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feat: implement crop functionality with self-contained widget

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- Inspired by cosmic-viewer's crop implementation (https://codeberg.org/bhh32/cosmic-viewer)
- Add crop support for all document types (Raster, Vector, Portable)
This commit is contained in:
wfx 2026-01-22 20:40:36 +01:00
parent 9399a008c4
commit 3cf99ad19d
20 changed files with 1042 additions and 103 deletions
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12
src/app/mod.rs
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@ -91,7 +91,7 @@ impl cosmic::Application for Noctua {
});
if let Some(path) = initial_path {
document::file::open_initial_path(&mut model, path);
document::file::open_initial_path(&mut model, &path);
}
// Initialize nav bar model (required for COSMIC to show toggle icon).
@ -221,6 +221,7 @@ impl Noctua {
/// Map raw key presses + modifiers into high-level application messages.
fn handle_key_press(key: Key, modifiers: Modifiers) -> Option<AppMessage> {
eprintln!("DEBUG KEY: key={:?} modifiers={:?}", key, modifiers);
use AppMessage::*;
// Handle Ctrl + arrow keys for panning.
@ -262,9 +263,16 @@ fn handle_key_press(key: Key, modifiers: Modifiers) -> Option<AppMessage> {
Key::Character(ch) if ch.eq_ignore_ascii_case("f") => Some(ZoomFit),
// Tool modes.
Key::Character(ch) if ch.eq_ignore_ascii_case("c") => Some(ToggleCropMode),
Key::Character(ch) if ch.eq_ignore_ascii_case("c") => {
eprintln!("DEBUG MATCH: ToggleCropMode");
Some(ToggleCropMode)
}
Key::Character(ch) if ch.eq_ignore_ascii_case("s") => Some(ToggleScaleMode),
// Crop mode actions (Enter/Escape handled via key press, validated in update).
Key::Named(Named::Enter) => Some(AppMessage::ApplyCrop),
Key::Named(Named::Escape) => Some(AppMessage::CancelCrop),
// Reset pan.
Key::Character("0") => Some(PanReset),