def __init__(
self, ui_settings: UISettings.UISettings,
delegate: typing.Optional[DisplayCanvasItem.DisplayCanvasItemDelegate]
) -> None:
super().__init__()
self.__ui_settings = ui_settings
self.delegate = delegate
self.__drawing_context_lock = threading.RLock()
self.__drawing_context = DrawingContext.DrawingContext()
self.__display_xdata: typing.Optional[
DataAndMetadata.DataAndMetadata] = None
self.__display_script: typing.Optional[str] = None
self.__closing_lock = threading.RLock()
self.__closed = False
# canvas items get added back to front
# create the child canvas items
# the background
self.add_canvas_item(CanvasItem.BackgroundCanvasItem())
# frame rate
self.__display_frame_rate_id: typing.Optional[str] = None
self.__display_frame_rate_last_index = 0
def __init__(self,
ui_settings: UISettings.UISettings,
delegate,
event_loop,
draw_background: bool = True):
super().__init__()
self.__ui_settings = ui_settings
self.delegate = delegate
self.__drawing_context_lock = threading.RLock()
self.__drawing_context = DrawingContext.DrawingContext()
self.__display_data = None
self.__display_script = None
self.__closing_lock = threading.RLock()
self.__closed = False
self.__data = None
self.__last_data = None
# canvas items get added back to front
# create the child canvas items
# the background
self.add_canvas_item(CanvasItem.BackgroundCanvasItem())
# frame rate
self.__display_frame_rate_id = None
self.__display_frame_rate_last_index = 0
def __init__(self, ui, app=None):
super().__init__(ui, app)
# first create a root canvas item in which the rest of the user interface will go
canvas_widget = ui.create_canvas_widget()
background_canvas_item = CanvasItem.BackgroundCanvasItem("#FFF")
metadata = {
"Dictionary1": {
"abc": 5,
"def": "hello",
"List2": ["Red", "Green", "Blue"]
},
"List1": [4, 5, 6]
}
metadata_editor_canvas_item = TreeCanvasItem.TreeCanvasItem(
ui.get_font_metrics, MetadataEditorTreeDelegate(metadata))
metadata_editor_canvas_item.reconstruct()
# finally add the column to the root canvas item.
canvas_widget.canvas_item.add_canvas_item(background_canvas_item)
canvas_widget.canvas_item.add_canvas_item(metadata_editor_canvas_item)
# attach the root canvas item to the document window
self.attach_widget(canvas_widget)
def __init__(self, display_panel, hardware_source_id):
assert hardware_source_id is not None
hardware_source = HardwareSource.HardwareSourceManager().get_hardware_source_for_hardware_source_id(hardware_source_id)
self.type = VideoDisplayPanelController.type
self.__hardware_source_id = hardware_source_id
# configure the hardware source state controller
self.__state_controller = VideoSourceStateController(hardware_source, display_panel.document_controller.queue_task, display_panel.document_controller.document_model)
# configure the user interface
self.__play_button_enabled = False
self.__play_button_play_button_state = "play"
self.__data_item_states = list()
self.__display_panel = display_panel
self.__display_panel.header_canvas_item.end_header_color = "#DAA520"
self.__playback_controls_composition = CanvasItem.CanvasItemComposition()
self.__playback_controls_composition.layout = CanvasItem.CanvasItemLayout()
self.__playback_controls_composition.sizing.set_fixed_height(30)
playback_controls_row = CanvasItem.CanvasItemComposition()
playback_controls_row.layout = CanvasItem.CanvasItemRowLayout()
play_button_canvas_item = CanvasItem.TextButtonCanvasItem()
play_button_canvas_item.border_enabled = False
abort_button_canvas_item = CanvasItem.TextButtonCanvasItem()
abort_button_canvas_item.border_enabled = False
status_text_canvas_item = CanvasItem.StaticTextCanvasItem(str())
hardware_source_display_name_canvas_item = CanvasItem.StaticTextCanvasItem(str())
playback_controls_row.add_canvas_item(play_button_canvas_item)
playback_controls_row.add_canvas_item(abort_button_canvas_item)
playback_controls_row.add_canvas_item(status_text_canvas_item)
playback_controls_row.add_stretch()
playback_controls_row.add_canvas_item(hardware_source_display_name_canvas_item)
self.__playback_controls_composition.add_canvas_item(CanvasItem.BackgroundCanvasItem("#DAA520"))
self.__playback_controls_composition.add_canvas_item(playback_controls_row)
self.__display_panel.footer_canvas_item.insert_canvas_item(0, self.__playback_controls_composition)
def display_name_changed(display_name):
hardware_source_display_name_canvas_item.text = display_name
hardware_source_display_name_canvas_item.size_to_content(display_panel.image_panel_get_font_metrics)
def play_button_state_changed(enabled, play_button_state):
play_button_canvas_item.enabled = enabled
map_play_button_state_to_text = {"play": _("Play"), "pause": _("Pause")}
play_button_canvas_item.text = map_play_button_state_to_text[play_button_state]
play_button_canvas_item.size_to_content(display_panel.image_panel_get_font_metrics)
def abort_button_state_changed(visible, enabled):
abort_button_canvas_item.text = _("Abort") if visible else str()
abort_button_canvas_item.enabled = enabled
abort_button_canvas_item.size_to_content(display_panel.image_panel_get_font_metrics)
def update_status_text():
map_channel_state_to_text = {"stopped": _("Stopped"), "complete": _("Acquiring"),
"partial": _("Acquiring"), "marked": _("Stopping")}
for data_item_state in self.__data_item_states:
channel_state = data_item_state["channel_state"]
new_text = map_channel_state_to_text[channel_state]
if status_text_canvas_item.text != new_text:
status_text_canvas_item.text = new_text
status_text_canvas_item.size_to_content(display_panel.image_panel_get_font_metrics)
return
def data_item_states_changed(data_item_states):
self.__data_item_states = data_item_states
update_status_text()
def display_data_item_changed(data_item):
display_panel.set_displayed_data_item(data_item)
def display_new_data_item(data_item):
result_display_panel = display_panel.document_controller.next_result_display_panel()
if result_display_panel:
result_display_panel.set_display_panel_data_item(data_item)
result_display_panel.request_focus()
self.__state_controller.on_display_name_changed = display_name_changed
self.__state_controller.on_play_button_state_changed = play_button_state_changed
self.__state_controller.on_abort_button_state_changed = abort_button_state_changed
self.__state_controller.on_data_item_states_changed = data_item_states_changed
self.__state_controller.on_display_data_item_changed = display_data_item_changed
self.__state_controller.on_display_new_data_item = display_new_data_item
play_button_canvas_item.on_button_clicked = self.__state_controller.handle_play_clicked
abort_button_canvas_item.on_button_clicked = self.__state_controller.handle_abort_clicked
self.__state_controller.initialize_state()
document_model = self.__display_panel.document_controller.document_model
def __init__(self, display_panel: DisplayPanel.DisplayPanel,
hardware_source_id: str) -> None:
assert hardware_source_id is not None
hardware_source = HardwareSource.HardwareSourceManager(
).get_hardware_source_for_hardware_source_id(hardware_source_id)
assert isinstance(hardware_source, video_base.VideoHardwareSource)
self.type = VideoDisplayPanelController.type
self.__hardware_source_id = hardware_source_id
# configure the hardware source state controller
self.__state_controller = VideoSourceStateController(
hardware_source, display_panel.document_controller.queue_task,
display_panel.document_controller.document_model)
# configure the user interface
self.__play_button_enabled = False
self.__play_button_play_button_state = "play"
self.__display_panel = display_panel
self.__display_panel.header_canvas_item.end_header_color = "#DAA520"
self.__playback_controls_composition = CanvasItem.CanvasItemComposition(
)
self.__playback_controls_composition.layout = CanvasItem.CanvasItemLayout(
)
self.__playback_controls_composition.update_sizing(
self.__playback_controls_composition.sizing.with_fixed_height(30))
playback_controls_row = CanvasItem.CanvasItemComposition()
playback_controls_row.layout = CanvasItem.CanvasItemRowLayout()
play_button_canvas_item = CanvasItem.TextButtonCanvasItem()
play_button_canvas_item.border_enabled = False
abort_button_canvas_item = CanvasItem.TextButtonCanvasItem()
abort_button_canvas_item.border_enabled = False
status_text_canvas_item = CanvasItem.StaticTextCanvasItem(str())
hardware_source_display_name_canvas_item = CanvasItem.StaticTextCanvasItem(
str())
playback_controls_row.add_canvas_item(play_button_canvas_item)
playback_controls_row.add_canvas_item(abort_button_canvas_item)
playback_controls_row.add_canvas_item(status_text_canvas_item)
playback_controls_row.add_stretch()
playback_controls_row.add_canvas_item(
hardware_source_display_name_canvas_item)
self.__playback_controls_composition.add_canvas_item(
CanvasItem.BackgroundCanvasItem("#DAA520"))
self.__playback_controls_composition.add_canvas_item(
playback_controls_row)
self.__display_panel.footer_canvas_item.insert_canvas_item(
0, self.__playback_controls_composition)
def display_name_changed(display_name: str) -> None:
hardware_source_display_name_canvas_item.text = display_name
hardware_source_display_name_canvas_item.size_to_content(
display_panel.image_panel_get_font_metrics)
def play_button_state_changed(enabled: bool,
play_button_state: str) -> None:
play_button_canvas_item.enabled = enabled
map_play_button_state_to_text = {
"play": _("Play"),
"pause": _("Pause")
}
play_button_canvas_item.text = map_play_button_state_to_text[
play_button_state]
play_button_canvas_item.size_to_content(
display_panel.image_panel_get_font_metrics)
def abort_button_state_changed(visible: bool, enabled: bool) -> None:
abort_button_canvas_item.text = _("Abort") if visible else str()
abort_button_canvas_item.enabled = enabled
abort_button_canvas_item.size_to_content(
display_panel.image_panel_get_font_metrics)
def acquisition_state_changed(key: str) -> None:
# this may be called on a thread. create an async method (guaranteed to run on the main thread)
# and add it to the window event loop.
async def update_acquisition_state_label(
acquisition_state: typing.Optional[str]) -> None:
acquisition_state = acquisition_state or "stopped"
status_text_canvas_item.text = map_channel_state_to_text[
acquisition_state]
status_text_canvas_item.size_to_content(
display_panel.image_panel_get_font_metrics)
self.__display_panel.document_controller.event_loop.create_task(
update_acquisition_state_label(
self.__state_controller.acquisition_state_model.value))
def display_new_data_item(data_item: DataItem.DataItem) -> None:
result_display_panel = display_panel.document_controller.next_result_display_panel(
)
if result_display_panel:
result_display_panel.set_display_panel_data_item(data_item)
result_display_panel.request_focus()
self.__state_controller.on_display_name_changed = display_name_changed
self.__state_controller.on_play_button_state_changed = play_button_state_changed
self.__state_controller.on_abort_button_state_changed = abort_button_state_changed
self.__state_controller.on_display_new_data_item = display_new_data_item
display_panel.set_data_item_reference(
self.__state_controller.data_item_reference)
play_button_canvas_item.on_button_clicked = self.__state_controller.handle_play_clicked
abort_button_canvas_item.on_button_clicked = self.__state_controller.handle_abort_clicked
self.__acquisition_state_changed_listener = self.__state_controller.acquisition_state_model.property_changed_event.listen(
acquisition_state_changed)
self.__state_controller.initialize_state()
acquisition_state_changed("value")