ba3b3202e8
Round-trip a raster preview through the DWG's embedded preview slot and
surface it to the OS file managers, so drawings show their contents in
Explorer / Finder / Nautilus instead of a generic document icon.
OCS:
* io::thumbnail — rasterize the scene to a BMP DIB on save (embedded via
acadrust's new Preview type) and read it back on open for the Start
page recent list; `--dwg-thumbnail IN OUT SIZE` CLI extracts a badged
PNG for external thumbnailers.
* io::file_association::install_thumbnailer — self-install the OS
integration on startup: Linux writes a .thumbnailer + hicolor mimetype
icons; Windows registers the IThumbnailProvider DLL under HKCU.
Shared core:
* crates/dwg-thumbnailer — lean (image-only) preview extractor + the
`badge_dwg` full-width "DWG" band, used by every platform so the
ribbon is single-sourced. Ships an rlib+staticlib.
* crates/dwg-thumbnailer-win — IThumbnailProvider COM in-proc server
(cfg(windows), CI-built as a workspace member).
* macos/ — QuickLook thumbnail extension (Swift + C-ABI bridge to the
core staticlib), assembled into a .appex.
Icons & packaging (single SVG source -> per-platform assets in CI):
* assets/mimetypes/image-vnd.{dwg,dxf}.svg — themed file icons.
* packaging: WiX ships dwg/dxf.ico + the thumbnail DLL and points the
ProgIds at them; Info.plist gets CFBundleTypeIconFile + the QuickLook
extension in Contents/PlugIns.
* release.yml — generate .ico (Windows) and .icns (macOS) from the SVGs,
build the QuickLook .appex, and bundle everything.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
19 lines
711 B
TOML
19 lines
711 B
TOML
[package]
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name = "dwg-thumbnailer"
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version = "0.1.0"
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edition = "2021"
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description = "Extracts the embedded preview image from a DWG file for OS file-manager thumbnails"
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license = "MIT OR Apache-2.0"
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# Shared extraction core. Consumers: OpenCADStudio (Linux, via its own
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# `--dwg-thumbnail` mode), the Windows `IThumbnailProvider` DLL, and the macOS
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# QuickLook extension.
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# rlib — OCS and the Windows DLL call `extract` directly.
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# staticlib — the macOS QuickLook extension links the C ABI (`dwg_thumbnail_png`).
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[lib]
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name = "dwg_thumbnailer"
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path = "src/lib.rs"
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crate-type = ["rlib", "staticlib"]
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[dependencies]
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image = { version = "0.25", default-features = false, features = ["png", "bmp"] }
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