Add image and hash snapshot-based testing to iced_test

winit/src/program/state.rs

@@ -1,17 +1,18 @@
 use crate::conversion;
-use crate::core::{mouse, window};
+use crate::core::{mouse, theme, window};
 use crate::core::{Color, Size};
 use crate::graphics::Viewport;
-use crate::program::{self, Program};
-use std::fmt::{Debug, Formatter};
+use crate::program::Program;
 
 use winit::event::{Touch, WindowEvent};
 use winit::window::Window;
 
+use std::fmt::{Debug, Formatter};
+
 /// The state of a multi-windowed [`Program`].
 pub struct State<P: Program>
 where
-    P::Theme: program::DefaultStyle,
+    P::Theme: theme::Base,
 {
     title: String,
     scale_factor: f64,
@@ -20,12 +21,12 @@ where
     cursor_position: Option<winit::dpi::PhysicalPosition<f64>>,
     modifiers: winit::keyboard::ModifiersState,
     theme: P::Theme,
-    appearance: program::Appearance,
+    style: theme::Style,
 }
 
 impl<P: Program> Debug for State<P>
 where
-    P::Theme: program::DefaultStyle,
+    P::Theme: theme::Base,
 {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         f.debug_struct("multi_window::State")
@@ -34,14 +35,14 @@ where
             .field("viewport", &self.viewport)
             .field("viewport_version", &self.viewport_version)
             .field("cursor_position", &self.cursor_position)
-            .field("appearance", &self.appearance)
+            .field("style", &self.style)
             .finish()
     }
 }
 
 impl<P: Program> State<P>
 where
-    P::Theme: program::DefaultStyle,
+    P::Theme: theme::Base,
 {
     /// Creates a new [`State`] for the provided [`Program`]'s `window`.
     pub fn new(
@@ -52,7 +53,7 @@ where
         let title = application.title(window_id);
         let scale_factor = application.scale_factor(window_id);
         let theme = application.theme(window_id);
-        let appearance = application.style(&theme);
+        let style = application.style(&theme);
 
         let viewport = {
             let physical_size = window.inner_size();
@@ -71,7 +72,7 @@ where
             cursor_position: None,
             modifiers: winit::keyboard::ModifiersState::default(),
             theme,
-            appearance,
+            style,
         }
     }
 
@@ -127,12 +128,12 @@ where
 
     /// Returns the current background [`Color`] of the [`State`].
     pub fn background_color(&self) -> Color {
-        self.appearance.background_color
+        self.style.background_color
     }
 
     /// Returns the current text [`Color`] of the [`State`].
     pub fn text_color(&self) -> Color {
-        self.appearance.text_color
+        self.style.text_color
     }
 
     /// Processes the provided window event and updates the [`State`] accordingly.
@@ -237,6 +238,6 @@ where
 
         // Update theme and appearance
         self.theme = application.theme(window_id);
-        self.appearance = application.style(&self.theme);
+        self.style = application.style(&self.theme);
     }
 }

winit/src/program/window_manager.rs

@@ -1,9 +1,10 @@
 use crate::core::mouse;
+use crate::core::theme;
 use crate::core::time::Instant;
 use crate::core::window::Id;
 use crate::core::{Point, Size};
 use crate::graphics::Compositor;
-use crate::program::{DefaultStyle, Program, State};
+use crate::program::{Program, State};
 
 use std::collections::BTreeMap;
 use std::sync::Arc;
@@ -14,7 +15,7 @@ pub struct WindowManager<P, C>
 where
     P: Program,
     C: Compositor<Renderer = P::Renderer>,
-    P::Theme: DefaultStyle,
+    P::Theme: theme::Base,
 {
     aliases: BTreeMap<winit::window::WindowId, Id>,
     entries: BTreeMap<Id, Window<P, C>>,
@@ -24,7 +25,7 @@ impl<P, C> WindowManager<P, C>
 where
     P: Program,
     C: Compositor<Renderer = P::Renderer>,
-    P::Theme: DefaultStyle,
+    P::Theme: theme::Base,
 {
     pub fn new() -> Self {
         Self {
@@ -132,7 +133,7 @@ impl<P, C> Default for WindowManager<P, C>
 where
     P: Program,
     C: Compositor<Renderer = P::Renderer>,
-    P::Theme: DefaultStyle,
+    P::Theme: theme::Base,
 {
     fn default() -> Self {
         Self::new()
@@ -144,7 +145,7 @@ pub struct Window<P, C>
 where
     P: Program,
     C: Compositor<Renderer = P::Renderer>,
-    P::Theme: DefaultStyle,
+    P::Theme: theme::Base,
 {
     pub raw: Arc<winit::window::Window>,
     pub state: State<P>,
@@ -160,7 +161,7 @@ impl<P, C> Window<P, C>
 where
     P: Program,
     C: Compositor<Renderer = P::Renderer>,
-    P::Theme: DefaultStyle,
+    P::Theme: theme::Base,
 {
     pub fn position(&self) -> Option<Point> {
         self.raw