Add ability to set current image as desktop wallpaper with keyboard
shortcut 'W' and icon button in Properties panel.
Supports COSMIC, GNOME, KDE, XFCE, and tiling window managers via
automatic detection and fallback mechanism.
Implementation uses wallpaper crate with custom COSMIC config file
integration and gsettings/feh fallbacks.
Mark unused message variants with #[allow(dead_code)] to indicate
they are intentionally kept for future implementation:
- OpenPath: for file dialog integration
- RefreshMetadata: for metadata panel updates
- ShowError/ClearError: for error handling UI
- NoOp: fallback/placeholder message
- Fork cosmic::iced viewer widget to enable external state control
- Add bidirectional state synchronization between viewer and AppModel
- Implement ViewerStateChanged message for mouse interaction feedback
- Fix pixel-perfect rendering at 100% zoom (ActualSize mode)
- Ensure smooth interaction between mouse, keyboard, and button controls
This allows zoom/pan to work via:
- Keyboard shortcuts (+/-, Ctrl+arrows)
- Future toolbar buttons
- Mouse wheel and drag (existing functionality preserved)
The viewer state now properly syncs in both directions:
- External controls (keyboard/buttons) → update viewer state via diff()
- Mouse interactions → update AppModel via ViewerStateChanged message
Closes: Zoom/pan via keyboard and buttons now functional
EXIF support and display in the right panel.
New features:
- Extract basic metadata (filename, format, resolution, file size, color type)
- Parse EXIF data (camera, date, exposure, aperture, ISO, focal length, GPS)
- Display metadata in collapsible right panel (toggle with 'i' key)
- Auto-refresh metadata on document navigation
Changes by file:
Cargo.toml, Cargo.lock:
- Add kamadak-exif dependency for EXIF parsing
i18n/en/noctua.ftl:
- Add translation strings for all metadata labels
src/app/document/meta.rs:
- New module for metadata types (BasicMeta, ExifMeta, DocumentMeta)
- Extraction logic with EXIF parsing via kamadak-exif
- Helper methods for formatted display (resolution, file size, camera, GPS)
src/app/document/mod.rs:
- Re-export meta module
src/app/document/{raster,vector,portable}.rs:
- Add extract_metadata() method stubs (full impl for raster)
src/app/document/file.rs:
- Reset metadata on document change
src/app/message.rs:
- Add ToggleRightPanel and RefreshMetadata messages
src/app/model.rs:
- Add metadata: Option<DocumentMeta> field
- Add show_right_panel: bool field
src/app/update.rs:
- Handle panel toggle and metadata refresh
- Auto-refresh metadata on navigation when panel visible
src/app/view/panels.rs:
- Implement right_panel() with metadata display
- Conditional sections for basic info and EXIF data
src/app/view/canvas.rs:
- Integrate right panel into layout"
