Introduce `center` widget helper

... and also make `center_x` and `center_y` set
`width` and `height` to `Length::Fill`, respectively.

This targets the most common use case when centering
things and removes a bunch of boilerplate as a result.

2 files changed, 19 insertions, 19 deletions

diff --git a/tiny_skia/src/engine.rs b/tiny_skia/src/engine.rs
index e9935bdb..544ff614 100644
--- a/tiny_skia/src/engine.rs
+++ b/tiny_skia/src/engine.rs
@@ -539,10 +539,10 @@ impl Engine {
     pub fn draw_image(
         &mut self,
         image: &Image,
-        transformation: Transformation,
-        pixels: &mut tiny_skia::PixmapMut<'_>,
-        clip_mask: &mut tiny_skia::Mask,
-        clip_bounds: Rectangle,
+        _transformation: Transformation,
+        _pixels: &mut tiny_skia::PixmapMut<'_>,
+        _clip_mask: &mut tiny_skia::Mask,
+        _clip_bounds: Rectangle,
     ) {
         match image {
             #[cfg(feature = "image")]
@@ -552,19 +552,19 @@ impl Engine {
                 bounds,
                 rotation,
             } => {
-                let physical_bounds = *bounds * transformation;
+                let physical_bounds = *bounds * _transformation;
 
-                if !clip_bounds.intersects(&physical_bounds) {
+                if !_clip_bounds.intersects(&physical_bounds) {
                     return;
                 }
 
-                let clip_mask = (!physical_bounds.is_within(&clip_bounds))
-                    .then_some(clip_mask as &_);
+                let clip_mask = (!physical_bounds.is_within(&_clip_bounds))
+                    .then_some(_clip_mask as &_);
 
                 let center = physical_bounds.center();
                 let radians = f32::from(*rotation);
 
-                let transform = into_transform(transformation).post_rotate_at(
+                let transform = into_transform(_transformation).post_rotate_at(
                     radians.to_degrees(),
                     center.x,
                     center.y,
@@ -574,7 +574,7 @@ impl Engine {
                     handle,
                     *filter_method,
                     *bounds,
-                    pixels,
+                    _pixels,
                     transform,
                     clip_mask,
                 );
@@ -586,19 +586,19 @@ impl Engine {
                 bounds,
                 rotation,
             } => {
-                let physical_bounds = *bounds * transformation;
+                let physical_bounds = *bounds * _transformation;
 
-                if !clip_bounds.intersects(&physical_bounds) {
+                if !_clip_bounds.intersects(&physical_bounds) {
                     return;
                 }
 
-                let clip_mask = (!physical_bounds.is_within(&clip_bounds))
-                    .then_some(clip_mask as &_);
+                let clip_mask = (!physical_bounds.is_within(&_clip_bounds))
+                    .then_some(_clip_mask as &_);
 
                 let center = physical_bounds.center();
                 let radians = f32::from(*rotation);
 
-                let transform = into_transform(transformation).post_rotate_at(
+                let transform = into_transform(_transformation).post_rotate_at(
                     radians.to_degrees(),
                     center.x,
                     center.y,
@@ -608,7 +608,7 @@ impl Engine {
                     handle,
                     *color,
                     physical_bounds,
-                    pixels,
+                    _pixels,
                     transform,
                     clip_mask,
                 );
diff --git a/tiny_skia/src/lib.rs b/tiny_skia/src/lib.rs
index 75aaaf92..e0cbfa0d 100644
--- a/tiny_skia/src/lib.rs
+++ b/tiny_skia/src/lib.rs
@@ -29,7 +29,7 @@ pub use geometry::Geometry;
 
 use crate::core::renderer;
 use crate::core::{
-    Background, Color, Font, Pixels, Point, Radians, Rectangle, Transformation,
+    Background, Color, Font, Pixels, Point, Rectangle, Transformation,
 };
 use crate::engine::Engine;
 use crate::graphics::compositor;
@@ -377,7 +377,7 @@ impl core::image::Renderer for Renderer {
         handle: Self::Handle,
         filter_method: core::image::FilterMethod,
         bounds: Rectangle,
-        rotation: Radians,
+        rotation: core::Radians,
     ) {
         let (layer, transformation) = self.layers.current_mut();
         layer.draw_image(
@@ -404,7 +404,7 @@ impl core::svg::Renderer for Renderer {
         handle: core::svg::Handle,
         color: Option<Color>,
         bounds: Rectangle,
-        rotation: Radians,
+        rotation: core::Radians,
     ) {
         let (layer, transformation) = self.layers.current_mut();
         layer.draw_svg(handle, color, bounds, transformation, rotation);