ODS writer:
- Header row styled bold on a grey background; data rows alternate
light-grey / white (zebra). Auto-filter buttons enabled per sheet
via `<table:database-range table:display-filter-buttons="true">`
— sheet names are now single-quoted in the target-range-address so
LibreOffice actually parses ranges that contain spaces.
- First row of every sheet frozen via `settings.xml` (view setting).
The settings layout follows LibreOffice's own writer exactly:
`xmlns:ooo` + `xmlns:xlink` declared on the root, `ActiveTable` and
view-level zoom/grid/headers placed *after* the Tables map (the
order LibreOffice expects to read back). HorizontalSplitMode = 0,
VerticalSplitMode = 2 → only the first row is frozen, the first
column scrolls normally. ActiveSplitRange = 2 (bottom-left pane).
`settings.xml` registered in `META-INF/manifest.xml`.
Reusable Yes/No modal:
- New `screen_confirm.cpp` exposing `Tui::ShowConfirm(msg, on_yes)`.
Centred `borderRounded` popup, `No` first (safer default), Enter
confirms the focused button, Esc cancels (treated as No).
- Stacked into the Modal chain in `Run()` (between file-dialog and
error). The outer `CatchEvent` cedes events when it's open.
File dialog:
- Picks `OK` button focus reliably — previously the focus indices in
the Renderer were remapped against the Container::Vertical child
indices, so the OK label only flagged "focused" while the actual
focused child was the filename input.
- OK button uses a custom `ButtonOption::transform` that renders the
label transparent when idle, inverted when focused. No more
cyan-fill, no more double-inversion via FocusLabel.
- After confirmation, if the picked path already exists, pops a
`ShowConfirm("File … already exists. Overwrite?")` before invoking
the caller's action.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
essim — system digital twin
Interactive simulator for the inter-card connections inside a system. Built around a domain model of modules → parts → pins / signals → connections, with importers for Mentor Graphics, Altium and ODS pinout sheets, a TUI shell with scripting, snapshots and BFS net analysis.
Status: early work-in-progress.
Quick start
cmake -S . -B build
cmake --build build -j
./build/essim
Requirements:
- A C++17 compiler.
- CMake 3.14+.
- System packages:
libzipandpugixml(Arch:pacman -S libzip pugixml). - FTXUI (v6.1.9) and doctest (v2.4.11) are fetched at configure time via
FetchContent.
Inside the shell, type help for the live command list — or read the
auto-generated reference at doc/user/commands.md.
A worked bring-up script is at test/system.essim;
load it with source test/system.essim.
Tests
./build/essim_tests
# or
ctest --test-dir build
Skip building tests entirely:
cmake -S . -B build -DBUILD_TESTING=OFF
Documentation
doc/user/— user guide, command reference, scripting.doc/api/— auto-generated C++ API reference.DESIGN.md— implementation notes (domain conventions, TUI internals, gotchas).doc/README.md— how the doc pipeline is wired.
Regenerate auto-generated parts after substantive code changes:
cmake --build build --target doc # needs doxygen + python3
Project layout
src/system/ domain model (Module/Part/Pin/Signal, Connection, Transform, …)
src/imports/ Mentor / Altium / ODS netlist importers
src/tui/ FTXUI shell (commands, screens, completion, history)
tests/ doctest suite
doc/ api/ + user/ Markdown trees, Doxyfile.in, gen_api_md.py
test/ sample netlists + system.essim bring-up script
Full layout & rationale in DESIGN.md.
Licence
Copyright (c) 2026 François Dausseur
Licensed under the European Union Public Licence (EUPL), Version 1.2 —
the "Licence". You may not use this work except in compliance with the
Licence. You may obtain a copy of the Licence in the LICENSE
file or at https://joinup.ec.europa.eu/software/page/eupl.
Unless required by applicable law or agreed to in writing, software distributed under the Licence is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Licence for the specific language governing permissions and limitations under the Licence.
SPDX-License-Identifier: EUPL-1.2