Fix Show and Hide Guides (#3219)

crates/render/src/lib.rs

@@ -125,6 +125,9 @@ pub struct RenderOptions {
     pub skip_templates: bool,
     /// View › Hide Template: template layers left out of the screen view (guides stay).
     pub hide_templates: bool,
+    /// View › Hide Guides: paths made into guides left out of the screen view. Exports use
+    /// `skip_templates`, which independently leaves both templates and guides out.
+    pub hide_guides: bool,
     /// Pattern editing mode's tile edge and swatch bounds colour (Object → Pattern → Tile Edge
     /// Color), RGB.
     pub tile_edge: [u8; 3],
@@ -246,6 +249,7 @@ impl Default for RenderOptions {
             trim: false,
             skip_templates: false,
             hide_templates: false,
+            hide_guides: false,
             tile_edge: vectorcraft_doc::LAYER_COLORS[0].1,
             guide: ([0x4a, 0xd8, 0xff], false),
             mask_view: None,
@@ -1036,9 +1040,9 @@ impl Renderer {
 
     /// Whether `a` is left out of this frame: hidden, a skipped template or guide, or culled.
     fn skipped(&mut self, f: &Frame, a: &Arc<Node>) -> bool {
-        let skipped_template = (f.opts.skip_templates || f.opts.hide_templates) && matches!(a.kind, NodeKind::Layer { template: true, .. })
-            || f.opts.skip_templates && matches!(a.kind, NodeKind::Path { guide: true, .. });
-        if !a.visible || skipped_template || f.opts.hidden.contains(&a.id) {
+        let skipped_view_item = (f.opts.skip_templates || f.opts.hide_templates) && matches!(a.kind, NodeKind::Layer { template: true, .. })
+            || (f.opts.skip_templates || f.opts.hide_guides) && matches!(a.kind, NodeKind::Path { guide: true, .. });
+        if !a.visible || skipped_view_item || f.opts.hidden.contains(&a.id) {
             return true;
         }
         match self.bounds_of(f.symbols, a) {

crates/render/src/tests_layeropts.rs

@@ -166,3 +166,23 @@ fn guides_draw_on_screen_only() {
     assert!(drawn(false) > 0, "on screen the guide shows");
     assert_eq!(drawn(true), 0, "exports leave it out");
 }
+
+/// #3219: View > Hide Guides hides paths made into guides without using the export/template
+/// filtering switch; Show Guides (the default) draws them again.
+#[test]
+fn hide_guides_hides_guide_paths_on_screen() {
+    let mut d = Document::new(100.0, 100.0);
+    let l = d.layers[0].id;
+    let mut g = Node::path(d.alloc_id(), shapes::rectangle(Rect::new(70.0, 70.0, 90.0, 90.0)), Appearance::default());
+    if let NodeKind::Path { guide, .. } = &mut g.kind {
+        *guide = true;
+    }
+    d.insert(Some(l), 0, g).unwrap();
+    let pixels = |hide_guides: bool| {
+        let opts = RenderOptions { background: Some([255; 4]), hide_guides, ..Default::default() };
+        let r = Renderer::new().render(&d, 100, 100, Affine::IDENTITY, &opts);
+        (60..100).flat_map(|y| (60..100).map(move |x| (x, y))).filter(|&(x, y)| r.pixel(x, y) != [255; 4]).count()
+    };
+    assert!(pixels(false) > 0, "Show Guides draws the guide path");
+    assert_eq!(pixels(true), 0, "Hide Guides leaves the guide path out");
+}

crates/ui-egui/src/canvas.rs

@@ -330,6 +330,7 @@ pub fn show(app: &mut VectorcraftApp, ui: &mut Ui) {
         outline: app.ui.view.outline,
         trim: app.ui.view.trim_view,
         templates: app.ui.view.templates,
+        guides: app.ui.view.guides,
         ppp,
         hidden: vec![],
         rot: v.rotation,
@@ -383,6 +384,7 @@ pub fn show(app: &mut VectorcraftApp, ui: &mut Ui) {
             overprint_preview: vectorcraft_render::proof::overprint_preview_on(),
             trim: app.ui.view.trim_view,
             hide_templates: !app.ui.view.templates,
+            hide_guides: !app.ui.view.guides,
             tile_edge: vectorcraft_color::Color::from_hex(&app.session.prefs.pattern_tile_edge_color).map_or(opts.tile_edge, |c| {
                 let [r, g, b, _] = c.to_rgba8(1.0);
                 [r, g, b]
@@ -1951,7 +1953,7 @@ fn hit_with<T>(
         path_only: prefs.object_selection_by_path_only,
         type_path_only: prefs.type_selection_by_path_only,
         scope: app.session.active().and_then(|st| st.isolation),
-        ..Default::default()
+        skip_guides: !app.ui.view.guides,
     };
     test(&app.session.active()?.doc, p, opt)
 }
@@ -5630,6 +5632,25 @@ mod tests {
 
     /// Smart Guides › Object Highlighting (#394): the outline of the object under the pointer does not
     /// show with View › Snap to Grid or View › Pixel Preview on, even with Smart Guides and the option on.
+    /// #3219: guide paths hidden by View > Hide Guides are not hittable and cannot reveal
+    /// themselves through Smart Guides object highlighting.
+    #[test]
+    fn hidden_guide_paths_have_no_hover_highlight() {
+        let mut app = VectorcraftApp::new(Session::new(), Default::default());
+        app.run("file.new", json!({"width": 400, "height": 300})).unwrap();
+        let id = app.run("shape.rectangle", json!({"x": 100, "y": 100, "width": 100, "height": 100})).unwrap()["id"].as_u64().unwrap();
+        app.run("view.guides.make", json!({})).unwrap();
+        app.run("select.none", json!({})).unwrap();
+        app.select_tool("selection");
+        app.ui.view.guides = false;
+        let ctx = egui::Context::default();
+        frame(&mut app, &ctx, vec![]);
+        let xf = Xf::new(app.canvas_rect.unwrap(), app.view().unwrap());
+        let color = c32(app.session.active().unwrap().doc.layer_color(vectorcraft_doc::NodeId(id)));
+        frame(&mut app, &ctx, vec![egui::Event::PointerMoved(xf.to_screen(Point::new(100.0, 150.0)))]);
+        assert!(drawn_in(&mut app, &ctx, color, 1.5).is_empty(), "a hidden guide has no hover highlight");
+    }
+
     #[test]
     fn snap_to_grid_and_pixel_preview_hide_the_hover_outline() {
         let mut app = VectorcraftApp::new(Session::new(), Default::default());

crates/ui-egui/src/lib.rs

@@ -354,8 +354,10 @@ pub struct CacheKey {
     pub h: u32,
     pub outline: bool,
     pub trim: bool,
-    /// View › Hide Template: template layers left out ([`vectorcraft_render::RenderOptions::skip_templates`]).
+    /// View › Hide Template: template layers left out ([`vectorcraft_render::RenderOptions::hide_templates`]).
     pub templates: bool,
+    /// View › Show/Hide Guides: whether guide paths are visible in the artwork raster.
+    pub guides: bool,
     pub ppp: f32,
     pub hidden: Vec<u64>,
     pub rot: f64,