ddbc9e63d3
- apply_monitors() shells out to `hyprctl eval` with a `hl.monitor()` Lua call, a BOS-only Hyprland extension. On vanilla Hyprland the eval request itself isn't recognized and failed with a confusing raw hyprctl response. Detect that case and fail with an explicit 'this feature requires BOS' message instead, with tests. - README: documented the BOS dependency for the apply step under Requirements; noted everything else in the TUI works without it. - Cargo.toml: 0.1.0 -> 0.1.1, matching the latest tag (v0.1.1).
104 lines
3.6 KiB
Markdown
104 lines
3.6 KiB
Markdown
# breadmon
|
||
|
||
A terminal UI monitor manager for Hyprland. Lets you position, configure, and mirror displays interactively, then apply changes live via `hyprctl`.
|
||
|
||
## Requirements
|
||
|
||
- **[BOS (Bread OS)](https://git.breadway.dev/breadway/bos)'s patched Hyprland build.** Applying changes (the `a` key / Global keys "Apply") runs `hyprctl eval` with a `hl.monitor({...})` Lua call — a BOS-specific extension that does not exist on vanilla/upstream Hyprland. On a non-BOS Hyprland install, `hyprctl eval` itself is not a recognized request, and breadmon will fail to apply with an explicit error explaining this instead of the raw hyprctl response. Everything else in the TUI (viewing/arranging/saving profiles) works regardless; only the live-apply step needs BOS.
|
||
- The `hyprctl` binary must be on `PATH`
|
||
- Rust toolchain (to build from source)
|
||
|
||
## Build
|
||
|
||
```
|
||
cargo build --release
|
||
```
|
||
|
||
The binary is written to `target/release/breadmon`.
|
||
|
||
If you use the bread ecosystem, `bakery` can install it instead:
|
||
|
||
```
|
||
bread modules install /path/to/breadmon
|
||
```
|
||
|
||
## Usage
|
||
|
||
```
|
||
breadmon
|
||
```
|
||
|
||
The TUI opens with four tabs, switchable by number key or mouse click:
|
||
|
||
| Key | Tab |
|
||
|-----|-----|
|
||
| `1` / F1 | Layout |
|
||
| `2` / F2 | Config |
|
||
| `3` / F3 | Mirror |
|
||
| `4` / F4 | Profiles |
|
||
|
||
### Layout
|
||
|
||
A scaled canvas showing all connected monitors. The selected monitor is highlighted.
|
||
|
||
| Key | Action |
|
||
|-----|--------|
|
||
| `hjkl` / arrow keys | Move selected monitor 1 px |
|
||
| `Shift+hjkl` | Move selected monitor 10 px |
|
||
| `Tab` / `n` | Cycle to next monitor |
|
||
| `Shift+Tab` / `p` | Cycle to previous monitor |
|
||
| `0` | Auto-arrange monitors left-to-right with no gaps |
|
||
| `[` / `]` | Zoom canvas out / in |
|
||
| Mouse drag | Drag monitor to reposition |
|
||
|
||
Monitors snap to each other's edges when dragged or nudged within 10 px.
|
||
|
||
### Config
|
||
|
||
Per-monitor settings for the currently selected display.
|
||
|
||
| Key | Action |
|
||
|-----|--------|
|
||
| `jk` / `Tab` | Move between fields |
|
||
| `hl` / scroll | Cycle field value |
|
||
| `,` / `.` | Scale −0.1 / +0.1 |
|
||
| `[` / `]` | Switch to previous / next monitor |
|
||
| `Enter` | Commit scale edit and apply |
|
||
| `Esc` | Discard pending edits |
|
||
|
||
Fields: Resolution, Refresh rate, Scale, Transform (rotation/flip), VRR, DPMS, Mirror of.
|
||
|
||
The header shows the monitor's PPI and a suggested fractional scale when physical dimensions are available.
|
||
|
||
### Mirror
|
||
|
||
Finds the best common mode between two monitors and sets one to mirror the other. Use `Tab` to move focus between source and target, `hl` to cycle the selection, `Enter` to confirm.
|
||
|
||
### Profiles
|
||
|
||
Named snapshots of the current monitor configuration, stored as TOML files.
|
||
|
||
| Key | Action |
|
||
|-----|--------|
|
||
| `jk` | Navigate profile list |
|
||
| `Enter` | Load selected profile |
|
||
| `d d` | Delete selected profile (double-press within 3 s) |
|
||
| `Tab` | Move focus to name input / save button |
|
||
|
||
Profiles are saved to `~/.config/breadmon/profiles/`.
|
||
|
||
### Global keys
|
||
|
||
| Key | Action |
|
||
|-----|--------|
|
||
| `a` | Apply current configuration via `hyprctl` |
|
||
| `s` | Save current configuration as a profile |
|
||
| `r` | Refresh monitor list from Hyprland |
|
||
| `Ctrl+Z` | Undo last change (up to 20 steps) |
|
||
| `q` / `Ctrl+C` | Quit (prompts once if there are unsaved changes) |
|
||
|
||
breadmon also listens on Hyprland's event socket and reloads the monitor list automatically when a display is connected or disconnected.
|
||
|
||
## Config
|
||
|
||
Profiles are plain TOML files under `~/.config/breadmon/profiles/`. Each file records the monitor name, mode, position, scale, transform, VRR, DPMS, and mirror source. They are created and managed through the Profiles tab; there is no hand-written config file.
|