From 861a0759b0168bea4e5bd475a47f003e7ef1fe2b Mon Sep 17 00:00:00 2001 From: bflatastic Date: Fri, 9 Oct 2026 10:33:47 +0700 Subject: [PATCH] Part of #449: two fingers dragged on a touch screen pan the canvas A pinch already zoomed the canvas and a second finger already cancelled the first finger's press, but dragging two fingers together did nothing: the canvas only read wheel scrolls, and a touch screen sends touches. The fingers' movement (egui's multi-touch translation) now scrolls the canvas under either Zoom with Mouse Wheel setting, and zoom and scroll apply in the same frame, so a pinch that also slides pans too. Trackpads send scrolls, so nothing counts twice. Co-Authored-By: Claude Opus 5.5 --- ROADMAP.md | 2 +- crates/ui-egui/src/canvas.rs | 64 +++++++++++++++++++++++++++--------- 2 files changed, 50 insertions(+), 16 deletions(-) diff --git a/ROADMAP.md b/ROADMAP.md index e03763ef..8496cebf 100644 --- a/ROADMAP.md +++ b/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 window (#493), panels, panel groups and the Tools panel undocking into floating panels that move, stack and dock again (#495), the 0.5.0 startup crash on dual-GPU Linux desktops under Wayland fixed: the desktop's own GPU by default and a restart on the next GPU when one can't show the window (#502), path editing while drawing: Cmd/Ctrl with the Pen borrowing Direct Selection and drawing on afterwards, Pen+Alt reshaping segments, handles of a whole selected path dragging, and handle drags no longer re-gathering snap targets every move (#494), the Control bar's and Properties panel's Convert buttons for a path selected as a whole with Direct Selection, the Pen and the anchor tools (#504), the Pen closing a path dragged out of its first anchor every time, without flicker (#501), the Paste menu checking the system clipboard on a background thread on Linux so an X11 clipboard owner that never answers no longer freezes the window (#510), PDF/`.ai` import keeping a type object's outline stroke on the type, wrapped lines as area type, barcode digits in place and layers in the file's stacking order (#508), the Italian interface (#514), EPS images with several data sources read in turn (#498), `restore` undoing dictionary changes in EPS import (part of #505), the macOS menu bar laid out as a Mac app's (the VectorCraft menu with Settings, Language and Appearance, the system's Hide, Services and Window items; owner's request), Object › Image Trace › Make tracing with the Default preset instead of asking for a preset's name (#543), the rulers' unit menu (#528), Live Corners on stars, polygons and pen paths (#511), the drawing tools snapping to Smart Guides as the Selection tool does, with Construction Guides (#506), the in-window menus' Select All, Cut, Copy and Paste acting on the text field they were opened from (#516), Windows rendering through DX12 before Vulkan (#545), Image Trace tracing colour layers in parallel and refusing traces too large for memory, with the canvas outlining huge selections by their bounds (#525), SVGs of chosen artboards holding only the art over each artboard (#550), the font menu scrolling only its list, under a search field and filters that stay put (#555), a click on an object of a selection making it the key object that Align aligns to and Distribute Spacing spaces from, drawn with a thicker outline (#541), Shape Builder merges taken from the planar map itself, so merged regions leave no inner edge, hairline gap or spur in their outline (#569), `.ai` written by the exports and the CLI (`--export`, `convert`) as Save As writes it (#526), SVG round trips keeping hidden objects and `data-*` attributes (#522), the gradient stop popover staying open after the click that opens it from the Gradient panel (#577), standard ligatures kept under small tracking and dropped only past about −8% / +22% of a word space or when the character asks for them (#583), the Color panel keeping its height as warnings come and go so a drag on its spectrum no longer flickers near white (#578), fonts that font services such as Adobe Fonts load on Windows, listed through DirectWrite (#579), `.ai` files writing their layers and sublayers as PDF layers, hidden ones with their art, and PDF layers nested in layers importing as sublayers (#372), file dialogs on Linux shown off the UI thread so the compositor no longer finds the window not responding, and parented to the window on Linux and Windows (#592), anchors and handle ends picked from 2 px past their drawn size before the segments through them (#593), an image copied in a browser pasting as the picture, not its address (#597), the Free Transform widget with Constrain, Free Transform, Perspective Distort and Free Distort (#598), touch gestures: a two-finger tap undoes and a three-finger tap redoes (#585), the font menus' live preview staying on the text instead of flickering on and off every frame (#563), Edit Artboards showing the active artboard in the Properties panel with New Artboard, Delete Artboard and Exit (#530), the same DirectWrite fonts in `vectorcraft-cli` and its MCP server (#579), SVG layers keeping their names when wrapped and sublayers round-tripping through SVG (#372), a Layers panel that lays out only the rows in view and keeps a document's open rows in its file (#638), a panel dropped on the dock lights up the icon column it goes back to and pops out of its icon (#649), Image Trace's View modes and an Advanced section that stays as it was left (part of #641), Image Trace's Palette: Limited, Full Tone, Automatic and Document Library (part of #641), Image Trace's Create Strokes: line art traced as stroked centre lines (part of #641), a dual-GPU Mac falling back to its other GPU when one fails to start (#651); see [Honest assessment](#honest-assessment-2026-10-05))._ +_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 window (#493), panels, panel groups and the Tools panel undocking into floating panels that move, stack and dock again (#495), the 0.5.0 startup crash on dual-GPU Linux desktops under Wayland fixed: the desktop's own GPU by default and a restart on the next GPU when one can't show the window (#502), path editing while drawing: Cmd/Ctrl with the Pen borrowing Direct Selection and drawing on afterwards, Pen+Alt reshaping segments, handles of a whole selected path dragging, and handle drags no longer re-gathering snap targets every move (#494), the Control bar's and Properties panel's Convert buttons for a path selected as a whole with Direct Selection, the Pen and the anchor tools (#504), the Pen closing a path dragged out of its first anchor every time, without flicker (#501), the Paste menu checking the system clipboard on a background thread on Linux so an X11 clipboard owner that never answers no longer freezes the window (#510), PDF/`.ai` import keeping a type object's outline stroke on the type, wrapped lines as area type, barcode digits in place and layers in the file's stacking order (#508), the Italian interface (#514), EPS images with several data sources read in turn (#498), `restore` undoing dictionary changes in EPS import (part of #505), the macOS menu bar laid out as a Mac app's (the VectorCraft menu with Settings, Language and Appearance, the system's Hide, Services and Window items; owner's request), Object › Image Trace › Make tracing with the Default preset instead of asking for a preset's name (#543), the rulers' unit menu (#528), Live Corners on stars, polygons and pen paths (#511), the drawing tools snapping to Smart Guides as the Selection tool does, with Construction Guides (#506), the in-window menus' Select All, Cut, Copy and Paste acting on the text field they were opened from (#516), Windows rendering through DX12 before Vulkan (#545), Image Trace tracing colour layers in parallel and refusing traces too large for memory, with the canvas outlining huge selections by their bounds (#525), SVGs of chosen artboards holding only the art over each artboard (#550), the font menu scrolling only its list, under a search field and filters that stay put (#555), a click on an object of a selection making it the key object that Align aligns to and Distribute Spacing spaces from, drawn with a thicker outline (#541), Shape Builder merges taken from the planar map itself, so merged regions leave no inner edge, hairline gap or spur in their outline (#569), `.ai` written by the exports and the CLI (`--export`, `convert`) as Save As writes it (#526), SVG round trips keeping hidden objects and `data-*` attributes (#522), the gradient stop popover staying open after the click that opens it from the Gradient panel (#577), standard ligatures kept under small tracking and dropped only past about −8% / +22% of a word space or when the character asks for them (#583), the Color panel keeping its height as warnings come and go so a drag on its spectrum no longer flickers near white (#578), fonts that font services such as Adobe Fonts load on Windows, listed through DirectWrite (#579), `.ai` files writing their layers and sublayers as PDF layers, hidden ones with their art, and PDF layers nested in layers importing as sublayers (#372), file dialogs on Linux shown off the UI thread so the compositor no longer finds the window not responding, and parented to the window on Linux and Windows (#592), anchors and handle ends picked from 2 px past their drawn size before the segments through them (#593), an image copied in a browser pasting as the picture, not its address (#597), the Free Transform widget with Constrain, Free Transform, Perspective Distort and Free Distort (#598), touch gestures: a two-finger tap undoes and a three-finger tap redoes (#585), the font menus' live preview staying on the text instead of flickering on and off every frame (#563), Edit Artboards showing the active artboard in the Properties panel with New Artboard, Delete Artboard and Exit (#530), the same DirectWrite fonts in `vectorcraft-cli` and its MCP server (#579), SVG layers keeping their names when wrapped and sublayers round-tripping through SVG (#372), a Layers panel that lays out only the rows in view and keeps a document's open rows in its file (#638), a panel dropped on the dock lights up the icon column it goes back to and pops out of its icon (#649), Image Trace's View modes and an Advanced section that stays as it was left (part of #641), Image Trace's Palette: Limited, Full Tone, Automatic and Document Library (part of #641), Image Trace's Create Strokes: line art traced as stroked centre lines (part of #641), a dual-GPU Mac falling back to its other GPU when one fails to start (#651), two fingers dragged on a touch screen panning the canvas (part of #449); see [Honest assessment](#honest-assessment-2026-10-05))._ ## Where we are diff --git a/crates/ui-egui/src/canvas.rs b/crates/ui-egui/src/canvas.rs index 161db60f..a29fb46f 100644 --- a/crates/ui-egui/src/canvas.rs +++ b/crates/ui-egui/src/canvas.rs @@ -516,17 +516,19 @@ fn handle_input(app: &mut VectorcraftApp, ui: &Ui, resp: &egui::Response, rect: prev.is_some_and(|prev| prev != m) }); - // Zoom around the pointer, or scroll ([`wheel`]). + // Zoom around the pointer, and scroll ([`wheel`]): fingers pinching on a touch screen may also + // slide. if resp.hovered() { - if (factor - 1.0).abs() > 1e-6 { - if let (Some(p), Some(vm)) = (hover, app.view_mut()) { - let before = xf.to_doc(p); - vm.zoom = (vm.zoom * factor).clamp(0.0313, 640.0); - let nx = Xf { rect, zoom: vm.zoom, center: vm.center, rot: vm.rotation.to_radians() }; - let after = nx.to_doc(p); - vm.center += before - after; - } - } else if scroll != egui::Vec2::ZERO + if (factor - 1.0).abs() > 1e-6 + && let (Some(p), Some(vm)) = (hover, app.view_mut()) + { + let before = xf.to_doc(p); + vm.zoom = (vm.zoom * factor).clamp(0.0313, 640.0); + let nx = Xf { rect, zoom: vm.zoom, center: vm.center, rot: vm.rotation.to_radians() }; + let after = nx.to_doc(p); + vm.center += before - after; + } + if scroll != egui::Vec2::ZERO && let Some(vm) = app.view_mut() { let d = Xf { rect, zoom: vm.zoom, center: vm.center, rot: vm.rotation.to_radians() }.delta_to_doc(scroll); @@ -673,13 +675,15 @@ fn handle_input(app: &mut VectorcraftApp, ui: &Ui, resp: &egui::Response, rect: /// How much one point of wheel motion zooms (as `exp(points × WHEEL_ZOOM)`). const WHEEL_ZOOM: f64 = 0.01; -/// What the wheel and a pinch did over the canvas this frame: a zoom factor (about the pointer) -/// and a scroll (screen points the content moves). The wheel scrolls, Cmd- and Alt-wheel (Option +/// What the wheel, a pinch and a two-finger drag on a touch screen did over the canvas this frame: +/// a zoom factor (about the pointer) and a scroll (screen points the content moves). The wheel scrolls, Cmd- and Alt-wheel (Option /// on the Mac) zoom. With General › Zoom with Mouse Wheel (`wheel_zooms`) the wheel and Alt-wheel /// zoom, Shift-wheel scrolls up and down and Cmd/Ctrl-wheel sideways. `line` and `page`: points /// per wheel line and page. `alt_turn`: the last wheel turn was an Alt-wheel one (kept by the /// caller across frames). fn wheel(i: &egui::InputState, wheel_zooms: bool, line: f32, page: f32, alt_turn: &mut bool) -> (f64, egui::Vec2) { + // Fingers on a touch screen pan the content with them (a trackpad sends scrolls instead). + let pan = i.multi_touch().map_or(egui::Vec2::ZERO, |t| t.translation_delta); if !wheel_zooms { // egui makes Cmd-wheel (and a pinch) its zoom and the rest a scroll it spreads over a few // frames: the rest of an Alt-wheel turn zooms too, however soon Alt is let go. @@ -688,14 +692,14 @@ fn wheel(i: &egui::InputState, wheel_zooms: bool, line: f32, page: f32, alt_turn } let (zoom, scroll) = (f64::from(i.zoom_delta()), i.smooth_scroll_delta); return if *alt_turn && scroll != egui::Vec2::ZERO { - (zoom * (f64::from(scroll.x + scroll.y) * WHEEL_ZOOM).exp(), egui::Vec2::ZERO) + (zoom * (f64::from(scroll.x + scroll.y) * WHEEL_ZOOM).exp(), pan) } else { - (zoom, scroll) + (zoom, scroll + pan) }; } // The wheel events themselves: egui's own handling turns Cmd-wheel into a zoom. let mut zoom = i.multi_touch().map_or(1.0, |t| f64::from(t.zoom_delta)); - let mut scroll = egui::Vec2::ZERO; + let mut scroll = pan; for e in &i.events { match e { egui::Event::MouseWheel { unit, delta, modifiers, .. } => { @@ -2658,6 +2662,36 @@ mod tests { assert!((zoom - 1.0).abs() < 1e-9 && scroll.x < -1.0 && scroll.y == 0.0, "on: Cmd-wheel scrolls sideways ({zoom}, {scroll:?})"); } + /// Two fingers dragged together on a touch screen pan the canvas with them, under either + /// Zoom with Mouse Wheel setting, and draw nothing (#449). + #[test] + fn two_fingers_dragged_together_pan_the_canvas() { + for wheel_zooms in [false, true] { + let mut app = VectorcraftApp::new(Session::new(), Default::default()); + app.session.execute("file.new", &json!({"width": 400, "height": 300})).unwrap(); + app.session.execute("prefs.set", &json!({"key": "zoomWithMouseWheel", "value": wheel_zooms})).unwrap(); + app.select_tool("rectangle"); + let ctx = egui::Context::default(); + frame(&mut app, &ctx, vec![]); + let c = app.canvas_rect.unwrap().center(); + let touch = |n: u64, phase, pos| egui::Event::Touch { device_id: egui::TouchDeviceId(1), id: egui::TouchId(n), phase, pos, force: None }; + let fingers = |phase, d: egui::Vec2| vec![touch(1, phase, c - vec2(40.0, 0.0) + d), touch(2, phase, c + vec2(40.0, 0.0) + d)]; + let before = *app.view().unwrap(); + // egui-winit moves the pointer with the first finger, as here. + frame(&mut app, &ctx, vec![egui::Event::PointerMoved(c - vec2(40.0, 0.0))]); + frame(&mut app, &ctx, fingers(egui::TouchPhase::Start, Vec2::ZERO)); + for k in 1..=3 { + frame(&mut app, &ctx, fingers(egui::TouchPhase::Move, vec2(10.0, 8.0) * k as f32)); + } + frame(&mut app, &ctx, fingers(egui::TouchPhase::End, vec2(30.0, 24.0))); + let after = *app.view().unwrap(); + let moved = (after.center - before.center) * after.zoom; + assert!((after.zoom / before.zoom - 1.0).abs() < 1e-9, "no zoom: {wheel_zooms}"); + assert!((moved.x + 30.0).abs() < 0.5 && (moved.y + 24.0).abs() < 0.5, "the content follows the fingers ({wheel_zooms}): {moved:?}"); + assert_eq!(app.session.active().unwrap().doc.layers[0].children().unwrap().len(), 0, "nothing drawn"); + } + } + #[test] fn cmd_space_zooms_and_space_pans_whatever_the_tool() { use egui::{Event, Modifiers};