dtourolle
04d8090729
Slint cannot turn a layout on its side, and that is what D-N7 asks for. So the HorizontalLayout holding the rail, the canvas and the develop column becomes a plain Rectangle and each of the three states its own x, y, width and height. With `column-below` false those come out where the layout put them to the pixel — a HorizontalLayout has no spacing or padding of its own, the rail and the column took their declared widths at the two edges, and the canvas was the only child that stretched. The alternative was the column subtree declared twice under two `if`s, which is four hundred lines of bindings copied, in a file whose own notes record a conditional child in a layout as the shape that has produced binding loops here before. The column is the same column either way: the same contents, the same Flickable, the same toggle. `panel-visible` collapses the dock's height exactly as it collapsed the column's width, so `column-width` and `dock-height` are each zero unless the column is both open and on that axis, and the canvas can subtract both without asking which case it is in. The stack inside stretches to the dock's width on its own — a layout that is the direct child of a Rectangle fills it, and the Flickable's viewport was already bound to its own width. Nothing is reflowed; N9 does that. `dock-height` is mandated in style.yaml for the reason `panel-width` beside it is, on the other axis: a dock that sizes itself to its contents is a photograph that changes height when a caption wraps. 480 until N6 measures the device. The seam follows the column round: a hairline down its left edge beside the photograph, along its top edge under it, so it stays between the two.
DarkRoom
A cross-platform, non-destructive RAW photo editor for Linux and Android.
Status: 0.9.0, and no longer a spike. A library opens, culls, develops and exports on both platforms, across eight tagged releases. What is not built is written down rather than merely absent — see docs/outstanding.md for the requirements that have no implementation and why, and docs/technical-debt.md for the compromises that were chosen.
Documentation
| Document | Contents |
|---|---|
| CONTRIBUTING.md | How to land a first change without reading the rest |
| requirements.md | What the software must do — 179 numbered requirements |
| architecture.md | How it is built — crates, GPU pipeline, data model, sync |
| technical-debt.md | Compromises taken deliberately, each with the condition that retires it |
| outstanding.md | What is not built, and whether that is a decision or a gap |
| code-health.md | What a contribution costs, per seam, measured |
| traceability.md | Generated: which requirement is claimed by which file |
| faces.md | Face detection and identity — the models, the licence problem, and what S14 measured |
Building
Desktop:
cargo run -p darkroom-desktop
Android (containerised toolchain, see docker/android):
./docker/android/build.sh cargo ndk -t arm64-v8a build --release
Git LFS is required for the model weights, and the toolchain pins itself. CONTRIBUTING.md has the details and the four commands CI will run against what you send.
Current state
Working. A catalog over a local folder, a Nextcloud account, or a folder a
sync client keeps in virtual-files mode — where a placeholder is treated as the
photograph rather than as a one-byte file. A virtualised library grid with a
capture-time timeline, ratings, labels, keywords, collections and a trash that
survives a crash mid-operation. Card ingest. Face detection and identity, with
the index syncing between devices. A develop pipeline of fifteen declared
operations fused into a single compute dispatch, plus the neighbourhood
operations that cannot be — clarity, texture, capture sharpening, noise
reduction, lens correction, spectral film simulation. Crop, straighten, spot
removal, gradient and subject-segmentation masks, named presets, and a
generated panel that no operation in ui/ is allowed to name. Export to JPEG,
PNG and 8- or 16-bit TIFF with resize and output sharpening.
The zero-copy display path works on desktop. The compute pass writes a texture that Slint composites directly, which is what ARCH §6.1 requires; the readback it forbids costs 96% of frame time at 4K, and
cargo run -p dr-gpu --example bench --features readback
still reproduces that measurement. The one exception is the Android develop view, which reads the frame back through the CPU because zero-copy there needs wgpu's Vulkan swapchain, and that tears a portrait window on a tablet whose panel is mounted landscape. It is debt, not a revision of the rule: the reasoning, the on-device measurements that forced it, and the three separate things any one of which would remove it are in technical-debt.md TD-1.
Not built. Plugins, compare and survey culling, focus peaking, burst grouping, AI denoise, tiled and progressive rendering, and most of the Android platform integration beyond running. The performance targets in §4.1 are unverified rather than unmet — the per-commit benchmark suite §8 requires does not exist, so nothing fails a build on a regression. docs/outstanding.md is the list, with the reasoning.
Licence
GPL-3.0-or-later.