73 lines
2 KiB
Rust
73 lines
2 KiB
Rust
use std::cell::Cell;
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use std::rc::Rc;
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use crate::ifs::wl_seat::{WlSeatGlobal};
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use crate::ifs::wl_surface::{WlSurface};
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use crate::rect::Rect;
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pub struct CursorSurface {
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seat: Rc<WlSeatGlobal>,
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surface: Rc<WlSurface>,
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hotspot: Cell<(i32, i32)>,
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pos: Cell<(i32, i32)>,
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extents: Cell<Rect>,
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}
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impl CursorSurface {
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pub fn new(seat: &Rc<WlSeatGlobal>, surface: &Rc<WlSurface>) -> Self {
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Self {
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seat: seat.clone(),
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surface: surface.clone(),
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hotspot: Cell::new((0, 0)),
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pos: Cell::new((0, 0)),
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extents: Cell::new(Default::default())
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}
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}
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fn update_extents(&self) {
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let (pos_x, pos_y) = self.pos.get();
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let extents = self.extents.get();
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let (hot_x, hot_y) = self.hotspot.get();
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self.extents.set(Rect::new_sized(pos_x - hot_x, pos_y - hot_y, extents.width(), extents.height()).unwrap());
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}
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pub fn set_position(&self, x: i32, y: i32) {
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self.pos.set((x, y));
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self.update_extents();
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}
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pub fn handle_unset(&self) {
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self.surface.cursors.remove(&self.seat.id());
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}
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pub fn handle_surface_destroy(&self) {
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self.seat.set_cursor(None);
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}
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pub fn handle_buffer_change(&self) {
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let (width, height) = match self.surface.buffer.get() {
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Some(b) => (b.rect.width(), b.rect.height()),
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_ => (0, 0),
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};
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self.extents.set(Rect::new_sized(0, 0, width, height).unwrap());
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self.update_extents();
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}
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pub fn set_hotspot(&self, x: i32, y: i32) {
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self.hotspot.set((x, y));
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self.update_extents();
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}
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pub fn dec_hotspot(&self, hotspot_dx: i32, hotspot_dy: i32) {
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let (hot_x, hot_y) = self.hotspot.get();
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self.hotspot.set((hot_x - hotspot_dx, hot_y - hotspot_dy));
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self.update_extents();
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}
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pub fn surface(&self) -> &Rc<WlSurface> {
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&self.surface
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}
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pub fn extents(&self) -> Rect {
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self.extents.get()
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}
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}
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