58 lines
1.3 KiB
Rust
58 lines
1.3 KiB
Rust
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use guillotiere::{AtlasAllocator, Size};
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pub struct Allocator {
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raw: AtlasAllocator,
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}
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impl Allocator {
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pub fn new(size: u32) -> Allocator {
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let raw = AtlasAllocator::new(Size::new(size as i32, size as i32));
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Allocator { raw }
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}
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pub fn allocate(&mut self, width: u32, height: u32) -> Option<Region> {
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let allocation = self
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.raw
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.allocate(Size::new(width as i32 + 2, height as i32 + 2))?;
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Some(Region(allocation))
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}
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pub fn deallocate(&mut self, region: Region) {
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self.raw.deallocate(region.0.id);
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}
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}
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pub struct Region(guillotiere::Allocation);
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impl Region {
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pub fn position(&self) -> (u32, u32) {
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let rectangle = &self.0.rectangle;
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(rectangle.min.x as u32 + 1, rectangle.min.y as u32 + 1)
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}
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pub fn size(&self) -> (u32, u32) {
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let size = self.0.rectangle.size();
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(size.width as u32 - 2, size.height as u32 - 2)
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}
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}
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impl std::fmt::Debug for Allocator {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "Allocator")
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}
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}
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impl std::fmt::Debug for Region {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(
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f,
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"Region {{ id: {:?}, rectangle: {:?} }}",
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self.0.id, self.0.rectangle
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)
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}
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}
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