Moved example generation into cushy

Undocumented and unsupported, but this allows generating example images.

This push is testing that the image makes it through CI.

Refs #125

.github/workflows/docs.yml

@@ -57,6 +57,10 @@ jobs:
           cargo install mdbook-variables
 
       - name: Regenerate Example Images
+        run: |
+          CAPTURE=1 cargo test -p cushy --examples
+
+      - name: Regenerate Guide Example Images
         run: |
           CAPTURE=1 cargo test -p guide-examples --examples
 

examples/theme.rs

@@ -1,9 +1,9 @@
 use std::fmt::Write;
 
-use cushy::styles::components::{TextColor, WidgetBackground};
+use cushy::styles::components::{TextColor, TextSize, WidgetBackground};
 use cushy::styles::{
-    ColorScheme, ColorSchemeBuilder, ColorSource, ColorTheme, FixedTheme, SurfaceTheme, Theme,
+    ColorScheme, ColorSchemeBuilder, ColorSource, ColorTheme, Dimension, FixedTheme, SurfaceTheme,
-    ThemePair,
+    Theme, ThemePair,
 };
 use cushy::value::{Destination, Dynamic, MapEachCloned, Source};
 use cushy::widget::MakeWidget;
@@ -13,14 +13,17 @@ use cushy::widgets::input::InputValue;
 use cushy::widgets::slider::Slidable;
 use cushy::widgets::Space;
 use cushy::window::ThemeMode;
-use cushy::{Open, PendingApp};
+use cushy::{Cushy, Open, PendingApp};
 use figures::units::Lp;
 use kludgine::Color;
 use palette::OklabHue;
 
 fn main() -> cushy::Result {
     let app = PendingApp::default();
+    theme_editor(app.cushy().clone()).into_window().run_in(app)
+}
 
+fn theme_editor(cushy: Cushy) -> impl MakeWidget {
     let (theme_mode, theme_switcher) = dark_mode_picker();
 
     let scheme = Scheme::from(ColorScheme::default());
@@ -79,7 +82,6 @@ fn main() -> cushy::Result {
         .and(editors.neutral.1)
         .and(editors.neutral_variant.1)
         .and("Copy to Clipboard".into_button().on_click({
-            let cushy = app.cushy().clone();
             move |_| {
                 if let Some(mut clipboard) = cushy.clipboard_guard() {
                     let builder = color_scheme_builder.get();
@@ -115,9 +117,7 @@ fn main() -> cushy::Result {
         .themed(theme)
         .pad()
         .expand()
-        .into_window()
         .themed_mode(theme_mode)
-        .run_in(app)
 }
 
 struct Scheme<Primary, Other = Primary> {
@@ -436,6 +436,7 @@ fn color_theme(theme: Dynamic<ColorTheme>, label: &str) -> impl MakeWidget {
 fn swatch(background: Dynamic<Color>, label: &str, text: Dynamic<Color>) -> impl MakeWidget {
     label
         .with(&TextColor, text)
+        .with(&TextSize, Dimension::Lp(Lp::points(8)))
         .with(&WidgetBackground, background)
         .fit_horizontally()
         .fit_vertically()
@@ -492,3 +493,9 @@ impl FormatRust for ColorSchemeBuilder {
         }
     }
 }
+
+#[test]
+fn runs() {
+    let theme_editor = || theme_editor(Cushy::default());
+    cushy::example!(theme_editor, 1600, 900).untested_still_frame();
+}

guide/guide-examples/examples/align.rs

@@ -6,7 +6,6 @@ use cushy::styles::ThemePair;
 use cushy::widget::MakeWidget;
 use cushy::widgets::grid::{GridDimension, GridWidgets};
 use cushy::widgets::{Grid, Space};
-use guide_examples::book_example;
 
 // ANCHOR: content
 fn content() -> impl MakeWidget {
@@ -84,7 +83,7 @@ fn main() {
     let theme = ThemePair::default();
     let container_color = theme.dark.surface.low_container;
     let primary = theme.dark.primary.color;
-    book_example!(align).still_frame(|recorder| {
+    cushy::example!(align).still_frame(|recorder| {
         const LEFT: u32 = 145;
         const RIGHT: u32 = 705;
         const H_CENTER: u32 = (RIGHT + LEFT) / 2;

guide/guide-examples/examples/composition-makewidget.rs

@@ -41,7 +41,7 @@ fn composition_makewidget() -> impl cushy::widget::MakeWidget {
 }
 
 fn main() {
-    guide_examples::book_example!(composition_makewidget).untested_still_frame();
+    cushy::example!(composition_makewidget).untested_still_frame();
 }
 
 #[test]

guide/guide-examples/examples/composition-widget.rs

@@ -110,7 +110,7 @@ fn composition_widget() -> impl cushy::widget::MakeWidget {
 }
 
 fn main() {
-    guide_examples::book_example!(composition_widget).untested_still_frame();
+    cushy::example!(composition_widget).untested_still_frame();
 }
 
 #[test]

guide/guide-examples/examples/composition-wrapperwidget.rs

@@ -117,7 +117,7 @@ fn composition_wrapperwidget() -> impl cushy::widget::MakeWidget {
 }
 
 fn main() {
-    guide_examples::book_example!(composition_wrapperwidget).untested_still_frame();
+    cushy::example!(composition_wrapperwidget).untested_still_frame();
 }
 
 #[test]

guide/guide-examples/examples/hello-world.rs

@@ -12,5 +12,5 @@ fn book() {
         "Hello, World!"
     }
 
-    guide_examples::book_example!(hello_world).untested_still_frame();
+    cushy::example!(hello_world).untested_still_frame();
 }

guide/guide-examples/examples/intro.rs

@@ -39,7 +39,7 @@ fn book() {
         name_input.and(greeting).into_rows()
     }
 
-    guide_examples::book_example!(intro).animated(|animation| {
+    cushy::example!(intro).animated(|animation| {
         animation.wait_for(Duration::from_secs(1)).unwrap();
         animation
             .animate_text_input("Ferris 🦀", Duration::from_secs(1))

guide/guide-examples/examples/thread-progress.rs

@@ -3,7 +3,6 @@ use std::time::Duration;
 use cushy::value::{Destination, Dynamic, Source};
 use cushy::widget::MakeWidget;
 use cushy::widgets::progress::Progressable;
-use guide_examples::book_example;
 
 fn thread_progress() -> impl MakeWidget {
     // ANCHOR: example
@@ -23,7 +22,7 @@ fn thread_progress() -> impl MakeWidget {
 }
 
 fn main() {
-    book_example!(thread_progress).animated(|recorder| {
+    cushy::example!(thread_progress).animated(|recorder| {
         recorder.wait_for(Duration::from_secs(2)).unwrap();
     });
 }

guide/guide-examples/src/lib.rs

@@ -1,141 +1 @@
-use std::panic::AssertUnwindSafe;
-use std::path::PathBuf;
 
-use cushy::figures::units::Px;
-use cushy::figures::Size;
-use cushy::widget::MakeWidget;
-use cushy::widgets::container::ContainerShadow;
-use cushy::window::{AnimationRecorder, Rgba8, VirtualRecorder, VirtualRecorderBuilder};
-
-pub struct BookExampleBuilder {
-    name: &'static str,
-    recorder: VirtualRecorderBuilder<Rgba8>,
-}
-
-impl BookExampleBuilder {
-    pub fn finish(self) -> BookExample {
-        BookExample {
-            name: self.name,
-            recorder: self.recorder.finish().expect("error creating recorder"),
-        }
-    }
-
-    pub fn untested_still_frame(self) {
-        self.finish().untested_still_frame()
-    }
-
-    pub fn prepare_with<Prepare>(self, prepare: Prepare) -> BookExample
-    where
-        Prepare: FnOnce(&mut VirtualRecorder<Rgba8>),
-    {
-        self.finish().prepare_with(prepare)
-    }
-
-    pub fn still_frame<Test>(self, test: Test)
-    where
-        Test: FnOnce(&mut VirtualRecorder<Rgba8>),
-    {
-        self.finish().still_frame(test);
-    }
-
-    pub fn animated<Test>(self, test: Test)
-    where
-        Test: FnOnce(&mut AnimationRecorder<'_, Rgba8>),
-    {
-        self.finish().animated(test);
-    }
-}
-
-fn target_dir() -> PathBuf {
-    let target_dir = std::env::current_dir()
-        .expect("missing current dir")
-        .parent()
-        .expect("missing guide folder")
-        .join("src")
-        .join("examples");
-    assert!(
-        target_dir.is_dir(),
-        "current directory is not guide-examples"
-    );
-
-    target_dir
-}
-
-pub struct BookExample {
-    name: &'static str,
-    recorder: VirtualRecorder<Rgba8>,
-}
-
-impl BookExample {
-    pub fn build(name: &'static str, interface: impl MakeWidget) -> BookExampleBuilder {
-        BookExampleBuilder {
-            name,
-            recorder: interface
-                .contain()
-                .shadow(ContainerShadow::drop(Px::new(16)))
-                .width(Px::new(750))
-                .build_recorder()
-                .with_alpha()
-                .resize_to_fit()
-                .size(Size::new(750, 432)),
-        }
-    }
-
-    pub fn untested_still_frame(self) {
-        self.still_frame(|_| {});
-    }
-
-    pub fn prepare_with<Prepare>(mut self, prepare: Prepare) -> Self
-    where
-        Prepare: FnOnce(&mut VirtualRecorder<Rgba8>),
-    {
-        prepare(&mut self.recorder);
-        self
-    }
-
-    pub fn still_frame<Test>(mut self, test: Test)
-    where
-        Test: FnOnce(&mut VirtualRecorder<Rgba8>),
-    {
-        let capture = std::env::var("CAPTURE").is_ok();
-        let errored =
-            std::panic::catch_unwind(AssertUnwindSafe(|| test(&mut self.recorder))).is_err();
-        if errored || capture {
-            let path = target_dir().join(format!("{}.png", self.name));
-            self.recorder
-                .image()
-                .save(&path)
-                .expect("error saving file");
-            println!("Wrote {}", path.display());
-
-            if errored {
-                std::process::exit(-1);
-            }
-        }
-    }
-
-    pub fn animated<Test>(mut self, test: Test)
-    where
-        Test: FnOnce(&mut AnimationRecorder<'_, Rgba8>),
-    {
-        let mut animation = self.recorder.record_animated_png(60);
-        let capture = std::env::var("CAPTURE").is_ok();
-        let errored = std::panic::catch_unwind(AssertUnwindSafe(|| test(&mut animation))).is_err();
-        if errored || capture {
-            let path = target_dir().join(format!("{}.png", self.name));
-            animation.write_to(&path).expect("error saving file");
-            println!("Wrote {}", path.display());
-
-            if errored {
-                std::process::exit(-1);
-            }
-        }
-    }
-}
-
-#[macro_export]
-macro_rules! book_example {
-    ($name:ident) => {
-        guide_examples::BookExample::build(stringify!($name), $name())
-    };
-}

src/example.rs

@@ -0,0 +1,164 @@
+use std::panic::AssertUnwindSafe;
+use std::path::PathBuf;
+
+use cushy::figures::units::Px;
+use cushy::figures::Size;
+use cushy::widget::MakeWidget;
+use cushy::widgets::container::ContainerShadow;
+use cushy::window::{AnimationRecorder, Rgba8, VirtualRecorder, VirtualRecorderBuilder};
+
+pub struct ExampleBuilder {
+    name: &'static str,
+    recorder: VirtualRecorderBuilder<Rgba8>,
+}
+
+impl ExampleBuilder {
+    #[must_use]
+    pub fn finish(self) -> Example {
+        Example {
+            name: self.name,
+            recorder: self.recorder.finish().expect("error creating recorder"),
+        }
+    }
+
+    pub fn untested_still_frame(self) {
+        self.finish().untested_still_frame();
+    }
+
+    pub fn prepare_with<Prepare>(self, prepare: Prepare) -> Example
+    where
+        Prepare: FnOnce(&mut VirtualRecorder<Rgba8>),
+    {
+        self.finish().prepare_with(prepare)
+    }
+
+    pub fn still_frame<Test>(self, test: Test)
+    where
+        Test: FnOnce(&mut VirtualRecorder<Rgba8>),
+    {
+        self.finish().still_frame(test);
+    }
+
+    pub fn animated<Test>(self, test: Test)
+    where
+        Test: FnOnce(&mut AnimationRecorder<'_, Rgba8>),
+    {
+        self.finish().animated(test);
+    }
+}
+
+fn target_dir() -> PathBuf {
+    let current_dir = std::env::current_dir().expect("missing current dir");
+    let mut target_dir = current_dir.join("guide").join("src").join("examples");
+    if !target_dir.is_dir() {
+        target_dir = current_dir
+            .parent()
+            .expect("missing guide folder")
+            .join("src")
+            .join("examples");
+    }
+    assert!(
+        target_dir.is_dir(),
+        "current directory is not guide-examples or the root directory"
+    );
+
+    target_dir
+}
+
+pub struct Example {
+    name: &'static str,
+    recorder: VirtualRecorder<Rgba8>,
+}
+
+impl Example {
+    pub fn build(
+        name: &'static str,
+        interface: impl MakeWidget,
+        width: u16,
+        height: Option<u16>,
+    ) -> ExampleBuilder {
+        let mut contents = interface
+            .contain()
+            .shadow(ContainerShadow::drop(Px::new(16)))
+            .width(Px::new(i32::from(width)));
+        if let Some(height) = height {
+            contents = contents.height(Px::new(i32::from(height)));
+        }
+        ExampleBuilder {
+            name,
+            recorder: contents
+                .build_recorder()
+                .with_alpha()
+                .resize_to_fit()
+                .size(Size::new(
+                    u32::from(width),
+                    u32::from(height.unwrap_or(432)),
+                )),
+        }
+    }
+
+    pub fn untested_still_frame(self) {
+        self.still_frame(|_| {});
+    }
+
+    #[must_use]
+    pub fn prepare_with<Prepare>(mut self, prepare: Prepare) -> Self
+    where
+        Prepare: FnOnce(&mut VirtualRecorder<Rgba8>),
+    {
+        prepare(&mut self.recorder);
+        self
+    }
+
+    pub fn still_frame<Test>(mut self, test: Test)
+    where
+        Test: FnOnce(&mut VirtualRecorder<Rgba8>),
+    {
+        let capture = std::env::var("CAPTURE").is_ok();
+        let errored =
+            std::panic::catch_unwind(AssertUnwindSafe(|| test(&mut self.recorder))).is_err();
+        if errored || capture {
+            let path = target_dir().join(format!("{}.png", self.name));
+            self.recorder
+                .image()
+                .save(&path)
+                .expect("error saving file");
+            println!("Wrote {}", path.display());
+
+            if errored {
+                std::process::exit(-1);
+            }
+        }
+    }
+
+    pub fn animated<Test>(mut self, test: Test)
+    where
+        Test: FnOnce(&mut AnimationRecorder<'_, Rgba8>),
+    {
+        let mut animation = self.recorder.record_animated_png(60);
+        let capture = std::env::var("CAPTURE").is_ok();
+        let errored = std::panic::catch_unwind(AssertUnwindSafe(|| test(&mut animation))).is_err();
+        if errored || capture {
+            let path = target_dir().join(format!("{}.png", self.name));
+            animation.write_to(&path).expect("error saving file");
+            println!("Wrote {}", path.display());
+
+            if errored {
+                std::process::exit(-1);
+            }
+        }
+    }
+}
+
+#[macro_export]
+macro_rules! example {
+    ($name:ident) => {
+        $crate::example!($name, 750)
+    };
+    ($name:ident, $width:expr) => {
+        $crate::example::Example::build(stringify!($name), $name(), $width, None)
+    };
+    ($name:ident, $width:expr, $height:expr) => {
+        $crate::example::Example::build(stringify!($name), $name(), $width, Some($height))
+    };
+}

src/lib.rs

@@ -23,6 +23,9 @@ pub mod value;
 pub mod widget;
 pub mod widgets;
 pub mod window;
+
+#[doc(hidden)]
+pub mod example;
 use std::ops::{Add, AddAssign, Sub, SubAssign};
 
 #[cfg(feature = "tokio")]