"""Widgets for displaying air tasking orders.""" import logging from contextlib import contextmanager from typing import ContextManager, Optional from PySide2.QtCore import ( QItemSelectionModel, QModelIndex, QSize, Qt, ) from PySide2.QtGui import ( QContextMenuEvent, QFont, QFontMetrics, QIcon, QPainter, ) from PySide2.QtWidgets import ( QAbstractItemView, QAction, QGroupBox, QHBoxLayout, QLabel, QListView, QMenu, QPushButton, QSplitter, QStyle, QStyleOptionViewItem, QStyledItemDelegate, QVBoxLayout, ) from game import db from gen.ato import Package from gen.flights.flight import Flight from gen.flights.traveltime import TotEstimator from qt_ui.windows.GameUpdateSignal import GameUpdateSignal from ..models import AtoModel, GameModel, NullListModel, PackageModel class FlightDelegate(QStyledItemDelegate): FONT_SIZE = 10 HMARGIN = 4 VMARGIN = 4 def __init__(self, package: Package) -> None: super().__init__() self.package = package def get_font(self, option: QStyleOptionViewItem) -> QFont: font = QFont(option.font) font.setPointSize(self.FONT_SIZE) return font @staticmethod def flight(index: QModelIndex) -> Flight: return index.data(PackageModel.FlightRole) def first_row_text(self, index: QModelIndex) -> str: flight = self.flight(index) task = flight.flight_type count = flight.count name = db.unit_type_name(flight.unit_type) estimator = TotEstimator(self.package) delay = estimator.mission_start_time(flight) return f"[{task}] {count} x {name} in {delay}" def second_row_text(self, index: QModelIndex) -> str: flight = self.flight(index) origin = flight.from_cp.name return f"From {origin}" def paint(self, painter: QPainter, option: QStyleOptionViewItem, index: QModelIndex) -> None: # Draw the list item with all the default selection styling, but with an # invalid index so text formatting is left to us. super().paint(painter, option, QModelIndex()) rect = option.rect.adjusted(self.HMARGIN, self.VMARGIN, -self.HMARGIN, -self.VMARGIN) with painter_context(painter): painter.setFont(self.get_font(option)) icon: Optional[QIcon] = index.data(Qt.DecorationRole) if icon is not None: icon.paint(painter, rect, Qt.AlignLeft | Qt.AlignVCenter, self.icon_mode(option), self.icon_state(option)) rect = rect.adjusted(self.icon_size(option).width() + self.HMARGIN, 0, 0, 0) painter.drawText(rect, Qt.AlignLeft, self.first_row_text(index)) line2 = rect.adjusted(0, rect.height() / 2, 0, rect.height() / 2) painter.drawText(line2, Qt.AlignLeft, self.second_row_text(index)) clients = self.num_clients(index) if clients: painter.drawText(rect, Qt.AlignRight, f"Player Slots: {clients}") def num_clients(self, index: QModelIndex) -> int: flight = self.flight(index) return flight.client_count @staticmethod def icon_mode(option: QStyleOptionViewItem) -> QIcon.Mode: if not (option.state & QStyle.State_Enabled): return QIcon.Disabled elif option.state & QStyle.State_Selected: return QIcon.Selected elif option.state & QStyle.State_Active: return QIcon.Active return QIcon.Normal @staticmethod def icon_state(option: QStyleOptionViewItem) -> QIcon.State: return QIcon.On if option.state & QStyle.State_Open else QIcon.Off @staticmethod def icon_size(option: QStyleOptionViewItem) -> QSize: icon_size: Optional[QSize] = option.decorationSize if icon_size is None: return QSize(0, 0) else: return icon_size def sizeHint(self, option: QStyleOptionViewItem, index: QModelIndex) -> QSize: left = self.icon_size(option).width() + self.HMARGIN metrics = QFontMetrics(self.get_font(option)) first = metrics.size(0, self.first_row_text(index)) second = metrics.size(0, self.second_row_text(index)) text_width = max(first.width(), second.width()) return QSize(left + text_width + 2 * self.HMARGIN, first.height() + second.height() + 2 * self.VMARGIN) class QFlightList(QListView): """List view for displaying the flights of a package.""" def __init__(self, game_model: GameModel, package_model: Optional[PackageModel]) -> None: super().__init__() self.game_model = game_model self.package_model = package_model self.set_package(package_model) if package_model is not None: self.setItemDelegate(FlightDelegate(package_model.package)) self.setIconSize(QSize(91, 24)) self.setSelectionBehavior(QAbstractItemView.SelectItems) self.doubleClicked.connect(self.on_double_click) def set_package(self, model: Optional[PackageModel]) -> None: """Sets the package model to display.""" if model is None: self.disconnect_model() else: self.package_model = model self.setItemDelegate(FlightDelegate(model.package)) self.setModel(model) # noinspection PyUnresolvedReferences model.deleted.connect(self.disconnect_model) self.selectionModel().setCurrentIndex( model.index(0, 0, QModelIndex()), QItemSelectionModel.Select ) def disconnect_model(self) -> None: """Clears the listview of any model attachments. Displays an empty list until set_package is called with a valid model. """ model = self.model() if model is not None and isinstance(model, PackageModel): model.deleted.disconnect(self.disconnect_model) self.setModel(NullListModel()) @property def selected_item(self) -> Optional[Flight]: """Returns the selected flight, if any.""" index = self.currentIndex() if not index.isValid(): return None return self.package_model.flight_at_index(index) def on_double_click(self, index: QModelIndex) -> None: if not index.isValid(): return self.edit_flight(index) def edit_flight(self, index: QModelIndex) -> None: from qt_ui.dialogs import Dialog Dialog.open_edit_flight_dialog( self.package_model, self.package_model.flight_at_index(index), parent=self.window() ) def delete_flight(self, index: QModelIndex) -> None: self.game_model.game.aircraft_inventory.return_from_flight( self.selected_item) self.package_model.delete_flight_at_index(index) GameUpdateSignal.get_instance().redraw_flight_paths() def contextMenuEvent(self, event: QContextMenuEvent) -> None: index = self.indexAt(event.pos()) menu = QMenu("Menu") edit_action = QAction("Edit") edit_action.triggered.connect(lambda: self.edit_flight(index)) menu.addAction(edit_action) delete_action = QAction(f"Delete") delete_action.triggered.connect(lambda: self.delete_flight(index)) menu.addAction(delete_action) menu.exec_(event.globalPos()) class QFlightPanel(QGroupBox): """The flight display portion of the ATO panel. Displays the flights assigned to the selected package, and includes edit and delete buttons for flight management. """ def __init__(self, game_model: GameModel, package_model: Optional[PackageModel] = None) -> None: super().__init__("Flights") self.game_model = game_model self.package_model = package_model self.vbox = QVBoxLayout() self.setLayout(self.vbox) self.tip = QLabel( "To add flights to a package, edit the package by double clicking " "it or pressing the edit button." ) self.vbox.addWidget(self.tip) self.flight_list = QFlightList(game_model, package_model) self.vbox.addWidget(self.flight_list) self.button_row = QHBoxLayout() self.vbox.addLayout(self.button_row) self.edit_button = QPushButton("Edit") self.edit_button.clicked.connect(self.on_edit) self.button_row.addWidget(self.edit_button) self.delete_button = QPushButton("Delete") # noinspection PyTypeChecker self.delete_button.setProperty("style", "btn-danger") self.delete_button.clicked.connect(self.on_delete) self.button_row.addWidget(self.delete_button) self.selection_changed.connect(self.on_selection_changed) self.on_selection_changed() def set_package(self, model: Optional[PackageModel]) -> None: """Sets the package model to display.""" self.package_model = model self.flight_list.set_package(model) self.selection_changed.connect(self.on_selection_changed) self.on_selection_changed() @property def selection_changed(self): """Returns the signal emitted when the flight selection changes.""" return self.flight_list.selectionModel().selectionChanged def on_selection_changed(self) -> None: """Updates the status of the edit and delete buttons.""" index = self.flight_list.currentIndex() enabled = index.isValid() self.edit_button.setEnabled(enabled) self.delete_button.setEnabled(enabled) self.change_map_flight_selection(index) @staticmethod def change_map_flight_selection(index: QModelIndex) -> None: if not index.isValid(): GameUpdateSignal.get_instance().select_flight(None) return GameUpdateSignal.get_instance().select_flight(index.row()) def on_edit(self) -> None: """Opens the flight edit dialog.""" index = self.flight_list.currentIndex() if not index.isValid(): logging.error(f"Cannot edit flight when no flight is selected.") return self.flight_list.edit_flight(index) def on_delete(self) -> None: """Removes the selected flight from the package.""" index = self.flight_list.currentIndex() if not index.isValid(): logging.error(f"Cannot delete flight when no flight is selected.") return self.flight_list.delete_flight(index) @contextmanager def painter_context(painter: QPainter) -> ContextManager[None]: try: painter.save() yield finally: painter.restore() class PackageDelegate(QStyledItemDelegate): FONT_SIZE = 12 HMARGIN = 4 VMARGIN = 4 def get_font(self, option: QStyleOptionViewItem) -> QFont: font = QFont(option.font) font.setPointSize(self.FONT_SIZE) return font @staticmethod def package(index: QModelIndex) -> Package: return index.data(AtoModel.PackageRole) def left_text(self, index: QModelIndex) -> str: package = self.package(index) return f"{package.package_description} {package.target.name}" def right_text(self, index: QModelIndex) -> str: package = self.package(index) return f"TOT T+{package.time_over_target}" def paint(self, painter: QPainter, option: QStyleOptionViewItem, index: QModelIndex) -> None: # Draw the list item with all the default selection styling, but with an # invalid index so text formatting is left to us. super().paint(painter, option, QModelIndex()) rect = option.rect.adjusted(self.HMARGIN, self.VMARGIN, -self.HMARGIN, -self.VMARGIN) with painter_context(painter): painter.setFont(self.get_font(option)) painter.drawText(rect, Qt.AlignLeft, self.left_text(index)) line2 = rect.adjusted(0, rect.height() / 2, 0, rect.height() / 2) painter.drawText(line2, Qt.AlignLeft, self.right_text(index)) clients = self.num_clients(index) if clients: painter.drawText(rect, Qt.AlignRight, f"Player Slots: {clients}") def num_clients(self, index: QModelIndex) -> int: package = self.package(index) return sum(f.client_count for f in package.flights) def sizeHint(self, option: QStyleOptionViewItem, index: QModelIndex) -> QSize: metrics = QFontMetrics(self.get_font(option)) left = metrics.size(0, self.left_text(index)) right = metrics.size(0, self.right_text(index)) return QSize(max(left.width(), right.width()) + 2 * self.HMARGIN, left.height() + right.height() + 2 * self.VMARGIN) class QPackageList(QListView): """List view for displaying the packages of an ATO.""" def __init__(self, model: AtoModel) -> None: super().__init__() self.ato_model = model self.setModel(model) self.setItemDelegate(PackageDelegate()) self.setIconSize(QSize(91, 24)) self.setSelectionBehavior(QAbstractItemView.SelectItems) self.model().rowsInserted.connect(self.on_new_packages) self.doubleClicked.connect(self.on_double_click) @property def selected_item(self) -> Optional[Package]: """Returns the selected package, if any.""" index = self.currentIndex() if not index.isValid(): return None return self.ato_model.package_at_index(index) def edit_package(self, index: QModelIndex) -> None: from qt_ui.dialogs import Dialog Dialog.open_edit_package_dialog(self.ato_model.get_package_model(index)) def delete_package(self, index: QModelIndex) -> None: self.ato_model.delete_package_at_index(index) GameUpdateSignal.get_instance().redraw_flight_paths() def on_new_packages(self, _parent: QModelIndex, first: int, _last: int) -> None: # Select the newly created pacakges. This should only ever happen due to # the player saving a new package, so selecting it helps them view/edit # it faster. self.selectionModel().setCurrentIndex(self.model().index(first, 0), QItemSelectionModel.Select) def on_double_click(self, index: QModelIndex) -> None: if not index.isValid(): return self.edit_package(index) def contextMenuEvent(self, event: QContextMenuEvent) -> None: index = self.indexAt(event.pos()) menu = QMenu("Menu") edit_action = QAction("Edit") edit_action.triggered.connect(lambda: self.edit_package(index)) menu.addAction(edit_action) delete_action = QAction(f"Delete") delete_action.triggered.connect(lambda: self.delete_package(index)) menu.addAction(delete_action) menu.exec_(event.globalPos()) class QPackagePanel(QGroupBox): """The package display portion of the ATO panel. Displays the package assigned to the player's ATO, and includes edit and delete buttons for package management. """ def __init__(self, model: AtoModel) -> None: super().__init__("Packages") self.ato_model = model self.ato_model.layoutChanged.connect(self.on_current_changed) self.vbox = QVBoxLayout() self.setLayout(self.vbox) self.tip = QLabel( "To create a new package, right click the mission target on the " "map. To target airbase objectives, use\n" "the attack button in the airbase view." ) self.vbox.addWidget(self.tip) self.package_list = QPackageList(self.ato_model) self.vbox.addWidget(self.package_list) self.button_row = QHBoxLayout() self.vbox.addLayout(self.button_row) self.edit_button = QPushButton("Edit") self.edit_button.clicked.connect(self.on_edit) self.button_row.addWidget(self.edit_button) self.delete_button = QPushButton("Delete") # noinspection PyTypeChecker self.delete_button.setProperty("style", "btn-danger") self.delete_button.clicked.connect(self.on_delete) self.button_row.addWidget(self.delete_button) self.current_changed.connect(self.on_current_changed) self.on_current_changed() @property def current_changed(self): """Returns the signal emitted when the flight selection changes.""" return self.package_list.selectionModel().currentChanged def on_current_changed(self) -> None: """Updates the status of the edit and delete buttons.""" index = self.package_list.currentIndex() enabled = index.isValid() self.edit_button.setEnabled(enabled) self.delete_button.setEnabled(enabled) self.change_map_package_selection(index) def change_map_package_selection(self, index: QModelIndex) -> None: if not index.isValid(): GameUpdateSignal.get_instance().select_package(None) return package = self.ato_model.get_package_model(index) if package.rowCount() == 0: GameUpdateSignal.get_instance().select_package(None) else: GameUpdateSignal.get_instance().select_package(index.row()) def on_edit(self) -> None: """Opens the package edit dialog.""" index = self.package_list.currentIndex() if not index.isValid(): logging.error(f"Cannot edit package when no package is selected.") return self.package_list.edit_package(index) def on_delete(self) -> None: """Removes the package from the ATO.""" index = self.package_list.currentIndex() if not index.isValid(): logging.error(f"Cannot delete package when no package is selected.") return self.package_list.delete_package(index) class QAirTaskingOrderPanel(QSplitter): """A split panel for displaying the packages and flights of an ATO. Used as the left-bar of the main UI. The top half of the panel displays the packages of the player's ATO, and the bottom half displays the flights of the selected package. """ def __init__(self, game_model: GameModel) -> None: super().__init__(Qt.Vertical) self.ato_model = game_model.ato_model self.package_panel = QPackagePanel(self.ato_model) self.package_panel.current_changed.connect(self.on_package_change) self.addWidget(self.package_panel) self.flight_panel = QFlightPanel(game_model) self.addWidget(self.flight_panel) def on_package_change(self) -> None: """Sets the newly selected flight for display in the bottom panel.""" index = self.package_panel.package_list.currentIndex() if index.isValid(): self.flight_panel.set_package( self.ato_model.get_package_model(index) ) else: self.flight_panel.set_package(None)