85 lines
2.1 KiB
Python
85 lines
2.1 KiB
Python
from abc import ABC
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from typing import TYPE_CHECKING, Type
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import pyglet
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from source.gui.event import EventPropagationMixin
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from source.gui.widget import Input
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if TYPE_CHECKING:
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from source.gui.window import Window
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from source.gui.widget.abc import Widget
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class Scene(ABC, EventPropagationMixin):
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"""
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A scene that can be attached to a window.
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It allows to switch the whole comportment of the window in a simpler way.
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It can react to any "on_" event from the window.
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"""
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def __init__(self, window: "Window", **kwargs):
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self.window = window
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self.batch = pyglet.graphics.Batch()
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self._widgets: list["Widget"] = list()
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# Event propagation
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@property
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def childs(self):
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return self._widgets
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# Widget Managing
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def add_widget(self, widget_class: Type["Widget"], priority: int = 0, **widget_kwargs):
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"""
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Add a widget to the scene.
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:param widget_class: the class of the widget to add.
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:param priority: the priority of the widget.
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:param widget_kwargs: kwargs for the creation of the widget object.
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:return: the new created widget.
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"""
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widget: "Widget" = widget_class(self, **widget_kwargs)
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self._widgets.insert(priority, widget)
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return widget
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def remove_widget(self, widget: "Widget") -> None:
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"""
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Remove a widget from the scene.
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:param widget: the widget to remove.
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"""
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self._widgets.remove(widget)
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def clear_widget(self) -> None:
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"""
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Clear the scene from all the widgets.
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"""
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self._widgets.clear()
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# shortcut
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@property
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def valid(self) -> bool:
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"""
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Indique si la scène à tout ses éléments de formulaire valides
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:return: True si tous les éléments (Input, ...) sont correctement rempli.
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"""
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for widget in self._widgets:
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if isinstance(widget, Input) and not widget.valid: return False
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return True
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# event
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def on_draw(self) -> None:
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"""
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Draw all the objects in the scene.
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"""
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self.batch.draw()
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