#pragma once #include #include "canvas.h" typedef struct Widget Widget; typedef void (*WidgetDrawCallback)(CanvasApi* api, void* context); typedef void (*WidgetInputCallback)(InputEvent* event, void* context); Widget* widget_alloc(); void widget_free(Widget* widget); void widget_enabled_set(Widget* widget, bool enabled); bool widget_is_enabled(Widget* widget); void widget_draw_callback_set(Widget* widget, WidgetDrawCallback callback, void* context); void widget_input_callback_set(Widget* widget, WidgetInputCallback callback, void* context); // emit update signal void widget_update(Widget* widget);