Show slack in scheduler GUI info and fix issues introduced yesterday

b_asic/schedule.py

@@ -337,7 +337,10 @@ class Schedule:
 
         (backward_slack, forward_slack) = self.slacks(graph_id)
         if not -backward_slack <= time <= forward_slack:
-            raise ValueError
+            raise ValueError(
+                f"Operation {graph_id} got incorrect move: {time}. Must be"
+                f" between {-backward_slack} and {forward_slack}."
+            )
 
         tmp_start = self._start_times[graph_id] + time
         new_start = tmp_start % self._schedule_time
@@ -354,9 +357,16 @@ class Schedule:
                 prev_available = tmp_prev_available % self._schedule_time
                 laps = new_slack // self._schedule_time
                 if new_usage < prev_available:
+                    print("Incrementing input laps 1")
+                    laps += 1
+                if prev_available == 0 and new_usage == 0:
+                    print("Incrementing input laps 2")
                     laps += 1
                 print(
                     [
+                        "Input",
+                        time,
+                        tmp_start,
                         signal_slack,
                         new_slack,
                         old_laps,
@@ -381,8 +391,23 @@ class Schedule:
                 laps = new_slack // self._schedule_time
                 if next_usage < new_available:
                     laps += 1
-                if new_available == 0 and new_slack > 0:
+                    print("Incrementing output laps 1")
+                if new_available == 0 and (new_slack > 0 or next_usage == 0):
+                    print("Incrementing output laps 2")
                     laps += 1
+                print(
+                    [
+                        "Output",
+                        signal_slack,
+                        new_slack,
+                        old_laps,
+                        laps,
+                        new_available,
+                        next_usage,
+                        tmp_available,
+                        tmp_next_usage,
+                    ]
+                )
                 self._laps[signal.graph_id] = laps
 
         # Set new start time

b_asic/scheduler_gui/main_window.py

@@ -482,6 +482,9 @@ class MainWindow(QMainWindow, Ui_MainWindow):
         self._graph._signals.component_selected.connect(
             self.info_table_update_component
         )
+        self._graph._signals.component_moved.connect(
+            self.info_table_update_component
+        )
         self._graph._signals.schedule_time_changed.connect(
             self.info_table_update_schedule
         )
@@ -590,6 +593,22 @@ class MainWindow(QMainWindow, Ui_MainWindow):
             self.info_table.setItem(si, 1, QTableWidgetItem(str(value)))
             si += 1
 
+        self.info_table.insertRow(si)
+        self.info_table.setItem(si, 0, QTableWidgetItem("Forward slack"))
+        self.info_table.setItem(
+            si, 1, QTableWidgetItem(str(self.schedule.forward_slack(graph_id)))
+        )
+        si += 1
+
+        self.info_table.insertRow(si)
+        self.info_table.setItem(si, 0, QTableWidgetItem("Backward slack"))
+        self.info_table.setItem(
+            si,
+            1,
+            QTableWidgetItem(str(self.schedule.backward_slack(graph_id))),
+        )
+        si += 1
+
     def info_table_clear(self) -> None:
         """Clears the info table."""
         self.info_table_clear_component()

b_asic/scheduler_gui/scheduler_event.py

@@ -42,6 +42,7 @@ class SchedulerEvent:  # PyQt5
 
         component_selected = Signal(str)
         schedule_time_changed = Signal()
+        component_moved = Signal(str)
 
     _axes: Optional[AxesItem]
     _current_pos: QPointF
@@ -152,8 +153,10 @@ class SchedulerEvent:  # PyQt5
                 f"from an '{type(item).__name__}' object."
             )
 
-        handler(event)
-        return True
+        if handler is not None:
+            handler(event)
+            return True
+        return False
 
     #################################
     # Event Handlers: OperationItem #
@@ -256,7 +259,7 @@ class SchedulerEvent:  # PyQt5
         """Change the cursor to OpenHandCursor when releasing an object."""
         item: OperationItem = self.scene().mouseGrabberItem()
         self.set_item_inactive(item)
-        self.set_new_starttime(item)
+        self.set_new_start_time(item)
         pos_x = item.x()
         redraw = False
         if pos_x < 0:
@@ -268,6 +271,7 @@ class SchedulerEvent:  # PyQt5
         if redraw:
             item.setX(pos_x)
             self._redraw_lines(item)
+        self._signals.component_moved.emit(item.graph_id)
 
     def operation_mouseDoubleClickEvent(
         self, event: QGraphicsSceneMouseEvent