diff options
Diffstat (limited to '')
-rw-r--r-- | native/src/widget/image.rs | 140 |
1 files changed, 9 insertions, 131 deletions
diff --git a/native/src/widget/image.rs b/native/src/widget/image.rs index 4d8e0a3f..66e95265 100644 --- a/native/src/widget/image.rs +++ b/native/src/widget/image.rs @@ -2,21 +2,19 @@ pub mod viewer; pub use viewer::Viewer; +use crate::image::{self, Handle}; use crate::layout; +use crate::renderer; use crate::{Element, Hasher, Layout, Length, Point, Rectangle, Size, Widget}; -use std::{ - hash::{Hash, Hasher as _}, - path::PathBuf, - sync::Arc, -}; +use std::hash::Hash; /// A frame that displays an image while keeping aspect ratio. /// /// # Example /// /// ``` -/// # use iced_native::Image; +/// # use iced_native::widget::Image; /// # /// let image = Image::new("resources/ferris.png"); /// ``` @@ -54,7 +52,7 @@ impl Image { impl<Message, Renderer> Widget<Message, Renderer> for Image where - Renderer: self::Renderer, + Renderer: image::Renderer, { fn width(&self) -> Length { self.width @@ -92,12 +90,12 @@ where fn draw( &self, renderer: &mut Renderer, - _defaults: &Renderer::Defaults, + _style: &renderer::Style, layout: Layout<'_>, _cursor_position: Point, _viewport: &Rectangle, - ) -> Renderer::Output { - renderer.draw(self.handle.clone(), layout) + ) { + renderer.draw(self.handle.clone(), layout.bounds()); } fn hash_layout(&self, state: &mut Hasher) { @@ -110,129 +108,9 @@ where } } -/// An [`Image`] handle. -#[derive(Debug, Clone)] -pub struct Handle { - id: u64, - data: Arc<Data>, -} - -impl Handle { - /// Creates an image [`Handle`] pointing to the image of the given path. - /// - /// Makes an educated guess about the image format by examining the data in the file. - pub fn from_path<T: Into<PathBuf>>(path: T) -> Handle { - Self::from_data(Data::Path(path.into())) - } - - /// Creates an image [`Handle`] containing the image pixels directly. This - /// function expects the input data to be provided as a `Vec<u8>` of BGRA - /// pixels. - /// - /// This is useful if you have already decoded your image. - pub fn from_pixels(width: u32, height: u32, pixels: Vec<u8>) -> Handle { - Self::from_data(Data::Pixels { - width, - height, - pixels, - }) - } - - /// Creates an image [`Handle`] containing the image data directly. - /// - /// Makes an educated guess about the image format by examining the given data. - /// - /// This is useful if you already have your image loaded in-memory, maybe - /// because you downloaded or generated it procedurally. - pub fn from_memory(bytes: Vec<u8>) -> Handle { - Self::from_data(Data::Bytes(bytes)) - } - - fn from_data(data: Data) -> Handle { - let mut hasher = Hasher::default(); - data.hash(&mut hasher); - - Handle { - id: hasher.finish(), - data: Arc::new(data), - } - } - - /// Returns the unique identifier of the [`Handle`]. - pub fn id(&self) -> u64 { - self.id - } - - /// Returns a reference to the image [`Data`]. - pub fn data(&self) -> &Data { - &self.data - } -} - -impl<T> From<T> for Handle -where - T: Into<PathBuf>, -{ - fn from(path: T) -> Handle { - Handle::from_path(path.into()) - } -} - -impl Hash for Handle { - fn hash<H: std::hash::Hasher>(&self, state: &mut H) { - self.id.hash(state); - } -} - -/// The data of an [`Image`]. -#[derive(Clone, Hash)] -pub enum Data { - /// File data - Path(PathBuf), - - /// In-memory data - Bytes(Vec<u8>), - - /// Decoded image pixels in BGRA format. - Pixels { - /// The width of the image. - width: u32, - /// The height of the image. - height: u32, - /// The pixels. - pixels: Vec<u8>, - }, -} - -impl std::fmt::Debug for Data { - fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - match self { - Data::Path(path) => write!(f, "Path({:?})", path), - Data::Bytes(_) => write!(f, "Bytes(...)"), - Data::Pixels { width, height, .. } => { - write!(f, "Pixels({} * {})", width, height) - } - } - } -} - -/// The renderer of an [`Image`]. -/// -/// Your [renderer] will need to implement this trait before being able to use -/// an [`Image`] in your user interface. -/// -/// [renderer]: crate::renderer -pub trait Renderer: crate::Renderer { - /// Returns the dimensions of an [`Image`] located on the given path. - fn dimensions(&self, handle: &Handle) -> (u32, u32); - - /// Draws an [`Image`]. - fn draw(&mut self, handle: Handle, layout: Layout<'_>) -> Self::Output; -} - impl<'a, Message, Renderer> From<Image> for Element<'a, Message, Renderer> where - Renderer: self::Renderer, + Renderer: image::Renderer, { fn from(image: Image) -> Element<'a, Message, Renderer> { Element::new(image) |