80 lines
2 KiB
Rust
80 lines
2 KiB
Rust
use {
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crate::{
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client::{Client, ClientError},
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leaks::Tracker,
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object::{Object, Version},
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rect::{Rect, Region, RegionBuilder},
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wire::{wl_region::*, WlRegionId},
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},
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std::{cell::RefCell, rc::Rc},
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thiserror::Error,
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};
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pub struct WlRegion {
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id: WlRegionId,
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client: Rc<Client>,
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region: RefCell<RegionBuilder>,
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pub tracker: Tracker<Self>,
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version: Version,
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}
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impl WlRegion {
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pub fn new(id: WlRegionId, client: &Rc<Client>, version: Version) -> Self {
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Self {
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id,
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client: client.clone(),
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region: Default::default(),
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tracker: Default::default(),
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version,
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}
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}
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pub fn region(&self) -> Rc<Region> {
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self.region.borrow_mut().get()
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}
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}
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impl WlRegionRequestHandler for WlRegion {
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type Error = WlRegionError;
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fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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self.client.remove_obj(self)?;
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Ok(())
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}
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fn add(&self, req: Add, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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if req.width < 0 || req.height < 0 {
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return Err(WlRegionError::NegativeExtents);
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}
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let mut region = self.region.borrow_mut();
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region.add(Rect::new_sized(req.x, req.y, req.width, req.height).unwrap());
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Ok(())
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}
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fn subtract(&self, req: Subtract, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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if req.width < 0 || req.height < 0 {
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return Err(WlRegionError::NegativeExtents);
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}
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let mut region = self.region.borrow_mut();
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region.sub(Rect::new_sized(req.x, req.y, req.width, req.height).unwrap());
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Ok(())
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}
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}
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object_base! {
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self = WlRegion;
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version = self.version;
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}
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impl Object for WlRegion {}
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dedicated_add_obj!(WlRegion, WlRegionId, regions);
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#[derive(Debug, Error)]
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pub enum WlRegionError {
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#[error(transparent)]
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ClientError(Box<ClientError>),
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#[error("width and/or height are negative")]
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NegativeExtents,
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}
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efrom!(WlRegionError, ClientError);
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