72 lines
2.2 KiB
Rust
72 lines
2.2 KiB
Rust
/*
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Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
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This file is part of FitnessTrax.
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FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
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General Public License as published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
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*/
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//! A Widget container for a single components
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use glib::Object;
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use gtk::{prelude::*, subclass::prelude::*};
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use std::cell::RefCell;
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pub struct SingletonPrivate {
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widget: RefCell<gtk::Widget>,
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}
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impl Default for SingletonPrivate {
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fn default() -> Self {
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Self {
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widget: RefCell::new(gtk::Label::new(None).upcast()),
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}
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}
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}
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#[glib::object_subclass]
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impl ObjectSubclass for SingletonPrivate {
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const NAME: &'static str = "Singleton";
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type Type = Singleton;
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type ParentType = gtk::Box;
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}
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impl ObjectImpl for SingletonPrivate {}
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impl WidgetImpl for SingletonPrivate {}
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impl BoxImpl for SingletonPrivate {}
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glib::wrapper! {
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/// The Singleton component contains exactly one child widget. The swap function makes it easy
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/// to handle the job of swapping that child out for a different one.
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pub struct Singleton(ObjectSubclass<SingletonPrivate>) @extends gtk::Box, gtk::Widget;
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}
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impl Default for Singleton {
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fn default() -> Self {
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let s: Self = Object::builder().build();
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s.append(&*s.imp().widget.borrow());
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s
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}
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}
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impl Singleton {
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pub fn swap(&self, new_widget: &impl IsA<gtk::Widget>) {
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let new_widget = new_widget.clone().upcast();
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self.remove(&*self.imp().widget.borrow());
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self.append(&new_widget);
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*self.imp().widget.borrow_mut() = new_widget;
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}
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}
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pub trait SingletonImpl: WidgetImpl + BoxImpl {}
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unsafe impl<T: SingletonImpl> IsSubclassable<T> for Singleton {}
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