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implement shift press plus mouse click text selection

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This commit is contained in:
Frederic Laing 2025-12-22 18:14:15 +01:00 • committed by Jacob Kauffmann
parent 4f791088ef
commit 290be82696
1 changed files with 24 additions and 2 deletions
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26
src/text_box.rs
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@ -27,8 +27,8 @@ use cosmic::{
theme::Theme,
};
use cosmic_text::{
Action, BorrowedWithFontSystem, Edit, Metrics, Motion, Renderer as _, Scroll, Selection,
ViEditor,
Action, BorrowedWithFontSystem, Cursor, Edit, Metrics, Motion, Renderer as _, Scroll,
Selection, ViEditor,
};
use std::{
cell::Cell,
@ -1072,6 +1072,12 @@ where
}
}
Event::Keyboard(KeyEvent::ModifiersChanged(modifiers)) => {
if modifiers.shift() && !state.modifiers.shift() {
let anchor = editor.cursor();
*state.shift_anchor.lock().unwrap() = Some(anchor);
} else if !modifiers.shift() && state.modifiers.shift() {
*state.shift_anchor.lock().unwrap() = None;
}
state.modifiers = modifiers;
}
Event::Mouse(MouseEvent::ButtonPressed(button)) => {
@ -1122,6 +1128,16 @@ where
} else {
ClickKind::Single
};
let maybe_anchor = if state.modifiers.shift() {
state.shift_anchor.lock().unwrap().clone()
} else {
None
};
if let Some(anchor) = maybe_anchor {
editor.set_selection(Selection::Normal(anchor));
}
match click_kind {
ClickKind::Single => editor.action(Action::Click {
x: x as i32,
@ -1136,6 +1152,10 @@ where
y: y as i32,
}),
}
if let Some(anchor) = maybe_anchor {
editor.set_selection(Selection::Normal(anchor));
}
state.click = Some((click_kind, Instant::now()));
state.dragging = Some(Dragging::Buffer);
} else if scrollbar_v_rect.contains(Point::new(x_logical, y_logical)) {
@ -1341,6 +1361,7 @@ pub struct State {
scrollbar_v_rect: Cell<Rectangle<f32>>,
scrollbar_h_rect: Cell<Option<Rectangle<f32>>>,
handle_opt: Mutex<Option<image::Handle>>,
shift_anchor: Mutex<Option<Cursor>>,
}
impl State {
@ -1357,6 +1378,7 @@ impl State {
scrollbar_v_rect: Cell::new(Rectangle::default()),
scrollbar_h_rect: Cell::new(None),
handle_opt: Mutex::new(None),
shift_anchor: Mutex::new(None),
}
}
}