andrew
ab869119cc
Updates desktop shell and application code for cross-Qt compatibility: uses begin/endFilterChange for Qt 6.10+, gates LayerShell usage to Qt < 6.5, and adds include handling for generated QML type registration files so nebula-shell builds reliably. Also fixes qInfo size formatting casts and updates README commands to invoke run-sway-vm.sh via `sh` for more portable execution.
86 lines
2.0 KiB
Markdown
86 lines
2.0 KiB
Markdown
# Compositor
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Sway is the **temporary** Wayland compositor while Nebula Desktop is developed. Configuration lives in `sway/nebula-sway.conf`.
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Sway currently provides:
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- Wayland compositor
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- application window management
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- XWayland
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- input and the pointer cursor
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- output handling
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Nebula provides the visible shell (Qt Quick/QML via LayerShellQt). The Sway config must not enable a Sway bar.
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A custom Nebula compositor is a later milestone. Do not treat this Sway setup as the final architecture.
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```text
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Ubuntu/Linux
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↓
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Wayland
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↓
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Sway now
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Nebula compositor later
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↓
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Nebula Shell
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Qt Quick/QML
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```
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## Development session
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From the NebulaOS repository root:
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```bash
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sway -c compositor/sway/nebula-sway.conf
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```
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Recommended on the Ubuntu VMware VM (repo-root `cd`, cursor environment, software cursors):
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```bash
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sh compositor/sway/dev/run-sway-vm.sh
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```
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Sway then autostarts Nebula Desktop through `scripts/run-nebula-vm.sh`.
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Skip shell autostart:
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```bash
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NEBULA_SHELL_AUTOSTART=0 sh compositor/sway/dev/run-sway-vm.sh
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```
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### Output / resolution
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The development config uses scale `1` and requests `1920x1080` when that mode is advertised. If it is not, Sway keeps the preferred mode. This is a VM convenience, not a production requirement.
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```bash
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swaymsg -t get_outputs
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swaymsg output <name> mode 1920x1080
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swaymsg output <name> scale 1
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```
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### Cursor
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```text
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seat * xcursor_theme Adwaita 24
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XCURSOR_THEME=Adwaita
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XCURSOR_SIZE=24
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```
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Requires `adwaita-icon-theme`. A Nebula-branded cursor theme is a later task.
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`WLR_NO_HARDWARE_CURSORS=1` is VMware-specific and is set by `run-sway-vm.sh`, not by production session files.
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### Emergency shortcuts
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| Shortcut | Action |
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|----------|--------|
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| Super+Enter | open Foot |
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| Super+Shift+E | exit Sway |
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| Super+Shift+C | reload Sway config |
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Normal application launching is done from the Nebula launcher, not these shortcuts.
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### Rendering
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`scripts/run-nebula-vm.sh` sets `QT_QUICK_BACKEND=software` for the VMware guest GPU. Production `nebula-shell` must not set that variable.
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