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Allow transforming layers (#244)

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* Allow transforming layers

* Add document_layer function to return non mut
This commit is contained in:
0HyperCube
2021-07-11 10:24:46 +01:00
committed by Keavon Chambers
parent 2d2954d045
commit 764c0fe0f2
1 changed files with 21 additions and 2 deletions
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23
core/document/src/document.rs
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@@ -140,6 +140,24 @@ impl Document {
Ok(root)
}
/// Returns a reference to the layer or folder at the path. Does not return an error for root
pub fn document_layer(&mut self, path: &[LayerId]) -> Result<&Layer, DocumentError> {
if path.is_empty() {
return Ok(&self.root);
}
let (path, id) = split_path(path)?;
self.document_folder(path)?.as_folder()?.layer(id).ok_or(DocumentError::LayerNotFound)
}
/// Returns a mutable reference to the layer or folder at the path. Does not return an error for root
pub fn document_layer_mut(&mut self, path: &[LayerId]) -> Result<&mut Layer, DocumentError> {
if path.is_empty() {
return Ok(&mut self.root);
}
let (path, id) = split_path(path)?;
self.document_folder_mut(path)?.as_folder_mut()?.layer_mut(id).ok_or(DocumentError::LayerNotFound)
}
/// Returns a reference to the layer struct at the specified `path`.
pub fn layer(&self, path: &[LayerId]) -> Result<&Layer, DocumentError> {
let (path, id) = split_path(path)?;
@@ -291,10 +309,11 @@ impl Document {
None
}
Operation::TransformLayer { path, transform } => {
let transform = self.root.transform * DAffine2::from_cols_array(&transform);
let layer = self.document_folder_mut(path).unwrap();
let layer = self.document_layer_mut(path).unwrap();
let transform = DAffine2::from_cols_array(&transform) * layer.transform;
layer.transform = transform;
layer.cache_dirty = true;
self.root.cache_dirty = true;
Some(vec![DocumentResponse::DocumentChanged])
}
Operation::DiscardWorkingFolder => {