def __init__(self, cursor_changed_fn: typing.Callable[[float], None]):
super().__init__()
# tell the canvas item that we want mouse events.
self.wants_mouse_events = True
# create the component canvas items: adornments and the graph.
self.__adornments_canvas_item = AdornmentsCanvasItem()
self.__simple_line_graph_canvas_item = SimpleLineGraphCanvasItem()
self.__histogram_color_map_canvas_item = ColorMapCanvasItem()
# canvas items get added back to front
column = CanvasItem.CanvasItemComposition()
column.layout = CanvasItem.CanvasItemColumnLayout()
graph_and_adornments = CanvasItem.CanvasItemComposition()
graph_and_adornments.add_canvas_item(
self.__simple_line_graph_canvas_item)
graph_and_adornments.add_canvas_item(self.__adornments_canvas_item)
column.add_canvas_item(graph_and_adornments)
column.add_canvas_item(self.__histogram_color_map_canvas_item)
self.add_canvas_item(column)
# used for mouse tracking.
self.__pressed = False
self.on_set_display_limits = None
self.__cursor_changed = cursor_changed_fn
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,
document_controller: DocumentController.DocumentController,
panel_id: str,
properties: typing.Mapping[str, typing.Any]) -> None:
super().__init__(document_controller, panel_id, _("Metadata"))
ui = self.ui
self.__metadata_model = MetadataModel(document_controller)
delegate = MetadataEditorTreeDelegate(dict())
metadata_editor_widget = ui.create_canvas_widget()
metadata_editor_canvas_item = TreeCanvasItem.TreeCanvasItem(
ui.get_font_metrics, delegate)
metadata_editor_widget.canvas_item.layout = CanvasItem.CanvasItemColumnLayout(
)
metadata_editor_widget.canvas_item.add_canvas_item(
metadata_editor_canvas_item)
metadata_editor_widget.canvas_item.add_stretch()
self.__metadata_editor_canvas_item = metadata_editor_canvas_item
column = self.ui.create_column_widget()
column.add_spacing(6)
column.add(metadata_editor_widget)
column.add_spacing(6)
scroll_area = self.ui.create_scroll_area_widget()
scroll_area.set_scrollbar_policies("needed", "needed")
scroll_area.content = column
def content_height_changed(content_height: int) -> None:
desired_height = content_height + 12
metadata_editor_canvas_item.update_sizing(
metadata_editor_canvas_item.sizing.with_fixed_height(
desired_height))
metadata_editor_widget.canvas_item.update_layout(
Geometry.IntPoint(), scroll_area.size)
if metadata_editor_canvas_item._has_layout:
column.size = Geometry.IntSize(height=desired_height,
width=column.size.width)
metadata_editor_canvas_item.on_content_height_changed = content_height_changed
def metadata_changed(metadata: DataAndMetadata.MetadataType) -> None:
delegate.metadata = metadata
def reconstruct_metadata() -> None:
if self.__metadata_editor_canvas_item: # use this instead of local variable to handle close properly
self.__metadata_editor_canvas_item.reconstruct()
self.document_controller.queue_task(reconstruct_metadata)
self.__metadata_changed_event_listener = self.__metadata_model.metadata_changed_event.listen(
metadata_changed)
self.widget = scroll_area
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, 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
