43 lines
1.5 KiB
Rust
43 lines
1.5 KiB
Rust
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use super::{Rectangle, RegionAttributes, RectangleKind};
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use std::sync::Mutex;
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use wayland_server::Resource;
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use wayland_server::protocol::wl_region;
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#[derive(Default)]
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pub struct RegionData {
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attributes: RegionAttributes,
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}
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impl RegionData {
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/// Initialize the user_data of a region, must be called right when the surface is created
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pub unsafe fn init(region: &wl_region::WlRegion) {
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region.set_user_data(Box::into_raw(Box::new(Mutex::new(RegionData::default()))) as *mut _)
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}
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/// Cleans the user_data of that surface, must be called when it is destroyed
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pub unsafe fn cleanup(region: &wl_region::WlRegion) {
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let ptr = region.get_user_data();
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region.set_user_data(::std::ptr::null_mut());
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let _my_data_mutex: Box<Mutex<RegionData>> = Box::from_raw(ptr as *mut _);
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}
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unsafe fn get_data(region: &wl_region::WlRegion) -> &Mutex<RegionData> {
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let ptr = region.get_user_data();
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&*(ptr as *mut _)
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}
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pub unsafe fn get_attributes(region: &wl_region::WlRegion) -> RegionAttributes {
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let data_mutex = Self::get_data(region);
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let data_guard = data_mutex.lock().unwrap();
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data_guard.attributes.clone()
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}
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pub unsafe fn add_rectangle(region: &wl_region::WlRegion, kind: RectangleKind, rect: Rectangle) {
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let data_mutex = Self::get_data(region);
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let mut data_guard = data_mutex.lock().unwrap();
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data_guard.attributes.rects.push((kind, rect));
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}
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}
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