Signex v0.7.0

⚠️ Licensing notice (added 2026-04-29)

This release contained KiCad-derived code (the kicad-parser and
kicad-writer crates, plus the KiCad netlist exporter in
signex-output) shipped under Apache-2.0 in error. Those parts of
the codebase derive from KiCad's GPL-3.0 source and should have
been released under KiCad's reciprocal terms.

From v0.9.0 onwards, KiCad I/O is moved to a separate
GPL-3.0-licensed companion tool: signex-kicad-import.
The main signex repository is Apache-2.0 clean and contains no
KiCad-derived code.

See issue #62 for
context.

What this means for you:

• This release remains available for historical use, but
  please prefer v0.9.0 (or later) for new installations.
• If you have existing KiCad project files, install
  signex-kicad-import
  alongside Signex Community to convert them to native
  .snxsch / .snxpcb formats.
• Apache consumers (embedders / redistributors) of Signex Community
  Edition get a clean Apache codebase from v0.9.0 forward — no GPL
  aggregation in their build closure.

---

Signex v0.7.0 — Validation, ERC, multi-window

The schematic-phase release. Adds ERC & validation, project-wide annotation, real multi-window architecture via iced::daemon, per-window engine/canvas, borderless chrome, and a full Signex brand rollout. Every v0.7.x sub-feature ships under this one tag — no 0.7.1 / 0.7.2 patches.

ERC & validation

• New signex-erc crate with 11 rule kinds (run() single-sheet, run_with_project() cross-sheet)
• Project-wide ERC across open, cached, and unopened sheets
• Cross-sheet BadHierSheetPin: parent pins ↔ child hier-labels, both directions
• ERC markers rendered as overlays — zero KiCad schema drift
• Messages panel with E/W/I severity pips and per-sheet cached results
• Altium-style ERC dialog + Preferences panel (per-rule Error / Warning / Info / Off grid)
• ErcContext abstraction + rule metadata infrastructure
• Shortcuts: F8 Run ERC, F9 AutoFocus, Alt+A Annotate, Shift+Alt+A Reset & Renumber

Annotation

• Project-wide change list parsed from every sheet in the project
• Altium two-column Annotate dialog with Reset All / Reset & Renumber / Reset Duplicates
• Per-symbol lock, draggable modals
• Power-port skip in both annotation and change list
• Design → Annotation submenu matching Altium's layout

Multi-window (iced::daemon)

• Borderless main window + OS-decorated secondary windows
• Modals, tabs, and panels all detach into real OS windows
• Per-window engine: document_state.engines: HashMap<PathBuf, Engine> — every open tab keeps its Engine loaded so undocked tabs edit independently
• Per-window canvas: interaction_state.canvases: HashMap<window::Id, SchematicCanvas> — pan / zoom / selection / render cache per window
• document_state.window_active_path: HashMap<window::Id, PathBuf> — each undocked-tab window can show a different tab
• Canvas events routed via CanvasEventInWindow { window_id, event }
• macOS: process exits when main window closes

Editor & tools

• Lasso freehand select (Altium), bbox child-sheet hit, detached-field support
• Tab / panel drag-reorder with visual feedback
• Reorder picker polish — gray-X cursor while armed, Esc-cancel visible
• Unified gray-X placement cursor across every armed tool
• TAB-during-placement for Line / Rect / Circle / Arc / Polygon (width + fill pre-configured)
• Editable drawing Properties panel with live DrawingPreview canvas
• Stroke colour per drawing (round-trips in KiCad format)
• Erasable numeric text_input (per-field String buffer)
• Context-aware menus — Annotate / ERC / Save / Edit gated by has_schematic / selection
• Net-colour pen — strict-hit snap, union-find flood, render-only overrides, undo stack
• Move / z-order engine commands — MoveSymbolAbsolute, ReorderObjects (Front / Back / JustAbove / JustBelow)
• Active Bar — BringToFront / SendToBack + BringToFrontOf / SendToBackOf pickers
• Reset Duplicate Designators (project-wide, undoable for open tabs)
• Arc (3-click) + Polygon (click-by-click) placement tools

Hierarchical sheets

• Double-click a sheet block → opens the child schematic
• Sheet-pin snaps to all four edges of the hierarchical sheet block
• Sheet-pin interactions + Altium label-style option

Borderless chrome & brand

• Custom title bar: wordmark + menus + drag zone + search bar + min / max / close
• Per-monitor v2 DPI manifest (no bitmap stretching on hi-DPI)
• Roboto UI font (panels / toolbars / menus / dialogs); Iosevka stays the canvas font
• Windows 11 DWM rounded corners + drop shadow via DwmSetWindowAttribute (silent no-op on Win10 and non-Windows)
• Diagonal resize hit zones (NW / NE / SW / SE) via Stack overlay — keeps content y-origin natural
• Header logo bumped 74×24 → 96×31 for readability

Icons & installer

• Signex brand SVGs (mark, wordmark, logo variants)
• Panton Bold wordmark regenerated from actual font (not fallback outlines)
• Tighter signex-mark.svg viewBox: S fills ~97 % of icon canvas (was ~58 %)
• Regenerated installer artifacts: Windows .ico (multi-size), macOS .icns, Linux PNGs
• Runtime window icon embedded via iced::window::Icon
• signex.exe icon + DPI manifest embedded at build time via winres
• Pure-Python fallback for build-icons.sh — tools/build_icons.py, no rsvg-convert / magick / inkscape needed

Refactors

• signex-engine/src/lib.rs split into semantic modules
• kicad-writer migrated from wln! string formatting to full SExpr AST (kicad-parser/sexpr_builder → kicad-writer/sexpr_render)
• Named constants for PCB magic numbers; lib_symbol unit round-trip fix
• Wire rendering chains connected segments into polylines (rounded corners)
• Font-size constants corrected, hidden refs and pin-name rotation fixed

Merged-in dependencies

• v0.6.1 render fixes (font scale, pin numbers, power-ref visibility)
• v0.6.2 AST sexpr pipeline
• v0.6.3 macOS runner pin (macos-14)
• v0.6.4 per-OS installers (.exe, .dmg, .deb, .AppImage)
• Node.js 24 Actions bump

Performance

• expand_to_net is now O(N) via quantised HashSet (was O(P²·N²))

Installers

Platform	Artifact
Windows x64	signex-setup-x86_64-0.7.0.exe
Windows ARM64	signex-setup-aarch64-0.7.0.exe
macOS Apple Silicon	signex-macos-aarch64-0.7.0.dmg
Linux (Debian / Ubuntu)	signex_0.7.0_amd64.deb
Linux (distro-agnostic)	Signex-0.7.0-x86_64.AppImage
Portable Windows	signex-windows-{x86_64,aarch64}-0.7.0.zip
Portable Linux	signex-linux-x86_64-0.7.0.tar.gz

SHA-256 checksums: SHA256SUMS.txt.

Full Changelog: v0.6.4...v0.7.0