
-	def get_annotators(self):
-		return [
-			AnnotatorID(TopologyDifference),
-			AnnotatorID(ShortestPathTree, (VertexID(
+	def __init__(self, *a, **kwa):
+		super().__init__(*a, **kwa)
+		self.ref_topo_provider = None
+		self.cur_topo_provider = None
+		self.set_initial_annotators()
+		self.annot_topo = None
+		self.highlighter = None
+		self.tool = self.Tool.MoveTopology
+		self.scene = QtWidgets.QGraphicsScene()
+		self.view = QtWidgets.QGraphicsView(self.scene)
+		self.view.setDragMode(self.view.DragMode.ScrollHandDrag)
+		self.setCentralWidget(self.view)
+		self.statusbar = self.statusBar()
+		self.statusbar.showMessage('Hello!')
+		self.create_menus()
+
+	#Hack
+	@Slot()
+	def autoLoad(self):
+		print('Auto-loading…')
+		self.ref_topo_provider = OspfFileTopologyProvider('./empty.ospf')
+		self.cur_topo_provider = BirdSocketTopologyProvider(instance='gennet4', area=1, version=2)
+		self.refreshTopologies()
+
+
+	def set_initial_annotators(self):
+		# We have three kinds of annotators:
+		# - The essential analytic ones (TopologyDifference)
+		# - The one that describes the current tool (when that is Annotator backed, like for ShortestPathTree)
+		# - The styling ones, that actually help visualise stuff (MegaStyler)
+		self.essential_annotators = [AnnotatorID(TopologyDifference)]
+		self.current_annotators = [AnnotatorID(ShortestPathTree, (VertexID(
 				family=None,
 				is_router=True,
 				address=None,
@@ -150,6 +171,7 @@ class MainWindow(QtWidgets.QMainWindow):
 				discriminator=None
 				), 'current')),
 			]
+		self.styling_annotators = [AnnotatorID(MegaStyler, tuple(self.essential_annotators + self.current_annotators))]
 
 	@Slot()
 	def shortestPathMode(self):
@@ -222,15 +244,34 @@ class MainWindow(QtWidgets.QMainWindow):
 		combined_topology = TopologyV3.combine_topologies(reference=ref_topo, current=cur_topo)
 		combined_topology.freeze()
 		self.annot_topo = AnnotatedTopology(combined_topology)
-		for ann_id in self.annotators:
+		for ann_id in self.essential_annotators + self.current_annotators + self.styling_annotators:
 			self.annot_topo.run_annotator(ann_id)
 		# Draw it
-		self.set_current_highlighter()
-		self.ad_hoc_draw_visu()
+		self.draw_visu()
+
+	def draw_visu(self):
+		# just take the result of the MegaStyler and create vertices according to the style.
+		megastyler = self.styling_annotators[-1]
+		assert megastyler.annotator == MegaStyler
+		msann = self.annot_topo.annotations[megastyler]
+		self.graphicsitems: dict[VertexID, QGraphicsItem] = dict()
+		self.topologyitems: dict[QGraphicsItem, VertexID|Edge] = dict()
+		for vtxid, style in msann.for_vertex.items():
+			gritem = self.create_vertex(vtxid, style)
+			self.graphicsitems[vtxid] = gritem
+			self.topologyitems[gritem] = vtxid
+			self.scene.addItem(gritem)
+		for edge, style in msann.for_edge.items():
+			gritem = self.create_edge(edge, style)
+			self.graphicsitems[edge] = gritem
+			self.topologyitems[gritem] = edge
+			self.scene.addItem(gritem)
+
+	def create_vertex(self, vtxid, style):
+		...
 	
-	def set_current_highlighter(self):
-		# TODO!
-		self.highlighter = self.annotators[-1]
+	def create_edge(self, edge, style):
+		...
 	
 	def ad_hoc_draw_visu(self):
 		shapes = dict()