Fix #671: Edit Artboards' Properties picks a size preset and flips the orientation

With the Artboard tool, the Properties panel showed the active artboard's name,
position and size but no quick way to turn it between portrait and landscape.
It now has a row with:
- Preset: New Document's saved and built-in presets, by category, matched in
  either orientation (Custom when none matches); choosing one sizes the
  artboard in its current orientation;
- Portrait and Landscape (the New Document toggle): the other one swaps the
  artboard's width and height.
The artboard's top-left corner stays put, so no art moves with it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

ROADMAP.md

@@ -4,7 +4,7 @@ VectorCraft is a clean-room, open-source, pure-Rust reimplementation of the Adob
 
 This file tracks **how far we are and what's left**. Time estimates are wall-clock hours of continuous Claude Opus 5.5 agent work (including builds and the CI gate), given both for **one agent** and for **4–6 parallel agents** on disjoint crates. They are counted from the remaining work (see [Parity estimate](#parity-estimate)), calibrated against measured throughput, and updated as work lands.
 
-_Last updated: 2026-10-09 (after placed documents (File › Place of a `.vectorcraft` file, linked), M4.14–M4.98, M8.1–M8.20, M14.4–M14.7, the MCP prompts, resource templates, completions and logging, the 2026-10-07 issue fixes, the Layers panel rework and the 2026-10-08 community contributions: Pen and shape-tool modifiers, path editing, Layers, Artboards, Swatches/Brushes and dialogs, Japanese composition and PDF text, Hebrew/Arabic type, interface languages (Spanish among them), the font menu, saved selections, MCP and EPS, the missing-font export warning (#319), open paths in the Shape Builder (#374), PDF/`.ai` import keeping strokes live and hidden and nested layers (#372), per-corner Live Corners (#381), SVG type opening at the size it draws at (#396), the Wayland clipboard with copied-file paste (#398), ruler guides that can be selected, moved and deleted (#414), two batches of Preferences options that were stored but unused (#394), skeleton reads with `document.find` for large documents over MCP (#416) and anchors dragged with Direct Selection snapping to points, segments and smart guides, clipped SVG layers opening as clipping layers (#420), PDF/`.ai` layers read on pages of tens of millions of operators (#419), Document Color Mode putting RGB greys on the black plate on request and converting pattern tiles (#421) and movable dialogs with Offset Path's Joins dropdown (#423) and numeric fields scrubbed by dragging their label (#400), stroke weight presets in the stroke unit (#426), the Appearance panel's Opacity popup (#430), type on a path brackets, flip and Type on a Path Options that keep the type in place (#429), Layers rows dragged with a ghost and dropped on the trash or New Layer (#435), tool flyouts opening on a right or corner press (#436), tool flyouts torn off into floating toolbars (#437), the Shape Builder's erase mode deleting edges too (#439), installed fonts registered outside the font folders and fonts installed while the app runs listed in the font menus (#443), alike circular corners on rectangles that aren't square (#442), tool cursors as OS cursors so the pointer no longer trails over the canvas (#444), artboards copied and pasted with their art (#446), guides dragged out of the rulers snapping to the art's side midpoints and the artboards, artboard guides (#451), the toolbar's double arrow and Window › Toolbars › Double Column switching between one and two columns in any window height (#455), the Smart Guides display options and Snapping Tolerance (#394), Font Size and Leading combo boxes with preset lists in the Character and Properties panels and the Control bar (#458), screenshots pasted from the clipboard on macOS, Windows and the web (#457), the Properties panel's Fill and Stroke matching the Control bar's, Illustrator's Window menu panel keys (Shift+F7 for Align…) and Alt-wheel zoom whatever the wheel preference (Discord feedback), the point/area type widget (Discord feedback), groups in legacy Illustrator .ai files (Discord feedback), a rotating desktop log file (#465), image controls in the Control bar and Properties panel: Image Trace with its presets, Mask, Crop Image, Embed/Unembed, and an Image Trace object's preset, Expand and Release (Discord feedback), the Pen working as the Anchor Point tool with Alt held over a selected path's handles and anchors, and anchor buttons that convert, connect and cut paths at the selected anchors (Discord feedback), Japanese hanging punctuation (burasagari, #463), Escape leaving Presentation Mode with no screen mode saved across restarts, documents dropped on the desktop app opening as tabs of their own and a note that an `.ai` file's art off its artboards isn't in the part read (#472), Add/Delete Anchor Point tool icons drawn from the Pen tool's (#479), EPS import running more of PostScript Level 3 (patterns, Type 3 fonts, mesh shadings, masked images, VM and resource probes), and a preview that stands in saying why (Discord feedback, #466, #469, #474), chords with modifiers recorded in Edit › Keyboard Shortcuts (#487), Type Object Selection by Path Only (#394), Anti-aliased Artwork (#394), Show Pixel Grid (#394), pen and touch taps pressed and lifted within one frame clicking where they tapped and the Linux/Wayland pen-tablet workaround (#491), bounding-box resizes landing on the other objects' anchors and centres with labels, and the Rotate, Scale, Shear and Reflect tools snapping their drags (#482), Shift-drag marquees that toggle the objects or anchors they reach and a Lasso whose Alt subtraction keeps the rest of the selection (#483), the mouse wheel stepping the focused numeric field, the dialogs' and preferences' drag values made such fields (#485), Show The Home Screen When No Documents Are Open (#394), Numbers Without Units Are Points (#394), Auto-Collapse Iconic Panels (#394), the Contextual Task Bar moved by its handle and its More Options menu pinning and resetting its position, a designed macOS DMG windoLine truncated
+_Last updated: 2026-10-09 (after placed documents (File › Place of a `.vectorcraft` file, linked), M4.14–M4.98, M8.1–M8.20, M14.4–M14.7, the MCP prompts, resource templates, completions and logging, the 2026-10-07 issue fixes, the Layers panel rework and the 2026-10-08 community contributions: Pen and shape-tool modifiers, path editing, Layers, Artboards, Swatches/Brushes and dialogs, Japanese composition and PDF text, Hebrew/Arabic type, interface languages (Spanish among them), the font menu, saved selections, MCP and EPS, the missing-font export warning (#319), open paths in the Shape Builder (#374), PDF/`.ai` import keeping strokes live and hidden and nested layers (#372), per-corner Live Corners (#381), SVG type opening at the size it draws at (#396), the Wayland clipboard with copied-file paste (#398), ruler guides that can be selected, moved and deleted (#414), two batches of Preferences options that were stored but unused (#394), skeleton reads with `document.find` for large documents over MCP (#416) and anchors dragged with Direct Selection snapping to points, segments and smart guides, clipped SVG layers opening as clipping layers (#420), PDF/`.ai` layers read on pages of tens of millions of operators (#419), Document Color Mode putting RGB greys on the black plate on request and converting pattern tiles (#421) and movable dialogs with Offset Path's Joins dropdown (#423) and numeric fields scrubbed by dragging their label (#400), stroke weight presets in the stroke unit (#426), the Appearance panel's Opacity popup (#430), type on a path brackets, flip and Type on a Path Options that keep the type in place (#429), Layers rows dragged with a ghost and dropped on the trash or New Layer (#435), tool flyouts opening on a right or corner press (#436), tool flyouts torn off into floating toolbars (#437), the Shape Builder's erase mode deleting edges too (#439), installed fonts registered outside the font folders and fonts installed while the app runs listed in the font menus (#443), alike circular corners on rectangles that aren't square (#442), tool cursors as OS cursors so the pointer no longer trails over the canvas (#444), artboards copied and pasted with their art (#446), guides dragged out of the rulers snapping to the art's side midpoints and the artboards, artboard guides (#451), the toolbar's double arrow and Window › Toolbars › Double Column switching between one and two columns in any window height (#455), the Smart Guides display options and Snapping Tolerance (#394), Font Size and Leading combo boxes with preset lists in the Character and Properties panels and the Control bar (#458), screenshots pasted from the clipboard on macOS, Windows and the web (#457), the Properties panel's Fill and Stroke matching the Control bar's, Illustrator's Window menu panel keys (Shift+F7 for Align…) and Alt-wheel zoom whatever the wheel preference (Discord feedback), the point/area type widget (Discord feedback), groups in legacy Illustrator .ai files (Discord feedback), a rotating desktop log file (#465), image controls in the Control bar and Properties panel: Image Trace with its presets, Mask, Crop Image, Embed/Unembed, and an Image Trace object's preset, Expand and Release (Discord feedback), the Pen working as the Anchor Point tool with Alt held over a selected path's handles and anchors, and anchor buttons that convert, connect and cut paths at the selected anchors (Discord feedback), Japanese hanging punctuation (burasagari, #463), Escape leaving Presentation Mode with no screen mode saved across restarts, documents dropped on the desktop app opening as tabs of their own and a note that an `.ai` file's art off its artboards isn't in the part read (#472), Add/Delete Anchor Point tool icons drawn from the Pen tool's (#479), EPS import running more of PostScript Level 3 (patterns, Type 3 fonts, mesh shadings, masked images, VM and resource probes), and a preview that stands in saying why (Discord feedback, #466, #469, #474), chords with modifiers recorded in Edit › Keyboard Shortcuts (#487), Type Object Selection by Path Only (#394), Anti-aliased Artwork (#394), Show Pixel Grid (#394), pen and touch taps pressed and lifted within one frame clicking where they tapped and the Linux/Wayland pen-tablet workaround (#491), bounding-box resizes landing on the other objects' anchors and centres with labels, and the Rotate, Scale, Shear and Reflect tools snapping their drags (#482), Shift-drag marquees that toggle the objects or anchors they reach and a Lasso whose Alt subtraction keeps the rest of the selection (#483), the mouse wheel stepping the focused numeric field, the dialogs' and preferences' drag values made such fields (#485), Show The Home Screen When No Documents Are Open (#394), Numbers Without Units Are Points (#394), Auto-Collapse Iconic Panels (#394), the Contextual Task Bar moved by its handle and its More Options menu pinning and resetting its position, a designed macOS DMG windoLine truncated
 
 ## Where we are
 

crates/ui-egui/src/dialogs/mod.rs

@@ -94,6 +94,7 @@ pub use export_for_screens::open as open_export_for_screens;
 pub(crate) use export_for_screens::{
     KIND as EXPORT_FOR_SCREENS, formats as screen_formats, open_assets as open_export_for_screens_assets, saved_rows as screen_saved_rows,
 };
+pub(crate) use new_document::preset_name;
 pub use new_document::{open as open_new_document, preset_card};
 pub use png_options::open as open_raster_options;
 pub use save_pdf::{open as open_save_pdf, open_preset as open_pdf_preset};

crates/ui-egui/src/dialogs/new_document.rs

@@ -255,7 +255,7 @@ fn is_builtin_preset(name: &str) -> bool {
 }
 
 /// A preset's name as shown: a built-in one translated, the user's as it is.
-fn preset_name(name: &str) -> &str {
+pub(crate) fn preset_name(name: &str) -> &str {
     if is_builtin_preset(name) { tl!(name) } else { name }
 }
 

crates/ui-egui/src/panels/properties.rs

@@ -3,6 +3,7 @@
 use egui::Ui;
 use serde_json::json;
 use vectorcraft_doc::{LiveShape, NodeKind, Unit};
+use vectorcraft_engine::cmd::newdoc;
 
 use super::{corner_radius_row, first_selected, pstate, set_pstate};
 use crate::theme::Tokens;
@@ -196,8 +197,8 @@ fn multi_color(app: &mut VectorcraftApp, ctx: &egui::Context) -> bool {
     }
 }
 
-/// Edit Artboards (the Artboard tool): the active artboard's name, position and size, New Artboard
-/// and Delete Artboard, and Exit back to the Selection tool (#530).
+/// Edit Artboards (the Artboard tool): the active artboard's name, position and size, its preset and
+/// orientation (#671), New Artboard and Delete Artboard, and Exit back to the Selection tool (#530).
 fn artboard_sections(app: &mut VectorcraftApp, ui: &mut Ui) {
     let units = app.session.general_unit();
     let n = app.session.active().map_or(0, |d| d.doc.artboards.len());
@@ -220,6 +221,7 @@ fn artboard_sections(app: &mut VectorcraftApp, ui: &mut Ui) {
                 ui.end_row();
             }
         });
+        artboard_size_row(app, ui, i, ab.rect.width(), ab.rect.height());
     }
     ui.add_space(4.0);
     let w = (ui.available_width() - 6.0) / 2.0;
@@ -238,6 +240,55 @@ fn artboard_sections(app: &mut VectorcraftApp, ui: &mut Ui) {
     }
 }
 
+/// Artboard `i`'s size preset (New Document's saved and built-in presets, by category, either way
+/// round; Custom when its `w` × `h` points match none) and its orientation. A preset sizes it in its
+/// current orientation; the other orientation swaps its width and height. Its top-left corner stays
+/// put either way.
+fn artboard_size_row(app: &mut VectorcraftApp, ui: &mut Ui, i: usize, w: f64, h: f64) {
+    let landscape = w > h;
+    // A preset `pw` × `ph` turned to the artboard's orientation.
+    let turned = |pw: f64, ph: f64| if (pw > ph) == landscape || pw == ph { (pw, ph) } else { (ph, pw) };
+    let same = |s: &newdoc::DocSettings| {
+        let (pw, ph) = turned(s.width, s.height);
+        (pw - w).abs() < 0.01 && (ph - h).abs() < 0.01
+    };
+    // Recent holds documents made, not presets.
+    let cats: Vec<(&str, Vec<newdoc::DocSettings>)> = newdoc::category_names()
+        .filter(|c| !c.eq_ignore_ascii_case("Recent"))
+        .filter_map(|c| Some((c, newdoc::category(&app.session, c)?)))
+        .filter(|(_, l)| !l.is_empty())
+        .collect();
+    let current = cats.iter().flat_map(|(_, l)| l).find(|s| same(s)).map_or(tl!("Custom"), |s| crate::dialogs::preset_name(&s.name)).to_string();
+    let mut size = None;
+    ui.horizontal(|ui| {
+        dim_label(ui, tl!("Preset:"));
+        size = widgets::combo(ui, "ab-preset", &current, 140.0, false, |ui| {
+            let mut chosen = None;
+            for (cat, list) in &cats {
+                ui.menu_button(tl!(cat), |ui| {
+                    widgets::menu_scroll(ui, |ui| {
+                        for s in list {
+                            if widgets::menu_item_name(ui, crate::dialogs::preset_name(&s.name), true, same(s)) {
+                                chosen = Some(turned(s.width, s.height));
+                            }
+                        }
+                    });
+                });
+            }
+            chosen
+        });
+        ui.spacing_mut().item_spacing.x = 2.0;
+        for (is_landscape, tip) in [(false, tl!("Portrait")), (true, tl!("Landscape"))] {
+            if widgets::orientation_button(ui, is_landscape, landscape == is_landscape, tip) && landscape != is_landscape {
+                size = Some((h, w));
+            }
+        }
+    });
+    if let Some((width, height)) = size {
+        app.run("artboard.setProps", json!({"index": i, "width": width, "height": height})).ok();
+    }
+}
+
 fn document_sections(app: &mut VectorcraftApp, ui: &mut Ui) {
     let units = app.session.general_unit();
     section_header(ui, tl!("Document"));
@@ -520,4 +571,41 @@ mod tests {
         click(&mut app, &ctx, &texts, "Exit");
         assert_eq!(app.session.tool_id(), "selection");
     }
+
+    /// #671: Edit Artboards shows the artboard's preset (Custom when it matches none) and its
+    /// orientation; the other orientation swaps its width and height, its corner staying put.
+    #[test]
+    fn edit_artboards_shows_the_preset_and_flips_the_orientation() {
+        let mut app = VectorcraftApp::new(Session::new(), Default::default());
+        app.run("file.new", json!({"preset": "Letter"})).unwrap();
+        app.run("artboard.setProps", json!({"index": 0, "x": 10, "y": 20})).unwrap();
+        app.select_tool("artboard");
+        let ctx = egui::Context::default();
+        let texts = frame(&mut app, &ctx, vec![]);
+        assert!(texts.iter().any(|(t, _)| t == "Preset:") && texts.iter().any(|(t, _)| t == "Letter"), "{texts:?}");
+        // The row's clickable widgets, left to right: the preset combo, Portrait, Landscape.
+        let row = texts.iter().find(|(t, _)| t == "Preset:").map(|(_, r)| *r).unwrap();
+        let buttons: Vec<Rect> = ctx.viewport(|vp| {
+            let mut r: Vec<Rect> = vp
+                .prev_pass
+                .widgets
+                .layers()
+                .flat_map(|(_, w)| w.iter())
+                .filter(|w| w.sense.senses_click() && w.rect.y_range().contains(row.center().y) && w.rect.left() > row.right())
+                .map(|w| w.rect)
+                .collect();
+            r.sort_by(|a, b| a.left().total_cmp(&b.left()));
+            r
+        });
+        let landscape = buttons.last().unwrap().center();
+        let press = |pressed| Event::PointerButton { pos: landscape, button: egui::PointerButton::Primary, pressed, modifiers: Default::default() };
+        frame(&mut app, &ctx, vec![Event::PointerMoved(landscape), press(true)]);
+        frame(&mut app, &ctx, vec![press(false)]);
+        let rect = app.session.active().unwrap().doc.artboards[0].rect;
+        assert_eq!((rect.x0, rect.y0, rect.width(), rect.height()), (10.0, 20.0, 792.0, 612.0), "landscape, same corner");
+        let texts = frame(&mut app, &ctx, vec![]);
+        assert!(texts.iter().any(|(t, _)| t == "Letter"), "still Letter, turned: {texts:?}");
+        app.run("artboard.setProps", json!({"index": 0, "width": 333})).unwrap();
+        assert!(frame(&mut app, &ctx, vec![]).iter().any(|(t, _)| t == "Custom"));
+    }
 }