Add UI for TOT offset adjustment.

Fixes https://github.com/dcs-liberation/dcs_liberation/issues/2912.

changelog.md

@@ -131,6 +131,15 @@ BAI/ANTISHIP/DEAD/STRIKE/BARCAP/CAS/OCA/AIR-ASSAULT (main) missions
 * **[Mission Generation]** Kneeboard STRIKE coordinates would sometimes get clipped when not fitting.
 * **[UI]** Fix exception when trying to add a waypoints to a flightplan.
 
+
+# 7.1.0
+
+## Features/Improvements
+
+* **[Mission Planning]** Per-flight TOT offsets can now be set in the flight details UI. This allows individual flights to be scheduled ahead of or behind the rest of the package.
+
+## Fixes
+
 # Liberation:
 # 7.0.0
 

qt_ui/windows/mission/flight/settings/FlightPlanPropertiesGroup.py

@@ -1,6 +1,16 @@
 import logging
+from datetime import timedelta
 
-from PySide2.QtWidgets import QGroupBox, QLabel, QMessageBox, QVBoxLayout
+from PySide2.QtCore import QTime
+from PySide2.QtWidgets import (
+    QGroupBox,
+    QLabel,
+    QMessageBox,
+    QVBoxLayout,
+    QTimeEdit,
+    QHBoxLayout,
+    QCheckBox,
+)
 
 from game import Game
 from game.ato.flight import Flight
@@ -10,9 +20,9 @@ from qt_ui.widgets.QLabeledWidget import QLabeledWidget
 from qt_ui.widgets.combos.QArrivalAirfieldSelector import QArrivalAirfieldSelector
 
 
-class FlightAirfieldDisplay(QGroupBox):
+class FlightPlanPropertiesGroup(QGroupBox):
     def __init__(self, game: Game, package_model: PackageModel, flight: Flight) -> None:
-        super().__init__("Departure/Arrival")
+        super().__init__("Flight plan properties")
         self.game = game
         self.package_model = package_model
         self.flight = flight
@@ -28,6 +38,31 @@ class FlightAirfieldDisplay(QGroupBox):
         self.package_model.tot_changed.connect(self.update_departure_time)
         self.update_departure_time()
 
+        tot_offset_layout = QHBoxLayout()
+        layout.addLayout(tot_offset_layout)
+
+        delay = int(self.flight.flight_plan.tot_offset.total_seconds())
+        negative = delay < 0
+        if negative:
+            delay = -delay
+        hours = delay // 3600
+        minutes = delay // 60 % 60
+        seconds = delay % 60
+
+        tot_offset_layout.addWidget(QLabel("TOT Offset (minutes:seconds)"))
+        tot_offset_layout.addStretch()
+        negative_offset_checkbox = QCheckBox("Ahead of package")
+        negative_offset_checkbox.setChecked(negative)
+        negative_offset_checkbox.toggled.connect(self.toggle_negative_offset)
+        tot_offset_layout.addWidget(negative_offset_checkbox)
+
+        self.tot_offset_spinner = QTimeEdit(QTime(hours, minutes, seconds))
+        self.tot_offset_spinner.setMaximumTime(QTime(59, 0))
+        self.tot_offset_spinner.setDisplayFormat("mm:ss")
+        self.tot_offset_spinner.timeChanged.connect(self.set_tot_offset)
+        self.tot_offset_spinner.setToolTip("Flight TOT offset from package TOT")
+        tot_offset_layout.addWidget(self.tot_offset_spinner)
+
         layout.addWidget(
             QLabel(
                 "Determined based on the package TOT. Edit the "
@@ -74,3 +109,13 @@ class FlightAirfieldDisplay(QGroupBox):
             QMessageBox.critical(
                 self, "Could not update flight plan", str(ex), QMessageBox.Ok
             )
+
+    def set_tot_offset(self, offset: QTime) -> None:
+        self.flight.flight_plan.tot_offset = timedelta(
+            hours=offset.hour(), minutes=offset.minute(), seconds=offset.second()
+        )
+        self.update_departure_time()
+
+    def toggle_negative_offset(self) -> None:
+        self.flight.flight_plan.tot_offset = -self.flight.flight_plan.tot_offset
+        self.update_departure_time()

qt_ui/windows/mission/flight/settings/QGeneralFlightSettingsTab.py

@@ -1,11 +1,10 @@
 from PySide2.QtCore import Signal
 from PySide2.QtWidgets import QFrame, QGridLayout, QVBoxLayout
 
-from game import Game
 from game.ato.flight import Flight
 from qt_ui.models import PackageModel, GameModel
-from qt_ui.windows.mission.flight.settings.FlightAirfieldDisplay import (
+from qt_ui.windows.mission.flight.settings.FlightPlanPropertiesGroup import (
-    FlightAirfieldDisplay,
+    FlightPlanPropertiesGroup,
 )
 from qt_ui.windows.mission.flight.settings.QCommsEditor import QCommsEditor
 from qt_ui.windows.mission.flight.settings.QCustomName import QFlightCustomName
@@ -25,7 +24,7 @@ class QGeneralFlightSettingsTab(QFrame):
         widgets = [
             QFlightTypeTaskInfo(flight),
             QCommsEditor(flight, game),
-            FlightAirfieldDisplay(game.game, package_model, flight),
+            FlightPlanPropertiesGroup(game.game, package_model, flight),
             QFlightSlotEditor(package_model, flight, game.game),
             QFlightStartType(package_model, flight),
             QFlightCustomName(flight),