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GridSnap/README.md
2026-01-16 01:34:29 +00:00

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# GridSnap for Cinnamon Desktop
A window tiling manager extension for Linux Mint's Cinnamon Desktop, inspired by Microsoft PowerToys FancyZones.
## Features
- **Multiple Zone Layouts**: Pre-configured layouts including 2x2 grid, 3 columns, and focus layouts
- **Visual Overlay**: See your zones while dragging windows
- **Keyboard Shortcuts**: Quick snap to zones using hotkeys
- **Layout Cycling**: Switch between different zone layouts on the fly
## Installation
1. Copy the extension folder to your Cinnamon extensions directory:
```bash
cp -r gridsnap-cinnamon ~/.local/share/cinnamon/extensions/gridsnap@cinnamon-extension
```
2. Restart Cinnamon (Alt+F2, type 'r', press Enter) or log out and back in
3. Enable the extension:
- Open System Settings → Extensions
- Find "GridSnap"
- Toggle it on
## Usage
### Keyboard Shortcuts
- **Super + Z**: Toggle zone overlay (show/hide zones)
- **Super + Shift + Z**: Cycle through different layouts
- **Super + Numpad 1-9**: Snap focused window to zone 1-9
### Mouse Usage
1. Hold **Shift** while dragging a window to see the zone overlay
2. Drop the window over a zone to snap it there
3. Release Shift or move outside zones to cancel
## Available Layouts
1. **2x2 Grid**: Four equal quadrants
2. **3 Columns**: Three equal vertical columns
3. **Focus Left**: Large left area with two smaller right zones
## Customization
To add your own layouts, edit the `DEFAULT_LAYOUTS` object in `extension.js`:
```javascript
const DEFAULT_LAYOUTS = {
'custom-layout': {
name: 'My Custom Layout',
zones: [
{ x: 0, y: 0, width: 0.5, height: 1 }, // Left half
{ x: 0.5, y: 0, width: 0.5, height: 1 } // Right half
]
}
};
```
Zone coordinates are relative (0.0 to 1.0):
- `x`: Horizontal position (0 = left edge, 1 = right edge)
- `y`: Vertical position (0 = top edge, 1 = bottom edge)
- `width`: Zone width as fraction of screen width
- `height`: Zone height as fraction of screen height
## Troubleshooting
### Extension won't load
- Check the Looking Glass console (Alt+F2, type 'lg', press Enter) for errors
- Ensure the UUID in metadata.json matches the folder name
### Overlay doesn't show
- Make sure no other extensions conflict with window management
- Try disabling and re-enabling the extension
### Keybindings don't work
- Check System Settings → Keyboard → Shortcuts for conflicts
- Ensure the extension is enabled
## Development
### File Structure
```
gridsnap@cinnamon-extension/
├── metadata.json # Extension metadata
├── extension.js # Main extension code
├── stylesheet.css # Visual styling
└── README.md # This file
```
### Testing Changes
After editing:
1. Reload Cinnamon: Alt+F2 → 'r' → Enter
2. Or use Looking Glass: Alt+F2 → 'lg' → Enter
### Debug Logging
Add logging in extension.js:
```javascript
global.log('GridSnap: Your message here');
```
View logs with:
```bash
tail -f ~/.cinnamon/glass.log
```
## Future Enhancements
- [ ] Custom layout editor GUI
- [ ] Per-monitor zone configurations
- [ ] Save window positions and restore on login
- [ ] Zone layout import/export
- [ ] More pre-configured layouts
- [ ] Animation effects
- [ ] Settings panel for configuration
## Contributing
Feel free to fork and submit pull requests! Areas that could use help:
- Additional layout presets
- UI improvements for the overlay
- Settings GUI implementation
- Multi-monitor support improvements
## License
MIT License - Feel free to use and modify as needed.
## Credits
Inspired by Microsoft PowerToys FancyZones for Windows.