def start_mouse_tracker(
ui, event_loop: asyncio.AbstractEventLoop,
canvas_item: CanvasItem.AbstractCanvasItem,
mouse_position_changed_by_fn: typing.Callable[[Geometry.IntPoint],
None],
global_pos: Geometry.IntPoint, size: Geometry.IntSize):
tracking_canvas_item = TrackingCanvasItem()
tracking_canvas_item.on_mouse_position_changed_by = mouse_position_changed_by_fn
tracking_canvas_item.add_canvas_item(canvas_item)
async def close_window(document_window):
document_window.request_close()
def handle_close(document_window):
tracking_canvas_item.release_mouse()
event_loop.create_task(close_window(document_window))
def activation_changed(document_window, activated):
if not activated:
handle_close(document_window)
# create the popup window
document_window = ui.create_document_window()
document_window.window_style = "mousegrab"
document_window.on_activation_changed = functools.partial(
activation_changed, document_window)
tracking_canvas_item.on_close = functools.partial(handle_close,
document_window)
# configure canvas widget, attach to document window
mousegrab_window_pos = global_pos - Geometry.IntPoint(x=size.width,
y=size.height / 2)
document_window.show(size=size, position=mousegrab_window_pos)
if sys.platform == "win32":
relative_pos = Geometry.IntPoint()
else:
relative_pos = mousegrab_window_pos
document_window.fill_screen()
canvas_widget = ui.create_canvas_widget()
tracking_canvas_item.sizing.set_fixed_size(size)
content_row_canvas_item = CanvasItem.CanvasItemComposition()
content_row_canvas_item.layout = CanvasItem.CanvasItemRowLayout()
content_row_canvas_item.add_spacing(relative_pos.x)
content_row_canvas_item.add_canvas_item(tracking_canvas_item)
content_row_canvas_item.add_stretch()
content_canvas_item = CanvasItem.CanvasItemComposition()
content_canvas_item.layout = CanvasItem.CanvasItemColumnLayout()
content_canvas_item.add_spacing(relative_pos.y)
content_canvas_item.add_canvas_item(content_row_canvas_item)
content_canvas_item.add_stretch()
canvas_widget.canvas_item.add_canvas_item(content_canvas_item)
document_window.attach(canvas_widget)
tracking_canvas_item.request_focus()
tracking_canvas_item.cursor_shape = "blank"
canvas_widget.set_cursor_shape("blank")
tracking_canvas_item.grab_mouse(relative_pos.x + size.width // 2,
relative_pos.y + size.height // 2)
def __init__(self, ui, list_item_delegate, *, items=None, selection_style=None, properties=None, selection=None, border_color=None, v_scroll_enabled: bool=True, v_auto_resize: bool=False):
super().__init__(ui.create_column_widget())
self.property_changed_event = Event.Event()
items = items or list()
self.__items: typing.List = list()
self.on_selection_changed = None
self.on_item_selected = None
self.on_cancel = None
self.on_item_handle_context_menu = None # used for declarative
self.__items_binding = None
self.__current_index_binding = None
self.__on_current_index_changed = None
self.__v_auto_resize = v_auto_resize
self.on_escape_pressed : typing.Optional[typing.Callable[[], bool]] = None
self.on_return_pressed : typing.Optional[typing.Callable[[], bool]] = None
self.__selection = selection if selection else Selection.IndexedSelection(selection_style)
def selection_changed():
on_selection_changed = self.on_selection_changed
if callable(on_selection_changed):
on_selection_changed(self.__selection.indexes)
if callable(self.__on_current_index_changed):
self.__on_current_index_changed(self.current_index)
def handle_delegate_cancel():
if callable(self.on_cancel):
self.on_cancel()
if callable(self.on_escape_pressed):
self.on_escape_pressed()
def handle_delegate_item_selected(index):
if callable(self.on_item_selected):
self.on_item_selected(index)
if callable(self.on_return_pressed):
self.on_return_pressed()
self.__selection_changed_event_listener = self.__selection.changed_event.listen(selection_changed)
self.__list_canvas_item_delegate = list_item_delegate
self.__list_canvas_item_delegate.on_cancel = handle_delegate_cancel
self.__list_canvas_item_delegate.on_item_selected = handle_delegate_item_selected
self.__list_canvas_item = ListCanvasItem.ListCanvasItem(self.__list_canvas_item_delegate, self.__selection, 20)
scroll_area_canvas_item = CanvasItem.ScrollAreaCanvasItem(self.__list_canvas_item)
scroll_area_canvas_item.auto_resize_contents = True
scroll_group_canvas_item = CanvasItem.CanvasItemComposition()
if border_color is not None:
scroll_group_canvas_item.border_color = border_color
scroll_group_canvas_item.layout = CanvasItem.CanvasItemRowLayout()
scroll_group_canvas_item.add_canvas_item(scroll_area_canvas_item)
if v_scroll_enabled:
scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(scroll_area_canvas_item)
scroll_group_canvas_item.add_canvas_item(scroll_bar_canvas_item)
canvas_widget = ui.create_canvas_widget(properties=properties)
canvas_widget.canvas_item.add_canvas_item(scroll_group_canvas_item)
self.content_widget.add(canvas_widget)
self.__canvas_widget = canvas_widget
self.items = items
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,
ui,
items,
selection_style=None,
stringify_item=None,
properties=None):
super().__init__(ui.create_column_widget())
self.__items = items
content_widget = self.content_widget
self.on_selection_changed = None
self.on_item_selected = None
stringify_item = str if stringify_item is None else stringify_item
class ListCanvasItemDelegate:
def __init__(self, string_list_widget, items, selection):
self.__string_list_widget = string_list_widget
self.__items = items
self.__selection = selection
@property
def items(self):
return self.__items
@items.setter
def items(self, value):
self.__items = value
@property
def item_count(self):
return len(self.__items)
def on_context_menu_event(self, index, x, y, gx, gy):
return False
def on_delete_pressed(self):
pass
def on_key_pressed(self, key):
return False
def on_drag_started(self, index, x, y, modifiers):
pass
def on_item_selected(self, index):
if callable(self.__string_list_widget.on_item_selected):
return self.__string_list_widget.on_item_selected(index)
return False
def paint_item(self, drawing_context, display_item, rect,
is_selected):
item = stringify_item(display_item)
with drawing_context.saver():
drawing_context.fill_style = "#000"
drawing_context.font = "12px"
drawing_context.text_align = 'left'
drawing_context.text_baseline = 'bottom'
drawing_context.fill_text(item, rect[0][1] + 4,
rect[0][0] + 20 - 4)
self.__selection = Selection.IndexedSelection(selection_style)
def selection_changed():
on_selection_changed = self.on_selection_changed
if callable(on_selection_changed):
on_selection_changed(self.__selection.indexes)
self.__selection_changed_event_listener = self.__selection.changed_event.listen(
selection_changed)
self.__list_canvas_item_delegate = ListCanvasItemDelegate(
self, items, self.__selection)
self.__list_canvas_item = ListCanvasItem.ListCanvasItem(
self.__list_canvas_item_delegate, self.__selection, 20)
scroll_area_canvas_item = CanvasItem.ScrollAreaCanvasItem(
self.__list_canvas_item)
scroll_area_canvas_item.auto_resize_contents = True
scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(
scroll_area_canvas_item)
scroll_group_canvas_item = CanvasItem.CanvasItemComposition()
scroll_group_canvas_item.border_color = "#888"
scroll_group_canvas_item.layout = CanvasItem.CanvasItemRowLayout()
scroll_group_canvas_item.add_canvas_item(scroll_area_canvas_item)
scroll_group_canvas_item.add_canvas_item(scroll_bar_canvas_item)
canvas_widget = ui.create_canvas_widget(properties=properties)
canvas_widget.canvas_item.add_canvas_item(scroll_group_canvas_item)
content_widget.add(canvas_widget)
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")
def __init__(self, document_controller: DocumentController.DocumentController, panel_id: str, properties: typing.Dict):
super().__init__(document_controller, panel_id, _("Data Items"))
ui = document_controller.ui
def show_context_menu(display_item: typing.Optional[DisplayItem.DisplayItem], x: int, y: int, gx: int, gy: int) -> bool:
menu = document_controller.create_context_menu_for_display(display_item, use_selection=True)
menu.popup(gx, gy)
return True
def map_display_item_to_display_item_adapter(display_item: DisplayItem.DisplayItem) -> DisplayItemAdapter:
return DisplayItemAdapter(display_item, ui)
def unmap_display_item_to_display_item_adapter(display_item_adapter: DisplayItemAdapter) -> None:
display_item_adapter.close()
self.__filtered_display_item_adapters_model = ListModel.MappedListModel(container=document_controller.filtered_display_items_model, master_items_key="display_items", items_key="display_item_adapters", map_fn=map_display_item_to_display_item_adapter, unmap_fn=unmap_display_item_to_display_item_adapter)
self.__selection = self.document_controller.selection
self.__focused = False
def selection_changed() -> None:
# called when the selection changes; notify selected display item changed if focused.
self.__notify_focus_changed()
self.__selection_changed_event_listener = self.__selection.changed_event.listen(selection_changed)
def display_item_adapter_selection_changed(display_item_adapters: typing.List[DisplayItemAdapter]) -> None:
indexes = set()
for index, display_item_adapter in enumerate(self.__filtered_display_item_adapters_model.display_item_adapters):
if display_item_adapter in display_item_adapters:
indexes.add(index)
self.__selection.set_multiple(indexes)
self.__notify_focus_changed()
def focus_changed(focused: bool) -> None:
self.focused = focused
def delete_display_item_adapters(display_item_adapters: typing.List[DisplayItemAdapter]) -> None:
document_controller.delete_display_items([display_item_adapter.display_item for display_item_adapter in display_item_adapters if display_item_adapter.display_item])
self.data_list_controller = DataListController(document_controller.event_loop, ui, self.__filtered_display_item_adapters_model, self.__selection)
self.data_list_controller.on_display_item_adapter_selection_changed = display_item_adapter_selection_changed
self.data_list_controller.on_context_menu_event = show_context_menu
self.data_list_controller.on_focus_changed = focus_changed
self.data_list_controller.on_delete_display_item_adapters = delete_display_item_adapters
self.data_grid_controller = DataGridController(document_controller.event_loop, ui, self.__filtered_display_item_adapters_model, self.__selection)
self.data_grid_controller.on_display_item_adapter_selection_changed = display_item_adapter_selection_changed
self.data_grid_controller.on_context_menu_event = show_context_menu
self.data_grid_controller.on_focus_changed = focus_changed
self.data_grid_controller.on_delete_display_item_adapters = delete_display_item_adapters
data_list_widget = DataListWidget(ui, self.data_list_controller)
data_grid_widget = DataGridWidget(ui, self.data_grid_controller)
list_icon_button = CanvasItem.BitmapButtonCanvasItem(CanvasItem.load_rgba_data_from_bytes(pkgutil.get_data(__name__, "resources/list_icon_20.png")))
grid_icon_button = CanvasItem.BitmapButtonCanvasItem(CanvasItem.load_rgba_data_from_bytes(pkgutil.get_data(__name__, "resources/grid_icon_20.png")))
list_icon_button.sizing.set_fixed_size(Geometry.IntSize(20, 20))
grid_icon_button.sizing.set_fixed_size(Geometry.IntSize(20, 20))
button_row = CanvasItem.CanvasItemComposition()
button_row.layout = CanvasItem.CanvasItemRowLayout(spacing=4)
button_row.add_canvas_item(list_icon_button)
button_row.add_canvas_item(grid_icon_button)
buttons_widget = ui.create_canvas_widget(properties={"height": 20, "width": 44})
buttons_widget.canvas_item.add_canvas_item(button_row)
search_widget = ui.create_row_widget()
search_widget.add_spacing(8)
search_widget.add(ui.create_label_widget(_("Filter")))
search_widget.add_spacing(8)
search_line_edit = ui.create_line_edit_widget()
search_line_edit.placeholder_text = _("No Filter")
search_line_edit.clear_button_enabled = True # Qt 5.3 doesn't signal text edited or editing finished when clearing. useless so disabled.
search_line_edit.on_text_edited = self.document_controller.filter_controller.text_filter_changed
search_line_edit.on_editing_finished = self.document_controller.filter_controller.text_filter_changed
search_widget.add(search_line_edit)
search_widget.add_spacing(6)
search_widget.add(buttons_widget)
search_widget.add_spacing(8)
self.data_view_widget = ui.create_stack_widget()
self.data_view_widget.add(data_list_widget)
self.data_view_widget.add(data_grid_widget)
self.data_view_widget.current_index = 0
self.__view_button_group = CanvasItem.RadioButtonGroup([list_icon_button, grid_icon_button])
self.__view_button_group.current_index = 0
self.__view_button_group.on_current_index_changed = lambda index: setattr(self.data_view_widget, "current_index", index)
widget = ui.create_column_widget(properties=properties)
widget.add(self.data_view_widget)
widget.add_spacing(6)
widget.add(search_widget)
widget.add_spacing(6)
self.widget = widget
self._data_list_widget = data_list_widget
self._data_grid_widget = data_grid_widget
def __init__(self, event_loop: asyncio.AbstractEventLoop, ui, display_item_adapters_model, selection, direction=GridCanvasItem.Direction.Row, wrap=True):
super().__init__()
self.__event_loop = event_loop
self.__pending_tasks : typing.List = list()
self.ui = ui
self.__selection = selection
self.on_delete_display_item_adapters : typing.Optional[typing.Callable[[typing.List[DisplayItemAdapter]], None]] = None
self.on_key_pressed : typing.Optional[typing.Callable[[UserInterface.Key], bool]] = None
self.on_display_item_adapter_double_clicked : typing.Optional[typing.Callable[[DisplayItemAdapter], bool]] = None
self.on_display_item_adapter_selection_changed : typing.Optional[typing.Callable[[typing.List[DisplayItemAdapter]], None]] = None
self.on_context_menu_event : typing.Optional[typing.Callable[[typing.Optional[DisplayItem.DisplayItem], int, int, int, int], bool]] = None
self.on_focus_changed : typing.Optional[typing.Callable[[bool], None]] = None
self.on_drag_started : typing.Optional[typing.Callable[[UserInterface.MimeData, numpy.ndarray], None]] = None
self.__display_item_adapters : typing.List[DisplayItemAdapter] = list()
self.__display_item_adapter_needs_update_listeners : typing.List = list()
self.__display_item_adapters_model = display_item_adapters_model
self.__display_item_adapter_inserted_event_listener = self.__display_item_adapters_model.item_inserted_event.listen(self.__display_item_adapter_inserted)
self.__display_item_adapter_removed_event_listener = self.__display_item_adapters_model.item_removed_event.listen(self.__display_item_adapter_removed)
self.__display_item_adapter_end_changes_event_listener = self.__display_item_adapters_model.end_changes_event.listen(self.__display_item_adapter_end_changes)
class GridCanvasItemDelegate:
def __init__(self, data_grid_controller: DataGridController):
self.__data_grid_controller = data_grid_controller
@property
def item_count(self) -> int:
return self.__data_grid_controller.display_item_adapter_count
@property
def items(self) -> typing.List[DisplayItemAdapter]:
return self.__data_grid_controller.display_item_adapters
def paint_item(self, drawing_context: DrawingContext.DrawingContext, display_item_adapter: DisplayItemAdapter, rect: Geometry.IntRect, is_selected: bool) -> None:
display_item_adapter.draw_grid_item(drawing_context, rect)
def on_context_menu_event(self, index: int, x: int, y: int, gx: int, gy: int) -> bool:
return self.__data_grid_controller.context_menu_event(index, x, y, gx, gy)
def on_delete_pressed(self) -> None:
self.__data_grid_controller._delete_pressed()
def on_key_pressed(self, key: UserInterface.Key) -> bool:
return self.__data_grid_controller._key_pressed(key)
def on_mouse_double_clicked(self, mouse_index: int, x: int, y: int, modifiers: UserInterface.KeyboardModifiers) -> bool:
return self.__data_grid_controller._double_clicked()
def on_drag_started(self, index: int, x: int, y: int, modifiers: UserInterface.KeyboardModifiers) -> None:
self.__data_grid_controller.drag_started(index, x, y, modifiers)
self.icon_view_canvas_item = GridCanvasItem.GridCanvasItem(GridCanvasItemDelegate(self), self.__selection, direction, wrap)
def icon_view_canvas_item_focus_changed(focused: bool) -> None:
self.icon_view_canvas_item.update()
if self.on_focus_changed:
self.on_focus_changed(focused)
self.icon_view_canvas_item.on_focus_changed = icon_view_canvas_item_focus_changed
self.scroll_area_canvas_item = CanvasItem.ScrollAreaCanvasItem(self.icon_view_canvas_item)
self.scroll_area_canvas_item.auto_resize_contents = True
self.scroll_group_canvas_item = CanvasItem.CanvasItemComposition()
if (wrap and direction == GridCanvasItem.Direction.Row) or (not wrap and direction == GridCanvasItem.Direction.Column):
self.scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item)
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemRowLayout()
else:
self.scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item, CanvasItem.Orientation.Horizontal)
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemColumnLayout()
self.scroll_group_canvas_item.add_canvas_item(self.scroll_area_canvas_item)
self.scroll_group_canvas_item.add_canvas_item(self.scroll_bar_canvas_item)
"""
# dual scroll bars, leave here for easy testing
self.vertical_scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item)
self.horizontal_scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item, CanvasItem.Orientation.Horizontal)
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemGridLayout(Geometry.IntSize(width=2, height=2))
self.scroll_group_canvas_item.add_canvas_item(self.scroll_area_canvas_item, Geometry.IntPoint(x=0, y=0))
self.scroll_group_canvas_item.add_canvas_item(self.vertical_scroll_bar_canvas_item, Geometry.IntPoint(x=1, y=0))
self.scroll_group_canvas_item.add_canvas_item(self.horizontal_scroll_bar_canvas_item, Geometry.IntPoint(x=0, y=1))
"""
self.canvas_item = self.scroll_group_canvas_item
def selection_changed() -> None:
self.selected_indexes = list(self.__selection.indexes)
if callable(self.on_display_item_adapter_selection_changed):
self.on_display_item_adapter_selection_changed([self.__display_item_adapters[index] for index in list(self.__selection.indexes)])
self.icon_view_canvas_item.make_selection_visible()
self.__selection_changed_listener = self.__selection.changed_event.listen(selection_changed)
self.selected_indexes = list()
# changed display items keep track of items whose content has changed
# the content changed messages may come from a thread so have to be
# moved to the main thread via this object.
self.__changed_display_item_adapters = False
self.__changed_display_item_adapters_mutex = threading.RLock()
self.__closed = False
for index, display_item_adapter in enumerate(self.__display_item_adapters_model.display_item_adapters):
self.__display_item_adapter_inserted("display_item_adapters", display_item_adapter, index)
def __init__(self, event_loop: asyncio.AbstractEventLoop, ui: UserInterface.UserInterface, display_item_adapters_model: ListModel.MappedListModel, selection: Selection.IndexedSelection):
super().__init__()
self.__event_loop = event_loop
self.__pending_tasks : typing.List = list()
self.ui = ui
self.__selection = selection
self.on_delete_display_item_adapters : typing.Optional[typing.Callable[[typing.List[DisplayItemAdapter]], None]] = None
self.on_key_pressed : typing.Optional[typing.Callable[[UserInterface.Key], bool]] = None
self.__display_item_adapters : typing.List[DisplayItemAdapter] = list()
self.__display_item_adapter_needs_update_listeners : typing.List = list()
self.__display_item_adapters_model = display_item_adapters_model
self.__display_item_adapter_inserted_event_listener = self.__display_item_adapters_model.item_inserted_event.listen(self.__display_item_adapter_inserted)
self.__display_item_adapter_removed_event_listener = self.__display_item_adapters_model.item_removed_event.listen(self.__display_item_adapter_removed)
self.__display_item_adapter_end_changes_event_listener = self.__display_item_adapters_model.end_changes_event.listen(self.__display_item_adapter_end_changes)
class ListCanvasItemDelegate:
def __init__(self, data_list_controller: DataListController):
self.__data_list_controller = data_list_controller
@property
def item_count(self) -> int:
return self.__data_list_controller.display_item_adapter_count
@property
def items(self) -> typing.List[DisplayItemAdapter]:
return self.__data_list_controller.display_item_adapters
def paint_item(self, drawing_context: DrawingContext.DrawingContext, display_item_adapter: DisplayItemAdapter, rect: Geometry.IntRect, is_selected: bool) -> None:
display_item_adapter.draw_list_item(drawing_context, rect)
def context_menu_event(self, index: int, x: int, y: int, gx: int, gy: int) -> bool:
return self.__data_list_controller.context_menu_event(index, x, y, gx, gy)
def delete_pressed(self) -> None:
self.__data_list_controller._delete_pressed()
def key_pressed(self, key: UserInterface.Key) -> bool:
return self.__data_list_controller._key_pressed(key)
def drag_started(self, index: int, x: int, y: int, modifiers: UserInterface.KeyboardModifiers) -> None:
self.__data_list_controller.drag_started(index, x, y, modifiers)
self.__list_canvas_item = ListCanvasItem.ListCanvasItem(ListCanvasItemDelegate(self), self.__selection)
def focus_changed(focused: bool) -> None:
self.__list_canvas_item.update()
if self.on_focus_changed:
self.on_focus_changed(focused)
self.__list_canvas_item.on_focus_changed = focus_changed
self.scroll_area_canvas_item = CanvasItem.ScrollAreaCanvasItem(self.__list_canvas_item)
self.scroll_area_canvas_item.auto_resize_contents = True
self.scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item)
self.scroll_group_canvas_item = CanvasItem.CanvasItemComposition()
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemRowLayout()
self.scroll_group_canvas_item.add_canvas_item(self.scroll_area_canvas_item)
self.scroll_group_canvas_item.add_canvas_item(self.scroll_bar_canvas_item)
self.canvas_item = self.scroll_group_canvas_item
def selection_changed() -> None:
self.selected_indexes = list(self.__selection.indexes)
if callable(self.on_display_item_adapter_selection_changed):
self.on_display_item_adapter_selection_changed([self.__display_item_adapters[index] for index in list(self.__selection.indexes)])
self.__list_canvas_item.make_selection_visible()
self.__selection_changed_listener = self.__selection.changed_event.listen(selection_changed)
self.selected_indexes = list()
self.on_display_item_adapter_selection_changed : typing.Optional[typing.Callable[[typing.List[DisplayItemAdapter]], None]] = None
self.on_context_menu_event : typing.Optional[typing.Callable[[typing.Optional[DisplayItem.DisplayItem], int, int, int, int], bool]] = None
self.on_focus_changed : typing.Optional[typing.Callable[[bool], None]] = None
self.on_drag_started : typing.Optional[typing.Callable[[UserInterface.MimeData, numpy.ndarray], None]] = None
# changed display items keep track of items whose content has changed
# the content changed messages may come from a thread so have to be
# moved to the main thread via this object.
self.__changed_display_item_adapters = False
self.__changed_display_item_adapters_mutex = threading.RLock()
for index, display_item_adapter in enumerate(self.__display_item_adapters_model.display_item_adapters):
self.__display_item_adapter_inserted("display_item_adapters", display_item_adapter, index)
def __init__(self,
ui: UserInterface.UserInterface,
list_item_delegate: ListCanvasItem.ListCanvasItemDelegate,
*,
items: typing.Optional[typing.Sequence[typing.Any]] = None,
selection_style: typing.Optional[Selection.Style] = None,
properties: typing.Optional[typing.Mapping[
str, typing.Any]] = None,
selection: typing.Optional[Selection.IndexedSelection] = None,
border_color: typing.Optional[str] = None,
v_scroll_enabled: bool = True,
v_auto_resize: bool = False) -> None:
column_widget = ui.create_column_widget()
super().__init__(column_widget)
self.property_changed_event = Event.Event()
items = items or list()
self.__items: typing.List[typing.Any] = list()
self.on_selection_changed: typing.Optional[typing.Callable[
[typing.AbstractSet[int]], None]] = None
self.on_item_selected: typing.Optional[typing.Callable[[int],
bool]] = None
self.on_cancel: typing.Optional[typing.Callable[[], None]] = None
self.on_item_handle_context_menu: typing.Optional[typing.Callable[
..., bool]] = None # used for declarative
self.__items_binding: typing.Optional[Binding.Binding] = None
self.__current_index_binding: typing.Optional[Binding.Binding] = None
self.__on_current_index_changed: typing.Optional[typing.Callable[
[int], None]] = None
self.__v_auto_resize = v_auto_resize
self.on_escape_pressed: typing.Optional[typing.Callable[[],
bool]] = None
self.on_return_pressed: typing.Optional[typing.Callable[[],
bool]] = None
self.__selection = selection if selection else Selection.IndexedSelection(
selection_style)
def selection_changed() -> None:
on_selection_changed = self.on_selection_changed
if callable(on_selection_changed):
on_selection_changed(self.__selection.indexes)
if callable(self.__on_current_index_changed):
self.__on_current_index_changed(self.current_index)
def handle_delegate_cancel() -> None:
if callable(self.on_cancel):
self.on_cancel()
if callable(self.on_escape_pressed):
self.on_escape_pressed()
def handle_delegate_item_selected(index: int) -> None:
if callable(self.on_item_selected):
self.on_item_selected(index)
if callable(self.on_return_pressed):
self.on_return_pressed()
self.__selection_changed_event_listener = self.__selection.changed_event.listen(
selection_changed)
self.__list_canvas_item_delegate = list_item_delegate
self.__list_canvas_item_delegate.on_cancel = handle_delegate_cancel
self.__list_canvas_item_delegate.on_item_selected = handle_delegate_item_selected
self.__list_canvas_item = ListCanvasItem.ListCanvasItem(
self.__list_canvas_item_delegate, self.__selection, 20)
scroll_area_canvas_item = CanvasItem.ScrollAreaCanvasItem(
self.__list_canvas_item)
scroll_area_canvas_item.auto_resize_contents = True
scroll_group_canvas_item = CanvasItem.CanvasItemComposition()
if border_color is not None:
scroll_group_canvas_item.border_color = border_color
scroll_group_canvas_item.layout = CanvasItem.CanvasItemRowLayout()
scroll_group_canvas_item.add_canvas_item(scroll_area_canvas_item)
if v_scroll_enabled:
scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(
scroll_area_canvas_item)
scroll_group_canvas_item.add_canvas_item(scroll_bar_canvas_item)
canvas_widget = ui.create_canvas_widget(properties=properties)
canvas_widget.canvas_item.add_canvas_item(scroll_group_canvas_item)
column_widget.add(canvas_widget)
self.__canvas_widget = canvas_widget
self.items = list(items)
def __init__(self, ui, app=None):
super().__init__(ui, app)
hello_world_str_ref = [
"Hello World!",
]
# place the hello world text into a row so that the text can be left justified within the row
# by adding a stretch on the right side of the row. then configure the height of the row to match
# the height of the hello world text.
# make a column in which to place the hello world text and a custom canvas item, add the items,
# then add stretch at the bottom so that the fixed height items get pushed to the top.
progress_bar_row = CanvasItem.CanvasItemComposition()
progress_bar_row.layout = CanvasItem.CanvasItemRowLayout(spacing=4)
progress_bar_canvas_item = CanvasItem.ProgressBarCanvasItem()
progress_bar_canvas_item.progress = 0
progress_bar_canvas_item.sizing.set_fixed_width(500)
progress_bar_row.add_canvas_item(progress_bar_canvas_item)
progress_bar_row.add_stretch()
progress_bar_row.sizing.set_fixed_height(
progress_bar_canvas_item.sizing.preferred_height)
check_box_row = CanvasItem.CanvasItemComposition()
check_box_row.layout = CanvasItem.CanvasItemRowLayout(spacing=4)
check_box_canvas_item = CanvasItem.CheckBoxCanvasItem()
check_box_canvas_item.sizing.set_fixed_width(20)
check_box_canvas_item.sizing.set_fixed_height(20)
check_box_row.add_canvas_item(check_box_canvas_item)
check_box_row.add_stretch()
check_box_row.sizing.set_fixed_height(20)
column_canvas_item = CanvasItem.CanvasItemComposition()
column_canvas_item.layout = CanvasItem.CanvasItemColumnLayout(
spacing=12, alignment="start")
brown_square_row = CanvasItem.CanvasItemComposition()
brown_square_row.layout = CanvasItem.CanvasItemRowLayout(spacing=4)
brown_square_canvas_item = BrownSquareCanvasItem()
brown_square_row.add_canvas_item(brown_square_canvas_item)
brown_square_row.add_stretch()
brown_square_row.sizing.set_fixed_height(
brown_square_canvas_item.sizing.preferred_height)
column_canvas_item.add_canvas_item(brown_square_row)
column_canvas_item.add_canvas_item(progress_bar_row)
column_canvas_item.add_canvas_item(check_box_row)
column_canvas_item.add_stretch()
# configure what happens when the button is pressed
click_count_ref = [0]
def button_clicked():
click_count_ref[0] += 1
hello_widget.text = hello_world_str_ref[0] + " (" + str(
click_count_ref[0]) + ")"
progress_bar_canvas_item.progress += 0.1
def checked_changed(value):
hello_world_str_ref[
0] = "Goodbye World..." if value else "Hello World!"
button_clicked()
# finally add the column to a root widget and attach the root widget to the document window.
root_widget = ui.create_column_widget(alignment="start")
one_row = ui.create_row_widget()
one_row.add_stretch()
one_row.add(ui.create_label_widget("Centered"))
one_row.add_stretch()
check_box_widget = ui.create_check_box_widget("Check BOX")
hello_widget = ui.create_push_button_widget(hello_world_str_ref[0])
canvas_widget = ui.create_canvas_widget(properties={
"height": 500,
"width": 600
})
canvas_widget.canvas_item.add_canvas_item(column_canvas_item)
root_widget.add(one_row)
root_widget.add(check_box_widget)
root_widget.add(hello_widget)
root_widget.add(canvas_widget)
self.attach_widget(root_widget)
hello_widget.on_clicked = button_clicked
check_box_widget.on_checked_changed = checked_changed
def __init__(
self,
event_loop: asyncio.AbstractEventLoop,
ui: UserInterface.UserInterface,
canvas_item: CanvasItem.AbstractCanvasItem,
display_item_adapters_model: ListModel.MappedListModel,
selection: Selection.IndexedSelection,
direction: GridCanvasItem.Direction = GridCanvasItem.Direction.Row,
wrap: bool = True) -> None:
self.__event_loop = event_loop
self.__pending_tasks: typing.List[asyncio.Task[None]] = list()
self.ui = ui
self.__selection = selection
self.__display_item_adapters: typing.List[DisplayItemAdapter] = list()
self.__display_item_adapter_needs_update_listeners: typing.List[
Event.EventListener] = list()
self.__display_item_adapters_model = display_item_adapters_model
self.__display_item_adapter_inserted_event_listener = self.__display_item_adapters_model.item_inserted_event.listen(
self.__display_item_adapter_inserted)
self.__display_item_adapter_removed_event_listener = self.__display_item_adapters_model.item_removed_event.listen(
self.__display_item_adapter_removed)
self.__display_item_adapter_end_changes_event_listener = self.__display_item_adapters_model.end_changes_event.listen(
self.__display_item_adapter_end_changes)
self.on_delete_display_item_adapters: typing.Optional[typing.Callable[
[typing.List[DisplayItemAdapter]], None]] = None
self.on_key_pressed: typing.Optional[typing.Callable[
[UserInterface.Key], bool]] = None
self.on_display_item_adapter_double_clicked: typing.Optional[
typing.Callable[[DisplayItemAdapter], bool]] = None
self.on_context_menu_event: typing.Optional[typing.Callable[[
typing.Optional[DisplayItem.DisplayItem], typing.
List[DisplayItem.DisplayItem], int, int, int, int
], bool]] = None
self.on_focus_changed: typing.Optional[typing.Callable[[bool],
None]] = None
self.on_drag_started: typing.Optional[typing.Callable[
[UserInterface.MimeData, typing.Optional[_NDArray]], None]] = None
# changed display items keep track of items whose content has changed
# the content changed messages may come from a thread so have to be
# moved to the main thread via this object.
self.__changed_display_item_adapters = False
self.__changed_display_item_adapters_mutex = threading.RLock()
self.__list_canvas_item = canvas_item
def focus_changed(focused: bool) -> None:
self.__list_canvas_item.update()
if self.on_focus_changed:
self.on_focus_changed(focused)
self.__list_canvas_item.on_focus_changed = focus_changed
self.scroll_area_canvas_item = CanvasItem.ScrollAreaCanvasItem(
self.__list_canvas_item)
self.scroll_area_canvas_item.auto_resize_contents = True
self.scroll_group_canvas_item = CanvasItem.CanvasItemComposition()
if (wrap and direction == GridCanvasItem.Direction.Row) or (
not wrap and direction == GridCanvasItem.Direction.Column):
self.scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(
self.scroll_area_canvas_item)
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemRowLayout(
)
else:
self.scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(
self.scroll_area_canvas_item,
CanvasItem.Orientation.Horizontal)
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemColumnLayout(
)
self.scroll_group_canvas_item.add_canvas_item(
self.scroll_area_canvas_item)
self.scroll_group_canvas_item.add_canvas_item(
self.scroll_bar_canvas_item)
"""
# dual scroll bars, leave here for easy testing
self.vertical_scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item)
self.horizontal_scroll_bar_canvas_item = CanvasItem.ScrollBarCanvasItem(self.scroll_area_canvas_item, CanvasItem.Orientation.Horizontal)
self.scroll_group_canvas_item.layout = CanvasItem.CanvasItemGridLayout(Geometry.IntSize(width=2, height=2))
self.scroll_group_canvas_item.add_canvas_item(self.scroll_area_canvas_item, Geometry.IntPoint(x=0, y=0))
self.scroll_group_canvas_item.add_canvas_item(self.vertical_scroll_bar_canvas_item, Geometry.IntPoint(x=1, y=0))
self.scroll_group_canvas_item.add_canvas_item(self.horizontal_scroll_bar_canvas_item, Geometry.IntPoint(x=0, y=1))
"""
self.__canvas_item = self.scroll_group_canvas_item
def selection_changed() -> None:
self.selected_indexes = list(self.__selection.indexes)
typing.cast(ItemExplorerCanvasItemLike,
self.__list_canvas_item).make_selection_visible()
self.__selection_changed_listener: typing.Optional[
Event.EventListener] = self.__selection.changed_event.listen(
selection_changed)
self.selected_indexes = list()
for index, display_item_adapter in enumerate(
self.__display_item_adapters_model.display_item_adapters):
self.__display_item_adapter_inserted("display_item_adapters",
display_item_adapter, index)
self.__closed = False