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/*! Resources trait definition */ /* Copyright (C) 2016 Gabriel Dubé This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ pub mod font; use std::any::TypeId; use std::hash::Hash; use ui::Ui; use controls::AnyHandle; use error::Error; pub use resources::font::{FontT, Font}; /** Structures implementing this trait can be used by a Ui to build a Resource */ pub trait ResourceT<ID: Clone+Hash> { /** Should return the TypeId of the generated resource. For example a `FontT` struct returns the TypeId of a `Font` struct. */ fn type_id(&self) -> TypeId; /** Should instance the resource and return it as a Box<Resource>. If an error is raised, it will be returned by `ui.commit`. */ fn build(&self, ui: &Ui<ID>) -> Result<Box<Resource>, Error>; } /** Structures implementing this trait are resources that can be stored in a Ui */ pub trait Resource { /** Should return the underlying handle to the object */ fn handle(&self) -> AnyHandle; /** If specified, should free any ressource allocated in the template `build` function. */ fn free(&mut self) {} }