Merge pull request #175 from danbulant/image-docs

Add documentation about image widget

guide/src/widgets/controls/image.md

@@ -3,4 +3,57 @@
 The [`Image`][image] widget displays an image/texture with configurable scaling
 options.
 
+## ImageCornerRadius
+
+Use [`ImageCornerRadius`][ImageCornerRadius] component to set the corner/border radius of an image. `CornerRadius` is not used.
+
+```rs
+image
+  .with_dynamic(&ImageCornerRadius, CornerRadius) // CornerRadius is a Dynamic(Lp) here
+  .with(&ImageCornerRadius, Lp::points(6)) // or, a static corner radius
+```
+
+## Dynamic textures
+
+Use a [`Dynamic`][Dynamic]`(`[`AnyTexture`][AnyTexture]`)`.
+
+You can default to a empty texture like so:
+
+```rs
+let dynamic_texture = Dynamic::new(
+    AnyTexture::Lazy(
+        LazyTexture::from_image(
+            image::DynamicImage::ImageRgba8(
+                image::ImageBuffer::new(1, 1)
+            ),
+            cushy::kludgine::wgpu::FilterMode::Linear
+        )
+    )
+);
+let widget = Image::new(dynamic_texture); // Creates image widget with an empty texture, that can later be changed
+```
+
+To load an image from bytes, use the [`image`][image-crate] crate and then pass it to LazyTexture:
+
+```rs
+let image = image::load_from_memory(&bytes).unwrap();
+let texture = LazyTexture::from_image(
+    image,
+    cushy::kludgine::wgpu::FilterMode::Linear
+);
+let texture = AnyTexture::Lazy(texture);
+dynamic_texture.set(texture);
+```
+
+## FilterMode
+
+[`FilterMode`][FilterMode] enum specifies the sampler to be used for when an image is scaled.  
+Linear smooths the version, making it blurry at the extremes but with less grain.  
+Nearest makes the result more pixelated with hard edges.
+
 [image]: <{{ docs }}/widgets/image/struct.Image.html>
+[image-crate]: <https://docs.rs/image/latest/image/>
+[ImageCornerRadius]: <{{ docs }}/widgets/image/struct.ImageCornerRadius.html>
+[FilterMode]: <https://docs.rs/wgpu-types/22.0.0/wgpu_types/enum.FilterMode.html>
+[Dynamic]: </about/reactive.html#what-is-a-dynamict>
+[AnyTexture]: <https://docs.rs/kludgine/latest/kludgine/enum.AnyTexture.html>