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-rw-r--r--native/src/widget/image.rs81
1 files changed, 71 insertions, 10 deletions
diff --git a/native/src/widget/image.rs b/native/src/widget/image.rs
index b2541b87..8420ca76 100644
--- a/native/src/widget/image.rs
+++ b/native/src/widget/image.rs
@@ -1,10 +1,58 @@
//! Display images in your user interface.
-use crate::{layout, Element, Hasher, Layout, Point, Widget};
+use crate::{layout, Element, Hasher, Layout, Length, Point, Size, Widget};
use std::hash::Hash;
-pub use iced_core::Image;
+/// A frame that displays an image while keeping aspect ratio.
+///
+/// # Example
+///
+/// ```
+/// # use iced_native::Image;
+///
+/// let image = Image::new("resources/ferris.png");
+/// ```
+#[derive(Debug)]
+pub struct Image {
+ /// The image path
+ pub path: String,
+
+ /// The width of the image
+ pub width: Length,
+
+ /// The height of the image
+ pub height: Length,
+}
+
+impl Image {
+ /// Creates a new [`Image`] with the given path.
+ ///
+ /// [`Image`]: struct.Image.html
+ pub fn new<T: Into<String>>(path: T) -> Self {
+ Image {
+ path: path.into(),
+ width: Length::Shrink,
+ height: Length::Shrink,
+ }
+ }
+
+ /// Sets the width of the [`Image`] boundaries.
+ ///
+ /// [`Image`]: struct.Image.html
+ pub fn width(mut self, width: Length) -> Self {
+ self.width = width;
+ self
+ }
+
+ /// Sets the height of the [`Image`] boundaries.
+ ///
+ /// [`Image`]: struct.Image.html
+ pub fn height(mut self, height: Length) -> Self {
+ self.height = height;
+ self
+ }
+}
impl<Message, Renderer> Widget<Message, Renderer> for Image
where
@@ -15,7 +63,26 @@ where
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
- renderer.layout(&self, limits)
+ let (width, height) = renderer.dimensions(&self.path);
+
+ let aspect_ratio = width as f32 / height as f32;
+
+ // TODO: Deal with additional cases
+ let (width, height) = match (self.width, self.height) {
+ (Length::Units(width), _) => (
+ self.width,
+ Length::Units((width as f32 / aspect_ratio).round() as u16),
+ ),
+ (_, _) => {
+ (Length::Units(width as u16), Length::Units(height as u16))
+ }
+ };
+
+ let mut size = limits.width(width).height(height).resolve(Size::ZERO);
+
+ size.height = size.width / aspect_ratio;
+
+ layout::Node::new(size)
}
fn draw(
@@ -41,13 +108,7 @@ where
/// [`Image`]: struct.Image.html
/// [renderer]: ../../renderer/index.html
pub trait Renderer: crate::Renderer {
- /// Creates a [`Node`] for the provided [`Image`].
- ///
- /// You should probably keep the original aspect ratio, if possible.
- ///
- /// [`Node`]: ../../struct.Node.html
- /// [`Image`]: struct.Image.html
- fn layout(&self, image: &Image, limits: &layout::Limits) -> layout::Node;
+ fn dimensions(&self, path: &str) -> (u32, u32);
/// Draws an [`Image`].
///