Files
bec_widgets/bec_widgets/applications/main_app.py
T
2026-03-22 20:12:46 +01:00

415 lines
16 KiB
Python

from bec_qthemes import material_icon
from qtpy.QtGui import QAction # type: ignore
from qtpy.QtWidgets import QApplication, QHBoxLayout, QStackedWidget, QWidget
from bec_widgets.applications.navigation_centre.reveal_animator import ANIMATION_DURATION
from bec_widgets.applications.navigation_centre.side_bar import SideBar
from bec_widgets.applications.navigation_centre.side_bar_components import NavigationItem
from bec_widgets.applications.views.admin_view.admin_view import AdminView
from bec_widgets.applications.views.developer_view.developer_view import DeveloperView
from bec_widgets.applications.views.device_manager_view.device_manager_view import DeviceManagerView
from bec_widgets.applications.views.dock_area_view.dock_area_view import DockAreaView
from bec_widgets.applications.views.view import ViewBase, WaveformViewInline, WaveformViewPopup
from bec_widgets.utils.colors import apply_theme
from bec_widgets.utils.guided_tour import GuidedTour
from bec_widgets.utils.name_utils import sanitize_namespace
from bec_widgets.utils.screen_utils import (
apply_centered_size,
available_screen_geometry,
main_app_size_for_screen,
)
from bec_widgets.widgets.containers.main_window.main_window import BECMainWindow
class BECMainApp(BECMainWindow):
RPC = False
PLUGIN = False
def __init__(
self,
parent=None,
*args,
anim_duration: int = ANIMATION_DURATION,
show_examples: bool = False,
**kwargs,
):
super().__init__(parent=parent, *args, **kwargs)
self._show_examples = bool(show_examples)
# --- Compose central UI (sidebar + stack)
self.sidebar = SideBar(parent=self, anim_duration=anim_duration)
self.stack = QStackedWidget(self)
container = QWidget(self)
layout = QHBoxLayout(container)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
layout.addWidget(self.sidebar, 0)
layout.addWidget(self.stack, 1)
self.setCentralWidget(container)
# Mapping for view switching
self._view_index: dict[str, int] = {}
self._current_view_id: str | None = None
self.sidebar.view_selected.connect(self._on_view_selected)
self._add_views()
# Initialize guided tour
self.guided_tour = GuidedTour(self)
self._setup_guided_tour()
def _add_views(self):
self.add_section("BEC Applications", "bec_apps")
self.dock_area = DockAreaView(self)
self.device_manager = DeviceManagerView(self)
# self.developer_view = DeveloperView(self) #TODO temporary disable until the bugs with BECShell are resolved
self.admin_view = AdminView(self)
self.add_view(icon="widgets", title="Dock Area", widget=self.dock_area, mini_text="Docks")
self.add_view(
icon="display_settings",
title="Device Manager",
widget=self.device_manager,
mini_text="DM",
)
# TODO temporary disable until the bugs with BECShell are resolved
# self.add_view(
# icon="code_blocks",
# title="IDE",
# widget=self.developer_view,
# mini_text="IDE",
# exclusive=True,
# )
self.add_view(
icon="admin_panel_settings",
title="Admin View",
widget=self.admin_view,
mini_text="Admin",
from_top=False,
)
if self._show_examples:
self.add_section("Examples", "examples")
waveform_view_popup = WaveformViewPopup(
parent=self, view_id="waveform_view_popup", title="Waveform Plot"
)
waveform_view_stack = WaveformViewInline(
parent=self, view_id="waveform_view_stack", title="Waveform Plot"
)
self.add_view(
icon="show_chart",
title="Waveform With Popup",
widget=waveform_view_popup,
mini_text="Popup",
)
self.add_view(
icon="show_chart",
title="Waveform InLine Stack",
widget=waveform_view_stack,
mini_text="Stack",
)
self.set_current("dock_area")
self.sidebar.add_dark_mode_item()
# Add guided tour to Help menu
self._add_guided_tour_to_menu()
# --- Public API ------------------------------------------------------
def add_section(self, title: str, id: str, position: int | None = None):
return self.sidebar.add_section(title, id, position)
def add_separator(self):
return self.sidebar.add_separator()
def add_dark_mode_item(self, id: str = "dark_mode", position: int | None = None):
return self.sidebar.add_dark_mode_item(id=id, position=position)
def add_view(
self,
*,
icon: str,
title: str,
view_id: str | None = None,
widget: QWidget,
mini_text: str | None = None,
position: int | None = None,
from_top: bool = True,
toggleable: bool = True,
exclusive: bool = True,
) -> NavigationItem:
"""
Register a view in the stack and create a matching nav item in the sidebar.
Args:
icon(str): Icon name for the nav item.
title(str): Title for the nav item.
view_id(str, optional): Unique ID for the view/item. If omitted, uses mini_text;
if mini_text is also omitted, uses title.
widget(QWidget): The widget to add to the stack.
mini_text(str, optional): Short text for the nav item when sidebar is collapsed.
position(int, optional): Position to insert the nav item.
from_top(bool, optional): Whether to count position from the top or bottom.
toggleable(bool, optional): Whether the nav item is toggleable.
exclusive(bool, optional): Whether the nav item is exclusive.
Returns:
NavigationItem: The created navigation item.
"""
resolved_id = sanitize_namespace(view_id or mini_text or title)
item = self.sidebar.add_item(
icon=icon,
title=title,
id=resolved_id,
mini_text=mini_text,
position=position,
from_top=from_top,
toggleable=toggleable,
exclusive=exclusive,
)
# Wrap plain widgets into a ViewBase so enter/exit hooks are available
if isinstance(widget, ViewBase):
view_widget = widget
view_widget.view_id = resolved_id
view_widget.view_title = title
else:
view_widget = ViewBase(content=widget, parent=self, view_id=resolved_id, title=title)
view_widget.change_object_name(resolved_id)
idx = self.stack.addWidget(view_widget)
self._view_index[resolved_id] = idx
return item
def set_current(self, id: str) -> None:
if id in self._view_index:
self.sidebar.activate_item(id)
# Internal: route sidebar selection to the stack
def _on_view_selected(self, vid: str) -> None:
# Special handling for views that can not be switched to (e.g. dark mode toggle)
# Not registered as proper view with a stack index, so we ignore any logic below
# as it will anyways not result in a stack switch.
idx = self._view_index.get(vid)
if idx is None or not (0 <= idx < self.stack.count()):
return
# Determine current view
current_index = self.stack.currentIndex()
current_view = (
self.stack.widget(current_index) if 0 <= current_index < self.stack.count() else None
)
# Ask current view whether we may leave
if current_view is not None and hasattr(current_view, "on_exit"):
may_leave = current_view.on_exit()
if may_leave is False:
# Veto: restore previous highlight without re-emitting selection
if self._current_view_id is not None:
self.sidebar.activate_item(self._current_view_id, emit_signal=False)
return
# Proceed with switch
idx = self._view_index.get(vid)
if idx is None or not (0 <= idx < self.stack.count()):
return
self.stack.setCurrentIndex(idx)
new_view = self.stack.widget(idx)
self._current_view_id = vid
if hasattr(new_view, "on_enter"):
new_view.on_enter()
def _setup_guided_tour(self):
"""
Setup the guided tour for the main application.
Registers key UI components and delegates to views for their internal components.
"""
tour_steps = []
# --- General Layout Components ---
# Register the sidebar toggle button
toggle_step = self.guided_tour.register_widget(
widget=self.sidebar.toggle,
title="Sidebar Toggle",
text="Click this button to expand or collapse the sidebar. When expanded, you can see full navigation item titles and section names.",
)
tour_steps.append(toggle_step)
# Register the sidebar icons
sidebar_dock_area = self.sidebar.components.get("dock_area")
if sidebar_dock_area:
dock_step = self.guided_tour.register_widget(
widget=sidebar_dock_area,
title="Dock Area View",
text="Click here to access the Dock Area view, where you can manage and arrange your dockable panels.",
)
tour_steps.append(dock_step)
sidebar_device_manager = self.sidebar.components.get("device_manager")
if sidebar_device_manager:
device_manager_step = self.guided_tour.register_widget(
widget=sidebar_device_manager,
title="Device Manager View",
text="Click here to open the Device Manager view, where you can view and manage device configs.",
)
tour_steps.append(device_manager_step)
sidebar_developer_view = self.sidebar.components.get("developer_view")
if sidebar_developer_view:
developer_view_step = self.guided_tour.register_widget(
widget=sidebar_developer_view,
title="Developer View",
text="Click here to access the Developer view to write scripts and macros.",
)
tour_steps.append(developer_view_step)
# Register the dark mode toggle
dark_mode_item = self.sidebar.components.get("dark_mode")
if dark_mode_item:
dark_mode_step = self.guided_tour.register_widget(
widget=dark_mode_item,
title="Theme Toggle",
text="Switch between light and dark themes. The theme preference is saved and will be applied when you restart the application.",
)
tour_steps.append(dark_mode_step)
# Register the client info label
if hasattr(self, "_client_info_hover"):
client_info_step = self.guided_tour.register_widget(
widget=self._client_info_hover,
title="Client Status",
text="Displays status messages and information from the BEC Server.",
)
tour_steps.append(client_info_step)
# Register the scan progress bar if available
if hasattr(self, "_scan_progress_hover"):
progress_step = self.guided_tour.register_widget(
widget=self._scan_progress_hover,
title="Scan Progress",
text="Monitor the progress of ongoing scans. Hover over the progress bar to see detailed information including elapsed time and estimated completion.",
)
tour_steps.append(progress_step)
# Register the notification indicator in the status bar
if hasattr(self, "notification_indicator"):
notif_step = self.guided_tour.register_widget(
widget=self.notification_indicator,
title="Notification Center",
text="View system notifications, errors, and status updates. Click to filter notifications by type or expand to see all details.",
)
tour_steps.append(notif_step)
# --- View-Specific Components ---
# Register all views that can extend the tour
for view_id, view_index in self._view_index.items():
view_widget = self.stack.widget(view_index)
if not view_widget or not hasattr(view_widget, "register_tour_steps"):
continue
# Get the view's tour steps
view_tour = view_widget.register_tour_steps(self.guided_tour, self)
if view_tour is None:
if hasattr(view_widget.content, "register_tour_steps"):
view_tour = view_widget.content.register_tour_steps(self.guided_tour, self)
if view_tour is None:
continue
# Get the corresponding sidebar navigation item
nav_item = self.sidebar.components.get(view_id)
if not nav_item:
continue
# Use the view's title for the navigation button
nav_step = self.guided_tour.register_widget(
widget=nav_item,
title=view_tour.view_title,
text=f"Let's explore the features of the {view_tour.view_title}.",
)
tour_steps.append(nav_step)
tour_steps.extend(view_tour.step_ids)
# Create the tour with all registered steps
if tour_steps:
self.guided_tour.create_tour(tour_steps)
def start_guided_tour(self):
"""
Public method to start the guided tour.
This can be called programmatically or connected to a menu/button action.
"""
self.guided_tour.start_tour()
def _add_guided_tour_to_menu(self):
"""
Add a 'Guided Tour' action to the Help menu.
"""
# Find the Help menu
menu_bar = self.menuBar()
help_menu = None
for action in menu_bar.actions():
if action.text() == "Help":
help_menu = action.menu()
break
if help_menu:
# Add separator before the tour action
help_menu.addSeparator()
# Create and add the guided tour action
tour_action = QAction("Start Guided Tour", self)
tour_action.setIcon(material_icon("help"))
tour_action.triggered.connect(self.start_guided_tour)
tour_action.setShortcut("F1") # Add keyboard shortcut
help_menu.addAction(tour_action)
def cleanup(self):
for view_id, idx in self._view_index.items():
view = self.stack.widget(idx)
view.close()
view.deleteLater()
super().cleanup()
def main(): # pragma: no cover
"""
Main function to run the BEC main application, exposed as a script entry point through
pyproject.toml.
"""
# pylint: disable=import-outside-toplevel
import argparse
import sys
parser = argparse.ArgumentParser(description="BEC Main Application")
parser.add_argument(
"--examples", action="store_true", help="Show the Examples section with waveform demo views"
)
# Let Qt consume the remaining args
args, qt_args = parser.parse_known_args(sys.argv[1:])
app = QApplication([sys.argv[0], *qt_args])
app.setApplicationName("BEC")
apply_theme("dark")
w = BECMainApp(show_examples=args.examples)
screen_geometry = available_screen_geometry()
if screen_geometry is not None:
width, height = main_app_size_for_screen(screen_geometry)
apply_centered_size(w, width, height, available=screen_geometry)
else:
w.resize(w.minimumSizeHint())
w.show()
sys.exit(app.exec())
if __name__ == "__main__": # pragma: no cover
main()